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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.213 by heimbach, Tue Nov 25 16:28:48 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o Fixing OPTIONS files for use of exf:
7      - ALLOW_ECCO not needed
8      - ECCO_CPPOPTIONS.h should not be included from
9        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
10        as has been the case in the past
11      - All cal/exf related options are currently set in
12        single header file. Should remain so until we
13        agree on a consistent new policy.
14    
15    checkpoint52b_post
16    o new version: "thsice" of thermodynamic sea-ice pkg:
17     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
18     - modify fluxes but do not change theta directly;
19     - light cleaning of bulk_force pkg (still needed with thsice).
20     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
21       + output_thsice.txt to test thsice & bulk_force pkgs.
22    o put back grid & coriolis monitor output.
23    checkpoint52b_pre
24    
25    o call "do_the_model_io" at the beginning (=> dump initial state)
26    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
27    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
28      (need info on NUMBER_OF_PTRACERS)
29    o missing PTRACERS headers in some routines
30    o default tamc.h in pkg/autodiff supposed to crash
31      to ensure proper customization
32    
33    checkpoint52a_post
34    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
35      - moved surfaceTendencyTice from pkg/seaice to main code
36      - subroutine FREEZE_SURFACE now limits only surface temperature
37        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
38        => new output.txt for global_ocean.cs32x15 & global_with_exf
39      - keep the old version of FREEZE for backward compatibility;
40        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
41      - corresponding modifs for TAF directives
42    o added surface flux output variables to TIMEAVE_STATVARS
43    o time-averaged output for pkg/ptracers
44    o fix problem with ECCO-related divided adjoint
45      snapshot file was missing some ad-variables,
46      but no warning issued by TAF
47    
48    checkpoint52a_pre
49    o some bug fixes for #undef REAL4_IS_SLOW
50    
51    checkpoint52 = ecco_c52_e35
52    o after testing adjoints of checkpoint51u_post
53    
54    checkpoint51u_post
55    o this is the post-merge tag of the ecco-branch
56      (needs another clean checkout and re-testing)
57    o various natl_box_adjoint configs and results
58      but no input fields
59    o obcs adjoint not yet merged!
60    o adding ECCO global 1x1 and 2x2 degree configs
61    o updated/extended some store directives for seaice
62    o pkg/ecco now containes ecco-specific part of cost function
63    o top level routines the_main_loop, forward_step
64      supersede those in model/src/
65      previous input data.cost now in data.ecco
66      (new namelist ecco_cost_nml)
67    o in ctrl/ cleaned some cross-dependencies and updated CPP options
68    
69    checkpoint51t_post
70    o this is the pre-merge tag of the ecco-branch
71    
72    checkpoint51s_post
73    o cleanup: removed various obsolete #define-s
74    o pkg/grdchk
75      - renamed 'ph-grd 3' to 'grad-res'
76      - merged from ecco-branch
77        (remaining bug fixes for obcs gradient checks)
78      - additional high-precision output for testreport
79        (grep for 'precision_grdchk_result')
80    
81    checkpoint51r_post
82    o cleaned up or removed CPP_OPTIONS.h files
83    o updated results for some of the tests to reflect the new
84      optfiles (-ieee: -O0 instead of -O3)
85    
86    checkpoint51q_post
87    o cd_code:
88      - moved cd_scheme.F -> cd_code_scheme.F
89      - separate read_checkpoint from cd_code_ini_vars.F
90      - separated cd_code part from write_checkpoint
91      - updated AD_SOURCE, generated .flow
92      - added CD_CODE_VARS.h to the_main_loop
93      - Moving cd_code specific store dir.s to pkg/cd_code
94    o ctrl package totally restructured
95      - pack/unpack now optional and decoupled from
96        xx_/adxx_ I/O
97      - ctrl_pack/unpack cleaned
98        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
99      - confined inclusion of AD_CONFIG.h to where necessary.
100    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
101    
102    checkpoint51p_post
103    o create initial cd_code package
104      - WARNING: the initialization of fields within packages
105        is broken because INI_FIELDS (where READ_CHECKPOINT is
106        called) is called *before* PACKAGES_INIT_VARIABLES.
107        This seems to be backwards since
108        1) its important to initially zero the entire field including
109           the "halo" region
110        2) zeroing needs to be done *before* reading pickup info
111           and the pickup call might or might not happen in any
112           particular run
113      - this needs an overhaul for R2
114    o cleanup verification/*/code/GMREDI_OPTIONS.h
115    o cleanup testreport
116    
117    checkpoint51o_post
118    o bringing AD-related verif's up to date with genmake2
119      - carbon/
120      - global_ocean.90x40x15/
121      - hs.94.1x64x5/
122      - (front_relax/ )
123    o (more) consistent directory structure for AD-related verif.'s
124    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
125    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
126    o bug fix in find_alpha.F for MDJWF:
127      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
128        change rho -> rho-rhoConst
129      - replace call find_rho to find_rhonum
130    o initialisation of rFlx extended to full array (required by TAF)
131      and shifted to thermodynamics
132    o removed PTRACERS.h in ptracers routine
133    o added surfacetendencyPtr to S/R parameter list pracers_forcing
134    o Correcting initialisations for fVerU, fVerV.
135    o helping TAF to recognize dependency on kUp for
136      fVerU, fVerV
137    o Replacing delZ by delR in pkg/ctrl/
138    checkpoint51o_pre
139    
140    o undid all of cp51 pending some cleanups and discussion
141    o added the [#include "AD_CONFIG.h"] statement to all files that need
142       it for adjoint/tl #defines
143     o re-worked the build logic in genmake2 to support AD_CONFIG.h
144     o removed tools/genmake since it no longer works
145    
146    checkpoint51n_post
147    o modifications to make FREEZE flux visible to pkg/kpp
148      - moved surfaceTendencyTice from pkg/seaice to main code
149      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
150      - subroutine FREEZE now limits only surface temperature
151        (this means new output.txt for global_ocean.90x40x15,
152         global_ocean.cs32x15, and global_with_exf)
153    o added surface flux output variables to TIMEAVE_STATVARS
154    
155    checkpoint51n_pre
156    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
157    o added [#include "AD_CONFIG.h"] to all files that use the following
158      defines:
159      - ALLOW_ADJOINT_RUN
160      - ALLOW_TANGENTLINEAR_RUN
161      - ALLOW_ECCO_OPTIMIZATION
162    
163    checkpoint51m_post
164    o incorporating changes to get TAMC/TAF working in genmake2
165      - added new TAMC/TAF targets to the Makefile
166      - various cleanups related to package handling
167      - these changes should have no impact on the forward model
168    
169    checkpoint51l_post
170    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
171     - faster algorithm for cal_addtime.F
172     - higher precision arithmetic, where needed
173     - pkg/exf *startdate variables changed from calendar date to
174       model integration time
175    
176    checkpoint51l_pre
177    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
178    o enable to apply restoring on S & T only in a latitude band.
