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revision 1.5 by cnh, Mon Jun 15 05:13:55 1998 UTC revision 1.212 by jmc, Sun Nov 23 04:28:12 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint52b_post
7    o new version: "thsice" of thermodynamic sea-ice pkg:
8     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
9     - modify fluxes but do not change theta directly;
10     - light cleaning of bulk_force pkg (still needed with thsice).
11     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
12       + output_thsice.txt to test thsice & bulk_force pkgs.
13    o put back grid & coriolis monitor output.
14    checkpoint52b_pre
15    
16    o call "do_the_model_io" at the beginning (=> dump initial state)
17    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
18    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
19      (need info on NUMBER_OF_PTRACERS)
20    o missing PTRACERS headers in some routines
21    o default tamc.h in pkg/autodiff supposed to crash
22      to ensure proper customization
23    
24    checkpoint52a_post
25    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
26      - moved surfaceTendencyTice from pkg/seaice to main code
27      - subroutine FREEZE_SURFACE now limits only surface temperature
28        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
29        => new output.txt for global_ocean.cs32x15 & global_with_exf
30      - keep the old version of FREEZE for backward compatibility;
31        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
32      - corresponding modifs for TAF directives
33    o added surface flux output variables to TIMEAVE_STATVARS
34    o time-averaged output for pkg/ptracers
35    o fix problem with ECCO-related divided adjoint
36      snapshot file was missing some ad-variables,
37      but no warning issued by TAF
38    
39    checkpoint52a_pre
40    o some bug fixes for #undef REAL4_IS_SLOW
41    
42    checkpoint52 = ecco_c52_e35
43    o after testing adjoints of checkpoint51u_post
44    
45    checkpoint51u_post
46    o this is the post-merge tag of the ecco-branch
47      (needs another clean checkout and re-testing)
48    o various natl_box_adjoint configs and results
49      but no input fields
50    o obcs adjoint not yet merged!
51    o adding ECCO global 1x1 and 2x2 degree configs
52    o updated/extended some store directives for seaice
53    o pkg/ecco now containes ecco-specific part of cost function
54    o top level routines the_main_loop, forward_step
55      supersede those in model/src/
56      previous input data.cost now in data.ecco
57      (new namelist ecco_cost_nml)
58    o in ctrl/ cleaned some cross-dependencies and updated CPP options
59    
60    checkpoint51t_post
61    o this is the pre-merge tag of the ecco-branch
62    
63    checkpoint51s_post
64    o cleanup: removed various obsolete #define-s
65    o pkg/grdchk
66      - renamed 'ph-grd 3' to 'grad-res'
67      - merged from ecco-branch
68        (remaining bug fixes for obcs gradient checks)
69      - additional high-precision output for testreport
70        (grep for 'precision_grdchk_result')
71    
72    checkpoint51r_post
73    o cleaned up or removed CPP_OPTIONS.h files
74    o updated results for some of the tests to reflect the new
75      optfiles (-ieee: -O0 instead of -O3)
76    
77    checkpoint51q_post
78    o cd_code:
79      - moved cd_scheme.F -> cd_code_scheme.F
80      - separate read_checkpoint from cd_code_ini_vars.F
81      - separated cd_code part from write_checkpoint
82      - updated AD_SOURCE, generated .flow
83      - added CD_CODE_VARS.h to the_main_loop
84      - Moving cd_code specific store dir.s to pkg/cd_code
85    o ctrl package totally restructured
86      - pack/unpack now optional and decoupled from
87        xx_/adxx_ I/O
88      - ctrl_pack/unpack cleaned
89        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
90      - confined inclusion of AD_CONFIG.h to where necessary.
91    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
92    
93    checkpoint51p_post
94    o create initial cd_code package
95      - WARNING: the initialization of fields within packages
96        is broken because INI_FIELDS (where READ_CHECKPOINT is
97        called) is called *before* PACKAGES_INIT_VARIABLES.
98        This seems to be backwards since
99        1) its important to initially zero the entire field including
100           the "halo" region
101        2) zeroing needs to be done *before* reading pickup info
102           and the pickup call might or might not happen in any
103           particular run
104      - this needs an overhaul for R2
105    o cleanup verification/*/code/GMREDI_OPTIONS.h
106    o cleanup testreport
107    
108    checkpoint51o_post
109    o bringing AD-related verif's up to date with genmake2
110      - carbon/
111      - global_ocean.90x40x15/
112      - hs.94.1x64x5/
113      - (front_relax/ )
114    o (more) consistent directory structure for AD-related verif.'s
115    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
116    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
117    o bug fix in find_alpha.F for MDJWF:
118      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
119        change rho -> rho-rhoConst
120      - replace call find_rho to find_rhonum
121    o initialisation of rFlx extended to full array (required by TAF)
122      and shifted to thermodynamics
123    o removed PTRACERS.h in ptracers routine
124    o added surfacetendencyPtr to S/R parameter list pracers_forcing
125    o Correcting initialisations for fVerU, fVerV.
126    o helping TAF to recognize dependency on kUp for
127      fVerU, fVerV
128    o Replacing delZ by delR in pkg/ctrl/
129    checkpoint51o_pre
130    
131    o undid all of cp51 pending some cleanups and discussion
132    o added the [#include "AD_CONFIG.h"] statement to all files that need
133       it for adjoint/tl #defines
134     o re-worked the build logic in genmake2 to support AD_CONFIG.h
135     o removed tools/genmake since it no longer works
136    
137    checkpoint51n_post
138    o modifications to make FREEZE flux visible to pkg/kpp
139      - moved surfaceTendencyTice from pkg/seaice to main code
140      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
141      - subroutine FREEZE now limits only surface temperature
142        (this means new output.txt for global_ocean.90x40x15,
143         global_ocean.cs32x15, and global_with_exf)
144    o added surface flux output variables to TIMEAVE_STATVARS
145    
146    checkpoint51n_pre
147    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
148    o added [#include "AD_CONFIG.h"] to all files that use the following
149      defines:
150      - ALLOW_ADJOINT_RUN
151      - ALLOW_TANGENTLINEAR_RUN
152      - ALLOW_ECCO_OPTIMIZATION
153    
154    checkpoint51m_post
155    o incorporating changes to get TAMC/TAF working in genmake2
156      - added new TAMC/TAF targets to the Makefile
157      - various cleanups related to package handling
158      - these changes should have no impact on the forward model
159    
160    checkpoint51l_post
161    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
162     - faster algorithm for cal_addtime.F
163     - higher precision arithmetic, where needed
164     - pkg/exf *startdate variables changed from calendar date to
165       model integration time
166    
167    checkpoint51l_pre
168    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
169    o enable to apply restoring on S & T only in a latitude band.
