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revision 1.13 by cnh, Wed Sep 9 15:24:19 1998 UTC revision 1.214 by heimbach, Tue Nov 25 19:06:08 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    o Removed all CPP options for cal package.
15      cal has no more CPP options.
16    
17    checkpoint52b_post
18    o new version: "thsice" of thermodynamic sea-ice pkg:
19     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
20     - modify fluxes but do not change theta directly;
21     - light cleaning of bulk_force pkg (still needed with thsice).
22     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
23       + output_thsice.txt to test thsice & bulk_force pkgs.
24    o put back grid & coriolis monitor output.
25    checkpoint52b_pre
26    
27    o call "do_the_model_io" at the beginning (=> dump initial state)
28    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
29    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
30      (need info on NUMBER_OF_PTRACERS)
31    o missing PTRACERS headers in some routines
32    o default tamc.h in pkg/autodiff supposed to crash
33      to ensure proper customization
34    
35    checkpoint52a_post
36    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
37      - moved surfaceTendencyTice from pkg/seaice to main code
38      - subroutine FREEZE_SURFACE now limits only surface temperature
39        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
40        => new output.txt for global_ocean.cs32x15 & global_with_exf
41      - keep the old version of FREEZE for backward compatibility;
42        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
43      - corresponding modifs for TAF directives
44    o added surface flux output variables to TIMEAVE_STATVARS
45    o time-averaged output for pkg/ptracers
46    o fix problem with ECCO-related divided adjoint
47      snapshot file was missing some ad-variables,
48      but no warning issued by TAF
49    
50    checkpoint52a_pre
51    o some bug fixes for #undef REAL4_IS_SLOW
52    
53    checkpoint52 = ecco_c52_e35
54    o after testing adjoints of checkpoint51u_post
55    
56    checkpoint51u_post
57    o this is the post-merge tag of the ecco-branch
58      (needs another clean checkout and re-testing)
59    o various natl_box_adjoint configs and results
60      but no input fields
61    o obcs adjoint not yet merged!
62    o adding ECCO global 1x1 and 2x2 degree configs
63    o updated/extended some store directives for seaice
64    o pkg/ecco now containes ecco-specific part of cost function
65    o top level routines the_main_loop, forward_step
66      supersede those in model/src/
67      previous input data.cost now in data.ecco
68      (new namelist ecco_cost_nml)
69    o in ctrl/ cleaned some cross-dependencies and updated CPP options
70    
71    checkpoint51t_post
72    o this is the pre-merge tag of the ecco-branch
73    
74    checkpoint51s_post
75    o cleanup: removed various obsolete #define-s
76    o pkg/grdchk
77      - renamed 'ph-grd 3' to 'grad-res'
78      - merged from ecco-branch
79        (remaining bug fixes for obcs gradient checks)
80      - additional high-precision output for testreport
81        (grep for 'precision_grdchk_result')
82    
83    checkpoint51r_post
84    o cleaned up or removed CPP_OPTIONS.h files
85    o updated results for some of the tests to reflect the new
86      optfiles (-ieee: -O0 instead of -O3)
87    
88    checkpoint51q_post
89    o cd_code:
90      - moved cd_scheme.F -> cd_code_scheme.F
91      - separate read_checkpoint from cd_code_ini_vars.F
92      - separated cd_code part from write_checkpoint
93      - updated AD_SOURCE, generated .flow
94      - added CD_CODE_VARS.h to the_main_loop
95      - Moving cd_code specific store dir.s to pkg/cd_code
96    o ctrl package totally restructured
97      - pack/unpack now optional and decoupled from
98        xx_/adxx_ I/O
99      - ctrl_pack/unpack cleaned
100        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
101      - confined inclusion of AD_CONFIG.h to where necessary.
102    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
103    
104    checkpoint51p_post
105    o create initial cd_code package
106      - WARNING: the initialization of fields within packages
107        is broken because INI_FIELDS (where READ_CHECKPOINT is
108        called) is called *before* PACKAGES_INIT_VARIABLES.
109        This seems to be backwards since
110        1) its important to initially zero the entire field including
111           the "halo" region
112        2) zeroing needs to be done *before* reading pickup info
113           and the pickup call might or might not happen in any
114           particular run
115      - this needs an overhaul for R2
116    o cleanup verification/*/code/GMREDI_OPTIONS.h
117    o cleanup testreport
118    
119    checkpoint51o_post
120    o bringing AD-related verif's up to date with genmake2
121      - carbon/
122      - global_ocean.90x40x15/
123      - hs.94.1x64x5/
124      - (front_relax/ )
125    o (more) consistent directory structure for AD-related verif.'s
126    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
127    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
128    o bug fix in find_alpha.F for MDJWF:
129      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
130        change rho -> rho-rhoConst
131      - replace call find_rho to find_rhonum
132    o initialisation of rFlx extended to full array (required by TAF)
133      and shifted to thermodynamics
134    o removed PTRACERS.h in ptracers routine
135    o added surfacetendencyPtr to S/R parameter list pracers_forcing
136    o Correcting initialisations for fVerU, fVerV.
137    o helping TAF to recognize dependency on kUp for
138      fVerU, fVerV
139    o Replacing delZ by delR in pkg/ctrl/
140    checkpoint51o_pre
141    
142    o undid all of cp51 pending some cleanups and discussion
143    o added the [#include "AD_CONFIG.h"] statement to all files that need
144       it for adjoint/tl #defines
145     o re-worked the build logic in genmake2 to support AD_CONFIG.h
146     o removed tools/genmake since it no longer works
147    
148    checkpoint51n_post
149    o modifications to make FREEZE flux visible to pkg/kpp
150      - moved surfaceTendencyTice from pkg/seaice to main code
151      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
152      - subroutine FREEZE now limits only surface temperature
153        (this means new output.txt for global_ocean.90x40x15,
154         global_ocean.cs32x15, and global_with_exf)
155    o added surface flux output variables to TIMEAVE_STATVARS
156    
157    checkpoint51n_pre
158    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
159    o added [#include "AD_CONFIG.h"] to all files that use the following
160      defines:
161      - ALLOW_ADJOINT_RUN
162      - ALLOW_TANGENTLINEAR_RUN
163      - ALLOW_ECCO_OPTIMIZATION
164    
165    checkpoint51m_post
166    o incorporating changes to get TAMC/TAF working in genmake2
167      - added new TAMC/TAF targets to the Makefile
168      - various cleanups related to package handling
169      - these changes should have no impact on the forward model
170    
171    checkpoint51l_post
172    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
173     - faster algorithm for cal_addtime.F
174     - higher precision arithmetic, where needed
175     - pkg/exf *startdate variables changed from calendar date to
176       model integration time
177    
178    checkpoint51l_pre
179    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
180    o enable to apply restoring on S & T only in a latitude band.
