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revision 1.1 by cnh, Tue May 26 14:38:05 1998 UTC revision 1.1147 by jmc, Wed Aug 5 22:58:06 2009 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
8       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
9          and offline_exf_seaice (seaicetd + adjoint).
10    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
11       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
12        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
13    o few changes to pass when compiling with strick checking of arguments
14       across S/R (allow to find few bugs in S/R calls).
15    o pkg/seaice:
16     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
17       2d-fields, for slightly better performance
18    
19    checkpoint61t
20    o pkg/seaice:
21     - remove unused variables in seaice_evp
22     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
23    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
24       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
25       each processor opens a different file (a fix from Matt).
26    o cg2d:
27       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
28       this reduces number of EXCH calls by 2 when using exch2.
29       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
30       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
31    o pkg/thsice:
32       add code for Near Infra-Red albedo (from Jeff)
33       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
34    o ini_model_io:
35       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
36       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
37       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
38    
39    checkpoint61s
40    o pkg/exch2 (exch2_rxN_cube*):
41       remove last BARRIER (no need to synchronise after getting data from shared
42       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
43    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
44      and generate new output (for the 2 tests) using default rotationPeriod.
45    o pkg/exch2:
46      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
47        (was already the case with AUTODIFF_EXCH2 defined)
48      - add bj in exch2 arrays and S/R.
49      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
50        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
51    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
52      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
53        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
54      - verification experiment natl_box.longstep
55    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
56      allow different versions of ifort (8 or 9) and different versions
57       of mpi (mpich or mpich2) to be used with the same optfile.
58      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
59       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
60    o pkg/seaice:
61      fix previous modif (3-level field removed) for old-pickup reading
62    
63    checkpoint61r
64    o pkg/seaice:
65     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
66      1. introduce fields for time step (N-1)
67      2. do not use levels 2 and 3 anymore (but keep them)
68      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
69         includes changes to pkg/thsice/thsice_get_velocity.F,
70         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
71         pkg/obcs/obcs_apply_uvice.F.
72     - completely remove code for leap-frog time stepping for second order
73       advection
74     - adjusted adjoint accordingly;
75       gradient checks have improved by an order of magnitude!
76    
77    checkpoint61q
78    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
79     - the boundary conditions along open boundaries are unclear, because the
80       associated masks are set to zero and are thus treated as closed when
81       applying the slip-boundary conditions.
82     - move initialisation of grid variables from seaice_init_varia to _fixed
83    o adding doc/diags_changes.txt
84    o model/src:
85      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
86       to avoid "_diags" naming if no relation to pkg/diagnostics.
87      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
88       file and only call PLOT_FIELD_XYZ if debugMode=T.
89      remove few PLOT_FIELD_XY calls outside initialisation.
90      remove few unnecessary BARRIER.
91    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
92      of salt_plume package in Southern Ocean
93    o pkg/thsice:
94     - fix hOceMxL in overlap (needed for sea-ice advection);
95       update output of experiment global_ocean.cs32x15.icedyn.
96    o pkg/seaice:
97     - make the (placeholder-)tracer IceAge a little more meaningful
98      by avoiding ridging of age due to convergent ice flow
99     - add diagnostics for surface temperature, atmospheric and oceanic
100       heat flux, and atmospheric and oceanic ice growth
101    
102    checkpoint61p
103    o eesupp (global_max & global_sum):
104     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
105     - remove starting & endding barrier (no longer needed)
106    o pkg/mdsio, writelocal:
107       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
108       (remove the STOP): uses shared buffer IO to store data from all threads
109       and then let master-thread write nThreads tiles.
110    o pkg/mdsio (read/write field):
111     - tiled IO done in 1 piece (all levels at a time);
112     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
113     - multi-threaded: allow to read/write local (non-shared) array
114       (was already working with singleCpuIO ; now works also without);
115       => no longer needs barrier call after reading a file (added inside
116       mds_read/write field).
117     - move barrier calls outside gather/scatter_2d to mds_read/write_field
118    o pkg/obcs/exf
119      - exf_getffieldrec.F: add a few ". _d 0" and
120                            add code to catch the case fldperiod = 0.  
121      - obcs_precribe_read.F: change if statements so that they match
122                              the variable type (_RL)
123      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
124        exf_iprec) as part of namelist EXF_NML_01
125    o pkg/mdsio:
126      - read/write tiled (local) files: read/write 1-level tile chunk at a time
127        (instead of segment of length sNx); expected to speed up tiled IO.
128    o pkg/exch2:
129      - take buffer copy from/to array out of S/R exch2_send/recv into new
130        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
131        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
132      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
133      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
134        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
135        including Topology header file (and common blocks).
136      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
137        remove 2nd exch call in exch2_s3d_rx (no longer needed).
138      - document S/R arg. list (+ update some comments)
139    o pkg/seaice:
140      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
141        temperature and humidity over sea ice based on climatological values.
142      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
143        of LSR (this change is expected to change the results slightly because now
144        it uses slightly difference moduli from the second last LSR solution, but
145        that is more consistent with the stress computations; this part of the code
146        is not tested in the verification experiments)
147      - fix diagnostics for flux of ice in case of B-grid
148      - turn strain rates eij and press into global fields within global
149        common block in SEAICE.h for more straighforward diagnostics
150      - fix diagnostics for principal stress components, press, zeta, eta
151        to give something meaning full
152    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
153      new output (all 4 tests) using default rotationPeriod.
154    o pkg KPP:
155      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
156      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
157        and normal grid from 1 to Nr)
158    o Fix computations of L4rdt in mom_calc_visc.F
159    o eesupp:
160      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
161      should be called before a "stop" if we know that all process are going
162      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
163    
164    checkpoint61o
165    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
166    o model/src/ini_curvilinear_grid.F:
167       compute angleSin/CosC when they are not read from a file
168    o pkg/seaice:
169       add pseudo time stepping for LSOR
170    o pkg/exch2:
171       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
172    o pkg/seaice:
173       Adding separate sea ice albedo, drag coefficients, and HO in Southern
174       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
175    o SingleCpuIO:
176       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
177    o pkg/seaice:
178       put exchanged variable in (local) common block for MPI+Multi-Threads
179       to work (necessary with exch1, and for now with exch2 too).
180    o verification: to get more experiments tested with mpi, mth and mpi+mth,
181      change tiling of:
182       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
183       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
184      update output of exp:
185       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
186       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
187      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
188                       (note: output.txt generated on faulks using only 1 tile)
189    o eesupp & mdsio (SingleCpuIO):
190     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
191       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
192       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
193     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
194     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
195       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
196    o pkg/exch2:
197     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
198       read parameter file "data.exch2" if it exists; otherwise try default regular
199       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
200     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
201       with new code (not to be used, just as a backup solution).
202     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
203       in utils/exch2/input.
204    
205    checkpoint61n
206    o eesupp & mdsio (SingleCpuIO):
207      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
208        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
209        receive real*4 array (instead of real*8) to read/write 32.bit files.
210        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
211         and remove new mapping S/R)
212    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
213      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
214        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
215        when using exch2. Add S/R to map global io-buffer to global model array.
216      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
217    
218    checkpoint61m
219    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
220      and add 3 other S/R for other types (R4,R8,RS).
221      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
222    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
223     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
224     - reduce number of macro definitions (keep only those which are used);
225       can always call directly the corrresponding S/R if needed.
226     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
227       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
228     Fixed wrong type of arg in:
229       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
230       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
231     To fix: global_sum of var in common block is wrong (multi-threaded) in:
232       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
233     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
234    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
235      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
236    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
237    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
238      edges are closed (zero depth); might happen with "blank tiles";
239      for now, disabled if using OBCS.
240    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
241      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
242    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
243      to reduce length of 1.D array print in STDOUT.
244    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
245      + use 48 tiles (16x8): this will allow to test "blank tiles".
246    o start to test MPI + multi-threaded (change testreport to skip tests
247      where number of tiles do not match).
248    o genmake2: add option "-omp" to turn on Open-MP ;
249      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
250    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
251      and keep the original tile numbering. Note: compatible with old
252      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
253    
254    checkpoint61l
255    o Overlaps had been forgotten in calculating ijk keys : fixed
256    o fix cyrus makedepend for gcc 4.4
257    o experiment fizhi-cs-aqualev20:
258      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
259      and generate new output. Note: new output is much closer to the old
260      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
261      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
262    o pkg/fizhi:
263     - change to avoid indices going deliberately over array-bounds
264     - remove unnecessary MPI stuff
265     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
266     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
267       does not go over array-bounds and therefore returns reliable output.
268     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
269       this S/R has 4 output arguments, which are used inside "get_alarm";
270       when it is called with the same variable "ndum" in place of several
271       output arguments, this produces weird side effect inside "get_alarm"
272      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
273       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
274       address) and produces error.
275    o tools/gemake2: (March 27-29 2009)
276      with option "-mpi": link *_mpi files from "MODS" dir (this is what
277      testreport does).
278    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
279    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
280       update lab_sea.lsr & lab_sea.salt_plume results
281    o pkg/seaice:
282      Major overhaul of the LSOR solver: change discretization from original
283      finite differences to finite volume. The old routine is still in the
284      file seaice_lsr.F and can be turned on with the CPP-flag
285      SEAICE_OLD_AND_BAD_DISCRETIZATION
286      Along with this change, the discretization of the strain rates is changed.
287      The same flag turns on the old discretization in seaice_calc_strainrates.F
288      All verification experiments with seaice are affected (except for
289      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
290      results by setting the above flag.
291      Further changes involve changes in defaults:
292      - ALLOW_FLOODING is defined and turned on by default
293      - SEAICEadvSnow = .true. is now the default
294      - SEAICEadvSalt = .true. is now the default
295      - SEAICEadvAge  = .true. is now the default
296      - SEAICE_clipVelocities  = .false. is now the default
297                                         (as per J. Zhang's recommendation)
298      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
299        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
300      - seaice_growth: replace computation of UG by a simple copy from wspeed
301    
302    checkpoint61k
303    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
304      seaice_lsr: fixed a few metric terms,
305                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
306                  add more debugging diagnostics
307      seaice_evp: removed superfluous many metric terms of FV discretization
308                  of stress divergence
309                  affects lab_sea, lab_sea.hb87
310      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
311                  of stress divergence for non-evp solver
312                  (this part is not tested anywhere)
313      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
314                  they were effectively only half slip
315                  affects lab_sea.hb87
316      updated all relevant verification experiments (except lab_sea//output_adm.txt
317        which was left over, but fails at level 7 & 6)
318    
319    checkpoint61j
320    o pkg/seaice: turn a few hard wired parameters into run time parameters
321    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
322      time in seconds as promised by the usints in seaice_monitor and exf_monitor
323    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
324      that are not cubed-sphere grids
325    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
326    o pkg/ctrl:
327      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
328    o non-hydrostatic (calc_gw.F):
329      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
330      update output of exp. global_ocean.cs32x15.viscA4
331    o remove backward compatibility for thetaMin,phiMin
332      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
333    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
334      interpolated wind field not only for curvilineargrid=.true., but also
335      for a rotated grid (rotateGrid=.true.)
336    o pkg/exf: add capability to bypass interpolation for runoff
337      by setting yet another CPP-flag
338    o eesupp/src, B-grid exchange:
339      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
340    o autodiff
341      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
342      allows to switch to single-prec common blocks;
343      corresponding switch occurs in tamc.h, integer isbyte
344      TAF store directivs "byte" and "kind" seem equivalent;
345      Most tamc.h have been updated correspondingly.
346    
347    checkpoint61i
348    o autodiff:
349      fix autodiff_sore/_restore indices for obcs
350      (spotted by I. Hoteit, M. Mazloff)
351    o pkg/autodiff, pkg/ctrl:
352      Add flag to reduce all tapelev I/O to single-prec.
353      In data.ctrl set
354        doSinglePrecTapelev = .TRUE.
355    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
356      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
357    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
358      real fresh water flux (not yet)
359    o pkg/mdsio & rw:
360     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
361     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
362    o pkg/flt:
363     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
364       init_fixed & ini_varia.
365     - clean-up & simplify linear interpolation S/R:
366       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
367     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
368     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
369     - add vert. coordinate & horiz. indices to output files.
370     - change vertical position in initial condition, from index to depth [m].
371     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
372       (easier to get to a curvilinear grid) ; delX,delY no longer used.
373    o pkg/ggl90: a few modifications:
374     - fix bottom boundary condition, and interpolation of KappaE
375       near top and bottom
376     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
377     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
378     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
379    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
380      (maintain temporary backward compatibility, until next checkpoint)
381    
382    checkpoint61h
383    o pkg/diagnostics with "periodic averaging diagnostics":
384      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
385    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
386    o pkg/obcs: fix loop ranges for balancing code
387    o pkg/flt:
388     - improve criteria for finding which tile owns a float.
389     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
390    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
391      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
392      with ocean biogeo)
393    o pkg/flt:
394     - do some cleaning and fix the restart ;
395     - add output.txt in flt_example/results to get this pkg tested.
396    o genmake2: add an EXTENDED_SRC option and flag.
397       for now, cannot be turned on on command line (only through genmake_local)
398    o pkg/mdsio: read/write vector:
399     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
400     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
401       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
402     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
403      (drop to 4 digits matching for grad). But this test does not look very
404      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
405    
406    checkpoint61g
407    o pkg/flt:
408      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
409       + make OPTIONS file more standard.
410      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
411      - fix _BYTESWAPIO CPP-Flag
412      - standard reading of file-parameter "data.flt"
413      - fix argument list of S/R FLT_RESTART
414      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
415    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
416    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
417      a still unfixed compiler/optimization bug
418    
419    checkpoint61f
420    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
421      update results of global_ocean.cs32x15.icedyn test.
422    o move getcon.F from model/src to pkg/fizhi.
423    o pkg/exf: add parameter for extrapolation of temp up to the surface
424       and option to prevent negative evap (in bulk_largeyeager04 only).
425    o Prather Advection scheme: fix tracer conservation for divergent flow
426      (e.g., when using NonLin Free-Surface).
427    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
428    o gmredi (Visbeck-variable-K):
429     - add more parameters to Visbeck-variable-K.
430     - use a 5 points average for dSigmaR in Visbeck-K calculation
431       (more "homogenous": same stencil and same weights as in dSigmaH)
432     - update output of ideal_2D_oce experiment.
433    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
434      (#undef REAL4_IS_SLOW)
435     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
436       coordinate variable
437     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
438       (surface forcing fields), removes some of the functionality
439     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
440     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
441       probably not all: copy _RS surface flux fields to RL field before
442       calling DIAGNOSTICS_FILL
443     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
444       real*4 (CALL EXCH_*_RS) versions.
445     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
446       (generate new output).
447    
448    checkpoint61e
449    o gmredi (Visbeck-variable-K):
450      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
451      - change computation of Visbeck-K where Slope > Smax :        
452        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
453        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
454    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
455      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
456    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
457    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
458      does not become too large (to avoid precision problems in implicit-diffusion
459      solver); update ideal_2D_oce output.
460    o pkg ggl90:
461      - in ggl90_cal.F: compute only one set of visc/diff, used to
462        step forward TKE/T/S/momentum
463      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
464        have Prandlt =1)
465    o gmredi (fm07):
466      - add lower limit on Transition layer thickness + lower limit on 1/lambda
467      - allow to set few more params from data.gmredi
468    o pkg ggl90:
469          - add missing sqrt(2) factor in computation of mixing length
470            scale in ggl90_calc.F
471            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
472    
473    checkpoint61d
474    o adjoint modifs
475      - adapt to new field rhoInSitu
476      - allow to revert from StoreDynVars2D, StoreDynVars3D
477        to individual fields
478        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
479    o store 3-D (in-situ) density in commom block (DYNVARS.h)
480     - save 1 rho computation.
481     - no longer modify T & S inland when using down_slope pkg.
482    o gad_som : allow to switch to SOM advection for T & S without corresponding
483      pickup files (using new S/R: MDS_CHECK4FILE).
484    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
485      (for useSingleCpuIO to work in multi-threaded)
486    o pkg/shelfice:
487     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
488       with SHELFICEtopoFile in data.shelfice
489     - move code for reading ice shelf topography and modifying hFacC into separate
490       subroutines of the shelfice package
491     - separate initialisation of "fixed" and "variable" variables
492     - kTopC is not (yet) replaced by kSurfC, although this is possible
493    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
494    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
495      and rename:
496      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
497      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
498    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
499    
500    checkpoint61c
501    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
502      to add mass source/sink of fluid in the interior (3-D generalisation
503      of oceanic real-fresh water flux).
504    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
505    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
506    o new pkg: down_slope
507      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
508      - presently, modify T & S inland (dwnslp_calc_rho.F).
509        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
510      - implementation for ocean in P-coords not tested.
511      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
512    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
513      (to facilitate conversion of oceanic pkg to p-coordinate).
514    o change FIND_RHO to FIND_RHO_2D :
515      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
516    o new pkg: cheapaml
517    
518    checkpoint61b
519    o exch2:
520      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
521      - no longer depend on the order sequence (N,S,E,W).
522      - 3rd exchange no longer needed (tested with 24 tiles).
523      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
524      - exch_UV_A-grid readily available (but not yet tested).
525      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
526      (both are no longer needed) in exch_uv: no effect in forward run; but
527       get truncation error differences with adjoint exch.
528    o exch2:
529     - change index-bounds storage (moved from target to local tile,
530       more intuitive this way) ; rename/remove some variables.
531     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
532    
533    checkpoint61a
534    o exch2/matlab-topology-generator:
535      fix bug in index bounds for N-S internal exchange (hard to tell if this
536      had any effect on the solution).
537    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
538      is exceeded
539    o testreport: modify syntax of awk, so that it works also with
540      awk, and not only with nawk and gawk
541    
542    checkpoint61
543    o autodiff
544      Change default for TAF usage by removing argument '-nonew_arg'
545      This changes TAF subroutine argument list (ordering of active var.)
546      Omission of this flag leads to incompatibility w.r.t. TAMC
547      To restore TAMC-compatibility, need following modifs:
548      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
549      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
550      Tested TAF version is 1.9.22
551      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
552    
553    checkpoint60
554    --->>> This is the last checkpoint for which generating the adjoint
555    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
556    --->>> by default.
557    --->>> Future checkpoints will ommit this flag by default.
558    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
559    o pkg/grdchk: Add gradient check to etan0 perturbations.
560    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
561    o pkg/autodiff: more flexibility in zeroadj.
562      model/src: modifying do_oceanic_phys.F accordingly.
563    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
564    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
565      special setup of gmredi for which the adjoint is stable
566      enough for parameter optimization.
567    o bridging the gap between eddy stress and GM.
568      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
569          along with a change in CPP option (now ALLOW_EDDYPSI).
570      -> when using GM w/ GM_AdvForm:
571          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
572          is applied either in the tracer Eq. or in momentum Eq.
573          depending on data.gmredi (intro. GM_InMomAsStress).
574      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
575      The key modifications are in model/src/taueddy_external_forcing.F
576      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
577    
578    checkpoint59r
579    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
580      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
581      fix option to read coriolis(@ cell-corner) from files with CS-grid.
582    o pkg/mnc: add some attributes to standard 1D-coordinate variables
583    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
584      mass points, when using mnc for output
585      - add runtime parameter (missing_value, missing_value_int) to override
586        default (which is the value of getcon('UNDEF'))
587    o pkg/mnc: prepare mnc for the actual use of missing values with the
588      diagnostics package: small fix in mnc_cw_readwrite.template and more
589      initialisation of never used fields
590      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
591      versions
592    o pkg/thsice/thsice_ini_vars.F added default initial values so that
593      thermodynamics sea ice solver does not blow up when some initial fields
594      are missing.
595    o move from external_forcing_surf.F to ini_forcing.F
596      the p-coord. hack consisting in using pLoad to set phi0surf ;
597      update output of tutorial_global_oce_in_p (affected @ truncation level).
598    o Freshen up a bit hs94.1x64x5, notably:
599      remove rotationPeriod and tRef=5*0. (adjoint only), and add
600      exactConserv=.TRUE.
601    o pkg/generic_advdiff:
602      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
603      applies to files where Temperature & Salinity 2nd Order moments are used.
604    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
605      this uses a dynamically allocated internal state data structure
606      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
607      and requires a fortran 90 compiler
608    
609    checkpoint59q
610    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
611       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
612    o Refresh tutorial_global_oce_biogeo, notably:
613      - change bathymetry (put back seamounts in ACC, use hFacs)
614      - change EOS (POLY3 --> JMD95Z)
615      - use Bryan-Lewis vertical diffusivity
616      - use multidimensional advection
617      - remove old virtual virtual in dic pkg, now done through ptracer pkg
618      - change a couple of parameters in dic pkg
619    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
620    o pkg/obcs: change default to OBCSfixTopo = .true.,
621      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
622      - replace "debugMode" with "debugLevel .GE. debLevB"
623    o implementation of TAF directives for gchem,cfc,dic
624    o remove "exp5" (replaced by tutorial_deep_convection).
625    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
626      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
627      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
628      --> changes results in exp4, seaice_obcs
629    o tutorial_deep_convection :
630      update the set-up and increase resolution and domain size ; start
631      from pseudo initial conditions = output at t=120mn in order to see
632      something happening when running testreport.
