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revision 1.403 by heimbach, Sat Dec 4 23:26:49 2004 UTC revision 1.1148 by jmc, Thu Aug 6 14:43:14 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/ebm: add plenty of missing "_d 0" ;
8       update results of experiment global_ocean_ebm (fwd + adjoint tests)
9      Notes: several pieces of code only works for (very) specific set up
10       (domain size, lat range, etc ...); should be documented & stop if one
11       of those assumptions is not meet.
12    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
13       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
14          and offline_exf_seaice (seaicetd + adjoint).
15    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
16       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
17        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
18    o few changes to pass when compiling with strick checking of arguments
19       across S/R (allow to find few bugs in S/R calls).
20    o pkg/seaice:
21     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
22       2d-fields, for slightly better performance
23    
24    checkpoint61t
25    o pkg/seaice:
26     - remove unused variables in seaice_evp
27     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
28    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
29       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
30       each processor opens a different file (a fix from Matt).
31    o cg2d:
32       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
33       this reduces number of EXCH calls by 2 when using exch2.
34       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
35       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
36    o pkg/thsice:
37       add code for Near Infra-Red albedo (from Jeff)
38       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
39    o ini_model_io:
40       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
41       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
42       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
43    
44    checkpoint61s
45    o pkg/exch2 (exch2_rxN_cube*):
46       remove last BARRIER (no need to synchronise after getting data from shared
47       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
48    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
49      and generate new output (for the 2 tests) using default rotationPeriod.
50    o pkg/exch2:
51      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
52        (was already the case with AUTODIFF_EXCH2 defined)
53      - add bj in exch2 arrays and S/R.
54      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
55        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
56    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
57      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
58        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
59      - verification experiment natl_box.longstep
60    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
61      allow different versions of ifort (8 or 9) and different versions
62       of mpi (mpich or mpich2) to be used with the same optfile.
63      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
64       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
65    o pkg/seaice:
66      fix previous modif (3-level field removed) for old-pickup reading
67    
68    checkpoint61r
69    o pkg/seaice:
70     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
71      1. introduce fields for time step (N-1)
72      2. do not use levels 2 and 3 anymore (but keep them)
73      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
74         includes changes to pkg/thsice/thsice_get_velocity.F,
75         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
76         pkg/obcs/obcs_apply_uvice.F.
77     - completely remove code for leap-frog time stepping for second order
78       advection
79     - adjusted adjoint accordingly;
80       gradient checks have improved by an order of magnitude!
81    
82    checkpoint61q
83    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
84     - the boundary conditions along open boundaries are unclear, because the
85       associated masks are set to zero and are thus treated as closed when
86       applying the slip-boundary conditions.
87     - move initialisation of grid variables from seaice_init_varia to _fixed
88    o adding doc/diags_changes.txt
89    o model/src:
90      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
91       to avoid "_diags" naming if no relation to pkg/diagnostics.
92      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
93       file and only call PLOT_FIELD_XYZ if debugMode=T.
94      remove few PLOT_FIELD_XY calls outside initialisation.
95      remove few unnecessary BARRIER.
96    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
97      of salt_plume package in Southern Ocean
98    o pkg/thsice:
99     - fix hOceMxL in overlap (needed for sea-ice advection);
100       update output of experiment global_ocean.cs32x15.icedyn.
101    o pkg/seaice:
102     - make the (placeholder-)tracer IceAge a little more meaningful
103      by avoiding ridging of age due to convergent ice flow
104     - add diagnostics for surface temperature, atmospheric and oceanic
105       heat flux, and atmospheric and oceanic ice growth
106    
107    checkpoint61p
108    o eesupp (global_max & global_sum):
109     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
110     - remove starting & endding barrier (no longer needed)
111    o pkg/mdsio, writelocal:
112       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
113       (remove the STOP): uses shared buffer IO to store data from all threads
114       and then let master-thread write nThreads tiles.
115    o pkg/mdsio (read/write field):
116     - tiled IO done in 1 piece (all levels at a time);
117     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
118     - multi-threaded: allow to read/write local (non-shared) array
119       (was already working with singleCpuIO ; now works also without);
120       => no longer needs barrier call after reading a file (added inside
121       mds_read/write field).
122     - move barrier calls outside gather/scatter_2d to mds_read/write_field
123    o pkg/obcs/exf
124      - exf_getffieldrec.F: add a few ". _d 0" and
125                            add code to catch the case fldperiod = 0.  
126      - obcs_precribe_read.F: change if statements so that they match
127                              the variable type (_RL)
128      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
129        exf_iprec) as part of namelist EXF_NML_01
130    o pkg/mdsio:
131      - read/write tiled (local) files: read/write 1-level tile chunk at a time
132        (instead of segment of length sNx); expected to speed up tiled IO.
133    o pkg/exch2:
134      - take buffer copy from/to array out of S/R exch2_send/recv into new
135        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
136        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
137      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
138      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
139        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
140        including Topology header file (and common blocks).
141      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
142        remove 2nd exch call in exch2_s3d_rx (no longer needed).
143      - document S/R arg. list (+ update some comments)
144    o pkg/seaice:
145      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
146        temperature and humidity over sea ice based on climatological values.
147      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
148        of LSR (this change is expected to change the results slightly because now
149        it uses slightly difference moduli from the second last LSR solution, but
150        that is more consistent with the stress computations; this part of the code
151        is not tested in the verification experiments)
152      - fix diagnostics for flux of ice in case of B-grid
153      - turn strain rates eij and press into global fields within global
154        common block in SEAICE.h for more straighforward diagnostics
155      - fix diagnostics for principal stress components, press, zeta, eta
156        to give something meaning full
157    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
158      new output (all 4 tests) using default rotationPeriod.
159    o pkg KPP:
160      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
161      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
162        and normal grid from 1 to Nr)
163    o Fix computations of L4rdt in mom_calc_visc.F
164    o eesupp:
165      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
166      should be called before a "stop" if we know that all process are going
167      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
168    
169    checkpoint61o
170    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
171    o model/src/ini_curvilinear_grid.F:
172       compute angleSin/CosC when they are not read from a file
173    o pkg/seaice:
174       add pseudo time stepping for LSOR
175    o pkg/exch2:
176       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
177    o pkg/seaice:
178       Adding separate sea ice albedo, drag coefficients, and HO in Southern
179       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
180    o SingleCpuIO:
181       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
182    o pkg/seaice:
183       put exchanged variable in (local) common block for MPI+Multi-Threads
184       to work (necessary with exch1, and for now with exch2 too).
185    o verification: to get more experiments tested with mpi, mth and mpi+mth,
186      change tiling of:
187       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
188       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
189      update output of exp:
190       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
191       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
192      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
193                       (note: output.txt generated on faulks using only 1 tile)
194    o eesupp & mdsio (SingleCpuIO):
195     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
196       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
197       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
198     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
199     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
200       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
201    o pkg/exch2:
202     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
203       read parameter file "data.exch2" if it exists; otherwise try default regular
204       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
205     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
206       with new code (not to be used, just as a backup solution).
207     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
208       in utils/exch2/input.
209    
210    checkpoint61n
211    o eesupp & mdsio (SingleCpuIO):
212      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
213        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
214        receive real*4 array (instead of real*8) to read/write 32.bit files.
215        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
216         and remove new mapping S/R)
217    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
218      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
219        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
220        when using exch2. Add S/R to map global io-buffer to global model array.
221      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
222    
223    checkpoint61m
224    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
225      and add 3 other S/R for other types (R4,R8,RS).
226      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
227    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
228     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
229     - reduce number of macro definitions (keep only those which are used);
230       can always call directly the corrresponding S/R if needed.
231     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
232       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
233     Fixed wrong type of arg in:
234       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
235       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
236     To fix: global_sum of var in common block is wrong (multi-threaded) in:
237       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
238     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
239    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
240      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
241    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
242    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
243      edges are closed (zero depth); might happen with "blank tiles";
244      for now, disabled if using OBCS.
245    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
246      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
247    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
248      to reduce length of 1.D array print in STDOUT.
249    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
250      + use 48 tiles (16x8): this will allow to test "blank tiles".
251    o start to test MPI + multi-threaded (change testreport to skip tests
252      where number of tiles do not match).
253    o genmake2: add option "-omp" to turn on Open-MP ;
254      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
255    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
256      and keep the original tile numbering. Note: compatible with old
257      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
258    
259    checkpoint61l
260    o Overlaps had been forgotten in calculating ijk keys : fixed
261    o fix cyrus makedepend for gcc 4.4
262    o experiment fizhi-cs-aqualev20:
263      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
264      and generate new output. Note: new output is much closer to the old
265      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
266      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
267    o pkg/fizhi:
268     - change to avoid indices going deliberately over array-bounds
269     - remove unnecessary MPI stuff
270     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
271     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
272       does not go over array-bounds and therefore returns reliable output.
273     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
274       this S/R has 4 output arguments, which are used inside "get_alarm";
275       when it is called with the same variable "ndum" in place of several
276       output arguments, this produces weird side effect inside "get_alarm"
277      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
278       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
279       address) and produces error.
280    o tools/gemake2: (March 27-29 2009)
281      with option "-mpi": link *_mpi files from "MODS" dir (this is what
282      testreport does).
283    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
284    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
285       update lab_sea.lsr & lab_sea.salt_plume results
286    o pkg/seaice:
287      Major overhaul of the LSOR solver: change discretization from original
288      finite differences to finite volume. The old routine is still in the
289      file seaice_lsr.F and can be turned on with the CPP-flag
290      SEAICE_OLD_AND_BAD_DISCRETIZATION
291      Along with this change, the discretization of the strain rates is changed.
292      The same flag turns on the old discretization in seaice_calc_strainrates.F
293      All verification experiments with seaice are affected (except for
294      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
295      results by setting the above flag.
296      Further changes involve changes in defaults:
297      - ALLOW_FLOODING is defined and turned on by default
298      - SEAICEadvSnow = .true. is now the default
299      - SEAICEadvSalt = .true. is now the default
300      - SEAICEadvAge  = .true. is now the default
301      - SEAICE_clipVelocities  = .false. is now the default
302                                         (as per J. Zhang's recommendation)
303      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
304        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
305      - seaice_growth: replace computation of UG by a simple copy from wspeed
306    
307    checkpoint61k
308    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
309      seaice_lsr: fixed a few metric terms,
310                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
311                  add more debugging diagnostics
312      seaice_evp: removed superfluous many metric terms of FV discretization
313                  of stress divergence
314                  affects lab_sea, lab_sea.hb87
315      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
316                  of stress divergence for non-evp solver
317                  (this part is not tested anywhere)
318      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
319                  they were effectively only half slip
320                  affects lab_sea.hb87
321      updated all relevant verification experiments (except lab_sea//output_adm.txt
322        which was left over, but fails at level 7 & 6)
323    
324    checkpoint61j
325    o pkg/seaice: turn a few hard wired parameters into run time parameters
326    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
327      time in seconds as promised by the usints in seaice_monitor and exf_monitor
328    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
329      that are not cubed-sphere grids
330    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
331    o pkg/ctrl:
332      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
333    o non-hydrostatic (calc_gw.F):
334      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
335      update output of exp. global_ocean.cs32x15.viscA4
336    o remove backward compatibility for thetaMin,phiMin
337      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
338    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
339      interpolated wind field not only for curvilineargrid=.true., but also
340      for a rotated grid (rotateGrid=.true.)
