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revision 1.37 by jmc, Tue Mar 13 01:15:09 2001 UTC revision 1.226 by jmc, Tue Dec 16 15:16:39 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint52d_post
7    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
8    o changes to permit hi-res, cubed-sphere, configuration
9      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
10      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
11      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
12        of surface winds for the cube
13      (A verification experiment, based on global_ocean.cs32x15, but with
14       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
15       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
16       complete with example surface forcing files and matlab scripts to look
17       at the output and compare it with that of global_ocean.cs32x15.)
18    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
19       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
20       to conform to the common rule.
21    o check-in the first version of the coupler + interfaces for multi-components
22       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
23       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
24       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
25       - ocean and atmos. share the same horizontal grid (no interpolation).
26       - exchanges between component and coupler is done in forward_step
27    o new verification experiment, cpl_aim+ocn:
28       coupled ocean - AIM atmosphere on cs32 grid.
29    
30    checkpoint52d_pre
31    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
32    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
33    
34    checkpoint52c_post
35    o Fixing OPTIONS files for use of exf:
36      - ALLOW_ECCO not needed
37      - ECCO_CPPOPTIONS.h should not be included from
38        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
39        as has been the case in the past
40      - All cal/exf related options are currently set in
41        single header file. Should remain so until we
42        agree on a consistent new policy.
43    o Removed all CPP options for cal package.
44      cal has no more CPP options.
45    o modified STOREs in GAD_ADVECTION
46    o corrected key comp. for passkey
47    
48    checkpoint52b_post
49    o new version: "thsice" of thermodynamic sea-ice pkg:
50     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
51     - modify fluxes but do not change theta directly;
52     - light cleaning of bulk_force pkg (still needed with thsice).
53     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
54       + output_thsice.txt to test thsice & bulk_force pkgs.
55    o put back grid & coriolis monitor output.
56    checkpoint52b_pre
57    
58    o call "do_the_model_io" at the beginning (=> dump initial state)
59    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
60    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
61      (need info on NUMBER_OF_PTRACERS)
62    o missing PTRACERS headers in some routines
63    o default tamc.h in pkg/autodiff supposed to crash
64      to ensure proper customization
65    
66    checkpoint52a_post
67    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
68      - moved surfaceTendencyTice from pkg/seaice to main code
69      - subroutine FREEZE_SURFACE now limits only surface temperature
70        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
71        => new output.txt for global_ocean.cs32x15 & global_with_exf
72      - keep the old version of FREEZE for backward compatibility;
73        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
74      - corresponding modifs for TAF directives
75    o added surface flux output variables to TIMEAVE_STATVARS
76    o time-averaged output for pkg/ptracers
77    o fix problem with ECCO-related divided adjoint
78      snapshot file was missing some ad-variables,
79      but no warning issued by TAF
80    
81    checkpoint52a_pre
82    o some bug fixes for #undef REAL4_IS_SLOW
83    
84    checkpoint52 = ecco_c52_e35
85    o after testing adjoints of checkpoint51u_post
86    
87    checkpoint51u_post
88    o this is the post-merge tag of the ecco-branch
89      (needs another clean checkout and re-testing)
90    o various natl_box_adjoint configs and results
91      but no input fields
92    o obcs adjoint not yet merged!
93    o adding ECCO global 1x1 and 2x2 degree configs
94    o updated/extended some store directives for seaice
95    o pkg/ecco now containes ecco-specific part of cost function
96    o top level routines the_main_loop, forward_step
97      supersede those in model/src/
98      previous input data.cost now in data.ecco
99      (new namelist ecco_cost_nml)
100    o in ctrl/ cleaned some cross-dependencies and updated CPP options
101    
102    checkpoint51t_post
103    o this is the pre-merge tag of the ecco-branch
104    
105    checkpoint51s_post
106    o cleanup: removed various obsolete #define-s
107    o pkg/grdchk
108      - renamed 'ph-grd 3' to 'grad-res'
109      - merged from ecco-branch
110        (remaining bug fixes for obcs gradient checks)
111      - additional high-precision output for testreport
112        (grep for 'precision_grdchk_result')
113    
114    checkpoint51r_post
115    o cleaned up or removed CPP_OPTIONS.h files
116    o updated results for some of the tests to reflect the new
117      optfiles (-ieee: -O0 instead of -O3)
118    
119    checkpoint51q_post
120    o cd_code:
121      - moved cd_scheme.F -> cd_code_scheme.F
122      - separate read_checkpoint from cd_code_ini_vars.F
123      - separated cd_code part from write_checkpoint
124      - updated AD_SOURCE, generated .flow
125      - added CD_CODE_VARS.h to the_main_loop
126      - Moving cd_code specific store dir.s to pkg/cd_code
127    o ctrl package totally restructured
128      - pack/unpack now optional and decoupled from
129        xx_/adxx_ I/O
130      - ctrl_pack/unpack cleaned
131        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
132      - confined inclusion of AD_CONFIG.h to where necessary.
133    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
134    
135    checkpoint51p_post
136    o create initial cd_code package
137      - WARNING: the initialization of fields within packages
138        is broken because INI_FIELDS (where READ_CHECKPOINT is
139        called) is called *before* PACKAGES_INIT_VARIABLES.
140        This seems to be backwards since
141        1) its important to initially zero the entire field including
142           the "halo" region
143        2) zeroing needs to be done *before* reading pickup info
144           and the pickup call might or might not happen in any
145           particular run
146      - this needs an overhaul for R2
147    o cleanup verification/*/code/GMREDI_OPTIONS.h
148    o cleanup testreport
149    
150    checkpoint51o_post
151    o bringing AD-related verif's up to date with genmake2
152      - carbon/
153      - global_ocean.90x40x15/
154      - hs.94.1x64x5/
155      - (front_relax/ )
156    o (more) consistent directory structure for AD-related verif.'s
157    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
158    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
159    o bug fix in find_alpha.F for MDJWF:
160      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
161        change rho -> rho-rhoConst
162      - replace call find_rho to find_rhonum
163    o initialisation of rFlx extended to full array (required by TAF)
164      and shifted to thermodynamics
165    o removed PTRACERS.h in ptracers routine
166    o added surfacetendencyPtr to S/R parameter list pracers_forcing
167    o Correcting initialisations for fVerU, fVerV.