633    o pkg/seaice: add os7mp as an advection scheme
634                  add check for advection schemes
635                  add a flag for restoring T and S underneath sea ice
636    o pkg/my82: add netcdf-support and diagnostics
637    o thsice pkg:
638      - Now hsMax limits snow height by turning it into ice following
639        flooding scheme (and now conserving energy)
640      - Slight rewriting of the formula in thsice_calc_thick.F
641      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
642      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
643    
644    checkpoint59p
645    o gchem / dic / cfc :
646      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
647      - add new parameter files: "data.dic" & "data.cfc" ;
648      - various re-arrangement in initialisation & header file ;
649      - fix tutorial_global_oce_biogeo for multi-threaded test.
650    o pkg/dic: test for "pickup_dic" file when restarting ;
651      if no pickup-file, can restart with a re-initialised pH (same as it did
652      before) providing pickupStrictlyMatch is set to False.
653    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
654      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
655    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
656      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
657    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
658     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
659       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
660    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
661       scheme to use for vorticty-term ;
662     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
663       (with default selectVortScheme, return to original discretisation)
664     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
665    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
666    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
667      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
668      also fix diagnostics VISCAHW & VISCA4W.
669    
670    checkpoint59o
671    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
672    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
673      move a few statemens out the main loop into separate loops
674    o pkg/shelfice:
675      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
676        (kg/m^2/s), does not break tests, because in verification/isomip,
677        rhoConstFresh=rhoConst (by accident)
678      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
679      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
680        new file model/src/seawater.F, so that they are available for all pkgs.
681      - convert potential temperature into in-situ temperature. This changes the
682        isomip tests => update tests
683    o add a flag writePickupAtEnd (default=true) to be able to suppress
684      writing a pickup at the last timestep
685    o tools/mpack-1.6 :
686      - disable automake (not working) and autoconf (not needed).
687      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
688        also cleaner with much less compilation warnings.
689    o pkg/profiles:
690      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
691      (for "less than 32 characters name" compiler requirement)
692    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
693      conditions that have a different sampling frequency than S/T/U/V obcs
694    o pkg/diagnostics (stats-diags):
695      - fix global Min/Max in case 1 processor get only empty tiles
696    o genmake2: replace (4 times)
697         make genmake_tc_1.o >> genmake_warnings 2>&1
698      with
699         COMM="$CC $CFLAGS -c genmake_tc_1.c"
700         echo $COMM >> genmake_warnings
701         $COMM >> genmake_warnings 2>&1
702      to make genmake2 always see the value of CC as specified in the optfile.
703    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
704      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
705      - modify verification advect_cs test to test SOM-advection on CS-grid.
706    o pkg/ctrl:
707      - Rewrite of ctrl_map_ini_ecco.F,
708        introducing a generic routine (ctrl_map_ini_gen.F).
709      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
710    
711    checkpoint59n
712    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
713      number in dedicate array "hdiag":
714      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
715        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
716      - many small changes (integer format) for large number of diagnostics
717      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
718        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
719    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
720      usingSphericalGrid, this allows to define the rotated grid coordinates
721      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
722      geographical coordinates according to the inverse of the rotation defined
723      by the Euler angles, so that Coriolis parameter and online-interpolation by
724      exf works with the geographical coordinates on XC/YC/XG/YG.
725      Naturally, this feature does not work with all packages, so some
726      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
727      profiles), because there the coordinates are assumed to be regular
728      spherical grid coordinates.
729    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
730      - introduce isopycnal diffusion coefficient control.
731    o tools/adjoint_options:
732      - additional control vector components.
733    o pkg/mnc: have mnc create marginally meaning full coordinate variables
734      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
735    o pkg/mypackage:
736      - add example of read/write pickup for state-var ;
737      - add entry points to the main code for state-vars diags & write-pickup.
738    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
739      transitions for useExfYearlyFields
740      - add new subroutine that determines the file to read from for
741        use*YearlyFields = .TRUE. and .FALSE.
742      - add a verification experiment to global_with_exf that tests
743        useExfYearlyFields with USE_EXF_INTERPOLATION defined
744    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
745      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
746      subroutines (which could be generated from a template, because they are
747      almost identical), for now they are included in obcs_prescribe_read.F for
748      simplicity
749    o pkg/exf:
750      - add a little more diagnostic to exf_interp_read (in analogy to
751        mds_read_field, can be turned off with debugLevel < debugLevA=1)
752      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
753        ugly but fast by unrolling short inner loops, inserting a unroll=8
754        directive in routine lagran, and splitting a loop and making do while the
755        outermost loop (the latter requires the intoduction of index arrays)
756    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
757    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
758      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
759    o verification/seaice_obcs: updated for restart test and latest options
760    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
761      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
762      for now this is only available for the C-grid code and also within
763      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
764    
765    checkpoint59m
766    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
767      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
768    o gad_som : fix flux output (& diagnostics) to have same units as other  
769      advection scheme fluxes (was previously multiplied by deltaT).  
770    o added verification/seaice_obcs both to test seaice open boundaries
771      and to provide an example matlab scrpt for generating them
772    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
773    o pkg/salt_plume: clean up salt_plume_frac.F to
774      remove redundancy in PlumeMethod 1 and 4
775    o pkg/kpp: added saltplume diagnostics
776    o pkg/obcs and pkg/seaice:
777      - do not set uice and vice to zero when OB*icefile are unspecified
778      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
779      - moved seaice tracer obcs after call to seaice_growth
780    o pkg/salt_plume: added various options for salt plume depth
781      criterion and for vertical distribution of the salt
782    
783    checkpoint59l
784    o pkg/ptracers: new version of ptracers pickup:
785      read meta file and write only fields which are needed to restart.
786      ( same logic as main pickup file ; also using pickupStrictlyMatch )
787    o pkg/seaice:
788      - add timescale for melting due to warm mixed layer as a means of
789        setting SEAICE_availHeatFrac more conveniently
790      - add a CPP-flag/runtime parameter check for flooding algorithm
791      - reformulated availHeat in seaice_growth.F to be independent of AREA
792    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
793      unit changes
794    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
795    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
796      SX vector computer.
797    o pkg/seaice:
798      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
799        seaice forcing fields can now be read only through pkg/exf
800      - removed some unused halos
801    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
802    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
803      or U/VICE from U/VWIND before computing U/VSTRESS
804    
805    checkpoint59k
806    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
807      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
808    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
809      all experiments pass when compile with un-initialised var. checking option.
810    o added pkg/salt_plume
811    o script to test restart (for now, in MITgcm_contrib/jmc_script)
812    o pkg/seaice: new read/write pickup version.
813      read meta file and write only fields which are needed to restart.
814      ( same logic as main pickup file ; also using pickupStrictlyMatch )
815    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
816    o lab_sea.hb87: modify the domain & update output.hb87.txt :
817      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
818      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
819      process. Fixed here by closing the domain at the Northern boundary.
820    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
821    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
822      a set of consecutive levels in/from a 3-D array.
823    o pkg/ptracers:
824      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
825      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
826    
827    checkpoint59j
828    o in pkgs: dic, obcs, offline, rbcs:
829      standard way to compute coeff. for time interpolation between 2 time reccords
830      which retains full precision (& make results less dependent on compiler).
831      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
832    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
833      packages instead of reading ice cover and wind speed separately
834    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
835     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
836      to allow to compile customized code before the update)
837    o cleaning-up:
838      - fix CPP instruction syntax in pkg/obcs
839      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
840        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
841      - fix some threads issue in IO parts.
842    o pkg/dic:
843      - add tons of "_d 0" (--> much better testreports !)
844       and then update outputs of tutorial_global_oce_biogeo
845    o pkg/mom_fluxform:
846      add a special version of momentum advection intended to conserve momentum
847      next to a bathymetry step or a coastline edge. (default = off = #undef)
848    o new read/write pickup version:
849      - for now, only implemented for main (mdsio) pickup file.
850      - write out only what is needed to restart; merge pickup_nh , pickup_ph
851        and main pickup together.
852      - read meta file; read only what is needed to restart; stop if a field
853        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
854        if it make sense (even if the restart is not perfect).
855      - if no meta file, assume that pickup to read corresponds exactly to
856        a pickup that would currently be written.
857      - read pickup written in the old format (until checkpoint59i) if it
858        recognizes an old meta file (no field-list).
859      - add a meta file in exp. which starts from a pickup: 2 cases:
860        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
861         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
862        b) a meta file describing the content of the associated pickup file
863         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
864    o pkg/mdsio & pkg/rw:
865      - new routine to read a meta file ; new set of routine to read
866        Multiple-fields file (with meta file).
867    o added open boundary conditions capability for seaice
868        HSNOW, HSALT, UICE, and VICE
869    
870    checkpoint59i
871    o adjoint:
872      * fix multiDimAdvection adjoint
873        (partial recomputation problem by TAF for fVerT(:,:,kDown)
874        and comlev1 size definition (maxpass vs. max. number of tracers)
875      * verification/global_ocean.90x45x15 adjoint now tests
876        NLFS and multiDimAdvection using DST3 (=30)
877      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
878    o pkg/kpp: add "_d 0" to real constant (if missing);
879      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
880      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
881    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
882      for internal parameters related to restart process (formerly from PARAMS.h)
883      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
884    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
885      as argument. (only atm2d & obcs write_pickup have not yet been updated)
886    o pkg/monitor:
887      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
888      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
889      - account for deep Atmosphere factor and density factor (anelastic)
890    o added open boundary conditions capability for seaice HEFF and AREA
891    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
892      thermodynamics
893      - requires a little reorganization, which affects the testreport results
894        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
895        so that now the conservative form is tested
896      - add a few comments
897    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
898    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
899    o add new diagnostics to seaice: advective, diffusive fluxes (only for
900      multidim-advection, for scheme 2 they are not filled) and transports,
901      thermodynamic growth rates
902    o change units of EmPmR (inside the code, + within coupling interface)
903      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
904      Affects results @ truncation level (cg2d match) and update output of
905       experiments: lab_sea(6), global_ocean.90x40x15(10),
906      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
907      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
908      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
909      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
910    
911    checkpoint59h
912    o pkg/exf:
913      - improve vectorization by moving if-statement out of loops in
914        exf_mapfields, exf_radiation
915      - exf_bulkformulae.F: introduce 2D fields and vectorize code
916    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
917    o testreport:
918      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
919        monitor & update offline_exf_seaice exp. output.
920      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
921    o pkg/seaice:
922      - bug fix in the evp solver: boundary conditions were affected be
923        masking of zMax/zMin (changes results)
924      - minor bug fix in boundary conditions in seaice_calc_strainrates
925        (changes results for no_slip)
926      - seaice_lsr.F: make interpolation of eta dependent on boundaries
927      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
928      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
929        stress formulation and no-slip boundary conditions
930    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
931      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
932    o pkg/seaice: a first HSALT time stepping equation has been checked in
933    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
934      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
935      without requiring DO-IF statements
936    o pkg/thsice:
937      use continuous power-law function for partition of energy between lateral
938      melting/freezing and thinning/thickening ; old code using step function
939      still available with #undef THSICE_FRACEN_POWERLAW
940      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
941    o testreport: change AD testing : check against results/output_adm.txt
942      using same scripts as for forward test.
943    
944    checkpoint59g
945    o adjoint testing: in preparation for changing testreport:
946      - output format: cost and grad written on separated lines
947      - ad output results in directory "results" (instead of "results_ad")
948    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
949    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
950    o pkg/ecco: allow user defined cost function contributions
951    o testreport:
952      Allow to choose (per experiment) the list of tested output variables
953       and the main variable (used to issue a pass/FAIL ) ;
954      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
955      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
956      Also modify printing of summary:
957       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
958       b) echo the list of tested variables in the individual summary.txt of
959          each experiment.
960    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
961      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
962      (but still depend on the tile decompostion of the domain).
963    o pkg/seaice: change a discretization detail to make the B-grid code
964      "more symmetric". This change is likely to remove all "ridges/leads" that
965      where quasi-aligned with the grid in B-grid solutions. It may also be
966      the solution to the stress coupling issues with the B-grid.
967    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
968      remove .cvsignore from input dir. (since testreport no longer run here).
969    o pkg/thsice:
970     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
971     - fix reshaping of sea-ice just after advection:
972       melt all the ice only if ice-volume is too small.
973     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
974       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
975     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
976    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
977      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
978    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
979      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
980      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
981      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
982      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
983      -> update output.txt
984    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
985     this affects truncation error: -> update output.txt of exp:
986      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
987      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
988    
989    checkpoint59f
990    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
991    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
992      a bounded range (in forward mode)
993    o pkg/ecco, ctrl, autodiff and mom_common:
994     internal parameter controls, completements of implementations
995    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
996    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
997      (not seem any difference in testing results).
998    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
999       at face corners.
1000    o pkg/generic_advdiff:
1001     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1002      loop range indices for computing vertical advection tendency
1003      and do the calculation in the interior only (no overlap) ;
1004      for now, only implemented for SOM advection (to save CPU time).
1005     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1006    o exch2 adjoint
1007      First set of changes:
1008      - add exch2 hand-written adjoint templates
1009      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1010        This will require cleanup in pkg/autodiff/*.F
1011        (changed routines currently kept separate in verif. code/)
1012      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1013        that used to hide exch2 or cubed-sphere specific code
1014        (commented via 'cph-exch2')
1015    o pkg/seaice
1016      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1017    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1018       output of global_ocean.cs32x15.thsice .
1019    
1020    checkpoint59e
1021    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1022      for B-grid vector (not yet tested) and C-grid vector (<- only used
1023      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1024    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1025      (#ifdef ALLOW_SALT_PLUME)
1026    o gather_2d/scatter_2d: removed halo regions
1027    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1028      scheme and the corresponding test case (under front_relax dir). For now,
1029      only available with Skew-flux form and not yet tested in realistic set-up.
1030      adjoint: store directives updated, but gradient checks deteriorated,
1031      so maybe GM/Redi adjoint is now broken.
1032    o seaice adjoint
1033      * add AREA, HEFF, HSNOW as control variable
1034        (should not change lab_sea results)
1035      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1036    o pkg/seaice:
1037      * added computation of saltFlux in seaice_growth;
1038        For time being, sea ice salinity is assumed constant
1039        contribution of snow flooding to freshening of sea ice is neglected.
1040        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1041        defaults to 0.0 in order to maintain backward compatibility.
1042        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1043      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1044      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1045        heat content used to melt or grow ice
1046      * commented out cap of HICE: it helps keep ice thinner
1047      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1048      * applied OBCS T/S mask to HEFFM sea ice mask
1049    
1050    checkpoint59d
1051    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1052     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1053     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1054    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1055     and change default value of parameter "GM_Small_Number";
1056     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1057       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1058       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1059    o pkg/ecco: cost function when applying pkg/smooth to controls
1060    o pkg/ctrl: add forcingPrecond run time parameter
1061    o pkg/seaice:
1062     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1063     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1064       changes verification/lab_sea
1065     - rearrange implicit part of u-equation in LSR solver to make it easier to
1066       read, understand, and debug. This causes changes at the truncation level.
1067     - fix (serious) bug in the boundary conditions (sign error in the implicit
1068       part) of the LSR solver. Changes all LSR results.
1069     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1070       is initilized with small values - does not change lab_sea results.
1071     - added HsnowFile initialization capability
1072    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1073     initialization of pkg/smooth and application to control vector
1074    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1075    o dependencies: pkg/profiles requires pkg/cal
1076    o pkg/profiles:
1077     - added option ALLOW_PROFILES_GENERICGRID
1078         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1079         that interpolation information (grid points and coefficients) is provided
1080         within the netcdf input files.
1081         -> sample matlab scripts can be found in MITgcm_contrib/gael
1082         that allow you to prepare netcdf input files.
1083     - also modified: cleaner include statements, cleaner error print statements,
1084       cleaner stops when error, and more tests of the netcdf input files consistency.
1085    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1086    o pkg/seaice:
1087     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1088       requires a new routine: seaice_diagnostics_fill.F
1089     - make sure that seaice does not move if not forced (pressure replacement
1090       method, Hibler and Ip, 1995), changes results
1091     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1092     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1093       It is turned off by default (=-1.), because it changes the results.
1094     - make it possible to read AREA from a file, too.
1095    
1096    checkpoint59c
1097    o add S/R and diagnostics for oceanic mixed-layer depth
1098    o move GMRedi call after all vertical mixing schemes (including KPP)
1099    o pkg/thsice:
1100     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1101      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1102    o pkg/obcs:
1103     - bug fix for balance code
1104    o pkg/seaice:
1105      - allow values of SEAICE_elasticParm > 1
1106      - add new parameter SEAICE_evpTauRelax as an alternative
1107        to SEAICE_elasticParm
1108      - make lsr boundary conditions free slip (by default), changes result
1109      - add code for no slip boundary conditions for lsr
1110      - set minimum of zeta to zero (and not 4e8) (changes results)
1111      - add a cap on AREA after advecting AREA if seaice_growth is not called
1112    o change calculation of Visbeck K:
1113      - no longer depend on tapering scheme; instead, compute slope (limited
1114        by GM_maxSlope). this is equivalent to what was comuted before with
1115        clipping or linear tappering.
1116      - fix vertical averaging (wrong by 1/2 level)
1117      - leave the old version (but will not be maintained) within
1118        #ifdef OLD_VISBECK_CALC / #endif
1119      - update output of exp. ideal_2D_oce
1120    o change error catch in calc_r_star to improve vectorization
1121    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1122      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1123    o adjoint:
1124      Re-organized adjoint checkpointing according to Matt Mazloff
1125      (but with modifs/completions/cleanups)
1126      Storing is now bundled into large arrays to optimized I/O
1127      (and second step in cleanup of the_main_loop)
1128    
1129    checkpoint59b
1130    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1131      - export/import (between ocean & coupler) fields needed for ocean DIC.
1132    o pkg/seaice:
1133      - get rid of three more exchanges seaice_calc_viscosities (required
1134        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1135      - bug fix in seaice_ocean_stress (update of lab_sea required)
1136      - reduce loop boundaries to necessary minimum also in seaice_evp
1137      - go back to the old way of computing deltaC/Z as the adjoint likes that
1138        better
1139    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1140      passive tracer to an Age Tracer) + update output.txt
1141    o pkg/exf:
1142      - implement A-grid / C-grid selection for wind-stress input files.
1143      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1144      for now, in exf_bulk_largeyeager04.F only :
1145      - change implementation for case where windspeed + 2. components wind-stress
1146        are read-in. AND use rhoConstFresh to convert evap.
1147    o pkg/seaice:
1148      - use correct EXCH_UV for wind-forcing (on A-grid).
1149      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1150        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1151    o pkg/exf:
1152      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1153      EXF_INTERPOLATION:
1154      - merge global_with_exf/code version of exf_interp_read.F
1155        to the main code ;
1156      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1157        reading the file ; Important: This options needs to be defined to recover
1158        previous code.
1159        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1160      - no longer loose real*8 precision along the way when using exf_iprec=64.
1161    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1162      - change discretisation of evp-solver in order to avoid another exchange
1163        (changes lab_sea) and clean up a little
1164      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1165        help the adjoint (this also changes the results slightly)
1166      - add a few "_d 0" where they had been missing in seaice_evp.F
1167      - cleaning up: remove unused seaice_calc_rhs.F
1168    o pkg/exf: some cleaning-up:
1169      - change various "constants" into runtime parameters
1170      - cleaned-up Large&Yeager04 routine which should eventually
1171        replace exf_bulkformulae.F (changed names of S/R and CPP)
1172        and merged various ALLOW_ATM_WIND options
1173     only used with thsice pkg (in thsice_get_exf.F):
1174      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1175        which are used when useStabilityFct_overIce=TRUE (= the default)
1176      - change default values of ice & snow emissivity and scale downward LW
1177        by ice & snow emissivity.
1178    o pkg/thsice:
1179     fix few little problems, in thsice_calc_thickn.F:
1180      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1181      - melt only laterally if hIce < hThinIce (as the comments say)
1182      and in thsice_extend.F:
1183      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1184      - start to form ice as soon as the minimum ice-volume is reachable.
1185     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1186      and cpl_aim+ocn
1187    o pkg/kpp
1188     - move computation of surface related input fields to KPP into a new
1189       subroutine kpp_forcing_surf.F
1190     - remove wrong (within bi,bj loops) EXCH calls.
1191     - little cleaning (add argument myThid in last position, cvs header ...)
1192     - for now, fix conservation problem by exchanging KPPviscAz (may not
1193       be the best fix)
1194    o pkg/seaice
1195     - check for inconsistent evp parameter/cpp-flag combination
1196     - remove leftover errIO flat for obsolete name list error handling
1197    o OpenAD
1198     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1199    
1200    checkpoint59a
1201    o pkg/seaice: some parameter clarifications and a little bit of clean up
1202    o pkg/thsice: rename run-time parameters:
1203       himin       -> hIceMin
1204       himin0      -> hThinIce
1205       hihig       -> hThickIce
1206       i0          -> i0swFrac
1207       transCoef   -> bMeltCoef
1208       frac_energy -> fracMelting
1209      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1210       with default values (for now) that do not change the results.