170    o update output (external_forcing_surf modif. change truncation errors)
171       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
172    
173    checkpoint51k_post
174    o change default to: useNHMTerms=.FALSE.
175     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
176       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
177     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
178        exp1, ideal_2D_oce
179     - change data file of oceanic exp (leave the results unchanged for now)
180       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
181    o set gravitySign automatically according to the vertical coordinate used
182      (and change sign: back to "logical" value: +1 when R increases downward)
183    o added an include barrier to the default CPP_OPTIONS.h and
184      removed the #include "PACKAGES_CONFIG.h" from it
185    o fix a bug in mom_fluxform (from chk51j_post)
186    
187    checkpoint51j_post
188    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
189    o adjusted some flow directives (dynamics, thermodynamics)
190    o added cubed-sphere case to test cost function
191    o heckpoint_lev?_directives.h now include
192      pkg-specific directives, whenever those are enabled.
193    o Moving pkg-specific flow directives to corresponding pkg
194      Moving pkg-specific differentiation list to corresponding pkg
195      Moving pkg-specific checkpoint-lev storing to corresponding pkg
196      ---> conventions are
197           - pkg_ad.flow
198           - pkg_ad_diff.list
199           - pkg_ad_check_lev?_dir.h
200    
201    checkpoint51i_post
202    o merge of the branch-genmake2
203      - knowingly breaks the older genmake
204      - automatic generation of all ALLOW_${PKG_NAME} defines
205      - new testreport supersedes older testscript
206    o large number of package inclusion and header cleanups
207    checkpoint51i_pre
208    
209    o new output for adjoin of global ocean vector invariant
210    o fix for checkpoint of thermodynamic seaice and bulk_force
211    o Steph gchem various cleanups
212    
213    checkpoint 51h_pre
214    o fixed some single quotes
215    o modify gchem pkg to be more versatile
216    o modifications to clean up dic pkg
217    o add pkg/cfc
218    
219    checkpoint51g_post
220    o provide links for ARPACK and ADM*TLM
221    o start removing verification/vero/
222    o update AD-related stuff
223      (in particular some IF-statements in model/src/ routines)
224    o adding to verification/global_ocean.90x40x15/ adjoint of
225      vector invariant setup
226    
227    checkpoint51f_post
228    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
229    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
230      of tracer Green's fucntions for ocean inversion project.
231    
232    checkpoint51f_pre
233    o Added on-the-fly spatial interpolation capability
234        "USE_EXF_INTERPOLATION" to pkg/exf.
235      - This is a temporary Cartesian-grid hack until
236        the super-duper ESMF coupler becomes available.
237      - See verification/global_with_exf/README for usage example.
238      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
239        flags and modified pkg/seaice accordingly.
240    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
241        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
242        non-local transport term.
243    
244    checkpoint51e_post
245    o pkg/mom_vecinv:
246      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
247      - add time-ave diagnostic of vorticity advection.
248    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
249    o atmospheric geopotential: - include water vapor effect;
250                                - use p^kappa in p* scaling.
251    o land pkg: read initial state from files.
252    o AIM : add stratospheric drag in the upper level
253    
254    checkpoint51d_post
255    o change function ILNBLNK (=> last non-blank char.) to return zero
256      (instead of the string length) when the string. char is empty
257    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
258    o modif's to restore TAMC compatibility
259      - avoid "_d" constructs in PARAMETER declarations
260      - avoid interrupting lines by comment lines
261    o Use cluster local disks for purely local I/O
262      vs. globally visible disks needed for ctrl stuff
263      (merged from ecco-branch)
264      - new active_file_loc... and mdsio_..._loc routines
265      - affected packages: autodiff, ctrl, grdchk, mdsio
266    
267    checkpoint51c_post
268    o introducing integer flag debugLevel
269      - debLevZero: suppress all output
270      - debLevA: standard
271      - debLevB: equivalent to current debugMode=.TRUE.
272    o introducing pathname variable mdsioLocalDir for mdsio
273      that can be specified at runtime
274      (relevant for cluster I/O to local disk)
275    `
276    >>>checkpoint51b_post
277    adjoint of ptracers
278    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
279    o extended state in checkpoint_lev?, etc.
280    o alternative ctrl/cost with tr1 or ptracer
281    o new comlev1_bibj_ptracers
282    o new ptracers.flow
283    o made ptracers_forcing same as external_forcing_s
284    o added verification for adjoint with ptracers
285      - adm. grdchk fail so far
286      - tlm. grdchk OK
287      - checked tapelev/comlev recomputations: OK
288    <<<checkpoint51b_pre
289    
290    checkpoint51a_post
291    o added code for biogeochemistry package
292      - new pkgs: dic, gchem
293      - new subroutine in ptracers
294    o modify code for biogeo packages
295      - in model/src and pkg/ptracers
296    
297    checkpoint51
298    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
299      - autodiff, ctrl, exf, grdchk, seaice
300      kept separate packages
301      - cost, ecco, obcs
302    o updating verification/internal_wave, verification/lab_sea
303      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
304    
305    checkpoint50i_post
306    o Preparing next differentiable checkpoint and sync
307      of MAIN vs. ecco-branch
308      - 1st step: this one is differentiable
309      - 2nd step: next(! not this) checkpoint will have updated packages
310                  from ecco-branch)
311    
312    checkpoint50h_post
313    o new package "land": provide surface BC for AIM.
314    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
315    o AIM: use true log-P extrapolation for near surface temp (= as in
316        F.Molteni paper) ; update aim.5l_cs output.
317    o New variable in PARM03 for more flexible pickups
318    o somewhat cleaned package initialisation sequence for
319      ctrl/ cost/ ecco/ in packages_... routines
320    
321    checkpoint50g_post
322    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
323      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
324      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
325        made the default because of faster convergence than ADI
326    
327    checkpoint50f_post
328    o exf totally restructured
329      - replaced all exf_set_ routines by one generic exf_set_gen.F
330        and made sure it's still differentiable
331      - split exf_getffields.F into new exf_bulkformulae.F
332      - exf_inscal_/exf_outscal_ suffixes consistent with field names
333      - updated adjoint/makefile and relevant verif. accordingly
334    
335    checkpoint50f_pre
336     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
337          + change Evap over land. (update aim.5l_cs output)
338     o added missing .cvsignores and made uniform across expts
339     o changed configuration of tidal_basin_2d expt
340     o added pkg/debug functions for tracing code in fatal crashes
341     o tidied pkg/monitor to use MONITOR_OPTIONS.h
342     o new fn in pkg/monitor to stop model if solution grows too big
343     o removed lots of single quotes from comments
344    
345    checkpoint50e_post
346    o make KPP work with PTRACERS
347     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
348       nearly a copy of kpp_transport_s
349     - there is no analogue to SurfaceTendencyS, so I have to use
350       gPtr(of the surface layer) instead
351    o add a new platform SunFire+mpi (SunFire 15000) to genmake
352    checkpoint50e_pre
353    
354    checkpoint50d_post
355    o change kpp output from multiple-record state files to single-record state
356      files analogous to write_state.F
357    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
358      analogous to the cg2d-related output.