341    o pkg/exf: add capability to bypass interpolation for runoff
342      by setting yet another CPP-flag
343    o eesupp/src, B-grid exchange:
344      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
345    o autodiff
346      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
347      allows to switch to single-prec common blocks;
348      corresponding switch occurs in tamc.h, integer isbyte
349      TAF store directivs "byte" and "kind" seem equivalent;
350      Most tamc.h have been updated correspondingly.
351    
352    checkpoint61i
353    o autodiff:
354      fix autodiff_sore/_restore indices for obcs
355      (spotted by I. Hoteit, M. Mazloff)
356    o pkg/autodiff, pkg/ctrl:
357      Add flag to reduce all tapelev I/O to single-prec.
358      In data.ctrl set
359        doSinglePrecTapelev = .TRUE.
360    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
361      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
362    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
363      real fresh water flux (not yet)
364    o pkg/mdsio & rw:
365     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
366     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
367    o pkg/flt:
368     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
369       init_fixed & ini_varia.
370     - clean-up & simplify linear interpolation S/R:
371       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
372     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
373     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
374     - add vert. coordinate & horiz. indices to output files.
375     - change vertical position in initial condition, from index to depth [m].
376     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
377       (easier to get to a curvilinear grid) ; delX,delY no longer used.
378    o pkg/ggl90: a few modifications:
379     - fix bottom boundary condition, and interpolation of KappaE
380       near top and bottom
381     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
382     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
383     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
384    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
385      (maintain temporary backward compatibility, until next checkpoint)
386    
387    checkpoint61h
388    o pkg/diagnostics with "periodic averaging diagnostics":
389      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
390    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
391    o pkg/obcs: fix loop ranges for balancing code
392    o pkg/flt:
393     - improve criteria for finding which tile owns a float.
394     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
395    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
396      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
397      with ocean biogeo)
398    o pkg/flt:
399     - do some cleaning and fix the restart ;
400     - add output.txt in flt_example/results to get this pkg tested.
401    o genmake2: add an EXTENDED_SRC option and flag.
402       for now, cannot be turned on on command line (only through genmake_local)
403    o pkg/mdsio: read/write vector:
404     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
405     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
406       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
407     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
408      (drop to 4 digits matching for grad). But this test does not look very
409      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
410    
411    checkpoint61g
412    o pkg/flt:
413      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
414       + make OPTIONS file more standard.
415      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
416      - fix _BYTESWAPIO CPP-Flag
417      - standard reading of file-parameter "data.flt"
418      - fix argument list of S/R FLT_RESTART
419      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
420    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
421    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
422      a still unfixed compiler/optimization bug
423    
424    checkpoint61f
425    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
426      update results of global_ocean.cs32x15.icedyn test.
427    o move getcon.F from model/src to pkg/fizhi.
428    o pkg/exf: add parameter for extrapolation of temp up to the surface
429       and option to prevent negative evap (in bulk_largeyeager04 only).
430    o Prather Advection scheme: fix tracer conservation for divergent flow
431      (e.g., when using NonLin Free-Surface).
432    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
433    o gmredi (Visbeck-variable-K):
434     - add more parameters to Visbeck-variable-K.
435     - use a 5 points average for dSigmaR in Visbeck-K calculation
436       (more "homogenous": same stencil and same weights as in dSigmaH)
437     - update output of ideal_2D_oce experiment.
438    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
439      (#undef REAL4_IS_SLOW)
440     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
441       coordinate variable
442     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
443       (surface forcing fields), removes some of the functionality
444     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
445     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
446       probably not all: copy _RS surface flux fields to RL field before
447       calling DIAGNOSTICS_FILL
448     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
449       real*4 (CALL EXCH_*_RS) versions.
450     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
451       (generate new output).
452    
453    checkpoint61e
454    o gmredi (Visbeck-variable-K):
455      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
456      - change computation of Visbeck-K where Slope > Smax :        
457        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
458        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
459    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
460      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
461    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
462    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
463      does not become too large (to avoid precision problems in implicit-diffusion
464      solver); update ideal_2D_oce output.
465    o pkg ggl90:
466      - in ggl90_cal.F: compute only one set of visc/diff, used to
467        step forward TKE/T/S/momentum
468      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
469        have Prandlt =1)
470    o gmredi (fm07):
471      - add lower limit on Transition layer thickness + lower limit on 1/lambda
472      - allow to set few more params from data.gmredi
473    o pkg ggl90:
474          - add missing sqrt(2) factor in computation of mixing length
475            scale in ggl90_calc.F
476            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
477    
478    checkpoint61d
479    o adjoint modifs
480      - adapt to new field rhoInSitu
481      - allow to revert from StoreDynVars2D, StoreDynVars3D
482        to individual fields
483        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
484    o store 3-D (in-situ) density in commom block (DYNVARS.h)
485     - save 1 rho computation.
486     - no longer modify T & S inland when using down_slope pkg.
487    o gad_som : allow to switch to SOM advection for T & S without corresponding
488      pickup files (using new S/R: MDS_CHECK4FILE).
489    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
490      (for useSingleCpuIO to work in multi-threaded)
491    o pkg/shelfice:
492     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
493       with SHELFICEtopoFile in data.shelfice
494     - move code for reading ice shelf topography and modifying hFacC into separate
495       subroutines of the shelfice package
496     - separate initialisation of "fixed" and "variable" variables
497     - kTopC is not (yet) replaced by kSurfC, although this is possible
498    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
499    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
500      and rename:
501      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
502      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
503    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
504    
505    checkpoint61c
506    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
507      to add mass source/sink of fluid in the interior (3-D generalisation
508      of oceanic real-fresh water flux).
509    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
510    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
511    o new pkg: down_slope
512      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
513      - presently, modify T & S inland (dwnslp_calc_rho.F).
514        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
515      - implementation for ocean in P-coords not tested.
516      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
517    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
518      (to facilitate conversion of oceanic pkg to p-coordinate).
519    o change FIND_RHO to FIND_RHO_2D :
520      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
521    o new pkg: cheapaml
522    
523    checkpoint61b
524    o exch2:
525      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
526      - no longer depend on the order sequence (N,S,E,W).
527      - 3rd exchange no longer needed (tested with 24 tiles).
528      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
529      - exch_UV_A-grid readily available (but not yet tested).
530      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
531      (both are no longer needed) in exch_uv: no effect in forward run; but
532       get truncation error differences with adjoint exch.
533    o exch2:
534     - change index-bounds storage (moved from target to local tile,
535       more intuitive this way) ; rename/remove some variables.
536     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
537    
538    checkpoint61a
539    o exch2/matlab-topology-generator:
540      fix bug in index bounds for N-S internal exchange (hard to tell if this
541      had any effect on the solution).
542    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
543      is exceeded
544    o testreport: modify syntax of awk, so that it works also with
545      awk, and not only with nawk and gawk
546    
547    checkpoint61
548    o autodiff
549      Change default for TAF usage by removing argument '-nonew_arg'
550      This changes TAF subroutine argument list (ordering of active var.)
551      Omission of this flag leads to incompatibility w.r.t. TAMC
552      To restore TAMC-compatibility, need following modifs:
553      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
554      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
555      Tested TAF version is 1.9.22
556      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
557    
558    checkpoint60
559    --->>> This is the last checkpoint for which generating the adjoint
560    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
561    --->>> by default.
562    --->>> Future checkpoints will ommit this flag by default.
563    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
564    o pkg/grdchk: Add gradient check to etan0 perturbations.
565    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
566    o pkg/autodiff: more flexibility in zeroadj.
567      model/src: modifying do_oceanic_phys.F accordingly.
568    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
569    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
570      special setup of gmredi for which the adjoint is stable
571      enough for parameter optimization.
572    o bridging the gap between eddy stress and GM.
573      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
574          along with a change in CPP option (now ALLOW_EDDYPSI).
575      -> when using GM w/ GM_AdvForm:
576          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
577          is applied either in the tracer Eq. or in momentum Eq.
578          depending on data.gmredi (intro. GM_InMomAsStress).
579      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
580      The key modifications are in model/src/taueddy_external_forcing.F
581      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
582    
583    checkpoint59r
584    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
585      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
586      fix option to read coriolis(@ cell-corner) from files with CS-grid.
587    o pkg/mnc: add some attributes to standard 1D-coordinate variables
588    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
589      mass points, when using mnc for output
590      - add runtime parameter (missing_value, missing_value_int) to override
591        default (which is the value of getcon('UNDEF'))
592    o pkg/mnc: prepare mnc for the actual use of missing values with the
593      diagnostics package: small fix in mnc_cw_readwrite.template and more
594      initialisation of never used fields
595      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
596      versions
597    o pkg/thsice/thsice_ini_vars.F added default initial values so that
598      thermodynamics sea ice solver does not blow up when some initial fields
599      are missing.
600    o move from external_forcing_surf.F to ini_forcing.F
601      the p-coord. hack consisting in using pLoad to set phi0surf ;
602      update output of tutorial_global_oce_in_p (affected @ truncation level).
603    o Freshen up a bit hs94.1x64x5, notably:
604      remove rotationPeriod and tRef=5*0. (adjoint only), and add
605      exactConserv=.TRUE.
606    o pkg/generic_advdiff:
607      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
608      applies to files where Temperature & Salinity 2nd Order moments are used.
609    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
610      this uses a dynamically allocated internal state data structure
611      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
612      and requires a fortran 90 compiler
613    
614    checkpoint59q
615    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
616       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
617    o Refresh tutorial_global_oce_biogeo, notably:
618      - change bathymetry (put back seamounts in ACC, use hFacs)
619      - change EOS (POLY3 --> JMD95Z)
620      - use Bryan-Lewis vertical diffusivity
621      - use multidimensional advection
622      - remove old virtual virtual in dic pkg, now done through ptracer pkg
623      - change a couple of parameters in dic pkg
624    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
625    o pkg/obcs: change default to OBCSfixTopo = .true.,
626      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
627      - replace "debugMode" with "debugLevel .GE. debLevB"
628    o implementation of TAF directives for gchem,cfc,dic
629    o remove "exp5" (replaced by tutorial_deep_convection).
630    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
631      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
632      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
633      --> changes results in exp4, seaice_obcs
634    o tutorial_deep_convection :
635      update the set-up and increase resolution and domain size ; start
636      from pseudo initial conditions = output at t=120mn in order to see
637      something happening when running testreport.
638    o pkg/seaice: add os7mp as an advection scheme
639                  add check for advection schemes
640                  add a flag for restoring T and S underneath sea ice
641    o pkg/my82: add netcdf-support and diagnostics
642    o thsice pkg:
643      - Now hsMax limits snow height by turning it into ice following
644        flooding scheme (and now conserving energy)
645      - Slight rewriting of the formula in thsice_calc_thick.F
646      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
647      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
648    
649    checkpoint59p
650    o gchem / dic / cfc :
651      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
652      - add new parameter files: "data.dic" & "data.cfc" ;
653      - various re-arrangement in initialisation & header file ;
654      - fix tutorial_global_oce_biogeo for multi-threaded test.