181    o update output (external_forcing_surf modif. change truncation errors)
182       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
183    
184    checkpoint51k_post
185    o change default to: useNHMTerms=.FALSE.
186     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
187       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
188     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
189        exp1, ideal_2D_oce
190     - change data file of oceanic exp (leave the results unchanged for now)
191       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
192    o set gravitySign automatically according to the vertical coordinate used
193      (and change sign: back to "logical" value: +1 when R increases downward)
194    o added an include barrier to the default CPP_OPTIONS.h and
195      removed the #include "PACKAGES_CONFIG.h" from it
196    o fix a bug in mom_fluxform (from chk51j_post)
197    
198    checkpoint51j_post
199    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
200    o adjusted some flow directives (dynamics, thermodynamics)
201    o added cubed-sphere case to test cost function
202    o heckpoint_lev?_directives.h now include
203      pkg-specific directives, whenever those are enabled.
204    o Moving pkg-specific flow directives to corresponding pkg
205      Moving pkg-specific differentiation list to corresponding pkg
206      Moving pkg-specific checkpoint-lev storing to corresponding pkg
207      ---> conventions are
208           - pkg_ad.flow
209           - pkg_ad_diff.list
210           - pkg_ad_check_lev?_dir.h
211    
212    checkpoint51i_post
213    o merge of the branch-genmake2
214      - knowingly breaks the older genmake
215      - automatic generation of all ALLOW_${PKG_NAME} defines
216      - new testreport supersedes older testscript
217    o large number of package inclusion and header cleanups
218    checkpoint51i_pre
219    
220    o new output for adjoin of global ocean vector invariant
221    o fix for checkpoint of thermodynamic seaice and bulk_force
222    o Steph gchem various cleanups
223    
224    checkpoint 51h_pre
225    o fixed some single quotes
226    o modify gchem pkg to be more versatile
227    o modifications to clean up dic pkg
228    o add pkg/cfc
229    
230    checkpoint51g_post
231    o provide links for ARPACK and ADM*TLM
232    o start removing verification/vero/
233    o update AD-related stuff
234      (in particular some IF-statements in model/src/ routines)
235    o adding to verification/global_ocean.90x40x15/ adjoint of
236      vector invariant setup
237    
238    checkpoint51f_post
239    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
240    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
241      of tracer Green's fucntions for ocean inversion project.
242    
243    checkpoint51f_pre
244    o Added on-the-fly spatial interpolation capability
245        "USE_EXF_INTERPOLATION" to pkg/exf.
246      - This is a temporary Cartesian-grid hack until
247        the super-duper ESMF coupler becomes available.
248      - See verification/global_with_exf/README for usage example.
249      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
250        flags and modified pkg/seaice accordingly.
251    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
252        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
253        non-local transport term.
254    
255    checkpoint51e_post
256    o pkg/mom_vecinv:
257      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
258      - add time-ave diagnostic of vorticity advection.
259    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
260    o atmospheric geopotential: - include water vapor effect;
261                                - use p^kappa in p* scaling.
262    o land pkg: read initial state from files.
263    o AIM : add stratospheric drag in the upper level
264    
265    checkpoint51d_post
266    o change function ILNBLNK (=> last non-blank char.) to return zero
267      (instead of the string length) when the string. char is empty
268    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
269    o modif's to restore TAMC compatibility
270      - avoid "_d" constructs in PARAMETER declarations
271      - avoid interrupting lines by comment lines
272    o Use cluster local disks for purely local I/O
273      vs. globally visible disks needed for ctrl stuff
274      (merged from ecco-branch)
275      - new active_file_loc... and mdsio_..._loc routines
276      - affected packages: autodiff, ctrl, grdchk, mdsio
277    
278    checkpoint51c_post
279    o introducing integer flag debugLevel
280      - debLevZero: suppress all output
281      - debLevA: standard
282      - debLevB: equivalent to current debugMode=.TRUE.
283    o introducing pathname variable mdsioLocalDir for mdsio
284      that can be specified at runtime
285      (relevant for cluster I/O to local disk)
286    `
287    >>>checkpoint51b_post
288    adjoint of ptracers
289    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
290    o extended state in checkpoint_lev?, etc.
291    o alternative ctrl/cost with tr1 or ptracer
292    o new comlev1_bibj_ptracers
293    o new ptracers.flow
294    o made ptracers_forcing same as external_forcing_s
295    o added verification for adjoint with ptracers
296      - adm. grdchk fail so far
297      - tlm. grdchk OK
298      - checked tapelev/comlev recomputations: OK
299    <<<checkpoint51b_pre
300    
301    checkpoint51a_post
302    o added code for biogeochemistry package
303      - new pkgs: dic, gchem
304      - new subroutine in ptracers
305    o modify code for biogeo packages
306      - in model/src and pkg/ptracers
307    
308    checkpoint51
309    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
310      - autodiff, ctrl, exf, grdchk, seaice
311      kept separate packages
312      - cost, ecco, obcs
313    o updating verification/internal_wave, verification/lab_sea
314      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
315    
316    checkpoint50i_post
317    o Preparing next differentiable checkpoint and sync
318      of MAIN vs. ecco-branch
319      - 1st step: this one is differentiable
320      - 2nd step: next(! not this) checkpoint will have updated packages
321                  from ecco-branch)
322    
323    checkpoint50h_post
324    o new package "land": provide surface BC for AIM.
325    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
326    o AIM: use true log-P extrapolation for near surface temp (= as in
327        F.Molteni paper) ; update aim.5l_cs output.
328    o New variable in PARM03 for more flexible pickups
329    o somewhat cleaned package initialisation sequence for
330      ctrl/ cost/ ecco/ in packages_... routines
331    
332    checkpoint50g_post
333    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
334      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
335      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
336        made the default because of faster convergence than ADI
337    
338    checkpoint50f_post
339    o exf totally restructured
340      - replaced all exf_set_ routines by one generic exf_set_gen.F
341        and made sure it's still differentiable
342      - split exf_getffields.F into new exf_bulkformulae.F
343      - exf_inscal_/exf_outscal_ suffixes consistent with field names
344      - updated adjoint/makefile and relevant verif. accordingly
345    
346    checkpoint50f_pre
347     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
348          + change Evap over land. (update aim.5l_cs output)
349     o added missing .cvsignores and made uniform across expts
350     o changed configuration of tidal_basin_2d expt
351     o added pkg/debug functions for tracing code in fatal crashes
352     o tidied pkg/monitor to use MONITOR_OPTIONS.h
353     o new fn in pkg/monitor to stop model if solution grows too big
354     o removed lots of single quotes from comments
355    
356    checkpoint50e_post
357    o make KPP work with PTRACERS
358     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
359       nearly a copy of kpp_transport_s
360     - there is no analogue to SurfaceTendencyS, so I have to use
361       gPtr(of the surface layer) instead
362    o add a new platform SunFire+mpi (SunFire 15000) to genmake
363    checkpoint50e_pre
364    
365    checkpoint50d_post
366    o change kpp output from multiple-record state files to single-record state
367      files analogous to write_state.F
368    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
369      analogous to the cg2d-related output.