359    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
360      so that writing to internal file fn (with length 512) fails.
361    checkpoint50d_pre
362    
363    checkpoint50c_post
364    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
365    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
366    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
367    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
368    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
369    
370    checkpoint50c_pre
371    Merging from release1_p13:
372    o bug fix for pkg/seaice dynamic solver
373    o Added SEAICE_initialHEFF to pkg/seaice
374    
375    checkpoint50b_post
376    o store u*,v* in gU,V instead of in guNm1,gvNm1
377    o in order to put the momForcing out of the Adams-Bashforth:
378      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
379      to timestep.F
380    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
381    o re-generate output for highly sensitive test-exp:
382       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
383    
384    checkpoint50b_pre
385    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
386    o corrected CPP option mismatch in exf_Bulk... functions for case
387      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
388    
389    checkpoint50a_post
390    o Bug fix for merging between c50 and KPP.
391      ikey was passed from thermodynamics to kpp_calc via
392      common block rather than being recomputed in kpp_calc,
393      in contradiction with new key itdkey.
394      New key ikppkey created, and tamc.h headers updated.
395    
396    checkpoint50
397    - 2nd step of merge with ecco-branch:
398      merge changes in ecco-branch back into main trunk
399    - bug fix in find_alpha
400    - more storing in gmredi_calc_tensor.F, kpp_routines.F
401    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
402    - merged some sliced AD support routines
403    
404    checkpoint49
405    merged from ecco-branch:
406    o exf:
407      - Enable initialisation of forcing fields to constant
408        (runtime) values.
409      - in exf_getffields.F
410        Reduce i-/j-loop to interior domain, discarding overlaps.
411        That also fixes wrong TAF-key computations for key_1, key_2
412        with bulf formulae.
413      - exf_init.F modify #ifdef for exf_init_evap
414      - exf_getffieldrec.F, ctrl_getrec.F
415        The following INT-usages are not safe:
416          fldsecs  = int(fldsecs/fldperiod)*fldperiod
417          fldcount = int(fldsecs/fldperiod) + 1
418        and were modified.
419    o autodiff: checkpoint_lev...
420      - updated storing for bulk formulae (some arrays were missing)
421      - added state for seaice package
422      - synchronized with main branch
423    o DIVA:
424      Modif.s in
425      - the_main_loop.F
426      - the_model_main.F
427      and added cost_final_restore.F cost_final_store.F
428      o With these changes, it is possible to fully separate
429        the first forward run to compute the cost function (mdthe_main_loop)
430        and adjoint runs over individual DIVA intervals (adthe_main_loop)
431        into separate model executions.
432        This enables better tuning of DIVA to given queue sizes.
433      o Loss of cost function value in consecutive DIVA runs is
434        fixed by storing to 'costfinal' file.
435      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
436        beginning/end of adjoint integration is accounted for.
437      The current changes apply to TAF-1.4.26.
438      TAF has one remaining bug, requiring one manual change
439      (see MITgcm manual).
440    o cal: synchronized between MAIN and ecco-branch
441    
442    checkpoint48i_post
443    o Changes to restore differentiability of code w.r.t. previous tag
444      (mostly adding new routines to make list and replacing
445      pressure by totPhiHyd).
446    o Updated and merged grdchk package
447      - has both ADM and TLM checks
448      - works for single- and multi-proc.
449      - output cleaned
450      - worked successfully for parallel DIVA
451    o genmake:
452      - Adding -platform=SP4
453      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
454    o Modif. for DIVA:
455      ctrl_unpack should not be called in intermediate DIVA interval.
456      (similar thing would apply for active files such as
457      tbar, sbar, psbar, which should not be reinitialised;
458      only relevant for ecco-branch)
459    
460    checkpoint48h_post
461    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
462    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
463    o Added SEAICE_initialHEFF to pkg/seaice
464    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
465    
466    checkpoint48g_post
467    --- EOS:
468    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
469      store total Potential in totPhyHyd for diagnostics & EOS.
470    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
471    --- Pressure/geopotential gradient:
472    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
473    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
474      ( changes results of global_ocean_pressure )
475    o NLFS + z-coord.: add eta*Rho' contribution.
476    o accurate phiHyd when using interface-W at the middle between 2 centers
477     ( changes results of ideal_2D_oce )
478    o includes r* 2nd term in potential gradient.
479    
480    checkpoint48f_post
481    Merging from release1_p12:
482    o Modifications for using pkg/exf with pkg/seaice
483      - improved description of the various forcing configurations
484      - added basic radiation bulk formulae to pkg/exf
485      - units/sign fix for evap computation in exf_getffields.F
486      - updated verification/global_with_exf/results/output.txt
487    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
488      (SBO) core products, including oceanic mass, center-of-mass,
489      angular, and bottom pressure (see pkg/sbo/README.sbo).
490    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
491      to avoid negative values in shallow regions.
492      - updated verification/natl_box/results/output.txt
493      - updated verification/lab_sea/results/output.txt
494    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
495    o Added useSingleCpuIO option (see PARAMS.h).
496    o Updated useSingleCpuIO option in mdsio_writefield.F to
497      work with multi-field files, e.g., for single-file pickup.
498    o pkg/seaice:
499      - bug fix in growth.F: QNET for no shortwave case
500      - added HeffFile for specifying initial sea-ice thickness
501      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
502    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
503      kpp_transport_t.F, forward_step.F, and the_main_loop.F
504    o pkg/seaice:
505      - adjoint-friendly modifications
506      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
507    
508    checkpoint48e_post
509    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
510    o dynamics: change definition of computational domain & adapt mom_fluxform
511      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
512    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
513        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
514        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
515        global_ocean.90x40x15 global_with_exf global_ocean_pressure
516        inverted_barometer solid-body.cs-32x32x1
517      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
518    
519    checkpoint48d_post
520    o in preparation for r*:
521     a) use pre-computed gradient of hydrostatic potential:
522        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
523     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
524        => affects results of glob_oce_pressure (different truncation error)  
525      update output.txt of ideal_2D_oce & global_ocean_pressure
526    
527    checkpoint48d_pre
528    o in preparation for r*:
529      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
530      pass the 2 comp. of the grad. as arguments to momentum S/R.
531      but for the moment, only used if it does not change the results.
532    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
533    
534    checkpoint48c_post
535    Modifications in treatment of initial flux forcing controls
536    to avoid extra storing of flux fields.