655    o pkg/dic: test for "pickup_dic" file when restarting ;
656      if no pickup-file, can restart with a re-initialised pH (same as it did
657      before) providing pickupStrictlyMatch is set to False.
658    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
659      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
660    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
661      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
662    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
663     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
664       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
665    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
666       scheme to use for vorticty-term ;
667     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
668       (with default selectVortScheme, return to original discretisation)
669     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
670    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
671    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
672      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
673      also fix diagnostics VISCAHW & VISCA4W.
674    
675    checkpoint59o
676    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
677    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
678      move a few statemens out the main loop into separate loops
679    o pkg/shelfice:
680      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
681        (kg/m^2/s), does not break tests, because in verification/isomip,
682        rhoConstFresh=rhoConst (by accident)
683      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
684      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
685        new file model/src/seawater.F, so that they are available for all pkgs.
686      - convert potential temperature into in-situ temperature. This changes the
687        isomip tests => update tests
688    o add a flag writePickupAtEnd (default=true) to be able to suppress
689      writing a pickup at the last timestep
690    o tools/mpack-1.6 :
691      - disable automake (not working) and autoconf (not needed).
692      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
693        also cleaner with much less compilation warnings.
694    o pkg/profiles:
695      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
696      (for "less than 32 characters name" compiler requirement)
697    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
698      conditions that have a different sampling frequency than S/T/U/V obcs
699    o pkg/diagnostics (stats-diags):
700      - fix global Min/Max in case 1 processor get only empty tiles
701    o genmake2: replace (4 times)
702         make genmake_tc_1.o >> genmake_warnings 2>&1
703      with
704         COMM="$CC $CFLAGS -c genmake_tc_1.c"
705         echo $COMM >> genmake_warnings
706         $COMM >> genmake_warnings 2>&1
707      to make genmake2 always see the value of CC as specified in the optfile.
708    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
709      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
710      - modify verification advect_cs test to test SOM-advection on CS-grid.
711    o pkg/ctrl:
712      - Rewrite of ctrl_map_ini_ecco.F,
713        introducing a generic routine (ctrl_map_ini_gen.F).
714      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
715    
716    checkpoint59n
717    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
718      number in dedicate array "hdiag":
719      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
720        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
721      - many small changes (integer format) for large number of diagnostics
722      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
723        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
724    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
725      usingSphericalGrid, this allows to define the rotated grid coordinates
726      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
727      geographical coordinates according to the inverse of the rotation defined
728      by the Euler angles, so that Coriolis parameter and online-interpolation by
729      exf works with the geographical coordinates on XC/YC/XG/YG.
730      Naturally, this feature does not work with all packages, so some
731      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
732      profiles), because there the coordinates are assumed to be regular
733      spherical grid coordinates.
734    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
735      - introduce isopycnal diffusion coefficient control.
736    o tools/adjoint_options:
737      - additional control vector components.
738    o pkg/mnc: have mnc create marginally meaning full coordinate variables
739      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
740    o pkg/mypackage:
741      - add example of read/write pickup for state-var ;
742      - add entry points to the main code for state-vars diags & write-pickup.
743    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
744      transitions for useExfYearlyFields
745      - add new subroutine that determines the file to read from for
746        use*YearlyFields = .TRUE. and .FALSE.
747      - add a verification experiment to global_with_exf that tests
748        useExfYearlyFields with USE_EXF_INTERPOLATION defined
749    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
750      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
751      subroutines (which could be generated from a template, because they are
752      almost identical), for now they are included in obcs_prescribe_read.F for
753      simplicity
754    o pkg/exf:
755      - add a little more diagnostic to exf_interp_read (in analogy to
756        mds_read_field, can be turned off with debugLevel < debugLevA=1)
757      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
758        ugly but fast by unrolling short inner loops, inserting a unroll=8
759        directive in routine lagran, and splitting a loop and making do while the
760        outermost loop (the latter requires the intoduction of index arrays)
761    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
762    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
763      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
764    o verification/seaice_obcs: updated for restart test and latest options
765    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
766      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
767      for now this is only available for the C-grid code and also within
768      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
769    
770    checkpoint59m
771    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
772      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
773    o gad_som : fix flux output (& diagnostics) to have same units as other  
774      advection scheme fluxes (was previously multiplied by deltaT).  
775    o added verification/seaice_obcs both to test seaice open boundaries
776      and to provide an example matlab scrpt for generating them
777    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
778    o pkg/salt_plume: clean up salt_plume_frac.F to
779      remove redundancy in PlumeMethod 1 and 4
780    o pkg/kpp: added saltplume diagnostics
781    o pkg/obcs and pkg/seaice:
782      - do not set uice and vice to zero when OB*icefile are unspecified
783      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
784      - moved seaice tracer obcs after call to seaice_growth
785    o pkg/salt_plume: added various options for salt plume depth
786      criterion and for vertical distribution of the salt
787    
788    checkpoint59l
789    o pkg/ptracers: new version of ptracers pickup:
790      read meta file and write only fields which are needed to restart.
791      ( same logic as main pickup file ; also using pickupStrictlyMatch )
792    o pkg/seaice:
793      - add timescale for melting due to warm mixed layer as a means of
794        setting SEAICE_availHeatFrac more conveniently
795      - add a CPP-flag/runtime parameter check for flooding algorithm
796      - reformulated availHeat in seaice_growth.F to be independent of AREA
797    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
798      unit changes
799    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
800    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
801      SX vector computer.
802    o pkg/seaice:
803      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
804        seaice forcing fields can now be read only through pkg/exf
805      - removed some unused halos
806    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
807    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
808      or U/VICE from U/VWIND before computing U/VSTRESS
809    
810    checkpoint59k
811    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
812      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
813    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
814      all experiments pass when compile with un-initialised var. checking option.
815    o added pkg/salt_plume
816    o script to test restart (for now, in MITgcm_contrib/jmc_script)
817    o pkg/seaice: new read/write pickup version.
818      read meta file and write only fields which are needed to restart.
819      ( same logic as main pickup file ; also using pickupStrictlyMatch )
820    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
821    o lab_sea.hb87: modify the domain & update output.hb87.txt :
822      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
823      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
824      process. Fixed here by closing the domain at the Northern boundary.
825    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
826    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
827      a set of consecutive levels in/from a 3-D array.
828    o pkg/ptracers:
829      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
830      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
831    
832    checkpoint59j
833    o in pkgs: dic, obcs, offline, rbcs:
834      standard way to compute coeff. for time interpolation between 2 time reccords
835      which retains full precision (& make results less dependent on compiler).
836      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
837    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
838      packages instead of reading ice cover and wind speed separately
839    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
840     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
841      to allow to compile customized code before the update)
842    o cleaning-up:
843      - fix CPP instruction syntax in pkg/obcs
844      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
845        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
846      - fix some threads issue in IO parts.
847    o pkg/dic:
848      - add tons of "_d 0" (--> much better testreports !)
849       and then update outputs of tutorial_global_oce_biogeo
850    o pkg/mom_fluxform:
851      add a special version of momentum advection intended to conserve momentum
852      next to a bathymetry step or a coastline edge. (default = off = #undef)
853    o new read/write pickup version:
854      - for now, only implemented for main (mdsio) pickup file.
855      - write out only what is needed to restart; merge pickup_nh , pickup_ph
856        and main pickup together.
857      - read meta file; read only what is needed to restart; stop if a field
858        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
859        if it make sense (even if the restart is not perfect).
860      - if no meta file, assume that pickup to read corresponds exactly to
861        a pickup that would currently be written.
862      - read pickup written in the old format (until checkpoint59i) if it
863        recognizes an old meta file (no field-list).
864      - add a meta file in exp. which starts from a pickup: 2 cases:
865        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
866         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
867        b) a meta file describing the content of the associated pickup file
868         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
869    o pkg/mdsio & pkg/rw:
870      - new routine to read a meta file ; new set of routine to read
871        Multiple-fields file (with meta file).
872    o added open boundary conditions capability for seaice
873        HSNOW, HSALT, UICE, and VICE
874    
875    checkpoint59i
876    o adjoint:
877      * fix multiDimAdvection adjoint
878        (partial recomputation problem by TAF for fVerT(:,:,kDown)
879        and comlev1 size definition (maxpass vs. max. number of tracers)
880      * verification/global_ocean.90x45x15 adjoint now tests
881        NLFS and multiDimAdvection using DST3 (=30)
882      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
883    o pkg/kpp: add "_d 0" to real constant (if missing);
884      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
885      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
886    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
887      for internal parameters related to restart process (formerly from PARAMS.h)
888      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
889    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
890      as argument. (only atm2d & obcs write_pickup have not yet been updated)
891    o pkg/monitor:
892      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
893      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
894      - account for deep Atmosphere factor and density factor (anelastic)
895    o added open boundary conditions capability for seaice HEFF and AREA
896    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
897      thermodynamics
898      - requires a little reorganization, which affects the testreport results
899        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
900        so that now the conservative form is tested
901      - add a few comments
902    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
903    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
904    o add new diagnostics to seaice: advective, diffusive fluxes (only for
905      multidim-advection, for scheme 2 they are not filled) and transports,
906      thermodynamic growth rates
907    o change units of EmPmR (inside the code, + within coupling interface)
908      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
909      Affects results @ truncation level (cg2d match) and update output of
910       experiments: lab_sea(6), global_ocean.90x40x15(10),
911      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
912      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
913      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
914      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
915    
916    checkpoint59h
917    o pkg/exf:
918      - improve vectorization by moving if-statement out of loops in
919        exf_mapfields, exf_radiation
920      - exf_bulkformulae.F: introduce 2D fields and vectorize code
921    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
922    o testreport:
923      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
924        monitor & update offline_exf_seaice exp. output.
925      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
926    o pkg/seaice:
927      - bug fix in the evp solver: boundary conditions were affected be
928        masking of zMax/zMin (changes results)
929      - minor bug fix in boundary conditions in seaice_calc_strainrates
930        (changes results for no_slip)
931      - seaice_lsr.F: make interpolation of eta dependent on boundaries
932      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
933      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
934        stress formulation and no-slip boundary conditions
935    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
936      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
937    o pkg/seaice: a first HSALT time stepping equation has been checked in
938    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
939      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
940      without requiring DO-IF statements
941    o pkg/thsice:
942      use continuous power-law function for partition of energy between lateral
943      melting/freezing and thinning/thickening ; old code using step function
944      still available with #undef THSICE_FRACEN_POWERLAW
945      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
946    o testreport: change AD testing : check against results/output_adm.txt
947      using same scripts as for forward test.
948    
949    checkpoint59g
950    o adjoint testing: in preparation for changing testreport:
951      - output format: cost and grad written on separated lines
952      - ad output results in directory "results" (instead of "results_ad")
953    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
954    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
955    o pkg/ecco: allow user defined cost function contributions
956    o testreport:
957      Allow to choose (per experiment) the list of tested output variables
958       and the main variable (used to issue a pass/FAIL ) ;
959      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
960      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
961      Also modify printing of summary:
962       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
963       b) echo the list of tested variables in the individual summary.txt of
964          each experiment.
965    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
966      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
967      (but still depend on the tile decompostion of the domain).