179    o update output (external_forcing_surf modif. change truncation errors)
180       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
181    
182    checkpoint51k_post
183    o change default to: useNHMTerms=.FALSE.
184     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
185       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
186     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
187        exp1, ideal_2D_oce
188     - change data file of oceanic exp (leave the results unchanged for now)
189       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
190    o set gravitySign automatically according to the vertical coordinate used
191      (and change sign: back to "logical" value: +1 when R increases downward)
192    o added an include barrier to the default CPP_OPTIONS.h and
193      removed the #include "PACKAGES_CONFIG.h" from it
194    o fix a bug in mom_fluxform (from chk51j_post)
195    
196    checkpoint51j_post
197    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
198    o adjusted some flow directives (dynamics, thermodynamics)
199    o added cubed-sphere case to test cost function
200    o heckpoint_lev?_directives.h now include
201      pkg-specific directives, whenever those are enabled.
202    o Moving pkg-specific flow directives to corresponding pkg
203      Moving pkg-specific differentiation list to corresponding pkg
204      Moving pkg-specific checkpoint-lev storing to corresponding pkg
205      ---> conventions are
206           - pkg_ad.flow
207           - pkg_ad_diff.list
208           - pkg_ad_check_lev?_dir.h
209    
210    checkpoint51i_post
211    o merge of the branch-genmake2
212      - knowingly breaks the older genmake
213      - automatic generation of all ALLOW_${PKG_NAME} defines
214      - new testreport supersedes older testscript
215    o large number of package inclusion and header cleanups
216    checkpoint51i_pre
217    
218    o new output for adjoin of global ocean vector invariant
219    o fix for checkpoint of thermodynamic seaice and bulk_force
220    o Steph gchem various cleanups
221    
222    checkpoint 51h_pre
223    o fixed some single quotes
224    o modify gchem pkg to be more versatile
225    o modifications to clean up dic pkg
226    o add pkg/cfc
227    
228    checkpoint51g_post
229    o provide links for ARPACK and ADM*TLM
230    o start removing verification/vero/
231    o update AD-related stuff
232      (in particular some IF-statements in model/src/ routines)
233    o adding to verification/global_ocean.90x40x15/ adjoint of
234      vector invariant setup
235    
236    checkpoint51f_post
237    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
238    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
239      of tracer Green's fucntions for ocean inversion project.
240    
241    checkpoint51f_pre
242    o Added on-the-fly spatial interpolation capability
243        "USE_EXF_INTERPOLATION" to pkg/exf.
244      - This is a temporary Cartesian-grid hack until
245        the super-duper ESMF coupler becomes available.
246      - See verification/global_with_exf/README for usage example.
247      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
248        flags and modified pkg/seaice accordingly.
249    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
250        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
251        non-local transport term.
252    
253    checkpoint51e_post
254    o pkg/mom_vecinv:
255      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
256      - add time-ave diagnostic of vorticity advection.
257    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
258    o atmospheric geopotential: - include water vapor effect;
259                                - use p^kappa in p* scaling.
260    o land pkg: read initial state from files.
261    o AIM : add stratospheric drag in the upper level
262    
263    checkpoint51d_post
264    o change function ILNBLNK (=> last non-blank char.) to return zero
265      (instead of the string length) when the string. char is empty
266    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
267    o modif's to restore TAMC compatibility
268      - avoid "_d" constructs in PARAMETER declarations
269      - avoid interrupting lines by comment lines
270    o Use cluster local disks for purely local I/O
271      vs. globally visible disks needed for ctrl stuff
272      (merged from ecco-branch)
273      - new active_file_loc... and mdsio_..._loc routines
274      - affected packages: autodiff, ctrl, grdchk, mdsio
275    
276    checkpoint51c_post
277    o introducing integer flag debugLevel
278      - debLevZero: suppress all output
279      - debLevA: standard
280      - debLevB: equivalent to current debugMode=.TRUE.
281    o introducing pathname variable mdsioLocalDir for mdsio
282      that can be specified at runtime
283      (relevant for cluster I/O to local disk)
284    `
285    >>>checkpoint51b_post
286    adjoint of ptracers
287    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
288    o extended state in checkpoint_lev?, etc.
289    o alternative ctrl/cost with tr1 or ptracer
290    o new comlev1_bibj_ptracers
291    o new ptracers.flow
292    o made ptracers_forcing same as external_forcing_s
293    o added verification for adjoint with ptracers
294      - adm. grdchk fail so far
295      - tlm. grdchk OK
296      - checked tapelev/comlev recomputations: OK
297    <<<checkpoint51b_pre
298    
299    checkpoint51a_post
300    o added code for biogeochemistry package
301      - new pkgs: dic, gchem
302      - new subroutine in ptracers
303    o modify code for biogeo packages
304      - in model/src and pkg/ptracers
305    
306    checkpoint51
307    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
308      - autodiff, ctrl, exf, grdchk, seaice
309      kept separate packages
310      - cost, ecco, obcs
311    o updating verification/internal_wave, verification/lab_sea
312      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
313    
314    checkpoint50i_post
315    o Preparing next differentiable checkpoint and sync
316      of MAIN vs. ecco-branch
317      - 1st step: this one is differentiable
318      - 2nd step: next(! not this) checkpoint will have updated packages
319                  from ecco-branch)
320    
321    checkpoint50h_post
322    o new package "land": provide surface BC for AIM.
323    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
324    o AIM: use true log-P extrapolation for near surface temp (= as in
325        F.Molteni paper) ; update aim.5l_cs output.
326    o New variable in PARM03 for more flexible pickups
327    o somewhat cleaned package initialisation sequence for
328      ctrl/ cost/ ecco/ in packages_... routines
329    
330    checkpoint50g_post
331    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
332      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
333      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
334        made the default because of faster convergence than ADI
335    
336    checkpoint50f_post
337    o exf totally restructured
338      - replaced all exf_set_ routines by one generic exf_set_gen.F
339        and made sure it's still differentiable
340      - split exf_getffields.F into new exf_bulkformulae.F
341      - exf_inscal_/exf_outscal_ suffixes consistent with field names
342      - updated adjoint/makefile and relevant verif. accordingly
343    
344    checkpoint50f_pre
345     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
346          + change Evap over land. (update aim.5l_cs output)
347     o added missing .cvsignores and made uniform across expts
348     o changed configuration of tidal_basin_2d expt
349     o added pkg/debug functions for tracing code in fatal crashes
350     o tidied pkg/monitor to use MONITOR_OPTIONS.h
351     o new fn in pkg/monitor to stop model if solution grows too big
352     o removed lots of single quotes from comments
353    
354    checkpoint50e_post
355    o make KPP work with PTRACERS
356     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
357       nearly a copy of kpp_transport_s
358     - there is no analogue to SurfaceTendencyS, so I have to use
359       gPtr(of the surface layer) instead
360    o add a new platform SunFire+mpi (SunFire 15000) to genmake
361    checkpoint50e_pre
362    
363    checkpoint50d_post
364    o change kpp output from multiple-record state files to single-record state
365      files analogous to write_state.F
366    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
367      analogous to the cg2d-related output.