370    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
371      so that writing to internal file fn (with length 512) fails.
372    checkpoint50d_pre
373    
374    checkpoint50c_post
375    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
376    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
377    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
378    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
379    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
380    
381    checkpoint50c_pre
382    Merging from release1_p13:
383    o bug fix for pkg/seaice dynamic solver
384    o Added SEAICE_initialHEFF to pkg/seaice
385    
386    checkpoint50b_post
387    o store u*,v* in gU,V instead of in guNm1,gvNm1
388    o in order to put the momForcing out of the Adams-Bashforth:
389      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
390      to timestep.F
391    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
392    o re-generate output for highly sensitive test-exp:
393       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
394    
395    checkpoint50b_pre
396    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
397    o corrected CPP option mismatch in exf_Bulk... functions for case
398      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
399    
400    checkpoint50a_post
401    o Bug fix for merging between c50 and KPP.
402      ikey was passed from thermodynamics to kpp_calc via
403      common block rather than being recomputed in kpp_calc,
404      in contradiction with new key itdkey.
405      New key ikppkey created, and tamc.h headers updated.
406    
407    checkpoint50
408    - 2nd step of merge with ecco-branch:
409      merge changes in ecco-branch back into main trunk
410    - bug fix in find_alpha
411    - more storing in gmredi_calc_tensor.F, kpp_routines.F
412    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
413    - merged some sliced AD support routines
414    
415    checkpoint49
416    merged from ecco-branch:
417    o exf:
418      - Enable initialisation of forcing fields to constant
419        (runtime) values.
420      - in exf_getffields.F
421        Reduce i-/j-loop to interior domain, discarding overlaps.
422        That also fixes wrong TAF-key computations for key_1, key_2
423        with bulf formulae.
424      - exf_init.F modify #ifdef for exf_init_evap
425      - exf_getffieldrec.F, ctrl_getrec.F
426        The following INT-usages are not safe:
427          fldsecs  = int(fldsecs/fldperiod)*fldperiod
428          fldcount = int(fldsecs/fldperiod) + 1
429        and were modified.
430    o autodiff: checkpoint_lev...
431      - updated storing for bulk formulae (some arrays were missing)
432      - added state for seaice package
433      - synchronized with main branch
434    o DIVA:
435      Modif.s in
436      - the_main_loop.F
437      - the_model_main.F
438      and added cost_final_restore.F cost_final_store.F
439      o With these changes, it is possible to fully separate
440        the first forward run to compute the cost function (mdthe_main_loop)
441        and adjoint runs over individual DIVA intervals (adthe_main_loop)
442        into separate model executions.
443        This enables better tuning of DIVA to given queue sizes.
444      o Loss of cost function value in consecutive DIVA runs is
445        fixed by storing to 'costfinal' file.
446      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
447        beginning/end of adjoint integration is accounted for.
448      The current changes apply to TAF-1.4.26.
449      TAF has one remaining bug, requiring one manual change
450      (see MITgcm manual).
451    o cal: synchronized between MAIN and ecco-branch
452    
453    checkpoint48i_post
454    o Changes to restore differentiability of code w.r.t. previous tag
455      (mostly adding new routines to make list and replacing
456      pressure by totPhiHyd).
457    o Updated and merged grdchk package
458      - has both ADM and TLM checks
459      - works for single- and multi-proc.
460      - output cleaned
461      - worked successfully for parallel DIVA
462    o genmake:
463      - Adding -platform=SP4
464      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
465    o Modif. for DIVA:
466      ctrl_unpack should not be called in intermediate DIVA interval.
467      (similar thing would apply for active files such as
468      tbar, sbar, psbar, which should not be reinitialised;
469      only relevant for ecco-branch)
470    
471    checkpoint48h_post
472    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
473    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
474    o Added SEAICE_initialHEFF to pkg/seaice
475    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
476    
477    checkpoint48g_post
478    --- EOS:
479    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
480      store total Potential in totPhyHyd for diagnostics & EOS.
481    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
482    --- Pressure/geopotential gradient:
483    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
484    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
485      ( changes results of global_ocean_pressure )
486    o NLFS + z-coord.: add eta*Rho' contribution.
487    o accurate phiHyd when using interface-W at the middle between 2 centers
488     ( changes results of ideal_2D_oce )
489    o includes r* 2nd term in potential gradient.
490    
491    checkpoint48f_post
492    Merging from release1_p12:
493    o Modifications for using pkg/exf with pkg/seaice
494      - improved description of the various forcing configurations
495      - added basic radiation bulk formulae to pkg/exf
496      - units/sign fix for evap computation in exf_getffields.F
497      - updated verification/global_with_exf/results/output.txt
498    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
499      (SBO) core products, including oceanic mass, center-of-mass,
500      angular, and bottom pressure (see pkg/sbo/README.sbo).
501    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
502      to avoid negative values in shallow regions.
503      - updated verification/natl_box/results/output.txt
504      - updated verification/lab_sea/results/output.txt
505    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
506    o Added useSingleCpuIO option (see PARAMS.h).
507    o Updated useSingleCpuIO option in mdsio_writefield.F to
508      work with multi-field files, e.g., for single-file pickup.
509    o pkg/seaice:
510      - bug fix in growth.F: QNET for no shortwave case
511      - added HeffFile for specifying initial sea-ice thickness
512      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
513    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
514      kpp_transport_t.F, forward_step.F, and the_main_loop.F
515    o pkg/seaice:
516      - adjoint-friendly modifications
517      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
518    
519    checkpoint48e_post
520    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
521    o dynamics: change definition of computational domain & adapt mom_fluxform
522      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
523    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
524        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
525        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
526        global_ocean.90x40x15 global_with_exf global_ocean_pressure
527        inverted_barometer solid-body.cs-32x32x1
528      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
529    
530    checkpoint48d_post
531    o in preparation for r*:
532     a) use pre-computed gradient of hydrostatic potential:
533        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
534     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
535        => affects results of glob_oce_pressure (different truncation error)  
536      update output.txt of ideal_2D_oce & global_ocean_pressure
537    
538    checkpoint48d_pre
539    o in preparation for r*:
540      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
541      pass the 2 comp. of the grad. as arguments to momentum S/R.
542      but for the moment, only used if it does not change the results.
543    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
544    
545    checkpoint48c_post
546    Modifications in treatment of initial flux forcing controls
547    to avoid extra storing of flux fields.
548    
549    checkpoint48c_pre
550    o Added tidal_basin_2d experiment (currently 1D!)
551    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
552    
553    checkpoint48b_post
554    o r* coordinate added in #ifdef NONLIN_FRSURF block.