168    o helping TAF to recognize dependency on kUp for
169      fVerU, fVerV
170    o Replacing delZ by delR in pkg/ctrl/
171    checkpoint51o_pre
172    
173    o undid all of cp51 pending some cleanups and discussion
174    o added the [#include "AD_CONFIG.h"] statement to all files that need
175       it for adjoint/tl #defines
176     o re-worked the build logic in genmake2 to support AD_CONFIG.h
177     o removed tools/genmake since it no longer works
178    
179    checkpoint51n_post
180    o modifications to make FREEZE flux visible to pkg/kpp
181      - moved surfaceTendencyTice from pkg/seaice to main code
182      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
183      - subroutine FREEZE now limits only surface temperature
184        (this means new output.txt for global_ocean.90x40x15,
185         global_ocean.cs32x15, and global_with_exf)
186    o added surface flux output variables to TIMEAVE_STATVARS
187    
188    checkpoint51n_pre
189    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
190    o added [#include "AD_CONFIG.h"] to all files that use the following
191      defines:
192      - ALLOW_ADJOINT_RUN
193      - ALLOW_TANGENTLINEAR_RUN
194      - ALLOW_ECCO_OPTIMIZATION
195    
196    checkpoint51m_post
197    o incorporating changes to get TAMC/TAF working in genmake2
198      - added new TAMC/TAF targets to the Makefile
199      - various cleanups related to package handling
200      - these changes should have no impact on the forward model
201    
202    checkpoint51l_post
203    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
204     - faster algorithm for cal_addtime.F
205     - higher precision arithmetic, where needed
206     - pkg/exf *startdate variables changed from calendar date to
207       model integration time
208    
209    checkpoint51l_pre
210    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
211    o enable to apply restoring on S & T only in a latitude band.
212    o update output (external_forcing_surf modif. change truncation errors)
213       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
214    
215    checkpoint51k_post
216    o change default to: useNHMTerms=.FALSE.
217     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
218       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
219     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
220        exp1, ideal_2D_oce
221     - change data file of oceanic exp (leave the results unchanged for now)
222       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
223    o set gravitySign automatically according to the vertical coordinate used
224      (and change sign: back to "logical" value: +1 when R increases downward)
225    o added an include barrier to the default CPP_OPTIONS.h and
226      removed the #include "PACKAGES_CONFIG.h" from it
227    o fix a bug in mom_fluxform (from chk51j_post)
228    
229    checkpoint51j_post
230    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
231    o adjusted some flow directives (dynamics, thermodynamics)
232    o added cubed-sphere case to test cost function
233    o heckpoint_lev?_directives.h now include
234      pkg-specific directives, whenever those are enabled.
235    o Moving pkg-specific flow directives to corresponding pkg
236      Moving pkg-specific differentiation list to corresponding pkg
237      Moving pkg-specific checkpoint-lev storing to corresponding pkg
238      ---> conventions are
239           - pkg_ad.flow
240           - pkg_ad_diff.list
241           - pkg_ad_check_lev?_dir.h
242    
243    checkpoint51i_post
244    o merge of the branch-genmake2
245      - knowingly breaks the older genmake
246      - automatic generation of all ALLOW_${PKG_NAME} defines
247      - new testreport supersedes older testscript
248    o large number of package inclusion and header cleanups
249    checkpoint51i_pre
250    
251    o new output for adjoin of global ocean vector invariant
252    o fix for checkpoint of thermodynamic seaice and bulk_force
253    o Steph gchem various cleanups
254    
255    checkpoint 51h_pre
256    o fixed some single quotes
257    o modify gchem pkg to be more versatile
258    o modifications to clean up dic pkg
259    o add pkg/cfc
260    
261    checkpoint51g_post
262    o provide links for ARPACK and ADM*TLM
263    o start removing verification/vero/
264    o update AD-related stuff
265      (in particular some IF-statements in model/src/ routines)
266    o adding to verification/global_ocean.90x40x15/ adjoint of
267      vector invariant setup
268    
269    checkpoint51f_post
270    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
271    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
272      of tracer Green's fucntions for ocean inversion project.
273    
274    checkpoint51f_pre
275    o Added on-the-fly spatial interpolation capability
276        "USE_EXF_INTERPOLATION" to pkg/exf.
277      - This is a temporary Cartesian-grid hack until
278        the super-duper ESMF coupler becomes available.
279      - See verification/global_with_exf/README for usage example.
280      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
281        flags and modified pkg/seaice accordingly.
282    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
283        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
284        non-local transport term.
285    
286    checkpoint51e_post
287    o pkg/mom_vecinv:
288      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
289      - add time-ave diagnostic of vorticity advection.
290    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
291    o atmospheric geopotential: - include water vapor effect;
292                                - use p^kappa in p* scaling.
293    o land pkg: read initial state from files.
294    o AIM : add stratospheric drag in the upper level
295    
296    checkpoint51d_post
297    o change function ILNBLNK (=> last non-blank char.) to return zero
298      (instead of the string length) when the string. char is empty
299    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
300    o modif's to restore TAMC compatibility
301      - avoid "_d" constructs in PARAMETER declarations
302      - avoid interrupting lines by comment lines
303    o Use cluster local disks for purely local I/O
304      vs. globally visible disks needed for ctrl stuff
305      (merged from ecco-branch)
306      - new active_file_loc... and mdsio_..._loc routines
307      - affected packages: autodiff, ctrl, grdchk, mdsio
308    
309    checkpoint51c_post
310    o introducing integer flag debugLevel
311      - debLevZero: suppress all output
312      - debLevA: standard
313      - debLevB: equivalent to current debugMode=.TRUE.
