/[MITgcm]/MITgcm/doc/tag-index
ViewVC logotype

Diff of /MITgcm/doc/tag-index

Parent Directory Parent Directory | Revision Log Revision Log | View Revision Graph Revision Graph | View Patch Patch

revision 1.36 by jmc, Tue Feb 20 22:24:48 2001 UTC revision 1.1143 by mlosch, Mon Jul 20 07:42:32 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:
8     - remove unused variables in seaice_evp
9     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
10    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
11       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
12       each processor open a different file (a fix from Matt).
13    o cg2d:
14       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
15       this reduces number of EXCH calls by 2 when using exch2.
16       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
17       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
18    o pkg/thsice:
19       add code for Near Infra-Red albedo (from Jeff)
20       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
21    o ini_model_io:
22       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
23       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
24       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
25    
26    checkpoint61s
27    o pkg/exch2 (exch2_rxN_cube*):
28       remove last BARRIER (no need to synchronise after getting data from shared
29       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
30    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
31      and generate new output (for the 2 tests) using default rotationPeriod.
32    o pkg/exch2:
33      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
34        (was already the case with AUTODIFF_EXCH2 defined)
35      - add bj in exch2 arrays and S/R.
36      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
37        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
38    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
39      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
40        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
41      - verification experiment natl_box.longstep
42    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
43      allow different versions of ifort (8 or 9) and different versions
44       of mpi (mpich or mpich2) to be used with the same optfile.
45      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
46       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
47    o pkg/seaice:
48      fix previous modif (3-level field removed) for old-pickup reading
49    
50    checkpoint61r
51    o pkg/seaice:
52     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
53      1. introduce fields for time step (N-1)
54      2. do not use levels 2 and 3 anymore (but keep them)
55      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
56         includes changes to pkg/thsice/thsice_get_velocity.F,
57         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
58         pkg/obcs/obcs_apply_uvice.F.
59     - completely remove code for leap-frog time stepping for second order
60       advection
61     - adjusted adjoint accordingly;
62       gradient checks have improved by an order of magnitude!
63    
64    checkpoint61q
65    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
66     - the boundary conditions along open boundaries are unclear, because the
67       associated masks are set to zero and are thus treated as closed when
68       applying the slip-boundary conditions.
69     - move initialisation of grid variables from seaice_init_varia to _fixed
70    o adding doc/diags_changes.txt
71    o model/src:
72      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
73       to avoid "_diags" naming if no relation to pkg/diagnostics.
74      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
75       file and only call PLOT_FIELD_XYZ if debugMode=T.
76      remove few PLOT_FIELD_XY calls outside initialisation.
77      remove few unnecessary BARRIER.
78    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
79      of salt_plume package in Southern Ocean
80    o pkg/thsice:
81     - fix hOceMxL in overlap (needed for sea-ice advection);
82       update output of experiment global_ocean.cs32x15.icedyn.
83    o pkg/seaice:
84     - make the (placeholder-)tracer IceAge a little more meaningful
85      by avoiding ridging of age due to convergent ice flow
86     - add diagnostics for surface temperature, atmospheric and oceanic
87       heat flux, and atmospheric and oceanic ice growth
88    
89    checkpoint61p
90    o eesupp (global_max & global_sum):
91     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
92     - remove starting & endding barrier (no longer needed)
93    o pkg/mdsio, writelocal:
94       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
95       (remove the STOP): uses shared buffer IO to store data from all threads
96       and then let master-thread write nThreads tiles.
97    o pkg/mdsio (read/write field):
98     - tiled IO done in 1 piece (all levels at a time);
99     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
100     - multi-threaded: allow to read/write local (non-shared) array
101       (was already working with singleCpuIO ; now works also without);
102       => no longer needs barrier call after reading a file (added inside
103       mds_read/write field).
104     - move barrier calls outside gather/scatter_2d to mds_read/write_field
105    o pkg/obcs/exf
106      - exf_getffieldrec.F: add a few ". _d 0" and
107                            add code to catch the case fldperiod = 0.  
108      - obcs_precribe_read.F: change if statements so that they match
109                              the variable type (_RL)
110      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
111        exf_iprec) as part of namelist EXF_NML_01
112    o pkg/mdsio:
113      - read/write tiled (local) files: read/write 1-level tile chunk at a time
114        (instead of segment of length sNx); expected to speed up tiled IO.
115    o pkg/exch2:
116      - take buffer copy from/to array out of S/R exch2_send/recv into new
117        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
118        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
119      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
120      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
121        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
122        including Topology header file (and common blocks).
123      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
124        remove 2nd exch call in exch2_s3d_rx (no longer needed).
125      - document S/R arg. list (+ update some comments)
126    o pkg/seaice:
127      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
128        temperature and humidity over sea ice based on climatological values.
129      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
130        of LSR (this change is expected to change the results slightly because now
131        it uses slightly difference moduli from the second last LSR solution, but
132        that is more consistent with the stress computations; this part of the code
133        is not tested in the verification experiments)
134      - fix diagnostics for flux of ice in case of B-grid
135      - turn strain rates eij and press into global fields within global
136        common block in SEAICE.h for more straighforward diagnostics
137      - fix diagnostics for principal stress components, press, zeta, eta
138        to give something meaning full
139    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
140      new output (all 4 tests) using default rotationPeriod.
141    o pkg KPP:
142      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
143      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
144        and normal grid from 1 to Nr)
145    o Fix computations of L4rdt in mom_calc_visc.F
146    o eesupp:
147      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
148      should be called before a "stop" if we know that all process are going
149      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
150    
151    checkpoint61o
152    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
153    o model/src/ini_curvilinear_grid.F:
154       compute angleSin/CosC when they are not read from a file
155    o pkg/seaice:
156       add pseudo time stepping for LSOR
157    o pkg/exch2:
158       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
159    o pkg/seaice:
160       Adding separate sea ice albedo, drag coefficients, and HO in Southern
161       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
162    o SingleCpuIO:
163       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
164    o pkg/seaice:
165       put exchanged variable in (local) common block for MPI+Multi-Threads
166       to work (necessary with exch1, and for now with exch2 too).
167    o verification: to get more experiments tested with mpi, mth and mpi+mth,
168      change tiling of:
169       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
170       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
171      update output of exp:
172       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
173       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
174      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
175                       (note: output.txt generated on faulks using only 1 tile)
176    o eesupp & mdsio (SingleCpuIO):
177     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
178       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
179       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
180     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
181     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
182       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
183    o pkg/exch2:
184     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
185       read parameter file "data.exch2" if it exists; otherwise try default regular
186       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
187     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
188       with new code (not to be used, just as a backup solution).
189     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
190       in utils/exch2/input.
191    
192    checkpoint61n
193    o eesupp & mdsio (SingleCpuIO):
194      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
195        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
196        receive real*4 array (instead of real*8) to read/write 32.bit files.
197        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
198         and remove new mapping S/R)
199    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
200      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
201        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
202        when using exch2. Add S/R to map global io-buffer to global model array.
203      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
204    
205    checkpoint61m
206    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
207      and add 3 other S/R for other types (R4,R8,RS).
208      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
209    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
210     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
211     - reduce number of macro definitions (keep only those which are used);
212       can always call directly the corrresponding S/R if needed.
213     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
214       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
215     Fixed wrong type of arg in:
216       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
217       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
218     To fix: global_sum of var in common block is wrong (multi-threaded) in:
219       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
220     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
221    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
222      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
223    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
224    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
225      edges are closed (zero depth); might happen with "blank tiles";
226      for now, disabled if using OBCS.
227    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
228      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
229    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
230      to reduce length of 1.D array print in STDOUT.
231    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
232      + use 48 tiles (16x8): this will allow to test "blank tiles".
233    o start to test MPI + multi-threaded (change testreport to skip tests
234      where number of tiles do not match).
235    o genmake2: add option "-omp" to turn on Open-MP ;
236      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
237    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
238      and keep the original tile numbering. Note: compatible with old
239      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
240    
241    checkpoint61l
242    o Overlaps had been forgotten in calculating ijk keys : fixed
243    o fix cyrus makedepend for gcc 4.4
244    o experiment fizhi-cs-aqualev20:
245      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
246      and generate new output. Note: new output is much closer to the old
247      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
248      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
249    o pkg/fizhi:
250     - change to avoid indices going deliberately over array-bounds
251     - remove unnecessary MPI stuff
252     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
253     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
254       does not go over array-bounds and therefore returns reliable output.
255     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
256       this S/R has 4 output arguments, which are used inside "get_alarm";
257       when it is called with the same variable "ndum" in place of several
258       output arguments, this produces weird side effect inside "get_alarm"
259      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
260       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
261       address) and produces error.
262    o tools/gemake2: (March 27-29 2009)
263      with option "-mpi": link *_mpi files from "MODS" dir (this is what
264      testreport does).
265    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
266    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
267       update lab_sea.lsr & lab_sea.salt_plume results
268    o pkg/seaice:
269      Major overhaul of the LSOR solver: change discretization from original
270      finite differences to finite volume. The old routine is still in the
271      file seaice_lsr.F and can be turned on with the CPP-flag
272      SEAICE_OLD_AND_BAD_DISCRETIZATION
273      Along with this change, the discretization of the strain rates is changed.
274      The same flag turns on the old discretization in seaice_calc_strainrates.F
275      All verification experiments with seaice are affected (except for
276      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
277      results by setting the above flag.
278      Further changes involve changes in defaults:
279      - ALLOW_FLOODING is defined and turned on by default
280      - SEAICEadvSnow = .true. is now the default
281      - SEAICEadvSalt = .true. is now the default
282      - SEAICEadvAge  = .true. is now the default
283      - SEAICE_clipVelocities  = .false. is now the default
284                                         (as per J. Zhang's recommendation)
285      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
286        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
287      - seaice_growth: replace computation of UG by a simple copy from wspeed
288    
289    checkpoint61k
290    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
291      seaice_lsr: fixed a few metric terms,
292                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
293                  add more debugging diagnostics
294      seaice_evp: removed superfluous many metric terms of FV discretization
295                  of stress divergence
296                  affects lab_sea, lab_sea.hb87
297      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
298                  of stress divergence for non-evp solver
299                  (this part is not tested anywhere)
300      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
301                  they were effectively only half slip
302                  affects lab_sea.hb87
303      updated all relevant verification experiments (except lab_sea//output_adm.txt
304        which was left over, but fails at level 7 & 6)
305    
306    checkpoint61j
307    o pkg/seaice: turn a few hard wired parameters into run time parameters
308    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
309      time in seconds as promised by the usints in seaice_monitor and exf_monitor
310    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
311      that are not cubed-sphere grids
312    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
313    o pkg/ctrl:
314      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
315    o non-hydrostatic (calc_gw.F):
316      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
317      update output of exp. global_ocean.cs32x15.viscA4
318    o remove backward compatibility for thetaMin,phiMin
319      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
320    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
321      interpolated wind field not only for curvilineargrid=.true., but also
322      for a rotated grid (rotateGrid=.true.)
323    o pkg/exf: add capability to bypass interpolation for runoff
324      by setting yet another CPP-flag
325    o eesupp/src, B-grid exchange:
326      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
327    o autodiff
328      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
329      allows to switch to single-prec common blocks;
330      corresponding switch occurs in tamc.h, integer isbyte
331      TAF store directivs "byte" and "kind" seem equivalent;
332      Most tamc.h have been updated correspondingly.
333    
334    checkpoint61i
335    o autodiff:
336      fix autodiff_sore/_restore indices for obcs
337      (spotted by I. Hoteit, M. Mazloff)
338    o pkg/autodiff, pkg/ctrl:
339      Add flag to reduce all tapelev I/O to single-prec.
340      In data.ctrl set
341        doSinglePrecTapelev = .TRUE.
342    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
343      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
344    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
345      real fresh water flux (not yet)
346    o pkg/mdsio & rw:
347     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
348     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
349    o pkg/flt:
350     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
351       init_fixed & ini_varia.
352     - clean-up & simplify linear interpolation S/R:
353       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
354     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
355     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
356     - add vert. coordinate & horiz. indices to output files.
357     - change vertical position in initial condition, from index to depth [m].
358     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
359       (easier to get to a curvilinear grid) ; delX,delY no longer used.
360    o pkg/ggl90: a few modifications:
361     - fix bottom boundary condition, and interpolation of KappaE
362       near top and bottom
363     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
364     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
365     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
366    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
367      (maintain temporary backward compatibility, until next checkpoint)
368    
369    checkpoint61h
370    o pkg/diagnostics with "periodic averaging diagnostics":
371      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
372    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
373    o pkg/obcs: fix loop ranges for balancing code
374    o pkg/flt:
375     - improve criteria for finding which tile owns a float.
376     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
377    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
378      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
379      with ocean biogeo)
380    o pkg/flt:
381     - do some cleaning and fix the restart ;
382     - add output.txt in flt_example/results to get this pkg tested.
383    o genmake2: add an EXTENDED_SRC option and flag.
384       for now, cannot be turned on on command line (only through genmake_local)
385    o pkg/mdsio: read/write vector:
386     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
387     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
388       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
389     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
390      (drop to 4 digits matching for grad). But this test does not look very
391      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
392    
393    checkpoint61g
394    o pkg/flt:
395      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
396       + make OPTIONS file more standard.
397      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
398      - fix _BYTESWAPIO CPP-Flag
399      - standard reading of file-parameter "data.flt"
400      - fix argument list of S/R FLT_RESTART
401      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
402    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
403    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
404      a still unfixed compiler/optimization bug
405    
406    checkpoint61f
407    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
408      update results of global_ocean.cs32x15.icedyn test.
409    o move getcon.F from model/src to pkg/fizhi.
410    o pkg/exf: add parameter for extrapolation of temp up to the surface
411       and option to prevent negative evap (in bulk_largeyeager04 only).
412    o Prather Advection scheme: fix tracer conservation for divergent flow
413      (e.g., when using NonLin Free-Surface).
414    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
415    o gmredi (Visbeck-variable-K):
416     - add more parameters to Visbeck-variable-K.
417     - use a 5 points average for dSigmaR in Visbeck-K calculation
418       (more "homogenous": same stencil and same weights as in dSigmaH)
419     - update output of ideal_2D_oce experiment.
420    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
421      (#undef REAL4_IS_SLOW)
422     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
423       coordinate variable
424     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
425       (surface forcing fields), removes some of the functionality
426     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
427     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
428       probably not all: copy _RS surface flux fields to RL field before
429       calling DIAGNOSTICS_FILL
430     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
431       real*4 (CALL EXCH_*_RS) versions.
432     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
433       (generate new output).
434    
435    checkpoint61e
436    o gmredi (Visbeck-variable-K):
437      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
438      - change computation of Visbeck-K where Slope > Smax :        
439        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
440        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
441    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
442      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
443    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
444    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
445      does not become too large (to avoid precision problems in implicit-diffusion
446      solver); update ideal_2D_oce output.
447    o pkg ggl90:
448      - in ggl90_cal.F: compute only one set of visc/diff, used to
449        step forward TKE/T/S/momentum
450      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
451        have Prandlt =1)
452    o gmredi (fm07):
453      - add lower limit on Transition layer thickness + lower limit on 1/lambda
454      - allow to set few more params from data.gmredi
455    o pkg ggl90:
456          - add missing sqrt(2) factor in computation of mixing length
457            scale in ggl90_calc.F
458            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
459    
460    checkpoint61d
461    o adjoint modifs
462      - adapt to new field rhoInSitu
463      - allow to revert from StoreDynVars2D, StoreDynVars3D
464        to individual fields
465        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
466    o store 3-D (in-situ) density in commom block (DYNVARS.h)
467     - save 1 rho computation.
468     - no longer modify T & S inland when using down_slope pkg.
469    o gad_som : allow to switch to SOM advection for T & S without corresponding
470      pickup files (using new S/R: MDS_CHECK4FILE).
471    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
472      (for useSingleCpuIO to work in multi-threaded)
473    o pkg/shelfice:
474     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
475       with SHELFICEtopoFile in data.shelfice
476     - move code for reading ice shelf topography and modifying hFacC into separate
477       subroutines of the shelfice package
478     - separate initialisation of "fixed" and "variable" variables
479     - kTopC is not (yet) replaced by kSurfC, although this is possible
480    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
481    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
482      and rename:
483      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
484      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
485    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
486    
487    checkpoint61c
488    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
489      to add mass source/sink of fluid in the interior (3-D generalisation
490      of oceanic real-fresh water flux).
491    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
492    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
493    o new pkg: down_slope
494      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
495      - presently, modify T & S inland (dwnslp_calc_rho.F).
496        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
497      - implementation for ocean in P-coords not tested.
498      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
499    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
500      (to facilitate conversion of oceanic pkg to p-coordinate).
501    o change FIND_RHO to FIND_RHO_2D :
502      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
503    o new pkg: cheapaml
504    
505    checkpoint61b
506    o exch2:
507      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
508      - no longer depend on the order sequence (N,S,E,W).
509      - 3rd exchange no longer needed (tested with 24 tiles).
510      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
511      - exch_UV_A-grid readily available (but not yet tested).
512      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
513      (both are no longer needed) in exch_uv: no effect in forward run; but
514       get truncation error differences with adjoint exch.
515    o exch2:
516     - change index-bounds storage (moved from target to local tile,
517       more intuitive this way) ; rename/remove some variables.
518     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
519    
520    checkpoint61a
521    o exch2/matlab-topology-generator:
522      fix bug in index bounds for N-S internal exchange (hard to tell if this
523      had any effect on the solution).
524    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
525      is exceeded
526    o testreport: modify syntax of awk, so that it works also with
527      awk, and not only with nawk and gawk
528    
529    checkpoint61
530    o autodiff
531      Change default for TAF usage by removing argument '-nonew_arg'
532      This changes TAF subroutine argument list (ordering of active var.)
533      Omission of this flag leads to incompatibility w.r.t. TAMC
534      To restore TAMC-compatibility, need following modifs:
535      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
536      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
537      Tested TAF version is 1.9.22
538      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
539    
540    checkpoint60
541    --->>> This is the last checkpoint for which generating the adjoint
542    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
543    --->>> by default.
544    --->>> Future checkpoints will ommit this flag by default.
545    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
546    o pkg/grdchk: Add gradient check to etan0 perturbations.
547    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
548    o pkg/autodiff: more flexibility in zeroadj.
549      model/src: modifying do_oceanic_phys.F accordingly.
550    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
551    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
552      special setup of gmredi for which the adjoint is stable
553      enough for parameter optimization.
554    o bridging the gap between eddy stress and GM.
555      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
556          along with a change in CPP option (now ALLOW_EDDYPSI).
557      -> when using GM w/ GM_AdvForm:
558          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
559          is applied either in the tracer Eq. or in momentum Eq.
560          depending on data.gmredi (intro. GM_InMomAsStress).
561      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
562      The key modifications are in model/src/taueddy_external_forcing.F
563      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
564    
565    checkpoint59r
566    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
567      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
568      fix option to read coriolis(@ cell-corner) from files with CS-grid.
569    o pkg/mnc: add some attributes to standard 1D-coordinate variables
570    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
571      mass points, when using mnc for output
572      - add runtime parameter (missing_value, missing_value_int) to override
573        default (which is the value of getcon('UNDEF'))
574    o pkg/mnc: prepare mnc for the actual use of missing values with the
575      diagnostics package: small fix in mnc_cw_readwrite.template and more
576      initialisation of never used fields
577      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
578      versions
579    o pkg/thsice/thsice_ini_vars.F added default initial values so that
580      thermodynamics sea ice solver does not blow up when some initial fields
581      are missing.
582    o move from external_forcing_surf.F to ini_forcing.F
583      the p-coord. hack consisting in using pLoad to set phi0surf ;
584      update output of tutorial_global_oce_in_p (affected @ truncation level).
585    o Freshen up a bit hs94.1x64x5, notably:
586      remove rotationPeriod and tRef=5*0. (adjoint only), and add
587      exactConserv=.TRUE.
588    o pkg/generic_advdiff:
589      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
590      applies to files where Temperature & Salinity 2nd Order moments are used.