1211      remove old version of thsice vars advection in pkg/seaice.
1212    o in FFIELDS.h:
1213      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1214      - make pLoad & sIceLoad always available (but still only used if
1215         ATMOSPHERIC_LOADING is #define).
1216    o pkg/kpp: replaced _KPP_RL with _RL
1217    o bug fixes for vertical diffusivity computations when both KPP and
1218        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1219        are no longer updating the vertical diffusivity array
1220        (passed as argument) but are (re-) setting those arrays.
1221    o pkg/seaice: fix bug in evp solver, while doing that
1222      - change (improve?) discretization of stress computations for both
1223        cgrid-lsr and evp solver
1224      - add a new routine to compute strain rates
1225      - the above changes lab_sea results
1226      - add no slip conditions for evp solver (off by default), lsr-version
1227        may follow
1228      - fix exchange for shear at Z-points (does not change lab_sea)
1229      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1230        (to force the user to pick a time step since there is not "safe" way
1231        of choosing it)
1232      - add principal stress diagnostics
1233      - rearrange fields for evp a little to avoid having to call a: too many
1234        exchanges and b: exchanges for stress trensor components which we do
1235        not have.
1236      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1237        of evp, complete rewrite for lsr case (latter is does not yet work
1238        in all cases)
1239    o pkg/kpp: add code to have mixing in shelf ice caverns
1240      - add myThid to all kpp routines (long overdue)
1241    
1242    checkpoint59
1243    o pkg/exf:
1244      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1245        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1246      - move exf header files from lower_case.h to UPPER_CASE.h ;
1247        add missing cvs Header & Name
1248      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1249      - add namelist param. selectStressGridPosition, exf_monFreq
1250      - retire many _CLIM routines, and remove data.exf_clim
1251        + params moved to data.exf
1252        + climsst, climsss now handled by exf_set_gen, i.e.
1253          climss?period=0 refers to constant field,
1254          climss?period=-12 to monthly forcing
1255      - split up namelists in data.exf
1256    o pkg/seaice:
1257      - remove seaice_exch and seaice_exch_uv
1258      - remove superfluous exchange of theta
1259      - add myThid to seaice_budget_ocean/ice
1260      - add new interface for atmospheric wind forcing (C-grid only)
1261        + new routine
1262        + two new field (taux, tauy for stress over ice)
1263        + removed one global field (DAIRN) for C-grid case only
1264    o pkg/thsise
1265      - 2nd set of modifs for thsice adjoint in conjunction with exf
1266    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1267    
1268    checkpoint58y_post
1269    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1270      vertical diffusivity, similar to that in MOM4; turned on using
1271      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1272      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1273    o Added capability for 3D specification of background vertical diffusion
1274      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1275      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1276      "data" file that contains the 3D vertical diffusivity coefficients.
1277    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1278      - add code within pkg thsice to advect & diffuse sea-ice fields
1279      similar to (and will replace) what has been added in  seaice_advdiff.F,
1280      but: - conserving Mass, Heat & Salt.
1281           - better when using non-linear advection scheme (not yet fully tested)
1282           - can also be used in atmospheric set-up (for now, only the diffusion).
1283    
1284    checkpoint58x_post
1285    o IO option for global-file compact format:
1286      - add options when generating topology (utils/exch2/matlab-topology-generator)
1287      - add I/O capability (pkg/mdsio).
1288      - adapt utils/matlab/rdmds.m to read this format.
1289      for now long-line format not yet supported by pkg/mdsio (& exch2).
1290    o shelfice: add a few diagnostics
1291    
1292    checkpoint58w_post
1293    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1294      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1295      (and replace horiVertRatio in NH code).
1296      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1297                         and tutorial_plume_on_slope (sensitive to truncation)
1298    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1299      directly to drive seaice model (C-grid only)
1300    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1301     - reintroduce computation of wind from stress,
1302     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1303       mass points to avoid tau = 0
1304     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1305    o rdmnc.m: make it work with "global" files created with gluemnc
1306    o rdmnc.m : some improvements in dealing with singleton dimension
1307      (tested on all testreport mnc output files).
1308    o genmake2: disable pkg/profiles if netcdf test fails.
1309    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1310    o move call to cal_readparms up to make calendar parameters/variable available
1311      to all packages
1312    
1313    checkpoint58v_post
1314    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1315      useDynP_inEos_Zc tested.
1316    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1317    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1318      and portions thereof.  See read_cs.txt for description and examples.
1319    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1320      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1321      following the great-circle arc between those 2 points.
1322    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1323      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1324    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1325     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1326     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1327     - still needs work (not working with some options ; efficiency to improve)
1328       and serious testing.
1329     - use this scheme for temperature & salinity in 2 advection test exp.:
1330       advect_xy & advect_xz, respectively.
1331    
1332    checkpoint58u_post
1333    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1334    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1335    o testreport: add option "-skipdir" to skip some test.
1336    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1337      momentum calculation.
1338    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1339    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1340      remove checkpoint.F and the_correction_step.F (no longer used);
1341      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1342    o add option (linFSConserveTr) to correct for tracer source/sink due to
1343      Linear Free surface
1344    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1345    o pkg/thsice: fix reading mnc-pickups
1346    
1347    checkpoint58t_post
1348    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1349    o pkg/mdsio:
1350     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1351       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1352       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1353     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1354     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1355       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1356     - new S/R (to replace MDSWRITEMETA), which allows to write more
1357       informations (variable names, time ...) to meta files.
1358     - modify rdmds.m to give back the meta file content.
1359    o pkg/diagnostics: change vertical interpolation to be safer, and more
1360       flexible (define p-levels to interpolate to in data.diagnostics);
1361      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1362       diagnostic pointer.
1363    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1364    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1365    o fix multi-category seaice:
1366     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1367       SEAICE_MULTICATEGORY
1368     - fix short wave heat flux
1369    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1370       and allow to use EVP solver. Change forward lab_sea: test both EVP
1371       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1372    o Initial check-in of lab_sea adjoint
1373      (very similar to natl_box_adjoint/code_seaice)
1374      * used C-grid and EVP solver
1375      * used KPP, GM/Redi
1376      * uses inAdExact=.TRUE.
1377      * gradient checks fail for both ADM and TLM
1378        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1379        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1380        issue is related to forward mismatch between g77 an ifort
1381    o pkg/seaice: overhaul of thermodynamics
1382     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1383     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1384     - move a few global fields out of SEAICE.h into seaice_growth.F and
1385       make them 2D (FICE/QNETO/ ...)
1386     - remove FO (it is the same as QNETO)
1387     - introduce a few local fields to avoid modifying external fields such
1388       as atemp, etc.
1389    
1390    checkpoint58s_post
1391    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1392      changed exf_set_gen.F so that
1393        genperiod=0 means input file is one time-constant field and
1394        genperiod=-12 means input file contains 12 monthly means
1395    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1396      this affects truncation error ; generate new output file for exp. which
1397      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1398        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1399        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1400        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1401        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1402        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1403    o start implementation of deep-atmosphere and anelastic formulation
1404    o verification: remove 2nd copy of input files and use script "prepare_run"
1405      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1406    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1407    o profiles: fix for multithreaded case
1408    
1409    o diagnostics: rename few diags:
1410      s/'PRESSURE'/'RCENTER '/g
1411      s/'TICE    '/'oceFreez'/g
1412      s/'TAUX    '/'oceTAUX '/g
1413      s/'TAUY    '/'oceTAUY '/g
1414      s/'SWFLUX  '/'oceQsw  '/g
1415      s/DIFx/DFxE/g
1416      s/DIFy/DFyE/g
1417      and add few ocean-forcing diagnostics:
1418      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1419    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1420      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1421      as actual snow thickness.  It now refers everywhere to effective snow
1422      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1423    
1424    checkpoint58r_post
1425    o modifications to pkg/seaice/growth.F, which change results of
1426      lab_sea experiment: fixes pertain to melting snow over open water, to
1427      masking EVAP under sea ice, and to using the correct AREA variable for
1428      computations of EVAP, PRECIP, HSNOW, and GHEFF
1429    o add ability to read bathy, salt, and theta using MNC (off by def)
1430    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1431      both are turned off by default and do no change any results
1432    o seaice advection with pkg/thsice: a step toward the use of non-linear
1433      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1434    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1435      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1436      in natl_box (affects results @ truncation level: update output.txt)
1437    o multi-threading and IO:
1438      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1439      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1440        (needed to work with SingleCpuIO): tested in all verif. exp.
1441    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1442      affects the results (but none of the verification test uses this scheme).
1443    o Adding some pkg/diagnostics capability to pkg/seaice
1444      (will certainly be subject to changes)
1445    o ctrl: adding new control variables:
1446      lwflux, lwdown, evap, snowprecip, apressure, runoff
1447    
1448    checkpoint58q_post
1449    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1450      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1451      high_res_cube configuration by 4% on Columbia.
1452    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1453      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1454      dynamical allocation (seems to work in multi-threaded).
1455    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1456      single CPU io) so that TAF does not have to see EESUPPORT.h
1457    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1458    
1459    checkpoint58p_post
1460    o obcs: stop if obcs is used with useCDscheme = .true.
1461    o shelfice:
1462     - fix a sign error so that no slip at shelfice interface works
1463     - remove stop for combination non-hydrostatic code and shelfice. That does
1464       not mean, that the results are correct, but at least they are numerically
1465       stable
1466    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1467    o added adjoint exch routined for all exch*3d* routines
1468      and updated flow directives
1469    
1470    checkpoint58o_post
1471    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1472      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1473    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1474      and clean-up reading/writing of pickup files.
1475    o fix local version of read/write pickup (NH part) in rotating_tank/code
1476    o simplify EXCH interface:
1477     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1478     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1479    o added the regrid package
1480    o shelfice:
1481     - add a simple boundary layer scheme to reduce noise
1482     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1483    
1484    checkpoint58n_post
1485    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1486       local variable (not in common block).
1487    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1488      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1489      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1490        to work with SingleCpuIO.
1491    o add "_d 0" to real constant of pkg/cfc subroutines ;
1492       update exp. cfc_exemple & tutorial_cfc_offline output files.
1493    o multi-threading and IO:
1494      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1495        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1496      - barrier before and after reading.
1497      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1498      - avoid using MDS_WRITELOCAL for LAND pkg output.
1499      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1500        common-block variables ; Allows multi-threading with master-thread IO.
1501    o change default MAX_NO_THREADS from 32 to 4 ;
1502      and stop cleanly when MAX_NO_THREADS is too small.
1503    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1504    
1505    checkpoint58m_post
1506    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1507       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1508    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1509       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1510       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1511    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1512        add MITgcm_tutorials (= code + all the tutorials)
1513    o ecco, option to compute cost for total ssh (mean+anom)
1514    o consistent with addition of ptracer and ssh in pkg/profiles
1515    o profiles: adding ptracer and ssh
1516    o testreport: change multi-test output-file name
1517      (from output.txt.{name} to output.{name}.txt)
1518    o profiles: now ok for mutli-tiles case
1519    o seaice: add 4 parameters for different advection schemes for area,
1520      (effective) seaice thickness, enthalphy, and snow height. Their default
1521      is the standard parameter SEAICEadvScheme
1522    o calc_gw:
1523     - add cosFacU in zonal viscous flux (harmonic.visc.).
1524     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1525       of tutorial_plume_on_slope.
1526    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1527    o calc_gw: true flux-form, account for horizontal grid spacing.
1528      update rotating_tank results, but not plume_on_slope (affected at
1529      truncation level, 11 digits).
1530    
1531    checkpoint58l_post
1532    o calc_gw:
1533     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1534     - remove side-drag for now (need to fix it); update plume_on_slope results.
1535     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1536    o commit code to make SST/SSS weights spatially variable
1537      (based on either variable in-situ or variable initial T/S weights)
1538    o pkg/ecco:
1539      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1540        now based on horizontally varying weights wthetaLev, wsaltLev
1541      * cost_averagesflags now returns year indices in addition to day, month
1542      * sflux balance is performed on annual basis
1543        (sflxumm, sfluxmm2, bal_sfluxmm)
1544      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1545        including separate counting and multipliers
1546    o pkg/rbcs
1547      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1548    
1549    checkpoint58k_post
1550    o testreport:
1551     - always build in dir. "build" (if not there, mkdir build instead of building
1552       & running in input)
1553     - run in dir run (if it exists), in build otherwise.
1554     - call prepare_run (if input/prepare_run exists)
1555     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1556    o pkg/exf modifications to interpolation and rotation routines for more
1557       reasonable treatment of North Pole singularity: for tracers North Pole
1558       value is set to northernmost zonal-mean value, for zonal velocity it is
1559       set to zero, and for meridional velocity it is set to northernmost value.
1560    o pkg/exf/exf_check_range.F
1561     - add tile index to diagnostics and move stop statement to the very
1562       end of the routine.
1563    o pkg/diagnostics: (diagnostics_main_init.F)
1564      define title of isomorphic variables according to the current config.
1565    o pkg/thsice with pkg/seaice dynamics:
1566    - fix domain of computation (interior only, required for exf) and do exchanges
1567    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1568    o towards a standard way of dealing with multi-threading in MONITOR
1569      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1570    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1571       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1572    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1573    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1574    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1575       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1576    o tracer advection:
1577     - clean-up and simplify calc_common_factors.F
1578     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1579       advection subroutine (but still not used within DST advection S/R)
1580    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1581    
1582    checkpoint58j_post
1583    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1584      from file (collects calls previously in FORWARD_STEP)
1585    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1586    o adjoint store dir. adjusted accordingly
1587    o genmake2
1588      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1589    
1590    checkpoint58i_post
1591    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1592      on wind stress (SEAICEstressFactor defaults to 1.)
1593    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1594      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1595    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1596      on CS-grid: no longer loosing mass.
1597    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1598    o pkg/ggl90: fix sloppy output and fix a bug
1599    o pkg/seaice: added SEAICEuseEVPpickup parameter
1600      - Set to false in order to start EVP solver with
1601        non-EVP pickup files when using SEAICEuseEVP
1602      - fix sign error in diffusion in seaice_calc_rhs
1603    
1604    checkpoint58h_post
1605    * Modifications for bottom topography control
1606      o replace hFacC by _hFacC at various places
1607      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1608      o add non-self-adjoint cg2d_nsa
1609      o update autodiff support routines
1610      o re-initialise hfac after ctrl_depth_ini
1611      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1612    * Adding verification for 5x5 box (4-layer) bottom topography control
1613    
1614    checkpoint58g_post
1615    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1616       used for mean seasonal cycle, mean diurnal cycle); add an example
1617       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1618    o pkg/ggl90:
1619      - add parameter (minimum surface kinetic energy)
1620      - fix bug (avoiding division by zero)
1621    o couple pkg/thsice to pkg/seaice:
1622      - modify advection in seaice to accomodate new scalar fields to be advected
1623      - only muliDimAdection scheme work with seaice/thsice
1624      - mapping of thsice-variables to seaice-variables, back and forth
1625      - does not break the verification experiments, but does not give the
1626        desired results either
1627    o pkg/seaice
1628      - make (default) second order advection a bit less confusing?
1629    
1630    checkpoint58f_post
1631    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1632      to pkg/seaice):
1633      - new routines thsice_map_exf and thsice_get_exf provide the interface
1634      - add an additional formal parameter to thsice_solve4temp
1635    o pkg/exf:
1636      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1637      - correct Stefan-Boltzmann constant
1638      - new parameter for longwave surface emittance
1639      - separate some stuff from exf_bulkformulae into new routines  
1640        exf_radiation, exf_wind
1641      - add new parameters and constants: longwave emissivity for ocean, ice
1642        and snow, evaporation parameters over ice
1643      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1644        either wind from stress or stress from wind
1645    o pkg/thSIce:
1646    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1647    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1648       and THSICE_CALC_THICKN
1649    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1650    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1651      to make debugging easier.
1652    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1653    o pkg/bulk_force:
1654      - clean-up comments and parameters ;
1655      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1656    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1657      generate new output for test-experiment: aim.5l_cs.thSI
1658    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1659      testreport accordingly
1660    
1661    checkpoint58e_post
1662    o SEAICE_CGRID adjoint done
1663    o R_STAR adjoint implemented.
1664      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1665      * need to sort out init. of h0facc, etc.
1666    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1667      to be able to use it in pure forward.
1668    
1669    checkpoint58d_post
1670    o upgrade simple test-experiment to tutorial example:
1671     step.1: duplicate the experiment and (step.2) will remove the old copy.
1672      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1673      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1674      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1675      tutorial_global_oce_biogeo    <- copy of dic_example
1676      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1677      tutorial_plume_on_slope       <- copy of plume_on_slope
1678      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1679      tutorial_global_oce_optim     <- empty for now (David ?)
1680      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1681     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1682    o correct a sign problem in cost_scat.F
1683    o obcs and ptracers: fix boundary conditions for advections schemes
1684      with larger stencil
1685    o thsice adjoint: start
1686    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1687      completeness
1688    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1689      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1690    o ptracers adjoint:
1691      * avoid extensive recomputatations
1692      * fix missing re-init. of gptr (missed by TAF)
1693    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1694      me to turn off the excessive output to STDOUT that this package produces
1695    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1696      and add those terms in Vector-Invariant formulation.
1697    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1698      if the control period (xx_hfluxperiod etc) is 0
1699    o in profiles pkg, clean routines and fix details
1700    o in ecco pkg, reading ssh data:
1701      fix problem in case the model does not start at iter0=0
1702    o fix mnc-pickup/restart for ptracers
1703    o new package prifiles:
1704      code to compute profile-based cost by Gael Forget
1705      (modifs in ecco, ctrl, autodiff)
1706    o Benign bug fix in initialization (spotted by M. Mazloff) of
1707      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1708    
1709    checkpoint58c_post
1710    o adjoint: finish NLFS adjoint and provide reference output in
1711      verification/global_ocean.90x40x15/results_ad_nlfs
1712    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1713      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1714      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1715      with SEAICE_CGRID defined.
1716    o move calendarDumps from "data" to "data.cal" and clean-up the code
1717      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1718    o add useEXF & useCAL flags (for now, set in hard-coded way)
1719    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1720      (were missing in NH mode, and wrong in quasihydrostatic mode).
1721      waiting for Chris updated version of calc_gw to add those CALLs.
1722    o fix bug in quasihydrostatic S/R ;
1723      add a test for this option: global_ocean.90x40x15.qshyd
1724    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1725      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1726    o add on/off flag useOffLine for package OFFLINE
1727    o seaice:
1728      - modify advection so that it works also on the C-grid
1729      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1730        problem in multi-tile runs with C-grid
1731      - add flags for clipping ice velocities and/or masking solver forcing
1732      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1733        C-grid solver
1734      - added a few comments to seaice_diffusion.F
1735      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1736        are now exclusive)
1737      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1738        required re-ordering the code a little:
1739       + make DAIRN global variable (defined in SEAICE)
1740       + move computation of the viscosities eta and zeta into a new separate
1741         routine (because I need to recompute them in seaice_ocean_stress.F)
1742    
1743    checkpoint58b_post
1744    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1745      update output.txt of exp. aim.5l_cs.thSI
1746    o various mnc cleanups and improvements:
1747      + shrink lookup tables by factor of ~4
1748      + better error reporting when running out of lookup space
1749      + able to handle longer path/file names (up to 500 chars)
1750    o adjoint:
1751      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1752      - TBD: "hidden" mom_vecinv recomp. in dynamics
1753    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1754     (allow to differentiate between forcing components using new integer flags:
1755      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1756     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1757    o ecco
1758      - enable trend removal from SSH anomaly obs.
1759    o adjoint
1760      - a fix for PmEpR when #undef EXACT_CONSERV
1761      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1762      - try to fix "hidden" recomp. in forward_step for NLFS
1763        (NLFS seems broken sometimes after I checked it in)
1764    o seaice:
1765     - add c-grid version of the dynamic solver:
1766       + three new routines that are the c-grid substitute lsr, dynsolver
1767         and ostres
1768       + put a few fields that were local to dynsolver into global common
1769         blocks, so that I can move the computation of stresses etc into
1770         seaice_lsr (saves coding but may break the adjoint).
1771     - replace more hardwired parameters by runtime parameters
1772     - add ice masks that mask the rhs of the implicit solvers where there
1773       is no ice (commented out in seaice_dynsolver, because i am not sure
1774       if this works properly), eventually this should replace the clipping
1775       of ice velocities in seaice_dynsolver to +/-40cm/s.
1776    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1777      include it only where its needed
1778    o move balancing of fluxes before the call of external_forcing_surf
1779    o seaice:
1780      - correct units of turning angles (now they are really in degrees)
1781      - move computation of GWATX/Y out of main routine into dynsolver
1782      - initialize GWATX/Y in seaice_init
1783    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1784      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1785    o seaice: add runtime flags for turning angles (default to zero)
1786    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1787      and trend from exf forcing and ctrl control adjustments
1788    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1789      (since checkpoint57x_post)
1790    o change the default rotation period to 86164.s = the Earth rotation
1791    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1792      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1793    o seaice advection: add code for choosing between the default (2nd order
1794      central differences) and multiDim advection schemes provided by
1795      pkg/generic_advdiff
1796    o seaice:
1797      - removed all references to SEAICE_GRID.h fields from
1798        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1799        (cubed-sphere configuration will change a little)
1800      - grid computations in seaice_init are obsolete now.