968    o pkg/seaice: change a discretization detail to make the B-grid code
969      "more symmetric". This change is likely to remove all "ridges/leads" that
970      where quasi-aligned with the grid in B-grid solutions. It may also be
971      the solution to the stress coupling issues with the B-grid.
972    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
973      remove .cvsignore from input dir. (since testreport no longer run here).
974    o pkg/thsice:
975     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
976     - fix reshaping of sea-ice just after advection:
977       melt all the ice only if ice-volume is too small.
978     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
979       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
980     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
981    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
982      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
983    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
984      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
985      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
986      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
987      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
988      -> update output.txt
989    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
990     this affects truncation error: -> update output.txt of exp:
991      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
992      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
993    
994    checkpoint59f
995    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
996    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
997      a bounded range (in forward mode)
998    o pkg/ecco, ctrl, autodiff and mom_common:
999     internal parameter controls, completements of implementations
1000    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1001    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1002      (not seem any difference in testing results).
1003    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1004       at face corners.
1005    o pkg/generic_advdiff:
1006     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1007      loop range indices for computing vertical advection tendency
1008      and do the calculation in the interior only (no overlap) ;
1009      for now, only implemented for SOM advection (to save CPU time).
1010     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1011    o exch2 adjoint
1012      First set of changes:
1013      - add exch2 hand-written adjoint templates
1014      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1015        This will require cleanup in pkg/autodiff/*.F
1016        (changed routines currently kept separate in verif. code/)
1017      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1018        that used to hide exch2 or cubed-sphere specific code
1019        (commented via 'cph-exch2')
1020    o pkg/seaice
1021      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1022    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1023       output of global_ocean.cs32x15.thsice .
1024    
1025    checkpoint59e
1026    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1027      for B-grid vector (not yet tested) and C-grid vector (<- only used
1028      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1029    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1030      (#ifdef ALLOW_SALT_PLUME)
1031    o gather_2d/scatter_2d: removed halo regions
1032    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1033      scheme and the corresponding test case (under front_relax dir). For now,
1034      only available with Skew-flux form and not yet tested in realistic set-up.
1035      adjoint: store directives updated, but gradient checks deteriorated,
1036      so maybe GM/Redi adjoint is now broken.
1037    o seaice adjoint
1038      * add AREA, HEFF, HSNOW as control variable
1039        (should not change lab_sea results)
1040      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1041    o pkg/seaice:
1042      * added computation of saltFlux in seaice_growth;
1043        For time being, sea ice salinity is assumed constant
1044        contribution of snow flooding to freshening of sea ice is neglected.
1045        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1046        defaults to 0.0 in order to maintain backward compatibility.
1047        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1048      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1049      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1050        heat content used to melt or grow ice
1051      * commented out cap of HICE: it helps keep ice thinner
1052      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1053      * applied OBCS T/S mask to HEFFM sea ice mask
1054    
1055    checkpoint59d
1056    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1057     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1058     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1059    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1060     and change default value of parameter "GM_Small_Number";
1061     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1062       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1063       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1064    o pkg/ecco: cost function when applying pkg/smooth to controls
1065    o pkg/ctrl: add forcingPrecond run time parameter
1066    o pkg/seaice:
1067     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1068     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1069       changes verification/lab_sea
1070     - rearrange implicit part of u-equation in LSR solver to make it easier to
1071       read, understand, and debug. This causes changes at the truncation level.
1072     - fix (serious) bug in the boundary conditions (sign error in the implicit
1073       part) of the LSR solver. Changes all LSR results.
1074     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1075       is initilized with small values - does not change lab_sea results.
1076     - added HsnowFile initialization capability
1077    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1078     initialization of pkg/smooth and application to control vector
1079    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1080    o dependencies: pkg/profiles requires pkg/cal
1081    o pkg/profiles:
1082     - added option ALLOW_PROFILES_GENERICGRID
1083         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1084         that interpolation information (grid points and coefficients) is provided
1085         within the netcdf input files.
1086         -> sample matlab scripts can be found in MITgcm_contrib/gael
1087         that allow you to prepare netcdf input files.
1088     - also modified: cleaner include statements, cleaner error print statements,
1089       cleaner stops when error, and more tests of the netcdf input files consistency.
1090    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1091    o pkg/seaice:
1092     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1093       requires a new routine: seaice_diagnostics_fill.F
1094     - make sure that seaice does not move if not forced (pressure replacement
1095       method, Hibler and Ip, 1995), changes results
1096     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1097     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1098       It is turned off by default (=-1.), because it changes the results.
1099     - make it possible to read AREA from a file, too.
1100    
1101    checkpoint59c
1102    o add S/R and diagnostics for oceanic mixed-layer depth
1103    o move GMRedi call after all vertical mixing schemes (including KPP)
1104    o pkg/thsice:
1105     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1106      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1107    o pkg/obcs:
1108     - bug fix for balance code
1109    o pkg/seaice:
1110      - allow values of SEAICE_elasticParm > 1
1111      - add new parameter SEAICE_evpTauRelax as an alternative
1112        to SEAICE_elasticParm
1113      - make lsr boundary conditions free slip (by default), changes result
1114      - add code for no slip boundary conditions for lsr
1115      - set minimum of zeta to zero (and not 4e8) (changes results)
1116      - add a cap on AREA after advecting AREA if seaice_growth is not called
1117    o change calculation of Visbeck K:
1118      - no longer depend on tapering scheme; instead, compute slope (limited
1119        by GM_maxSlope). this is equivalent to what was comuted before with
1120        clipping or linear tappering.
1121      - fix vertical averaging (wrong by 1/2 level)
1122      - leave the old version (but will not be maintained) within
1123        #ifdef OLD_VISBECK_CALC / #endif
1124      - update output of exp. ideal_2D_oce
1125    o change error catch in calc_r_star to improve vectorization
1126    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1127      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1128    o adjoint:
1129      Re-organized adjoint checkpointing according to Matt Mazloff
1130      (but with modifs/completions/cleanups)
1131      Storing is now bundled into large arrays to optimized I/O
1132      (and second step in cleanup of the_main_loop)
1133    
1134    checkpoint59b
1135    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1136      - export/import (between ocean & coupler) fields needed for ocean DIC.
1137    o pkg/seaice:
1138      - get rid of three more exchanges seaice_calc_viscosities (required
1139        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1140      - bug fix in seaice_ocean_stress (update of lab_sea required)
1141      - reduce loop boundaries to necessary minimum also in seaice_evp
1142      - go back to the old way of computing deltaC/Z as the adjoint likes that
1143        better
1144    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1145      passive tracer to an Age Tracer) + update output.txt
1146    o pkg/exf:
1147      - implement A-grid / C-grid selection for wind-stress input files.
1148      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1149      for now, in exf_bulk_largeyeager04.F only :
1150      - change implementation for case where windspeed + 2. components wind-stress
1151        are read-in. AND use rhoConstFresh to convert evap.
1152    o pkg/seaice:
1153      - use correct EXCH_UV for wind-forcing (on A-grid).
1154      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1155        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1156    o pkg/exf:
1157      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1158      EXF_INTERPOLATION:
1159      - merge global_with_exf/code version of exf_interp_read.F
1160        to the main code ;
1161      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1162        reading the file ; Important: This options needs to be defined to recover
1163        previous code.
1164        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1165      - no longer loose real*8 precision along the way when using exf_iprec=64.
1166    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1167      - change discretisation of evp-solver in order to avoid another exchange
1168        (changes lab_sea) and clean up a little
1169      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1170        help the adjoint (this also changes the results slightly)
1171      - add a few "_d 0" where they had been missing in seaice_evp.F
1172      - cleaning up: remove unused seaice_calc_rhs.F
1173    o pkg/exf: some cleaning-up:
1174      - change various "constants" into runtime parameters
1175      - cleaned-up Large&Yeager04 routine which should eventually
1176        replace exf_bulkformulae.F (changed names of S/R and CPP)
1177        and merged various ALLOW_ATM_WIND options
1178     only used with thsice pkg (in thsice_get_exf.F):
1179      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1180        which are used when useStabilityFct_overIce=TRUE (= the default)
1181      - change default values of ice & snow emissivity and scale downward LW
1182        by ice & snow emissivity.
1183    o pkg/thsice:
1184     fix few little problems, in thsice_calc_thickn.F:
1185      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1186      - melt only laterally if hIce < hThinIce (as the comments say)
1187      and in thsice_extend.F:
1188      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1189      - start to form ice as soon as the minimum ice-volume is reachable.
1190     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1191      and cpl_aim+ocn
1192    o pkg/kpp
1193     - move computation of surface related input fields to KPP into a new
1194       subroutine kpp_forcing_surf.F
1195     - remove wrong (within bi,bj loops) EXCH calls.
1196     - little cleaning (add argument myThid in last position, cvs header ...)
1197     - for now, fix conservation problem by exchanging KPPviscAz (may not
1198       be the best fix)
1199    o pkg/seaice
1200     - check for inconsistent evp parameter/cpp-flag combination
1201     - remove leftover errIO flat for obsolete name list error handling
1202    o OpenAD
1203     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1204    
1205    checkpoint59a
1206    o pkg/seaice: some parameter clarifications and a little bit of clean up
1207    o pkg/thsice: rename run-time parameters:
1208       himin       -> hIceMin
1209       himin0      -> hThinIce
1210       hihig       -> hThickIce
1211       i0          -> i0swFrac
1212       transCoef   -> bMeltCoef
1213       frac_energy -> fracMelting
1214      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1215       with default values (for now) that do not change the results.
1216      remove old version of thsice vars advection in pkg/seaice.
1217    o in FFIELDS.h:
1218      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1219      - make pLoad & sIceLoad always available (but still only used if
1220         ATMOSPHERIC_LOADING is #define).
1221    o pkg/kpp: replaced _KPP_RL with _RL
1222    o bug fixes for vertical diffusivity computations when both KPP and
1223        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1224        are no longer updating the vertical diffusivity array
1225        (passed as argument) but are (re-) setting those arrays.
1226    o pkg/seaice: fix bug in evp solver, while doing that
1227      - change (improve?) discretization of stress computations for both
1228        cgrid-lsr and evp solver
1229      - add a new routine to compute strain rates
1230      - the above changes lab_sea results
1231      - add no slip conditions for evp solver (off by default), lsr-version
1232        may follow
1233      - fix exchange for shear at Z-points (does not change lab_sea)
1234      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1235        (to force the user to pick a time step since there is not "safe" way
1236        of choosing it)
1237      - add principal stress diagnostics
1238      - rearrange fields for evp a little to avoid having to call a: too many
1239        exchanges and b: exchanges for stress trensor components which we do
1240        not have.
1241      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1242        of evp, complete rewrite for lsr case (latter is does not yet work
1243        in all cases)
1244    o pkg/kpp: add code to have mixing in shelf ice caverns
1245      - add myThid to all kpp routines (long overdue)
1246    
1247    checkpoint59
1248    o pkg/exf:
1249      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1250        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1251      - move exf header files from lower_case.h to UPPER_CASE.h ;
1252        add missing cvs Header & Name
1253      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1254      - add namelist param. selectStressGridPosition, exf_monFreq
1255      - retire many _CLIM routines, and remove data.exf_clim
1256        + params moved to data.exf
1257        + climsst, climsss now handled by exf_set_gen, i.e.