591    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
592      this uses a dynamically allocated internal state data structure
593      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
594      and requires a fortran 90 compiler
595    
596    checkpoint59q
597    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
598       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
599    o Refresh tutorial_global_oce_biogeo, notably:
600      - change bathymetry (put back seamounts in ACC, use hFacs)
601      - change EOS (POLY3 --> JMD95Z)
602      - use Bryan-Lewis vertical diffusivity
603      - use multidimensional advection
604      - remove old virtual virtual in dic pkg, now done through ptracer pkg
605      - change a couple of parameters in dic pkg
606    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
607    o pkg/obcs: change default to OBCSfixTopo = .true.,
608      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
609      - replace "debugMode" with "debugLevel .GE. debLevB"
610    o implementation of TAF directives for gchem,cfc,dic
611    o remove "exp5" (replaced by tutorial_deep_convection).
612    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
613      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
614      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
615      --> changes results in exp4, seaice_obcs
616    o tutorial_deep_convection :
617      update the set-up and increase resolution and domain size ; start
618      from pseudo initial conditions = output at t=120mn in order to see
619      something happening when running testreport.
620    o pkg/seaice: add os7mp as an advection scheme
621                  add check for advection schemes
622                  add a flag for restoring T and S underneath sea ice
623    o pkg/my82: add netcdf-support and diagnostics
624    o thsice pkg:
625      - Now hsMax limits snow height by turning it into ice following
626        flooding scheme (and now conserving energy)
627      - Slight rewriting of the formula in thsice_calc_thick.F
628      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
629      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
630    
631    checkpoint59p
632    o gchem / dic / cfc :
633      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
634      - add new parameter files: "data.dic" & "data.cfc" ;
635      - various re-arrangement in initialisation & header file ;
636      - fix tutorial_global_oce_biogeo for multi-threaded test.
637    o pkg/dic: test for "pickup_dic" file when restarting ;
638      if no pickup-file, can restart with a re-initialised pH (same as it did
639      before) providing pickupStrictlyMatch is set to False.
640    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
641      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
642    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
643      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
644    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
645     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
646       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
647    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
648       scheme to use for vorticty-term ;
649     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
650       (with default selectVortScheme, return to original discretisation)
651     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
652    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
653    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
654      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
655      also fix diagnostics VISCAHW & VISCA4W.
656    
657    checkpoint59o
658    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
659    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
660      move a few statemens out the main loop into separate loops
661    o pkg/shelfice:
662      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
663        (kg/m^2/s), does not break tests, because in verification/isomip,
664        rhoConstFresh=rhoConst (by accident)
665      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
666      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
667        new file model/src/seawater.F, so that they are available for all pkgs.
668      - convert potential temperature into in-situ temperature. This changes the
669        isomip tests => update tests
670    o add a flag writePickupAtEnd (default=true) to be able to suppress
671      writing a pickup at the last timestep
672    o tools/mpack-1.6 :
673      - disable automake (not working) and autoconf (not needed).
674      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
675        also cleaner with much less compilation warnings.
676    o pkg/profiles:
677      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
678      (for "less than 32 characters name" compiler requirement)
679    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
680      conditions that have a different sampling frequency than S/T/U/V obcs
681    o pkg/diagnostics (stats-diags):
682      - fix global Min/Max in case 1 processor get only empty tiles
683    o genmake2: replace (4 times)
684         make genmake_tc_1.o >> genmake_warnings 2>&1
685      with
686         COMM="$CC $CFLAGS -c genmake_tc_1.c"
687         echo $COMM >> genmake_warnings
688         $COMM >> genmake_warnings 2>&1
689      to make genmake2 always see the value of CC as specified in the optfile.
690    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
691      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
692      - modify verification advect_cs test to test SOM-advection on CS-grid.
693    o pkg/ctrl:
694      - Rewrite of ctrl_map_ini_ecco.F,
695        introducing a generic routine (ctrl_map_ini_gen.F).
696      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
697    
698    checkpoint59n
699    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
700      number in dedicate array "hdiag":
701      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
702        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
703      - many small changes (integer format) for large number of diagnostics
704      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
705        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
706    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
707      usingSphericalGrid, this allows to define the rotated grid coordinates
708      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
709      geographical coordinates according to the inverse of the rotation defined
710      by the Euler angles, so that Coriolis parameter and online-interpolation by
711      exf works with the geographical coordinates on XC/YC/XG/YG.
712      Naturally, this feature does not work with all packages, so some
713      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
714      profiles), because there the coordinates are assumed to be regular
715      spherical grid coordinates.
716    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
717      - introduce isopycnal diffusion coefficient control.
718    o tools/adjoint_options:
719      - additional control vector components.
720    o pkg/mnc: have mnc create marginally meaning full coordinate variables
721      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
722    o pkg/mypackage:
723      - add example of read/write pickup for state-var ;
724      - add entry points to the main code for state-vars diags & write-pickup.
725    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
726      transitions for useExfYearlyFields
727      - add new subroutine that determines the file to read from for
728        use*YearlyFields = .TRUE. and .FALSE.
729      - add a verification experiment to global_with_exf that tests
730        useExfYearlyFields with USE_EXF_INTERPOLATION defined
731    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
732      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
733      subroutines (which could be generated from a template, because they are
734      almost identical), for now they are included in obcs_prescribe_read.F for
735      simplicity
736    o pkg/exf:
737      - add a little more diagnostic to exf_interp_read (in analogy to
738        mds_read_field, can be turned off with debugLevel < debugLevA=1)
739      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
740        ugly but fast by unrolling short inner loops, inserting a unroll=8
741        directive in routine lagran, and splitting a loop and making do while the
742        outermost loop (the latter requires the intoduction of index arrays)
743    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
744    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
745      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
746    o verification/seaice_obcs: updated for restart test and latest options
747    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
748      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
749      for now this is only available for the C-grid code and also within
750      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
751    
752    checkpoint59m
753    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
754      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
755    o gad_som : fix flux output (& diagnostics) to have same units as other  
756      advection scheme fluxes (was previously multiplied by deltaT).  
757    o added verification/seaice_obcs both to test seaice open boundaries
758      and to provide an example matlab scrpt for generating them
759    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
760    o pkg/salt_plume: clean up salt_plume_frac.F to
761      remove redundancy in PlumeMethod 1 and 4
762    o pkg/kpp: added saltplume diagnostics
763    o pkg/obcs and pkg/seaice:
764      - do not set uice and vice to zero when OB*icefile are unspecified
765      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
766      - moved seaice tracer obcs after call to seaice_growth
767    o pkg/salt_plume: added various options for salt plume depth
768      criterion and for vertical distribution of the salt
769    
770    checkpoint59l
771    o pkg/ptracers: new version of ptracers pickup:
772      read meta file and write only fields which are needed to restart.
773      ( same logic as main pickup file ; also using pickupStrictlyMatch )
774    o pkg/seaice:
775      - add timescale for melting due to warm mixed layer as a means of
776        setting SEAICE_availHeatFrac more conveniently
777      - add a CPP-flag/runtime parameter check for flooding algorithm
778      - reformulated availHeat in seaice_growth.F to be independent of AREA
779    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
780      unit changes
781    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
782    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
783      SX vector computer.
784    o pkg/seaice:
785      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
786        seaice forcing fields can now be read only through pkg/exf
787      - removed some unused halos
788    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
789    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
790      or U/VICE from U/VWIND before computing U/VSTRESS
791    
792    checkpoint59k
793    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
794      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
795    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
796      all experiments pass when compile with un-initialised var. checking option.
797    o added pkg/salt_plume
798    o script to test restart (for now, in MITgcm_contrib/jmc_script)
799    o pkg/seaice: new read/write pickup version.
800      read meta file and write only fields which are needed to restart.
801      ( same logic as main pickup file ; also using pickupStrictlyMatch )
802    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
803    o lab_sea.hb87: modify the domain & update output.hb87.txt :
804      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
805      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
806      process. Fixed here by closing the domain at the Northern boundary.
807    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
808    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
809      a set of consecutive levels in/from a 3-D array.
810    o pkg/ptracers:
811      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
812      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
813    
814    checkpoint59j
815    o in pkgs: dic, obcs, offline, rbcs:
816      standard way to compute coeff. for time interpolation between 2 time reccords
817      which retains full precision (& make results less dependent on compiler).
818      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
819    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
820      packages instead of reading ice cover and wind speed separately
821    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
822     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
823      to allow to compile customized code before the update)
824    o cleaning-up:
825      - fix CPP instruction syntax in pkg/obcs
826      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
827        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
828      - fix some threads issue in IO parts.
829    o pkg/dic:
830      - add tons of "_d 0" (--> much better testreports !)
831       and then update outputs of tutorial_global_oce_biogeo
832    o pkg/mom_fluxform:
833      add a special version of momentum advection intended to conserve momentum
834      next to a bathymetry step or a coastline edge. (default = off = #undef)
835    o new read/write pickup version:
836      - for now, only implemented for main (mdsio) pickup file.
837      - write out only what is needed to restart; merge pickup_nh , pickup_ph
838        and main pickup together.
839      - read meta file; read only what is needed to restart; stop if a field
840        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
841        if it make sense (even if the restart is not perfect).
842      - if no meta file, assume that pickup to read corresponds exactly to
843        a pickup that would currently be written.
844      - read pickup written in the old format (until checkpoint59i) if it
845        recognizes an old meta file (no field-list).
846      - add a meta file in exp. which starts from a pickup: 2 cases:
847        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
848         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
849        b) a meta file describing the content of the associated pickup file
850         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
851    o pkg/mdsio & pkg/rw:
852      - new routine to read a meta file ; new set of routine to read
853        Multiple-fields file (with meta file).
854    o added open boundary conditions capability for seaice
855        HSNOW, HSALT, UICE, and VICE
856    
857    checkpoint59i
858    o adjoint:
859      * fix multiDimAdvection adjoint
860        (partial recomputation problem by TAF for fVerT(:,:,kDown)
861        and comlev1 size definition (maxpass vs. max. number of tracers)
862      * verification/global_ocean.90x45x15 adjoint now tests
863        NLFS and multiDimAdvection using DST3 (=30)
864      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
865    o pkg/kpp: add "_d 0" to real constant (if missing);
866      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
867      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
868    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
869      for internal parameters related to restart process (formerly from PARAMS.h)
870      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
871    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
872      as argument. (only atm2d & obcs write_pickup have not yet been updated)
873    o pkg/monitor:
874      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
875      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
876      - account for deep Atmosphere factor and density factor (anelastic)
877    o added open boundary conditions capability for seaice HEFF and AREA
878    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
879      thermodynamics
880      - requires a little reorganization, which affects the testreport results
881        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
882        so that now the conservative form is tested
883      - add a few comments
884    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
885    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
886    o add new diagnostics to seaice: advective, diffusive fluxes (only for
887      multidim-advection, for scheme 2 they are not filled) and transports,
888      thermodynamic growth rates
889    o change units of EmPmR (inside the code, + within coupling interface)
890      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
891      Affects results @ truncation level (cg2d match) and update output of
892       experiments: lab_sea(6), global_ocean.90x40x15(10),
893      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
894      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
895      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
896      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
897    
898    checkpoint59h
899    o pkg/exf:
900      - improve vectorization by moving if-statement out of loops in
901        exf_mapfields, exf_radiation
902      - exf_bulkformulae.F: introduce 2D fields and vectorize code
903    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
904    o testreport:
905      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
906        monitor & update offline_exf_seaice exp. output.
907      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
908    o pkg/seaice:
909      - bug fix in the evp solver: boundary conditions were affected be
910        masking of zMax/zMin (changes results)
911      - minor bug fix in boundary conditions in seaice_calc_strainrates
912        (changes results for no_slip)
913      - seaice_lsr.F: make interpolation of eta dependent on boundaries
914      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
915      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
916        stress formulation and no-slip boundary conditions
917    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
918      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
919    o pkg/seaice: a first HSALT time stepping equation has been checked in
920    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
921      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
922      without requiring DO-IF statements
923    o pkg/thsice:
924      use continuous power-law function for partition of energy between lateral
925      melting/freezing and thinning/thickening ; old code using step function
926      still available with #undef THSICE_FRACEN_POWERLAW
927      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
928    o testreport: change AD testing : check against results/output_adm.txt
929      using same scripts as for forward test.
930    
931    checkpoint59g
932    o adjoint testing: in preparation for changing testreport:
933      - output format: cost and grad written on separated lines
934      - ad output results in directory "results" (instead of "results_ad")
935    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
936    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
937    o pkg/ecco: allow user defined cost function contributions
938    o testreport:
939      Allow to choose (per experiment) the list of tested output variables
940       and the main variable (used to issue a pass/FAIL ) ;
941      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
942      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
943      Also modify printing of summary:
944       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
945       b) echo the list of tested variables in the individual summary.txt of
946          each experiment.
947    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
948      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
949      (but still depend on the tile decompostion of the domain).
950    o pkg/seaice: change a discretization detail to make the B-grid code
951      "more symmetric". This change is likely to remove all "ridges/leads" that
952      where quasi-aligned with the grid in B-grid solutions. It may also be
953      the solution to the stress coupling issues with the B-grid.
954    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
955      remove .cvsignore from input dir. (since testreport no longer run here).
956    o pkg/thsice:
957     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
958     - fix reshaping of sea-ice just after advection:
959       melt all the ice only if ice-volume is too small.
960     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
961       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
962     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
963    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
964      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
965    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
966      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
967      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
968      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
969      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
970      -> update output.txt
971    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
972     this affects truncation error: -> update output.txt of exp:
973      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
974      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
975    
976    checkpoint59f
977    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
978    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
979      a bounded range (in forward mode)
980    o pkg/ecco, ctrl, autodiff and mom_common:
981     internal parameter controls, completements of implementations
982    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
983    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
984      (not seem any difference in testing results).
985    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
986       at face corners.
987    o pkg/generic_advdiff:
988     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
989      loop range indices for computing vertical advection tendency
990      and do the calculation in the interior only (no overlap) ;
991      for now, only implemented for SOM advection (to save CPU time).
992     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
993    o exch2 adjoint
994      First set of changes:
995      - add exch2 hand-written adjoint templates
996      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
997        This will require cleanup in pkg/autodiff/*.F
998        (changed routines currently kept separate in verif. code/)
999      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1000        that used to hide exch2 or cubed-sphere specific code
1001        (commented via 'cph-exch2')
1002    o pkg/seaice
1003      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1004    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1005       output of global_ocean.cs32x15.thsice .
1006    
1007    checkpoint59e
1008    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1009      for B-grid vector (not yet tested) and C-grid vector (<- only used
1010      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1011    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1012      (#ifdef ALLOW_SALT_PLUME)
1013    o gather_2d/scatter_2d: removed halo regions
1014    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1015      scheme and the corresponding test case (under front_relax dir). For now,
1016      only available with Skew-flux form and not yet tested in realistic set-up.
1017      adjoint: store directives updated, but gradient checks deteriorated,
1018      so maybe GM/Redi adjoint is now broken.
1019    o seaice adjoint
1020      * add AREA, HEFF, HSNOW as control variable
1021        (should not change lab_sea results)
1022      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1023    o pkg/seaice:
1024      * added computation of saltFlux in seaice_growth;
1025        For time being, sea ice salinity is assumed constant
1026        contribution of snow flooding to freshening of sea ice is neglected.
1027        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1028        defaults to 0.0 in order to maintain backward compatibility.
1029        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1030      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1031      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1032        heat content used to melt or grow ice
1033      * commented out cap of HICE: it helps keep ice thinner
1034      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1035      * applied OBCS T/S mask to HEFFM sea ice mask
1036    
1037    checkpoint59d
1038    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1039     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1040     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1041    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1042     and change default value of parameter "GM_Small_Number";
1043     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1044       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1045       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1046    o pkg/ecco: cost function when applying pkg/smooth to controls
1047    o pkg/ctrl: add forcingPrecond run time parameter
1048    o pkg/seaice:
1049     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1050     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1051       changes verification/lab_sea
1052     - rearrange implicit part of u-equation in LSR solver to make it easier to
1053       read, understand, and debug. This causes changes at the truncation level.
1054     - fix (serious) bug in the boundary conditions (sign error in the implicit
1055       part) of the LSR solver. Changes all LSR results.
1056     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1057       is initilized with small values - does not change lab_sea results.
1058     - added HsnowFile initialization capability
1059    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1060     initialization of pkg/smooth and application to control vector
1061    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1062    o dependencies: pkg/profiles requires pkg/cal
1063    o pkg/profiles:
1064     - added option ALLOW_PROFILES_GENERICGRID
1065         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1066         that interpolation information (grid points and coefficients) is provided
1067         within the netcdf input files.
1068         -> sample matlab scripts can be found in MITgcm_contrib/gael
1069         that allow you to prepare netcdf input files.
1070     - also modified: cleaner include statements, cleaner error print statements,
1071       cleaner stops when error, and more tests of the netcdf input files consistency.
1072    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1073    o pkg/seaice:
1074     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1075       requires a new routine: seaice_diagnostics_fill.F
1076     - make sure that seaice does not move if not forced (pressure replacement
1077       method, Hibler and Ip, 1995), changes results
1078     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1079     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1080       It is turned off by default (=-1.), because it changes the results.
1081     - make it possible to read AREA from a file, too.
1082    
1083    checkpoint59c
1084    o add S/R and diagnostics for oceanic mixed-layer depth
1085    o move GMRedi call after all vertical mixing schemes (including KPP)
1086    o pkg/thsice:
1087     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1088      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1089    o pkg/obcs:
1090     - bug fix for balance code
1091    o pkg/seaice:
1092      - allow values of SEAICE_elasticParm > 1
1093      - add new parameter SEAICE_evpTauRelax as an alternative
1094        to SEAICE_elasticParm
1095      - make lsr boundary conditions free slip (by default), changes result
1096      - add code for no slip boundary conditions for lsr
1097      - set minimum of zeta to zero (and not 4e8) (changes results)
1098      - add a cap on AREA after advecting AREA if seaice_growth is not called
1099    o change calculation of Visbeck K:
1100      - no longer depend on tapering scheme; instead, compute slope (limited
1101        by GM_maxSlope). this is equivalent to what was comuted before with
1102        clipping or linear tappering.
1103      - fix vertical averaging (wrong by 1/2 level)
1104      - leave the old version (but will not be maintained) within
1105        #ifdef OLD_VISBECK_CALC / #endif
1106      - update output of exp. ideal_2D_oce
1107    o change error catch in calc_r_star to improve vectorization
1108    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1109      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1110    o adjoint:
1111      Re-organized adjoint checkpointing according to Matt Mazloff
1112      (but with modifs/completions/cleanups)
1113      Storing is now bundled into large arrays to optimized I/O
1114      (and second step in cleanup of the_main_loop)
1115    
1116    checkpoint59b
1117    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1118      - export/import (between ocean & coupler) fields needed for ocean DIC.
1119    o pkg/seaice:
1120      - get rid of three more exchanges seaice_calc_viscosities (required
1121        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1122      - bug fix in seaice_ocean_stress (update of lab_sea required)
1123      - reduce loop boundaries to necessary minimum also in seaice_evp
1124      - go back to the old way of computing deltaC/Z as the adjoint likes that
1125        better
1126    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1127      passive tracer to an Age Tracer) + update output.txt
1128    o pkg/exf:
1129      - implement A-grid / C-grid selection for wind-stress input files.
1130      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1131      for now, in exf_bulk_largeyeager04.F only :
1132      - change implementation for case where windspeed + 2. components wind-stress
1133        are read-in. AND use rhoConstFresh to convert evap.
1134    o pkg/seaice:
1135      - use correct EXCH_UV for wind-forcing (on A-grid).
1136      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1137        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1138    o pkg/exf:
1139      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1140      EXF_INTERPOLATION:
1141      - merge global_with_exf/code version of exf_interp_read.F
1142        to the main code ;
1143      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1144        reading the file ; Important: This options needs to be defined to recover
1145        previous code.