1801      - cleaned up code a little so that is easier to read (hopefully).
1802      - added new (better?) discretizations of default advection and diffusion
1803        (turn on with SEAICEuseFluxForm)
1804      - replace 1 in 3d global fields by kSurface in growth.F
1805      
1806    checkpoint58a_post
1807    o seaice:
1808      - bug fix in advect.F
1809    o shelfice:
1810      - separate shelfice load anomaly from pload (breaks with time
1811        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1812        Its default is 0., but it may be computed more cleverly from (unknown)
1813        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1814        done offline. A good approximation of the pressure load anomaly is
1815        necessary to avoid large initial adjustment processes underneath
1816        deep-reaching shelfice.
1817      - small fix in ISOMIP shelfice_thermodynamics
1818      - add more sophisticated thermodynamics of Hellmer (1989), this is
1819        now the default
1820      - give a few constants more intuitive names
1821    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1822      if bulk formulae are used in long integration (especially EmPmR). Turn
1823      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1824      if balancePrintMean, the imbalance that is substracted is printed to
1825      STDOUT.
1826    o fix bug (typo) in obcs_apply_eta.F
1827    o add a new package shelfice which enables us to model the circulation
1828      underneath shelf-ice with draughts of hundreds of meters.
1829     - works
1830     - to do: + include improved thermodynamics
1831              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1832                instead of new field kTopC
1833              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1834                instead of new field R_shelfIce and new code in ini_depth.F
1835                and ini_mask_etc.F?
1836              + adjust vertical mixing schemes?
1837    o seaice pkg:
1838     - add a cpp-flag to include a simple formula for a salinity dependent
1839       freezing point of sea water at the surface
1840     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1841       meridional stresses are now different (and hopefully correct)
1842    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1843       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1844       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1845    o pkg/diagnostics: add options and parameters for regional-statistics
1846       diagnostics ; define regions by reading a region-mask from a file
1847       (might add other options later)
1848    o pkg/bulk_force:
1849     - add option and parameters to use AIM surface-flux formulae.
1850     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1851       others forcing fields (defined in PARM05, parameter file "data") are loaded
1852       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1853     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1854     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1855     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1856       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1857     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1858    
1859    checkpoint58
1860    o add "--embed-source" option to genmake2 which, when the supporting
1861      tools can be compiled (as determined by genmake2) will turn on the
1862      embed_files package which then embeds the entire MITgcm source code
1863      (*.[fFhc] + Makefile) used for the build within the executable
1864      - requested by CNH but off by default
1865      - adds a paltry <9MB to the mitgcmuv executable in most cases
1866      - only writes the output when useEMBEDSRC in eedata is true
1867    o clean up 3-dim. relaxation codes:
1868      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1869      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1870      * Thanks to Tom Haine for testing!
1871    
1872    checkpoint57z_post
1873    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1874      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1875    o fix the pickup behavior for obcs in combination with ptracers
1876    o fix a bug in ptracers_external_fields_load
1877    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1878      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1879    o transfered surface NH pressure to eta field (if exactConserv).
1880    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1881         and update lab_sea output.txt file.
1882    o completing 3-dim. relaxation code: additional term
1883         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1884      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1885      * At compile time, in "EXF_OPTIONS.h" set
1886          #define  ALLOW_CLIMTEMP_RELAXATION
1887          #define  ALLOW_CLIMSALT_RELAXATION
1888      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1889          tauThetaClimRelax3Dim = 15552000.0,
1890          tauSaltClimRelax3Dim  = 15552000.0,
1891      * 3 cases:
1892          1) Use a constant-in-time 3-dim. field
1893          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1894          3) Real-time relax. to time-evolving prescribed field
1895    o Adding Laplacian-type smoothness constraint on
1896      initial and boundary (forcing) controls (ic, bc)
1897      * enable at compile-time via
1898        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1899      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1900      * Absolute scale somewhat unclear so far
1901      * no area weighting was included since no other cost term does so far
1902    
1903    checkpoint57y_post
1904    First step for a NLFS adjoint
1905    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1906    o new init. routines for calc_r_star, calc_surf_dr
1907    o still need to deal with ini_masks_etc
1908    o testreport seemed happy
1909    checkpoint57y_pre
1910    
1911    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1912    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1913    o add new offset feature to offline pkg (plus minor cleanup)
1914    o cfc fixes for final year of integration
1915    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1916      be in GCHEM_OPTIONS).
1917    
1918    checkpoint57x_post
1919    o fix testreport Pb in multiple test experiment.
1920    o cleanup our namelist syntax in verification:
1921      - make it more F95 standards compliant (some work still needed)
1922      - allows the vast majority of our tests to work with gfortran
1923    o Non-Hydrostatic:
1924     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1925     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1926    o Allow to apply AB on T,S rather than on AB(gT,gS):
1927     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1928     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1929       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1930     - need a "clever" read_pickup to restart from the other AB formulation
1931    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1932    o remove some unused variables (reduces number of compiler warnings)
1933    o adjoint
1934      * Disable useVariableViscosity for adjoint for time being
1935        (there are a number of extensive recomputations)
1936      * Initialize certain variables needed for adjoint
1937    
1938    checkpoint57w_post
1939    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1940                 fix the singleCpuIO RS version of MDSWRITEFIELD
1941       and add a WARNING if using globalFiles=T with multi-processors.
1942    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1943      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1944    o tracer advection scheme:
1945      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1946       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1947       was not very convenient).
1948      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1949       (further tests needed for the implicit DST & Flux-Limiter schemes).
1950    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1951      and sRef for convenience, handy, when you want to initialize
1952      ptracers in a large domain with a constant non-zero value. Also,
1953      untangle ptracers_init.F a little.
1954    
1955    checkpoint57v_post
1956    o change dome exp. to use variable viscosity in side-drag terms.
1957    o remove all the files from the cfc_offline test since they are now
1958      incorporated into tutorial_cfc_offline which has been producing
1959      identical results for a few days of testing
1960    o add new parameter: sideDragFactor to enable half-slip-side BC
1961      and change side-drag S/R to use viscosity from mom_calc_visc
1962      (can switch back by setting sideDragFactor=0.); affects results at
1963      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1964       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1965    o vorticity & strain are now computed without masking, to account for
1966      no-slip-side BC in variable viscosity calculation ; mask is applied
1967      anyway later on, before computing advection/coriolis terms.
1968    o modify exp4 to test new obcs support for reading from external files
1969      and for passive tracers
1970    o fix behavior of ptracers_monitor when monitor output is written to a
1971      netcdf-file; still not independent of monitor.F (writes in the same
1972      file).
1973    o change default value of tRef (put a uniform, meaningful value for ocean
1974      & atmos) and initialize sRef (was missing, as Martin mentioned).
1975    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1976      to be proportional to enstrophy dissipation length.  Thus,
1977       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1978      This is now consistent with Smagorinsky and with the manual.
1979    
1980    checkpoint57u_post
1981    o OBCS and PTRACERS: add open boundary support for passive tracers
1982      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1983        OB-values from file; this is not different from the way theta and salinity
1984        are treated
1985      - however, Orlanski-radiation conditions are not supported, and the model
1986        will stop if you use pTracers and Orlanski at the same time.
1987      - beefed up the rountine obcs_external_fields_load: now only those open
1988        boundary values are overwritten with values from files for which there
1989        are really files, otherwise the OB-fields remain untouched. This makes
1990        it possible to use different OBs at different ends of the domain (as
1991        with EXF)
1992    o reduce number of exch calls in shap_filt (s2).
1993    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1994      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1995    
1996    checkpoint57t_post
1997    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1998    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1999      same truncation, independent of the face number: affects affects several
2000      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2001    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2002      note that biharmonic viscosity + no-slip was not tested in any experiment.
2003    o fix bug in non-linear free-surf side-drag ; generate new output for
2004      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2005    o make mnc honor the writeBinaryPrec flag for most kinds of output
2006    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2007    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2008      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2009    o add brackets in multi-terms sum to get same truncation, independent of
2010      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2011      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2012    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2013      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2014      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2015      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2016      Suggested values of viscosity parameters found in mom_calc_visc.
2017      Many new viscosity diagnostics available.
2018    
2019    checkpoint57s_post
2020    o Add clearing-house for viscosity calculations, mom_calc_visc and
2021      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2022      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2023      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2024      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2025      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2026      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2027      ViscAhStrain and viscAhTension are now retired.
2028    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2029    o In response to JMC's bug report, genmake2 now ignores any soft-links
2030      that it finds in the *current* directory when searching for files.
2031      Soft-links found in any other source directories will still work as
2032      they did before.
2033    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2034      a C routine to unlimit the stack size
2035    o mnc-ify pkg/aim snapshot vars
2036    o mnc-ify pkg/land as requested by Daniel
2037    o various changes to mnc including:
2038      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2039      - output can now be grouped so that all files within a group
2040          change the ITER portion of their names in lock-step together
2041      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2042          and works with both EXCH1 and EXCH2 (but needs more testing)
2043      - writing works for all verification test cases w/ g77 on Linux
2044    
2045    checkpoint57r_post
2046    o make MNC variable initialization happen earlier
2047    o add diagnostics for (almost) each term of the momentum Eq.
2048    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2049    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2050    o remove MINIMAL_TAVE_OUTPUT option ;
2051      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2052    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2053      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2054    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2055    o add time-dependent SST, SSS control
2056    o cost terms in ecco/ modularized (new cost_generic.F)
2057    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2058    o new infrastructure for seaice model vs. obs misfits in seaice/
2059      * driver from the_main_loop.F is seaice_cost_driver.F
2060      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2061      * gradient check in Exp. 6a of natl_box_adjoint/
2062    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2063      (see README file)
2064    
2065    checkpoint57q_post
2066    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2067    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2068      - bug was reported by Jean-Michel and Ian Fenty
2069    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2070      update exp. cpl_aim+ocn output.
2071    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2072      Needed for high-res. runs with large global files
2073      to be able to limit tapelev size
2074    o Changed some tests for adjoint:
2075      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2076      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2077      * global_ocean.90x40x15/ back to default 3-level checkpointing
2078    o Modifications to enable scripted COMMON to MODULE conversion
2079      * verification/OpenAD/code/ has necessary scripts and description;
2080      * converts, compiles and runs successfully;
2081    
2082    checkpoint57p_post
2083    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2084    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2085      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2086    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2087    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2088      (was already the case for dissipation with mom_vecinv,
2089       and also the case for grad.PhiHyd when staggered-timeStep)
2090      This will allow to put dissipation out-off the AB time-stepping.
2091     Unfortunately, affects truncation error. Update output of exp. that "fails"
2092      (cg2d matching number) and leave the others for later: front_relax(10),
2093      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2094      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2095    
2096    checkpoint57o_post
2097    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2098      (2) its ready to be documented during the 20050801 DocFest
2099    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2100      for ideal_2D_oce and lab_sea on linux_ia32_g77
2101    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2102      in global1x1_tot/code_seaice_adj to access indices 32, 33
2103      (worth another tag)
2104    
2105    checkpoint57n_post
2106    o adding precip control xx_precip 32
2107    o adding swflux control xx_swflux 33
2108    o Replacing 10 forcing penalty cost routines by 1 generic.
2109    o Implementing partitioning in time-mean and variable adjustment
2110      for atmos. state.
2111    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2112    o in natl_box_adjoint:
2113      * updated exp 1 to 10
2114        (but does not have time-mean vs. variable split results yet)
2115    o updated global1x1/*_seaice_adj/
2116      to incorporate latest changes
2117    o enable useSingleCpuIO for mdsio vector routines
2118      (applies in particular to tapelev I/O)
2119    o removed inefficient K-loop in all active_file*control*.F
2120    
2121    checkpoint57m_post
2122    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2123      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2124    o pkg/exch2: filling of face-corner halo regions is optional
2125      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2126    
2127    checkpoint57l_post
2128     tag before updating tutorials (pre-release-2)
2129    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2130       for output and interpolation of input fields onto model grid)
2131    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2132       Affects results of exp. rotating_tank ; update output.txt.
2133    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2134          and taking the square quantity and/or using a fraction-weight field.
2135    o fix aim_diagnostics_init.F mate numbers.
2136    o add mnc output capability to diagnostics/diagstat and update
2137      our cvsignore files for the ACSII output generated
2138    
2139    checkpoint57k_post
2140    o lab_sea now uses diagnostics package and provides a suite of
2141      new EXF diagnostics output.
2142    
2143    checkpoint57j_post
2144    o exf
2145      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2146        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2147        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2148      * extended diagnostics output
2149        - now includes all EXF variables
2150        - hs, hl moved to common block
2151        - separate S/R for diagnostics, called after ctrl vector is added
2152        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2153        - EXFqnet contains true Qnet (i.e. includes qsw)
2154      * updated verif. lab_sea, global_with_exf
2155      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2156        to ensure that diagnostics sees a true EXFqnet
2157    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2158    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2159      several times with different frequencies.
2160    o mnc-ify the thsice package as requested by Daniel Enderton
2161      - the monitor--MNC output needs work
2162      - many attributes need to be added (most are currently blank)
2163    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2164      - many attributes need to be added (most are currently blank)
2165    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2166    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2167    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2168      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2169         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2170    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2171     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2172    
2173    checkpoint57i_post
2174    o Diagnostics package was changed: diagnostic allocation is now deactivated
2175      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2176    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2177      add 1rst Order upwind vertical Shear.
2178    o add a quick fix for A/B checkpointing in OFFLINE mode
2179    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2180      end-run around the C/Fortran linking horror in eesup/src/timers.F
2181    o added pkg/runclock: allows user to terminate run based on wall clock
2182    o added non-hydrostatic scaling parameter: nh_am2
2183    o pkg/my82: futile attempt to make results compiler-independent by adding
2184      some "_d 0", etc. no effect.
2185    o for mnc output, fill the 'T' coordinate var with myTime and create a
2186      separate 'iter' variable for iteration count
2187    o pkg/diagnostics:
2188      add new capability: output of Global/Regional & per-level statistics ;
2189      tested against monitor output (including land & thSIce) on various exp.
2190    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2191    
2192    checkpoint57h_done
2193      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2194      data.diagnostics, data.gchem, data.ptracers) is done.
2195    
2196    o pkg/diagnostics: prepare for Global/Regional statistics.
2197      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2198    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2199      and rename it: DIFFERENT_MULTIPLE
2200    
2201    checkpoint57h_post
2202    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2203    o pkg/diagnostics: change output frequency, now in seconds (instead
2204      of Nb of iterations). This requires to change data.diagnostics.
2205    checkpoint57h_pre
2206    
2207    o in mnc, let the user create the output dir if both mnc_outdir_date
2208      and mnc_outdir_num are false
2209    o add fflags() to pkg/diagnostics which allows one to specify, on a
2210      per-file basis, the file precision [default behavior is unchanged]
2211    o added diagnostics to pkg/kpp, including computation of mixed layer
2212      depth based on a temperature/density criterion
2213    o updated verification/natl_box to test the new pkg/kpp diagnostics
2214    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2215    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2216    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2217      not mnc -- this mistake was found by JMC and is now corrected
2218    
2219    checkpoint57g_post
2220    o add Adams-Bashforth 3rd Order time stepping:
2221      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2222      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2223    checkpoint57g_pre
2224    
2225    o make lambda[Theta,Salt]ClimRelax spatially varying
2226      (default remains spatially uniform constant based on tau)
2227    o added new control variables
2228      * init. uVel, vVel, etanN
2229      * lambda[Theta,Salt]ClimRelax
2230    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2231      (suggested by G. Forget)
2232    
2233    checkpoint57f_post
2234    o add parameter "baseTime" = model base time = time at iteration zero
2235      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2236      account for baseTime shift
2237    o move Coriolis arrays from PARAMS.h to GRID.h
2238    checkpoint57f_pre
2239    
2240    o mnc-ifying the seaice package
2241    o introduced an alternative length scale calculation for use in the limiting
2242      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2243    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2244    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2245      as well as grad(vort3).  Made it compatible with both approximate form
2246      for the cubed sphere and full form of these gradients.  Added flag
2247      useFullLeith to select between approximate and full form.  
2248    o add "d0" in getcon.F to reduce differences between compilers/platforms
2249      update output.txt of exp. fizhi-gridalt-hs
2250    o change port_rand funtion to allow to set the seed.
2251    o fix obscure MNC bug involving conversion between reals and integers
2252      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2253        new version is now more standards-compliant
2254    o adjoint-related modifications
2255      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2256      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2257      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2258    
2259    checkpoint57e_post
2260    o Adding eddy stress controls a la Ferreira et al.
2261    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2262    
2263    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2264      update output.txt of exp. fizhi-gridalt-hs
2265    o add more "Z" dimensions and associated coordinate vars to MNC
2266    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2267    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2268      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2269      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2270      months and years.  Requires pkg/cal.
2271    o diagnostics: add pickup functionality
2272      - off by default for backwards compatibility
2273      - current version only uses MDSIO -- MNC will be added
2274    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2275    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2276    
2277    checkpoint57d_post
2278    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2279    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2280      output from the diagnostics package
2281    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2282    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2283      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2284    o add coordinate variables to the MNC output from the diagnostics package
2285    o change MNC-flags default value: true when useMNC=TRUE
2286    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2287      the ability (off by default) to read the grid information using MNC
2288    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2289    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2290    o do snap-shot diagnostics at the middle of the time-interval (instead of
2291      at the end).
2292    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2293      new test for AIM with thSIce + slab-ocean
2294    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2295    o move state variable diagnostics to the beginning of the time step ;
2296      (note: still needs some work specially for snap-shot diagnostics)
2297      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2298    
2299    checkpoint57c_post
2300    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2301    o generate new output.txt files on faulks with g77 & the new -ieee option
2302    checkpoint57c_pre
2303    
2304    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2305      update output.txt of exp. global_ocean.90x40x15
2306    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2307      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2308    o add saltFlux(+File) forcing capability with periodicExternalForcing
2309    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2310    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2311    o improvements for the MNC output from DIAGNOSTICS:
2312      - correct handling of the unlimitied dimension
2313      - all dims now have associated coordinate variables
2314      - variables located at U, V, and Corner ("Z") points are now written
2315        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2316        *all* data points are output
2317    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2318    o added pkg/seaice/seaice_monitor.F
2319    o mdsio_readfield.F can now read files visible only to master MPI process.
2320    o pkg/seaice: some test code for ice-modified ocean stress
2321    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2322      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2323      spurious negative numbers for precipitation and humidity.  Will cause
2324      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2325    o pkg/ctrl/
2326      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2327        May be enabled via doPackDiag
2328      *  introduce z-scaling of
2329         + gradient (doZscalePack) and
2330         + control (doZscaleUnpack)
2331    o pkg/mdsio/
2332      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2333      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2334    
2335    checkpoint57b_post
2336    o simplify options in diagnostics_fill arguments (remove weird combinations)
2337    o fix MNC coordinate variables so that they now contain per-face index
2338      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2339      general, EXCH2 grids are only aligned to a "local" coordinate system
2340    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2341    o Implement instantaneous output within pkg diagnostics:
2342      setting a negative frequency in data.diagnostics produces
2343     "snap-shot" output (as opposed to time-average if freq > 0)
2344    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2345      NOTE: change ptracer diagnostics name: use 2 characters to work with
2346            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2347    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2348      becomes the coordinate variable for the 'T' dimension
2349    o add CF-style coordinate variables to MNC
2350      - just a first cut:  numbers are meaningless on the cubesphere and
2351        missing along the T axis but otherwise it works!
2352    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2353    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2354    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2355      this is based directly on what the model compute, so that the content of
2356      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2357    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2358    o clean up build options files for SunOS, in particular
2359      - remove -traditional from xmakedepend
2360      - change -xarch=v9 to -xarch=native for f77
2361      - restore use of make (not gmake)
2362      - add CC=gcc if using g77
2363    o changes per discussion of AM, JMC, & EH3 today:
2364      - move redundant "grid" variables out of "state" -- in preparation of
2365        creating proper CF-style coordinate variables and in recognition
2366        that any/all grid variables can be easily copied (eg. w/NCO) from
2367        the grid files into any of the other NetCDF files
2368      - *always* output grid variables with MDSIO (this will eventually be
2369        changed)
2370      - output MNC grid file if useMNC is true
2371    o every instance of _END_MASTER() has been found and replaced with
2372      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2373      preprocessors
2374    o re-arrange diagnostics pkg initialisation:
2375     - allow each package to extend the available diagnostics list
2376     - add some checking and fix small problems (multi-threaded, ...)