368    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
369      so that writing to internal file fn (with length 512) fails.
370    checkpoint50d_pre
371    
372    checkpoint50c_post
373    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
374    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
375    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
376    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
377    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
378    
379    checkpoint50c_pre
380    Merging from release1_p13:
381    o bug fix for pkg/seaice dynamic solver
382    o Added SEAICE_initialHEFF to pkg/seaice
383    
384    checkpoint50b_post
385    o store u*,v* in gU,V instead of in guNm1,gvNm1
386    o in order to put the momForcing out of the Adams-Bashforth:
387      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
388      to timestep.F
389    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
390    o re-generate output for highly sensitive test-exp:
391       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
392    
393    checkpoint50b_pre
394    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
395    o corrected CPP option mismatch in exf_Bulk... functions for case
396      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
397    
398    checkpoint50a_post
399    o Bug fix for merging between c50 and KPP.
400      ikey was passed from thermodynamics to kpp_calc via
401      common block rather than being recomputed in kpp_calc,
402      in contradiction with new key itdkey.
403      New key ikppkey created, and tamc.h headers updated.
404    
405    checkpoint50
406    - 2nd step of merge with ecco-branch:
407      merge changes in ecco-branch back into main trunk
408    - bug fix in find_alpha
409    - more storing in gmredi_calc_tensor.F, kpp_routines.F
410    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
411    - merged some sliced AD support routines
412    
413    checkpoint49
414    merged from ecco-branch:
415    o exf:
416      - Enable initialisation of forcing fields to constant
417        (runtime) values.
418      - in exf_getffields.F
419        Reduce i-/j-loop to interior domain, discarding overlaps.
420        That also fixes wrong TAF-key computations for key_1, key_2
421        with bulf formulae.
422      - exf_init.F modify #ifdef for exf_init_evap
423      - exf_getffieldrec.F, ctrl_getrec.F
424        The following INT-usages are not safe:
425          fldsecs  = int(fldsecs/fldperiod)*fldperiod
426          fldcount = int(fldsecs/fldperiod) + 1
427        and were modified.
428    o autodiff: checkpoint_lev...
429      - updated storing for bulk formulae (some arrays were missing)
430      - added state for seaice package
431      - synchronized with main branch
432    o DIVA:
433      Modif.s in
434      - the_main_loop.F
435      - the_model_main.F
436      and added cost_final_restore.F cost_final_store.F
437      o With these changes, it is possible to fully separate
438        the first forward run to compute the cost function (mdthe_main_loop)
439        and adjoint runs over individual DIVA intervals (adthe_main_loop)
440        into separate model executions.
441        This enables better tuning of DIVA to given queue sizes.
442      o Loss of cost function value in consecutive DIVA runs is
443        fixed by storing to 'costfinal' file.
444      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
445        beginning/end of adjoint integration is accounted for.
446      The current changes apply to TAF-1.4.26.
447      TAF has one remaining bug, requiring one manual change
448      (see MITgcm manual).
449    o cal: synchronized between MAIN and ecco-branch
450    
451    checkpoint48i_post
452    o Changes to restore differentiability of code w.r.t. previous tag
453      (mostly adding new routines to make list and replacing
454      pressure by totPhiHyd).
455    o Updated and merged grdchk package
456      - has both ADM and TLM checks
457      - works for single- and multi-proc.
458      - output cleaned
459      - worked successfully for parallel DIVA
460    o genmake:
461      - Adding -platform=SP4
462      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
463    o Modif. for DIVA:
464      ctrl_unpack should not be called in intermediate DIVA interval.
465      (similar thing would apply for active files such as
466      tbar, sbar, psbar, which should not be reinitialised;
467      only relevant for ecco-branch)
468    
469    checkpoint48h_post
470    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
471    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
472    o Added SEAICE_initialHEFF to pkg/seaice
473    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
474    
475    checkpoint48g_post
476    --- EOS:
477    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
478      store total Potential in totPhyHyd for diagnostics & EOS.
479    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
480    --- Pressure/geopotential gradient:
481    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
482    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
483      ( changes results of global_ocean_pressure )
484    o NLFS + z-coord.: add eta*Rho' contribution.
485    o accurate phiHyd when using interface-W at the middle between 2 centers
486     ( changes results of ideal_2D_oce )
487    o includes r* 2nd term in potential gradient.
488    
489    checkpoint48f_post
490    Merging from release1_p12:
491    o Modifications for using pkg/exf with pkg/seaice
492      - improved description of the various forcing configurations
493      - added basic radiation bulk formulae to pkg/exf
494      - units/sign fix for evap computation in exf_getffields.F
495      - updated verification/global_with_exf/results/output.txt
496    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
497      (SBO) core products, including oceanic mass, center-of-mass,
498      angular, and bottom pressure (see pkg/sbo/README.sbo).
499    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
500      to avoid negative values in shallow regions.
501      - updated verification/natl_box/results/output.txt
502      - updated verification/lab_sea/results/output.txt
503    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
504    o Added useSingleCpuIO option (see PARAMS.h).
505    o Updated useSingleCpuIO option in mdsio_writefield.F to
506      work with multi-field files, e.g., for single-file pickup.
507    o pkg/seaice:
508      - bug fix in growth.F: QNET for no shortwave case
509      - added HeffFile for specifying initial sea-ice thickness
510      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
511    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
512      kpp_transport_t.F, forward_step.F, and the_main_loop.F
513    o pkg/seaice:
514      - adjoint-friendly modifications
515      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
516    
517    checkpoint48e_post
518    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
519    o dynamics: change definition of computational domain & adapt mom_fluxform
520      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
521    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
522        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
523        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
524        global_ocean.90x40x15 global_with_exf global_ocean_pressure
525        inverted_barometer solid-body.cs-32x32x1
526      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
527    
528    checkpoint48d_post
529    o in preparation for r*:
530     a) use pre-computed gradient of hydrostatic potential:
531        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
532     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
533        => affects results of glob_oce_pressure (different truncation error)  
534      update output.txt of ideal_2D_oce & global_ocean_pressure
535    
536    checkpoint48d_pre
537    o in preparation for r*:
538      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
539      pass the 2 comp. of the grad. as arguments to momentum S/R.