1146        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1147      - no longer loose real*8 precision along the way when using exf_iprec=64.
1148    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1149      - change discretisation of evp-solver in order to avoid another exchange
1150        (changes lab_sea) and clean up a little
1151      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1152        help the adjoint (this also changes the results slightly)
1153      - add a few "_d 0" where they had been missing in seaice_evp.F
1154      - cleaning up: remove unused seaice_calc_rhs.F
1155    o pkg/exf: some cleaning-up:
1156      - change various "constants" into runtime parameters
1157      - cleaned-up Large&Yeager04 routine which should eventually
1158        replace exf_bulkformulae.F (changed names of S/R and CPP)
1159        and merged various ALLOW_ATM_WIND options
1160     only used with thsice pkg (in thsice_get_exf.F):
1161      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1162        which are used when useStabilityFct_overIce=TRUE (= the default)
1163      - change default values of ice & snow emissivity and scale downward LW
1164        by ice & snow emissivity.
1165    o pkg/thsice:
1166     fix few little problems, in thsice_calc_thickn.F:
1167      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1168      - melt only laterally if hIce < hThinIce (as the comments say)
1169      and in thsice_extend.F:
1170      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1171      - start to form ice as soon as the minimum ice-volume is reachable.
1172     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1173      and cpl_aim+ocn
1174    o pkg/kpp
1175     - move computation of surface related input fields to KPP into a new
1176       subroutine kpp_forcing_surf.F
1177     - remove wrong (within bi,bj loops) EXCH calls.
1178     - little cleaning (add argument myThid in last position, cvs header ...)
1179     - for now, fix conservation problem by exchanging KPPviscAz (may not
1180       be the best fix)
1181    o pkg/seaice
1182     - check for inconsistent evp parameter/cpp-flag combination
1183     - remove leftover errIO flat for obsolete name list error handling
1184    o OpenAD
1185     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1186    
1187    checkpoint59a
1188    o pkg/seaice: some parameter clarifications and a little bit of clean up
1189    o pkg/thsice: rename run-time parameters:
1190       himin       -> hIceMin
1191       himin0      -> hThinIce
1192       hihig       -> hThickIce
1193       i0          -> i0swFrac
1194       transCoef   -> bMeltCoef
1195       frac_energy -> fracMelting
1196      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1197       with default values (for now) that do not change the results.
1198      remove old version of thsice vars advection in pkg/seaice.
1199    o in FFIELDS.h:
1200      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1201      - make pLoad & sIceLoad always available (but still only used if
1202         ATMOSPHERIC_LOADING is #define).
1203    o pkg/kpp: replaced _KPP_RL with _RL
1204    o bug fixes for vertical diffusivity computations when both KPP and
1205        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1206        are no longer updating the vertical diffusivity array
1207        (passed as argument) but are (re-) setting those arrays.
1208    o pkg/seaice: fix bug in evp solver, while doing that
1209      - change (improve?) discretization of stress computations for both
1210        cgrid-lsr and evp solver
1211      - add a new routine to compute strain rates
1212      - the above changes lab_sea results
1213      - add no slip conditions for evp solver (off by default), lsr-version
1214        may follow
1215      - fix exchange for shear at Z-points (does not change lab_sea)
1216      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1217        (to force the user to pick a time step since there is not "safe" way
1218        of choosing it)
1219      - add principal stress diagnostics
1220      - rearrange fields for evp a little to avoid having to call a: too many
1221        exchanges and b: exchanges for stress trensor components which we do
1222        not have.
1223      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1224        of evp, complete rewrite for lsr case (latter is does not yet work
1225        in all cases)
1226    o pkg/kpp: add code to have mixing in shelf ice caverns
1227      - add myThid to all kpp routines (long overdue)
1228    
1229    checkpoint59
1230    o pkg/exf:
1231      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1232        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1233      - move exf header files from lower_case.h to UPPER_CASE.h ;
1234        add missing cvs Header & Name
1235      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1236      - add namelist param. selectStressGridPosition, exf_monFreq
1237      - retire many _CLIM routines, and remove data.exf_clim
1238        + params moved to data.exf
1239        + climsst, climsss now handled by exf_set_gen, i.e.
1240          climss?period=0 refers to constant field,
1241          climss?period=-12 to monthly forcing
1242      - split up namelists in data.exf
1243    o pkg/seaice:
1244      - remove seaice_exch and seaice_exch_uv
1245      - remove superfluous exchange of theta
1246      - add myThid to seaice_budget_ocean/ice
1247      - add new interface for atmospheric wind forcing (C-grid only)
1248        + new routine
1249        + two new field (taux, tauy for stress over ice)
1250        + removed one global field (DAIRN) for C-grid case only
1251    o pkg/thsise
1252      - 2nd set of modifs for thsice adjoint in conjunction with exf
1253    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1254    
1255    checkpoint58y_post
1256    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1257      vertical diffusivity, similar to that in MOM4; turned on using
1258      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1259      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1260    o Added capability for 3D specification of background vertical diffusion
1261      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1262      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1263      "data" file that contains the 3D vertical diffusivity coefficients.
1264    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1265      - add code within pkg thsice to advect & diffuse sea-ice fields
1266      similar to (and will replace) what has been added in  seaice_advdiff.F,
1267      but: - conserving Mass, Heat & Salt.
1268           - better when using non-linear advection scheme (not yet fully tested)
1269           - can also be used in atmospheric set-up (for now, only the diffusion).
1270    
1271    checkpoint58x_post
1272    o IO option for global-file compact format:
1273      - add options when generating topology (utils/exch2/matlab-topology-generator)
1274      - add I/O capability (pkg/mdsio).
1275      - adapt utils/matlab/rdmds.m to read this format.
1276      for now long-line format not yet supported by pkg/mdsio (& exch2).
1277    o shelfice: add a few diagnostics
1278    
1279    checkpoint58w_post
1280    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1281      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1282      (and replace horiVertRatio in NH code).
1283      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1284                         and tutorial_plume_on_slope (sensitive to truncation)
1285    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1286      directly to drive seaice model (C-grid only)
1287    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1288     - reintroduce computation of wind from stress,
1289     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1290       mass points to avoid tau = 0
1291     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1292    o rdmnc.m: make it work with "global" files created with gluemnc
1293    o rdmnc.m : some improvements in dealing with singleton dimension
1294      (tested on all testreport mnc output files).
1295    o genmake2: disable pkg/profiles if netcdf test fails.
1296    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1297    o move call to cal_readparms up to make calendar parameters/variable available
1298      to all packages
1299    
1300    checkpoint58v_post
1301    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1302      useDynP_inEos_Zc tested.
1303    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1304    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1305      and portions thereof.  See read_cs.txt for description and examples.
1306    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1307      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1308      following the great-circle arc between those 2 points.
1309    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1310      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1311    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1312     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1313     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1314     - still needs work (not working with some options ; efficiency to improve)
1315       and serious testing.
1316     - use this scheme for temperature & salinity in 2 advection test exp.:
1317       advect_xy & advect_xz, respectively.
1318    
1319    checkpoint58u_post
1320    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1321    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1322    o testreport: add option "-skipdir" to skip some test.
1323    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1324      momentum calculation.
1325    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1326    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1327      remove checkpoint.F and the_correction_step.F (no longer used);
1328      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1329    o add option (linFSConserveTr) to correct for tracer source/sink due to
1330      Linear Free surface
1331    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1332    o pkg/thsice: fix reading mnc-pickups
1333    
1334    checkpoint58t_post
1335    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1336    o pkg/mdsio:
1337     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1338       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1339       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1340     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1341     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1342       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1343     - new S/R (to replace MDSWRITEMETA), which allows to write more
1344       informations (variable names, time ...) to meta files.
1345     - modify rdmds.m to give back the meta file content.
1346    o pkg/diagnostics: change vertical interpolation to be safer, and more
1347       flexible (define p-levels to interpolate to in data.diagnostics);
1348      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1349       diagnostic pointer.
1350    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1351    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1352    o fix multi-category seaice:
1353     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1354       SEAICE_MULTICATEGORY
1355     - fix short wave heat flux
1356    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1357       and allow to use EVP solver. Change forward lab_sea: test both EVP
1358       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1359    o Initial check-in of lab_sea adjoint
1360      (very similar to natl_box_adjoint/code_seaice)
1361      * used C-grid and EVP solver
1362      * used KPP, GM/Redi
1363      * uses inAdExact=.TRUE.
1364      * gradient checks fail for both ADM and TLM
1365        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1366        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1367        issue is related to forward mismatch between g77 an ifort
1368    o pkg/seaice: overhaul of thermodynamics
1369     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1370     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1371     - move a few global fields out of SEAICE.h into seaice_growth.F and
1372       make them 2D (FICE/QNETO/ ...)
1373     - remove FO (it is the same as QNETO)
1374     - introduce a few local fields to avoid modifying external fields such
1375       as atemp, etc.
1376    
1377    checkpoint58s_post
1378    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1379      changed exf_set_gen.F so that
1380        genperiod=0 means input file is one time-constant field and
1381        genperiod=-12 means input file contains 12 monthly means
1382    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1383      this affects truncation error ; generate new output file for exp. which
1384      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1385        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1386        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1387        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1388        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1389        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1390    o start implementation of deep-atmosphere and anelastic formulation
1391    o verification: remove 2nd copy of input files and use script "prepare_run"
1392      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1393    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1394    o profiles: fix for multithreaded case
1395    
1396    o diagnostics: rename few diags:
1397      s/'PRESSURE'/'RCENTER '/g
1398      s/'TICE    '/'oceFreez'/g
1399      s/'TAUX    '/'oceTAUX '/g
1400      s/'TAUY    '/'oceTAUY '/g
1401      s/'SWFLUX  '/'oceQsw  '/g
1402      s/DIFx/DFxE/g
1403      s/DIFy/DFyE/g
1404      and add few ocean-forcing diagnostics:
1405      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1406    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1407      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1408      as actual snow thickness.  It now refers everywhere to effective snow
1409      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1410    
1411    checkpoint58r_post
1412    o modifications to pkg/seaice/growth.F, which change results of
1413      lab_sea experiment: fixes pertain to melting snow over open water, to
1414      masking EVAP under sea ice, and to using the correct AREA variable for
1415      computations of EVAP, PRECIP, HSNOW, and GHEFF
1416    o add ability to read bathy, salt, and theta using MNC (off by def)
1417    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1418      both are turned off by default and do no change any results
1419    o seaice advection with pkg/thsice: a step toward the use of non-linear
1420      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1421    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1422      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1423      in natl_box (affects results @ truncation level: update output.txt)
1424    o multi-threading and IO:
1425      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1426      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1427        (needed to work with SingleCpuIO): tested in all verif. exp.
1428    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1429      affects the results (but none of the verification test uses this scheme).
1430    o Adding some pkg/diagnostics capability to pkg/seaice
1431      (will certainly be subject to changes)
1432    o ctrl: adding new control variables:
1433      lwflux, lwdown, evap, snowprecip, apressure, runoff
1434    
1435    checkpoint58q_post
1436    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1437      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1438      high_res_cube configuration by 4% on Columbia.
1439    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1440      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1441      dynamical allocation (seems to work in multi-threaded).
1442    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1443      single CPU io) so that TAF does not have to see EESUPPORT.h
1444    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1445    
1446    checkpoint58p_post
1447    o obcs: stop if obcs is used with useCDscheme = .true.
1448    o shelfice:
1449     - fix a sign error so that no slip at shelfice interface works
1450     - remove stop for combination non-hydrostatic code and shelfice. That does
1451       not mean, that the results are correct, but at least they are numerically
1452       stable
1453    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1454    o added adjoint exch routined for all exch*3d* routines
1455      and updated flow directives
1456    
1457    checkpoint58o_post
1458    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1459      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1460    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1461      and clean-up reading/writing of pickup files.
1462    o fix local version of read/write pickup (NH part) in rotating_tank/code
1463    o simplify EXCH interface:
1464     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1465     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1466    o added the regrid package
1467    o shelfice:
1468     - add a simple boundary layer scheme to reduce noise
1469     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1470    
1471    checkpoint58n_post
1472    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1473       local variable (not in common block).
1474    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1475      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1476      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1477        to work with SingleCpuIO.
1478    o add "_d 0" to real constant of pkg/cfc subroutines ;
1479       update exp. cfc_exemple & tutorial_cfc_offline output files.
1480    o multi-threading and IO:
1481      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1482        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1483      - barrier before and after reading.
1484      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1485      - avoid using MDS_WRITELOCAL for LAND pkg output.
1486      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1487        common-block variables ; Allows multi-threading with master-thread IO.
1488    o change default MAX_NO_THREADS from 32 to 4 ;
1489      and stop cleanly when MAX_NO_THREADS is too small.
1490    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1491    
1492    checkpoint58m_post
1493    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1494       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1495    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1496       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1497       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1498    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1499        add MITgcm_tutorials (= code + all the tutorials)
1500    o ecco, option to compute cost for total ssh (mean+anom)
1501    o consistent with addition of ptracer and ssh in pkg/profiles
1502    o profiles: adding ptracer and ssh
1503    o testreport: change multi-test output-file name
1504      (from output.txt.{name} to output.{name}.txt)
1505    o profiles: now ok for mutli-tiles case
1506    o seaice: add 4 parameters for different advection schemes for area,
1507      (effective) seaice thickness, enthalphy, and snow height. Their default
1508      is the standard parameter SEAICEadvScheme
1509    o calc_gw:
1510     - add cosFacU in zonal viscous flux (harmonic.visc.).
1511     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1512       of tutorial_plume_on_slope.
1513    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1514    o calc_gw: true flux-form, account for horizontal grid spacing.
1515      update rotating_tank results, but not plume_on_slope (affected at
1516      truncation level, 11 digits).
1517    
1518    checkpoint58l_post
1519    o calc_gw:
1520     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1521     - remove side-drag for now (need to fix it); update plume_on_slope results.
1522     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1523    o commit code to make SST/SSS weights spatially variable
1524      (based on either variable in-situ or variable initial T/S weights)
1525    o pkg/ecco:
1526      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1527        now based on horizontally varying weights wthetaLev, wsaltLev
1528      * cost_averagesflags now returns year indices in addition to day, month
1529      * sflux balance is performed on annual basis
1530        (sflxumm, sfluxmm2, bal_sfluxmm)
1531      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1532        including separate counting and multipliers
1533    o pkg/rbcs
1534      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1535    
1536    checkpoint58k_post
1537    o testreport:
1538     - always build in dir. "build" (if not there, mkdir build instead of building
1539       & running in input)
1540     - run in dir run (if it exists), in build otherwise.
1541     - call prepare_run (if input/prepare_run exists)
1542     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1543    o pkg/exf modifications to interpolation and rotation routines for more
1544       reasonable treatment of North Pole singularity: for tracers North Pole
1545       value is set to northernmost zonal-mean value, for zonal velocity it is
1546       set to zero, and for meridional velocity it is set to northernmost value.
1547    o pkg/exf/exf_check_range.F
1548     - add tile index to diagnostics and move stop statement to the very
1549       end of the routine.
1550    o pkg/diagnostics: (diagnostics_main_init.F)
1551      define title of isomorphic variables according to the current config.
1552    o pkg/thsice with pkg/seaice dynamics:
1553    - fix domain of computation (interior only, required for exf) and do exchanges
1554    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1555    o towards a standard way of dealing with multi-threading in MONITOR
1556      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1557    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1558       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1559    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1560    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1561    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1562       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1563    o tracer advection:
1564     - clean-up and simplify calc_common_factors.F
1565     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1566       advection subroutine (but still not used within DST advection S/R)
1567    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1568    
1569    checkpoint58j_post
1570    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1571      from file (collects calls previously in FORWARD_STEP)
1572    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1573    o adjoint store dir. adjusted accordingly
1574    o genmake2
1575      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1576    
1577    checkpoint58i_post
1578    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1579      on wind stress (SEAICEstressFactor defaults to 1.)
1580    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1581      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1582    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1583      on CS-grid: no longer loosing mass.
1584    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1585    o pkg/ggl90: fix sloppy output and fix a bug
1586    o pkg/seaice: added SEAICEuseEVPpickup parameter
1587      - Set to false in order to start EVP solver with
1588        non-EVP pickup files when using SEAICEuseEVP
1589      - fix sign error in diffusion in seaice_calc_rhs
1590    
1591    checkpoint58h_post
1592    * Modifications for bottom topography control
1593      o replace hFacC by _hFacC at various places
1594      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1595      o add non-self-adjoint cg2d_nsa
1596      o update autodiff support routines
1597      o re-initialise hfac after ctrl_depth_ini
1598      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1599    * Adding verification for 5x5 box (4-layer) bottom topography control
1600    
1601    checkpoint58g_post
1602    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1603       used for mean seasonal cycle, mean diurnal cycle); add an example
1604       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1605    o pkg/ggl90:
1606      - add parameter (minimum surface kinetic energy)
1607      - fix bug (avoiding division by zero)
1608    o couple pkg/thsice to pkg/seaice:
1609      - modify advection in seaice to accomodate new scalar fields to be advected
1610      - only muliDimAdection scheme work with seaice/thsice
1611      - mapping of thsice-variables to seaice-variables, back and forth
1612      - does not break the verification experiments, but does not give the
1613        desired results either
1614    o pkg/seaice
1615      - make (default) second order advection a bit less confusing?
1616    
1617    checkpoint58f_post
1618    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1619      to pkg/seaice):
1620      - new routines thsice_map_exf and thsice_get_exf provide the interface
1621      - add an additional formal parameter to thsice_solve4temp
1622    o pkg/exf:
1623      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1624      - correct Stefan-Boltzmann constant
1625      - new parameter for longwave surface emittance
1626      - separate some stuff from exf_bulkformulae into new routines  
1627        exf_radiation, exf_wind
1628      - add new parameters and constants: longwave emissivity for ocean, ice
1629        and snow, evaporation parameters over ice
1630      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1631        either wind from stress or stress from wind
1632    o pkg/thSIce:
1633    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1634    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1635       and THSICE_CALC_THICKN
1636    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1637    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1638      to make debugging easier.
1639    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1640    o pkg/bulk_force:
1641      - clean-up comments and parameters ;
1642      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1643    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1644      generate new output for test-experiment: aim.5l_cs.thSI
1645    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1646      testreport accordingly
1647    
1648    checkpoint58e_post
1649    o SEAICE_CGRID adjoint done
1650    o R_STAR adjoint implemented.
1651      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1652      * need to sort out init. of h0facc, etc.
1653    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1654      to be able to use it in pure forward.
1655    
1656    checkpoint58d_post
1657    o upgrade simple test-experiment to tutorial example:
1658     step.1: duplicate the experiment and (step.2) will remove the old copy.
1659      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1660      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1661      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1662      tutorial_global_oce_biogeo    <- copy of dic_example
1663      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1664      tutorial_plume_on_slope       <- copy of plume_on_slope
1665      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1666      tutorial_global_oce_optim     <- empty for now (David ?)
1667      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1668     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1669    o correct a sign problem in cost_scat.F
1670    o obcs and ptracers: fix boundary conditions for advections schemes
1671      with larger stencil
1672    o thsice adjoint: start
1673    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1674      completeness
1675    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1676      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1677    o ptracers adjoint:
1678      * avoid extensive recomputatations
1679      * fix missing re-init. of gptr (missed by TAF)
1680    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1681      me to turn off the excessive output to STDOUT that this package produces
1682    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1683      and add those terms in Vector-Invariant formulation.
1684    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1685      if the control period (xx_hfluxperiod etc) is 0
1686    o in profiles pkg, clean routines and fix details
1687    o in ecco pkg, reading ssh data:
1688      fix problem in case the model does not start at iter0=0
1689    o fix mnc-pickup/restart for ptracers
1690    o new package prifiles:
1691      code to compute profile-based cost by Gael Forget
1692      (modifs in ecco, ctrl, autodiff)
1693    o Benign bug fix in initialization (spotted by M. Mazloff) of
1694      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1695    
1696    checkpoint58c_post
1697    o adjoint: finish NLFS adjoint and provide reference output in
1698      verification/global_ocean.90x40x15/results_ad_nlfs
1699    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1700      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1701      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1702      with SEAICE_CGRID defined.