555     (modification to pressure gradient not yet implemented)
556    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
557      (for U & V) that are used for vertical advection of momentum.
558    
559    checkpoint48a_post
560    o In preparation for r*, use temp. array to compute vertical transport
561       in flux-form momentum pkg. => change results of few test-exp.
562      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
563                        lab_sea, natl_box & plume_on_slope
564    
565    checkpoint48
566    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
567    
568    checkpoint47j_post
569    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
570    o moved adexch from forward_step to addummy_in_stepping
571    o added exch in ctrl_map_...
572    o aveFreq.=0. at end of cost_final to avoid overwrite in
573      reverse checkpointing loop
574    o Yet more changes in gmredi:
575      * adgmredi_calc_tensor
576        avoiding all recomputation of gmredi_slope_limit
577      * adgmredi_x/y/rtransport
578        added flag for excessive storing to avoid recomp. of
579        u/v/rtans, dTdx/y/z
580        -> this is not really necessary and very memory-consuming
581      * adgmredi_slope_psi:
582        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
583      * gmredi_slope_limit
584        re-activated full calculation of taperfct for case 'ac02'
585    o updating verification/ adjoints of carbon, global_ocean.90x40x15
586    
587    checkpoint47i_post
588    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
589    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
590      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
591    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
592    o gmredi: fix few bugs.
593    
594    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
595    This will be a good checkpoint to plug into the ecco-branch.
596    o few modif.'s to get latest version adjointed
597      (mainly kick out code in ini_linear_phisurf)
598    o modif's to run adjoint with exactConserv
599    o case GM_BOLUS_ADVEC should be cleaned
600      S/R gmredi_slope_psi should be cleaned
601    o verification/carbon now has exactConserv=.TRUE.
602    
603    checkpoint47g_post
604    o time-average AIM output: becomes independent from statvars time-average
605      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
606    o After TAF bug fix:
607      Tested adjoint of gmredi package.
608      Tests were done with checkpoint47 rather than with latest
609      checkpoint47f_post since the latter is broken for the adjoint
610      verification/carbon/ contains both ADM and TLM gradient checks.
611    Here they are, before they get changed/lost/stolen.
612    Mostly modif.'s to fix numerical sensitivities.
613    Gradient checks OK for
614    - GM_taper_scheme:
615      * clipping
616      * ac02
617      * linear
618      * glw91
619      * dm95
620      * ldd97
621    - GMREDI_OPTIONS:
622      * GM_VISBECK_VARIABLE_K
623      * GM_NON_UNITY_DIAGONAL
624      * GM_EXTRA_DIAGONAL
625      * GM_BOLUS_ADVEC
626    in conjunction with data.gmredi parameters to be checked in
627    in a few minutes under verification/carbon/code/
628    
629    checkpoint47f_post
630    Merging from release1_p10:
631    o modifications for using pkg/exf with pkg/seaice
632      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
633        and SEAICE_EXTERNAL_FLUXES
634      - pkg/exf CPP options EXF_READ_EVAP and
635        EXF_NO_BULK_COMPUTATIONS
636      - usage examples are Experiments 8 and 9 in
637        verification/lab_sea/README
638      - verification/lab_sea default experiment now uses
639        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
640    
641    checkpoint47e_post
642    o created a tag prior to creating a branch
643    
644    checkpoint47d_post
645    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
646      at the bottom boundary had an erroneous half slip boundary condition
647    o added bottom drag and no slip boundary condition capabilities to
648      oceanic pressure coordinates code
649    o added new verification experiment global_ocean_pressure, this experiment is
650      also described in the tutorial section of the manual
651    checkpoint47d_pre
652    
653    checkpoint47c_post
654    o Added a verification experiment for a global cubed-sphere ocean run
655      -  verification/global_ocean.cubed32x32x30
656      -  uses pkg/therm_seaice and pkg/bulk_forcing
657    
658    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
659    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
660      when using P-coordinate; only implemented for atmospheric config.
661    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
662      NOTES: requires option NONLIN_FRSURF to be "#define".
663    o update advect_xz/results/output.txt (left from checkpoint44g_post)
664    
665    checkpoint47b_post
666    Merging from release1_p9:
667    o pkg/seaice
668      - removed GOTO's and added taf directives
669      - double precision constants to reduce the g77 (Linux)
670        to F77 (SGI) differences reported in release1_p8
671    o tools/genmake
672      - added SGI options
673    o verification/testscript
674      - updated to that of checkpoint47a_post
675    o verification/global_ocean.90x40x15/input/eedata
676      - modified for SGI f77 compatibility
677    o verification/lab_sea
678      - added description of sea-ice model
679      - added missing matlab routines
680      - added test of thermodynamics parallelization
681    
682    checkpoint47a_post
683    o new pkg: aim_v23
684     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
685       for now, keep the same surface forcing as before.
686     - Part-Cell implemented into AIM; check that Heat & Water are conserved
687     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
688     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
689    o add diagnostic of surface correction term in monitor output
690    
691    o bulk_force and therm_seaice
692    - Two packages:  bulk_force (Bulk forcing)
693      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
694    - Earlier integration from Stephaine Dutkiewicz
695      and Patrick Heimbach.
696    - Two ifdef statements for compile time,
697       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
698    
699    checkpoint47
700    differentiable version of checkpoint46n_post
701    o bug fix in quasihydrostaticterms
702    o * "clean" adjoint code (in terms of extensive recomputations)
703        can now be obtained for all GMREDI options (i.e. for
704        - GM_VISBECK_VARIABLE_K
705        - GM_NON_UNITY_DIAGONAL
706        - GM_EXTRA_DIAGONAL
707        - GM_BOLUS_ADVEC )
708      * However, wrong gradient check problem remains unsolved.
709      * New CPP options have been introduced for different
710        tapering schemes
711    o external_fields_load now part of differentiation list
712    o pressure needs multiple storing;
713      would be nice to have store_pressure at beginning or
714      end of forward_step, e.g. by having phiHyd global (5-dim.)
715      (NB: pressure is needed for certain cases in find_rho,
716      which is also invoked through convective_adjustment).
717    o recomputations in find_rho for cases
718     'JMD95'/'UNESCO' or 'MDJWF' are OK.
719    o #define ATMOSPHERIC_LOADING should be differentiable
720    o ini_forcing shifted to begining of initialise_varia
721    o Incorporating QNVS line search routines into MITgcm
722      (this is separate code, and therefore not under pkg)
723      lsopt/, optim/
724    o Updated verification/carbon/
725      - #define GM_VISBECK_VARIABLE_K
726      - GM_taper_scheme    = 'ldd97'    
727    
728    checkpoint46n_post
729    Merging from release1_p8:
730    o verification/natl_box:
731      updating new external_fields_load routine
732    o New package: pkg/seaice
733      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
734      The sea-ice code is based on Hibler (1979-1980).
735      Two sea-ice dynamic solvers, ADI and LSR, are included.
736      In addition to computing prognostic sea-ice variables and diagnosing
737      the forcing/external data fields that drive the ocean model,
738      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
739      The implied surface heat flux is then stored in variable
740      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
741      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
742      non-local transport term.  Because this call precedes model
743      thermodynamics, temperature under sea-ice may not be "exactly" at
744      the freezing point by the time theta is dumped or time-averaged.