1258          climss?period=0 refers to constant field,
1259          climss?period=-12 to monthly forcing
1260      - split up namelists in data.exf
1261    o pkg/seaice:
1262      - remove seaice_exch and seaice_exch_uv
1263      - remove superfluous exchange of theta
1264      - add myThid to seaice_budget_ocean/ice
1265      - add new interface for atmospheric wind forcing (C-grid only)
1266        + new routine
1267        + two new field (taux, tauy for stress over ice)
1268        + removed one global field (DAIRN) for C-grid case only
1269    o pkg/thsise
1270      - 2nd set of modifs for thsice adjoint in conjunction with exf
1271    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1272    
1273    checkpoint58y_post
1274    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1275      vertical diffusivity, similar to that in MOM4; turned on using
1276      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1277      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1278    o Added capability for 3D specification of background vertical diffusion
1279      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1280      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1281      "data" file that contains the 3D vertical diffusivity coefficients.
1282    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1283      - add code within pkg thsice to advect & diffuse sea-ice fields
1284      similar to (and will replace) what has been added in  seaice_advdiff.F,
1285      but: - conserving Mass, Heat & Salt.
1286           - better when using non-linear advection scheme (not yet fully tested)
1287           - can also be used in atmospheric set-up (for now, only the diffusion).
1288    
1289    checkpoint58x_post
1290    o IO option for global-file compact format:
1291      - add options when generating topology (utils/exch2/matlab-topology-generator)
1292      - add I/O capability (pkg/mdsio).
1293      - adapt utils/matlab/rdmds.m to read this format.
1294      for now long-line format not yet supported by pkg/mdsio (& exch2).
1295    o shelfice: add a few diagnostics
1296    
1297    checkpoint58w_post
1298    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1299      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1300      (and replace horiVertRatio in NH code).
1301      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1302                         and tutorial_plume_on_slope (sensitive to truncation)
1303    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1304      directly to drive seaice model (C-grid only)
1305    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1306     - reintroduce computation of wind from stress,
1307     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1308       mass points to avoid tau = 0
1309     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1310    o rdmnc.m: make it work with "global" files created with gluemnc
1311    o rdmnc.m : some improvements in dealing with singleton dimension
1312      (tested on all testreport mnc output files).
1313    o genmake2: disable pkg/profiles if netcdf test fails.
1314    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1315    o move call to cal_readparms up to make calendar parameters/variable available
1316      to all packages
1317    
1318    checkpoint58v_post
1319    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1320      useDynP_inEos_Zc tested.
1321    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1322    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1323      and portions thereof.  See read_cs.txt for description and examples.
1324    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1325      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1326      following the great-circle arc between those 2 points.
1327    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1328      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1329    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1330     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1331     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1332     - still needs work (not working with some options ; efficiency to improve)
1333       and serious testing.
1334     - use this scheme for temperature & salinity in 2 advection test exp.:
1335       advect_xy & advect_xz, respectively.
1336    
1337    checkpoint58u_post
1338    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1339    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1340    o testreport: add option "-skipdir" to skip some test.
1341    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1342      momentum calculation.
1343    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1344    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1345      remove checkpoint.F and the_correction_step.F (no longer used);
1346      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1347    o add option (linFSConserveTr) to correct for tracer source/sink due to
1348      Linear Free surface
1349    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1350    o pkg/thsice: fix reading mnc-pickups
1351    
1352    checkpoint58t_post
1353    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1354    o pkg/mdsio:
1355     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1356       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1357       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1358     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1359     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1360       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1361     - new S/R (to replace MDSWRITEMETA), which allows to write more
1362       informations (variable names, time ...) to meta files.
1363     - modify rdmds.m to give back the meta file content.
1364    o pkg/diagnostics: change vertical interpolation to be safer, and more
1365       flexible (define p-levels to interpolate to in data.diagnostics);
1366      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1367       diagnostic pointer.
1368    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1369    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1370    o fix multi-category seaice:
1371     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1372       SEAICE_MULTICATEGORY
1373     - fix short wave heat flux
1374    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1375       and allow to use EVP solver. Change forward lab_sea: test both EVP
1376       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1377    o Initial check-in of lab_sea adjoint
1378      (very similar to natl_box_adjoint/code_seaice)
1379      * used C-grid and EVP solver
1380      * used KPP, GM/Redi
1381      * uses inAdExact=.TRUE.
1382      * gradient checks fail for both ADM and TLM
1383        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1384        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1385        issue is related to forward mismatch between g77 an ifort
1386    o pkg/seaice: overhaul of thermodynamics
1387     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1388     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1389     - move a few global fields out of SEAICE.h into seaice_growth.F and
1390       make them 2D (FICE/QNETO/ ...)
1391     - remove FO (it is the same as QNETO)
1392     - introduce a few local fields to avoid modifying external fields such
1393       as atemp, etc.
1394    
1395    checkpoint58s_post
1396    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1397      changed exf_set_gen.F so that
1398        genperiod=0 means input file is one time-constant field and
1399        genperiod=-12 means input file contains 12 monthly means
1400    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1401      this affects truncation error ; generate new output file for exp. which
1402      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1403        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1404        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1405        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1406        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1407        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1408    o start implementation of deep-atmosphere and anelastic formulation
1409    o verification: remove 2nd copy of input files and use script "prepare_run"
1410      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1411    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1412    o profiles: fix for multithreaded case
1413    
1414    o diagnostics: rename few diags:
1415      s/'PRESSURE'/'RCENTER '/g
1416      s/'TICE    '/'oceFreez'/g
1417      s/'TAUX    '/'oceTAUX '/g
1418      s/'TAUY    '/'oceTAUY '/g
1419      s/'SWFLUX  '/'oceQsw  '/g
1420      s/DIFx/DFxE/g
1421      s/DIFy/DFyE/g
1422      and add few ocean-forcing diagnostics:
1423      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1424    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1425      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1426      as actual snow thickness.  It now refers everywhere to effective snow
1427      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1428    
1429    checkpoint58r_post
1430    o modifications to pkg/seaice/growth.F, which change results of
1431      lab_sea experiment: fixes pertain to melting snow over open water, to
1432      masking EVAP under sea ice, and to using the correct AREA variable for
1433      computations of EVAP, PRECIP, HSNOW, and GHEFF
1434    o add ability to read bathy, salt, and theta using MNC (off by def)
1435    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1436      both are turned off by default and do no change any results
1437    o seaice advection with pkg/thsice: a step toward the use of non-linear
1438      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1439    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1440      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1441      in natl_box (affects results @ truncation level: update output.txt)
1442    o multi-threading and IO:
1443      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1444      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1445        (needed to work with SingleCpuIO): tested in all verif. exp.
1446    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1447      affects the results (but none of the verification test uses this scheme).
1448    o Adding some pkg/diagnostics capability to pkg/seaice
1449      (will certainly be subject to changes)
1450    o ctrl: adding new control variables:
1451      lwflux, lwdown, evap, snowprecip, apressure, runoff
1452    
1453    checkpoint58q_post
1454    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1455      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1456      high_res_cube configuration by 4% on Columbia.
1457    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1458      add (in global_with_exf/code) a version of EXF_INTERP_READ without
1459      dynamical allocation (seems to work in multi-threaded).
1460    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
1461      single CPU io) so that TAF does not have to see EESUPPORT.h
1462    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
1463    
1464    checkpoint58p_post
1465    o obcs: stop if obcs is used with useCDscheme = .true.
1466    o shelfice:
1467     - fix a sign error so that no slip at shelfice interface works
1468     - remove stop for combination non-hydrostatic code and shelfice. That does
1469       not mean, that the results are correct, but at least they are numerically
1470       stable
1471    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
1472    o added adjoint exch routined for all exch*3d* routines
1473      and updated flow directives
1474    
1475    checkpoint58o_post
1476    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
1477      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
1478    o change controling S/R for writing pickup file (new S/R do_write_pickup)
1479      and clean-up reading/writing of pickup files.
1480    o fix local version of read/write pickup (NH part) in rotating_tank/code
1481    o simplify EXCH interface:
1482     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
1483     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
1484    o added the regrid package
1485    o shelfice:
1486     - add a simple boundary layer scheme to reduce noise
1487     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
1488    
1489    checkpoint58n_post
1490    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
1491       local variable (not in common block).
1492    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
1493      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
1494      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
1495        to work with SingleCpuIO.
1496    o add "_d 0" to real constant of pkg/cfc subroutines ;
1497       update exp. cfc_exemple & tutorial_cfc_offline output files.
1498    o multi-threading and IO:
1499      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
1500        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
1501      - barrier before and after reading.
1502      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
1503      - avoid using MDS_WRITELOCAL for LAND pkg output.
1504      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
1505        common-block variables ; Allows multi-threading with master-thread IO.
1506    o change default MAX_NO_THREADS from 32 to 4 ;
1507      and stop cleanly when MAX_NO_THREADS is too small.
1508    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
1509    
1510    checkpoint58m_post
1511    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
1512       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
1513    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
1514       keep global_ocean.90x40x15 (for AD testing) with former secondary test
1515       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
1516    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
1517        add MITgcm_tutorials (= code + all the tutorials)
1518    o ecco, option to compute cost for total ssh (mean+anom)
1519    o consistent with addition of ptracer and ssh in pkg/profiles
1520    o profiles: adding ptracer and ssh
1521    o testreport: change multi-test output-file name
1522      (from output.txt.{name} to output.{name}.txt)
1523    o profiles: now ok for mutli-tiles case
1524    o seaice: add 4 parameters for different advection schemes for area,
1525      (effective) seaice thickness, enthalphy, and snow height. Their default
1526      is the standard parameter SEAICEadvScheme
1527    o calc_gw:
1528     - add cosFacU in zonal viscous flux (harmonic.visc.).
1529     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
1530       of tutorial_plume_on_slope.
1531    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
1532    o calc_gw: true flux-form, account for horizontal grid spacing.
1533      update rotating_tank results, but not plume_on_slope (affected at
1534      truncation level, 11 digits).
1535    
1536    checkpoint58l_post
1537    o calc_gw:
1538     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
1539     - remove side-drag for now (need to fix it); update plume_on_slope results.
1540     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
1541    o commit code to make SST/SSS weights spatially variable
1542      (based on either variable in-situ or variable initial T/S weights)
1543    o pkg/ecco:
1544      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
1545        now based on horizontally varying weights wthetaLev, wsaltLev
1546      * cost_averagesflags now returns year indices in addition to day, month
1547      * sflux balance is performed on annual basis
1548        (sflxumm, sfluxmm2, bal_sfluxmm)
1549      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
1550        including separate counting and multipliers
1551    o pkg/rbcs
1552      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
1553    
1554    checkpoint58k_post
1555    o testreport:
1556     - always build in dir. "build" (if not there, mkdir build instead of building
1557       & running in input)
1558     - run in dir run (if it exists), in build otherwise.
1559     - call prepare_run (if input/prepare_run exists)
1560     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
1561    o pkg/exf modifications to interpolation and rotation routines for more
1562       reasonable treatment of North Pole singularity: for tracers North Pole
1563       value is set to northernmost zonal-mean value, for zonal velocity it is
1564       set to zero, and for meridional velocity it is set to northernmost value.