1703    o move calendarDumps from "data" to "data.cal" and clean-up the code
1704      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1705    o add useEXF & useCAL flags (for now, set in hard-coded way)
1706    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1707      (were missing in NH mode, and wrong in quasihydrostatic mode).
1708      waiting for Chris updated version of calc_gw to add those CALLs.
1709    o fix bug in quasihydrostatic S/R ;
1710      add a test for this option: global_ocean.90x40x15.qshyd
1711    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1712      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1713    o add on/off flag useOffLine for package OFFLINE
1714    o seaice:
1715      - modify advection so that it works also on the C-grid
1716      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1717        problem in multi-tile runs with C-grid
1718      - add flags for clipping ice velocities and/or masking solver forcing
1719      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1720        C-grid solver
1721      - added a few comments to seaice_diffusion.F
1722      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1723        are now exclusive)
1724      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1725        required re-ordering the code a little:
1726       + make DAIRN global variable (defined in SEAICE)
1727       + move computation of the viscosities eta and zeta into a new separate
1728         routine (because I need to recompute them in seaice_ocean_stress.F)
1729    
1730    checkpoint58b_post
1731    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1732      update output.txt of exp. aim.5l_cs.thSI
1733    o various mnc cleanups and improvements:
1734      + shrink lookup tables by factor of ~4
1735      + better error reporting when running out of lookup space
1736      + able to handle longer path/file names (up to 500 chars)
1737    o adjoint:
1738      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1739      - TBD: "hidden" mom_vecinv recomp. in dynamics
1740    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1741     (allow to differentiate between forcing components using new integer flags:
1742      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1743     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1744    o ecco
1745      - enable trend removal from SSH anomaly obs.
1746    o adjoint
1747      - a fix for PmEpR when #undef EXACT_CONSERV
1748      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1749      - try to fix "hidden" recomp. in forward_step for NLFS
1750        (NLFS seems broken sometimes after I checked it in)
1751    o seaice:
1752     - add c-grid version of the dynamic solver:
1753       + three new routines that are the c-grid substitute lsr, dynsolver
1754         and ostres
1755       + put a few fields that were local to dynsolver into global common
1756         blocks, so that I can move the computation of stresses etc into
1757         seaice_lsr (saves coding but may break the adjoint).
1758     - replace more hardwired parameters by runtime parameters
1759     - add ice masks that mask the rhs of the implicit solvers where there
1760       is no ice (commented out in seaice_dynsolver, because i am not sure
1761       if this works properly), eventually this should replace the clipping
1762       of ice velocities in seaice_dynsolver to +/-40cm/s.
1763    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1764      include it only where its needed
1765    o move balancing of fluxes before the call of external_forcing_surf
1766    o seaice:
1767      - correct units of turning angles (now they are really in degrees)
1768      - move computation of GWATX/Y out of main routine into dynsolver
1769      - initialize GWATX/Y in seaice_init
1770    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1771      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1772    o seaice: add runtime flags for turning angles (default to zero)
1773    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1774      and trend from exf forcing and ctrl control adjustments
1775    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1776      (since checkpoint57x_post)
1777    o change the default rotation period to 86164.s = the Earth rotation
1778    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1779      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1780    o seaice advection: add code for choosing between the default (2nd order
1781      central differences) and multiDim advection schemes provided by
1782      pkg/generic_advdiff
1783    o seaice:
1784      - removed all references to SEAICE_GRID.h fields from
1785        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1786        (cubed-sphere configuration will change a little)
1787      - grid computations in seaice_init are obsolete now.
1788      - cleaned up code a little so that is easier to read (hopefully).
1789      - added new (better?) discretizations of default advection and diffusion
1790        (turn on with SEAICEuseFluxForm)
1791      - replace 1 in 3d global fields by kSurface in growth.F
1792      
1793    checkpoint58a_post
1794    o seaice:
1795      - bug fix in advect.F
1796    o shelfice:
1797      - separate shelfice load anomaly from pload (breaks with time
1798        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1799        Its default is 0., but it may be computed more cleverly from (unknown)
1800        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1801        done offline. A good approximation of the pressure load anomaly is
1802        necessary to avoid large initial adjustment processes underneath
1803        deep-reaching shelfice.
1804      - small fix in ISOMIP shelfice_thermodynamics
1805      - add more sophisticated thermodynamics of Hellmer (1989), this is
1806        now the default
1807      - give a few constants more intuitive names
1808    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1809      if bulk formulae are used in long integration (especially EmPmR). Turn
1810      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1811      if balancePrintMean, the imbalance that is substracted is printed to
1812      STDOUT.
1813    o fix bug (typo) in obcs_apply_eta.F
1814    o add a new package shelfice which enables us to model the circulation
1815      underneath shelf-ice with draughts of hundreds of meters.
1816     - works
1817     - to do: + include improved thermodynamics
1818              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1819                instead of new field kTopC
1820              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1821                instead of new field R_shelfIce and new code in ini_depth.F
1822                and ini_mask_etc.F?
1823              + adjust vertical mixing schemes?
1824    o seaice pkg:
1825     - add a cpp-flag to include a simple formula for a salinity dependent
1826       freezing point of sea water at the surface
1827     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1828       meridional stresses are now different (and hopefully correct)
1829    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1830       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1831       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1832    o pkg/diagnostics: add options and parameters for regional-statistics
1833       diagnostics ; define regions by reading a region-mask from a file
1834       (might add other options later)
1835    o pkg/bulk_force:
1836     - add option and parameters to use AIM surface-flux formulae.
1837     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1838       others forcing fields (defined in PARM05, parameter file "data") are loaded
1839       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1840     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1841     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1842     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1843       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1844     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1845    
1846    checkpoint58
1847    o add "--embed-source" option to genmake2 which, when the supporting
1848      tools can be compiled (as determined by genmake2) will turn on the
1849      embed_files package which then embeds the entire MITgcm source code
1850      (*.[fFhc] + Makefile) used for the build within the executable
1851      - requested by CNH but off by default
1852      - adds a paltry <9MB to the mitgcmuv executable in most cases
1853      - only writes the output when useEMBEDSRC in eedata is true
1854    o clean up 3-dim. relaxation codes:
1855      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1856      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1857      * Thanks to Tom Haine for testing!
1858    
1859    checkpoint57z_post
1860    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1861      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1862    o fix the pickup behavior for obcs in combination with ptracers
1863    o fix a bug in ptracers_external_fields_load
1864    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1865      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1866    o transfered surface NH pressure to eta field (if exactConserv).
1867    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1868         and update lab_sea output.txt file.
1869    o completing 3-dim. relaxation code: additional term
1870         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1871      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1872      * At compile time, in "EXF_OPTIONS.h" set
1873          #define  ALLOW_CLIMTEMP_RELAXATION
1874          #define  ALLOW_CLIMSALT_RELAXATION
1875      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1876          tauThetaClimRelax3Dim = 15552000.0,
1877          tauSaltClimRelax3Dim  = 15552000.0,
1878      * 3 cases:
1879          1) Use a constant-in-time 3-dim. field
1880          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1881          3) Real-time relax. to time-evolving prescribed field
1882    o Adding Laplacian-type smoothness constraint on
1883      initial and boundary (forcing) controls (ic, bc)
1884      * enable at compile-time via
1885        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1886      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1887      * Absolute scale somewhat unclear so far
1888      * no area weighting was included since no other cost term does so far
1889    
1890    checkpoint57y_post
1891    First step for a NLFS adjoint
1892    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1893    o new init. routines for calc_r_star, calc_surf_dr
1894    o still need to deal with ini_masks_etc
1895    o testreport seemed happy
1896    checkpoint57y_pre
1897    
1898    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1899    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1900    o add new offset feature to offline pkg (plus minor cleanup)
1901    o cfc fixes for final year of integration
1902    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1903      be in GCHEM_OPTIONS).
1904    
1905    checkpoint57x_post
1906    o fix testreport Pb in multiple test experiment.
1907    o cleanup our namelist syntax in verification:
1908      - make it more F95 standards compliant (some work still needed)
1909      - allows the vast majority of our tests to work with gfortran
1910    o Non-Hydrostatic:
1911     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1912     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1913    o Allow to apply AB on T,S rather than on AB(gT,gS):
1914     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1915     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1916       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1917     - need a "clever" read_pickup to restart from the other AB formulation
1918    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1919    o remove some unused variables (reduces number of compiler warnings)
1920    o adjoint
1921      * Disable useVariableViscosity for adjoint for time being
1922        (there are a number of extensive recomputations)
1923      * Initialize certain variables needed for adjoint
1924    
1925    checkpoint57w_post
1926    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1927                 fix the singleCpuIO RS version of MDSWRITEFIELD
1928       and add a WARNING if using globalFiles=T with multi-processors.
1929    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1930      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1931    o tracer advection scheme:
1932      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1933       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1934       was not very convenient).
1935      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1936       (further tests needed for the implicit DST & Flux-Limiter schemes).
1937    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1938      and sRef for convenience, handy, when you want to initialize
1939      ptracers in a large domain with a constant non-zero value. Also,
1940      untangle ptracers_init.F a little.
1941    
1942    checkpoint57v_post
1943    o change dome exp. to use variable viscosity in side-drag terms.
1944    o remove all the files from the cfc_offline test since they are now
1945      incorporated into tutorial_cfc_offline which has been producing
1946      identical results for a few days of testing
1947    o add new parameter: sideDragFactor to enable half-slip-side BC
1948      and change side-drag S/R to use viscosity from mom_calc_visc
1949      (can switch back by setting sideDragFactor=0.); affects results at
1950      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1951       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1952    o vorticity & strain are now computed without masking, to account for
1953      no-slip-side BC in variable viscosity calculation ; mask is applied
1954      anyway later on, before computing advection/coriolis terms.
1955    o modify exp4 to test new obcs support for reading from external files
1956      and for passive tracers
1957    o fix behavior of ptracers_monitor when monitor output is written to a
1958      netcdf-file; still not independent of monitor.F (writes in the same
1959      file).
1960    o change default value of tRef (put a uniform, meaningful value for ocean
1961      & atmos) and initialize sRef (was missing, as Martin mentioned).
1962    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1963      to be proportional to enstrophy dissipation length.  Thus,
1964       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1965      This is now consistent with Smagorinsky and with the manual.
1966    
1967    checkpoint57u_post
1968    o OBCS and PTRACERS: add open boundary support for passive tracers
1969      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1970        OB-values from file; this is not different from the way theta and salinity
1971        are treated
1972      - however, Orlanski-radiation conditions are not supported, and the model
1973        will stop if you use pTracers and Orlanski at the same time.
1974      - beefed up the rountine obcs_external_fields_load: now only those open
1975        boundary values are overwritten with values from files for which there
1976        are really files, otherwise the OB-fields remain untouched. This makes
1977        it possible to use different OBs at different ends of the domain (as
1978        with EXF)
1979    o reduce number of exch calls in shap_filt (s2).
1980    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1981      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1982    
1983    checkpoint57t_post
1984    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1985    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1986      same truncation, independent of the face number: affects affects several
1987      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1988    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1989      note that biharmonic viscosity + no-slip was not tested in any experiment.
1990    o fix bug in non-linear free-surf side-drag ; generate new output for
1991      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1992    o make mnc honor the writeBinaryPrec flag for most kinds of output
1993    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1994    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1995      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1996    o add brackets in multi-terms sum to get same truncation, independent of
1997      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1998      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1999    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2000      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2001      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2002      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2003      Suggested values of viscosity parameters found in mom_calc_visc.
2004      Many new viscosity diagnostics available.
2005    
2006    checkpoint57s_post
2007    o Add clearing-house for viscosity calculations, mom_calc_visc and
2008      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2009      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2010      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2011      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2012      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2013      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2014      ViscAhStrain and viscAhTension are now retired.
2015    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2016    o In response to JMC's bug report, genmake2 now ignores any soft-links
2017      that it finds in the *current* directory when searching for files.
2018      Soft-links found in any other source directories will still work as
2019      they did before.
2020    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2021      a C routine to unlimit the stack size
2022    o mnc-ify pkg/aim snapshot vars
2023    o mnc-ify pkg/land as requested by Daniel
2024    o various changes to mnc including:
2025      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2026      - output can now be grouped so that all files within a group
2027          change the ITER portion of their names in lock-step together
2028      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2029          and works with both EXCH1 and EXCH2 (but needs more testing)
2030      - writing works for all verification test cases w/ g77 on Linux
2031    
2032    checkpoint57r_post
2033    o make MNC variable initialization happen earlier
2034    o add diagnostics for (almost) each term of the momentum Eq.
2035    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2036    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2037    o remove MINIMAL_TAVE_OUTPUT option ;
2038      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2039    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2040      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2041    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2042    o add time-dependent SST, SSS control
2043    o cost terms in ecco/ modularized (new cost_generic.F)
2044    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2045    o new infrastructure for seaice model vs. obs misfits in seaice/
2046      * driver from the_main_loop.F is seaice_cost_driver.F
2047      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2048      * gradient check in Exp. 6a of natl_box_adjoint/
2049    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2050      (see README file)
2051    
2052    checkpoint57q_post
2053    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2054    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2055      - bug was reported by Jean-Michel and Ian Fenty
2056    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2057      update exp. cpl_aim+ocn output.
2058    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2059      Needed for high-res. runs with large global files
2060      to be able to limit tapelev size
2061    o Changed some tests for adjoint:
2062      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2063      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2064      * global_ocean.90x40x15/ back to default 3-level checkpointing
2065    o Modifications to enable scripted COMMON to MODULE conversion
2066      * verification/OpenAD/code/ has necessary scripts and description;
2067      * converts, compiles and runs successfully;
2068    
2069    checkpoint57p_post
2070    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2071    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2072      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2073    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2074    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2075      (was already the case for dissipation with mom_vecinv,
2076       and also the case for grad.PhiHyd when staggered-timeStep)
2077      This will allow to put dissipation out-off the AB time-stepping.
2078     Unfortunately, affects truncation error. Update output of exp. that "fails"
2079      (cg2d matching number) and leave the others for later: front_relax(10),
2080      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2081      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2082    
2083    checkpoint57o_post
2084    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2085      (2) its ready to be documented during the 20050801 DocFest
2086    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2087      for ideal_2D_oce and lab_sea on linux_ia32_g77
2088    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2089      in global1x1_tot/code_seaice_adj to access indices 32, 33
2090      (worth another tag)
2091    
2092    checkpoint57n_post
2093    o adding precip control xx_precip 32
2094    o adding swflux control xx_swflux 33
2095    o Replacing 10 forcing penalty cost routines by 1 generic.
2096    o Implementing partitioning in time-mean and variable adjustment
2097      for atmos. state.
2098    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2099    o in natl_box_adjoint:
2100      * updated exp 1 to 10
2101        (but does not have time-mean vs. variable split results yet)
2102    o updated global1x1/*_seaice_adj/
2103      to incorporate latest changes
2104    o enable useSingleCpuIO for mdsio vector routines
2105      (applies in particular to tapelev I/O)
2106    o removed inefficient K-loop in all active_file*control*.F
2107    
2108    checkpoint57m_post
2109    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2110      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2111    o pkg/exch2: filling of face-corner halo regions is optional
2112      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2113    
2114    checkpoint57l_post
2115     tag before updating tutorials (pre-release-2)
2116    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2117       for output and interpolation of input fields onto model grid)
2118    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2119       Affects results of exp. rotating_tank ; update output.txt.
2120    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2121          and taking the square quantity and/or using a fraction-weight field.
2122    o fix aim_diagnostics_init.F mate numbers.
2123    o add mnc output capability to diagnostics/diagstat and update
2124      our cvsignore files for the ACSII output generated
2125    
2126    checkpoint57k_post
2127    o lab_sea now uses diagnostics package and provides a suite of
2128      new EXF diagnostics output.
2129    
2130    checkpoint57j_post
2131    o exf
2132      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2133        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2134        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2135      * extended diagnostics output
2136        - now includes all EXF variables
2137        - hs, hl moved to common block
2138        - separate S/R for diagnostics, called after ctrl vector is added
2139        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2140        - EXFqnet contains true Qnet (i.e. includes qsw)
2141      * updated verif. lab_sea, global_with_exf
2142      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2143        to ensure that diagnostics sees a true EXFqnet
2144    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2145    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2146      several times with different frequencies.
2147    o mnc-ify the thsice package as requested by Daniel Enderton
2148      - the monitor--MNC output needs work
2149      - many attributes need to be added (most are currently blank)
2150    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2151      - many attributes need to be added (most are currently blank)
2152    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2153    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2154    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2155      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2156         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2157    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2158     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2159    
2160    checkpoint57i_post
2161    o Diagnostics package was changed: diagnostic allocation is now deactivated
2162      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2163    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2164      add 1rst Order upwind vertical Shear.
2165    o add a quick fix for A/B checkpointing in OFFLINE mode
2166    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2167      end-run around the C/Fortran linking horror in eesup/src/timers.F
2168    o added pkg/runclock: allows user to terminate run based on wall clock
2169    o added non-hydrostatic scaling parameter: nh_am2
2170    o pkg/my82: futile attempt to make results compiler-independent by adding
2171      some "_d 0", etc. no effect.
2172    o for mnc output, fill the 'T' coordinate var with myTime and create a
2173      separate 'iter' variable for iteration count
2174    o pkg/diagnostics:
2175      add new capability: output of Global/Regional & per-level statistics ;
2176      tested against monitor output (including land & thSIce) on various exp.
2177    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2178    
2179    checkpoint57h_done
2180      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2181      data.diagnostics, data.gchem, data.ptracers) is done.
2182    
2183    o pkg/diagnostics: prepare for Global/Regional statistics.
2184      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2185    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2186      and rename it: DIFFERENT_MULTIPLE
2187    
2188    checkpoint57h_post
2189    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2190    o pkg/diagnostics: change output frequency, now in seconds (instead
2191      of Nb of iterations). This requires to change data.diagnostics.
2192    checkpoint57h_pre
2193    
2194    o in mnc, let the user create the output dir if both mnc_outdir_date
2195      and mnc_outdir_num are false
2196    o add fflags() to pkg/diagnostics which allows one to specify, on a
2197      per-file basis, the file precision [default behavior is unchanged]
2198    o added diagnostics to pkg/kpp, including computation of mixed layer
2199      depth based on a temperature/density criterion
2200    o updated verification/natl_box to test the new pkg/kpp diagnostics
2201    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2202    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2203    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2204      not mnc -- this mistake was found by JMC and is now corrected
2205    
2206    checkpoint57g_post
2207    o add Adams-Bashforth 3rd Order time stepping:
2208      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2209      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2210    checkpoint57g_pre
2211    
2212    o make lambda[Theta,Salt]ClimRelax spatially varying
2213      (default remains spatially uniform constant based on tau)
2214    o added new control variables
2215      * init. uVel, vVel, etanN
2216      * lambda[Theta,Salt]ClimRelax
2217    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2218      (suggested by G. Forget)
2219    
2220    checkpoint57f_post
2221    o add parameter "baseTime" = model base time = time at iteration zero
2222      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2223      account for baseTime shift
2224    o move Coriolis arrays from PARAMS.h to GRID.h
2225    checkpoint57f_pre
2226    
2227    o mnc-ifying the seaice package
2228    o introduced an alternative length scale calculation for use in the limiting
2229      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2230    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2231    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2232      as well as grad(vort3).  Made it compatible with both approximate form
2233      for the cubed sphere and full form of these gradients.  Added flag
2234      useFullLeith to select between approximate and full form.  
2235    o add "d0" in getcon.F to reduce differences between compilers/platforms
2236      update output.txt of exp. fizhi-gridalt-hs
2237    o change port_rand funtion to allow to set the seed.
2238    o fix obscure MNC bug involving conversion between reals and integers
2239      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2240        new version is now more standards-compliant
2241    o adjoint-related modifications
2242      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2243      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2244      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2245    
2246    checkpoint57e_post
2247    o Adding eddy stress controls a la Ferreira et al.