537    
538    checkpoint48c_pre
539    o Added tidal_basin_2d experiment (currently 1D!)
540    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
541    
542    checkpoint48b_post
543    o r* coordinate added in #ifdef NONLIN_FRSURF block.
544     (modification to pressure gradient not yet implemented)
545    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
546      (for U & V) that are used for vertical advection of momentum.
547    
548    checkpoint48a_post
549    o In preparation for r*, use temp. array to compute vertical transport
550       in flux-form momentum pkg. => change results of few test-exp.
551      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
552                        lab_sea, natl_box & plume_on_slope
553    
554    checkpoint48
555    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
556    
557    checkpoint47j_post
558    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
559    o moved adexch from forward_step to addummy_in_stepping
560    o added exch in ctrl_map_...
561    o aveFreq.=0. at end of cost_final to avoid overwrite in
562      reverse checkpointing loop
563    o Yet more changes in gmredi:
564      * adgmredi_calc_tensor
565        avoiding all recomputation of gmredi_slope_limit
566      * adgmredi_x/y/rtransport
567        added flag for excessive storing to avoid recomp. of
568        u/v/rtans, dTdx/y/z
569        -> this is not really necessary and very memory-consuming
570      * adgmredi_slope_psi:
571        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
572      * gmredi_slope_limit
573        re-activated full calculation of taperfct for case 'ac02'
574    o updating verification/ adjoints of carbon, global_ocean.90x40x15
575    
576    checkpoint47i_post
577    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
578    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
579      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
580    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
581    o gmredi: fix few bugs.
582    
583    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
584    This will be a good checkpoint to plug into the ecco-branch.
585    o few modif.'s to get latest version adjointed
586      (mainly kick out code in ini_linear_phisurf)
587    o modif's to run adjoint with exactConserv
588    o case GM_BOLUS_ADVEC should be cleaned
589      S/R gmredi_slope_psi should be cleaned
590    o verification/carbon now has exactConserv=.TRUE.
591    
592    checkpoint47g_post
593    o time-average AIM output: becomes independent from statvars time-average
594      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
595    o After TAF bug fix:
596      Tested adjoint of gmredi package.
597      Tests were done with checkpoint47 rather than with latest
598      checkpoint47f_post since the latter is broken for the adjoint
599      verification/carbon/ contains both ADM and TLM gradient checks.
600    Here they are, before they get changed/lost/stolen.
601    Mostly modif.'s to fix numerical sensitivities.
602    Gradient checks OK for
603    - GM_taper_scheme:
604      * clipping
605      * ac02
606      * linear
607      * glw91
608      * dm95
609      * ldd97
610    - GMREDI_OPTIONS:
611      * GM_VISBECK_VARIABLE_K
612      * GM_NON_UNITY_DIAGONAL
613      * GM_EXTRA_DIAGONAL
614      * GM_BOLUS_ADVEC
615    in conjunction with data.gmredi parameters to be checked in
616    in a few minutes under verification/carbon/code/
617    
618    checkpoint47f_post
619    Merging from release1_p10:
620    o modifications for using pkg/exf with pkg/seaice
621      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
622        and SEAICE_EXTERNAL_FLUXES
623      - pkg/exf CPP options EXF_READ_EVAP and
624        EXF_NO_BULK_COMPUTATIONS
625      - usage examples are Experiments 8 and 9 in
626        verification/lab_sea/README
627      - verification/lab_sea default experiment now uses
628        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
629    
630    checkpoint47e_post
631    o created a tag prior to creating a branch
632    
633    checkpoint47d_post
634    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
635      at the bottom boundary had an erroneous half slip boundary condition
636    o added bottom drag and no slip boundary condition capabilities to
637      oceanic pressure coordinates code
638    o added new verification experiment global_ocean_pressure, this experiment is
639      also described in the tutorial section of the manual
640    checkpoint47d_pre
641    
642    checkpoint47c_post
643    o Added a verification experiment for a global cubed-sphere ocean run
644      -  verification/global_ocean.cubed32x32x30
645      -  uses pkg/therm_seaice and pkg/bulk_forcing
646    
647    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
648    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
649      when using P-coordinate; only implemented for atmospheric config.
650    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
651      NOTES: requires option NONLIN_FRSURF to be "#define".
652    o update advect_xz/results/output.txt (left from checkpoint44g_post)
653    
654    checkpoint47b_post
655    Merging from release1_p9:
656    o pkg/seaice
657      - removed GOTO's and added taf directives
658      - double precision constants to reduce the g77 (Linux)
659        to F77 (SGI) differences reported in release1_p8
660    o tools/genmake
661      - added SGI options
662    o verification/testscript
663      - updated to that of checkpoint47a_post
664    o verification/global_ocean.90x40x15/input/eedata
665      - modified for SGI f77 compatibility
666    o verification/lab_sea
667      - added description of sea-ice model
668      - added missing matlab routines
669      - added test of thermodynamics parallelization
670    
671    checkpoint47a_post
672    o new pkg: aim_v23
673     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
674       for now, keep the same surface forcing as before.
675     - Part-Cell implemented into AIM; check that Heat & Water are conserved
676     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
677     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
678    o add diagnostic of surface correction term in monitor output
679    
680    o bulk_force and therm_seaice
681    - Two packages:  bulk_force (Bulk forcing)
682      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
683    - Earlier integration from Stephaine Dutkiewicz
684      and Patrick Heimbach.
685    - Two ifdef statements for compile time,
686       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
687    
688    checkpoint47
689    differentiable version of checkpoint46n_post
690    o bug fix in quasihydrostaticterms
691    o * "clean" adjoint code (in terms of extensive recomputations)
692        can now be obtained for all GMREDI options (i.e. for
693        - GM_VISBECK_VARIABLE_K
694        - GM_NON_UNITY_DIAGONAL
695        - GM_EXTRA_DIAGONAL
696        - GM_BOLUS_ADVEC )
697      * However, wrong gradient check problem remains unsolved.
698      * New CPP options have been introduced for different
699        tapering schemes
700    o external_fields_load now part of differentiation list
701    o pressure needs multiple storing;
702      would be nice to have store_pressure at beginning or
703      end of forward_step, e.g. by having phiHyd global (5-dim.)
704      (NB: pressure is needed for certain cases in find_rho,
705      which is also invoked through convective_adjustment).
706    o recomputations in find_rho for cases
707     'JMD95'/'UNESCO' or 'MDJWF' are OK.