1565    o pkg/exf/exf_check_range.F
1566     - add tile index to diagnostics and move stop statement to the very
1567       end of the routine.
1568    o pkg/diagnostics: (diagnostics_main_init.F)
1569      define title of isomorphic variables according to the current config.
1570    o pkg/thsice with pkg/seaice dynamics:
1571    - fix domain of computation (interior only, required for exf) and do exchanges
1572    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
1573    o towards a standard way of dealing with multi-threading in MONITOR
1574      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
1575    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
1576       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
1577    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
1578    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
1579    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
1580       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
1581    o tracer advection:
1582     - clean-up and simplify calc_common_factors.F
1583     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
1584       advection subroutine (but still not used within DST advection S/R)
1585    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
1586    
1587    checkpoint58j_post
1588    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
1589      from file (collects calls previously in FORWARD_STEP)
1590    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
1591    o adjoint store dir. adjusted accordingly
1592    o genmake2
1593      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
1594    
1595    checkpoint58i_post
1596    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
1597      on wind stress (SEAICEstressFactor defaults to 1.)
1598    o Total number of Timers is finite (<=40): comment out 2 non-essential one
1599      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
1600    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
1601      on CS-grid: no longer loosing mass.
1602    o exf & curvilinear-grid: no longer modify longitude xC & xG.
1603    o pkg/ggl90: fix sloppy output and fix a bug
1604    o pkg/seaice: added SEAICEuseEVPpickup parameter
1605      - Set to false in order to start EVP solver with
1606        non-EVP pickup files when using SEAICEuseEVP
1607      - fix sign error in diffusion in seaice_calc_rhs
1608    
1609    checkpoint58h_post
1610    * Modifications for bottom topography control
1611      o replace hFacC by _hFacC at various places
1612      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
1613      o add non-self-adjoint cg2d_nsa
1614      o update autodiff support routines
1615      o re-initialise hfac after ctrl_depth_ini
1616      o works for 5x5 box, doesnt work for global_ocean.90x40x15
1617    * Adding verification for 5x5 box (4-layer) bottom topography control
1618    
1619    checkpoint58g_post
1620    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
1621       used for mean seasonal cycle, mean diurnal cycle); add an example
1622       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
1623    o pkg/ggl90:
1624      - add parameter (minimum surface kinetic energy)
1625      - fix bug (avoiding division by zero)
1626    o couple pkg/thsice to pkg/seaice:
1627      - modify advection in seaice to accomodate new scalar fields to be advected
1628      - only muliDimAdection scheme work with seaice/thsice
1629      - mapping of thsice-variables to seaice-variables, back and forth
1630      - does not break the verification experiments, but does not give the
1631        desired results either
1632    o pkg/seaice
1633      - make (default) second order advection a bit less confusing?
1634    
1635    checkpoint58f_post
1636    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
1637      to pkg/seaice):
1638      - new routines thsice_map_exf and thsice_get_exf provide the interface
1639      - add an additional formal parameter to thsice_solve4temp
1640    o pkg/exf:
1641      - add new fields wspeed, snowprecip (to be able to couple to thsice)
1642      - correct Stefan-Boltzmann constant
1643      - new parameter for longwave surface emittance
1644      - separate some stuff from exf_bulkformulae into new routines  
1645        exf_radiation, exf_wind
1646      - add new parameters and constants: longwave emissivity for ocean, ice
1647        and snow, evaporation parameters over ice
1648      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
1649        either wind from stress or stress from wind
1650    o pkg/thSIce:
1651    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1652    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1653       and THSICE_CALC_THICKN
1654    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1655    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1656      to make debugging easier.
1657    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1658    o pkg/bulk_force:
1659      - clean-up comments and parameters ;
1660      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1661    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1662      generate new output for test-experiment: aim.5l_cs.thSI
1663    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1664      testreport accordingly
1665    
1666    checkpoint58e_post
1667    o SEAICE_CGRID adjoint done
1668    o R_STAR adjoint implemented.
1669      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1670      * need to sort out init. of h0facc, etc.
1671    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1672      to be able to use it in pure forward.
1673    
1674    checkpoint58d_post
1675    o upgrade simple test-experiment to tutorial example:
1676     step.1: duplicate the experiment and (step.2) will remove the old copy.
1677      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1678      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1679      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1680      tutorial_global_oce_biogeo    <- copy of dic_example
1681      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1682      tutorial_plume_on_slope       <- copy of plume_on_slope
1683      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1684      tutorial_global_oce_optim     <- empty for now (David ?)
1685      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1686     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1687    o correct a sign problem in cost_scat.F
1688    o obcs and ptracers: fix boundary conditions for advections schemes
1689      with larger stencil
1690    o thsice adjoint: start
1691    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1692      completeness
1693    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1694      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1695    o ptracers adjoint:
1696      * avoid extensive recomputatations
1697      * fix missing re-init. of gptr (missed by TAF)
1698    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1699      me to turn off the excessive output to STDOUT that this package produces
1700    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1701      and add those terms in Vector-Invariant formulation.
1702    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1703      if the control period (xx_hfluxperiod etc) is 0
1704    o in profiles pkg, clean routines and fix details
1705    o in ecco pkg, reading ssh data:
1706      fix problem in case the model does not start at iter0=0
1707    o fix mnc-pickup/restart for ptracers
1708    o new package prifiles:
1709      code to compute profile-based cost by Gael Forget
1710      (modifs in ecco, ctrl, autodiff)
1711    o Benign bug fix in initialization (spotted by M. Mazloff) of
1712      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1713    
1714    checkpoint58c_post
1715    o adjoint: finish NLFS adjoint and provide reference output in
1716      verification/global_ocean.90x40x15/results_ad_nlfs
1717    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1718      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1719      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1720      with SEAICE_CGRID defined.
1721    o move calendarDumps from "data" to "data.cal" and clean-up the code
1722      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1723    o add useEXF & useCAL flags (for now, set in hard-coded way)
1724    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1725      (were missing in NH mode, and wrong in quasihydrostatic mode).
1726      waiting for Chris updated version of calc_gw to add those CALLs.
1727    o fix bug in quasihydrostatic S/R ;
1728      add a test for this option: global_ocean.90x40x15.qshyd
1729    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1730      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1731    o add on/off flag useOffLine for package OFFLINE
1732    o seaice:
1733      - modify advection so that it works also on the C-grid
1734      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1735        problem in multi-tile runs with C-grid
1736      - add flags for clipping ice velocities and/or masking solver forcing
1737      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1738        C-grid solver
1739      - added a few comments to seaice_diffusion.F
1740      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1741        are now exclusive)
1742      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1743        required re-ordering the code a little:
1744       + make DAIRN global variable (defined in SEAICE)
1745       + move computation of the viscosities eta and zeta into a new separate
1746         routine (because I need to recompute them in seaice_ocean_stress.F)
1747    
1748    checkpoint58b_post
1749    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1750      update output.txt of exp. aim.5l_cs.thSI
1751    o various mnc cleanups and improvements:
1752      + shrink lookup tables by factor of ~4
1753      + better error reporting when running out of lookup space
1754      + able to handle longer path/file names (up to 500 chars)
1755    o adjoint:
1756      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1757      - TBD: "hidden" mom_vecinv recomp. in dynamics
1758    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1759     (allow to differentiate between forcing components using new integer flags:
1760      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1761     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1762    o ecco
1763      - enable trend removal from SSH anomaly obs.
1764    o adjoint
1765      - a fix for PmEpR when #undef EXACT_CONSERV
1766      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1767      - try to fix "hidden" recomp. in forward_step for NLFS
1768        (NLFS seems broken sometimes after I checked it in)
1769    o seaice:
1770     - add c-grid version of the dynamic solver:
1771       + three new routines that are the c-grid substitute lsr, dynsolver
1772         and ostres
1773       + put a few fields that were local to dynsolver into global common
1774         blocks, so that I can move the computation of stresses etc into
1775         seaice_lsr (saves coding but may break the adjoint).
1776     - replace more hardwired parameters by runtime parameters
1777     - add ice masks that mask the rhs of the implicit solvers where there
1778       is no ice (commented out in seaice_dynsolver, because i am not sure
1779       if this works properly), eventually this should replace the clipping
1780       of ice velocities in seaice_dynsolver to +/-40cm/s.
1781    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1782      include it only where its needed
1783    o move balancing of fluxes before the call of external_forcing_surf
1784    o seaice:
1785      - correct units of turning angles (now they are really in degrees)
1786      - move computation of GWATX/Y out of main routine into dynsolver
1787      - initialize GWATX/Y in seaice_init
1788    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1789      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1790    o seaice: add runtime flags for turning angles (default to zero)
1791    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1792      and trend from exf forcing and ctrl control adjustments
1793    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1794      (since checkpoint57x_post)
1795    o change the default rotation period to 86164.s = the Earth rotation
1796    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1797      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1798    o seaice advection: add code for choosing between the default (2nd order
1799      central differences) and multiDim advection schemes provided by
1800      pkg/generic_advdiff
1801    o seaice:
1802      - removed all references to SEAICE_GRID.h fields from
1803        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1804        (cubed-sphere configuration will change a little)
1805      - grid computations in seaice_init are obsolete now.
1806      - cleaned up code a little so that is easier to read (hopefully).
1807      - added new (better?) discretizations of default advection and diffusion
1808        (turn on with SEAICEuseFluxForm)
1809      - replace 1 in 3d global fields by kSurface in growth.F
1810      
1811    checkpoint58a_post
1812    o seaice:
1813      - bug fix in advect.F
1814    o shelfice:
1815      - separate shelfice load anomaly from pload (breaks with time
1816        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1817        Its default is 0., but it may be computed more cleverly from (unknown)
1818        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1819        done offline. A good approximation of the pressure load anomaly is
1820        necessary to avoid large initial adjustment processes underneath
1821        deep-reaching shelfice.
1822      - small fix in ISOMIP shelfice_thermodynamics
1823      - add more sophisticated thermodynamics of Hellmer (1989), this is
1824        now the default
1825      - give a few constants more intuitive names
1826    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1827      if bulk formulae are used in long integration (especially EmPmR). Turn
1828      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1829      if balancePrintMean, the imbalance that is substracted is printed to
1830      STDOUT.
1831    o fix bug (typo) in obcs_apply_eta.F
1832    o add a new package shelfice which enables us to model the circulation
1833      underneath shelf-ice with draughts of hundreds of meters.
1834     - works
1835     - to do: + include improved thermodynamics
1836              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1837                instead of new field kTopC
1838              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1839                instead of new field R_shelfIce and new code in ini_depth.F
1840                and ini_mask_etc.F?
1841              + adjust vertical mixing schemes?
1842    o seaice pkg:
1843     - add a cpp-flag to include a simple formula for a salinity dependent
1844       freezing point of sea water at the surface
1845     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1846       meridional stresses are now different (and hopefully correct)
1847    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1848       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1849       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1850    o pkg/diagnostics: add options and parameters for regional-statistics
1851       diagnostics ; define regions by reading a region-mask from a file
1852       (might add other options later)
1853    o pkg/bulk_force:
1854     - add option and parameters to use AIM surface-flux formulae.