540      but for the moment, only used if it does not change the results.
541    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
542    
543    checkpoint48c_post
544    Modifications in treatment of initial flux forcing controls
545    to avoid extra storing of flux fields.
546    
547    checkpoint48c_pre
548    o Added tidal_basin_2d experiment (currently 1D!)
549    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
550    
551    checkpoint48b_post
552    o r* coordinate added in #ifdef NONLIN_FRSURF block.
553     (modification to pressure gradient not yet implemented)
554    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
555      (for U & V) that are used for vertical advection of momentum.
556    
557    checkpoint48a_post
558    o In preparation for r*, use temp. array to compute vertical transport
559       in flux-form momentum pkg. => change results of few test-exp.
560      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
561                        lab_sea, natl_box & plume_on_slope
562    
563    checkpoint48
564    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
565    
566    checkpoint47j_post
567    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
568    o moved adexch from forward_step to addummy_in_stepping
569    o added exch in ctrl_map_...
570    o aveFreq.=0. at end of cost_final to avoid overwrite in
571      reverse checkpointing loop
572    o Yet more changes in gmredi:
573      * adgmredi_calc_tensor
574        avoiding all recomputation of gmredi_slope_limit
575      * adgmredi_x/y/rtransport
576        added flag for excessive storing to avoid recomp. of
577        u/v/rtans, dTdx/y/z
578        -> this is not really necessary and very memory-consuming
579      * adgmredi_slope_psi:
580        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
581      * gmredi_slope_limit
582        re-activated full calculation of taperfct for case 'ac02'
583    o updating verification/ adjoints of carbon, global_ocean.90x40x15
584    
585    checkpoint47i_post
586    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
587    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
588      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
589    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
590    o gmredi: fix few bugs.
591    
592    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
593    This will be a good checkpoint to plug into the ecco-branch.
594    o few modif.'s to get latest version adjointed
595      (mainly kick out code in ini_linear_phisurf)
596    o modif's to run adjoint with exactConserv
597    o case GM_BOLUS_ADVEC should be cleaned
598      S/R gmredi_slope_psi should be cleaned
599    o verification/carbon now has exactConserv=.TRUE.
600    
601    checkpoint47g_post
602    o time-average AIM output: becomes independent from statvars time-average
603      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
604    o After TAF bug fix:
605      Tested adjoint of gmredi package.
606      Tests were done with checkpoint47 rather than with latest
607      checkpoint47f_post since the latter is broken for the adjoint
608      verification/carbon/ contains both ADM and TLM gradient checks.
609    Here they are, before they get changed/lost/stolen.
610    Mostly modif.'s to fix numerical sensitivities.
611    Gradient checks OK for
612    - GM_taper_scheme:
613      * clipping
614      * ac02
615      * linear
616      * glw91
617      * dm95
618      * ldd97
619    - GMREDI_OPTIONS:
620      * GM_VISBECK_VARIABLE_K
621      * GM_NON_UNITY_DIAGONAL
622      * GM_EXTRA_DIAGONAL
623      * GM_BOLUS_ADVEC
624    in conjunction with data.gmredi parameters to be checked in
625    in a few minutes under verification/carbon/code/
626    
627    checkpoint47f_post
628    Merging from release1_p10:
629    o modifications for using pkg/exf with pkg/seaice
630      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
631        and SEAICE_EXTERNAL_FLUXES
632      - pkg/exf CPP options EXF_READ_EVAP and
633        EXF_NO_BULK_COMPUTATIONS
634      - usage examples are Experiments 8 and 9 in
635        verification/lab_sea/README
636      - verification/lab_sea default experiment now uses
637        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
638    
639    checkpoint47e_post
640    o created a tag prior to creating a branch
641    
642    checkpoint47d_post
643    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
644      at the bottom boundary had an erroneous half slip boundary condition
645    o added bottom drag and no slip boundary condition capabilities to
646      oceanic pressure coordinates code
647    o added new verification experiment global_ocean_pressure, this experiment is
648      also described in the tutorial section of the manual
649    checkpoint47d_pre
650    
651    checkpoint47c_post
652    o Added a verification experiment for a global cubed-sphere ocean run
653      -  verification/global_ocean.cubed32x32x30
654      -  uses pkg/therm_seaice and pkg/bulk_forcing
655    
656    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
657    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
658      when using P-coordinate; only implemented for atmospheric config.
659    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
660      NOTES: requires option NONLIN_FRSURF to be "#define".
661    o update advect_xz/results/output.txt (left from checkpoint44g_post)
662    
663    checkpoint47b_post
664    Merging from release1_p9:
665    o pkg/seaice
666      - removed GOTO's and added taf directives
667      - double precision constants to reduce the g77 (Linux)
668        to F77 (SGI) differences reported in release1_p8
669    o tools/genmake
670      - added SGI options
671    o verification/testscript
672      - updated to that of checkpoint47a_post
673    o verification/global_ocean.90x40x15/input/eedata
674      - modified for SGI f77 compatibility
675    o verification/lab_sea
676      - added description of sea-ice model
677      - added missing matlab routines
678      - added test of thermodynamics parallelization
679    
680    checkpoint47a_post
681    o new pkg: aim_v23
682     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
683       for now, keep the same surface forcing as before.
684     - Part-Cell implemented into AIM; check that Heat & Water are conserved
685     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
686     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
687    o add diagnostic of surface correction term in monitor output
688    
689    o bulk_force and therm_seaice
690    - Two packages:  bulk_force (Bulk forcing)
691      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
692    - Earlier integration from Stephaine Dutkiewicz
693      and Patrick Heimbach.
694    - Two ifdef statements for compile time,
695       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
696    
697    checkpoint47
698    differentiable version of checkpoint46n_post
699    o bug fix in quasihydrostaticterms
700    o * "clean" adjoint code (in terms of extensive recomputations)
701        can now be obtained for all GMREDI options (i.e. for
702        - GM_VISBECK_VARIABLE_K
703        - GM_NON_UNITY_DIAGONAL
704        - GM_EXTRA_DIAGONAL
705        - GM_BOLUS_ADVEC )
706      * However, wrong gradient check problem remains unsolved.
707      * New CPP options have been introduced for different
708        tapering schemes
709    o external_fields_load now part of differentiation list
710    o pressure needs multiple storing;
711      would be nice to have store_pressure at beginning or
712      end of forward_step, e.g. by having phiHyd global (5-dim.)
713      (NB: pressure is needed for certain cases in find_rho,
714      which is also invoked through convective_adjustment).
715    o recomputations in find_rho for cases
716     'JMD95'/'UNESCO' or 'MDJWF' are OK.