745      N.B.: fairly large differences in accuracy occur across
746            different platforms/compilers; comparison between
747            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
748            generated output gives:
749       T           S           U           V
750      C D M    c        m  s        m  s        m  s        m  s
751      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
752      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
753      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
754    
755      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
756    o GAD:
757      - generated new common blocks to account for call of
758        same gad routines with differing traceridentities
759        (needed to modify tracerIdentity indices in GAD.h)
760      - generated separate common blocks for case useCubedSphereExchange
761        (Department of Futurology)
762      - parameter lists to gmredi_?transport: added tracerIdentity
763      - added new key indices to tamc.h
764    o external_fields_load:
765      - added this routine to TAF list
766      - needed to make some common blocks global and additional storing
767        along the same lines as exf package (checkpoint_lev?_directives.h)
768    o exf:
769      updated external forcing package
770      - bug fixes carried over from ecco-branch
771        (missing OBCS_OPTIONS.h in two routines)
772      - enable easy to use "no forcing".
773      - added exf I/O for atmospheric loading
774      - added exf I/O for runoff data
775      - transfered scaling between exf <-> MITgcm to exf namelist
776    o Adding new verification experiment global_with_exf.
777      This verification experiment is almost identical to the
778      global_ocean.90x40x15 experiment, except that it uses
779      the exf (and cal) package instead of the
780      external_fields_load routine (cf README file).
781    
782    checkpoint46m_post
783    o modified testscript to return -- when there are no lines of "%MON" output
784    o added new flag "quasiHydrostatic" for QH mode
785      and new routine quasihydrostaticterms()
786    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
787      New routine: mom_u_coriolis_nh()
788    o fixed sign of non-hydrostatic metric terms in u and v equations.
789      Depend on correct sign of gravitySign.
790    o added work.pc* to .cvsignore in aim directories using ifc
791    o introduced flag for controllin non-hydrostatic metric terms
792    o removed gravitySign from PARM04
793    o switched to g77/ifc from pgf77 in aim experiments
794    
795    checkpoint46l_post
796    o made convective adjustment work with pressure coordinates:
797     - changed the direction of k-loop in convective_adjustment.F for the
798       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
799     - adjusted the reference pressure k-index in convective_adjustment.F
800     - adjusted the convection condition in convect.F (in analogy to
801       calc_ivdc.F)
802     - convective_adjustment no longer computes anything on the halos
803     - removed the warnings about negative salinity from find_rho.F and
804       find_alpha.F; instead the new routine look_for_neg_salinity, called
805       at the beginning of find_rho, find_alpha, and find_beta, does a
806       check of the entire slice, if CPP-option
807       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
808    checkpoint46l_pre
809    
810    checkpoint46k_post
811    o fixed the verification/global_ocean.90x40x15 experiment:
812     - new bathymetry (the world according to A., JMC, and M.)
813     - new initial fields and forcing fields (*.bin files)
814     - new POLY3.COEFFS (for the next release one should switch to a full
815       equation of state: JMD95P or MDJWF)
816     - fixed several errors and redundancies in the data file
817     - experiment uses looped cells
818     - added matlab directory with diagnostic scripts for plotting of output
819    
820    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
821     - read AIM physics parameters from a file (data.aimphys)
822     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
823    
824    checkpoint46j_post
825    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
826    o move wVel computation at the end of the time step, in S/R integr_continuity
827    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
828    o update timeave pkg for wVel diagnostic.
829    checkpoint46j_pre
830    
831    checkpoint46i_post
832    o Clean up AIM package (and keep the results unchanged):
833      include CPP_OPTION and use IMPLICT NONE in all routines ;
834      declare all the variables _RL ; use _d 0 for all numerical constants.
835      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
836    
837    checkpoint46h_post
838    o cleaned up the use of rhoNil and rhoConst.
839      - rhoNil should only appear in the LINEAR equation of state, everywhere
840        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
841        and the dynamical equations are all divided by rhoConst
842    o introduced new parameter rhoConstFresh, a reference density of fresh
843      water, to remove the fresh water flux's dependence on rhoNil. The default
844      value is 999.8 kg/m^3
845    o cleanup up external_forcing.F and external_forcing_surf.F
846      - can now be used by both OCEANIC and OCEANICP
847    checkpoint46h_pre
848    
849     Added code to convert surface volume flux (fresh water) into
850     a mass flux when using P coordinates in the ocean (OCEANICP).
851     Note: It assumes you have set rho0=rhoConst=density of fresh water.
852    
853    checkpoint46g_post
854    o Include a new diagnostic variable phiHydLow for the ocean model
855      - in z-coordinates, it is the bottom pressure anomaly
856      - in p-coordinates, it is the sea surface elevation
857      - in both cases, these variable have global drift, reflecting the mass
858        drift in z-coordinates and the volume drift in p-coordinates
859      - included time averaging for phiHydLow, be aware of the drift!
860    o depth-dependent computation of Bo_surf for pressure coordinates
861      in the ocean (buoyancyRelation='OCEANICP')
862      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
863        Theta, Salinity, and Pressure in the parameter list. This routine is
864        presently contained in find_rho.F. This routine does not give the
865        correct density for 'POLY3', which would be a z-dependent reference
866        density.
867    o cleaned up find_rho
868      - removed obsolete 'eqn' from the parameter list.
869    o added two new verification experiments: gop and goz
870      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
871    checkpoint46g_pre
872    
873    checkpoint46f_post
874    o Enable tangent linear (forward mode) gradient checks:
875      - extended active file handling to g_... files
876      - added TANGENT_SIMULATION to theSimulationMode
877      - extended grdchk package accordingly
878    o added tangent linear setup in verification/carbon/code_ftl
879    o added adjoint setup in verification/front_relax/code_ad
880    
881    checkpoint46e_post
882    o Added new equation of state -> MDJWF
883      - EOS of McDougall et al., 2002, JAOT, submitted
884      - caveat: the equation of state is only valid for a smaller (more
885        realistic?) range of values than JMD95P/Z and UNESCO
886      - added masks to the calculation of pressure in store_pressure
887      - added more check values for density in check_eos (ini_eos.F), some of
888        the old check values are out of the range of the MDJWF-eos, so don't
889        expect perfect matches for those
890    checkpoint46e_pre
891    
892    checkpoint46d_post
893    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
894      'OCEANICP', also initialised field pressure correctly in ini_eos in the
895      case of pressure coordinates. eosType='JMD95Z' in
896      combination with buoyancyRelation='OCEANICP' now causes an error.