314    o introducing pathname variable mdsioLocalDir for mdsio
315      that can be specified at runtime
316      (relevant for cluster I/O to local disk)
317    `
318    >>>checkpoint51b_post
319    adjoint of ptracers
320    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
321    o extended state in checkpoint_lev?, etc.
322    o alternative ctrl/cost with tr1 or ptracer
323    o new comlev1_bibj_ptracers
324    o new ptracers.flow
325    o made ptracers_forcing same as external_forcing_s
326    o added verification for adjoint with ptracers
327      - adm. grdchk fail so far
328      - tlm. grdchk OK
329      - checked tapelev/comlev recomputations: OK
330    <<<checkpoint51b_pre
331    
332    checkpoint51a_post
333    o added code for biogeochemistry package
334      - new pkgs: dic, gchem
335      - new subroutine in ptracers
336    o modify code for biogeo packages
337      - in model/src and pkg/ptracers
338    
339    checkpoint51
340    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
341      - autodiff, ctrl, exf, grdchk, seaice
342      kept separate packages
343      - cost, ecco, obcs
344    o updating verification/internal_wave, verification/lab_sea
345      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
346    
347    checkpoint50i_post
348    o Preparing next differentiable checkpoint and sync
349      of MAIN vs. ecco-branch
350      - 1st step: this one is differentiable
351      - 2nd step: next(! not this) checkpoint will have updated packages
352                  from ecco-branch)
353    
354    checkpoint50h_post
355    o new package "land": provide surface BC for AIM.
356    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
357    o AIM: use true log-P extrapolation for near surface temp (= as in
358        F.Molteni paper) ; update aim.5l_cs output.
359    o New variable in PARM03 for more flexible pickups
360    o somewhat cleaned package initialisation sequence for
361      ctrl/ cost/ ecco/ in packages_... routines
362    
363    checkpoint50g_post
364    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
365      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
366      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
367        made the default because of faster convergence than ADI
368    
369    checkpoint50f_post
370    o exf totally restructured
371      - replaced all exf_set_ routines by one generic exf_set_gen.F
372        and made sure it's still differentiable
373      - split exf_getffields.F into new exf_bulkformulae.F
374      - exf_inscal_/exf_outscal_ suffixes consistent with field names
375      - updated adjoint/makefile and relevant verif. accordingly
376    
377    checkpoint50f_pre
378     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
379          + change Evap over land. (update aim.5l_cs output)
380     o added missing .cvsignores and made uniform across expts
381     o changed configuration of tidal_basin_2d expt
382     o added pkg/debug functions for tracing code in fatal crashes
383     o tidied pkg/monitor to use MONITOR_OPTIONS.h
384     o new fn in pkg/monitor to stop model if solution grows too big
385     o removed lots of single quotes from comments
386    
387    checkpoint50e_post
388    o make KPP work with PTRACERS
389     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
390       nearly a copy of kpp_transport_s
391     - there is no analogue to SurfaceTendencyS, so I have to use
392       gPtr(of the surface layer) instead
393    o add a new platform SunFire+mpi (SunFire 15000) to genmake
394    checkpoint50e_pre
395    
396    checkpoint50d_post
397    o change kpp output from multiple-record state files to single-record state
398      files analogous to write_state.F
399    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
400      analogous to the cg2d-related output.
401    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
402      so that writing to internal file fn (with length 512) fails.
403    checkpoint50d_pre
404    
405    checkpoint50c_post
406    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
407    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
408    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
409    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
410    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
411    
412    checkpoint50c_pre
413    Merging from release1_p13:
414    o bug fix for pkg/seaice dynamic solver
415    o Added SEAICE_initialHEFF to pkg/seaice
416    
417    checkpoint50b_post
418    o store u*,v* in gU,V instead of in guNm1,gvNm1
419    o in order to put the momForcing out of the Adams-Bashforth:
420      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
421      to timestep.F
422    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
423    o re-generate output for highly sensitive test-exp:
424       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
425    
426    checkpoint50b_pre
427    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
428    o corrected CPP option mismatch in exf_Bulk... functions for case
429      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
430    
431    checkpoint50a_post
432    o Bug fix for merging between c50 and KPP.
433      ikey was passed from thermodynamics to kpp_calc via
434      common block rather than being recomputed in kpp_calc,
435      in contradiction with new key itdkey.
436      New key ikppkey created, and tamc.h headers updated.
437    
438    checkpoint50
439    - 2nd step of merge with ecco-branch:
440      merge changes in ecco-branch back into main trunk
441    - bug fix in find_alpha
442    - more storing in gmredi_calc_tensor.F, kpp_routines.F
443    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
444    - merged some sliced AD support routines
445    
446    checkpoint49
447    merged from ecco-branch:
448    o exf:
449      - Enable initialisation of forcing fields to constant
450        (runtime) values.
451      - in exf_getffields.F
452        Reduce i-/j-loop to interior domain, discarding overlaps.
453        That also fixes wrong TAF-key computations for key_1, key_2
454        with bulf formulae.
455      - exf_init.F modify #ifdef for exf_init_evap
456      - exf_getffieldrec.F, ctrl_getrec.F
457        The following INT-usages are not safe:
458          fldsecs  = int(fldsecs/fldperiod)*fldperiod
459          fldcount = int(fldsecs/fldperiod) + 1
460        and were modified.
461    o autodiff: checkpoint_lev...
462      - updated storing for bulk formulae (some arrays were missing)
463      - added state for seaice package
464      - synchronized with main branch
465    o DIVA:
466      Modif.s in
467      - the_main_loop.F
468      - the_model_main.F
469      and added cost_final_restore.F cost_final_store.F
470      o With these changes, it is possible to fully separate
471        the first forward run to compute the cost function (mdthe_main_loop)
472        and adjoint runs over individual DIVA intervals (adthe_main_loop)
473        into separate model executions.
474        This enables better tuning of DIVA to given queue sizes.
475      o Loss of cost function value in consecutive DIVA runs is
476        fixed by storing to 'costfinal' file.
477      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
478        beginning/end of adjoint integration is accounted for.