717    o #define ATMOSPHERIC_LOADING should be differentiable
718    o ini_forcing shifted to begining of initialise_varia
719    o Incorporating QNVS line search routines into MITgcm
720      (this is separate code, and therefore not under pkg)
721      lsopt/, optim/
722    o Updated verification/carbon/
723      - #define GM_VISBECK_VARIABLE_K
724      - GM_taper_scheme    = 'ldd97'    
725    
726    checkpoint46n_post
727    Merging from release1_p8:
728    o verification/natl_box:
729      updating new external_fields_load routine
730    o New package: pkg/seaice
731      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
732      The sea-ice code is based on Hibler (1979-1980).
733      Two sea-ice dynamic solvers, ADI and LSR, are included.
734      In addition to computing prognostic sea-ice variables and diagnosing
735      the forcing/external data fields that drive the ocean model,
736      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
737      The implied surface heat flux is then stored in variable
738      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
739      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
740      non-local transport term.  Because this call precedes model
741      thermodynamics, temperature under sea-ice may not be "exactly" at
742      the freezing point by the time theta is dumped or time-averaged.
743      N.B.: fairly large differences in accuracy occur across
744            different platforms/compilers; comparison between
745            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
746            generated output gives:
747       T           S           U           V
748      C D M    c        m  s        m  s        m  s        m  s
749      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
750      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
751      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
752    
753      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
754    o GAD:
755      - generated new common blocks to account for call of
756        same gad routines with differing traceridentities
757        (needed to modify tracerIdentity indices in GAD.h)
758      - generated separate common blocks for case useCubedSphereExchange
759        (Department of Futurology)
760      - parameter lists to gmredi_?transport: added tracerIdentity
761      - added new key indices to tamc.h
762    o external_fields_load:
763      - added this routine to TAF list
764      - needed to make some common blocks global and additional storing
765        along the same lines as exf package (checkpoint_lev?_directives.h)
766    o exf:
767      updated external forcing package
768      - bug fixes carried over from ecco-branch
769        (missing OBCS_OPTIONS.h in two routines)
770      - enable easy to use "no forcing".
771      - added exf I/O for atmospheric loading
772      - added exf I/O for runoff data
773      - transfered scaling between exf <-> MITgcm to exf namelist
774    o Adding new verification experiment global_with_exf.
775      This verification experiment is almost identical to the
776      global_ocean.90x40x15 experiment, except that it uses
777      the exf (and cal) package instead of the
778      external_fields_load routine (cf README file).
779    
780    checkpoint46m_post
781    o modified testscript to return -- when there are no lines of "%MON" output
782    o added new flag "quasiHydrostatic" for QH mode
783      and new routine quasihydrostaticterms()
784    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
785      New routine: mom_u_coriolis_nh()
786    o fixed sign of non-hydrostatic metric terms in u and v equations.
787      Depend on correct sign of gravitySign.
788    o added work.pc* to .cvsignore in aim directories using ifc
789    o introduced flag for controllin non-hydrostatic metric terms
790    o removed gravitySign from PARM04
791    o switched to g77/ifc from pgf77 in aim experiments
792    
793    checkpoint46l_post
794    o made convective adjustment work with pressure coordinates:
795     - changed the direction of k-loop in convective_adjustment.F for the
796       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
797     - adjusted the reference pressure k-index in convective_adjustment.F
798     - adjusted the convection condition in convect.F (in analogy to
799       calc_ivdc.F)
800     - convective_adjustment no longer computes anything on the halos
801     - removed the warnings about negative salinity from find_rho.F and
802       find_alpha.F; instead the new routine look_for_neg_salinity, called
803       at the beginning of find_rho, find_alpha, and find_beta, does a
804       check of the entire slice, if CPP-option
805       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
806    checkpoint46l_pre
807    
808    checkpoint46k_post
809    o fixed the verification/global_ocean.90x40x15 experiment:
810     - new bathymetry (the world according to A., JMC, and M.)
811     - new initial fields and forcing fields (*.bin files)
812     - new POLY3.COEFFS (for the next release one should switch to a full
813       equation of state: JMD95P or MDJWF)
814     - fixed several errors and redundancies in the data file
815     - experiment uses looped cells
816     - added matlab directory with diagnostic scripts for plotting of output
817    
818    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
819     - read AIM physics parameters from a file (data.aimphys)
820     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
821    
822    checkpoint46j_post
823    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
824    o move wVel computation at the end of the time step, in S/R integr_continuity
825    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
826    o update timeave pkg for wVel diagnostic.
827    checkpoint46j_pre
828    
829    checkpoint46i_post
830    o Clean up AIM package (and keep the results unchanged):
831      include CPP_OPTION and use IMPLICT NONE in all routines ;
832      declare all the variables _RL ; use _d 0 for all numerical constants.
833      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
834    
835    checkpoint46h_post
836    o cleaned up the use of rhoNil and rhoConst.
837      - rhoNil should only appear in the LINEAR equation of state, everywhere
838        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
839        and the dynamical equations are all divided by rhoConst
840    o introduced new parameter rhoConstFresh, a reference density of fresh
841      water, to remove the fresh water flux's dependence on rhoNil. The default
842      value is 999.8 kg/m^3
843    o cleanup up external_forcing.F and external_forcing_surf.F
844      - can now be used by both OCEANIC and OCEANICP
845    checkpoint46h_pre
846    
847     Added code to convert surface volume flux (fresh water) into
848     a mass flux when using P coordinates in the ocean (OCEANICP).
849     Note: It assumes you have set rho0=rhoConst=density of fresh water.
850    
851    checkpoint46g_post
852    o Include a new diagnostic variable phiHydLow for the ocean model
853      - in z-coordinates, it is the bottom pressure anomaly
854      - in p-coordinates, it is the sea surface elevation
855      - in both cases, these variable have global drift, reflecting the mass
856        drift in z-coordinates and the volume drift in p-coordinates
857      - included time averaging for phiHydLow, be aware of the drift!
858    o depth-dependent computation of Bo_surf for pressure coordinates
859      in the ocean (buoyancyRelation='OCEANICP')
860      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
861        Theta, Salinity, and Pressure in the parameter list. This routine is
862        presently contained in find_rho.F. This routine does not give the
863        correct density for 'POLY3', which would be a z-dependent reference
864        density.
865    o cleaned up find_rho
866      - removed obsolete 'eqn' from the parameter list.