2377     - new S/R diagnostics_fill (replace fill_diagnostics):
2378       look through the short list of active diag. (instead of the long list)
2379       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2380    
2381    checkpoint57a_post
2382    o this set of changes restores TAMC compatibility
2383      tested for global_ocean.90x40x15 adjoint on trough
2384      (what a pain)
2385    
2386    checkpoint57a_pre
2387    o some modifs in tools/build_options for sunos
2388    o call ctrl_pack for ctrl at end for optimcycle=0
2389    
2390    checkpoint57
2391    o add horizontal bi-harmonic viscosity for vertical velocity
2392      - new parameter viscA4W (defaults to viscA4)
2393      - affects only non-hydrostatic code
2394      - to be done: no-slip lateral boundary conditions
2395    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2396    o implement Implicit Vertical advection for pTracers
2397    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2398      (implemented also for implicit vertical diffusion & advection)
2399    o OBCS: extend application of tracer open boundary conditions
2400      to a strip beyond the boundary of width Olx/Oly
2401    o add call monitor to TAF set of required calls (flow directives)
2402      and include in natl_box_adjoint
2403    o untangle a few ifdefs related to cost, ctrl, autodiff
2404      untangel a few ALLOW_ECCO_OPTIMIZATION
2405    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2406      (theta2, salt2 in ecco_cost_weights)
2407    
2408    checkpoint56c_post
2409    o OBCS as control variables
2410      - update ctrl_ad_diff.list, obcs_ad_diff.list
2411      - remove balance of obcs controls from default
2412      - fix index bug nobcs in ctrl_init
2413      - fix dummy fields filen in ctrl_pack
2414      - add dummy weights for obcs
2415    o lsopt: comment out fort.94 output
2416    o optim:
2417      - remove unnecessary header files
2418      - adjusted namelists
2419      - add xerbla.F to Makefile
2420    o exf:
2421      - multiple modifications of exf_check_range
2422      - unit change in exf_init_runoff from [m/year] to [m/s]
2423    o mdsio:
2424      - i/o-vector change debugLevel from debLevA to debLevB
2425    
2426    checkpoint56b_post
2427    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2428      is called from DO_THE_MODEL_IO
2429      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2430      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2431      - clean up PTRACERS_WRITE_TIMEAVE a little
2432    o add another verification experiment that tests both the cfc-pkg and
2433      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2434      reactive tendencies treated inline with regular timestepping
2435    o testreport previously did a lousy job of comparing small numbers, so
2436      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2437      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2438      testreport.
2439    o ptracers_monitor: bug fix for MPI
2440    
2441    checkpoint56a_post
2442    o GCHEM: finish reorganizating the package
2443      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2444        (introduces another 3D-array for each passive tracer, but only if
2445        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2446        gchemTendency is not needed because the timestep is done separately)
2447      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2448      - GCHEM is now---more or less cleanly---separate from PTRACERS
2449      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2450        so clear to me how that should be done in a general way.
2451    o CFC: improve formatting of output in CFC_ATMOS
2452    o PTRACERS:
2453      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2454        that ALL experiments with ptracers enable can be checked. This makes
2455        GCHEM_MONITOR obsolete.
2456      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2457        monitorFreq
2458      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2459    o add PTRACERS (PTR0[1-5]) to testreport output
2460    o exf_check_range:
2461      * default changed to .TRUE.
2462      * will check values for niter0 if debLevA, every timestep if debLevB
2463      * STOP in exf_check_range if 'out of range'
2464      * range chosen generous to allow for potential extema
2465      TBD: a version with stricter range
2466           permitted range would be runtime parameters
2467    o GMredi:
2468      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2469      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2470      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2471    o GCHEM:
2472      - move call to GCHEM_FORCING_SEP, so that it is now called before
2473        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2474      - introduced a useGCHEM runtime flag and applied it everywhere.
2475      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2476        this flag is now only visible within GCHEM-pkg routines.
2477      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2478        be replaced by a 3D array that is computed before thermodynamics; for
2479        this, the tracer ID iTracer had to be included into the parameter list
2480        of ptracers_forcing
2481      - set up forward_step to call gchem_forcing, that will replace
2482        gchem_forcing_int in ptracers_forcing
2483      - cleaning up
2484    o small cleaning of exch2: remove files that are also in eesupp/src
2485    
2486    checkpoint56
2487    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2488    o mnc: cleanup "full" files--fixes out-of-memory problem
2489    o ECCO-GODAE
2490      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2491      * fully merged and updated from SIO code
2492        windstress sign change affects
2493        - exf_inscal_[u/v]stress
2494        - sign of xx_tau[u/v] adjustments
2495        - signs in cost_scat
2496      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2497      * natl_box_adjoint updated and compressed
2498      * 2-level checkpoint switch added
2499        (tested in EXP. 1 of natl_box_adjoint)
2500      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2501    o SVD
2502      * first complete, non-hacked version for SVD calculations
2503      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2504        performed via direct access files admtlm_vector.it????
2505        (via ctrl_[un]pack)
2506      * optimcycle is used for ARPACK iteration counter
2507        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2508      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2509        and add linear transforms where necessary
2510      * controls are initial/final SST, SSS (can be extended; need to check
2511        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2512    o mdsio: filename info to both stderr, stdout
2513    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2514      from sign change
2515    
2516    checkpoint55j_post
2517    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2518      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2519    o add consistent build directories and .cvsignore files to verification
2520    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2521    o make all subroutines 30 or less characters in length for certain older
2522      compilers to work (a thorough search only turns up two routines in
2523      pkg/ptracers)
2524    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2525      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2526    
2527    checkpoint55i_post
2528    o change arrays for total vertical diffusivity (2.D if explicit,
2529      3.D if implicit) ; each ptracer uses its own background value.
2530    o added mnc/NetCDF output capability to ocn_compon_interf
2531      - added bits to verification/cpl_aim+ocn so that it can run on
2532        ITRDA and other clusters without the mpirun "-wd" option
2533    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2534      configuration
2535    o give MNC the ability to create additional files rather than
2536      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2537      - the default is just less than 2GB which is a practical limit
2538        on many systems
2539    o Compute the non-local term using either KPP vertical diffusivity (=default)
2540       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2541    
2542    checkpoint55h_post
2543    o add verification test "vermix"
2544    o remove all the *_ioinc flags and replace with the single global
2545      outputTypesInclusive flag
2546    o allow to set a vertical profile of vertical diffusivity for T & S
2547    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2548    o useMNC moved from data.mnc to data.pkg
2549    
2550    checkpoint55g_post
2551    o Renaming carbon AD experiments to comply with testreport conventions
2552    o Updating adjoint of Held-Suarez hs94.1x64x5
2553    o Fixing directives for non-ECCO forward_step, after ECCO directives
2554      have been fixed to avoid recomp. of do_oceanic_phys
2555      Works well for global_ocean.90x40x15,
2556      but recomp. issue remains for carbon
2557    o Updating adjoint output for natl_box_adjoint after
2558      pkg/ecco has been modified (see taga c55d_post)
2559    
2560    checkpoint55f_post
2561    o rename to timeave_init_fixed
2562    
2563    checkpoint55e_post
2564    o some delicate re-shuffle of store directives to avoid one
2565      extra call of do_oceanic_physics
2566      affects ecco_the_main_loop.F, do_oceanic_physics.F
2567      checkpoint_lev1_directives.h
2568    o NB: this may break global_ocean adjoint temporarily,
2569      but it is clear how to fix it. Will do later, need this now.
2570    
2571    checkpoint55d_post
2572    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2573    o ecco_cost_weights is modified to 1x1 runs
2574    o modifs to allow observations to be read in as
2575      single file or yearly files
2576    o enable to read exf forcing fields as either
2577      single file or yearly files (flag useExfYearlyFields)
2578    checkpoint55d_pre
2579    
2580    o switch between 2-level and 3-level checkpointing
2581    o add ability of MNC to write local and "partial" (eg. 2D slices where
2582      the full 3D field is never actually stored) arrays to NetCDF files
2583      with the correct (that is, the complete multi-dimensional) set of
2584      array indicies
2585      - used in mom_vecinv() to write the diagFreq output
2586      - tested (demonstrated) in verification/aim.5l_cs
2587    o further mnc-ification
2588      - add verification/lab_sea to the list with mnc setups
2589      - fix undefined mnc v-names in cd_code
2590      - add kpp to mnc output (both snapshot and timeave)
2591    o non-hydrostatic code
2592      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2593        in calc_gw.F
2594      - defaults to viscAh
2595      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2596        friction or Leith) in non-hydrostatic mode, as long as there is
2597        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2598    o pkg/cost
2599      extend simple cost functions to treat time mean quantities
2600      (T,U,V) via cost_accumulate_state from cost_tile
2601    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2602        be 2 times larger than the minimum size the advection scheme requires.
2603        now get a perfect conservation of salt in advect_cs test-exp (updated)
2604    o GGL90 (Gaspar's TKE mixed layer)
2605      - add horizontal diffusion of TKE, requires exchanges in
2606        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2607        default. In OPA there is no horizontal diffusion of TKE but the
2608        mixing coefficients are computed from a horizontal average of TKE of
2609        6 points or so. I think that diffusion has a little more physical
2610        justification.
2611      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2612        was in vain)
2613      - mask tke-variable in ggl90_init
2614    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2615    o fix biharmonic diffusion on CS-grid.
2616    o more obcs stuff
2617      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2618        for reading boundary values. This routine is called from
2619        obcs_prescribe_read
2620      - updated obcs_check
2621      - changed sponge layer relaxation parameter units for days to seconds
2622      - turned off sponge layer by default
2623      - changed argument list of OBCS_CALC to myTime+deltaTclock
2624      - fixed about 35 bugs in obcs_external_fields_load
2625    
2626    checkpoint55c_post
2627    o obcs stuff
2628      - new runtime flags useOBCSprescribe, useOBCSbalance
2629      - re-arranged obcs_calc
2630      - moved exf_getobcs to obcs_prescibe_read
2631        obcs_prescibe_read is called after ORLANSKI stuff
2632        and independent of it (executable can contain all).
2633      - updated obcs_check
2634      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2635        These may be necessary only if tangential velocities are
2636        prescribed at OB, not sure, needs testing.
2637    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2638      which simplifies the calls and passes the ifc check-bounds test
2639    
2640    checkpoint55b_post
2641    o add a 2D scalar, Z location, exchange_2 routine.
2642    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2643      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2644      affects advect_cs results (for the wrong reason): update output.txt
2645    o use a more standard discretization for biharmonic viscosity ;
2646     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2647      affects results of dome set-up: update output.txt
2648    o fix gad_advection.F (CubedSphere part), back to version 1.23
2649    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2650    
2651    checkpoint55a_post
2652    o merged code to
2653      * prescribe/read time-dependent open boundaries
2654        (works in conjunction with exf, cal)
2655      * sponge layer code for open boundaries
2656      * each boundary N/S/E/W now has its own CPP option
2657        (healthy for the adjoint)
2658    
2659    checkpoint55
2660    o up-to-date adjoint of previous breaks
2661      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2662      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2663      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2664      - carbon: * remove tr1-related adjoint verification
2665                * add ptracer as control variable
2666    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2667      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2668    
2669    checkpoint54f_post
2670    o in verification/carbin/ remove experiment related to
2671      ALLOW_PASSIVE_TRACER (array tr1 etc)
2672      code_ad/ input_ad/ results_ad
2673    
2674    o add two new packages
2675      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2676        + subject to optimization (memory)
2677      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2678        + subject to reordering (many GOTOs in the original code)
2679        + so far opps is called for every (i,j) point, and then operates in
2680          the vertical; one may want to reorder the scheme in order operate in
2681          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2682          fields)
2683    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2684      - all verification tests compile and run with linux_ia32_g77
2685      - defaults are compatible with current input files--nothing
2686        should change if you were not previously using MNC
2687      - MNC output has been added in numerous places (eg. timeave)
2688        but there are still a few writes not yet do-able with MNC
2689        (this is in progress)
2690      - flags now allow for either/or/both use of MDSIO and MNC and
2691        documentation will soon follow
2692      - numerous small formatting cleanups for ProTeX
2693    o add version info (via BUILD_INFO.h) to MNC and stdout
2694    
2695    checkpoint54e_post
2696    o add two new packages
2697      - pp81 (Packanowski and Philander, 1981), Richardson number and
2698        stratification dependent mixing
2699      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2700      - these scheme operate in a similar manner as KPP (without ghat, of
2701        course), however there is only one diffusivity that is used for both
2702        temperature and salinity (and passive tracers)
2703    o add offline package
2704    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2705      provided by Stephanie Dutkiewicz
2706    o genmake2: add ability to search for C compilers and cleanup test output
2707      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2708    
2709    checkpoint54d_post
2710    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2711    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2712      leading to additional shift by 5 days each year of integration
2713       (i.e. leading to considerable offset over the years)
2714    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2715    o start with no AB and no initial filtering (staggerTimeStep):
2716      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2717    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2718      (external loading & cpl import/export stay in forward_step.F)
2719    o update coupling interface to work with new staggerTimeStep
2720    o change MDSIO ptracers_pickup.
2721    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2722    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2723    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2724    
2725    checkpoint54c_post
2726    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2727      this affects (truncation error) output.txt of test-exp:
2728       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2729    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2730    o change Qnet to always be the net heat flux, (+upward).
2731      affects (truncation error) output of natl_box exp.: updated
2732    o define the max number of passive tracers in PTRACERS_SIZE.h
2733    o start to test mnc routinely in exp0
2734    o add sea-ice loading (sIceLoad) as a new forcing field.
2735    
2736    checkpoint54b_post
2737    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2738       impressive on Altix and Opteron systems)
2739    o diagnostics can now write NetCDF files through the mnc package
2740    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2741    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2742    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2743      affects (truncation error) output of lab_sea & natl_box exp.: updated
2744    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2745    
2746    checkpoint54a_post
2747    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2748    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2749    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2750    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2751      + internal_wave (shift in writing cg2d_ini_res)
2752    checkpoint54a_pre
2753    
2754    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2755      - modified verification/lab_sea and natl_box_adjoint accordingly
2756    
2757    checkpoint54
2758    checkpoint53g_post
2759    o prepare splitting of thermodynamics: store convect.counter in common block
2760    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2761      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2762    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2763    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2764    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2765    o restore adjointability
2766    
2767    checkpoint53f_post
2768    o modifications that affect AIM experiment results (update output.txt):
2769      - no advection of S at top interface Nr (pkg/generic_advdiff)
2770      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2771    o AIM pkg:
2772      - include stability function into surf.Flux derivative relative to Tsurf
2773      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2774    
2775    checkpoint53e_post
2776    o merged cylindrical coord configuration
2777    o added rotating_tank experiment
2778    checkpoint53e_pre
2779    
2780    checkpoint53d_post
2781    o faulks upgraded: re-generate output.txt that have changed:
2782       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2783    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2784    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2785    o added Sadourny discretization of Coriolis
2786      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2787      - re-enabled use of omega3 (useAbsVorticity)
2788    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2789      vector-invariant equations
2790      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2791    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2792      hopefully without new bugs
2793      - still to do: biharmonic friction for non-hydrostatic w
2794    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2795    o regenerated output for global_ocean_ebm (using -ieee)
2796    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2797      of mom_common/
2798      - simple re-arrangement of instructions within computing loop
2799    checkpoint53d_pre
2800    
2801    checkpoint53c_post
2802    o new version of coupler for AIM+thSIce and Ocean models
2803     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2804     - land: change Evaporation of snow
2805     - aim with thSIce: fix bug in snow-precip.
2806    o changes to calc_gw.F
2807     - bug fix for w^2 term near the bottom boundary
2808     - (hopefully) improve the lateral slip boundary condtions for use with
2809        partial/looped cells
2810      - because the bug fix changes two verification experiments anyway (exp5
2811        and plume on slope), change the lateral boundary condition from half slip
2812        to the value of no_slip_sides
2813    o ebm package wasnt quite up to the parallel task. Fixed that.
2814    o Adjoint of EBM package + verification
2815      * TLM OK
2816      * ADM not sufficient accuracy yet (needs further testing)
2817    
2818    checkpoint53b_post
2819    o Commiting new energy balance model to repository
2820      * package is pkg/ebm
2821      * verif. is verification/global_ocean_ebm
2822      * references are in ebm_driver.F
2823    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2824    C        Global thermohaline circulation. Part I:
2825    C        Sensitivity to atmospheric moisture transport.
2826    C        J. Climate 12(1), 71-82
2827    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2828    C        Global thermohaline circulation. Part II:
2829    C        Sensitivity with interactive transport.
2830    C        J. Climate 12(1), 83-91
2831    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2832    C        Destabilization of the thermohaline circulation
2833    C        by atmospheric eddy transports.
2834    C        J. Climate 7(12), 1870-1882
2835    o Will need long integration testing.
2836    checkpoint53b_pre
2837    
2838    o created pkg/mom_common in preparation for variable viscosity code
2839    o renamed and split ini_mnc_io
2840    o pkg/land: only liquid water can diffuse or run-off
2841    o AIM using land: soil wetness availability account for snow
2842    o added printMapIncludesZeros to EEPARMS namelist
2843    
2844    checkpoint53a_post
2845    o restore TAMC compatiility for exf_constants.h
2846      (no usage of _d in .h)
2847    o Additional storing in KPP in an attempt to fix
2848      TAMC problem with adjoint of KPP code.
2849      (no success...)
2850      Identical code works fine with TAF.
2851    o Fixed verification/natl_box_adjoint experiments.
2852      Initial conditions for Experiments 4 and 5 are now
2853      set to "SEAICE_initialHEFF=0", which is more reasonable,
2854      and hence gives results closer to that of Experiment 2.
2855      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2856    
2857    checkpoint53
2858    o stable checkpoint with up to date adjoint
2859      TLM tests only run for 1st grdchk at the moment. Its unclear if
2860      this is a code problem or a problem with resetting code for g_
2861      variables that is being autogenerated wrong.
2862      Otherwise:
2863       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2864       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2865         are both still in chaos following their security messes.
2866    
2867    checkpoint52n_post
2868    o various build (mostly genmake2) changes including:
2869      - ability to build/run more easily within Cygwin and MacOS X
2870      - more complicated Makefiles with a stronger dependence on Gnu Make
2871    o pkg/seaice modifications
2872      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2873        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2874        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2875      - changed proxy for geostrophic velocity and updated
2876        verification/lab_sea/results/* accordingly
2877      - removed ADI dynamic solver from pkg/seaice
2878      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2879        they caused a segmentation fault under certain circumstances
2880      - removed unused field WATR
2881    o bug fix in exf-package:
2882      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2883         now reflect that.
2884    o small fixes in the cal-package:
2885      - set reference date to first of January for the 'model'-calendar
2886      - failing of cal_CheckDate in cal_FullDate now actually results in a
2887        warning
2888    o small modifications in exf-package to increase flexibility:
2889      - change climtempfreeze from a constant to a runtime parameter that
2890        is specified in data.exf_clim (default = -1.9)
2891      - introduce runtime parameter windstressmax (default = 2.0) that is
2892        specified in data.exf
2893    o fix in pkg/thsice:
2894      - update Evap (Tsf changes) to be consistent with Latent heat flux
2895      - maintain snow precipitation unchanged (even if Tsf >=0).
2896     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2897    
2898    checkpoint52m_post
2899    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2900      this does not change any of the results, because myIter=0 in swfrac always
2901      lead to jwtype=2 (the default anyway), but the call makes little sense
2902      as a default
2903    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2904    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2905      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2906    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2907    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2908    o extending useSingleCpuIO option to work with new exch2 I/O format
2909      - old-style, missing-tile I/O is still accessible by defining CPP
2910        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2911    o monitor package can write to NetCDF files and/or STDOUT
2912    o fix re-definition bug in MNC_GRID_INIT_ALL()
2913    o doc/api_reference added
2914      - a framework for building an API Reference Manual using all
2915        the "protex" comments embedded in the code
2916      - see pkg/generic_advdiff, pkg/mnc for examples
2917    o MNC:
2918      - make myThid the last argument for all subroutines
2919      - new default for the grid files: NO halos
2920      - add useMNC and other run-time flags
2921      - separate per-file-group handling of the unlimited dimension
2922      - early initialization of MNC w/ flags read at the eeboot stage
2923        and lookup tables set in initialize_fixed
2924      - write all MNC output to a freshly-created directory
2925    o thermodynamics sea-ice (thsice) is now tested with testreport.
2926    o test exp. advect_cs: use the standard cs32 grid ; update output.
2927    o Added functionality to grdchk:
2928      pick global i,j,k position (or nearest wet) where to perform check.
2929    
2930    checkpoint52l_post
2931    o new land formulation:
2932      a) use ground enthalpy as prognostic variable to ensure exact
2933         energy conservation.
2934      b) account for water temperature and for latent heat of freezing
2935         in all processes (rain, run-off, ground storage)
2936      c) compute surface and ground temperature implicitly.
2937    o aim_v23 modification for new land model:
2938      a) Treat separately land / ocean / sea-ice surface fluxes
2939         to allow implicit computation of land & sea-ice surface temp.
2940      b) add snow precipitation.
2941    checkpoint52l_pre
2942    
2943    o fix problem (when 1 tile is empty) in min/max monitor.