2248    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2249    
2250    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2251      update output.txt of exp. fizhi-gridalt-hs
2252    o add more "Z" dimensions and associated coordinate vars to MNC
2253    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2254    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2255      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2256      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2257      months and years.  Requires pkg/cal.
2258    o diagnostics: add pickup functionality
2259      - off by default for backwards compatibility
2260      - current version only uses MDSIO -- MNC will be added
2261    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2262    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2263    
2264    checkpoint57d_post
2265    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2266    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2267      output from the diagnostics package
2268    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2269    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2270      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2271    o add coordinate variables to the MNC output from the diagnostics package
2272    o change MNC-flags default value: true when useMNC=TRUE
2273    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2274      the ability (off by default) to read the grid information using MNC
2275    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2276    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2277    o do snap-shot diagnostics at the middle of the time-interval (instead of
2278      at the end).
2279    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2280      new test for AIM with thSIce + slab-ocean
2281    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2282    o move state variable diagnostics to the beginning of the time step ;
2283      (note: still needs some work specially for snap-shot diagnostics)
2284      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2285    
2286    checkpoint57c_post
2287    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2288    o generate new output.txt files on faulks with g77 & the new -ieee option
2289    checkpoint57c_pre
2290    
2291    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2292      update output.txt of exp. global_ocean.90x40x15
2293    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2294      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2295    o add saltFlux(+File) forcing capability with periodicExternalForcing
2296    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2297    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2298    o improvements for the MNC output from DIAGNOSTICS:
2299      - correct handling of the unlimitied dimension
2300      - all dims now have associated coordinate variables
2301      - variables located at U, V, and Corner ("Z") points are now written
2302        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2303        *all* data points are output
2304    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2305    o added pkg/seaice/seaice_monitor.F
2306    o mdsio_readfield.F can now read files visible only to master MPI process.
2307    o pkg/seaice: some test code for ice-modified ocean stress
2308    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2309      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2310      spurious negative numbers for precipitation and humidity.  Will cause
2311      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2312    o pkg/ctrl/
2313      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2314        May be enabled via doPackDiag
2315      *  introduce z-scaling of
2316         + gradient (doZscalePack) and
2317         + control (doZscaleUnpack)
2318    o pkg/mdsio/
2319      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2320      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2321    
2322    checkpoint57b_post
2323    o simplify options in diagnostics_fill arguments (remove weird combinations)
2324    o fix MNC coordinate variables so that they now contain per-face index
2325      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2326      general, EXCH2 grids are only aligned to a "local" coordinate system
2327    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2328    o Implement instantaneous output within pkg diagnostics:
2329      setting a negative frequency in data.diagnostics produces
2330     "snap-shot" output (as opposed to time-average if freq > 0)
2331    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2332      NOTE: change ptracer diagnostics name: use 2 characters to work with
2333            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2334    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2335      becomes the coordinate variable for the 'T' dimension
2336    o add CF-style coordinate variables to MNC
2337      - just a first cut:  numbers are meaningless on the cubesphere and
2338        missing along the T axis but otherwise it works!
2339    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2340    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2341    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2342      this is based directly on what the model compute, so that the content of
2343      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2344    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2345    o clean up build options files for SunOS, in particular
2346      - remove -traditional from xmakedepend
2347      - change -xarch=v9 to -xarch=native for f77
2348      - restore use of make (not gmake)
2349      - add CC=gcc if using g77
2350    o changes per discussion of AM, JMC, & EH3 today:
2351      - move redundant "grid" variables out of "state" -- in preparation of
2352        creating proper CF-style coordinate variables and in recognition
2353        that any/all grid variables can be easily copied (eg. w/NCO) from
2354        the grid files into any of the other NetCDF files
2355      - *always* output grid variables with MDSIO (this will eventually be
2356        changed)
2357      - output MNC grid file if useMNC is true
2358    o every instance of _END_MASTER() has been found and replaced with
2359      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2360      preprocessors
2361    o re-arrange diagnostics pkg initialisation:
2362     - allow each package to extend the available diagnostics list
2363     - add some checking and fix small problems (multi-threaded, ...)
2364     - new S/R diagnostics_fill (replace fill_diagnostics):
2365       look through the short list of active diag. (instead of the long list)
2366       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2367    
2368    checkpoint57a_post
2369    o this set of changes restores TAMC compatibility
2370      tested for global_ocean.90x40x15 adjoint on trough
2371      (what a pain)
2372    
2373    checkpoint57a_pre
2374    o some modifs in tools/build_options for sunos
2375    o call ctrl_pack for ctrl at end for optimcycle=0
2376    
2377    checkpoint57
2378    o add horizontal bi-harmonic viscosity for vertical velocity
2379      - new parameter viscA4W (defaults to viscA4)
2380      - affects only non-hydrostatic code
2381      - to be done: no-slip lateral boundary conditions
2382    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2383    o implement Implicit Vertical advection for pTracers
2384    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2385      (implemented also for implicit vertical diffusion & advection)
2386    o OBCS: extend application of tracer open boundary conditions
2387      to a strip beyond the boundary of width Olx/Oly
2388    o add call monitor to TAF set of required calls (flow directives)
2389      and include in natl_box_adjoint
2390    o untangle a few ifdefs related to cost, ctrl, autodiff
2391      untangel a few ALLOW_ECCO_OPTIMIZATION
2392    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2393      (theta2, salt2 in ecco_cost_weights)
2394    
2395    checkpoint56c_post
2396    o OBCS as control variables
2397      - update ctrl_ad_diff.list, obcs_ad_diff.list
2398      - remove balance of obcs controls from default
2399      - fix index bug nobcs in ctrl_init
2400      - fix dummy fields filen in ctrl_pack
2401      - add dummy weights for obcs
2402    o lsopt: comment out fort.94 output
2403    o optim:
2404      - remove unnecessary header files
2405      - adjusted namelists
2406      - add xerbla.F to Makefile
2407    o exf:
2408      - multiple modifications of exf_check_range
2409      - unit change in exf_init_runoff from [m/year] to [m/s]
2410    o mdsio:
2411      - i/o-vector change debugLevel from debLevA to debLevB
2412    
2413    checkpoint56b_post
2414    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
2415      is called from DO_THE_MODEL_IO
2416      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
2417      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
2418      - clean up PTRACERS_WRITE_TIMEAVE a little
2419    o add another verification experiment that tests both the cfc-pkg and
2420      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
2421      reactive tendencies treated inline with regular timestepping
2422    o testreport previously did a lousy job of comparing small numbers, so
2423      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
2424      implemented in the little c-progam tmp_cmpnum.c which is embedded in
2425      testreport.
2426    o ptracers_monitor: bug fix for MPI
2427    
2428    checkpoint56a_post
2429    o GCHEM: finish reorganizating the package
2430      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
2431        (introduces another 3D-array for each passive tracer, but only if
2432        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
2433        gchemTendency is not needed because the timestep is done separately)
2434      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
2435      - GCHEM is now---more or less cleanly---separate from PTRACERS
2436      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
2437        so clear to me how that should be done in a general way.
2438    o CFC: improve formatting of output in CFC_ATMOS
2439    o PTRACERS:
2440      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
2441        that ALL experiments with ptracers enable can be checked. This makes
2442        GCHEM_MONITOR obsolete.
2443      - include a runtime parameter PTRACERS_monitorFreq that defaults to
2444        monitorFreq
2445      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
2446    o add PTRACERS (PTR0[1-5]) to testreport output
2447    o exf_check_range:
2448      * default changed to .TRUE.
2449      * will check values for niter0 if debLevA, every timestep if debLevB
2450      * STOP in exf_check_range if 'out of range'
2451      * range chosen generous to allow for potential extema
2452      TBD: a version with stricter range
2453           permitted range would be runtime parameters
2454    o GMredi:
2455      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
2456      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
2457      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
2458    o GCHEM:
2459      - move call to GCHEM_FORCING_SEP, so that it is now called before
2460        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
2461      - introduced a useGCHEM runtime flag and applied it everywhere.
2462      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
2463        this flag is now only visible within GCHEM-pkg routines.
2464      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
2465        be replaced by a 3D array that is computed before thermodynamics; for
2466        this, the tracer ID iTracer had to be included into the parameter list
2467        of ptracers_forcing
2468      - set up forward_step to call gchem_forcing, that will replace
2469        gchem_forcing_int in ptracers_forcing
2470      - cleaning up
2471    o small cleaning of exch2: remove files that are also in eesupp/src
2472    
2473    checkpoint56
2474    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
2475    o mnc: cleanup "full" files--fixes out-of-memory problem
2476    o ECCO-GODAE
2477      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
2478      * fully merged and updated from SIO code
2479        windstress sign change affects
2480        - exf_inscal_[u/v]stress
2481        - sign of xx_tau[u/v] adjustments
2482        - signs in cost_scat
2483      * ctrl_get_gen: avoid update of tau[u/v] for first few days
2484      * natl_box_adjoint updated and compressed
2485      * 2-level checkpoint switch added
2486        (tested in EXP. 1 of natl_box_adjoint)
2487      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
2488    o SVD
2489      * first complete, non-hacked version for SVD calculations
2490      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
2491        performed via direct access files admtlm_vector.it????
2492        (via ctrl_[un]pack)
2493      * optimcycle is used for ARPACK iteration counter
2494        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
2495      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
2496        and add linear transforms where necessary
2497      * controls are initial/final SST, SSS (can be extended; need to check
2498        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
2499    o mdsio: filename info to both stderr, stdout
2500    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
2501      from sign change
2502    
2503    checkpoint55j_post
2504    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
2505      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2506    o add consistent build directories and .cvsignore files to verification
2507    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
2508    o make all subroutines 30 or less characters in length for certain older
2509      compilers to work (a thorough search only turns up two routines in
2510      pkg/ptracers)
2511    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
2512      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
2513    
2514    checkpoint55i_post
2515    o change arrays for total vertical diffusivity (2.D if explicit,
2516      3.D if implicit) ; each ptracer uses its own background value.
2517    o added mnc/NetCDF output capability to ocn_compon_interf
2518      - added bits to verification/cpl_aim+ocn so that it can run on
2519        ITRDA and other clusters without the mpirun "-wd" option
2520    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
2521      configuration
2522    o give MNC the ability to create additional files rather than
2523      exceeding a specified file size limit "MNC_MAX_FILESIZE"
2524      - the default is just less than 2GB which is a practical limit
2525        on many systems
2526    o Compute the non-local term using either KPP vertical diffusivity (=default)
2527       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
2528    
2529    checkpoint55h_post
2530    o add verification test "vermix"
2531    o remove all the *_ioinc flags and replace with the single global
2532      outputTypesInclusive flag
2533    o allow to set a vertical profile of vertical diffusivity for T & S
2534    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
2535    o useMNC moved from data.mnc to data.pkg
2536    
2537    checkpoint55g_post
2538    o Renaming carbon AD experiments to comply with testreport conventions
2539    o Updating adjoint of Held-Suarez hs94.1x64x5
2540    o Fixing directives for non-ECCO forward_step, after ECCO directives
2541      have been fixed to avoid recomp. of do_oceanic_phys
2542      Works well for global_ocean.90x40x15,
2543      but recomp. issue remains for carbon
2544    o Updating adjoint output for natl_box_adjoint after
2545      pkg/ecco has been modified (see taga c55d_post)
2546    
2547    checkpoint55f_post
2548    o rename to timeave_init_fixed
2549    
2550    checkpoint55e_post
2551    o some delicate re-shuffle of store directives to avoid one
2552      extra call of do_oceanic_physics
2553      affects ecco_the_main_loop.F, do_oceanic_physics.F
2554      checkpoint_lev1_directives.h
2555    o NB: this may break global_ocean adjoint temporarily,
2556      but it is clear how to fix it. Will do later, need this now.
2557    
2558    checkpoint55d_post
2559    o ECCO specific cost function terms (up-to-date with 1x1 runs)
2560    o ecco_cost_weights is modified to 1x1 runs
2561    o modifs to allow observations to be read in as
2562      single file or yearly files
2563    o enable to read exf forcing fields as either
2564      single file or yearly files (flag useExfYearlyFields)
2565    checkpoint55d_pre
2566    
2567    o switch between 2-level and 3-level checkpointing
2568    o add ability of MNC to write local and "partial" (eg. 2D slices where
2569      the full 3D field is never actually stored) arrays to NetCDF files
2570      with the correct (that is, the complete multi-dimensional) set of
2571      array indicies
2572      - used in mom_vecinv() to write the diagFreq output
2573      - tested (demonstrated) in verification/aim.5l_cs
2574    o further mnc-ification
2575      - add verification/lab_sea to the list with mnc setups
2576      - fix undefined mnc v-names in cd_code
2577      - add kpp to mnc output (both snapshot and timeave)
2578    o non-hydrostatic code
2579      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
2580        in calc_gw.F
2581      - defaults to viscAh
2582      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
2583        friction or Leith) in non-hydrostatic mode, as long as there is
2584        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
2585    o pkg/cost
2586      extend simple cost functions to treat time mean quantities
2587      (T,U,V) via cost_accumulate_state from cost_tile
2588    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
2589        be 2 times larger than the minimum size the advection scheme requires.
2590        now get a perfect conservation of salt in advect_cs test-exp (updated)
2591    o GGL90 (Gaspar's TKE mixed layer)
2592      - add horizontal diffusion of TKE, requires exchanges in
2593        do_fields_blocking_exchanges, horizontal diffusivity is zero by
2594        default. In OPA there is no horizontal diffusion of TKE but the
2595        mixing coefficients are computed from a horizontal average of TKE of
2596        6 points or so. I think that diffusion has a little more physical
2597        justification.
2598      - clean up ggl90_calc in the hope of reducing memory usage (this hope
2599        was in vain)
2600      - mask tke-variable in ggl90_init
2601    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
2602    o fix biharmonic diffusion on CS-grid.
2603    o more obcs stuff
2604      - added obcs_external_fields_load as an alternative to the EXF-pkg option
2605        for reading boundary values. This routine is called from
2606        obcs_prescribe_read
2607      - updated obcs_check
2608      - changed sponge layer relaxation parameter units for days to seconds
2609      - turned off sponge layer by default
2610      - changed argument list of OBCS_CALC to myTime+deltaTclock
2611      - fixed about 35 bugs in obcs_external_fields_load
2612    
2613    checkpoint55c_post
2614    o obcs stuff
2615      - new runtime flags useOBCSprescribe, useOBCSbalance
2616      - re-arranged obcs_calc
2617      - moved exf_getobcs to obcs_prescibe_read
2618        obcs_prescibe_read is called after ORLANSKI stuff
2619        and independent of it (executable can contain all).
2620      - updated obcs_check
2621      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
2622        These may be necessary only if tangential velocities are
2623        prescribed at OB, not sure, needs testing.
2624    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
2625      which simplifies the calls and passes the ifc check-bounds test
2626    
2627    checkpoint55b_post
2628    o add a 2D scalar, Z location, exchange_2 routine.
2629    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
2630      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
2631      affects advect_cs results (for the wrong reason): update output.txt
2632    o use a more standard discretization for biharmonic viscosity ;
2633     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2634      affects results of dome set-up: update output.txt
2635    o fix gad_advection.F (CubedSphere part), back to version 1.23
2636    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2637    
2638    checkpoint55a_post
2639    o merged code to
2640      * prescribe/read time-dependent open boundaries
2641        (works in conjunction with exf, cal)
2642      * sponge layer code for open boundaries
2643      * each boundary N/S/E/W now has its own CPP option
2644        (healthy for the adjoint)
2645    
2646    checkpoint55
2647    o up-to-date adjoint of previous breaks
2648      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2649      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2650      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2651      - carbon: * remove tr1-related adjoint verification
2652                * add ptracer as control variable
2653    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2654      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2655    
2656    checkpoint54f_post
2657    o in verification/carbin/ remove experiment related to
2658      ALLOW_PASSIVE_TRACER (array tr1 etc)
2659      code_ad/ input_ad/ results_ad
2660    
2661    o add two new packages
2662      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2663        + subject to optimization (memory)
2664      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2665        + subject to reordering (many GOTOs in the original code)
2666        + so far opps is called for every (i,j) point, and then operates in
2667          the vertical; one may want to reorder the scheme in order operate in
2668          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2669          fields)
2670    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2671      - all verification tests compile and run with linux_ia32_g77
2672      - defaults are compatible with current input files--nothing
2673        should change if you were not previously using MNC
2674      - MNC output has been added in numerous places (eg. timeave)
2675        but there are still a few writes not yet do-able with MNC
2676        (this is in progress)
2677      - flags now allow for either/or/both use of MDSIO and MNC and
2678        documentation will soon follow
2679      - numerous small formatting cleanups for ProTeX
2680    o add version info (via BUILD_INFO.h) to MNC and stdout
2681    
2682    checkpoint54e_post
2683    o add two new packages
2684      - pp81 (Packanowski and Philander, 1981), Richardson number and
2685        stratification dependent mixing
2686      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2687      - these scheme operate in a similar manner as KPP (without ghat, of
2688        course), however there is only one diffusivity that is used for both
2689        temperature and salinity (and passive tracers)
2690    o add offline package
2691    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2692      provided by Stephanie Dutkiewicz
2693    o genmake2: add ability to search for C compilers and cleanup test output
2694      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2695    
2696    checkpoint54d_post
2697    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2698    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2699      leading to additional shift by 5 days each year of integration
2700       (i.e. leading to considerable offset over the years)
2701    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2702    o start with no AB and no initial filtering (staggerTimeStep):
2703      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2704    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2705      (external loading & cpl import/export stay in forward_step.F)
2706    o update coupling interface to work with new staggerTimeStep
2707    o change MDSIO ptracers_pickup.
2708    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2709    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2710    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2711    
2712    checkpoint54c_post
2713    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2714      this affects (truncation error) output.txt of test-exp:
2715       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2716    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2717    o change Qnet to always be the net heat flux, (+upward).
2718      affects (truncation error) output of natl_box exp.: updated
2719    o define the max number of passive tracers in PTRACERS_SIZE.h
2720    o start to test mnc routinely in exp0
2721    o add sea-ice loading (sIceLoad) as a new forcing field.
2722    
2723    checkpoint54b_post
2724    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2725       impressive on Altix and Opteron systems)
2726    o diagnostics can now write NetCDF files through the mnc package
2727    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2728    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2729    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2730      affects (truncation error) output of lab_sea & natl_box exp.: updated
2731    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2732    
2733    checkpoint54a_post
2734    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2735    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2736    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2737    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2738      + internal_wave (shift in writing cg2d_ini_res)
2739    checkpoint54a_pre
2740    
2741    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2742      - modified verification/lab_sea and natl_box_adjoint accordingly
2743    
2744    checkpoint54
2745    checkpoint53g_post
2746    o prepare splitting of thermodynamics: store convect.counter in common block
2747    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2748      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2749    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2750    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2751    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2752    o restore adjointability
2753    
2754    checkpoint53f_post
2755    o modifications that affect AIM experiment results (update output.txt):
2756      - no advection of S at top interface Nr (pkg/generic_advdiff)
2757      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2758    o AIM pkg:
2759      - include stability function into surf.Flux derivative relative to Tsurf
2760      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2761    
2762    checkpoint53e_post
2763    o merged cylindrical coord configuration
2764    o added rotating_tank experiment
2765    checkpoint53e_pre
2766    
2767    checkpoint53d_post
2768    o faulks upgraded: re-generate output.txt that have changed:
2769       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2770    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2771    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2772    o added Sadourny discretization of Coriolis
2773      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2774      - re-enabled use of omega3 (useAbsVorticity)
2775    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2776      vector-invariant equations
2777      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2778    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2779      hopefully without new bugs
2780      - still to do: biharmonic friction for non-hydrostatic w
2781    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2782    o regenerated output for global_ocean_ebm (using -ieee)
2783    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2784      of mom_common/
2785      - simple re-arrangement of instructions within computing loop
2786    checkpoint53d_pre
2787    
2788    checkpoint53c_post
2789    o new version of coupler for AIM+thSIce and Ocean models
2790     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2791     - land: change Evaporation of snow
2792     - aim with thSIce: fix bug in snow-precip.