479      The current changes apply to TAF-1.4.26.
480      TAF has one remaining bug, requiring one manual change
481      (see MITgcm manual).
482    o cal: synchronized between MAIN and ecco-branch
483    
484    checkpoint48i_post
485    o Changes to restore differentiability of code w.r.t. previous tag
486      (mostly adding new routines to make list and replacing
487      pressure by totPhiHyd).
488    o Updated and merged grdchk package
489      - has both ADM and TLM checks
490      - works for single- and multi-proc.
491      - output cleaned
492      - worked successfully for parallel DIVA
493    o genmake:
494      - Adding -platform=SP4
495      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
496    o Modif. for DIVA:
497      ctrl_unpack should not be called in intermediate DIVA interval.
498      (similar thing would apply for active files such as
499      tbar, sbar, psbar, which should not be reinitialised;
500      only relevant for ecco-branch)
501    
502    checkpoint48h_post
503    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
504    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
505    o Added SEAICE_initialHEFF to pkg/seaice
506    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
507    
508    checkpoint48g_post
509    --- EOS:
510    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
511      store total Potential in totPhyHyd for diagnostics & EOS.
512    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
513    --- Pressure/geopotential gradient:
514    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
515    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
516      ( changes results of global_ocean_pressure )
517    o NLFS + z-coord.: add eta*Rho' contribution.
518    o accurate phiHyd when using interface-W at the middle between 2 centers
519     ( changes results of ideal_2D_oce )
520    o includes r* 2nd term in potential gradient.
521    
522    checkpoint48f_post
523    Merging from release1_p12:
524    o Modifications for using pkg/exf with pkg/seaice
525      - improved description of the various forcing configurations
526      - added basic radiation bulk formulae to pkg/exf
527      - units/sign fix for evap computation in exf_getffields.F
528      - updated verification/global_with_exf/results/output.txt
529    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
530      (SBO) core products, including oceanic mass, center-of-mass,
531      angular, and bottom pressure (see pkg/sbo/README.sbo).
532    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
533      to avoid negative values in shallow regions.
534      - updated verification/natl_box/results/output.txt
535      - updated verification/lab_sea/results/output.txt
536    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
537    o Added useSingleCpuIO option (see PARAMS.h).
538    o Updated useSingleCpuIO option in mdsio_writefield.F to
539      work with multi-field files, e.g., for single-file pickup.
540    o pkg/seaice:
541      - bug fix in growth.F: QNET for no shortwave case
542      - added HeffFile for specifying initial sea-ice thickness
543      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
544    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
545      kpp_transport_t.F, forward_step.F, and the_main_loop.F
546    o pkg/seaice:
547      - adjoint-friendly modifications
548      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
549    
550    checkpoint48e_post
551    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
552    o dynamics: change definition of computational domain & adapt mom_fluxform
553      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
554    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
555        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
556        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
557        global_ocean.90x40x15 global_with_exf global_ocean_pressure
558        inverted_barometer solid-body.cs-32x32x1
559      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
560    
561    checkpoint48d_post
562    o in preparation for r*:
563     a) use pre-computed gradient of hydrostatic potential:
564        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
565     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
566        => affects results of glob_oce_pressure (different truncation error)  
567      update output.txt of ideal_2D_oce & global_ocean_pressure
568    
569    checkpoint48d_pre
570    o in preparation for r*:
571      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
572      pass the 2 comp. of the grad. as arguments to momentum S/R.
573      but for the moment, only used if it does not change the results.
574    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
575    
576    checkpoint48c_post
577    Modifications in treatment of initial flux forcing controls
578    to avoid extra storing of flux fields.
579    
580    checkpoint48c_pre
581    o Added tidal_basin_2d experiment (currently 1D!)
582    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
583    
584    checkpoint48b_post
585    o r* coordinate added in #ifdef NONLIN_FRSURF block.
586     (modification to pressure gradient not yet implemented)
587    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
588      (for U & V) that are used for vertical advection of momentum.
589    
590    checkpoint48a_post
591    o In preparation for r*, use temp. array to compute vertical transport
592       in flux-form momentum pkg. => change results of few test-exp.
593      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
594                        lab_sea, natl_box & plume_on_slope
595    
596    checkpoint48
597    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
598    
599    checkpoint47j_post
600    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
601    o moved adexch from forward_step to addummy_in_stepping
602    o added exch in ctrl_map_...
603    o aveFreq.=0. at end of cost_final to avoid overwrite in
604      reverse checkpointing loop
605    o Yet more changes in gmredi:
606      * adgmredi_calc_tensor
607        avoiding all recomputation of gmredi_slope_limit
608      * adgmredi_x/y/rtransport
609        added flag for excessive storing to avoid recomp. of
610        u/v/rtans, dTdx/y/z
611        -> this is not really necessary and very memory-consuming
612      * adgmredi_slope_psi:
613        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
614      * gmredi_slope_limit
615        re-activated full calculation of taperfct for case 'ac02'
616    o updating verification/ adjoints of carbon, global_ocean.90x40x15
617    
618    checkpoint47i_post
619    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
620    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
621      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
622    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
623    o gmredi: fix few bugs.
624    
625    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
626    This will be a good checkpoint to plug into the ecco-branch.
627    o few modif.'s to get latest version adjointed
628      (mainly kick out code in ini_linear_phisurf)
629    o modif's to run adjoint with exactConserv
630    o case GM_BOLUS_ADVEC should be cleaned
631      S/R gmredi_slope_psi should be cleaned
632    o verification/carbon now has exactConserv=.TRUE.
633    
634    checkpoint47g_post
635    o time-average AIM output: becomes independent from statvars time-average
636      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
637    o After TAF bug fix:
638      Tested adjoint of gmredi package.
639      Tests were done with checkpoint47 rather than with latest
640      checkpoint47f_post since the latter is broken for the adjoint
641      verification/carbon/ contains both ADM and TLM gradient checks.