867    o added two new verification experiments: gop and goz
868      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
869    checkpoint46g_pre
870    
871    checkpoint46f_post
872    o Enable tangent linear (forward mode) gradient checks:
873      - extended active file handling to g_... files
874      - added TANGENT_SIMULATION to theSimulationMode
875      - extended grdchk package accordingly
876    o added tangent linear setup in verification/carbon/code_ftl
877    o added adjoint setup in verification/front_relax/code_ad
878    
879    checkpoint46e_post
880    o Added new equation of state -> MDJWF
881      - EOS of McDougall et al., 2002, JAOT, submitted
882      - caveat: the equation of state is only valid for a smaller (more
883        realistic?) range of values than JMD95P/Z and UNESCO
884      - added masks to the calculation of pressure in store_pressure
885      - added more check values for density in check_eos (ini_eos.F), some of
886        the old check values are out of the range of the MDJWF-eos, so don't
887        expect perfect matches for those
888    checkpoint46e_pre
889    
890    checkpoint46d_post
891    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
892      'OCEANICP', also initialised field pressure correctly in ini_eos in the
893      case of pressure coordinates. eosType='JMD95Z' in
894      combination with buoyancyRelation='OCEANICP' now causes an error.
895    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
896      in find_alpha/beta.
897    checkpoint46d_pre
898    
899    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
900      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
901    
902    checkpoint46c_post
903    o Changes necessary for ocean in p-coordinates
904     -  Added new buoyancy relation = 'OCEANICP'
905     -  Added new parameters = gravitySign (this used to be contained inside
906        the factor dRdZ which I added when we first switched to R coordinates).
907     X GM/Redi is not compatible (yet)
908     X bottom drag and no-slip need to be debugged.
909    checkpoint46c_pre
910    
911    checkpoint46b_post
912    o Added new equation of state -> JMD95Z and JMD95P
913      - EOS of Jackett and McDougall, 1995, JAOT
914      - moved all EOS parameters into EOS.h
915      - new routines ini_eos.F, store_pressure.F
916    o Added UNESCO EOS, but not recommended because it requires
917      in-situ temperature (see JMD95)
918    o Modified formatting for knudsen2.f in utils/knudsen2 and added
919      unesco.f to be used with POLY3
920    checkpoint46b_pre
921    
922    checkpoint46a_post
923    o Added (atmospheric) pressure loading
924      - new field in FFIELDS.h, etc...
925      - new cpp flag ATMOSPHERIC_LOADING
926    o Changed hFacC to _hFacC in calc_phi_hyd.F
927    o Added SHORTWAVE_HEATING to some files for consistency
928    checkpoint46a_pre
929    
930    checkpoint46
931    further merges from release1_p5
932    o new ctrl package
933      - adopted from ECCO environment to enable optimization
934      - added Eliassen Palm fluxes to controls
935    o added Eliassen Palm flux controls to gradient check package
936    o cost package
937      - Compatible with new ctrl package
938      - added Eliassen Palm cost hooks
939      - modif's of existing cost functions
940    o Adjoint-related bug fixes in kpp:
941      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
942      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
943    o autodiff package
944      - flow directives:
945        + new for S/R do_the_model_io
946        + enhanced for S/R checkpoint
947        + new gmredi.flow
948      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
949        disable adcommon.h/g_common.h by default.
950      - fixed problem for adjoint of global_max
951    o modified verification/carbon/
952    o New setup for adjoint of global_ocean
953    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
954    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
955    o incorporated hooks for sponge layer code (external_forcing.F)
956    
957    checkpoint45d_post
958    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
959    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
960      (affects plume_on_slope "cg2d" output)
961    o add new parameter deltaTfreesurf for free-surface time stepping
962    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
963    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
964    o change phiMin in exp1 (to agree with documentation)
965    o add new flags:
966     - T,S forcing inside/outside Adams-Bashforth
967     - turn off temp,salt advection and/or forcing
968     - for each tracer, define internal flag for multiDimAdvection & A-B
969    o monitor: change definition of KE to check conservation of Energy
970    
971    checkpoint45c_post
972    o Removed f90 comments ("!")
973    o Modified initialisations to enable exf package for MITgcm
974      (without invoking ECCO_PACKAGE).
975    o modifications to gradient check package (Martin Losch)
976      - enable centered differences
977      - modified format of standard output
978    
979    checkpoint45b_post
980    o cleaned exchange calls in cg2d
981    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
982    o included CPP option SINGLE_LAYER_MODE in thermodynamics
983      to configure barotropic setup (Martin Losch)
984    o moved some initialisations within bi,bj loop in dynamics
985      (TAF flow dependency)
986    o in initialise_varia, moved call packages_init_variables
987      before convective_adjustment_init
988      (corresponding adjustment of TAF tape initialisation).
989    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
990    
991    checkpoint45a_post
992    o compute Rho over the whole domain (extend iMin,jMin indices)
993    o specific exchange for X-slice domain (case Ny=1)
994    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
995    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
996    
997    checkpoint44h_post = checkpoint45
998    o Fix to restore differentiability:
999      place at which packages_init_variables is called in
1000      initialise_varia is crucial for reverse control flow.
1001    o modifications in GMRedi to enable stable adjoint
1002      (corresponding modif's in thermodynamics, dynamics)
1003    o added missing hook for sponge layer code in external_forcing
1004    o modified test cost functions
1005    o storing in gad_advection (plus removal of write(0,*)!
1006    o missing headers TR1.h added in convective_adjustment routines
1007    o errorMessageUnit set non-equal zero in eeboot
1008      (conflict on some platforms, e.g. IBM SP3)
1009    o modified carbon verif.
1010    
1011    checkpoint44h_pre
1012    o vertical grid option: allow to put the Interface at the middle between
1013      2 cell-centers ; replace delZ in pkg/kpp by drF.
1014    o GM Advective form: Tracers are advected using the residual transport (=
1015      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1016    
1017    checkpoint44g_post
1018    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1019      results) ; ifdef missing in thermodynamics.F
1020    
1021    checkpoint44f_pre,checkpoint44f_post
1022    o added PTRACERS package
1023      This allows an arbitrary number of passive tracers to be integrated
1024      forward simultaneously with the dynamicaly model.
1025      + Implemented so far:
1026        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1027        - I/O and checkpointing
1028        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1029      + Not implemented so far:
1030        - KPP
1031        - OBCS
1032      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1033        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1034        line in data.pkg.
1035      + This package is disabled by default since it increases storage.
1036    
1037    
1038    o testscript: added -cleanup option
1039    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1040                 b) enable to filter 2D fields.
1041    
1042    checkpoint44e_pre,post
1043    o re-wrote convective adjustment to use pre-calculated weights
1044      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1045      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1046      Original calls to convect() still in place.
1047    
1048    chkpt44d_pre,post
1049    o added missing EXCLUDE_MONITOR flags
1050    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1051      (incompatible typ in MIN/MAX expressions caused problems
1052      on IBM SP3)
1053    o in genmake added variable MAKEDEPEND
1054      plus resetting for case SunOS
1055    o added timer_stats.c routine for IBM SP3
1056    o removed variables in dynamics
1057    !!! I forgot to create tag chkpt44d_pre !!!