708    o #define ATMOSPHERIC_LOADING should be differentiable
709    o ini_forcing shifted to begining of initialise_varia
710    o Incorporating QNVS line search routines into MITgcm
711      (this is separate code, and therefore not under pkg)
712      lsopt/, optim/
713    o Updated verification/carbon/
714      - #define GM_VISBECK_VARIABLE_K
715      - GM_taper_scheme    = 'ldd97'    
716    
717    checkpoint46n_post
718    Merging from release1_p8:
719    o verification/natl_box:
720      updating new external_fields_load routine
721    o New package: pkg/seaice
722      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
723      The sea-ice code is based on Hibler (1979-1980).
724      Two sea-ice dynamic solvers, ADI and LSR, are included.
725      In addition to computing prognostic sea-ice variables and diagnosing
726      the forcing/external data fields that drive the ocean model,
727      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
728      The implied surface heat flux is then stored in variable
729      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
730      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
731      non-local transport term.  Because this call precedes model
732      thermodynamics, temperature under sea-ice may not be "exactly" at
733      the freezing point by the time theta is dumped or time-averaged.
734      N.B.: fairly large differences in accuracy occur across
735            different platforms/compilers; comparison between
736            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
737            generated output gives:
738       T           S           U           V
739      C D M    c        m  s        m  s        m  s        m  s
740      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
741      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
742      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
743    
744      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
745    o GAD:
746      - generated new common blocks to account for call of
747        same gad routines with differing traceridentities
748        (needed to modify tracerIdentity indices in GAD.h)
749      - generated separate common blocks for case useCubedSphereExchange
750        (Department of Futurology)
751      - parameter lists to gmredi_?transport: added tracerIdentity
752      - added new key indices to tamc.h
753    o external_fields_load:
754      - added this routine to TAF list
755      - needed to make some common blocks global and additional storing
756        along the same lines as exf package (checkpoint_lev?_directives.h)
757    o exf:
758      updated external forcing package
759      - bug fixes carried over from ecco-branch
760        (missing OBCS_OPTIONS.h in two routines)
761      - enable easy to use "no forcing".
762      - added exf I/O for atmospheric loading
763      - added exf I/O for runoff data
764      - transfered scaling between exf <-> MITgcm to exf namelist
765    o Adding new verification experiment global_with_exf.
766      This verification experiment is almost identical to the
767      global_ocean.90x40x15 experiment, except that it uses
768      the exf (and cal) package instead of the
769      external_fields_load routine (cf README file).
770    
771    checkpoint46m_post
772    o modified testscript to return -- when there are no lines of "%MON" output
773    o added new flag "quasiHydrostatic" for QH mode
774      and new routine quasihydrostaticterms()
775    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
776      New routine: mom_u_coriolis_nh()
777    o fixed sign of non-hydrostatic metric terms in u and v equations.
778      Depend on correct sign of gravitySign.
779    o added work.pc* to .cvsignore in aim directories using ifc
780    o introduced flag for controllin non-hydrostatic metric terms
781    o removed gravitySign from PARM04
782    o switched to g77/ifc from pgf77 in aim experiments
783    
784    checkpoint46l_post
785    o made convective adjustment work with pressure coordinates:
786     - changed the direction of k-loop in convective_adjustment.F for the
787       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
788     - adjusted the reference pressure k-index in convective_adjustment.F
789     - adjusted the convection condition in convect.F (in analogy to
790       calc_ivdc.F)
791     - convective_adjustment no longer computes anything on the halos
792     - removed the warnings about negative salinity from find_rho.F and
793       find_alpha.F; instead the new routine look_for_neg_salinity, called
794       at the beginning of find_rho, find_alpha, and find_beta, does a
795       check of the entire slice, if CPP-option
796       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
797    checkpoint46l_pre
798    
799    checkpoint46k_post
800    o fixed the verification/global_ocean.90x40x15 experiment:
801     - new bathymetry (the world according to A., JMC, and M.)
802     - new initial fields and forcing fields (*.bin files)
803     - new POLY3.COEFFS (for the next release one should switch to a full
804       equation of state: JMD95P or MDJWF)
805     - fixed several errors and redundancies in the data file
806     - experiment uses looped cells
807     - added matlab directory with diagnostic scripts for plotting of output
808    
809    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
810     - read AIM physics parameters from a file (data.aimphys)
811     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
812    
813    checkpoint46j_post
814    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
815    o move wVel computation at the end of the time step, in S/R integr_continuity
816    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
817    o update timeave pkg for wVel diagnostic.
818    checkpoint46j_pre
819    
820    checkpoint46i_post
821    o Clean up AIM package (and keep the results unchanged):
822      include CPP_OPTION and use IMPLICT NONE in all routines ;
823      declare all the variables _RL ; use _d 0 for all numerical constants.
824      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
825    
826    checkpoint46h_post
827    o cleaned up the use of rhoNil and rhoConst.
828      - rhoNil should only appear in the LINEAR equation of state, everywhere
829        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
830        and the dynamical equations are all divided by rhoConst
831    o introduced new parameter rhoConstFresh, a reference density of fresh
832      water, to remove the fresh water flux's dependence on rhoNil. The default
833      value is 999.8 kg/m^3
834    o cleanup up external_forcing.F and external_forcing_surf.F
835      - can now be used by both OCEANIC and OCEANICP
836    checkpoint46h_pre
837    
838     Added code to convert surface volume flux (fresh water) into
839     a mass flux when using P coordinates in the ocean (OCEANICP).
840     Note: It assumes you have set rho0=rhoConst=density of fresh water.
841    
842    checkpoint46g_post
843    o Include a new diagnostic variable phiHydLow for the ocean model
844      - in z-coordinates, it is the bottom pressure anomaly
845      - in p-coordinates, it is the sea surface elevation
846      - in both cases, these variable have global drift, reflecting the mass
847        drift in z-coordinates and the volume drift in p-coordinates
848      - included time averaging for phiHydLow, be aware of the drift!
849    o depth-dependent computation of Bo_surf for pressure coordinates
850      in the ocean (buoyancyRelation='OCEANICP')
851      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
852        Theta, Salinity, and Pressure in the parameter list. This routine is
853        presently contained in find_rho.F. This routine does not give the
854        correct density for 'POLY3', which would be a z-dependent reference
855        density.
856    o cleaned up find_rho
857      - removed obsolete 'eqn' from the parameter list.