2944    o fix bug in timeAve (u,vZetatave in common block)
2945    o no restoring terms under ice for pkg/seaice
2946    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2947    o bug fix for pkg/seaice pickups
2948    o change MNC call locations and add coordinate attributes
2949    o mask vorticity at the corner ; affects global_ocean.cs output
2950    o fix ini_curvilinear_grid ; test CS experiments with mpi
2951    o aim.5l_cs: modify sea-ice fraction input file ; update output
2952    o exf: Adding simple range check routine for exf fields after read
2953    
2954    checkpoint52k_post
2955    o removed top-level directory "diags"
2956      - we migrated these functions to pkg/timeave a long time ago
2957    o fixed bug introduced in pkg/monitor
2958    o accuracy ctrlprec = 32 insuffient for gradient checks using
2959      averaged fields (I/O via cost_averages)
2960      -> use ctrl.h in active_file*.F to control I/O precision.
2961    o paramter list of CALL ADTHE_MAIN_LOOP
2962    o added initial do_the_model_io to ecco
2963    o set all ...Freq to zero after cost_final
2964      taveFreq, dumpFreq, pChkptFreq
2965    o MAIN and ECCO differentiability restored
2966    
2967    checkpoint52j_post
2968    o fix nchklev in tamc.h for global_ocean...
2969    o Bringing flow and store directives up-to-date
2970    o Really weird thing!
2971      call do_the_model_io from the_main_loop with parameters
2972      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2973      TAF places a faulty re-call of initialise_varia
2974      after cost_final call which should not be there!
2975    checkpoint52j_pre
2976    
2977    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2978      error messages
2979    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2980    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2981      debug output
2982    o modfied mdsio_writefield.F to handle non-global files under exch2
2983    o update AIM Cubed-Sphere exp (aim.5l_cs):
2984      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2985    o update AIM Equatorial Channel exp:
2986      use standard aim_v23 pkg and change the SST fields to be more realistic.
2987    o globalFile now works with exch2
2988    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2989      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2990    o limit timeave output for hi-res integrations
2991    
2992    checkpoint52i_post
2993    o removed CPP_EEOPTIONS.h from verification/*/code
2994    o updated the tiling for global_ocean_pressure
2995    checkpoint52i_pre
2996    
2997    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2998      the old pkg/aim).
2999    
3000    checkpoint52h_pre
3001    o shortened offending lines in exch2_send_rx?.template
3002    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
3003    o genmake2: add build & execute test for NetCDF code
3004    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
3005      old grid files, moved CPP_EEMACROS.h to pkg/exch2
3006    o added useSingleCPUIO flag to monitor.F and mon_out.F
3007    o added temporary hack for sea-ice dynamics on the cube:
3008      metric terms are ignored and it is assumed that
3009      there is no sea-ice on cube faces 1, 2, 4, and 5.
3010    
3011    checkpoint52f_post
3012    o added exch2 cube routines to pkg/exch2
3013    o modified hs94.cs-32x32x5 to use it
3014    o added new grid files to hs94.cs-32x32x5
3015    checkpoint52f_pre
3016    
3017    checkpoint52e_post
3018    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
3019      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
3020    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
3021      to work with implicit vertical advection and AB ;
3022    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
3023    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
3024     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
3025    checkpoint52e_pre
3026    
3027    o fix bug in impldiff when Nr=1 or Nr=2.
3028    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
3029    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
3030    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
3031      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
3032    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
3033    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
3034    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
3035    
3036    checkpoint52d_post
3037    o re-tiled many expts to allow comparison in multi-processor mode
3038      - updated output accordingly
3039      - changed hs94.128x64x5 to use intial T from file rather than use the
3040        random number generator
3041    o add infrastructure in model routines for fizhi and gridalt packages
3042    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
3043    o changes to permit hi-res, cubed-sphere, configuration
3044      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
3045      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
3046      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
3047        of surface winds for the cube
3048      (A verification experiment, based on global_ocean.cs32x15, but with
3049       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
3050       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
3051       complete with example surface forcing files and matlab scripts to look
3052       at the output and compare it with that of global_ocean.cs32x15.)
3053    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
3054       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
3055       to conform to the common rule.
3056    o check-in the first version of the coupler + interfaces for multi-components
3057       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
3058       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
3059       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
3060       - ocean and atmos. share the same horizontal grid (no interpolation).
3061       - exchanges between component and coupler is done in forward_step
3062    o new verification experiment, cpl_aim+ocn:
3063       coupled ocean - AIM atmosphere on cs32 grid.
3064    
3065    checkpoint52d_pre
3066    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
3067    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
3068    
3069    checkpoint52c_post
3070    o Fixing OPTIONS files for use of exf:
3071      - ALLOW_ECCO not needed
3072      - ECCO_CPPOPTIONS.h should not be included from
3073        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
3074        as has been the case in the past
3075      - All cal/exf related options are currently set in
3076        single header file. Should remain so until we
3077        agree on a consistent new policy.
3078    o Removed all CPP options for cal package.
3079      cal has no more CPP options.
3080    o modified STOREs in GAD_ADVECTION
3081    o corrected key comp. for passkey
3082    
3083    checkpoint52b_post
3084    o new version: "thsice" of thermodynamic sea-ice pkg:
3085     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
3086     - modify fluxes but do not change theta directly;
3087     - light cleaning of bulk_force pkg (still needed with thsice).
3088     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
3089       + output_thsice.txt to test thsice & bulk_force pkgs.
3090    o put back grid & coriolis monitor output.
3091    checkpoint52b_pre
3092    
3093    o call "do_the_model_io" at the beginning (=> dump initial state)
3094    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
3095    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
3096      (need info on NUMBER_OF_PTRACERS)
3097    o missing PTRACERS headers in some routines
3098    o default tamc.h in pkg/autodiff supposed to crash
3099      to ensure proper customization
3100    
3101    checkpoint52a_post
3102    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
3103      - moved surfaceTendencyTice from pkg/seaice to main code
3104      - subroutine FREEZE_SURFACE now limits only surface temperature
3105        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
3106        => new output.txt for global_ocean.cs32x15 & global_with_exf
3107      - keep the old version of FREEZE for backward compatibility;
3108        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
3109      - corresponding modifs for TAF directives
3110    o added surface flux output variables to TIMEAVE_STATVARS
3111    o time-averaged output for pkg/ptracers
3112    o fix problem with ECCO-related divided adjoint
3113      snapshot file was missing some ad-variables,
3114      but no warning issued by TAF
3115    
3116    checkpoint52a_pre
3117    o some bug fixes for #undef REAL4_IS_SLOW
3118    
3119    checkpoint52 = ecco_c52_e35
3120    o after testing adjoints of checkpoint51u_post
3121    
3122    checkpoint51u_post
3123    o this is the post-merge tag of the ecco-branch
3124      (needs another clean checkout and re-testing)
3125    o various natl_box_adjoint configs and results
3126      but no input fields
3127    o obcs adjoint not yet merged!
3128    o adding ECCO global 1x1 and 2x2 degree configs
3129    o updated/extended some store directives for seaice
3130    o pkg/ecco now containes ecco-specific part of cost function
3131    o top level routines the_main_loop, forward_step
3132      supersede those in model/src/
3133      previous input data.cost now in data.ecco
3134      (new namelist ecco_cost_nml)
3135    o in ctrl/ cleaned some cross-dependencies and updated CPP options
3136    
3137    checkpoint51t_post
3138    o this is the pre-merge tag of the ecco-branch
3139    
3140    checkpoint51s_post
3141    o cleanup: removed various obsolete #define-s
3142    o pkg/grdchk
3143      - renamed 'ph-grd 3' to 'grad-res'
3144      - merged from ecco-branch
3145        (remaining bug fixes for obcs gradient checks)
3146      - additional high-precision output for testreport
3147        (grep for 'precision_grdchk_result')
3148    
3149    checkpoint51r_post
3150    o cleaned up or removed CPP_OPTIONS.h files
3151    o updated results for some of the tests to reflect the new
3152      optfiles (-ieee: -O0 instead of -O3)
3153    
3154    checkpoint51q_post
3155    o cd_code:
3156      - moved cd_scheme.F -> cd_code_scheme.F
3157      - separate read_checkpoint from cd_code_ini_vars.F
3158      - separated cd_code part from write_checkpoint
3159      - updated AD_SOURCE, generated .flow
3160      - added CD_CODE_VARS.h to the_main_loop
3161      - Moving cd_code specific store dir.s to pkg/cd_code
3162    o ctrl package totally restructured
3163      - pack/unpack now optional and decoupled from
3164        xx_/adxx_ I/O
3165      - ctrl_pack/unpack cleaned
3166        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
3167      - confined inclusion of AD_CONFIG.h to where necessary.
3168    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
3169    
3170    checkpoint51p_post
3171    o create initial cd_code package
3172      - WARNING: the initialization of fields within packages
3173        is broken because INI_FIELDS (where READ_CHECKPOINT is
3174        called) is called *before* PACKAGES_INIT_VARIABLES.
3175        This seems to be backwards since
3176        1) its important to initially zero the entire field including
3177           the "halo" region
3178        2) zeroing needs to be done *before* reading pickup info
3179           and the pickup call might or might not happen in any
3180           particular run
3181      - this needs an overhaul for R2
3182    o cleanup verification/*/code/GMREDI_OPTIONS.h
3183    o cleanup testreport
3184    
3185    checkpoint51o_post
3186    o bringing AD-related verif's up to date with genmake2
3187      - carbon/
3188      - global_ocean.90x40x15/
3189      - hs.94.1x64x5/
3190      - (front_relax/ )
3191    o (more) consistent directory structure for AD-related verif.'s
3192    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
3193    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
3194    o bug fix in find_alpha.F for MDJWF:
3195      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
3196        change rho -> rho-rhoConst
3197      - replace call find_rho to find_rhonum
3198    o initialisation of rFlx extended to full array (required by TAF)
3199      and shifted to thermodynamics
3200    o removed PTRACERS.h in ptracers routine
3201    o added surfacetendencyPtr to S/R parameter list pracers_forcing
3202    o Correcting initialisations for fVerU, fVerV.
3203    o helping TAF to recognize dependency on kUp for
3204      fVerU, fVerV
3205    o Replacing delZ by delR in pkg/ctrl/
3206    checkpoint51o_pre
3207    
3208    o undid all of cp51 pending some cleanups and discussion
3209    o added the [#include "AD_CONFIG.h"] statement to all files that need
3210       it for adjoint/tl #defines
3211     o re-worked the build logic in genmake2 to support AD_CONFIG.h
3212     o removed tools/genmake since it no longer works
3213    
3214    checkpoint51n_post
3215    o modifications to make FREEZE flux visible to pkg/kpp
3216      - moved surfaceTendencyTice from pkg/seaice to main code
3217      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
3218      - subroutine FREEZE now limits only surface temperature
3219        (this means new output.txt for global_ocean.90x40x15,
3220         global_ocean.cs32x15, and global_with_exf)
3221    o added surface flux output variables to TIMEAVE_STATVARS
3222    
3223    checkpoint51n_pre
3224    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
3225    o added [#include "AD_CONFIG.h"] to all files that use the following
3226      defines:
3227      - ALLOW_ADJOINT_RUN
3228      - ALLOW_TANGENTLINEAR_RUN
3229      - ALLOW_ECCO_OPTIMIZATION
3230    
3231    checkpoint51m_post
3232    o incorporating changes to get TAMC/TAF working in genmake2
3233      - added new TAMC/TAF targets to the Makefile
3234      - various cleanups related to package handling
3235      - these changes should have no impact on the forward model
3236    
3237    checkpoint51l_post
3238    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
3239     - faster algorithm for cal_addtime.F
3240     - higher precision arithmetic, where needed
3241     - pkg/exf *startdate variables changed from calendar date to
3242       model integration time
3243    
3244    checkpoint51l_pre
3245    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
3246    o enable to apply restoring on S & T only in a latitude band.
3247    o update output (external_forcing_surf modif. change truncation errors)
3248       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
3249    
3250    checkpoint51k_post
3251    o change default to: useNHMTerms=.FALSE.
3252     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
3253       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
3254     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
3255        exp1, ideal_2D_oce
3256     - change data file of oceanic exp (leave the results unchanged for now)
3257       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
3258    o set gravitySign automatically according to the vertical coordinate used
3259      (and change sign: back to "logical" value: +1 when R increases downward)
3260    o added an include barrier to the default CPP_OPTIONS.h and
3261      removed the #include "PACKAGES_CONFIG.h" from it
3262    o fix a bug in mom_fluxform (from chk51j_post)
3263    
3264    checkpoint51j_post
3265    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
3266    o adjusted some flow directives (dynamics, thermodynamics)
3267    o added cubed-sphere case to test cost function
3268    o heckpoint_lev?_directives.h now include
3269      pkg-specific directives, whenever those are enabled.
3270    o Moving pkg-specific flow directives to corresponding pkg
3271      Moving pkg-specific differentiation list to corresponding pkg
3272      Moving pkg-specific checkpoint-lev storing to corresponding pkg
3273      ---> conventions are
3274           - pkg_ad.flow
3275           - pkg_ad_diff.list
3276           - pkg_ad_check_lev?_dir.h
3277    
3278    checkpoint51i_post
3279    o merge of the branch-genmake2
3280      - knowingly breaks the older genmake
3281      - automatic generation of all ALLOW_${PKG_NAME} defines
3282      - new testreport supersedes older testscript
3283    o large number of package inclusion and header cleanups
3284    checkpoint51i_pre
3285    
3286    o new output for adjoin of global ocean vector invariant
3287    o fix for checkpoint of thermodynamic seaice and bulk_force
3288    o Steph gchem various cleanups
3289    
3290    checkpoint 51h_pre
3291    o fixed some single quotes
3292    o modify gchem pkg to be more versatile
3293    o modifications to clean up dic pkg
3294    o add pkg/cfc
3295    
3296    checkpoint51g_post
3297    o provide links for ARPACK and ADM*TLM
3298    o start removing verification/vero/
3299    o update AD-related stuff
3300      (in particular some IF-statements in model/src/ routines)
3301    o adding to verification/global_ocean.90x40x15/ adjoint of
3302      vector invariant setup
3303    
3304    checkpoint51f_post
3305    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
3306    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
3307      of tracer Green's fucntions for ocean inversion project.
3308    
3309    checkpoint51f_pre
3310    o Added on-the-fly spatial interpolation capability
3311        "USE_EXF_INTERPOLATION" to pkg/exf.
3312      - This is a temporary Cartesian-grid hack until
3313        the super-duper ESMF coupler becomes available.
3314      - See verification/global_with_exf/README for usage example.
3315      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
3316        flags and modified pkg/seaice accordingly.
3317    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
3318        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
3319        non-local transport term.
3320    
3321    checkpoint51e_post
3322    o pkg/mom_vecinv:
3323      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
3324      - add time-ave diagnostic of vorticity advection.
3325    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
3326    o atmospheric geopotential: - include water vapor effect;
3327                                - use p^kappa in p* scaling.
3328    o land pkg: read initial state from files.
3329    o AIM : add stratospheric drag in the upper level
3330    
3331    checkpoint51d_post
3332    o change function ILNBLNK (=> last non-blank char.) to return zero
3333      (instead of the string length) when the string. char is empty
3334    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
3335    o modif's to restore TAMC compatibility
3336      - avoid "_d" constructs in PARAMETER declarations
3337      - avoid interrupting lines by comment lines
3338    o Use cluster local disks for purely local I/O
3339      vs. globally visible disks needed for ctrl stuff
3340      (merged from ecco-branch)
3341      - new active_file_loc... and mdsio_..._loc routines
3342      - affected packages: autodiff, ctrl, grdchk, mdsio
3343    
3344    checkpoint51c_post
3345    o introducing integer flag debugLevel
3346      - debLevZero: suppress all output
3347      - debLevA: standard
3348      - debLevB: equivalent to current debugMode=.TRUE.
3349    o introducing pathname variable mdsioLocalDir for mdsio
3350      that can be specified at runtime
3351      (relevant for cluster I/O to local disk)
3352    `
3353    >>>checkpoint51b_post
3354    adjoint of ptracers
3355    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
3356    o extended state in checkpoint_lev?, etc.
3357    o alternative ctrl/cost with tr1 or ptracer
3358    o new comlev1_bibj_ptracers
3359    o new ptracers.flow
3360    o made ptracers_forcing same as external_forcing_s
3361    o added verification for adjoint with ptracers
3362      - adm. grdchk fail so far
3363      - tlm. grdchk OK
3364      - checked tapelev/comlev recomputations: OK
3365    <<<checkpoint51b_pre
3366    
3367    checkpoint51a_post
3368    o added code for biogeochemistry package
3369      - new pkgs: dic, gchem
3370      - new subroutine in ptracers
3371    o modify code for biogeo packages
3372      - in model/src and pkg/ptracers
3373    
3374    checkpoint51
3375    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
3376      - autodiff, ctrl, exf, grdchk, seaice
3377      kept separate packages
3378      - cost, ecco, obcs
3379    o updating verification/internal_wave, verification/lab_sea
3380      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
3381    
3382    checkpoint50i_post
3383    o Preparing next differentiable checkpoint and sync
3384      of MAIN vs. ecco-branch
3385      - 1st step: this one is differentiable
3386      - 2nd step: next(! not this) checkpoint will have updated packages
3387                  from ecco-branch)
3388    
3389    checkpoint50h_post
3390    o new package "land": provide surface BC for AIM.
3391    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
3392    o AIM: use true log-P extrapolation for near surface temp (= as in
3393        F.Molteni paper) ; update aim.5l_cs output.
3394    o New variable in PARM03 for more flexible pickups
3395    o somewhat cleaned package initialisation sequence for
3396      ctrl/ cost/ ecco/ in packages_... routines
3397    
3398    checkpoint50g_post
3399    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
3400      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
3401      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
3402        made the default because of faster convergence than ADI
3403    
3404    checkpoint50f_post
3405    o exf totally restructured
3406      - replaced all exf_set_ routines by one generic exf_set_gen.F
3407        and made sure it's still differentiable
3408      - split exf_getffields.F into new exf_bulkformulae.F
3409      - exf_inscal_/exf_outscal_ suffixes consistent with field names
3410      - updated adjoint/makefile and relevant verif. accordingly
3411    
3412    checkpoint50f_pre
3413     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
3414          + change Evap over land. (update aim.5l_cs output)
3415     o added missing .cvsignores and made uniform across expts
3416     o changed configuration of tidal_basin_2d expt
3417     o added pkg/debug functions for tracing code in fatal crashes
3418     o tidied pkg/monitor to use MONITOR_OPTIONS.h
3419     o new fn in pkg/monitor to stop model if solution grows too big
3420     o removed lots of single quotes from comments
3421    
3422    checkpoint50e_post
3423    o make KPP work with PTRACERS
3424     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
3425       nearly a copy of kpp_transport_s
3426     - there is no analogue to SurfaceTendencyS, so I have to use
3427       gPtr(of the surface layer) instead
3428    o add a new platform SunFire+mpi (SunFire 15000) to genmake
3429    checkpoint50e_pre
3430    
3431    checkpoint50d_post
3432    o change kpp output from multiple-record state files to single-record state
3433      files analogous to write_state.F
3434    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
3435      analogous to the cg2d-related output.
3436    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
3437      so that writing to internal file fn (with length 512) fails.
3438    checkpoint50d_pre
3439    
3440    checkpoint50c_post
3441    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
3442    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
3443    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
3444    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
3445    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
3446    
3447    checkpoint50c_pre
3448    Merging from release1_p13:
3449    o bug fix for pkg/seaice dynamic solver
3450    o Added SEAICE_initialHEFF to pkg/seaice
3451    
3452    checkpoint50b_post
3453    o store u*,v* in gU,V instead of in guNm1,gvNm1
3454    o in order to put the momForcing out of the Adams-Bashforth:
3455      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
3456      to timestep.F
3457    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
3458    o re-generate output for highly sensitive test-exp:
3459       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
3460    
3461    checkpoint50b_pre
3462    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
3463    o corrected CPP option mismatch in exf_Bulk... functions for case
3464      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
3465    
3466    checkpoint50a_post
3467    o Bug fix for merging between c50 and KPP.
3468      ikey was passed from thermodynamics to kpp_calc via
3469      common block rather than being recomputed in kpp_calc,
3470      in contradiction with new key itdkey.
3471      New key ikppkey created, and tamc.h headers updated.
3472    
3473    checkpoint50
3474    - 2nd step of merge with ecco-branch:
3475      merge changes in ecco-branch back into main trunk
3476    - bug fix in find_alpha
3477    - more storing in gmredi_calc_tensor.F, kpp_routines.F
3478    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
3479    - merged some sliced AD support routines
3480    
3481    checkpoint49
3482    merged from ecco-branch:
3483    o exf:
3484      - Enable initialisation of forcing fields to constant
3485        (runtime) values.
3486      - in exf_getffields.F
3487        Reduce i-/j-loop to interior domain, discarding overlaps.
3488        That also fixes wrong TAF-key computations for key_1, key_2
3489        with bulf formulae.
3490      - exf_init.F modify #ifdef for exf_init_evap
3491      - exf_getffieldrec.F, ctrl_getrec.F
3492        The following INT-usages are not safe:
3493          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3494          fldcount = int(fldsecs/fldperiod) + 1
3495        and were modified.