642    Here they are, before they get changed/lost/stolen.
643    Mostly modif.'s to fix numerical sensitivities.
644    Gradient checks OK for
645    - GM_taper_scheme:
646      * clipping
647      * ac02
648      * linear
649      * glw91
650      * dm95
651      * ldd97
652    - GMREDI_OPTIONS:
653      * GM_VISBECK_VARIABLE_K
654      * GM_NON_UNITY_DIAGONAL
655      * GM_EXTRA_DIAGONAL
656      * GM_BOLUS_ADVEC
657    in conjunction with data.gmredi parameters to be checked in
658    in a few minutes under verification/carbon/code/
659    
660    checkpoint47f_post
661    Merging from release1_p10:
662    o modifications for using pkg/exf with pkg/seaice
663      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
664        and SEAICE_EXTERNAL_FLUXES
665      - pkg/exf CPP options EXF_READ_EVAP and
666        EXF_NO_BULK_COMPUTATIONS
667      - usage examples are Experiments 8 and 9 in
668        verification/lab_sea/README
669      - verification/lab_sea default experiment now uses
670        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
671    
672    checkpoint47e_post
673    o created a tag prior to creating a branch
674    
675    checkpoint47d_post
676    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
677      at the bottom boundary had an erroneous half slip boundary condition
678    o added bottom drag and no slip boundary condition capabilities to
679      oceanic pressure coordinates code
680    o added new verification experiment global_ocean_pressure, this experiment is
681      also described in the tutorial section of the manual
682    checkpoint47d_pre
683    
684    checkpoint47c_post
685    o Added a verification experiment for a global cubed-sphere ocean run
686      -  verification/global_ocean.cubed32x32x30
687      -  uses pkg/therm_seaice and pkg/bulk_forcing
688    
689    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
690    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
691      when using P-coordinate; only implemented for atmospheric config.
692    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
693      NOTES: requires option NONLIN_FRSURF to be "#define".
694    o update advect_xz/results/output.txt (left from checkpoint44g_post)
695    
696    checkpoint47b_post
697    Merging from release1_p9:
698    o pkg/seaice
699      - removed GOTO's and added taf directives
700      - double precision constants to reduce the g77 (Linux)
701        to F77 (SGI) differences reported in release1_p8
702    o tools/genmake
703      - added SGI options
704    o verification/testscript
705      - updated to that of checkpoint47a_post
706    o verification/global_ocean.90x40x15/input/eedata
707      - modified for SGI f77 compatibility
708    o verification/lab_sea
709      - added description of sea-ice model
710      - added missing matlab routines
711      - added test of thermodynamics parallelization
712    
713    checkpoint47a_post
714    o new pkg: aim_v23
715     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
716       for now, keep the same surface forcing as before.
717     - Part-Cell implemented into AIM; check that Heat & Water are conserved
718     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
719     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
720    o add diagnostic of surface correction term in monitor output
721    
722    o bulk_force and therm_seaice
723    - Two packages:  bulk_force (Bulk forcing)
724      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
725    - Earlier integration from Stephaine Dutkiewicz
726      and Patrick Heimbach.
727    - Two ifdef statements for compile time,
728       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
729    
730    checkpoint47
731    differentiable version of checkpoint46n_post
732    o bug fix in quasihydrostaticterms
733    o * "clean" adjoint code (in terms of extensive recomputations)
734        can now be obtained for all GMREDI options (i.e. for
735        - GM_VISBECK_VARIABLE_K
736        - GM_NON_UNITY_DIAGONAL
737        - GM_EXTRA_DIAGONAL
738        - GM_BOLUS_ADVEC )
739      * However, wrong gradient check problem remains unsolved.
740      * New CPP options have been introduced for different
741        tapering schemes
742    o external_fields_load now part of differentiation list
743    o pressure needs multiple storing;
744      would be nice to have store_pressure at beginning or
745      end of forward_step, e.g. by having phiHyd global (5-dim.)
746      (NB: pressure is needed for certain cases in find_rho,
747      which is also invoked through convective_adjustment).
748    o recomputations in find_rho for cases
749     'JMD95'/'UNESCO' or 'MDJWF' are OK.
750    o #define ATMOSPHERIC_LOADING should be differentiable
751    o ini_forcing shifted to begining of initialise_varia
752    o Incorporating QNVS line search routines into MITgcm
753      (this is separate code, and therefore not under pkg)
754      lsopt/, optim/
755    o Updated verification/carbon/
756      - #define GM_VISBECK_VARIABLE_K
757      - GM_taper_scheme    = 'ldd97'    
758    
759    checkpoint46n_post
760    Merging from release1_p8:
761    o verification/natl_box:
762      updating new external_fields_load routine
763    o New package: pkg/seaice
764      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
765      The sea-ice code is based on Hibler (1979-1980).
766      Two sea-ice dynamic solvers, ADI and LSR, are included.
767      In addition to computing prognostic sea-ice variables and diagnosing
768      the forcing/external data fields that drive the ocean model,
769      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
770      The implied surface heat flux is then stored in variable
771      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
772      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
773      non-local transport term.  Because this call precedes model
774      thermodynamics, temperature under sea-ice may not be "exactly" at
775      the freezing point by the time theta is dumped or time-averaged.
776      N.B.: fairly large differences in accuracy occur across
777            different platforms/compilers; comparison between
778            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
779            generated output gives:
780       T           S           U           V
781      C D M    c        m  s        m  s        m  s        m  s
782      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
783      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
784      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
785    
786      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
787    o GAD:
788      - generated new common blocks to account for call of
789        same gad routines with differing traceridentities
790        (needed to modify tracerIdentity indices in GAD.h)
791      - generated separate common blocks for case useCubedSphereExchange
792        (Department of Futurology)
793      - parameter lists to gmredi_?transport: added tracerIdentity
794      - added new key indices to tamc.h
795    o external_fields_load:
796      - added this routine to TAF list
797      - needed to make some common blocks global and additional storing
798        along the same lines as exf package (checkpoint_lev?_directives.h)
799    o exf:
800      updated external forcing package
801      - bug fixes carried over from ecco-branch
802        (missing OBCS_OPTIONS.h in two routines)
803      - enable easy to use "no forcing".