858    o added two new verification experiments: gop and goz
859      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
860    checkpoint46g_pre
861    
862    checkpoint46f_post
863    o Enable tangent linear (forward mode) gradient checks:
864      - extended active file handling to g_... files
865      - added TANGENT_SIMULATION to theSimulationMode
866      - extended grdchk package accordingly
867    o added tangent linear setup in verification/carbon/code_ftl
868    o added adjoint setup in verification/front_relax/code_ad
869    
870    checkpoint46e_post
871    o Added new equation of state -> MDJWF
872      - EOS of McDougall et al., 2002, JAOT, submitted
873      - caveat: the equation of state is only valid for a smaller (more
874        realistic?) range of values than JMD95P/Z and UNESCO
875      - added masks to the calculation of pressure in store_pressure
876      - added more check values for density in check_eos (ini_eos.F), some of
877        the old check values are out of the range of the MDJWF-eos, so don't
878        expect perfect matches for those
879    checkpoint46e_pre
880    
881    checkpoint46d_post
882    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
883      'OCEANICP', also initialised field pressure correctly in ini_eos in the
884      case of pressure coordinates. eosType='JMD95Z' in
885      combination with buoyancyRelation='OCEANICP' now causes an error.
886    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
887      in find_alpha/beta.
888    checkpoint46d_pre
889    
890    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
891      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
892    
893    checkpoint46c_post
894    o Changes necessary for ocean in p-coordinates
895     -  Added new buoyancy relation = 'OCEANICP'
896     -  Added new parameters = gravitySign (this used to be contained inside
897        the factor dRdZ which I added when we first switched to R coordinates).
898     X GM/Redi is not compatible (yet)
899     X bottom drag and no-slip need to be debugged.
900    checkpoint46c_pre
901    
902    checkpoint46b_post
903    o Added new equation of state -> JMD95Z and JMD95P
904      - EOS of Jackett and McDougall, 1995, JAOT
905      - moved all EOS parameters into EOS.h
906      - new routines ini_eos.F, store_pressure.F
907    o Added UNESCO EOS, but not recommended because it requires
908      in-situ temperature (see JMD95)
909    o Modified formatting for knudsen2.f in utils/knudsen2 and added
910      unesco.f to be used with POLY3
911    checkpoint46b_pre
912    
913    checkpoint46a_post
914    o Added (atmospheric) pressure loading
915      - new field in FFIELDS.h, etc...
916      - new cpp flag ATMOSPHERIC_LOADING
917    o Changed hFacC to _hFacC in calc_phi_hyd.F
918    o Added SHORTWAVE_HEATING to some files for consistency
919    checkpoint46a_pre
920    
921    checkpoint46
922    further merges from release1_p5
923    o new ctrl package
924      - adopted from ECCO environment to enable optimization
925      - added Eliassen Palm fluxes to controls
926    o added Eliassen Palm flux controls to gradient check package
927    o cost package
928      - Compatible with new ctrl package
929      - added Eliassen Palm cost hooks
930      - modif's of existing cost functions
931    o Adjoint-related bug fixes in kpp:
932      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
933      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
934    o autodiff package
935      - flow directives:
936        + new for S/R do_the_model_io
937        + enhanced for S/R checkpoint
938        + new gmredi.flow
939      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
940        disable adcommon.h/g_common.h by default.
941      - fixed problem for adjoint of global_max
942    o modified verification/carbon/
943    o New setup for adjoint of global_ocean
944    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
945    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
946    o incorporated hooks for sponge layer code (external_forcing.F)
947    
948    checkpoint45d_post
949    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
950    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
951      (affects plume_on_slope "cg2d" output)
952    o add new parameter deltaTfreesurf for free-surface time stepping
953    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
954    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
955    o change phiMin in exp1 (to agree with documentation)
956    o add new flags:
957     - T,S forcing inside/outside Adams-Bashforth
958     - turn off temp,salt advection and/or forcing
959     - for each tracer, define internal flag for multiDimAdvection & A-B
960    o monitor: change definition of KE to check conservation of Energy
961    
962    checkpoint45c_post
963    o Removed f90 comments ("!")
964    o Modified initialisations to enable exf package for MITgcm
965      (without invoking ECCO_PACKAGE).
966    o modifications to gradient check package (Martin Losch)
967      - enable centered differences
968      - modified format of standard output
969    
970    checkpoint45b_post
971    o cleaned exchange calls in cg2d
972    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
973    o included CPP option SINGLE_LAYER_MODE in thermodynamics
974      to configure barotropic setup (Martin Losch)
975    o moved some initialisations within bi,bj loop in dynamics
976      (TAF flow dependency)
977    o in initialise_varia, moved call packages_init_variables
978      before convective_adjustment_init
979      (corresponding adjustment of TAF tape initialisation).
980    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
981    
982    checkpoint45a_post
983    o compute Rho over the whole domain (extend iMin,jMin indices)
984    o specific exchange for X-slice domain (case Ny=1)
985    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
986    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
987    
988    checkpoint44h_post = checkpoint45
989    o Fix to restore differentiability:
990      place at which packages_init_variables is called in
991      initialise_varia is crucial for reverse control flow.
992    o modifications in GMRedi to enable stable adjoint
993      (corresponding modif's in thermodynamics, dynamics)
994    o added missing hook for sponge layer code in external_forcing
995    o modified test cost functions
996    o storing in gad_advection (plus removal of write(0,*)!
997    o missing headers TR1.h added in convective_adjustment routines
998    o errorMessageUnit set non-equal zero in eeboot
999      (conflict on some platforms, e.g. IBM SP3)
1000    o modified carbon verif.
1001    
1002    checkpoint44h_pre
1003    o vertical grid option: allow to put the Interface at the middle between
1004      2 cell-centers ; replace delZ in pkg/kpp by drF.
1005    o GM Advective form: Tracers are advected using the residual transport (=
1006      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1007    
1008    checkpoint44g_post
1009    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1010      results) ; ifdef missing in thermodynamics.F
1011    
1012    checkpoint44f_pre,checkpoint44f_post
1013    o added PTRACERS package
1014      This allows an arbitrary number of passive tracers to be integrated
1015      forward simultaneously with the dynamicaly model.
1016      + Implemented so far:
1017        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1018        - I/O and checkpointing
1019        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1020      + Not implemented so far:
1021        - KPP
1022        - OBCS
1023      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1024        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1025        line in data.pkg.
1026      + This package is disabled by default since it increases storage.
1027    
1028    
1029    o testscript: added -cleanup option
1030    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1031                 b) enable to filter 2D fields.
1032    
1033    checkpoint44e_pre,post
1034    o re-wrote convective adjustment to use pre-calculated weights
1035      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1036      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1037      Original calls to convect() still in place.
1038    
1039    chkpt44d_pre,post
1040    o added missing EXCLUDE_MONITOR flags
1041    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1042      (incompatible typ in MIN/MAX expressions caused problems
1043      on IBM SP3)
1044    o in genmake added variable MAKEDEPEND
1045      plus resetting for case SunOS
1046    o added timer_stats.c routine for IBM SP3
1047    o removed variables in dynamics
1048    !!! I forgot to create tag chkpt44d_pre !!!
1049    !!! But chkpt44d_pre = chkpt44c_post    !!!