897    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
898      in find_alpha/beta.
899    checkpoint46d_pre
900    
901    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
902      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
903    
904    checkpoint46c_post
905    o Changes necessary for ocean in p-coordinates
906     -  Added new buoyancy relation = 'OCEANICP'
907     -  Added new parameters = gravitySign (this used to be contained inside
908        the factor dRdZ which I added when we first switched to R coordinates).
909     X GM/Redi is not compatible (yet)
910     X bottom drag and no-slip need to be debugged.
911    checkpoint46c_pre
912    
913    checkpoint46b_post
914    o Added new equation of state -> JMD95Z and JMD95P
915      - EOS of Jackett and McDougall, 1995, JAOT
916      - moved all EOS parameters into EOS.h
917      - new routines ini_eos.F, store_pressure.F
918    o Added UNESCO EOS, but not recommended because it requires
919      in-situ temperature (see JMD95)
920    o Modified formatting for knudsen2.f in utils/knudsen2 and added
921      unesco.f to be used with POLY3
922    checkpoint46b_pre
923    
924    checkpoint46a_post
925    o Added (atmospheric) pressure loading
926      - new field in FFIELDS.h, etc...
927      - new cpp flag ATMOSPHERIC_LOADING
928    o Changed hFacC to _hFacC in calc_phi_hyd.F
929    o Added SHORTWAVE_HEATING to some files for consistency
930    checkpoint46a_pre
931    
932    checkpoint46
933    further merges from release1_p5
934    o new ctrl package
935      - adopted from ECCO environment to enable optimization
936      - added Eliassen Palm fluxes to controls
937    o added Eliassen Palm flux controls to gradient check package
938    o cost package
939      - Compatible with new ctrl package
940      - added Eliassen Palm cost hooks
941      - modif's of existing cost functions
942    o Adjoint-related bug fixes in kpp:
943      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
944      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
945    o autodiff package
946      - flow directives:
947        + new for S/R do_the_model_io
948        + enhanced for S/R checkpoint
949        + new gmredi.flow
950      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
951        disable adcommon.h/g_common.h by default.
952      - fixed problem for adjoint of global_max
953    o modified verification/carbon/
954    o New setup for adjoint of global_ocean
955    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
956    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
957    o incorporated hooks for sponge layer code (external_forcing.F)
958    
959    checkpoint45d_post
960    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
961    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
962      (affects plume_on_slope "cg2d" output)
963    o add new parameter deltaTfreesurf for free-surface time stepping
964    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
965    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
966    o change phiMin in exp1 (to agree with documentation)
967    o add new flags:
968     - T,S forcing inside/outside Adams-Bashforth
969     - turn off temp,salt advection and/or forcing
970     - for each tracer, define internal flag for multiDimAdvection & A-B
971    o monitor: change definition of KE to check conservation of Energy
972    
973    checkpoint45c_post
974    o Removed f90 comments ("!")
975    o Modified initialisations to enable exf package for MITgcm
976      (without invoking ECCO_PACKAGE).
977    o modifications to gradient check package (Martin Losch)
978      - enable centered differences
979      - modified format of standard output
980    
981    checkpoint45b_post
982    o cleaned exchange calls in cg2d
983    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
984    o included CPP option SINGLE_LAYER_MODE in thermodynamics
985      to configure barotropic setup (Martin Losch)
986    o moved some initialisations within bi,bj loop in dynamics
987      (TAF flow dependency)
988    o in initialise_varia, moved call packages_init_variables
989      before convective_adjustment_init
990      (corresponding adjustment of TAF tape initialisation).
991    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
992    
993    checkpoint45a_post
994    o compute Rho over the whole domain (extend iMin,jMin indices)
995    o specific exchange for X-slice domain (case Ny=1)
996    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
997    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
998    
999    checkpoint44h_post = checkpoint45
1000    o Fix to restore differentiability:
1001      place at which packages_init_variables is called in
1002      initialise_varia is crucial for reverse control flow.
1003    o modifications in GMRedi to enable stable adjoint
1004      (corresponding modif's in thermodynamics, dynamics)
1005    o added missing hook for sponge layer code in external_forcing
1006    o modified test cost functions
1007    o storing in gad_advection (plus removal of write(0,*)!
1008    o missing headers TR1.h added in convective_adjustment routines
1009    o errorMessageUnit set non-equal zero in eeboot
1010      (conflict on some platforms, e.g. IBM SP3)
1011    o modified carbon verif.
1012    
1013    checkpoint44h_pre
1014    o vertical grid option: allow to put the Interface at the middle between
1015      2 cell-centers ; replace delZ in pkg/kpp by drF.
1016    o GM Advective form: Tracers are advected using the residual transport (=
1017      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1018    
1019    checkpoint44g_post
1020    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1021      results) ; ifdef missing in thermodynamics.F
1022    
1023    checkpoint44f_pre,checkpoint44f_post
1024    o added PTRACERS package
1025      This allows an arbitrary number of passive tracers to be integrated
1026      forward simultaneously with the dynamicaly model.
1027      + Implemented so far:
1028        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1029        - I/O and checkpointing
1030        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1031      + Not implemented so far:
1032        - KPP
1033        - OBCS
1034      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1035        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1036        line in data.pkg.
1037      + This package is disabled by default since it increases storage.
1038    
1039    
1040    o testscript: added -cleanup option
1041    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1042                 b) enable to filter 2D fields.
1043    
1044    checkpoint44e_pre,post
1045    o re-wrote convective adjustment to use pre-calculated weights
1046      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1047      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1048      Original calls to convect() still in place.
1049    
1050    chkpt44d_pre,post
1051    o added missing EXCLUDE_MONITOR flags
1052    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1053      (incompatible typ in MIN/MAX expressions caused problems
1054      on IBM SP3)
1055    o in genmake added variable MAKEDEPEND
1056      plus resetting for case SunOS
1057    o added timer_stats.c routine for IBM SP3
1058    o removed variables in dynamics
1059    !!! I forgot to create tag chkpt44d_pre !!!
1060    !!! But chkpt44d_pre = chkpt44c_post    !!!
1061    
1062    o real fresh water flux implemented with non-linear free-surface.
1063    
1064    chkpt44c_pre,post
1065    o few fix (mask in shap_s2, EmPmR in external_field_load,
1066      USE_NATURAL_BCS in solve_for_P);
1067    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1068    
1069    checkpoint44b_pre/_post
1070    o merge of relevant stuff from the ecco-branch:
1071      - genmake: removed $S64 overwrite for case SunOS
1072      - pkg/exf: update and corrections for field swapping and obcs
1073      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1074                  harmonized between ECCO and MITgcm
1075      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1076                      updated checkpointing_lev... lists for obcs
1077      - model/src: minor changes in forward_step, plot_field
1078                   added directive for divided adjoint in the_main_loop
1079      - pkg/mdsio: added mdsio_gl_slice
1080    
1081    o check parameters & config (chkpt44a_pre,post)
1082    o OBC and NonLin_FrSurf.