3496    o autodiff: checkpoint_lev...
3497      - updated storing for bulk formulae (some arrays were missing)
3498      - added state for seaice package
3499      - synchronized with main branch
3500    o DIVA:
3501      Modif.s in
3502      - the_main_loop.F
3503      - the_model_main.F
3504      and added cost_final_restore.F cost_final_store.F
3505      o With these changes, it is possible to fully separate
3506        the first forward run to compute the cost function (mdthe_main_loop)
3507        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3508        into separate model executions.
3509        This enables better tuning of DIVA to given queue sizes.
3510      o Loss of cost function value in consecutive DIVA runs is
3511        fixed by storing to 'costfinal' file.
3512      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3513        beginning/end of adjoint integration is accounted for.
3514      The current changes apply to TAF-1.4.26.
3515      TAF has one remaining bug, requiring one manual change
3516      (see MITgcm manual).
3517    o cal: synchronized between MAIN and ecco-branch
3518    
3519    checkpoint48i_post
3520    o Changes to restore differentiability of code w.r.t. previous tag
3521      (mostly adding new routines to make list and replacing
3522      pressure by totPhiHyd).
3523    o Updated and merged grdchk package
3524      - has both ADM and TLM checks
3525      - works for single- and multi-proc.
3526      - output cleaned
3527      - worked successfully for parallel DIVA
3528    o genmake:
3529      - Adding -platform=SP4
3530      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3531    o Modif. for DIVA:
3532      ctrl_unpack should not be called in intermediate DIVA interval.
3533      (similar thing would apply for active files such as
3534      tbar, sbar, psbar, which should not be reinitialised;
3535      only relevant for ecco-branch)
3536    
3537    checkpoint48h_post
3538    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3539    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3540    o Added SEAICE_initialHEFF to pkg/seaice
3541    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3542    
3543    checkpoint48g_post
3544    --- EOS:
3545    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3546      store total Potential in totPhyHyd for diagnostics & EOS.
3547    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3548    --- Pressure/geopotential gradient:
3549    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3550    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3551      ( changes results of global_ocean_pressure )
3552    o NLFS + z-coord.: add eta*Rho' contribution.
3553    o accurate phiHyd when using interface-W at the middle between 2 centers
3554     ( changes results of ideal_2D_oce )
3555    o includes r* 2nd term in potential gradient.
3556    
3557    checkpoint48f_post
3558    Merging from release1_p12:
3559    o Modifications for using pkg/exf with pkg/seaice
3560      - improved description of the various forcing configurations
3561      - added basic radiation bulk formulae to pkg/exf
3562      - units/sign fix for evap computation in exf_getffields.F
3563      - updated verification/global_with_exf/results/output.txt
3564    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3565      (SBO) core products, including oceanic mass, center-of-mass,
3566      angular, and bottom pressure (see pkg/sbo/README.sbo).
3567    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3568      to avoid negative values in shallow regions.
3569      - updated verification/natl_box/results/output.txt
3570      - updated verification/lab_sea/results/output.txt
3571    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3572    o Added useSingleCpuIO option (see PARAMS.h).
3573    o Updated useSingleCpuIO option in mdsio_writefield.F to
3574      work with multi-field files, e.g., for single-file pickup.
3575    o pkg/seaice:
3576      - bug fix in growth.F: QNET for no shortwave case
3577      - added HeffFile for specifying initial sea-ice thickness
3578      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3579    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3580      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3581    o pkg/seaice:
3582      - adjoint-friendly modifications
3583      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3584    
3585    checkpoint48e_post
3586    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3587    o dynamics: change definition of computational domain & adapt mom_fluxform
3588      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3589    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3590        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3591        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3592        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3593        inverted_barometer solid-body.cs-32x32x1
3594      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3595    
3596    checkpoint48d_post
3597    o in preparation for r*:
3598     a) use pre-computed gradient of hydrostatic potential:
3599        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3600     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3601        => affects results of glob_oce_pressure (different truncation error)  
3602      update output.txt of ideal_2D_oce & global_ocean_pressure
3603    
3604    checkpoint48d_pre
3605    o in preparation for r*:
3606      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3607      pass the 2 comp. of the grad. as arguments to momentum S/R.
3608      but for the moment, only used if it does not change the results.
3609    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3610    
3611    checkpoint48c_post
3612    Modifications in treatment of initial flux forcing controls
3613    to avoid extra storing of flux fields.
3614    
3615    checkpoint48c_pre
3616    o Added tidal_basin_2d experiment (currently 1D!)
3617    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3618    
3619    checkpoint48b_post
3620    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3621     (modification to pressure gradient not yet implemented)
3622    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3623      (for U & V) that are used for vertical advection of momentum.
3624    
3625    checkpoint48a_post
3626    o In preparation for r*, use temp. array to compute vertical transport
3627       in flux-form momentum pkg. => change results of few test-exp.
3628      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3629                        lab_sea, natl_box & plume_on_slope
3630    
3631    checkpoint48
3632    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3633    
3634    checkpoint47j_post
3635    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3636    o moved adexch from forward_step to addummy_in_stepping
3637    o added exch in ctrl_map_...
3638    o aveFreq.=0. at end of cost_final to avoid overwrite in
3639      reverse checkpointing loop
3640    o Yet more changes in gmredi:
3641      * adgmredi_calc_tensor
3642        avoiding all recomputation of gmredi_slope_limit
3643      * adgmredi_x/y/rtransport
3644        added flag for excessive storing to avoid recomp. of
3645        u/v/rtans, dTdx/y/z
3646        -> this is not really necessary and very memory-consuming
3647      * adgmredi_slope_psi:
3648        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3649      * gmredi_slope_limit
3650        re-activated full calculation of taperfct for case 'ac02'
3651    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3652    
3653    checkpoint47i_post
3654    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3655    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3656      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3657    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3658    o gmredi: fix few bugs.
3659    
3660    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3661    This will be a good checkpoint to plug into the ecco-branch.
3662    o few modif.'s to get latest version adjointed
3663      (mainly kick out code in ini_linear_phisurf)
3664    o modif's to run adjoint with exactConserv
3665    o case GM_BOLUS_ADVEC should be cleaned
3666      S/R gmredi_slope_psi should be cleaned
3667    o verification/carbon now has exactConserv=.TRUE.
3668    
3669    checkpoint47g_post
3670    o time-average AIM output: becomes independent from statvars time-average
3671      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3672    o After TAF bug fix:
3673      Tested adjoint of gmredi package.
3674      Tests were done with checkpoint47 rather than with latest
3675      checkpoint47f_post since the latter is broken for the adjoint
3676      verification/carbon/ contains both ADM and TLM gradient checks.
3677    Here they are, before they get changed/lost/stolen.
3678    Mostly modif.'s to fix numerical sensitivities.
3679    Gradient checks OK for
3680    - GM_taper_scheme:
3681      * clipping
3682      * ac02
3683      * linear
3684      * glw91
3685      * dm95
3686      * ldd97
3687    - GMREDI_OPTIONS:
3688      * GM_VISBECK_VARIABLE_K
3689      * GM_NON_UNITY_DIAGONAL
3690      * GM_EXTRA_DIAGONAL
3691      * GM_BOLUS_ADVEC
3692    in conjunction with data.gmredi parameters to be checked in
3693    in a few minutes under verification/carbon/code/
3694    
3695    checkpoint47f_post
3696    Merging from release1_p10:
3697    o modifications for using pkg/exf with pkg/seaice
3698      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3699        and SEAICE_EXTERNAL_FLUXES
3700      - pkg/exf CPP options EXF_READ_EVAP and
3701        EXF_NO_BULK_COMPUTATIONS
3702      - usage examples are Experiments 8 and 9 in
3703        verification/lab_sea/README
3704      - verification/lab_sea default experiment now uses
3705        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3706    
3707    checkpoint47e_post
3708    o created a tag prior to creating a branch
3709    
3710    checkpoint47d_post
3711    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3712      at the bottom boundary had an erroneous half slip boundary condition
3713    o added bottom drag and no slip boundary condition capabilities to
3714      oceanic pressure coordinates code
3715    o added new verification experiment global_ocean_pressure, this experiment is
3716      also described in the tutorial section of the manual
3717    checkpoint47d_pre
3718    
3719    checkpoint47c_post
3720    o Added a verification experiment for a global cubed-sphere ocean run
3721      -  verification/global_ocean.cubed32x32x30
3722      -  uses pkg/therm_seaice and pkg/bulk_forcing
3723    
3724    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3725    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3726      when using P-coordinate; only implemented for atmospheric config.
3727    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3728      NOTES: requires option NONLIN_FRSURF to be "#define".
3729    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3730    
3731    checkpoint47b_post
3732    Merging from release1_p9:
3733    o pkg/seaice
3734      - removed GOTO's and added taf directives
3735      - double precision constants to reduce the g77 (Linux)
3736        to F77 (SGI) differences reported in release1_p8
3737    o tools/genmake
3738      - added SGI options
3739    o verification/testscript
3740      - updated to that of checkpoint47a_post
3741    o verification/global_ocean.90x40x15/input/eedata
3742      - modified for SGI f77 compatibility
3743    o verification/lab_sea
3744      - added description of sea-ice model
3745      - added missing matlab routines
3746      - added test of thermodynamics parallelization
3747    
3748    checkpoint47a_post
3749    o new pkg: aim_v23
3750     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3751       for now, keep the same surface forcing as before.
3752     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3753     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3754     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3755    o add diagnostic of surface correction term in monitor output
3756    
3757    o bulk_force and therm_seaice
3758    - Two packages:  bulk_force (Bulk forcing)
3759      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3760    - Earlier integration from Stephaine Dutkiewicz
3761      and Patrick Heimbach.
3762    - Two ifdef statements for compile time,
3763       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3764    
3765    checkpoint47
3766    differentiable version of checkpoint46n_post
3767    o bug fix in quasihydrostaticterms
3768    o * "clean" adjoint code (in terms of extensive recomputations)
3769        can now be obtained for all GMREDI options (i.e. for
3770        - GM_VISBECK_VARIABLE_K
3771        - GM_NON_UNITY_DIAGONAL
3772        - GM_EXTRA_DIAGONAL
3773        - GM_BOLUS_ADVEC )
3774      * However, wrong gradient check problem remains unsolved.
3775      * New CPP options have been introduced for different
3776        tapering schemes
3777    o external_fields_load now part of differentiation list
3778    o pressure needs multiple storing;
3779      would be nice to have store_pressure at beginning or
3780      end of forward_step, e.g. by having phiHyd global (5-dim.)
3781      (NB: pressure is needed for certain cases in find_rho,
3782      which is also invoked through convective_adjustment).
3783    o recomputations in find_rho for cases
3784     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3785    o #define ATMOSPHERIC_LOADING should be differentiable
3786    o ini_forcing shifted to begining of initialise_varia
3787    o Incorporating QNVS line search routines into MITgcm
3788      (this is separate code, and therefore not under pkg)
3789      lsopt/, optim/
3790    o Updated verification/carbon/
3791      - #define GM_VISBECK_VARIABLE_K
3792      - GM_taper_scheme    = 'ldd97'    
3793    
3794    checkpoint46n_post
3795    Merging from release1_p8:
3796    o verification/natl_box:
3797      updating new external_fields_load routine
3798    o New package: pkg/seaice
3799      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3800      The sea-ice code is based on Hibler (1979-1980).
3801      Two sea-ice dynamic solvers, ADI and LSR, are included.
3802      In addition to computing prognostic sea-ice variables and diagnosing
3803      the forcing/external data fields that drive the ocean model,
3804      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3805      The implied surface heat flux is then stored in variable
3806      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3807      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3808      non-local transport term.  Because this call precedes model
3809      thermodynamics, temperature under sea-ice may not be "exactly" at
3810      the freezing point by the time theta is dumped or time-averaged.
3811      N.B.: fairly large differences in accuracy occur across
3812            different platforms/compilers; comparison between
3813            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3814            generated output gives:
3815       T           S           U           V
3816      C D M    c        m  s        m  s        m  s        m  s
3817      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3818      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3819      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3820    
3821      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3822    o GAD:
3823      - generated new common blocks to account for call of
3824        same gad routines with differing traceridentities
3825        (needed to modify tracerIdentity indices in GAD.h)
3826      - generated separate common blocks for case useCubedSphereExchange
3827        (Department of Futurology)
3828      - parameter lists to gmredi_?transport: added tracerIdentity
3829      - added new key indices to tamc.h
3830    o external_fields_load:
3831      - added this routine to TAF list
3832      - needed to make some common blocks global and additional storing
3833        along the same lines as exf package (checkpoint_lev?_directives.h)
3834    o exf:
3835      updated external forcing package
3836      - bug fixes carried over from ecco-branch
3837        (missing OBCS_OPTIONS.h in two routines)
3838      - enable easy to use "no forcing".
3839      - added exf I/O for atmospheric loading
3840      - added exf I/O for runoff data
3841      - transfered scaling between exf <-> MITgcm to exf namelist
3842    o Adding new verification experiment global_with_exf.
3843      This verification experiment is almost identical to the
3844      global_ocean.90x40x15 experiment, except that it uses
3845      the exf (and cal) package instead of the
3846      external_fields_load routine (cf README file).
3847    
3848    checkpoint46m_post
3849    o modified testscript to return -- when there are no lines of "%MON" output
3850    o added new flag "quasiHydrostatic" for QH mode
3851      and new routine quasihydrostaticterms()
3852    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3853      New routine: mom_u_coriolis_nh()
3854    o fixed sign of non-hydrostatic metric terms in u and v equations.
3855      Depend on correct sign of gravitySign.
3856    o added work.pc* to .cvsignore in aim directories using ifc
3857    o introduced flag for controllin non-hydrostatic metric terms
3858    o removed gravitySign from PARM04
3859    o switched to g77/ifc from pgf77 in aim experiments
3860    
3861    checkpoint46l_post
3862    o made convective adjustment work with pressure coordinates:
3863     - changed the direction of k-loop in convective_adjustment.F for the
3864       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3865     - adjusted the reference pressure k-index in convective_adjustment.F
3866     - adjusted the convection condition in convect.F (in analogy to
3867       calc_ivdc.F)
3868     - convective_adjustment no longer computes anything on the halos
3869     - removed the warnings about negative salinity from find_rho.F and
3870       find_alpha.F; instead the new routine look_for_neg_salinity, called
3871       at the beginning of find_rho, find_alpha, and find_beta, does a
3872       check of the entire slice, if CPP-option
3873       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3874    checkpoint46l_pre
3875    
3876    checkpoint46k_post
3877    o fixed the verification/global_ocean.90x40x15 experiment:
3878     - new bathymetry (the world according to A., JMC, and M.)
3879     - new initial fields and forcing fields (*.bin files)
3880     - new POLY3.COEFFS (for the next release one should switch to a full
3881       equation of state: JMD95P or MDJWF)
3882     - fixed several errors and redundancies in the data file
3883     - experiment uses looped cells
3884     - added matlab directory with diagnostic scripts for plotting of output
3885    
3886    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3887     - read AIM physics parameters from a file (data.aimphys)
3888     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3889    
3890    checkpoint46j_post
3891    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3892    o move wVel computation at the end of the time step, in S/R integr_continuity
3893    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3894    o update timeave pkg for wVel diagnostic.
3895    checkpoint46j_pre
3896    
3897    checkpoint46i_post
3898    o Clean up AIM package (and keep the results unchanged):
3899      include CPP_OPTION and use IMPLICT NONE in all routines ;
3900      declare all the variables _RL ; use _d 0 for all numerical constants.
3901      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3902    
3903    checkpoint46h_post
3904    o cleaned up the use of rhoNil and rhoConst.
3905      - rhoNil should only appear in the LINEAR equation of state, everywhere
3906        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3907        and the dynamical equations are all divided by rhoConst
3908    o introduced new parameter rhoConstFresh, a reference density of fresh
3909      water, to remove the fresh water flux's dependence on rhoNil. The default
3910      value is 999.8 kg/m^3
3911    o cleanup up external_forcing.F and external_forcing_surf.F
3912      - can now be used by both OCEANIC and OCEANICP
3913    checkpoint46h_pre
3914    
3915     Added code to convert surface volume flux (fresh water) into
3916     a mass flux when using P coordinates in the ocean (OCEANICP).
3917     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3918    
3919    checkpoint46g_post
3920    o Include a new diagnostic variable phiHydLow for the ocean model
3921      - in z-coordinates, it is the bottom pressure anomaly
3922      - in p-coordinates, it is the sea surface elevation
3923      - in both cases, these variable have global drift, reflecting the mass
3924        drift in z-coordinates and the volume drift in p-coordinates
3925      - included time averaging for phiHydLow, be aware of the drift!
3926    o depth-dependent computation of Bo_surf for pressure coordinates
3927      in the ocean (buoyancyRelation='OCEANICP')
3928      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3929        Theta, Salinity, and Pressure in the parameter list. This routine is
3930        presently contained in find_rho.F. This routine does not give the
3931        correct density for 'POLY3', which would be a z-dependent reference
3932        density.
3933    o cleaned up find_rho
3934      - removed obsolete 'eqn' from the parameter list.
3935    o added two new verification experiments: gop and goz
3936      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3937    checkpoint46g_pre
3938    
3939    checkpoint46f_post
3940    o Enable tangent linear (forward mode) gradient checks:
3941      - extended active file handling to g_... files
3942      - added TANGENT_SIMULATION to theSimulationMode
3943      - extended grdchk package accordingly
3944    o added tangent linear setup in verification/carbon/code_ftl
3945    o added adjoint setup in verification/front_relax/code_ad
3946    
3947    checkpoint46e_post
3948    o Added new equation of state -> MDJWF
3949      - EOS of McDougall et al., 2002, JAOT, submitted
3950      - caveat: the equation of state is only valid for a smaller (more
3951        realistic?) range of values than JMD95P/Z and UNESCO
3952      - added masks to the calculation of pressure in store_pressure
3953      - added more check values for density in check_eos (ini_eos.F), some of
3954        the old check values are out of the range of the MDJWF-eos, so don't
3955        expect perfect matches for those
3956    checkpoint46e_pre
3957    
3958    checkpoint46d_post
3959    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3960      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3961      case of pressure coordinates. eosType='JMD95Z' in
3962      combination with buoyancyRelation='OCEANICP' now causes an error.
3963    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3964      in find_alpha/beta.
3965    checkpoint46d_pre
3966    
3967    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3968      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3969    
3970    checkpoint46c_post
3971    o Changes necessary for ocean in p-coordinates
3972     -  Added new buoyancy relation = 'OCEANICP'
3973     -  Added new parameters = gravitySign (this used to be contained inside
3974        the factor dRdZ which I added when we first switched to R coordinates).
3975     X GM/Redi is not compatible (yet)
3976     X bottom drag and no-slip need to be debugged.
3977    checkpoint46c_pre
3978    
3979    checkpoint46b_post
3980    o Added new equation of state -> JMD95Z and JMD95P
3981      - EOS of Jackett and McDougall, 1995, JAOT
3982      - moved all EOS parameters into EOS.h
3983      - new routines ini_eos.F, store_pressure.F
3984    o Added UNESCO EOS, but not recommended because it requires
3985      in-situ temperature (see JMD95)
3986    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3987      unesco.f to be used with POLY3
3988    checkpoint46b_pre
3989    
3990    checkpoint46a_post
3991    o Added (atmospheric) pressure loading
3992      - new field in FFIELDS.h, etc...
3993      - new cpp flag ATMOSPHERIC_LOADING
3994    o Changed hFacC to _hFacC in calc_phi_hyd.F
3995    o Added SHORTWAVE_HEATING to some files for consistency
3996    checkpoint46a_pre
3997    
3998    checkpoint46
3999    further merges from release1_p5
4000    o new ctrl package
4001      - adopted from ECCO environment to enable optimization
4002      - added Eliassen Palm fluxes to controls
4003    o added Eliassen Palm flux controls to gradient check package
4004    o cost package
4005      - Compatible with new ctrl package
4006      - added Eliassen Palm cost hooks
4007      - modif's of existing cost functions
4008    o Adjoint-related bug fixes in kpp:
4009      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
4010      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
4011    o autodiff package
4012      - flow directives:
4013        + new for S/R do_the_model_io
4014        + enhanced for S/R checkpoint
4015        + new gmredi.flow
4016      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
4017        disable adcommon.h/g_common.h by default.
4018      - fixed problem for adjoint of global_max
4019    o modified verification/carbon/
4020    o New setup for adjoint of global_ocean
4021    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
4022    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
4023    o incorporated hooks for sponge layer code (external_forcing.F)
4024    
4025    checkpoint45d_post
4026    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
4027    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
4028      (affects plume_on_slope "cg2d" output)
4029    o add new parameter deltaTfreesurf for free-surface time stepping
4030    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
4031    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
4032    o change phiMin in exp1 (to agree with documentation)
4033    o add new flags:
4034     - T,S forcing inside/outside Adams-Bashforth
4035     - turn off temp,salt advection and/or forcing
4036     - for each tracer, define internal flag for multiDimAdvection & A-B
4037    o monitor: change definition of KE to check conservation of Energy
4038    
4039    checkpoint45c_post
4040    o Removed f90 comments ("!")