2793    o changes to calc_gw.F
2794     - bug fix for w^2 term near the bottom boundary
2795     - (hopefully) improve the lateral slip boundary condtions for use with
2796        partial/looped cells
2797      - because the bug fix changes two verification experiments anyway (exp5
2798        and plume on slope), change the lateral boundary condition from half slip
2799        to the value of no_slip_sides
2800    o ebm package wasnt quite up to the parallel task. Fixed that.
2801    o Adjoint of EBM package + verification
2802      * TLM OK
2803      * ADM not sufficient accuracy yet (needs further testing)
2804    
2805    checkpoint53b_post
2806    o Commiting new energy balance model to repository
2807      * package is pkg/ebm
2808      * verif. is verification/global_ocean_ebm
2809      * references are in ebm_driver.F
2810    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2811    C        Global thermohaline circulation. Part I:
2812    C        Sensitivity to atmospheric moisture transport.
2813    C        J. Climate 12(1), 71-82
2814    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2815    C        Global thermohaline circulation. Part II:
2816    C        Sensitivity with interactive transport.
2817    C        J. Climate 12(1), 83-91
2818    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2819    C        Destabilization of the thermohaline circulation
2820    C        by atmospheric eddy transports.
2821    C        J. Climate 7(12), 1870-1882
2822    o Will need long integration testing.
2823    checkpoint53b_pre
2824    
2825    o created pkg/mom_common in preparation for variable viscosity code
2826    o renamed and split ini_mnc_io
2827    o pkg/land: only liquid water can diffuse or run-off
2828    o AIM using land: soil wetness availability account for snow
2829    o added printMapIncludesZeros to EEPARMS namelist
2830    
2831    checkpoint53a_post
2832    o restore TAMC compatiility for exf_constants.h
2833      (no usage of _d in .h)
2834    o Additional storing in KPP in an attempt to fix
2835      TAMC problem with adjoint of KPP code.
2836      (no success...)
2837      Identical code works fine with TAF.
2838    o Fixed verification/natl_box_adjoint experiments.
2839      Initial conditions for Experiments 4 and 5 are now
2840      set to "SEAICE_initialHEFF=0", which is more reasonable,
2841      and hence gives results closer to that of Experiment 2.
2842      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2843    
2844    checkpoint53
2845    o stable checkpoint with up to date adjoint
2846      TLM tests only run for 1st grdchk at the moment. Its unclear if
2847      this is a code problem or a problem with resetting code for g_
2848      variables that is being autogenerated wrong.
2849      Otherwise:
2850       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2851       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2852         are both still in chaos following their security messes.
2853    
2854    checkpoint52n_post
2855    o various build (mostly genmake2) changes including:
2856      - ability to build/run more easily within Cygwin and MacOS X
2857      - more complicated Makefiles with a stronger dependence on Gnu Make
2858    o pkg/seaice modifications
2859      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2860        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2861        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2862      - changed proxy for geostrophic velocity and updated
2863        verification/lab_sea/results/* accordingly
2864      - removed ADI dynamic solver from pkg/seaice
2865      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2866        they caused a segmentation fault under certain circumstances
2867      - removed unused field WATR
2868    o bug fix in exf-package:
2869      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2870         now reflect that.
2871    o small fixes in the cal-package:
2872      - set reference date to first of January for the 'model'-calendar
2873      - failing of cal_CheckDate in cal_FullDate now actually results in a
2874        warning
2875    o small modifications in exf-package to increase flexibility:
2876      - change climtempfreeze from a constant to a runtime parameter that
2877        is specified in data.exf_clim (default = -1.9)
2878      - introduce runtime parameter windstressmax (default = 2.0) that is
2879        specified in data.exf
2880    o fix in pkg/thsice:
2881      - update Evap (Tsf changes) to be consistent with Latent heat flux
2882      - maintain snow precipitation unchanged (even if Tsf >=0).
2883     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2884    
2885    checkpoint52m_post
2886    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2887      this does not change any of the results, because myIter=0 in swfrac always
2888      lead to jwtype=2 (the default anyway), but the call makes little sense
2889      as a default
2890    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2891    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2892      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2893    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2894    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2895    o extending useSingleCpuIO option to work with new exch2 I/O format
2896      - old-style, missing-tile I/O is still accessible by defining CPP
2897        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2898    o monitor package can write to NetCDF files and/or STDOUT
2899    o fix re-definition bug in MNC_GRID_INIT_ALL()
2900    o doc/api_reference added
2901      - a framework for building an API Reference Manual using all
2902        the "protex" comments embedded in the code
2903      - see pkg/generic_advdiff, pkg/mnc for examples
2904    o MNC:
2905      - make myThid the last argument for all subroutines
2906      - new default for the grid files: NO halos
2907      - add useMNC and other run-time flags
2908      - separate per-file-group handling of the unlimited dimension
2909      - early initialization of MNC w/ flags read at the eeboot stage
2910        and lookup tables set in initialize_fixed
2911      - write all MNC output to a freshly-created directory
2912    o thermodynamics sea-ice (thsice) is now tested with testreport.
2913    o test exp. advect_cs: use the standard cs32 grid ; update output.
2914    o Added functionality to grdchk:
2915      pick global i,j,k position (or nearest wet) where to perform check.
2916    
2917    checkpoint52l_post
2918    o new land formulation:
2919      a) use ground enthalpy as prognostic variable to ensure exact
2920         energy conservation.
2921      b) account for water temperature and for latent heat of freezing
2922         in all processes (rain, run-off, ground storage)
2923      c) compute surface and ground temperature implicitly.
2924    o aim_v23 modification for new land model:
2925      a) Treat separately land / ocean / sea-ice surface fluxes
2926         to allow implicit computation of land & sea-ice surface temp.
2927      b) add snow precipitation.
2928    checkpoint52l_pre
2929    
2930    o fix problem (when 1 tile is empty) in min/max monitor.
2931    o fix bug in timeAve (u,vZetatave in common block)
2932    o no restoring terms under ice for pkg/seaice
2933    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2934    o bug fix for pkg/seaice pickups
2935    o change MNC call locations and add coordinate attributes
2936    o mask vorticity at the corner ; affects global_ocean.cs output
2937    o fix ini_curvilinear_grid ; test CS experiments with mpi
2938    o aim.5l_cs: modify sea-ice fraction input file ; update output
2939    o exf: Adding simple range check routine for exf fields after read
2940    
2941    checkpoint52k_post
2942    o removed top-level directory "diags"
2943      - we migrated these functions to pkg/timeave a long time ago
2944    o fixed bug introduced in pkg/monitor
2945    o accuracy ctrlprec = 32 insuffient for gradient checks using
2946      averaged fields (I/O via cost_averages)
2947      -> use ctrl.h in active_file*.F to control I/O precision.
2948    o paramter list of CALL ADTHE_MAIN_LOOP
2949    o added initial do_the_model_io to ecco
2950    o set all ...Freq to zero after cost_final
2951      taveFreq, dumpFreq, pChkptFreq
2952    o MAIN and ECCO differentiability restored
2953    
2954    checkpoint52j_post
2955    o fix nchklev in tamc.h for global_ocean...
2956    o Bringing flow and store directives up-to-date
2957    o Really weird thing!
2958      call do_the_model_io from the_main_loop with parameters
2959      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2960      TAF places a faulty re-call of initialise_varia
2961      after cost_final call which should not be there!
2962    checkpoint52j_pre
2963    
2964    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2965      error messages
2966    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2967    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2968      debug output
2969    o modfied mdsio_writefield.F to handle non-global files under exch2
2970    o update AIM Cubed-Sphere exp (aim.5l_cs):
2971      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2972    o update AIM Equatorial Channel exp:
2973      use standard aim_v23 pkg and change the SST fields to be more realistic.
2974    o globalFile now works with exch2
2975    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2976      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2977    o limit timeave output for hi-res integrations
2978    
2979    checkpoint52i_post
2980    o removed CPP_EEOPTIONS.h from verification/*/code
2981    o updated the tiling for global_ocean_pressure
2982    checkpoint52i_pre
2983    
2984    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2985      the old pkg/aim).
2986    
2987    checkpoint52h_pre
2988    o shortened offending lines in exch2_send_rx?.template
2989    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2990    o genmake2: add build & execute test for NetCDF code
2991    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2992      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2993    o added useSingleCPUIO flag to monitor.F and mon_out.F
2994    o added temporary hack for sea-ice dynamics on the cube:
2995      metric terms are ignored and it is assumed that
2996      there is no sea-ice on cube faces 1, 2, 4, and 5.
2997    
2998    checkpoint52f_post
2999    o added exch2 cube routines to pkg/exch2
3000    o modified hs94.cs-32x32x5 to use it
3001    o added new grid files to hs94.cs-32x32x5
3002    checkpoint52f_pre
3003    
3004    checkpoint52e_post
3005    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
3006      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
3007    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
3008      to work with implicit vertical advection and AB ;
3009    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
3010    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
3011     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
3012    checkpoint52e_pre
3013    
3014    o fix bug in impldiff when Nr=1 or Nr=2.
3015    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
3016    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
3017    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
3018      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
3019    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
3020    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
3021    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
3022    
3023    checkpoint52d_post
3024    o re-tiled many expts to allow comparison in multi-processor mode
3025      - updated output accordingly
3026      - changed hs94.128x64x5 to use intial T from file rather than use the
3027        random number generator
3028    o add infrastructure in model routines for fizhi and gridalt packages
3029    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
3030    o changes to permit hi-res, cubed-sphere, configuration
3031      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
3032      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
3033      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
3034        of surface winds for the cube
3035      (A verification experiment, based on global_ocean.cs32x15, but with
3036       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
3037       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
3038       complete with example surface forcing files and matlab scripts to look
3039       at the output and compare it with that of global_ocean.cs32x15.)
3040    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
3041       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
3042       to conform to the common rule.
3043    o check-in the first version of the coupler + interfaces for multi-components
3044       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
3045       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
3046       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
3047       - ocean and atmos. share the same horizontal grid (no interpolation).
3048       - exchanges between component and coupler is done in forward_step
3049    o new verification experiment, cpl_aim+ocn:
3050       coupled ocean - AIM atmosphere on cs32 grid.
3051    
3052    checkpoint52d_pre
3053    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
3054    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
3055    
3056    checkpoint52c_post
3057    o Fixing OPTIONS files for use of exf:
3058      - ALLOW_ECCO not needed
3059      - ECCO_CPPOPTIONS.h should not be included from
3060        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
3061        as has been the case in the past
3062      - All cal/exf related options are currently set in
3063        single header file. Should remain so until we
3064        agree on a consistent new policy.
3065    o Removed all CPP options for cal package.
3066      cal has no more CPP options.
3067    o modified STOREs in GAD_ADVECTION
3068    o corrected key comp. for passkey
3069    
3070    checkpoint52b_post
3071    o new version: "thsice" of thermodynamic sea-ice pkg:
3072     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
3073     - modify fluxes but do not change theta directly;
3074     - light cleaning of bulk_force pkg (still needed with thsice).
3075     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
3076       + output_thsice.txt to test thsice & bulk_force pkgs.
3077    o put back grid & coriolis monitor output.
3078    checkpoint52b_pre
3079    
3080    o call "do_the_model_io" at the beginning (=> dump initial state)
3081    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
3082    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
3083      (need info on NUMBER_OF_PTRACERS)
3084    o missing PTRACERS headers in some routines
3085    o default tamc.h in pkg/autodiff supposed to crash
3086      to ensure proper customization
3087    
3088    checkpoint52a_post
3089    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
3090      - moved surfaceTendencyTice from pkg/seaice to main code
3091      - subroutine FREEZE_SURFACE now limits only surface temperature
3092        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
3093        => new output.txt for global_ocean.cs32x15 & global_with_exf
3094      - keep the old version of FREEZE for backward compatibility;
3095        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
3096      - corresponding modifs for TAF directives
3097    o added surface flux output variables to TIMEAVE_STATVARS
3098    o time-averaged output for pkg/ptracers
3099    o fix problem with ECCO-related divided adjoint
3100      snapshot file was missing some ad-variables,
3101      but no warning issued by TAF
3102    
3103    checkpoint52a_pre
3104    o some bug fixes for #undef REAL4_IS_SLOW
3105    
3106    checkpoint52 = ecco_c52_e35
3107    o after testing adjoints of checkpoint51u_post
3108    
3109    checkpoint51u_post
3110    o this is the post-merge tag of the ecco-branch
3111      (needs another clean checkout and re-testing)
3112    o various natl_box_adjoint configs and results
3113      but no input fields
3114    o obcs adjoint not yet merged!
3115    o adding ECCO global 1x1 and 2x2 degree configs
3116    o updated/extended some store directives for seaice
3117    o pkg/ecco now containes ecco-specific part of cost function
3118    o top level routines the_main_loop, forward_step
3119      supersede those in model/src/
3120      previous input data.cost now in data.ecco
3121      (new namelist ecco_cost_nml)
3122    o in ctrl/ cleaned some cross-dependencies and updated CPP options
3123    
3124    checkpoint51t_post
3125    o this is the pre-merge tag of the ecco-branch
3126    
3127    checkpoint51s_post
3128    o cleanup: removed various obsolete #define-s
3129    o pkg/grdchk
3130      - renamed 'ph-grd 3' to 'grad-res'
3131      - merged from ecco-branch
3132        (remaining bug fixes for obcs gradient checks)
3133      - additional high-precision output for testreport
3134        (grep for 'precision_grdchk_result')
3135    
3136    checkpoint51r_post
3137    o cleaned up or removed CPP_OPTIONS.h files
3138    o updated results for some of the tests to reflect the new
3139      optfiles (-ieee: -O0 instead of -O3)
3140    
3141    checkpoint51q_post
3142    o cd_code:
3143      - moved cd_scheme.F -> cd_code_scheme.F
3144      - separate read_checkpoint from cd_code_ini_vars.F
3145      - separated cd_code part from write_checkpoint
3146      - updated AD_SOURCE, generated .flow
3147      - added CD_CODE_VARS.h to the_main_loop
3148      - Moving cd_code specific store dir.s to pkg/cd_code
3149    o ctrl package totally restructured
3150      - pack/unpack now optional and decoupled from
3151        xx_/adxx_ I/O
3152      - ctrl_pack/unpack cleaned
3153        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
3154      - confined inclusion of AD_CONFIG.h to where necessary.
3155    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
3156    
3157    checkpoint51p_post
3158    o create initial cd_code package
3159      - WARNING: the initialization of fields within packages
3160        is broken because INI_FIELDS (where READ_CHECKPOINT is
3161        called) is called *before* PACKAGES_INIT_VARIABLES.
3162        This seems to be backwards since
3163        1) its important to initially zero the entire field including
3164           the "halo" region
3165        2) zeroing needs to be done *before* reading pickup info
3166           and the pickup call might or might not happen in any
3167           particular run
3168      - this needs an overhaul for R2
3169    o cleanup verification/*/code/GMREDI_OPTIONS.h
3170    o cleanup testreport
3171    
3172    checkpoint51o_post
3173    o bringing AD-related verif's up to date with genmake2
3174      - carbon/
3175      - global_ocean.90x40x15/
3176      - hs.94.1x64x5/
3177      - (front_relax/ )
3178    o (more) consistent directory structure for AD-related verif.'s
3179    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
3180    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
3181    o bug fix in find_alpha.F for MDJWF:
3182      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
3183        change rho -> rho-rhoConst
3184      - replace call find_rho to find_rhonum
3185    o initialisation of rFlx extended to full array (required by TAF)
3186      and shifted to thermodynamics
3187    o removed PTRACERS.h in ptracers routine
3188    o added surfacetendencyPtr to S/R parameter list pracers_forcing
3189    o Correcting initialisations for fVerU, fVerV.
3190    o helping TAF to recognize dependency on kUp for
3191      fVerU, fVerV
3192    o Replacing delZ by delR in pkg/ctrl/
3193    checkpoint51o_pre
3194    
3195    o undid all of cp51 pending some cleanups and discussion
3196    o added the [#include "AD_CONFIG.h"] statement to all files that need
3197       it for adjoint/tl #defines
3198     o re-worked the build logic in genmake2 to support AD_CONFIG.h
3199     o removed tools/genmake since it no longer works
3200    
3201    checkpoint51n_post
3202    o modifications to make FREEZE flux visible to pkg/kpp
3203      - moved surfaceTendencyTice from pkg/seaice to main code
3204      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
3205      - subroutine FREEZE now limits only surface temperature
3206        (this means new output.txt for global_ocean.90x40x15,
3207         global_ocean.cs32x15, and global_with_exf)
3208    o added surface flux output variables to TIMEAVE_STATVARS
3209    
3210    checkpoint51n_pre
3211    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
3212    o added [#include "AD_CONFIG.h"] to all files that use the following
3213      defines:
3214      - ALLOW_ADJOINT_RUN
3215      - ALLOW_TANGENTLINEAR_RUN
3216      - ALLOW_ECCO_OPTIMIZATION
3217    
3218    checkpoint51m_post
3219    o incorporating changes to get TAMC/TAF working in genmake2
3220      - added new TAMC/TAF targets to the Makefile
3221      - various cleanups related to package handling
3222      - these changes should have no impact on the forward model
3223    
3224    checkpoint51l_post
3225    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
3226     - faster algorithm for cal_addtime.F
3227     - higher precision arithmetic, where needed
3228     - pkg/exf *startdate variables changed from calendar date to
3229       model integration time
3230    
3231    checkpoint51l_pre
3232    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
3233    o enable to apply restoring on S & T only in a latitude band.
3234    o update output (external_forcing_surf modif. change truncation errors)
3235       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
3236    
3237    checkpoint51k_post
3238    o change default to: useNHMTerms=.FALSE.
3239     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
3240       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
3241     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
3242        exp1, ideal_2D_oce
3243     - change data file of oceanic exp (leave the results unchanged for now)
3244       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
3245    o set gravitySign automatically according to the vertical coordinate used
3246      (and change sign: back to "logical" value: +1 when R increases downward)
3247    o added an include barrier to the default CPP_OPTIONS.h and
3248      removed the #include "PACKAGES_CONFIG.h" from it
3249    o fix a bug in mom_fluxform (from chk51j_post)
3250    
3251    checkpoint51j_post
3252    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
3253    o adjusted some flow directives (dynamics, thermodynamics)
3254    o added cubed-sphere case to test cost function
3255    o heckpoint_lev?_directives.h now include
3256      pkg-specific directives, whenever those are enabled.
3257    o Moving pkg-specific flow directives to corresponding pkg
3258      Moving pkg-specific differentiation list to corresponding pkg
3259      Moving pkg-specific checkpoint-lev storing to corresponding pkg
3260      ---> conventions are
3261           - pkg_ad.flow
3262           - pkg_ad_diff.list
3263           - pkg_ad_check_lev?_dir.h
3264    
3265    checkpoint51i_post
3266    o merge of the branch-genmake2
3267      - knowingly breaks the older genmake
3268      - automatic generation of all ALLOW_${PKG_NAME} defines
3269      - new testreport supersedes older testscript
3270    o large number of package inclusion and header cleanups
3271    checkpoint51i_pre
3272    
3273    o new output for adjoin of global ocean vector invariant
3274    o fix for checkpoint of thermodynamic seaice and bulk_force
3275    o Steph gchem various cleanups
3276    
3277    checkpoint 51h_pre
3278    o fixed some single quotes
3279    o modify gchem pkg to be more versatile
3280    o modifications to clean up dic pkg
3281    o add pkg/cfc
3282    
3283    checkpoint51g_post
3284    o provide links for ARPACK and ADM*TLM
3285    o start removing verification/vero/
3286    o update AD-related stuff
3287      (in particular some IF-statements in model/src/ routines)
3288    o adding to verification/global_ocean.90x40x15/ adjoint of
3289      vector invariant setup
3290    
3291    checkpoint51f_post
3292    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
3293    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
3294      of tracer Green's fucntions for ocean inversion project.