804      - added exf I/O for atmospheric loading
805      - added exf I/O for runoff data
806      - transfered scaling between exf <-> MITgcm to exf namelist
807    o Adding new verification experiment global_with_exf.
808      This verification experiment is almost identical to the
809      global_ocean.90x40x15 experiment, except that it uses
810      the exf (and cal) package instead of the
811      external_fields_load routine (cf README file).
812    
813    checkpoint46m_post
814    o modified testscript to return -- when there are no lines of "%MON" output
815    o added new flag "quasiHydrostatic" for QH mode
816      and new routine quasihydrostaticterms()
817    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
818      New routine: mom_u_coriolis_nh()
819    o fixed sign of non-hydrostatic metric terms in u and v equations.
820      Depend on correct sign of gravitySign.
821    o added work.pc* to .cvsignore in aim directories using ifc
822    o introduced flag for controllin non-hydrostatic metric terms
823    o removed gravitySign from PARM04
824    o switched to g77/ifc from pgf77 in aim experiments
825    
826    checkpoint46l_post
827    o made convective adjustment work with pressure coordinates:
828     - changed the direction of k-loop in convective_adjustment.F for the
829       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
830     - adjusted the reference pressure k-index in convective_adjustment.F
831     - adjusted the convection condition in convect.F (in analogy to
832       calc_ivdc.F)
833     - convective_adjustment no longer computes anything on the halos
834     - removed the warnings about negative salinity from find_rho.F and
835       find_alpha.F; instead the new routine look_for_neg_salinity, called
836       at the beginning of find_rho, find_alpha, and find_beta, does a
837       check of the entire slice, if CPP-option
838       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
839    checkpoint46l_pre
840    
841    checkpoint46k_post
842    o fixed the verification/global_ocean.90x40x15 experiment:
843     - new bathymetry (the world according to A., JMC, and M.)
844     - new initial fields and forcing fields (*.bin files)
845     - new POLY3.COEFFS (for the next release one should switch to a full
846       equation of state: JMD95P or MDJWF)
847     - fixed several errors and redundancies in the data file
848     - experiment uses looped cells
849     - added matlab directory with diagnostic scripts for plotting of output
850    
851    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
852     - read AIM physics parameters from a file (data.aimphys)
853     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
854    
855    checkpoint46j_post
856    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
857    o move wVel computation at the end of the time step, in S/R integr_continuity
858    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
859    o update timeave pkg for wVel diagnostic.
860    checkpoint46j_pre
861    
862    checkpoint46i_post
863    o Clean up AIM package (and keep the results unchanged):
864      include CPP_OPTION and use IMPLICT NONE in all routines ;
865      declare all the variables _RL ; use _d 0 for all numerical constants.
866      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
867    
868    checkpoint46h_post
869    o cleaned up the use of rhoNil and rhoConst.
870      - rhoNil should only appear in the LINEAR equation of state, everywhere
871        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
872        and the dynamical equations are all divided by rhoConst
873    o introduced new parameter rhoConstFresh, a reference density of fresh
874      water, to remove the fresh water flux's dependence on rhoNil. The default
875      value is 999.8 kg/m^3
876    o cleanup up external_forcing.F and external_forcing_surf.F
877      - can now be used by both OCEANIC and OCEANICP
878    checkpoint46h_pre
879    
880     Added code to convert surface volume flux (fresh water) into
881     a mass flux when using P coordinates in the ocean (OCEANICP).
882     Note: It assumes you have set rho0=rhoConst=density of fresh water.
883    
884    checkpoint46g_post
885    o Include a new diagnostic variable phiHydLow for the ocean model
886      - in z-coordinates, it is the bottom pressure anomaly
887      - in p-coordinates, it is the sea surface elevation
888      - in both cases, these variable have global drift, reflecting the mass
889        drift in z-coordinates and the volume drift in p-coordinates
890      - included time averaging for phiHydLow, be aware of the drift!
891    o depth-dependent computation of Bo_surf for pressure coordinates
892      in the ocean (buoyancyRelation='OCEANICP')
893      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
894        Theta, Salinity, and Pressure in the parameter list. This routine is
895        presently contained in find_rho.F. This routine does not give the
896        correct density for 'POLY3', which would be a z-dependent reference
897        density.
898    o cleaned up find_rho
899      - removed obsolete 'eqn' from the parameter list.
900    o added two new verification experiments: gop and goz
901      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
902    checkpoint46g_pre
903    
904    checkpoint46f_post
905    o Enable tangent linear (forward mode) gradient checks:
906      - extended active file handling to g_... files
907      - added TANGENT_SIMULATION to theSimulationMode
908      - extended grdchk package accordingly
909    o added tangent linear setup in verification/carbon/code_ftl
910    o added adjoint setup in verification/front_relax/code_ad
911    
912    checkpoint46e_post
913    o Added new equation of state -> MDJWF
914      - EOS of McDougall et al., 2002, JAOT, submitted
915      - caveat: the equation of state is only valid for a smaller (more
916        realistic?) range of values than JMD95P/Z and UNESCO
917      - added masks to the calculation of pressure in store_pressure
918      - added more check values for density in check_eos (ini_eos.F), some of
919        the old check values are out of the range of the MDJWF-eos, so don't
920        expect perfect matches for those
921    checkpoint46e_pre
922    
923    checkpoint46d_post
924    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
925      'OCEANICP', also initialised field pressure correctly in ini_eos in the
926      case of pressure coordinates. eosType='JMD95Z' in
927      combination with buoyancyRelation='OCEANICP' now causes an error.
928    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
929      in find_alpha/beta.
930    checkpoint46d_pre
931    
932    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
933      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
934    
935    checkpoint46c_post
936    o Changes necessary for ocean in p-coordinates
937     -  Added new buoyancy relation = 'OCEANICP'
938     -  Added new parameters = gravitySign (this used to be contained inside
939        the factor dRdZ which I added when we first switched to R coordinates).