1855     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1856       others forcing fields (defined in PARM05, parameter file "data") are loaded
1857       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1858     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1859     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1860     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1861       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1862     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1863    
1864    checkpoint58
1865    o add "--embed-source" option to genmake2 which, when the supporting
1866      tools can be compiled (as determined by genmake2) will turn on the
1867      embed_files package which then embeds the entire MITgcm source code
1868      (*.[fFhc] + Makefile) used for the build within the executable
1869      - requested by CNH but off by default
1870      - adds a paltry <9MB to the mitgcmuv executable in most cases
1871      - only writes the output when useEMBEDSRC in eedata is true
1872    o clean up 3-dim. relaxation codes:
1873      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1874      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1875      * Thanks to Tom Haine for testing!
1876    
1877    checkpoint57z_post
1878    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1879      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1880    o fix the pickup behavior for obcs in combination with ptracers
1881    o fix a bug in ptracers_external_fields_load
1882    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1883      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1884    o transfered surface NH pressure to eta field (if exactConserv).
1885    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1886         and update lab_sea output.txt file.
1887    o completing 3-dim. relaxation code: additional term
1888         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1889      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1890      * At compile time, in "EXF_OPTIONS.h" set
1891          #define  ALLOW_CLIMTEMP_RELAXATION
1892          #define  ALLOW_CLIMSALT_RELAXATION
1893      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1894          tauThetaClimRelax3Dim = 15552000.0,
1895          tauSaltClimRelax3Dim  = 15552000.0,
1896      * 3 cases:
1897          1) Use a constant-in-time 3-dim. field
1898          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1899          3) Real-time relax. to time-evolving prescribed field
1900    o Adding Laplacian-type smoothness constraint on
1901      initial and boundary (forcing) controls (ic, bc)
1902      * enable at compile-time via
1903        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1904      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1905      * Absolute scale somewhat unclear so far
1906      * no area weighting was included since no other cost term does so far
1907    
1908    checkpoint57y_post
1909    First step for a NLFS adjoint
1910    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1911    o new init. routines for calc_r_star, calc_surf_dr
1912    o still need to deal with ini_masks_etc
1913    o testreport seemed happy
1914    checkpoint57y_pre
1915    
1916    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1917    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1918    o add new offset feature to offline pkg (plus minor cleanup)
1919    o cfc fixes for final year of integration
1920    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1921      be in GCHEM_OPTIONS).
1922    
1923    checkpoint57x_post
1924    o fix testreport Pb in multiple test experiment.
1925    o cleanup our namelist syntax in verification:
1926      - make it more F95 standards compliant (some work still needed)
1927      - allows the vast majority of our tests to work with gfortran
1928    o Non-Hydrostatic:
1929     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1930     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1931    o Allow to apply AB on T,S rather than on AB(gT,gS):
1932     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1933     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1934       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1935     - need a "clever" read_pickup to restart from the other AB formulation
1936    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1937    o remove some unused variables (reduces number of compiler warnings)
1938    o adjoint
1939      * Disable useVariableViscosity for adjoint for time being
1940        (there are a number of extensive recomputations)
1941      * Initialize certain variables needed for adjoint
1942    
1943    checkpoint57w_post
1944    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1945                 fix the singleCpuIO RS version of MDSWRITEFIELD
1946       and add a WARNING if using globalFiles=T with multi-processors.
1947    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1948      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1949    o tracer advection scheme:
1950      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1951       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1952       was not very convenient).
1953      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1954       (further tests needed for the implicit DST & Flux-Limiter schemes).
1955    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1956      and sRef for convenience, handy, when you want to initialize
1957      ptracers in a large domain with a constant non-zero value. Also,
1958      untangle ptracers_init.F a little.
1959    
1960    checkpoint57v_post
1961    o change dome exp. to use variable viscosity in side-drag terms.
1962    o remove all the files from the cfc_offline test since they are now
1963      incorporated into tutorial_cfc_offline which has been producing
1964      identical results for a few days of testing
1965    o add new parameter: sideDragFactor to enable half-slip-side BC
1966      and change side-drag S/R to use viscosity from mom_calc_visc
1967      (can switch back by setting sideDragFactor=0.); affects results at
1968      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1969       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1970    o vorticity & strain are now computed without masking, to account for
1971      no-slip-side BC in variable viscosity calculation ; mask is applied
1972      anyway later on, before computing advection/coriolis terms.
1973    o modify exp4 to test new obcs support for reading from external files
1974      and for passive tracers
1975    o fix behavior of ptracers_monitor when monitor output is written to a
1976      netcdf-file; still not independent of monitor.F (writes in the same
1977      file).
1978    o change default value of tRef (put a uniform, meaningful value for ocean
1979      & atmos) and initialize sRef (was missing, as Martin mentioned).
1980    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1981      to be proportional to enstrophy dissipation length.  Thus,
1982       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1983      This is now consistent with Smagorinsky and with the manual.
1984    
1985    checkpoint57u_post
1986    o OBCS and PTRACERS: add open boundary support for passive tracers
1987      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1988        OB-values from file; this is not different from the way theta and salinity
1989        are treated
1990      - however, Orlanski-radiation conditions are not supported, and the model
1991        will stop if you use pTracers and Orlanski at the same time.
1992      - beefed up the rountine obcs_external_fields_load: now only those open
1993        boundary values are overwritten with values from files for which there
1994        are really files, otherwise the OB-fields remain untouched. This makes
1995        it possible to use different OBs at different ends of the domain (as
1996        with EXF)
1997    o reduce number of exch calls in shap_filt (s2).
1998    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1999      truncation level) 4/5 MLAdjust test results (11&12 digits match).
2000    
2001    checkpoint57t_post
2002    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
2003    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
2004      same truncation, independent of the face number: affects affects several
2005      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
2006    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
2007      note that biharmonic viscosity + no-slip was not tested in any experiment.
2008    o fix bug in non-linear free-surf side-drag ; generate new output for
2009      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
2010    o make mnc honor the writeBinaryPrec flag for most kinds of output
2011    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
2012    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
2013      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
2014    o add brackets in multi-terms sum to get same truncation, independent of
2015      the face number (manage to get exactly same value of gU,gV at the cs-edge)
2016      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
2017    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
2018      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
2019      a maximum grid-scale Reynolds number.  Also, changes all length calculations
2020      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
2021      Suggested values of viscosity parameters found in mom_calc_visc.
2022      Many new viscosity diagnostics available.
2023    
2024    checkpoint57s_post
2025    o Add clearing-house for viscosity calculations, mom_calc_visc and
2026      correct numerous bugs in LeithD and Smagorinsky discretizations.  
2027      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
2028      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
2029      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
2030      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
2031      The Strain-Tension form is now called with useStrainTensonVisc=.true.
2032      ViscAhStrain and viscAhTension are now retired.
2033    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
2034    o In response to JMC's bug report, genmake2 now ignores any soft-links
2035      that it finds in the *current* directory when searching for files.
2036      Soft-links found in any other source directories will still work as
2037      they did before.
2038    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
2039      a C routine to unlimit the stack size
2040    o mnc-ify pkg/aim snapshot vars
2041    o mnc-ify pkg/land as requested by Daniel
2042    o various changes to mnc including:
2043      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
2044      - output can now be grouped so that all files within a group
2045          change the ITER portion of their names in lock-step together
2046      - can now read ("global") PER-FACE (in addition to PER-TILE) files
2047          and works with both EXCH1 and EXCH2 (but needs more testing)
2048      - writing works for all verification test cases w/ g77 on Linux
2049    
2050    checkpoint57r_post
2051    o make MNC variable initialization happen earlier
2052    o add diagnostics for (almost) each term of the momentum Eq.
2053    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
2054    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
2055    o remove MINIMAL_TAVE_OUTPUT option ;
2056      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
2057    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
2058      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
2059    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
2060    o add time-dependent SST, SSS control
2061    o cost terms in ecco/ modularized (new cost_generic.F)
2062    o cost_averages routines are modularized (new cost_averagesgeneric.F)
2063    o new infrastructure for seaice model vs. obs misfits in seaice/
2064      * driver from the_main_loop.F is seaice_cost_driver.F
2065      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
2066      * gradient check in Exp. 6a of natl_box_adjoint/
2067    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
2068      (see README file)
2069    
2070    checkpoint57q_post
2071    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
2072    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
2073      - bug was reported by Jean-Michel and Ian Fenty
2074    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
2075      update exp. cpl_aim+ocn output.
2076    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
2077      Needed for high-res. runs with large global files
2078      to be able to limit tapelev size
2079    o Changed some tests for adjoint:
2080      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
2081      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
2082      * global_ocean.90x40x15/ back to default 3-level checkpointing
2083    o Modifications to enable scripted COMMON to MODULE conversion
2084      * verification/OpenAD/code/ has necessary scripts and description;
2085      * converts, compiles and runs successfully;
2086    
2087    checkpoint57p_post
2088    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
2089    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
2090      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
2091    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
2092    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
2093      (was already the case for dissipation with mom_vecinv,
2094       and also the case for grad.PhiHyd when staggered-timeStep)
2095      This will allow to put dissipation out-off the AB time-stepping.
2096     Unfortunately, affects truncation error. Update output of exp. that "fails"
2097      (cg2d matching number) and leave the others for later: front_relax(10),
2098      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
2099      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
2100    
2101    checkpoint57o_post
2102    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
2103      (2) its ready to be documented during the 20050801 DocFest
2104    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
2105      for ideal_2D_oce and lab_sea on linux_ia32_g77
2106    o set to #undef CTRL_SET_OLD_MAXCVARS_30
2107      in global1x1_tot/code_seaice_adj to access indices 32, 33
2108      (worth another tag)
2109    
2110    checkpoint57n_post
2111    o adding precip control xx_precip 32
2112    o adding swflux control xx_swflux 33
2113    o Replacing 10 forcing penalty cost routines by 1 generic.
2114    o Implementing partitioning in time-mean and variable adjustment
2115      for atmos. state.
2116    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
2117    o in natl_box_adjoint:
2118      * updated exp 1 to 10
2119        (but does not have time-mean vs. variable split results yet)
2120    o updated global1x1/*_seaice_adj/
2121      to incorporate latest changes
2122    o enable useSingleCpuIO for mdsio vector routines
2123      (applies in particular to tapelev I/O)
2124    o removed inefficient K-loop in all active_file*control*.F
2125    
2126    checkpoint57m_post
2127    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
2128      and advect_cs (use EXCH-2 and standard cs-32 grid files).
2129    o pkg/exch2: filling of face-corner halo regions is optional
2130      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
2131    
2132    checkpoint57l_post
2133     tag before updating tutorials (pre-release-2)
2134    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
2135       for output and interpolation of input fields onto model grid)
2136    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
2137       Affects results of exp. rotating_tank ; update output.txt.
2138    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
2139          and taking the square quantity and/or using a fraction-weight field.
2140    o fix aim_diagnostics_init.F mate numbers.
2141    o add mnc output capability to diagnostics/diagstat and update
2142      our cvsignore files for the ACSII output generated
2143    
2144    checkpoint57k_post
2145    o lab_sea now uses diagnostics package and provides a suite of
2146      new EXF diagnostics output.