1050    
1051    o real fresh water flux implemented with non-linear free-surface.
1052    
1053    chkpt44c_pre,post
1054    o few fix (mask in shap_s2, EmPmR in external_field_load,
1055      USE_NATURAL_BCS in solve_for_P);
1056    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1057    
1058    checkpoint44b_pre/_post
1059    o merge of relevant stuff from the ecco-branch:
1060      - genmake: removed $S64 overwrite for case SunOS
1061      - pkg/exf: update and corrections for field swapping and obcs
1062      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1063                  harmonized between ECCO and MITgcm
1064      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1065                      updated checkpointing_lev... lists for obcs
1066      - model/src: minor changes in forward_step, plot_field
1067                   added directive for divided adjoint in the_main_loop
1068      - pkg/mdsio: added mdsio_gl_slice
1069    
1070    o check parameters & config (chkpt44a_pre,post)
1071    o OBC and NonLin_FrSurf.
1072    
1073    checkpoint44
1074    o fix bug in mom_vi_del2uv
1075    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1076    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1077    o update AIM experiments (NCEP input files)
1078    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1079    o added some stuff for AD
1080    
1081    checkpoint43
1082    o added two new advection tests
1083    o added global 4x4 degree ocean test
1084    o added test of H&S94 with free surface on cube
1085    o some final mods for gradient check, adjoint,...
1086    
1087    checkpoint42
1088      Fixed AD-related problems:
1089    o Store directives up-to-date with re-arranged Adams-Bashforth
1090      (mainly thermodynamics.F)
1091    o New store directives for multi-dim. advection schemes
1092      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1093      * new common block and key passkey
1094      (mainly gad_advection.F)
1095    o Modified store directives for split of dynamics/thermodynamics
1096      for the case ALLOW_KPP
1097    o Cleaned argument list for timestep_tracer.F
1098    
1099    checkpoint41
1100    o re-formatted/added comments in prologues of key subroutines
1101      to work with protex
1102    
1103    checkpoint40
1104    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1105    o added FLT (floats) package from Arne along with demo. experiment
1106    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1107      implementation of forward-in-time forcing terms
1108    o more mods for non-linear free-surface including new variable
1109    o modified multi-dim method to work on cube
1110    o bug fix in KPP (from DM)
1111    
1112    checkpoint40pre9
1113    o added DST advection schemes
1114    o fix MPI bug on SGI's
1115    o modifications for non-linear free-surface
1116    o fixed conditionals for fixed flow/passive tracer only mode
1117    o added tension/strain form of stress tensor
1118    o changes to commenting of arguments for TAF/TAMC
1119    o added/updated many matlab scripts
1120    o added multi-dimensional advection method for tracers
1121      
1122    checkpoint40pre8
1123    o new package rw/
1124      Added method for dumping intermediate local arrays:
1125      mdsio_writetile - same as mdsio_writefield except works from inside
1126                        bi,bj loop
1127      mdsio_writelocal - same as mdsio_writetile except works for local
1128                         arrays
1129      write_local_r? - higher-level wrapper for mdsio_writelocal
1130      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1131      Example given at end of mom_vecinv.F that dumps some local arrays.
1132    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1133      control flux-form versus vector invariant code.
1134      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1135      or genmake -DISABLE ...
1136    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1137      (additional storing is now needed for case vecinv;
1138      currently nothing implemented to switch this storing off
1139      in case fluxform is used since no CPP flag available).
1140    
1141    checkpoint40pre7
1142    o bug fix in dynamics.F
1143      calc_viscosity called before k=1,Nr loop.
1144    o added some #ifdef's ALLOW_PASSIVE_TRACER
1145    o cleaned initialisations in ctrl_map_ini
1146      related to TAF
1147    
1148    checkpoint40pre6
1149    o split dynamics into thermodynamics & dynamics
1150    o corresponding split of calc_diffusivity into
1151      calc_diffusivity, calc_viscosity
1152      (kpp_calc_diff, kpp_calc_visc).
1153    o Added diffkr, kapgm to control variables
1154    o bug fix in gmredi_slope_limit for ldd97
1155    
1156    checkpoint40pre5
1157    o proper initialization of Adams-Bashforth time stepping
1158      + uses forward step for very first step of model (iter=0)
1159    o re-generated *all* output since almost all output is modified by this
1160      change (sorry but we've been putting this one off for about 2 years)
1161      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1162        *not* regenerated since they are already out of date and I don't
1163        want to create the impression that they are suddenly working.
1164    o removed KAP stuff for DEC's
1165    o modified/added many .cvsignore files in */code and */input
1166    o added new expt "solid-body.cs-32x32x1"
1167      + this uses an alternative form of ini_curvilinear_grid.F which
1168        is not necessarily any better than the current one...
1169    
1170    checkpoint40pre4
1171    o added re-initialisations of utrans,vtrans,rtrans in
1172      calc_common_factors which are crucial for TAF.
1173    o extended iMin,jMin range for calc_common_factors,
1174      calc_diffusivity
1175    o added option ALLOW_PASSIVE_TRACER
1176    o a few minor updates and fixes
1177    
1178    checkpoint40pre3
1179    o created calc_gtr1.F for gad package
1180    o split the_main_loop and re-introduced forward_step
1181    o some recomputations of nIter0 for TAMC
1182    
1183    checkpoint40pre2
1184    o Updated to latest branch of AJA, JMC
1185    o Added gradient check package
1186    o Added routines for passive tracer handling
1187    o Added carbon sequestration sensitivity experiment
1188    
1189    checkpoint39
1190     o Modifications and fixes to support TAMC
1191       (mainly missing or wrong directives)
1192     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1193       in addummy_in_stepping
1194     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1195     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1196     o Included following packages:
1197       cal: calendar
1198       exf: external forcing
1199       ecco: essential routines to control use of cal, exf
1200             (NB: this is not the full ECCO environment)
1201     o disabled some packages by default in genmake
1202    
1203    checkpoint38
1204     o see notes_c37_adj.txt
1205     o corrected wrong layer index in external_forcing_t
1206     o replaced the_main_loop/forward_step by the_main_loop
1207     o removed forceoutput from write_state
1208       (replaced criteria for initial/final state)
1209     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1210    
1211    checkpoint37
1212     o mdsio.F routine split and packaged in pkg/mdsio
1213       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1214        used unless genmake -disable=mdsio)
1215     o allow a more precise surface-geopotential gradient for the atmosphere
1216       taking into account the change in space of Alpha (=1/rho) at the surface.
1217     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1218       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1219     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1220       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1221       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1222     o Time-Average diagnostics defined as a pseudo package "timeave".
1223     o pickup files : old pickup (before c35) did not work with new code (c35
1224       and after) unless activating 2 commented lines in initialise-varia.