1083    
1084    checkpoint44
1085    o fix bug in mom_vi_del2uv
1086    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1087    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1088    o update AIM experiments (NCEP input files)
1089    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1090    o added some stuff for AD
1091    
1092    checkpoint43
1093    o added two new advection tests
1094    o added global 4x4 degree ocean test
1095    o added test of H&S94 with free surface on cube
1096    o some final mods for gradient check, adjoint,...
1097    
1098    checkpoint42
1099      Fixed AD-related problems:
1100    o Store directives up-to-date with re-arranged Adams-Bashforth
1101      (mainly thermodynamics.F)
1102    o New store directives for multi-dim. advection schemes
1103      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1104      * new common block and key passkey
1105      (mainly gad_advection.F)
1106    o Modified store directives for split of dynamics/thermodynamics
1107      for the case ALLOW_KPP
1108    o Cleaned argument list for timestep_tracer.F
1109    
1110    checkpoint41
1111    o re-formatted/added comments in prologues of key subroutines
1112      to work with protex
1113    
1114    checkpoint40
1115    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1116    o added FLT (floats) package from Arne along with demo. experiment
1117    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1118      implementation of forward-in-time forcing terms
1119    o more mods for non-linear free-surface including new variable
1120    o modified multi-dim method to work on cube
1121    o bug fix in KPP (from DM)
1122    
1123    checkpoint40pre9
1124    o added DST advection schemes
1125    o fix MPI bug on SGI's
1126    o modifications for non-linear free-surface
1127    o fixed conditionals for fixed flow/passive tracer only mode
1128    o added tension/strain form of stress tensor
1129    o changes to commenting of arguments for TAF/TAMC
1130    o added/updated many matlab scripts
1131    o added multi-dimensional advection method for tracers
1132      
1133    checkpoint40pre8
1134    o new package rw/
1135      Added method for dumping intermediate local arrays:
1136      mdsio_writetile - same as mdsio_writefield except works from inside
1137                        bi,bj loop
1138      mdsio_writelocal - same as mdsio_writetile except works for local
1139                         arrays
1140      write_local_r? - higher-level wrapper for mdsio_writelocal
1141      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1142      Example given at end of mom_vecinv.F that dumps some local arrays.
1143    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1144      control flux-form versus vector invariant code.
1145      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1146      or genmake -DISABLE ...
1147    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1148      (additional storing is now needed for case vecinv;
1149      currently nothing implemented to switch this storing off
1150      in case fluxform is used since no CPP flag available).
1151    
1152    checkpoint40pre7
1153    o bug fix in dynamics.F
1154      calc_viscosity called before k=1,Nr loop.
1155    o added some #ifdef's ALLOW_PASSIVE_TRACER
1156    o cleaned initialisations in ctrl_map_ini
1157      related to TAF
1158    
1159    checkpoint40pre6
1160    o split dynamics into thermodynamics & dynamics
1161    o corresponding split of calc_diffusivity into
1162      calc_diffusivity, calc_viscosity
1163      (kpp_calc_diff, kpp_calc_visc).
1164    o Added diffkr, kapgm to control variables
1165    o bug fix in gmredi_slope_limit for ldd97
1166    
1167    checkpoint40pre5
1168    o proper initialization of Adams-Bashforth time stepping
1169      + uses forward step for very first step of model (iter=0)
1170    o re-generated *all* output since almost all output is modified by this
1171      change (sorry but we've been putting this one off for about 2 years)
1172      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1173        *not* regenerated since they are already out of date and I don't
1174        want to create the impression that they are suddenly working.
1175    o removed KAP stuff for DEC's
1176    o modified/added many .cvsignore files in */code and */input
1177    o added new expt "solid-body.cs-32x32x1"
1178      + this uses an alternative form of ini_curvilinear_grid.F which
1179        is not necessarily any better than the current one...
1180    
1181    checkpoint40pre4
1182    o added re-initialisations of utrans,vtrans,rtrans in
1183      calc_common_factors which are crucial for TAF.
1184    o extended iMin,jMin range for calc_common_factors,
1185      calc_diffusivity
1186    o added option ALLOW_PASSIVE_TRACER
1187    o a few minor updates and fixes
1188    
1189    checkpoint40pre3
1190    o created calc_gtr1.F for gad package
1191    o split the_main_loop and re-introduced forward_step
1192    o some recomputations of nIter0 for TAMC
1193    
1194    checkpoint40pre2
1195    o Updated to latest branch of AJA, JMC
1196    o Added gradient check package
1197    o Added routines for passive tracer handling
1198    o Added carbon sequestration sensitivity experiment
1199    
1200    checkpoint39
1201     o Modifications and fixes to support TAMC
1202       (mainly missing or wrong directives)
1203     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1204       in addummy_in_stepping
1205     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1206     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1207     o Included following packages:
1208       cal: calendar
1209       exf: external forcing
1210       ecco: essential routines to control use of cal, exf
1211             (NB: this is not the full ECCO environment)
1212     o disabled some packages by default in genmake
1213    
1214    checkpoint38
1215     o see notes_c37_adj.txt
1216     o corrected wrong layer index in external_forcing_t
1217     o replaced the_main_loop/forward_step by the_main_loop
1218     o removed forceoutput from write_state
1219       (replaced criteria for initial/final state)
1220     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1221    
1222    checkpoint37
1223     o mdsio.F routine split and packaged in pkg/mdsio
1224       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1225        used unless genmake -disable=mdsio)
1226     o allow a more precise surface-geopotential gradient for the atmosphere
1227       taking into account the change in space of Alpha (=1/rho) at the surface.
1228     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1229       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1230     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1231       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1232       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1233     o Time-Average diagnostics defined as a pseudo package "timeave".
1234     o pickup files : old pickup (before c35) did not work with new code (c35
1235       and after) unless activating 2 commented lines in initialise-varia.
1236     o Non-Hydrostatic pickup file Pb fixed.
1237     o bug with Rigid-lid version (since c35) fixed.  
1238    
1239    checkpoint36
1240     o implement Crank-Nickelson barotropic time-stepping
1241     o recover Time-Average diagnostics
1242     o fix Pb in checkpoint (PR#19)
1243     o AIM become a standard package ; clean unused CPP_kees
1244    
1245    checkpoint35
1246     o subtantial rewrite of dynamics.f
1247     o allows staggered time-stepping
1248     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1249     o added bottom drag (linear + quadratic)
1250    
1251    checkpoint34
1252     o Modified exchange routines for correct reverse simulation.
1253     o Added verification output to comply with bug fix in impldiff.F
1254       as of c33 (exp2, natl_box).