2147    
2148    checkpoint57j_post
2149    o exf
2150      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
2151        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
2152        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
2153      * extended diagnostics output
2154        - now includes all EXF variables
2155        - hs, hl moved to common block
2156        - separate S/R for diagnostics, called after ctrl vector is added
2157        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
2158        - EXFqnet contains true Qnet (i.e. includes qsw)
2159      * updated verif. lab_sea, global_with_exf
2160      * Rearranging hflux (exf_mapfields -> exf_getforcing)
2161        to ensure that diagnostics sees a true EXFqnet
2162    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
2163    o diagnostics pkg: change pointers so that 1 diagnostic can be used
2164      several times with different frequencies.
2165    o mnc-ify the thsice package as requested by Daniel Enderton
2166      - the monitor--MNC output needs work
2167      - many attributes need to be added (most are currently blank)
2168    o mnc-ify theaim_v23 package as requested by Daniel Enderton
2169      - many attributes need to be added (most are currently blank)
2170    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
2171    o add Sadourny like discretization to the 4th.O vorticity advection scheme
2172    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
2173      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
2174         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
2175    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
2176     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
2177    
2178    checkpoint57i_post
2179    o Diagnostics package was changed: diagnostic allocation is now deactivated
2180      by setting an empty file name in the namelist (used to be by setting 0 frequency)
2181    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
2182      add 1rst Order upwind vertical Shear.
2183    o add a quick fix for A/B checkpointing in OFFLINE mode
2184    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
2185      end-run around the C/Fortran linking horror in eesup/src/timers.F
2186    o added pkg/runclock: allows user to terminate run based on wall clock
2187    o added non-hydrostatic scaling parameter: nh_am2
2188    o pkg/my82: futile attempt to make results compiler-independent by adding
2189      some "_d 0", etc. no effect.
2190    o for mnc output, fill the 'T' coordinate var with myTime and create a
2191      separate 'iter' variable for iteration count
2192    o pkg/diagnostics:
2193      add new capability: output of Global/Regional & per-level statistics ;
2194      tested against monitor output (including land & thSIce) on various exp.
2195    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
2196    
2197    checkpoint57h_done
2198      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
2199      data.diagnostics, data.gchem, data.ptracers) is done.
2200    
2201    o pkg/diagnostics: prepare for Global/Regional statistics.
2202      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
2203    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
2204      and rename it: DIFFERENT_MULTIPLE
2205    
2206    checkpoint57h_post
2207    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
2208    o pkg/diagnostics: change output frequency, now in seconds (instead
2209      of Nb of iterations). This requires to change data.diagnostics.
2210    checkpoint57h_pre
2211    
2212    o in mnc, let the user create the output dir if both mnc_outdir_date
2213      and mnc_outdir_num are false
2214    o add fflags() to pkg/diagnostics which allows one to specify, on a
2215      per-file basis, the file precision [default behavior is unchanged]
2216    o added diagnostics to pkg/kpp, including computation of mixed layer
2217      depth based on a temperature/density criterion
2218    o updated verification/natl_box to test the new pkg/kpp diagnostics
2219    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
2220    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
2221    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
2222      not mnc -- this mistake was found by JMC and is now corrected
2223    
2224    checkpoint57g_post
2225    o add Adams-Bashforth 3rd Order time stepping:
2226      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
2227      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
2228    checkpoint57g_pre
2229    
2230    o make lambda[Theta,Salt]ClimRelax spatially varying
2231      (default remains spatially uniform constant based on tau)
2232    o added new control variables
2233      * init. uVel, vVel, etanN
2234      * lambda[Theta,Salt]ClimRelax
2235    o separate masks used for ctrl_pack/unpack 'from write_grid' output
2236      (suggested by G. Forget)
2237    
2238    checkpoint57f_post
2239    o add parameter "baseTime" = model base time = time at iteration zero
2240      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
2241      account for baseTime shift
2242    o move Coriolis arrays from PARAMS.h to GRID.h
2243    checkpoint57f_pre
2244    
2245    o mnc-ifying the seaice package
2246    o introduced an alternative length scale calculation for use in the limiting
2247      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
2248    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
2249    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
2250      as well as grad(vort3).  Made it compatible with both approximate form
2251      for the cubed sphere and full form of these gradients.  Added flag
2252      useFullLeith to select between approximate and full form.  
2253    o add "d0" in getcon.F to reduce differences between compilers/platforms
2254      update output.txt of exp. fizhi-gridalt-hs
2255    o change port_rand funtion to allow to set the seed.
2256    o fix obscure MNC bug involving conversion between reals and integers
2257      - it caused no problems with certain (eg. gcc, ifc) compilers but the
2258        new version is now more standards-compliant
2259    o adjoint-related modifications
2260      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
2261      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
2262      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
2263    
2264    checkpoint57e_post
2265    o Adding eddy stress controls a la Ferreira et al.
2266    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
2267    
2268    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
2269      update output.txt of exp. fizhi-gridalt-hs
2270    o add more "Z" dimensions and associated coordinate vars to MNC
2271    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
2272    o parameter calendarDumps: when set, approximate months (30-31 days) and years
2273      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
2274      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
2275      months and years.  Requires pkg/cal.
2276    o diagnostics: add pickup functionality
2277      - off by default for backwards compatibility
2278      - current version only uses MDSIO -- MNC will be added
2279    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
2280    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
2281    
2282    checkpoint57d_post
2283    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
2284    o modify verification/ideal_2D_oce so that it tests the creation of mnc
2285      output from the diagnostics package
2286    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
2287    o make genmake2 more portable by using ".$FS" instead of ".f" for more
2288      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
2289    o add coordinate variables to the MNC output from the diagnostics package
2290    o change MNC-flags default value: true when useMNC=TRUE
2291    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
2292      the ability (off by default) to read the grid information using MNC
2293    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
2294    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
2295    o do snap-shot diagnostics at the middle of the time-interval (instead of
2296      at the end).
2297    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
2298      new test for AIM with thSIce + slab-ocean
2299    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
2300    o move state variable diagnostics to the beginning of the time step ;
2301      (note: still needs some work specially for snap-shot diagnostics)
2302      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
2303    
2304    checkpoint57c_post
2305    o Change testing option (-ieee) to get closer agreement between g77 & ifort
2306    o generate new output.txt files on faulks with g77 & the new -ieee option
2307    checkpoint57c_pre
2308    
2309    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
2310      update output.txt of exp. global_ocean.90x40x15
2311    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
2312      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
2313    o add saltFlux(+File) forcing capability with periodicExternalForcing
2314    o allow to use pkg diagnostics for GM-Redi & ThSIce output
2315    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
2316    o improvements for the MNC output from DIAGNOSTICS:
2317      - correct handling of the unlimitied dimension
2318      - all dims now have associated coordinate variables
2319      - variables located at U, V, and Corner ("Z") points are now written
2320        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
2321        *all* data points are output
2322    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
2323    o added pkg/seaice/seaice_monitor.F
2324    o mdsio_readfield.F can now read files visible only to master MPI process.
2325    o pkg/seaice: some test code for ice-modified ocean stress
2326    o exf_getffields interpolation defaults to bilinear for all scalar forcing
2327      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
2328      spurious negative numbers for precipitation and humidity.  Will cause
2329      some small numerical differences for integrations using pkg/exf/exf_interp.F.
2330    o pkg/ctrl/
2331      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
2332        May be enabled via doPackDiag
2333      *  introduce z-scaling of
2334         + gradient (doZscalePack) and
2335         + control (doZscaleUnpack)
2336    o pkg/mdsio/
2337      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
2338      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
2339    
2340    checkpoint57b_post
2341    o simplify options in diagnostics_fill arguments (remove weird combinations)
2342    o fix MNC coordinate variables so that they now contain per-face index
2343      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
2344      general, EXCH2 grids are only aligned to a "local" coordinate system
2345    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
2346    o Implement instantaneous output within pkg diagnostics:
2347      setting a negative frequency in data.diagnostics produces
2348     "snap-shot" output (as opposed to time-average if freq > 0)
2349    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
2350      NOTE: change ptracer diagnostics name: use 2 characters to work with
2351            more than 9 tracers. Add also diagnostics of advect & diffus flux.
2352    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
2353      becomes the coordinate variable for the 'T' dimension
2354    o add CF-style coordinate variables to MNC
2355      - just a first cut:  numbers are meaningless on the cubesphere and
2356        missing along the T axis but otherwise it works!
2357    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
2358    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
2359    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
2360      this is based directly on what the model compute, so that the content of
2361      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
2362    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
2363    o clean up build options files for SunOS, in particular
2364      - remove -traditional from xmakedepend
2365      - change -xarch=v9 to -xarch=native for f77
2366      - restore use of make (not gmake)
2367      - add CC=gcc if using g77
2368    o changes per discussion of AM, JMC, & EH3 today:
2369      - move redundant "grid" variables out of "state" -- in preparation of
2370        creating proper CF-style coordinate variables and in recognition
2371        that any/all grid variables can be easily copied (eg. w/NCO) from
2372        the grid files into any of the other NetCDF files
2373      - *always* output grid variables with MDSIO (this will eventually be
2374        changed)
2375      - output MNC grid file if useMNC is true
2376    o every instance of _END_MASTER() has been found and replaced with
2377      _END_MASTER( myThid ) in order to satisfy certain picky Sun
2378      preprocessors
2379    o re-arrange diagnostics pkg initialisation:
2380     - allow each package to extend the available diagnostics list
2381     - add some checking and fix small problems (multi-threaded, ...)
2382     - new S/R diagnostics_fill (replace fill_diagnostics):
2383       look through the short list of active diag. (instead of the long list)
2384       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
2385    
2386    checkpoint57a_post
2387    o this set of changes restores TAMC compatibility
2388      tested for global_ocean.90x40x15 adjoint on trough
2389      (what a pain)
2390    
2391    checkpoint57a_pre
2392    o some modifs in tools/build_options for sunos
2393    o call ctrl_pack for ctrl at end for optimcycle=0
2394    
2395    checkpoint57
2396    o add horizontal bi-harmonic viscosity for vertical velocity
2397      - new parameter viscA4W (defaults to viscA4)
2398      - affects only non-hydrostatic code
2399      - to be done: no-slip lateral boundary conditions
2400    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
2401    o implement Implicit Vertical advection for pTracers
2402  o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)  o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
2403    (implemented also for implicit vertical diffusion & advection)    (implemented also for implicit vertical diffusion & advection)
2404  o OBCS: extend application of tracer open boundary conditions  o OBCS: extend application of tracer open boundary conditions
# Line 11  o add call monitor to TAF set of require Line 2407  o add call monitor to TAF set of require
2407    and include in natl_box_adjoint    and include in natl_box_adjoint
2408  o untangle a few ifdefs related to cost, ctrl, autodiff  o untangle a few ifdefs related to cost, ctrl, autodiff
2409    untangel a few ALLOW_ECCO_OPTIMIZATION    untangel a few ALLOW_ECCO_OPTIMIZATION
2410    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
2411      (theta2, salt2 in ecco_cost_weights)
2412    
2413  checkpoint56c_post  checkpoint56c_post
2414  o OBCS as control variables  o OBCS as control variables
# Line 306  o add two new packages Line 2704  o add two new packages
2704    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2705    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2706      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2707      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2708  o add offline package  o add offline package
2709  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2710    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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