940     X GM/Redi is not compatible (yet)
941     X bottom drag and no-slip need to be debugged.
942    checkpoint46c_pre
943    
944    checkpoint46b_post
945    o Added new equation of state -> JMD95Z and JMD95P
946      - EOS of Jackett and McDougall, 1995, JAOT
947      - moved all EOS parameters into EOS.h
948      - new routines ini_eos.F, store_pressure.F
949    o Added UNESCO EOS, but not recommended because it requires
950      in-situ temperature (see JMD95)
951    o Modified formatting for knudsen2.f in utils/knudsen2 and added
952      unesco.f to be used with POLY3
953    checkpoint46b_pre
954    
955    checkpoint46a_post
956    o Added (atmospheric) pressure loading
957      - new field in FFIELDS.h, etc...
958      - new cpp flag ATMOSPHERIC_LOADING
959    o Changed hFacC to _hFacC in calc_phi_hyd.F
960    o Added SHORTWAVE_HEATING to some files for consistency
961    checkpoint46a_pre
962    
963    checkpoint46
964    further merges from release1_p5
965    o new ctrl package
966      - adopted from ECCO environment to enable optimization
967      - added Eliassen Palm fluxes to controls
968    o added Eliassen Palm flux controls to gradient check package
969    o cost package
970      - Compatible with new ctrl package
971      - added Eliassen Palm cost hooks
972      - modif's of existing cost functions
973    o Adjoint-related bug fixes in kpp:
974      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
975      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
976    o autodiff package
977      - flow directives:
978        + new for S/R do_the_model_io
979        + enhanced for S/R checkpoint
980        + new gmredi.flow
981      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
982        disable adcommon.h/g_common.h by default.
983      - fixed problem for adjoint of global_max
984    o modified verification/carbon/
985    o New setup for adjoint of global_ocean
986    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
987    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
988    o incorporated hooks for sponge layer code (external_forcing.F)
989    
990    checkpoint45d_post
991    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
992    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
993      (affects plume_on_slope "cg2d" output)
994    o add new parameter deltaTfreesurf for free-surface time stepping
995    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
996    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
997    o change phiMin in exp1 (to agree with documentation)
998    o add new flags:
999     - T,S forcing inside/outside Adams-Bashforth
1000     - turn off temp,salt advection and/or forcing
1001     - for each tracer, define internal flag for multiDimAdvection & A-B
1002    o monitor: change definition of KE to check conservation of Energy
1003    
1004    checkpoint45c_post
1005    o Removed f90 comments ("!")
1006    o Modified initialisations to enable exf package for MITgcm
1007      (without invoking ECCO_PACKAGE).
1008    o modifications to gradient check package (Martin Losch)
1009      - enable centered differences
1010      - modified format of standard output
1011    
1012    checkpoint45b_post
1013    o cleaned exchange calls in cg2d
1014    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1015    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1016      to configure barotropic setup (Martin Losch)
1017    o moved some initialisations within bi,bj loop in dynamics
1018      (TAF flow dependency)
1019    o in initialise_varia, moved call packages_init_variables
1020      before convective_adjustment_init
1021      (corresponding adjustment of TAF tape initialisation).
1022    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1023    
1024    checkpoint45a_post
1025    o compute Rho over the whole domain (extend iMin,jMin indices)
1026    o specific exchange for X-slice domain (case Ny=1)
1027    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1028    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1029    
1030    checkpoint44h_post = checkpoint45
1031    o Fix to restore differentiability:
1032      place at which packages_init_variables is called in
1033      initialise_varia is crucial for reverse control flow.
1034    o modifications in GMRedi to enable stable adjoint
1035      (corresponding modif's in thermodynamics, dynamics)
1036    o added missing hook for sponge layer code in external_forcing
1037    o modified test cost functions
1038    o storing in gad_advection (plus removal of write(0,*)!
1039    o missing headers TR1.h added in convective_adjustment routines
1040    o errorMessageUnit set non-equal zero in eeboot
1041      (conflict on some platforms, e.g. IBM SP3)
1042    o modified carbon verif.
1043    
1044    checkpoint44h_pre
1045    o vertical grid option: allow to put the Interface at the middle between
1046      2 cell-centers ; replace delZ in pkg/kpp by drF.
1047    o GM Advective form: Tracers are advected using the residual transport (=
1048      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1049    
1050    checkpoint44g_post
1051    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1052      results) ; ifdef missing in thermodynamics.F
1053    
1054    checkpoint44f_pre,checkpoint44f_post
1055    o added PTRACERS package
1056      This allows an arbitrary number of passive tracers to be integrated
1057      forward simultaneously with the dynamicaly model.
1058      + Implemented so far:
1059        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1060        - I/O and checkpointing
1061        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1062      + Not implemented so far:
1063        - KPP
1064        - OBCS
1065      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1066        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1067        line in data.pkg.
1068      + This package is disabled by default since it increases storage.
1069    
1070    
1071    o testscript: added -cleanup option
1072    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1073                 b) enable to filter 2D fields.
1074    
1075    checkpoint44e_pre,post
1076    o re-wrote convective adjustment to use pre-calculated weights
1077      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1078      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1079      Original calls to convect() still in place.
1080    
1081    chkpt44d_pre,post
1082    o added missing EXCLUDE_MONITOR flags
1083    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1084      (incompatible typ in MIN/MAX expressions caused problems
1085      on IBM SP3)
1086    o in genmake added variable MAKEDEPEND
1087      plus resetting for case SunOS
1088    o added timer_stats.c routine for IBM SP3
1089    o removed variables in dynamics
1090    !!! I forgot to create tag chkpt44d_pre !!!
1091    !!! But chkpt44d_pre = chkpt44c_post    !!!
1092    
1093    o real fresh water flux implemented with non-linear free-surface.