4041    o Modified initialisations to enable exf package for MITgcm
4042      (without invoking ECCO_PACKAGE).
4043    o modifications to gradient check package (Martin Losch)
4044      - enable centered differences
4045      - modified format of standard output
4046    
4047    checkpoint45b_post
4048    o cleaned exchange calls in cg2d
4049    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
4050    o included CPP option SINGLE_LAYER_MODE in thermodynamics
4051      to configure barotropic setup (Martin Losch)
4052    o moved some initialisations within bi,bj loop in dynamics
4053      (TAF flow dependency)
4054    o in initialise_varia, moved call packages_init_variables
4055      before convective_adjustment_init
4056      (corresponding adjustment of TAF tape initialisation).
4057    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
4058    
4059    checkpoint45a_post
4060    o compute Rho over the whole domain (extend iMin,jMin indices)
4061    o specific exchange for X-slice domain (case Ny=1)
4062    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
4063    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
4064    
4065    checkpoint44h_post = checkpoint45
4066    o Fix to restore differentiability:
4067      place at which packages_init_variables is called in
4068      initialise_varia is crucial for reverse control flow.
4069    o modifications in GMRedi to enable stable adjoint
4070      (corresponding modif's in thermodynamics, dynamics)
4071    o added missing hook for sponge layer code in external_forcing
4072    o modified test cost functions
4073    o storing in gad_advection (plus removal of write(0,*)!
4074    o missing headers TR1.h added in convective_adjustment routines
4075    o errorMessageUnit set non-equal zero in eeboot
4076      (conflict on some platforms, e.g. IBM SP3)
4077    o modified carbon verif.
4078    
4079    checkpoint44h_pre
4080    o vertical grid option: allow to put the Interface at the middle between
4081      2 cell-centers ; replace delZ in pkg/kpp by drF.
4082    o GM Advective form: Tracers are advected using the residual transport (=
4083      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
4084    
4085    checkpoint44g_post
4086    o fix surface correction term in multiDimAdvection (affects plume_on_slope
4087      results) ; ifdef missing in thermodynamics.F
4088    
4089    checkpoint44f_pre,checkpoint44f_post
4090    o added PTRACERS package
4091      This allows an arbitrary number of passive tracers to be integrated
4092      forward simultaneously with the dynamicaly model.
4093      + Implemented so far:
4094        - basic forward algorithm (time-stepping, advection, diffusion, convection)
4095        - I/O and checkpointing
4096        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
4097      + Not implemented so far:
4098        - KPP
4099        - OBCS
4100      + No specific example supplied (yet) but global_ocean.90x40x15 has the
4101        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
4102        line in data.pkg.
4103      + This package is disabled by default since it increases storage.
4104    
4105    
4106    o testscript: added -cleanup option
4107    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
4108                 b) enable to filter 2D fields.
4109    
4110    checkpoint44e_pre,post
4111    o re-wrote convective adjustment to use pre-calculated weights
4112      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
4113      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
4114      Original calls to convect() still in place.
4115    
4116    chkpt44d_pre,post
4117    o added missing EXCLUDE_MONITOR flags
4118    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
4119      (incompatible typ in MIN/MAX expressions caused problems
4120      on IBM SP3)
4121    o in genmake added variable MAKEDEPEND
4122      plus resetting for case SunOS
4123    o added timer_stats.c routine for IBM SP3
4124    o removed variables in dynamics
4125    !!! I forgot to create tag chkpt44d_pre !!!
4126    !!! But chkpt44d_pre = chkpt44c_post    !!!
4127    
4128    o real fresh water flux implemented with non-linear free-surface.
4129    
4130    chkpt44c_pre,post
4131    o few fix (mask in shap_s2, EmPmR in external_field_load,
4132      USE_NATURAL_BCS in solve_for_P);
4133    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
4134    
4135    checkpoint44b_pre/_post
4136    o merge of relevant stuff from the ecco-branch:
4137      - genmake: removed $S64 overwrite for case SunOS
4138      - pkg/exf: update and corrections for field swapping and obcs
4139      - pkg/ecco: parameter lists for the_model_main, the_main_loop
4140                  harmonized between ECCO and MITgcm
4141      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
4142                      updated checkpointing_lev... lists for obcs
4143      - model/src: minor changes in forward_step, plot_field
4144                   added directive for divided adjoint in the_main_loop
4145      - pkg/mdsio: added mdsio_gl_slice
4146    
4147    o check parameters & config (chkpt44a_pre,post)
4148    o OBC and NonLin_FrSurf.
4149    
4150    checkpoint44
4151    o fix bug in mom_vi_del2uv
4152    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
4153    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
4154    o update AIM experiments (NCEP input files)
4155    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
4156    o added some stuff for AD
4157    
4158    checkpoint43
4159    o added two new advection tests
4160    o added global 4x4 degree ocean test
4161    o added test of H&S94 with free surface on cube
4162    o some final mods for gradient check, adjoint,...
4163    
4164    checkpoint42
4165      Fixed AD-related problems:
4166    o Store directives up-to-date with re-arranged Adams-Bashforth
4167      (mainly thermodynamics.F)
4168    o New store directives for multi-dim. advection schemes
4169      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
4170      * new common block and key passkey
4171      (mainly gad_advection.F)
4172    o Modified store directives for split of dynamics/thermodynamics
4173      for the case ALLOW_KPP
4174    o Cleaned argument list for timestep_tracer.F
4175    
4176    checkpoint41
4177    o re-formatted/added comments in prologues of key subroutines
4178      to work with protex
4179    
4180    checkpoint40
4181    o moved calc_gs, calc_gt and calc_tr1 back to model/src
4182    o added FLT (floats) package from Arne along with demo. experiment
4183    o re-arranged Adams-Bashforth scheme for tracers to allow easier
4184      implementation of forward-in-time forcing terms
4185    o more mods for non-linear free-surface including new variable
4186    o modified multi-dim method to work on cube
4187    o bug fix in KPP (from DM)
4188    
4189    checkpoint40pre9
4190    o added DST advection schemes
4191    o fix MPI bug on SGI's
4192    o modifications for non-linear free-surface
4193    o fixed conditionals for fixed flow/passive tracer only mode
4194    o added tension/strain form of stress tensor
4195    o changes to commenting of arguments for TAF/TAMC
4196    o added/updated many matlab scripts
4197    o added multi-dimensional advection method for tracers
4198      
4199    checkpoint40pre8
4200    o new package rw/
4201      Added method for dumping intermediate local arrays:
4202      mdsio_writetile - same as mdsio_writefield except works from inside
4203                        bi,bj loop
4204      mdsio_writelocal - same as mdsio_writetile except works for local
4205                         arrays
4206      write_local_r? - higher-level wrapper for mdsio_writelocal
4207      Controlled by diagFreq. Defaults to zero (ie. no dumps)
4208      Example given at end of mom_vecinv.F that dumps some local arrays.
4209    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
4210      control flux-form versus vector invariant code.
4211      Switch is runtime flag vectorInvariantMomentum (defaults to false)
4212      or genmake -DISABLE ...
4213    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
4214      (additional storing is now needed for case vecinv;
4215      currently nothing implemented to switch this storing off
4216      in case fluxform is used since no CPP flag available).
4217    
4218    checkpoint40pre7
4219    o bug fix in dynamics.F
4220      calc_viscosity called before k=1,Nr loop.
4221    o added some #ifdef's ALLOW_PASSIVE_TRACER
4222    o cleaned initialisations in ctrl_map_ini
4223      related to TAF
4224    
4225    checkpoint40pre6
4226    o split dynamics into thermodynamics & dynamics
4227    o corresponding split of calc_diffusivity into
4228      calc_diffusivity, calc_viscosity
4229      (kpp_calc_diff, kpp_calc_visc).
4230    o Added diffkr, kapgm to control variables
4231    o bug fix in gmredi_slope_limit for ldd97
4232    
4233    checkpoint40pre5
4234    o proper initialization of Adams-Bashforth time stepping
4235      + uses forward step for very first step of model (iter=0)
4236    o re-generated *all* output since almost all output is modified by this
4237      change (sorry but we've been putting this one off for about 2 years)
4238      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
4239        *not* regenerated since they are already out of date and I don't
4240        want to create the impression that they are suddenly working.
4241    o removed KAP stuff for DEC's
4242    o modified/added many .cvsignore files in */code and */input
4243    o added new expt "solid-body.cs-32x32x1"
4244      + this uses an alternative form of ini_curvilinear_grid.F which
4245        is not necessarily any better than the current one...
4246    
4247    checkpoint40pre4
4248    o added re-initialisations of utrans,vtrans,rtrans in
4249      calc_common_factors which are crucial for TAF.
4250    o extended iMin,jMin range for calc_common_factors,
4251      calc_diffusivity
4252    o added option ALLOW_PASSIVE_TRACER
4253    o a few minor updates and fixes
4254    
4255    checkpoint40pre3
4256    o created calc_gtr1.F for gad package
4257    o split the_main_loop and re-introduced forward_step
4258    o some recomputations of nIter0 for TAMC
4259    
4260    checkpoint40pre2
4261    o Updated to latest branch of AJA, JMC
4262    o Added gradient check package
4263    o Added routines for passive tracer handling
4264    o Added carbon sequestration sensitivity experiment
4265    
4266    checkpoint39
4267     o Modifications and fixes to support TAMC
4268       (mainly missing or wrong directives)
4269     o Corrected common blocks when fooling TAMC to produce adjoint I/O
4270       in addummy_in_stepping
4271     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
4272     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
4273     o Included following packages:
4274       cal: calendar
4275       exf: external forcing
4276       ecco: essential routines to control use of cal, exf
4277             (NB: this is not the full ECCO environment)
4278     o disabled some packages by default in genmake
4279    
4280    checkpoint38
4281     o see notes_c37_adj.txt
4282     o corrected wrong layer index in external_forcing_t
4283     o replaced the_main_loop/forward_step by the_main_loop
4284     o removed forceoutput from write_state
4285       (replaced criteria for initial/final state)
4286     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
4287    
4288    checkpoint37
4289     o mdsio.F routine split and packaged in pkg/mdsio
4290       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
4291        used unless genmake -disable=mdsio)
4292     o allow a more precise surface-geopotential gradient for the atmosphere
4293       taking into account the change in space of Alpha (=1/rho) at the surface.
4294     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
4295       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
4296     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
4297       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
4298       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
4299     o Time-Average diagnostics defined as a pseudo package "timeave".
4300     o pickup files : old pickup (before c35) did not work with new code (c35
4301       and after) unless activating 2 commented lines in initialise-varia.
4302     o Non-Hydrostatic pickup file Pb fixed.
4303     o bug with Rigid-lid version (since c35) fixed.  
4304    
4305    checkpoint36
4306     o implement Crank-Nickelson barotropic time-stepping
4307     o recover Time-Average diagnostics
4308     o fix Pb in checkpoint (PR#19)
4309     o AIM become a standard package ; clean unused CPP_kees
4310    
4311    checkpoint35
4312     o subtantial rewrite of dynamics.f
4313     o allows staggered time-stepping
4314     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
4315     o added bottom drag (linear + quadratic)
4316    
4317    checkpoint34
4318     o Modified exchange routines for correct reverse simulation.
4319     o Added verification output to comply with bug fix in impldiff.F
4320       as of c33 (exp2, natl_box).
4321     o Corrected store directives in dynamics.F
4322     o Corrected array boundaries in impldiff.F
4323     o Corrected array dimensions in gmredi.
4324       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
4325     o Added routine GLOBAL_SUM_INT to global_sum.F
4326     o Added mdsio_gl.F for ECCO purposes.
4327    
4328    checkpoint33
4329     o Fixed bug in lower BC in impldiff.F
4330     o Fixed confusion about units of forcing arrays in FFIELDS.h
4331       namely Fu,Fv,Qnet,Qsw,EmPmR:
4332       - Removed verification/natl_box/code/external_fields_scale.F
4333         (did not differ from that in model/src)
4334       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
4335         (see FFIELDS.h for description)
4336       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
4337         kpp_calc.F and kpp_transport_t.F
4338       - Removed model/src/external_fields_scale.F and calls to it
4339       - verification/natl_box uses flux data with "atmospheric" sign so
4340         a special version of external_fields_load.F is used to
4341         change the data as it's read in. This way, the arrays
4342         have the right units and signs at all times tha a user could
4343         possibly use them.
4344     o Corrected genmake to delete a temporary file during configuration
4345    
4346    checkpoint32
4347     o Scaling of forcing fields moved from external_forcing.F to
4348       external_fields_scale.F, called directly after loading fields.
4349     o Surface relaxation terms added to surface tendency fields in
4350       extra subroutine.
4351     o impldiff.F changed to avoid storing by TAMC of huge intermediate
4352       fields.
4353     o Changes in GMRedi to comply with packaging structure.
4354     o Modifications and bug fixes in KPP package.
4355     o Verification experiment for KPP added (verification/nat_box/)
4356    
4357    checkpoint31
4358     o Packages interface brought in line with defined standard
4359       -> new routines packages_...F
4360       -> changes in initialise_fixed.F, initialise_varia.F
4361       -> enables initialisation interface for ECCO package
4362     o Rescaling of external forcing fields immediately after read
4363       (removed from external_forcing.F)
4364       -> new: surface_fields_scale.F
4365       -> affects ini_foorcing.F, external_fields_load.F
4366     o Computation of surface tendencies before tendency updates.
4367       -> new: external_forcing_surf.F
4368     o Change of variable names useGMRedi, useKPP, useECCO
4369     o Further changes in dynamics.F, impldiff.F for TAMC
4370     o Tested for experiments 0, 2, 4.
4371       - not yet tested for GMRedi.
4372       - not yet tested for KPP.
4373    
4374    checkpoint30
4375     o Updates for OBCs
4376     o New experiment for test OBCs (internal_wave)
4377     o New output.txt in verification/exp4/results/
4378     o Updates for KPP: calculation of viscosity corrected, new variables
4379       kpp_dumpFreq and kpp_taveFreq
4380     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
4381       and entry for T90 in genmake
4382    
4383    checkpoint29
4384     o packaged KPP and GM/Redi
4385    
4386    checkpoint28
4387     o Corrected initialization of hFacMin for difference vertical coordinates
4388     o Modified calculation of partial cell thickness to more robust algorithm
4389     o config_summary.F: replaced write_1D_... by write_0D_...
4390       read_write.F: added subroutines write_0D_...
4391     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
4392       included some initialisations required for TAMC.
4393     o routine calc_isoslopes: modified sqrt computation to make it
4394       differentiable for zero argument.
4395     o routines dynamics, impldiff:
4396       included store directives and tape key computations required for TAMC.
4397     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
4398    
4399    checkpoint27
4400     o fixed calc_isoslopes() to so that cancellation of terms in tensor
4401       formulation works properly with variable resolution.
4402     o restructured the calling tree between the_model_main() and dynamics()
4403     o split initialise() into initialise_fixed() and initialise_varia()
4404     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
4405       in new routine ini_psurf()
4406    
4407    checkpoint26
4408     o moved some #ifdef in optional routines to encompass everything
4409       except the argument declarations. This was using up some memory.
4410     o fixed macros like _ADT to work with both versions of Linux cpp
4411     o cleaned up some unused and uninitialized variables
4412       (helps when debugging with strict compile options)
4413     o split up CPP_EEOPTIONS.h into options and macros
4414       (macros are now in eesupp/inc/CPP_EEMACROS.h)
4415     o patch for 2 processor JAM mode
4416    
4417    checkpoint25
4418     o updates for OBCs and NH
4419     o dramatically reduced memory usage
4420     o added "JAM" routines for use on Artic network
4421     o parameterization of convection by implicit vertical diffusion
4422     o added a diagnostic of convective index
4423     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
4424       (this is was partly for OBCs and NH but also in anticipation of
4425        an explicit free-surface option)
4426     o initial state input files for U and V
4427    
4428    checkpoint24
4429     o Removed some spurious "REAL"s
4430     o Updated KPP to latest version from JPL
4431     o Added a COS(latitude) in horizontal viscosity
4432    
4433    checkpoint23
4434     o Added del^4 diffusion for salt and temperature
4435     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
4436    
4437    checkpoint22
4438     o Made many small changes: implicit none, format(i5), etc...
4439     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
4440    
4441    checkpoint21
4442     o Introduced new I/O package that supports direct-access records (mdsio.F)
4443     o Split-up mid-level I/O routines
4444     o Updated input data for experiments 0,1,2,4 and 5
4445     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
4446    
4447    checkpoint20
4448     o Tidied up open-boundaries some more
4449     o Added non-hydrostatic code
4450     o Fixed some input data
4451     o Modified MPI start-up to work in "coupled" context.
4452    
4453    checkpoint19
4454     o Tidied up directory structure for verification experiments.
4455     o Added new code for open boundaries.
4456     o Corrected advective terms near boundaries.
4457     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
4458     o Implemented free-slip/no-slip BCs and del^4 dissipation.
4459     o Split default parameters out of ini_parms.F into set_defaults.F.
4460    
4461    checkpoint18
4462     o Further changes for optional code generation with
4463       CPP - ugh!
4464    
4465    checkpoint17
4466     o Beginning to incorporating modularity
4467       for supporting atmos. and ocean configs.
4468     o Small changes for TAMC complinace
4469     o New ultra simple test case. Barotropic box
4470       configuration "exp0".
4471    
4472    checkpoint16
4473     o Minor changes to exchange routines to support
4474       accumulation in reverse mode. Adjoint of an
4475       assignment is an addition.
4476     o Changes to support compilation by TAMC (LR(1)
4477       syntax) and by g77 under Linux ( 72 character
4478       limit ).
4479    
4480    checkpoint15
4481     Rewrote exchange routines to allow
4482     o General tile <-> tile connectivity.
4483     o TAMC reverse mode flag ( is this really needed? )
4484     o Variable width overlap and exchange region widths.
4485     o Hooks for sharing data via DMA, Arctic, Memory Channel,
4486       shmput/shmget, VIA, SYSV shmem and every other cool
4487       communication method.
4488    
4489    checkpoint14
4490     Consistent isomorphism chages made. These allow dynamical core
4491     to support both pressure and meters as a vertical coordinate.
4492    
4493    checkpoint13
4494     Release which corrects global_max problem and a couple
4495     of KGM time-averaging diagnostic errors. Also contains
4496     a double-gyre experiment setup as well as the baseline
4497     4 degree global template. The double gyre template is
4498     organised to allow it to be applied automatically to
4499     the baseline configuration.
4500    
4501    branch-point-rdot
4502     A few tidy-ups have been made bt the real point of this
4503     check-point (excuse the pun) is to allow a branch to be
4504     made for the purposes of adding the rDot alterations.
4505     I don't want to commit the rDot to the main-trunk until
4506     we've actually tested it...
4507    
4508    checkpoint12
4509     Tidy up and added generic genmake script (formerly
4510     configure script).
4511     Released to testers.
4512    
4513    checkpoint11
4514     Re-arranged initialise() and introduced ini_vertical_grid()
4515     and ini_masks_etc().
4516    
4517    checkpoint10
4518     Introduced the configure script.
4519     Separated out the diags package.
4520     Added template for writing time-averages of tile/intermediate quantities.
4521     Updated SIZE.h in exp2 and made the data big-endian.
4522    
4523    checkpoint9
4524     MPI fix. Filename changes (meta/data). salbin*y stuff.
4525     General tidy-up.
4526     SST.bin SSS.bin added to verification/exp2
4527    
4528    checkpoint8
4529     Inludes time-dependant forcing and time-averaging.
4530     Works at 4x4 and 2.8125x2.8125 global
4531    
4532    checkpoint7-4degree-ref
4533     Branch from checkpoint7. Released for application to
4534     global modeling and general modeling - process studies, regional
4535     model etc..
4536     Configured for verification/exp2 - 4 degree global, two process.
4537    
4538    checkpoint7
4539     Created by cnh
4540     Simple 4 degree global simulation
4541     configuration.
4542     Includes climatological wind,
4543     hydrography, bathymetry etc
4544     Does not include Heat Flux and E-P
4545    
4546    checkpoint6
4547     Created by cnh
4548     merged checkpoint5 with CD and
4549     spherical polar code.
4550     Still some problems with GM Redi
4551     abd full topography.
4552    
4553    checkpoint5
4554     Created by AJA
4555     contains updates to GM Redi
4556     and reordered timestepping loop
4557     for Implicit Diffusion.
4558    
4559    checkpoint4
4560     Created by cnh
4561     Contains memory saving macros ( _rdxc etc..) for when
4562     grid variations are limited.
4563     Contains polynomial coeffs for EOS and knudsen program
4564     for generation.
4565    
4566  checkpoint3  checkpoint3
4567   Created by cnh   Created by cnh
4568   Added extra flags for runtime options   Added extra flags for runtime options
# Line 20  checkpoint1 Line 4581  checkpoint1
4581   Restructured kloop in dynamics.F   Restructured kloop in dynamics.F
4582   Added non-linear EOS   Added non-linear EOS
4583    
4584  baseline - Original checked in code  baseline
4585     Original checked in code
4586    

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