1255     o Corrected store directives in dynamics.F
1256     o Corrected array boundaries in impldiff.F
1257     o Corrected array dimensions in gmredi.
1258       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1259     o Added routine GLOBAL_SUM_INT to global_sum.F
1260     o Added mdsio_gl.F for ECCO purposes.
1261    
1262    checkpoint33
1263     o Fixed bug in lower BC in impldiff.F
1264     o Fixed confusion about units of forcing arrays in FFIELDS.h
1265       namely Fu,Fv,Qnet,Qsw,EmPmR:
1266       - Removed verification/natl_box/code/external_fields_scale.F
1267         (did not differ from that in model/src)
1268       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1269         (see FFIELDS.h for description)
1270       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1271         kpp_calc.F and kpp_transport_t.F
1272       - Removed model/src/external_fields_scale.F and calls to it
1273       - verification/natl_box uses flux data with "atmospheric" sign so
1274         a special version of external_fields_load.F is used to
1275         change the data as it's read in. This way, the arrays
1276         have the right units and signs at all times tha a user could
1277         possibly use them.
1278     o Corrected genmake to delete a temporary file during configuration
1279    
1280    checkpoint32
1281     o Scaling of forcing fields moved from external_forcing.F to
1282       external_fields_scale.F, called directly after loading fields.
1283     o Surface relaxation terms added to surface tendency fields in
1284       extra subroutine.
1285     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1286       fields.
1287     o Changes in GMRedi to comply with packaging structure.
1288     o Modifications and bug fixes in KPP package.
1289     o Verification experiment for KPP added (verification/nat_box/)
1290    
1291    checkpoint31
1292     o Packages interface brought in line with defined standard
1293       -> new routines packages_...F
1294       -> changes in initialise_fixed.F, initialise_varia.F
1295       -> enables initialisation interface for ECCO package
1296     o Rescaling of external forcing fields immediately after read
1297       (removed from external_forcing.F)
1298       -> new: surface_fields_scale.F
1299       -> affects ini_foorcing.F, external_fields_load.F
1300     o Computation of surface tendencies before tendency updates.
1301       -> new: external_forcing_surf.F
1302     o Change of variable names useGMRedi, useKPP, useECCO
1303     o Further changes in dynamics.F, impldiff.F for TAMC
1304     o Tested for experiments 0, 2, 4.
1305       - not yet tested for GMRedi.
1306       - not yet tested for KPP.
1307    
1308    checkpoint30
1309     o Updates for OBCs
1310     o New experiment for test OBCs (internal_wave)
1311     o New output.txt in verification/exp4/results/
1312     o Updates for KPP: calculation of viscosity corrected, new variables
1313       kpp_dumpFreq and kpp_taveFreq
1314     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1315       and entry for T90 in genmake
1316    
1317    checkpoint29
1318     o packaged KPP and GM/Redi
1319    
1320    checkpoint28
1321     o Corrected initialization of hFacMin for difference vertical coordinates
1322     o Modified calculation of partial cell thickness to more robust algorithm
1323     o config_summary.F: replaced write_1D_... by write_0D_...
1324       read_write.F: added subroutines write_0D_...
1325     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1326       included some initialisations required for TAMC.
1327     o routine calc_isoslopes: modified sqrt computation to make it
1328       differentiable for zero argument.
1329     o routines dynamics, impldiff:
1330       included store directives and tape key computations required for TAMC.
1331     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1332    
1333    checkpoint27
1334     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1335       formulation works properly with variable resolution.
1336     o restructured the calling tree between the_model_main() and dynamics()
1337     o split initialise() into initialise_fixed() and initialise_varia()
1338     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1339       in new routine ini_psurf()
1340    
1341    checkpoint26
1342     o moved some #ifdef in optional routines to encompass everything
1343       except the argument declarations. This was using up some memory.
1344     o fixed macros like _ADT to work with both versions of Linux cpp
1345     o cleaned up some unused and uninitialized variables
1346       (helps when debugging with strict compile options)
1347     o split up CPP_EEOPTIONS.h into options and macros
1348       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1349     o patch for 2 processor JAM mode
1350    
1351    checkpoint25
1352     o updates for OBCs and NH
1353     o dramatically reduced memory usage
1354     o added "JAM" routines for use on Artic network
1355     o parameterization of convection by implicit vertical diffusion
1356     o added a diagnostic of convective index
1357     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1358       (this is was partly for OBCs and NH but also in anticipation of
1359        an explicit free-surface option)
1360     o initial state input files for U and V
1361    
1362    checkpoint24
1363     o Removed some spurious "REAL"s
1364     o Updated KPP to latest version from JPL
1365     o Added a COS(latitude) in horizontal viscosity
1366    
1367    checkpoint23
1368     o Added del^4 diffusion for salt and temperature
1369     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1370    
1371    checkpoint22
1372     o Made many small changes: implicit none, format(i5), etc...
1373     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1374    
1375    checkpoint21
1376     o Introduced new I/O package that supports direct-access records (mdsio.F)
1377     o Split-up mid-level I/O routines
1378     o Updated input data for experiments 0,1,2,4 and 5
1379     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1380    
1381    checkpoint20
1382     o Tidied up open-boundaries some more
1383     o Added non-hydrostatic code
1384     o Fixed some input data
1385     o Modified MPI start-up to work in "coupled" context.
1386    
1387    checkpoint19
1388     o Tidied up directory structure for verification experiments.
1389     o Added new code for open boundaries.
1390     o Corrected advective terms near boundaries.
1391     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1392     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1393     o Split default parameters out of ini_parms.F into set_defaults.F.
1394    
1395    checkpoint18
1396     o Further changes for optional code generation with
1397       CPP - ugh!
1398    
1399    checkpoint17
1400     o Beginning to incorporating modularity
1401       for supporting atmos. and ocean configs.
1402     o Small changes for TAMC complinace
1403     o New ultra simple test case. Barotropic box
1404       configuration "exp0".
1405    
1406    checkpoint16
1407     o Minor changes to exchange routines to support
1408       accumulation in reverse mode. Adjoint of an
1409       assignment is an addition.
1410     o Changes to support compilation by TAMC (LR(1)
1411       syntax) and by g77 under Linux ( 72 character
1412       limit ).
1413    
1414    checkpoint15
1415     Rewrote exchange routines to allow
1416     o General tile <-> tile connectivity.
1417     o TAMC reverse mode flag ( is this really needed? )
1418     o Variable width overlap and exchange region widths.
1419     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1420       shmput/shmget, VIA, SYSV shmem and every other cool
1421       communication method.
1422    
1423  checkpoint14  checkpoint14
1424   Consistent isomorphism chages made. These allow dynamical core   Consistent isomorphism chages made. These allow dynamical core
1425   to support both pressure and meters as a vertical coordinate.   to support both pressure and meters as a vertical coordinate.

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