1094    
1095    chkpt44c_pre,post
1096    o few fix (mask in shap_s2, EmPmR in external_field_load,
1097      USE_NATURAL_BCS in solve_for_P);
1098    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1099    
1100    checkpoint44b_pre/_post
1101    o merge of relevant stuff from the ecco-branch:
1102      - genmake: removed $S64 overwrite for case SunOS
1103      - pkg/exf: update and corrections for field swapping and obcs
1104      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1105                  harmonized between ECCO and MITgcm
1106      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1107                      updated checkpointing_lev... lists for obcs
1108      - model/src: minor changes in forward_step, plot_field
1109                   added directive for divided adjoint in the_main_loop
1110      - pkg/mdsio: added mdsio_gl_slice
1111    
1112    o check parameters & config (chkpt44a_pre,post)
1113    o OBC and NonLin_FrSurf.
1114    
1115    checkpoint44
1116    o fix bug in mom_vi_del2uv
1117    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1118    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1119    o update AIM experiments (NCEP input files)
1120    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1121    o added some stuff for AD
1122    
1123    checkpoint43
1124    o added two new advection tests
1125    o added global 4x4 degree ocean test
1126    o added test of H&S94 with free surface on cube
1127    o some final mods for gradient check, adjoint,...
1128    
1129    checkpoint42
1130      Fixed AD-related problems:
1131    o Store directives up-to-date with re-arranged Adams-Bashforth
1132      (mainly thermodynamics.F)
1133    o New store directives for multi-dim. advection schemes
1134      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1135      * new common block and key passkey
1136      (mainly gad_advection.F)
1137    o Modified store directives for split of dynamics/thermodynamics
1138      for the case ALLOW_KPP
1139    o Cleaned argument list for timestep_tracer.F
1140    
1141    checkpoint41
1142    o re-formatted/added comments in prologues of key subroutines
1143      to work with protex
1144    
1145    checkpoint40
1146    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1147    o added FLT (floats) package from Arne along with demo. experiment
1148    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1149      implementation of forward-in-time forcing terms
1150    o more mods for non-linear free-surface including new variable
1151    o modified multi-dim method to work on cube
1152    o bug fix in KPP (from DM)
1153    
1154    checkpoint40pre9
1155    o added DST advection schemes
1156    o fix MPI bug on SGI's
1157    o modifications for non-linear free-surface
1158    o fixed conditionals for fixed flow/passive tracer only mode
1159    o added tension/strain form of stress tensor
1160    o changes to commenting of arguments for TAF/TAMC
1161    o added/updated many matlab scripts
1162    o added multi-dimensional advection method for tracers
1163      
1164    checkpoint40pre8
1165    o new package rw/
1166      Added method for dumping intermediate local arrays:
1167      mdsio_writetile - same as mdsio_writefield except works from inside
1168                        bi,bj loop
1169      mdsio_writelocal - same as mdsio_writetile except works for local
1170                         arrays
1171      write_local_r? - higher-level wrapper for mdsio_writelocal
1172      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1173      Example given at end of mom_vecinv.F that dumps some local arrays.
1174    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1175      control flux-form versus vector invariant code.
1176      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1177      or genmake -DISABLE ...
1178    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1179      (additional storing is now needed for case vecinv;
1180      currently nothing implemented to switch this storing off
1181      in case fluxform is used since no CPP flag available).
1182    
1183    checkpoint40pre7
1184    o bug fix in dynamics.F
1185      calc_viscosity called before k=1,Nr loop.
1186    o added some #ifdef's ALLOW_PASSIVE_TRACER
1187    o cleaned initialisations in ctrl_map_ini
1188      related to TAF
1189    
1190    checkpoint40pre6
1191    o split dynamics into thermodynamics & dynamics
1192    o corresponding split of calc_diffusivity into
1193      calc_diffusivity, calc_viscosity
1194      (kpp_calc_diff, kpp_calc_visc).
1195    o Added diffkr, kapgm to control variables
1196    o bug fix in gmredi_slope_limit for ldd97
1197    
1198    checkpoint40pre5
1199    o proper initialization of Adams-Bashforth time stepping
1200      + uses forward step for very first step of model (iter=0)
1201    o re-generated *all* output since almost all output is modified by this
1202      change (sorry but we've been putting this one off for about 2 years)
1203      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1204        *not* regenerated since they are already out of date and I don't
1205        want to create the impression that they are suddenly working.
1206    o removed KAP stuff for DEC's
1207    o modified/added many .cvsignore files in */code and */input
1208    o added new expt "solid-body.cs-32x32x1"
1209      + this uses an alternative form of ini_curvilinear_grid.F which
1210        is not necessarily any better than the current one...
1211    
1212    checkpoint40pre4
1213    o added re-initialisations of utrans,vtrans,rtrans in
1214      calc_common_factors which are crucial for TAF.
1215    o extended iMin,jMin range for calc_common_factors,
1216      calc_diffusivity
1217    o added option ALLOW_PASSIVE_TRACER
1218    o a few minor updates and fixes
1219    
1220    checkpoint40pre3
1221    o created calc_gtr1.F for gad package
1222    o split the_main_loop and re-introduced forward_step
1223    o some recomputations of nIter0 for TAMC
1224    
1225    checkpoint40pre2
1226    o Updated to latest branch of AJA, JMC
1227    o Added gradient check package
1228    o Added routines for passive tracer handling
1229    o Added carbon sequestration sensitivity experiment
1230    
1231    checkpoint39
1232     o Modifications and fixes to support TAMC
1233       (mainly missing or wrong directives)
1234     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1235       in addummy_in_stepping
1236     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1237     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1238     o Included following packages:
1239       cal: calendar
1240       exf: external forcing
1241       ecco: essential routines to control use of cal, exf
1242             (NB: this is not the full ECCO environment)
1243     o disabled some packages by default in genmake
1244    
1245    checkpoint38
1246     o see notes_c37_adj.txt
1247     o corrected wrong layer index in external_forcing_t
1248     o replaced the_main_loop/forward_step by the_main_loop
1249     o removed forceoutput from write_state
1250       (replaced criteria for initial/final state)
1251     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1252    
1253  checkpoint37  checkpoint37
1254   o mdsio.F routine split and packaged in pkg/mdsio   o mdsio.F routine split and packaged in pkg/mdsio
1255     (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not     (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not

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