3295    
3296    checkpoint51f_pre
3297    o Added on-the-fly spatial interpolation capability
3298        "USE_EXF_INTERPOLATION" to pkg/exf.
3299      - This is a temporary Cartesian-grid hack until
3300        the super-duper ESMF coupler becomes available.
3301      - See verification/global_with_exf/README for usage example.
3302      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
3303        flags and modified pkg/seaice accordingly.
3304    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
3305        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
3306        non-local transport term.
3307    
3308    checkpoint51e_post
3309    o pkg/mom_vecinv:
3310      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
3311      - add time-ave diagnostic of vorticity advection.
3312    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
3313    o atmospheric geopotential: - include water vapor effect;
3314                                - use p^kappa in p* scaling.
3315    o land pkg: read initial state from files.
3316    o AIM : add stratospheric drag in the upper level
3317    
3318    checkpoint51d_post
3319    o change function ILNBLNK (=> last non-blank char.) to return zero
3320      (instead of the string length) when the string. char is empty
3321    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
3322    o modif's to restore TAMC compatibility
3323      - avoid "_d" constructs in PARAMETER declarations
3324      - avoid interrupting lines by comment lines
3325    o Use cluster local disks for purely local I/O
3326      vs. globally visible disks needed for ctrl stuff
3327      (merged from ecco-branch)
3328      - new active_file_loc... and mdsio_..._loc routines
3329      - affected packages: autodiff, ctrl, grdchk, mdsio
3330    
3331    checkpoint51c_post
3332    o introducing integer flag debugLevel
3333      - debLevZero: suppress all output
3334      - debLevA: standard
3335      - debLevB: equivalent to current debugMode=.TRUE.
3336    o introducing pathname variable mdsioLocalDir for mdsio
3337      that can be specified at runtime
3338      (relevant for cluster I/O to local disk)
3339    `
3340    >>>checkpoint51b_post
3341    adjoint of ptracers
3342    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
3343    o extended state in checkpoint_lev?, etc.
3344    o alternative ctrl/cost with tr1 or ptracer
3345    o new comlev1_bibj_ptracers
3346    o new ptracers.flow
3347    o made ptracers_forcing same as external_forcing_s
3348    o added verification for adjoint with ptracers
3349      - adm. grdchk fail so far
3350      - tlm. grdchk OK
3351      - checked tapelev/comlev recomputations: OK
3352    <<<checkpoint51b_pre
3353    
3354    checkpoint51a_post
3355    o added code for biogeochemistry package
3356      - new pkgs: dic, gchem
3357      - new subroutine in ptracers
3358    o modify code for biogeo packages
3359      - in model/src and pkg/ptracers
3360    
3361    checkpoint51
3362    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
3363      - autodiff, ctrl, exf, grdchk, seaice
3364      kept separate packages
3365      - cost, ecco, obcs
3366    o updating verification/internal_wave, verification/lab_sea
3367      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
3368    
3369    checkpoint50i_post
3370    o Preparing next differentiable checkpoint and sync
3371      of MAIN vs. ecco-branch
3372      - 1st step: this one is differentiable
3373      - 2nd step: next(! not this) checkpoint will have updated packages
3374                  from ecco-branch)
3375    
3376    checkpoint50h_post
3377    o new package "land": provide surface BC for AIM.
3378    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
3379    o AIM: use true log-P extrapolation for near surface temp (= as in
3380        F.Molteni paper) ; update aim.5l_cs output.
3381    o New variable in PARM03 for more flexible pickups
3382    o somewhat cleaned package initialisation sequence for
3383      ctrl/ cost/ ecco/ in packages_... routines
3384    
3385    checkpoint50g_post
3386    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
3387      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
3388      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
3389        made the default because of faster convergence than ADI
3390    
3391    checkpoint50f_post
3392    o exf totally restructured
3393      - replaced all exf_set_ routines by one generic exf_set_gen.F
3394        and made sure it's still differentiable
3395      - split exf_getffields.F into new exf_bulkformulae.F
3396      - exf_inscal_/exf_outscal_ suffixes consistent with field names
3397      - updated adjoint/makefile and relevant verif. accordingly
3398    
3399    checkpoint50f_pre
3400     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
3401          + change Evap over land. (update aim.5l_cs output)
3402     o added missing .cvsignores and made uniform across expts
3403     o changed configuration of tidal_basin_2d expt
3404     o added pkg/debug functions for tracing code in fatal crashes
3405     o tidied pkg/monitor to use MONITOR_OPTIONS.h
3406     o new fn in pkg/monitor to stop model if solution grows too big
3407     o removed lots of single quotes from comments
3408    
3409    checkpoint50e_post
3410    o make KPP work with PTRACERS
3411     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
3412       nearly a copy of kpp_transport_s
3413     - there is no analogue to SurfaceTendencyS, so I have to use
3414       gPtr(of the surface layer) instead
3415    o add a new platform SunFire+mpi (SunFire 15000) to genmake
3416    checkpoint50e_pre
3417    
3418    checkpoint50d_post
3419    o change kpp output from multiple-record state files to single-record state
3420      files analogous to write_state.F
3421    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
3422      analogous to the cg2d-related output.
3423    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
3424      so that writing to internal file fn (with length 512) fails.
3425    checkpoint50d_pre
3426    
3427    checkpoint50c_post
3428    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
3429    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
3430    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
3431    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
3432    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
3433    
3434    checkpoint50c_pre
3435    Merging from release1_p13:
3436    o bug fix for pkg/seaice dynamic solver
3437    o Added SEAICE_initialHEFF to pkg/seaice
3438    
3439    checkpoint50b_post
3440    o store u*,v* in gU,V instead of in guNm1,gvNm1
3441    o in order to put the momForcing out of the Adams-Bashforth:
3442      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
3443      to timestep.F
3444    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
3445    o re-generate output for highly sensitive test-exp:
3446       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
3447    
3448    checkpoint50b_pre
3449    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
3450    o corrected CPP option mismatch in exf_Bulk... functions for case
3451      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
3452    
3453    checkpoint50a_post
3454    o Bug fix for merging between c50 and KPP.
3455      ikey was passed from thermodynamics to kpp_calc via
3456      common block rather than being recomputed in kpp_calc,
3457      in contradiction with new key itdkey.
3458      New key ikppkey created, and tamc.h headers updated.
3459    
3460    checkpoint50
3461    - 2nd step of merge with ecco-branch:
3462      merge changes in ecco-branch back into main trunk
3463    - bug fix in find_alpha
3464    - more storing in gmredi_calc_tensor.F, kpp_routines.F
3465    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
3466    - merged some sliced AD support routines
3467    
3468    checkpoint49
3469    merged from ecco-branch:
3470    o exf:
3471      - Enable initialisation of forcing fields to constant
3472        (runtime) values.
3473      - in exf_getffields.F
3474        Reduce i-/j-loop to interior domain, discarding overlaps.
3475        That also fixes wrong TAF-key computations for key_1, key_2
3476        with bulf formulae.
3477      - exf_init.F modify #ifdef for exf_init_evap
3478      - exf_getffieldrec.F, ctrl_getrec.F
3479        The following INT-usages are not safe:
3480          fldsecs  = int(fldsecs/fldperiod)*fldperiod
3481          fldcount = int(fldsecs/fldperiod) + 1
3482        and were modified.
3483    o autodiff: checkpoint_lev...
3484      - updated storing for bulk formulae (some arrays were missing)
3485      - added state for seaice package
3486      - synchronized with main branch
3487    o DIVA:
3488      Modif.s in
3489      - the_main_loop.F
3490      - the_model_main.F
3491      and added cost_final_restore.F cost_final_store.F
3492      o With these changes, it is possible to fully separate
3493        the first forward run to compute the cost function (mdthe_main_loop)
3494        and adjoint runs over individual DIVA intervals (adthe_main_loop)
3495        into separate model executions.
3496        This enables better tuning of DIVA to given queue sizes.
3497      o Loss of cost function value in consecutive DIVA runs is
3498        fixed by storing to 'costfinal' file.
3499      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
3500        beginning/end of adjoint integration is accounted for.
3501      The current changes apply to TAF-1.4.26.
3502      TAF has one remaining bug, requiring one manual change
3503      (see MITgcm manual).
3504    o cal: synchronized between MAIN and ecco-branch
3505    
3506    checkpoint48i_post
3507    o Changes to restore differentiability of code w.r.t. previous tag
3508      (mostly adding new routines to make list and replacing
3509      pressure by totPhiHyd).
3510    o Updated and merged grdchk package
3511      - has both ADM and TLM checks
3512      - works for single- and multi-proc.
3513      - output cleaned
3514      - worked successfully for parallel DIVA
3515    o genmake:
3516      - Adding -platform=SP4
3517      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
3518    o Modif. for DIVA:
3519      ctrl_unpack should not be called in intermediate DIVA interval.
3520      (similar thing would apply for active files such as
3521      tbar, sbar, psbar, which should not be reinitialised;
3522      only relevant for ecco-branch)
3523    
3524    checkpoint48h_post
3525    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
3526    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
3527    o Added SEAICE_initialHEFF to pkg/seaice
3528    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
3529    
3530    checkpoint48g_post
3531    --- EOS:
3532    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
3533      store total Potential in totPhyHyd for diagnostics & EOS.
3534    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
3535    --- Pressure/geopotential gradient:
3536    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
3537    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
3538      ( changes results of global_ocean_pressure )
3539    o NLFS + z-coord.: add eta*Rho' contribution.
3540    o accurate phiHyd when using interface-W at the middle between 2 centers
3541     ( changes results of ideal_2D_oce )
3542    o includes r* 2nd term in potential gradient.
3543    
3544    checkpoint48f_post
3545    Merging from release1_p12:
3546    o Modifications for using pkg/exf with pkg/seaice
3547      - improved description of the various forcing configurations
3548      - added basic radiation bulk formulae to pkg/exf
3549      - units/sign fix for evap computation in exf_getffields.F
3550      - updated verification/global_with_exf/results/output.txt
3551    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
3552      (SBO) core products, including oceanic mass, center-of-mass,
3553      angular, and bottom pressure (see pkg/sbo/README.sbo).
3554    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
3555      to avoid negative values in shallow regions.
3556      - updated verification/natl_box/results/output.txt
3557      - updated verification/lab_sea/results/output.txt
3558    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
3559    o Added useSingleCpuIO option (see PARAMS.h).
3560    o Updated useSingleCpuIO option in mdsio_writefield.F to
3561      work with multi-field files, e.g., for single-file pickup.
3562    o pkg/seaice:
3563      - bug fix in growth.F: QNET for no shortwave case
3564      - added HeffFile for specifying initial sea-ice thickness
3565      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
3566    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
3567      kpp_transport_t.F, forward_step.F, and the_main_loop.F
3568    o pkg/seaice:
3569      - adjoint-friendly modifications
3570      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
3571    
3572    checkpoint48e_post
3573    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
3574    o dynamics: change definition of computational domain & adapt mom_fluxform
3575      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
3576    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
3577        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
3578        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
3579        global_ocean.90x40x15 global_with_exf global_ocean_pressure
3580        inverted_barometer solid-body.cs-32x32x1
3581      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
3582    
3583    checkpoint48d_post
3584    o in preparation for r*:
3585     a) use pre-computed gradient of hydrostatic potential:
3586        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
3587     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
3588        => affects results of glob_oce_pressure (different truncation error)  
3589      update output.txt of ideal_2D_oce & global_ocean_pressure
3590    
3591    checkpoint48d_pre
3592    o in preparation for r*:
3593      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
3594      pass the 2 comp. of the grad. as arguments to momentum S/R.
3595      but for the moment, only used if it does not change the results.
3596    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
3597    
3598    checkpoint48c_post
3599    Modifications in treatment of initial flux forcing controls
3600    to avoid extra storing of flux fields.
3601    
3602    checkpoint48c_pre
3603    o Added tidal_basin_2d experiment (currently 1D!)
3604    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
3605    
3606    checkpoint48b_post
3607    o r* coordinate added in #ifdef NONLIN_FRSURF block.
3608     (modification to pressure gradient not yet implemented)
3609    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
3610      (for U & V) that are used for vertical advection of momentum.
3611    
3612    checkpoint48a_post
3613    o In preparation for r*, use temp. array to compute vertical transport
3614       in flux-form momentum pkg. => change results of few test-exp.
3615      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
3616                        lab_sea, natl_box & plume_on_slope
3617    
3618    checkpoint48
3619    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
3620    
3621    checkpoint47j_post
3622    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
3623    o moved adexch from forward_step to addummy_in_stepping
3624    o added exch in ctrl_map_...
3625    o aveFreq.=0. at end of cost_final to avoid overwrite in
3626      reverse checkpointing loop
3627    o Yet more changes in gmredi:
3628      * adgmredi_calc_tensor
3629        avoiding all recomputation of gmredi_slope_limit
3630      * adgmredi_x/y/rtransport
3631        added flag for excessive storing to avoid recomp. of
3632        u/v/rtans, dTdx/y/z
3633        -> this is not really necessary and very memory-consuming
3634      * adgmredi_slope_psi:
3635        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3636      * gmredi_slope_limit
3637        re-activated full calculation of taperfct for case 'ac02'
3638    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3639    
3640    checkpoint47i_post
3641    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3642    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3643      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3644    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3645    o gmredi: fix few bugs.
3646    
3647    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3648    This will be a good checkpoint to plug into the ecco-branch.
3649    o few modif.'s to get latest version adjointed
3650      (mainly kick out code in ini_linear_phisurf)
3651    o modif's to run adjoint with exactConserv
3652    o case GM_BOLUS_ADVEC should be cleaned
3653      S/R gmredi_slope_psi should be cleaned
3654    o verification/carbon now has exactConserv=.TRUE.
3655    
3656    checkpoint47g_post
3657    o time-average AIM output: becomes independent from statvars time-average
3658      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3659    o After TAF bug fix:
3660      Tested adjoint of gmredi package.
3661      Tests were done with checkpoint47 rather than with latest
3662      checkpoint47f_post since the latter is broken for the adjoint
3663      verification/carbon/ contains both ADM and TLM gradient checks.
3664    Here they are, before they get changed/lost/stolen.
3665    Mostly modif.'s to fix numerical sensitivities.
3666    Gradient checks OK for
3667    - GM_taper_scheme:
3668      * clipping
3669      * ac02
3670      * linear
3671      * glw91
3672      * dm95
3673      * ldd97
3674    - GMREDI_OPTIONS:
3675      * GM_VISBECK_VARIABLE_K
3676      * GM_NON_UNITY_DIAGONAL
3677      * GM_EXTRA_DIAGONAL
3678      * GM_BOLUS_ADVEC
3679    in conjunction with data.gmredi parameters to be checked in
3680    in a few minutes under verification/carbon/code/
3681    
3682    checkpoint47f_post
3683    Merging from release1_p10:
3684    o modifications for using pkg/exf with pkg/seaice
3685      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3686        and SEAICE_EXTERNAL_FLUXES
3687      - pkg/exf CPP options EXF_READ_EVAP and
3688        EXF_NO_BULK_COMPUTATIONS
3689      - usage examples are Experiments 8 and 9 in
3690        verification/lab_sea/README
3691      - verification/lab_sea default experiment now uses
3692        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3693    
3694    checkpoint47e_post
3695    o created a tag prior to creating a branch
3696    
3697    checkpoint47d_post
3698    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3699      at the bottom boundary had an erroneous half slip boundary condition
3700    o added bottom drag and no slip boundary condition capabilities to
3701      oceanic pressure coordinates code
3702    o added new verification experiment global_ocean_pressure, this experiment is
3703      also described in the tutorial section of the manual
3704    checkpoint47d_pre
3705    
3706    checkpoint47c_post
3707    o Added a verification experiment for a global cubed-sphere ocean run
3708      -  verification/global_ocean.cubed32x32x30
3709      -  uses pkg/therm_seaice and pkg/bulk_forcing
3710    
3711    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3712    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3713      when using P-coordinate; only implemented for atmospheric config.
3714    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3715      NOTES: requires option NONLIN_FRSURF to be "#define".
3716    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3717    
3718    checkpoint47b_post
3719    Merging from release1_p9:
3720    o pkg/seaice
3721      - removed GOTO's and added taf directives
3722      - double precision constants to reduce the g77 (Linux)
3723        to F77 (SGI) differences reported in release1_p8
3724    o tools/genmake
3725      - added SGI options
3726    o verification/testscript
3727      - updated to that of checkpoint47a_post
3728    o verification/global_ocean.90x40x15/input/eedata
3729      - modified for SGI f77 compatibility
3730    o verification/lab_sea
3731      - added description of sea-ice model
3732      - added missing matlab routines
3733      - added test of thermodynamics parallelization
3734    
3735    checkpoint47a_post
3736    o new pkg: aim_v23
3737     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3738       for now, keep the same surface forcing as before.
3739     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3740     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3741     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3742    o add diagnostic of surface correction term in monitor output
3743    
3744    o bulk_force and therm_seaice
3745    - Two packages:  bulk_force (Bulk forcing)
3746      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3747    - Earlier integration from Stephaine Dutkiewicz
3748      and Patrick Heimbach.
3749    - Two ifdef statements for compile time,
3750       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3751    
3752    checkpoint47
3753    differentiable version of checkpoint46n_post
3754    o bug fix in quasihydrostaticterms
3755    o * "clean" adjoint code (in terms of extensive recomputations)
3756        can now be obtained for all GMREDI options (i.e. for
3757        - GM_VISBECK_VARIABLE_K
3758        - GM_NON_UNITY_DIAGONAL
3759        - GM_EXTRA_DIAGONAL
3760        - GM_BOLUS_ADVEC )
3761      * However, wrong gradient check problem remains unsolved.
3762      * New CPP options have been introduced for different
3763        tapering schemes
3764    o external_fields_load now part of differentiation list
3765    o pressure needs multiple storing;
3766      would be nice to have store_pressure at beginning or
3767      end of forward_step, e.g. by having phiHyd global (5-dim.)
3768      (NB: pressure is needed for certain cases in find_rho,
3769      which is also invoked through convective_adjustment).
3770    o recomputations in find_rho for cases
3771     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3772    o #define ATMOSPHERIC_LOADING should be differentiable
3773    o ini_forcing shifted to begining of initialise_varia
3774    o Incorporating QNVS line search routines into MITgcm
3775      (this is separate code, and therefore not under pkg)
3776      lsopt/, optim/
3777    o Updated verification/carbon/
3778      - #define GM_VISBECK_VARIABLE_K
3779      - GM_taper_scheme    = 'ldd97'    
3780    
3781    checkpoint46n_post
3782    Merging from release1_p8:
3783    o verification/natl_box:
3784      updating new external_fields_load routine
3785    o New package: pkg/seaice
3786      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3787      The sea-ice code is based on Hibler (1979-1980).
3788      Two sea-ice dynamic solvers, ADI and LSR, are included.
3789      In addition to computing prognostic sea-ice variables and diagnosing
3790      the forcing/external data fields that drive the ocean model,
3791      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3792      The implied surface heat flux is then stored in variable
3793      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3794      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3795      non-local transport term.  Because this call precedes model
3796      thermodynamics, temperature under sea-ice may not be "exactly" at
3797      the freezing point by the time theta is dumped or time-averaged.
3798      N.B.: fairly large differences in accuracy occur across
3799            different platforms/compilers; comparison between
3800            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3801            generated output gives:
3802       T           S           U           V
3803      C D M    c        m  s        m  s        m  s        m  s
3804      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3805      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3806      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3807    
3808      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3809    o GAD:
3810      - generated new common blocks to account for call of
3811        same gad routines with differing traceridentities
3812        (needed to modify tracerIdentity indices in GAD.h)
3813      - generated separate common blocks for case useCubedSphereExchange
3814        (Department of Futurology)
3815      - parameter lists to gmredi_?transport: added tracerIdentity
3816      - added new key indices to tamc.h
3817    o external_fields_load:
3818      - added this routine to TAF list
3819      - needed to make some common blocks global and additional storing
3820        along the same lines as exf package (checkpoint_lev?_directives.h)
3821    o exf:
3822      updated external forcing package
3823      - bug fixes carried over from ecco-branch
3824        (missing OBCS_OPTIONS.h in two routines)
3825      - enable easy to use "no forcing".