1058    !!! But chkpt44d_pre = chkpt44c_post    !!!
1059    
1060    o real fresh water flux implemented with non-linear free-surface.
1061    
1062    chkpt44c_pre,post
1063    o few fix (mask in shap_s2, EmPmR in external_field_load,
1064      USE_NATURAL_BCS in solve_for_P);
1065    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1066    
1067    checkpoint44b_pre/_post
1068    o merge of relevant stuff from the ecco-branch:
1069      - genmake: removed $S64 overwrite for case SunOS
1070      - pkg/exf: update and corrections for field swapping and obcs
1071      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1072                  harmonized between ECCO and MITgcm
1073      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1074                      updated checkpointing_lev... lists for obcs
1075      - model/src: minor changes in forward_step, plot_field
1076                   added directive for divided adjoint in the_main_loop
1077      - pkg/mdsio: added mdsio_gl_slice
1078    
1079    o check parameters & config (chkpt44a_pre,post)
1080    o OBC and NonLin_FrSurf.
1081    
1082    checkpoint44
1083    o fix bug in mom_vi_del2uv
1084    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1085    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1086    o update AIM experiments (NCEP input files)
1087    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1088    o added some stuff for AD
1089    
1090    checkpoint43
1091    o added two new advection tests
1092    o added global 4x4 degree ocean test
1093    o added test of H&S94 with free surface on cube
1094    o some final mods for gradient check, adjoint,...
1095    
1096    checkpoint42
1097      Fixed AD-related problems:
1098    o Store directives up-to-date with re-arranged Adams-Bashforth
1099      (mainly thermodynamics.F)
1100    o New store directives for multi-dim. advection schemes
1101      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1102      * new common block and key passkey
1103      (mainly gad_advection.F)
1104    o Modified store directives for split of dynamics/thermodynamics
1105      for the case ALLOW_KPP
1106    o Cleaned argument list for timestep_tracer.F
1107    
1108    checkpoint41
1109    o re-formatted/added comments in prologues of key subroutines
1110      to work with protex
1111    
1112    checkpoint40
1113    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1114    o added FLT (floats) package from Arne along with demo. experiment
1115    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1116      implementation of forward-in-time forcing terms
1117    o more mods for non-linear free-surface including new variable
1118    o modified multi-dim method to work on cube
1119    o bug fix in KPP (from DM)
1120    
1121    checkpoint40pre9
1122    o added DST advection schemes
1123    o fix MPI bug on SGI's
1124    o modifications for non-linear free-surface
1125    o fixed conditionals for fixed flow/passive tracer only mode
1126    o added tension/strain form of stress tensor
1127    o changes to commenting of arguments for TAF/TAMC
1128    o added/updated many matlab scripts
1129    o added multi-dimensional advection method for tracers
1130      
1131    checkpoint40pre8
1132    o new package rw/
1133      Added method for dumping intermediate local arrays:
1134      mdsio_writetile - same as mdsio_writefield except works from inside
1135                        bi,bj loop
1136      mdsio_writelocal - same as mdsio_writetile except works for local
1137                         arrays
1138      write_local_r? - higher-level wrapper for mdsio_writelocal
1139      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1140      Example given at end of mom_vecinv.F that dumps some local arrays.
1141    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1142      control flux-form versus vector invariant code.
1143      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1144      or genmake -DISABLE ...
1145    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1146      (additional storing is now needed for case vecinv;
1147      currently nothing implemented to switch this storing off
1148      in case fluxform is used since no CPP flag available).
1149    
1150    checkpoint40pre7
1151    o bug fix in dynamics.F
1152      calc_viscosity called before k=1,Nr loop.
1153    o added some #ifdef's ALLOW_PASSIVE_TRACER
1154    o cleaned initialisations in ctrl_map_ini
1155      related to TAF
1156    
1157    checkpoint40pre6
1158    o split dynamics into thermodynamics & dynamics
1159    o corresponding split of calc_diffusivity into
1160      calc_diffusivity, calc_viscosity
1161      (kpp_calc_diff, kpp_calc_visc).
1162    o Added diffkr, kapgm to control variables
1163    o bug fix in gmredi_slope_limit for ldd97
1164    
1165    checkpoint40pre5
1166    o proper initialization of Adams-Bashforth time stepping
1167      + uses forward step for very first step of model (iter=0)
1168    o re-generated *all* output since almost all output is modified by this
1169      change (sorry but we've been putting this one off for about 2 years)
1170      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1171        *not* regenerated since they are already out of date and I don't
1172        want to create the impression that they are suddenly working.
1173    o removed KAP stuff for DEC's
1174    o modified/added many .cvsignore files in */code and */input
1175    o added new expt "solid-body.cs-32x32x1"
1176      + this uses an alternative form of ini_curvilinear_grid.F which
1177        is not necessarily any better than the current one...
1178    
1179    checkpoint40pre4
1180    o added re-initialisations of utrans,vtrans,rtrans in
1181      calc_common_factors which are crucial for TAF.
1182    o extended iMin,jMin range for calc_common_factors,
1183      calc_diffusivity
1184    o added option ALLOW_PASSIVE_TRACER
1185    o a few minor updates and fixes
1186    
1187    checkpoint40pre3
1188    o created calc_gtr1.F for gad package
1189    o split the_main_loop and re-introduced forward_step
1190    o some recomputations of nIter0 for TAMC
1191    
1192    checkpoint40pre2
1193    o Updated to latest branch of AJA, JMC
1194    o Added gradient check package
1195    o Added routines for passive tracer handling
1196    o Added carbon sequestration sensitivity experiment
1197    
1198    checkpoint39
1199     o Modifications and fixes to support TAMC
1200       (mainly missing or wrong directives)
1201     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1202       in addummy_in_stepping
1203     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1204     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1205     o Included following packages:
1206       cal: calendar
1207       exf: external forcing
1208       ecco: essential routines to control use of cal, exf
1209             (NB: this is not the full ECCO environment)
1210     o disabled some packages by default in genmake
1211    
1212    checkpoint38
1213     o see notes_c37_adj.txt
1214     o corrected wrong layer index in external_forcing_t
1215     o replaced the_main_loop/forward_step by the_main_loop
1216     o removed forceoutput from write_state
1217       (replaced criteria for initial/final state)
1218     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1219    
1220    checkpoint37
1221     o mdsio.F routine split and packaged in pkg/mdsio
1222       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1223        used unless genmake -disable=mdsio)
1224     o allow a more precise surface-geopotential gradient for the atmosphere
1225       taking into account the change in space of Alpha (=1/rho) at the surface.
1226     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1227       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1228     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1229       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1230       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1231     o Time-Average diagnostics defined as a pseudo package "timeave".
1232     o pickup files : old pickup (before c35) did not work with new code (c35
1233       and after) unless activating 2 commented lines in initialise-varia.
1234     o Non-Hydrostatic pickup file Pb fixed.
1235     o bug with Rigid-lid version (since c35) fixed.  
1236    
1237    checkpoint36
1238     o implement Crank-Nickelson barotropic time-stepping
1239     o recover Time-Average diagnostics
1240     o fix Pb in checkpoint (PR#19)
1241     o AIM become a standard package ; clean unused CPP_kees
1242    
1243    checkpoint35
1244     o subtantial rewrite of dynamics.f
1245     o allows staggered time-stepping
1246     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1247     o added bottom drag (linear + quadratic)
1248    
1249    checkpoint34
1250     o Modified exchange routines for correct reverse simulation.
1251     o Added verification output to comply with bug fix in impldiff.F
1252       as of c33 (exp2, natl_box).
1253     o Corrected store directives in dynamics.F
1254     o Corrected array boundaries in impldiff.F
1255     o Corrected array dimensions in gmredi.
1256       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1257     o Added routine GLOBAL_SUM_INT to global_sum.F
1258     o Added mdsio_gl.F for ECCO purposes.
1259    
1260    checkpoint33
1261     o Fixed bug in lower BC in impldiff.F
1262     o Fixed confusion about units of forcing arrays in FFIELDS.h
1263       namely Fu,Fv,Qnet,Qsw,EmPmR:
1264       - Removed verification/natl_box/code/external_fields_scale.F
1265         (did not differ from that in model/src)
1266       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1267         (see FFIELDS.h for description)
1268       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1269         kpp_calc.F and kpp_transport_t.F
1270       - Removed model/src/external_fields_scale.F and calls to it
1271       - verification/natl_box uses flux data with "atmospheric" sign so
1272         a special version of external_fields_load.F is used to
1273         change the data as it's read in. This way, the arrays
1274         have the right units and signs at all times tha a user could
1275         possibly use them.
1276     o Corrected genmake to delete a temporary file during configuration
1277    
1278    checkpoint32
1279     o Scaling of forcing fields moved from external_forcing.F to
1280       external_fields_scale.F, called directly after loading fields.
1281     o Surface relaxation terms added to surface tendency fields in
1282       extra subroutine.
1283     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1284       fields.
1285     o Changes in GMRedi to comply with packaging structure.
1286     o Modifications and bug fixes in KPP package.
1287     o Verification experiment for KPP added (verification/nat_box/)
1288    
1289    checkpoint31
1290     o Packages interface brought in line with defined standard
1291       -> new routines packages_...F
1292       -> changes in initialise_fixed.F, initialise_varia.F
1293       -> enables initialisation interface for ECCO package
1294     o Rescaling of external forcing fields immediately after read
1295       (removed from external_forcing.F)
1296       -> new: surface_fields_scale.F
1297       -> affects ini_foorcing.F, external_fields_load.F
1298     o Computation of surface tendencies before tendency updates.
1299       -> new: external_forcing_surf.F
1300     o Change of variable names useGMRedi, useKPP, useECCO
1301     o Further changes in dynamics.F, impldiff.F for TAMC
1302     o Tested for experiments 0, 2, 4.
1303       - not yet tested for GMRedi.
1304       - not yet tested for KPP.
1305    
1306    checkpoint30
1307     o Updates for OBCs
1308     o New experiment for test OBCs (internal_wave)
1309     o New output.txt in verification/exp4/results/
1310     o Updates for KPP: calculation of viscosity corrected, new variables
1311       kpp_dumpFreq and kpp_taveFreq
1312     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1313       and entry for T90 in genmake
1314    
1315    checkpoint29
1316     o packaged KPP and GM/Redi
1317    
1318    checkpoint28
1319     o Corrected initialization of hFacMin for difference vertical coordinates
1320     o Modified calculation of partial cell thickness to more robust algorithm
1321     o config_summary.F: replaced write_1D_... by write_0D_...
1322       read_write.F: added subroutines write_0D_...
1323     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1324       included some initialisations required for TAMC.
1325     o routine calc_isoslopes: modified sqrt computation to make it
1326       differentiable for zero argument.
1327     o routines dynamics, impldiff:
1328       included store directives and tape key computations required for TAMC.
1329     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1330    
1331    checkpoint27
1332     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1333       formulation works properly with variable resolution.
1334     o restructured the calling tree between the_model_main() and dynamics()
1335     o split initialise() into initialise_fixed() and initialise_varia()
1336     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1337       in new routine ini_psurf()
1338    
1339    checkpoint26
1340     o moved some #ifdef in optional routines to encompass everything
1341       except the argument declarations. This was using up some memory.
1342     o fixed macros like _ADT to work with both versions of Linux cpp
1343     o cleaned up some unused and uninitialized variables
1344       (helps when debugging with strict compile options)
1345     o split up CPP_EEOPTIONS.h into options and macros
1346       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1347     o patch for 2 processor JAM mode
1348    
1349    checkpoint25
1350     o updates for OBCs and NH
1351     o dramatically reduced memory usage
1352     o added "JAM" routines for use on Artic network
1353     o parameterization of convection by implicit vertical diffusion
1354     o added a diagnostic of convective index
1355     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1356       (this is was partly for OBCs and NH but also in anticipation of
1357        an explicit free-surface option)
1358     o initial state input files for U and V
1359    
1360    checkpoint24
1361     o Removed some spurious "REAL"s
1362     o Updated KPP to latest version from JPL
1363     o Added a COS(latitude) in horizontal viscosity
1364    
1365    checkpoint23
1366     o Added del^4 diffusion for salt and temperature
1367     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1368    
1369    checkpoint22
1370     o Made many small changes: implicit none, format(i5), etc...
1371     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1372    
1373    checkpoint21
1374     o Introduced new I/O package that supports direct-access records (mdsio.F)
1375     o Split-up mid-level I/O routines
1376     o Updated input data for experiments 0,1,2,4 and 5
1377     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1378    
1379    checkpoint20
1380     o Tidied up open-boundaries some more
1381     o Added non-hydrostatic code
1382     o Fixed some input data
1383     o Modified MPI start-up to work in "coupled" context.
1384    
1385    checkpoint19
1386     o Tidied up directory structure for verification experiments.
1387     o Added new code for open boundaries.
1388     o Corrected advective terms near boundaries.
1389     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1390     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1391     o Split default parameters out of ini_parms.F into set_defaults.F.
1392    
1393    checkpoint18
1394     o Further changes for optional code generation with
1395       CPP - ugh!
1396    
1397  checkpoint17  checkpoint17
1398   o Beginning to incorporating modularity   o Beginning to incorporating modularity
1399     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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