3826      - added exf I/O for atmospheric loading
3827      - added exf I/O for runoff data
3828      - transfered scaling between exf <-> MITgcm to exf namelist
3829    o Adding new verification experiment global_with_exf.
3830      This verification experiment is almost identical to the
3831      global_ocean.90x40x15 experiment, except that it uses
3832      the exf (and cal) package instead of the
3833      external_fields_load routine (cf README file).
3834    
3835    checkpoint46m_post
3836    o modified testscript to return -- when there are no lines of "%MON" output
3837    o added new flag "quasiHydrostatic" for QH mode
3838      and new routine quasihydrostaticterms()
3839    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3840      New routine: mom_u_coriolis_nh()
3841    o fixed sign of non-hydrostatic metric terms in u and v equations.
3842      Depend on correct sign of gravitySign.
3843    o added work.pc* to .cvsignore in aim directories using ifc
3844    o introduced flag for controllin non-hydrostatic metric terms
3845    o removed gravitySign from PARM04
3846    o switched to g77/ifc from pgf77 in aim experiments
3847    
3848    checkpoint46l_post
3849    o made convective adjustment work with pressure coordinates:
3850     - changed the direction of k-loop in convective_adjustment.F for the
3851       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3852     - adjusted the reference pressure k-index in convective_adjustment.F
3853     - adjusted the convection condition in convect.F (in analogy to
3854       calc_ivdc.F)
3855     - convective_adjustment no longer computes anything on the halos
3856     - removed the warnings about negative salinity from find_rho.F and
3857       find_alpha.F; instead the new routine look_for_neg_salinity, called
3858       at the beginning of find_rho, find_alpha, and find_beta, does a
3859       check of the entire slice, if CPP-option
3860       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3861    checkpoint46l_pre
3862    
3863    checkpoint46k_post
3864    o fixed the verification/global_ocean.90x40x15 experiment:
3865     - new bathymetry (the world according to A., JMC, and M.)
3866     - new initial fields and forcing fields (*.bin files)
3867     - new POLY3.COEFFS (for the next release one should switch to a full
3868       equation of state: JMD95P or MDJWF)
3869     - fixed several errors and redundancies in the data file
3870     - experiment uses looped cells
3871     - added matlab directory with diagnostic scripts for plotting of output
3872    
3873    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3874     - read AIM physics parameters from a file (data.aimphys)
3875     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3876    
3877    checkpoint46j_post
3878    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3879    o move wVel computation at the end of the time step, in S/R integr_continuity
3880    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3881    o update timeave pkg for wVel diagnostic.
3882    checkpoint46j_pre
3883    
3884    checkpoint46i_post
3885    o Clean up AIM package (and keep the results unchanged):
3886      include CPP_OPTION and use IMPLICT NONE in all routines ;
3887      declare all the variables _RL ; use _d 0 for all numerical constants.
3888      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3889    
3890    checkpoint46h_post
3891    o cleaned up the use of rhoNil and rhoConst.
3892      - rhoNil should only appear in the LINEAR equation of state, everywhere
3893        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3894        and the dynamical equations are all divided by rhoConst
3895    o introduced new parameter rhoConstFresh, a reference density of fresh
3896      water, to remove the fresh water flux's dependence on rhoNil. The default
3897      value is 999.8 kg/m^3
3898    o cleanup up external_forcing.F and external_forcing_surf.F
3899      - can now be used by both OCEANIC and OCEANICP
3900    checkpoint46h_pre
3901    
3902     Added code to convert surface volume flux (fresh water) into
3903     a mass flux when using P coordinates in the ocean (OCEANICP).
3904     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3905    
3906    checkpoint46g_post
3907    o Include a new diagnostic variable phiHydLow for the ocean model
3908      - in z-coordinates, it is the bottom pressure anomaly
3909      - in p-coordinates, it is the sea surface elevation
3910      - in both cases, these variable have global drift, reflecting the mass
3911        drift in z-coordinates and the volume drift in p-coordinates
3912      - included time averaging for phiHydLow, be aware of the drift!
3913    o depth-dependent computation of Bo_surf for pressure coordinates
3914      in the ocean (buoyancyRelation='OCEANICP')
3915      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3916        Theta, Salinity, and Pressure in the parameter list. This routine is
3917        presently contained in find_rho.F. This routine does not give the
3918        correct density for 'POLY3', which would be a z-dependent reference
3919        density.
3920    o cleaned up find_rho
3921      - removed obsolete 'eqn' from the parameter list.
3922    o added two new verification experiments: gop and goz
3923      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3924    checkpoint46g_pre
3925    
3926    checkpoint46f_post
3927    o Enable tangent linear (forward mode) gradient checks:
3928      - extended active file handling to g_... files
3929      - added TANGENT_SIMULATION to theSimulationMode
3930      - extended grdchk package accordingly
3931    o added tangent linear setup in verification/carbon/code_ftl
3932    o added adjoint setup in verification/front_relax/code_ad
3933    
3934    checkpoint46e_post
3935    o Added new equation of state -> MDJWF
3936      - EOS of McDougall et al., 2002, JAOT, submitted
3937      - caveat: the equation of state is only valid for a smaller (more
3938        realistic?) range of values than JMD95P/Z and UNESCO
3939      - added masks to the calculation of pressure in store_pressure
3940      - added more check values for density in check_eos (ini_eos.F), some of
3941        the old check values are out of the range of the MDJWF-eos, so don't
3942        expect perfect matches for those
3943    checkpoint46e_pre
3944    
3945    checkpoint46d_post
3946    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3947      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3948      case of pressure coordinates. eosType='JMD95Z' in
3949      combination with buoyancyRelation='OCEANICP' now causes an error.
3950    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3951      in find_alpha/beta.
3952    checkpoint46d_pre
3953    
3954    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3955      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3956    
3957    checkpoint46c_post
3958    o Changes necessary for ocean in p-coordinates
3959     -  Added new buoyancy relation = 'OCEANICP'
3960     -  Added new parameters = gravitySign (this used to be contained inside
3961        the factor dRdZ which I added when we first switched to R coordinates).
3962     X GM/Redi is not compatible (yet)
3963     X bottom drag and no-slip need to be debugged.
3964    checkpoint46c_pre
3965    
3966    checkpoint46b_post
3967    o Added new equation of state -> JMD95Z and JMD95P
3968      - EOS of Jackett and McDougall, 1995, JAOT
3969      - moved all EOS parameters into EOS.h
3970      - new routines ini_eos.F, store_pressure.F
3971    o Added UNESCO EOS, but not recommended because it requires
3972      in-situ temperature (see JMD95)
3973    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3974      unesco.f to be used with POLY3
3975    checkpoint46b_pre
3976    
3977    checkpoint46a_post
3978    o Added (atmospheric) pressure loading
3979      - new field in FFIELDS.h, etc...
3980      - new cpp flag ATMOSPHERIC_LOADING
3981    o Changed hFacC to _hFacC in calc_phi_hyd.F
3982    o Added SHORTWAVE_HEATING to some files for consistency
3983    checkpoint46a_pre
3984    
3985    checkpoint46
3986    further merges from release1_p5
3987    o new ctrl package
3988      - adopted from ECCO environment to enable optimization
3989      - added Eliassen Palm fluxes to controls
3990    o added Eliassen Palm flux controls to gradient check package
3991    o cost package
3992      - Compatible with new ctrl package
3993      - added Eliassen Palm cost hooks
3994      - modif's of existing cost functions
3995    o Adjoint-related bug fixes in kpp:
3996      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3997      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3998    o autodiff package
3999      - flow directives:
4000        + new for S/R do_the_model_io
4001        + enhanced for S/R checkpoint
4002        + new gmredi.flow
4003      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
4004        disable adcommon.h/g_common.h by default.
4005      - fixed problem for adjoint of global_max
4006    o modified verification/carbon/
4007    o New setup for adjoint of global_ocean
4008    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
4009    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
4010    o incorporated hooks for sponge layer code (external_forcing.F)
4011    
4012    checkpoint45d_post
4013    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
4014    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
4015      (affects plume_on_slope "cg2d" output)
4016    o add new parameter deltaTfreesurf for free-surface time stepping
4017    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
4018    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
4019    o change phiMin in exp1 (to agree with documentation)
4020    o add new flags:
4021     - T,S forcing inside/outside Adams-Bashforth
4022     - turn off temp,salt advection and/or forcing
4023     - for each tracer, define internal flag for multiDimAdvection & A-B
4024    o monitor: change definition of KE to check conservation of Energy
4025    
4026    checkpoint45c_post
4027    o Removed f90 comments ("!")
4028    o Modified initialisations to enable exf package for MITgcm
4029      (without invoking ECCO_PACKAGE).
4030    o modifications to gradient check package (Martin Losch)
4031      - enable centered differences
4032      - modified format of standard output
4033    
4034    checkpoint45b_post
4035    o cleaned exchange calls in cg2d
4036    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
4037    o included CPP option SINGLE_LAYER_MODE in thermodynamics
4038      to configure barotropic setup (Martin Losch)
4039    o moved some initialisations within bi,bj loop in dynamics
4040      (TAF flow dependency)
4041    o in initialise_varia, moved call packages_init_variables
4042      before convective_adjustment_init
4043      (corresponding adjustment of TAF tape initialisation).
4044    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
4045    
4046    checkpoint45a_post
4047    o compute Rho over the whole domain (extend iMin,jMin indices)
4048    o specific exchange for X-slice domain (case Ny=1)
4049    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
4050    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
4051    
4052    checkpoint44h_post = checkpoint45
4053    o Fix to restore differentiability:
4054      place at which packages_init_variables is called in
4055      initialise_varia is crucial for reverse control flow.
4056    o modifications in GMRedi to enable stable adjoint
4057      (corresponding modif's in thermodynamics, dynamics)
4058    o added missing hook for sponge layer code in external_forcing
4059    o modified test cost functions
4060    o storing in gad_advection (plus removal of write(0,*)!
4061    o missing headers TR1.h added in convective_adjustment routines
4062    o errorMessageUnit set non-equal zero in eeboot
4063      (conflict on some platforms, e.g. IBM SP3)
4064    o modified carbon verif.
4065    
4066    checkpoint44h_pre
4067    o vertical grid option: allow to put the Interface at the middle between
4068      2 cell-centers ; replace delZ in pkg/kpp by drF.
4069    o GM Advective form: Tracers are advected using the residual transport (=
4070      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
4071    
4072    checkpoint44g_post
4073    o fix surface correction term in multiDimAdvection (affects plume_on_slope
4074      results) ; ifdef missing in thermodynamics.F
4075    
4076    checkpoint44f_pre,checkpoint44f_post
4077    o added PTRACERS package
4078      This allows an arbitrary number of passive tracers to be integrated
4079      forward simultaneously with the dynamicaly model.
4080      + Implemented so far:
4081        - basic forward algorithm (time-stepping, advection, diffusion, convection)
4082        - I/O and checkpointing
4083        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
4084      + Not implemented so far:
4085        - KPP
4086        - OBCS
4087      + No specific example supplied (yet) but global_ocean.90x40x15 has the
4088        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
4089        line in data.pkg.
4090      + This package is disabled by default since it increases storage.
4091    
4092    
4093    o testscript: added -cleanup option
4094    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
4095                 b) enable to filter 2D fields.
4096    
4097    checkpoint44e_pre,post
4098    o re-wrote convective adjustment to use pre-calculated weights
4099      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
4100      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
4101      Original calls to convect() still in place.
4102    
4103    chkpt44d_pre,post
4104    o added missing EXCLUDE_MONITOR flags
4105    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
4106      (incompatible typ in MIN/MAX expressions caused problems
4107      on IBM SP3)
4108    o in genmake added variable MAKEDEPEND
4109      plus resetting for case SunOS
4110    o added timer_stats.c routine for IBM SP3
4111    o removed variables in dynamics
4112    !!! I forgot to create tag chkpt44d_pre !!!
4113    !!! But chkpt44d_pre = chkpt44c_post    !!!
4114    
4115    o real fresh water flux implemented with non-linear free-surface.
4116    
4117    chkpt44c_pre,post
4118    o few fix (mask in shap_s2, EmPmR in external_field_load,
4119      USE_NATURAL_BCS in solve_for_P);
4120    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
4121    
4122    checkpoint44b_pre/_post
4123    o merge of relevant stuff from the ecco-branch:
4124      - genmake: removed $S64 overwrite for case SunOS
4125      - pkg/exf: update and corrections for field swapping and obcs
4126      - pkg/ecco: parameter lists for the_model_main, the_main_loop
4127                  harmonized between ECCO and MITgcm
4128      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
4129                      updated checkpointing_lev... lists for obcs
4130      - model/src: minor changes in forward_step, plot_field
4131                   added directive for divided adjoint in the_main_loop
4132      - pkg/mdsio: added mdsio_gl_slice
4133    
4134    o check parameters & config (chkpt44a_pre,post)
4135    o OBC and NonLin_FrSurf.
4136    
4137    checkpoint44
4138    o fix bug in mom_vi_del2uv
4139    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
4140    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
4141    o update AIM experiments (NCEP input files)
4142    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
4143    o added some stuff for AD
4144    
4145    checkpoint43
4146    o added two new advection tests
4147    o added global 4x4 degree ocean test
4148    o added test of H&S94 with free surface on cube
4149    o some final mods for gradient check, adjoint,...
4150    
4151    checkpoint42
4152      Fixed AD-related problems:
4153    o Store directives up-to-date with re-arranged Adams-Bashforth
4154      (mainly thermodynamics.F)
4155    o New store directives for multi-dim. advection schemes
4156      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
4157      * new common block and key passkey
4158      (mainly gad_advection.F)
4159    o Modified store directives for split of dynamics/thermodynamics
4160      for the case ALLOW_KPP
4161    o Cleaned argument list for timestep_tracer.F
4162    
4163    checkpoint41
4164    o re-formatted/added comments in prologues of key subroutines
4165      to work with protex
4166    
4167    checkpoint40
4168    o moved calc_gs, calc_gt and calc_tr1 back to model/src
4169    o added FLT (floats) package from Arne along with demo. experiment
4170    o re-arranged Adams-Bashforth scheme for tracers to allow easier
4171      implementation of forward-in-time forcing terms
4172    o more mods for non-linear free-surface including new variable
4173    o modified multi-dim method to work on cube
4174    o bug fix in KPP (from DM)
4175    
4176    checkpoint40pre9
4177    o added DST advection schemes
4178    o fix MPI bug on SGI's
4179    o modifications for non-linear free-surface
4180    o fixed conditionals for fixed flow/passive tracer only mode
4181    o added tension/strain form of stress tensor
4182    o changes to commenting of arguments for TAF/TAMC
4183    o added/updated many matlab scripts
4184    o added multi-dimensional advection method for tracers
4185      
4186    checkpoint40pre8
4187    o new package rw/
4188      Added method for dumping intermediate local arrays:
4189      mdsio_writetile - same as mdsio_writefield except works from inside
4190                        bi,bj loop
4191      mdsio_writelocal - same as mdsio_writetile except works for local
4192                         arrays
4193      write_local_r? - higher-level wrapper for mdsio_writelocal
4194      Controlled by diagFreq. Defaults to zero (ie. no dumps)
4195      Example given at end of mom_vecinv.F that dumps some local arrays.
4196    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
4197      control flux-form versus vector invariant code.
4198      Switch is runtime flag vectorInvariantMomentum (defaults to false)
4199      or genmake -DISABLE ...
4200    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
4201      (additional storing is now needed for case vecinv;
4202      currently nothing implemented to switch this storing off
4203      in case fluxform is used since no CPP flag available).
4204    
4205    checkpoint40pre7
4206    o bug fix in dynamics.F
4207      calc_viscosity called before k=1,Nr loop.
4208    o added some #ifdef's ALLOW_PASSIVE_TRACER
4209    o cleaned initialisations in ctrl_map_ini
4210      related to TAF
4211    
4212    checkpoint40pre6
4213    o split dynamics into thermodynamics & dynamics
4214    o corresponding split of calc_diffusivity into
4215      calc_diffusivity, calc_viscosity
4216      (kpp_calc_diff, kpp_calc_visc).
4217    o Added diffkr, kapgm to control variables
4218    o bug fix in gmredi_slope_limit for ldd97
4219    
4220    checkpoint40pre5
4221    o proper initialization of Adams-Bashforth time stepping
4222      + uses forward step for very first step of model (iter=0)
4223    o re-generated *all* output since almost all output is modified by this
4224      change (sorry but we've been putting this one off for about 2 years)
4225      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
4226        *not* regenerated since they are already out of date and I don't
4227        want to create the impression that they are suddenly working.
4228    o removed KAP stuff for DEC's
4229    o modified/added many .cvsignore files in */code and */input
4230    o added new expt "solid-body.cs-32x32x1"
4231      + this uses an alternative form of ini_curvilinear_grid.F which
4232        is not necessarily any better than the current one...
4233    
4234    checkpoint40pre4
4235    o added re-initialisations of utrans,vtrans,rtrans in
4236      calc_common_factors which are crucial for TAF.
4237    o extended iMin,jMin range for calc_common_factors,
4238      calc_diffusivity
4239    o added option ALLOW_PASSIVE_TRACER
4240    o a few minor updates and fixes
4241    
4242    checkpoint40pre3
4243    o created calc_gtr1.F for gad package
4244    o split the_main_loop and re-introduced forward_step
4245    o some recomputations of nIter0 for TAMC
4246    
4247    checkpoint40pre2
4248    o Updated to latest branch of AJA, JMC
4249    o Added gradient check package
4250    o Added routines for passive tracer handling
4251    o Added carbon sequestration sensitivity experiment
4252    
4253    checkpoint39
4254     o Modifications and fixes to support TAMC
4255       (mainly missing or wrong directives)
4256     o Corrected common blocks when fooling TAMC to produce adjoint I/O
4257       in addummy_in_stepping
4258     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
4259     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
4260     o Included following packages:
4261       cal: calendar
4262       exf: external forcing
4263       ecco: essential routines to control use of cal, exf
4264             (NB: this is not the full ECCO environment)
4265     o disabled some packages by default in genmake
4266    
4267    checkpoint38
4268     o see notes_c37_adj.txt
4269     o corrected wrong layer index in external_forcing_t
4270     o replaced the_main_loop/forward_step by the_main_loop
4271     o removed forceoutput from write_state
4272       (replaced criteria for initial/final state)
4273     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
4274    
4275    checkpoint37
4276     o mdsio.F routine split and packaged in pkg/mdsio
4277       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
4278        used unless genmake -disable=mdsio)
4279     o allow a more precise surface-geopotential gradient for the atmosphere
4280       taking into account the change in space of Alpha (=1/rho) at the surface.
4281     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
4282       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
4283     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
4284       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
4285       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
4286     o Time-Average diagnostics defined as a pseudo package "timeave".
4287     o pickup files : old pickup (before c35) did not work with new code (c35
4288       and after) unless activating 2 commented lines in initialise-varia.
4289     o Non-Hydrostatic pickup file Pb fixed.
4290     o bug with Rigid-lid version (since c35) fixed.  
4291    
4292  checkpoint36  checkpoint36
4293   o implement Crank-Nirotropic time-stepping   o implement Crank-Nickelson barotropic time-stepping
4294   o recover Time-Average diagnostics   o recover Time-Average diagnostics
4295   o fix Pb in checkpoint (PR#19)   o fix Pb in checkpoint (PR#19)
4296   o AIM become a standard package ; clean unused CPP_kees   o AIM become a standard package ; clean unused CPP_kees

Legend:
Removed from v.1.36  
changed lines
  Added in v.1.1143

  ViewVC Help
Powered by ViewVC 1.1.22