1225     o Non-Hydrostatic pickup file Pb fixed.
1226     o bug with Rigid-lid version (since c35) fixed.  
1227    
1228    checkpoint36
1229     o implement Crank-Nickelson barotropic time-stepping
1230     o recover Time-Average diagnostics
1231     o fix Pb in checkpoint (PR#19)
1232     o AIM become a standard package ; clean unused CPP_kees
1233    
1234    checkpoint35
1235     o subtantial rewrite of dynamics.f
1236     o allows staggered time-stepping
1237     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1238     o added bottom drag (linear + quadratic)
1239    
1240    checkpoint34
1241     o Modified exchange routines for correct reverse simulation.
1242     o Added verification output to comply with bug fix in impldiff.F
1243       as of c33 (exp2, natl_box).
1244     o Corrected store directives in dynamics.F
1245     o Corrected array boundaries in impldiff.F
1246     o Corrected array dimensions in gmredi.
1247       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1248     o Added routine GLOBAL_SUM_INT to global_sum.F
1249     o Added mdsio_gl.F for ECCO purposes.
1250    
1251    checkpoint33
1252     o Fixed bug in lower BC in impldiff.F
1253     o Fixed confusion about units of forcing arrays in FFIELDS.h
1254       namely Fu,Fv,Qnet,Qsw,EmPmR:
1255       - Removed verification/natl_box/code/external_fields_scale.F
1256         (did not differ from that in model/src)
1257       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1258         (see FFIELDS.h for description)
1259       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1260         kpp_calc.F and kpp_transport_t.F
1261       - Removed model/src/external_fields_scale.F and calls to it
1262       - verification/natl_box uses flux data with "atmospheric" sign so
1263         a special version of external_fields_load.F is used to
1264         change the data as it's read in. This way, the arrays
1265         have the right units and signs at all times tha a user could
1266         possibly use them.
1267     o Corrected genmake to delete a temporary file during configuration
1268    
1269    checkpoint32
1270     o Scaling of forcing fields moved from external_forcing.F to
1271       external_fields_scale.F, called directly after loading fields.
1272     o Surface relaxation terms added to surface tendency fields in
1273       extra subroutine.
1274     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1275       fields.
1276     o Changes in GMRedi to comply with packaging structure.
1277     o Modifications and bug fixes in KPP package.
1278     o Verification experiment for KPP added (verification/nat_box/)
1279    
1280    checkpoint31
1281     o Packages interface brought in line with defined standard
1282       -> new routines packages_...F
1283       -> changes in initialise_fixed.F, initialise_varia.F
1284       -> enables initialisation interface for ECCO package
1285     o Rescaling of external forcing fields immediately after read
1286       (removed from external_forcing.F)
1287       -> new: surface_fields_scale.F
1288       -> affects ini_foorcing.F, external_fields_load.F
1289     o Computation of surface tendencies before tendency updates.
1290       -> new: external_forcing_surf.F
1291     o Change of variable names useGMRedi, useKPP, useECCO
1292     o Further changes in dynamics.F, impldiff.F for TAMC
1293     o Tested for experiments 0, 2, 4.
1294       - not yet tested for GMRedi.
1295       - not yet tested for KPP.
1296    
1297    checkpoint30
1298     o Updates for OBCs
1299     o New experiment for test OBCs (internal_wave)
1300     o New output.txt in verification/exp4/results/
1301     o Updates for KPP: calculation of viscosity corrected, new variables
1302       kpp_dumpFreq and kpp_taveFreq
1303     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1304       and entry for T90 in genmake
1305    
1306    checkpoint29
1307     o packaged KPP and GM/Redi
1308    
1309    checkpoint28
1310     o Corrected initialization of hFacMin for difference vertical coordinates
1311     o Modified calculation of partial cell thickness to more robust algorithm
1312     o config_summary.F: replaced write_1D_... by write_0D_...
1313       read_write.F: added subroutines write_0D_...
1314     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1315       included some initialisations required for TAMC.
1316     o routine calc_isoslopes: modified sqrt computation to make it
1317       differentiable for zero argument.
1318     o routines dynamics, impldiff:
1319       included store directives and tape key computations required for TAMC.
1320     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1321    
1322    checkpoint27
1323     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1324       formulation works properly with variable resolution.
1325     o restructured the calling tree between the_model_main() and dynamics()
1326     o split initialise() into initialise_fixed() and initialise_varia()
1327     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1328       in new routine ini_psurf()
1329    
1330    checkpoint26
1331     o moved some #ifdef in optional routines to encompass everything
1332       except the argument declarations. This was using up some memory.
1333     o fixed macros like _ADT to work with both versions of Linux cpp
1334     o cleaned up some unused and uninitialized variables
1335       (helps when debugging with strict compile options)
1336     o split up CPP_EEOPTIONS.h into options and macros
1337       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1338     o patch for 2 processor JAM mode
1339    
1340    checkpoint25
1341     o updates for OBCs and NH
1342     o dramatically reduced memory usage
1343     o added "JAM" routines for use on Artic network
1344     o parameterization of convection by implicit vertical diffusion
1345     o added a diagnostic of convective index
1346     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1347       (this is was partly for OBCs and NH but also in anticipation of
1348        an explicit free-surface option)
1349     o initial state input files for U and V
1350    
1351    checkpoint24
1352     o Removed some spurious "REAL"s
1353     o Updated KPP to latest version from JPL
1354     o Added a COS(latitude) in horizontal viscosity
1355    
1356    checkpoint23
1357     o Added del^4 diffusion for salt and temperature
1358     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1359    
1360    checkpoint22
1361     o Made many small changes: implicit none, format(i5), etc...
1362     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1363    
1364    checkpoint21
1365     o Introduced new I/O package that supports direct-access records (mdsio.F)
1366     o Split-up mid-level I/O routines
1367     o Updated input data for experiments 0,1,2,4 and 5
1368     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1369    
1370    checkpoint20
1371     o Tidied up open-boundaries some more
1372     o Added non-hydrostatic code
1373     o Fixed some input data
1374     o Modified MPI start-up to work in "coupled" context.
1375    
1376    checkpoint19
1377     o Tidied up directory structure for verification experiments.
1378     o Added new code for open boundaries.
1379     o Corrected advective terms near boundaries.
1380     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1381     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1382     o Split default parameters out of ini_parms.F into set_defaults.F.
1383    
1384    checkpoint18
1385     o Further changes for optional code generation with
1386       CPP - ugh!
1387    
1388    checkpoint17
1389     o Beginning to incorporating modularity
1390       for supporting atmos. and ocean configs.
1391     o Small changes for TAMC complinace
1392     o New ultra simple test case. Barotropic box
1393       configuration "exp0".
1394    
1395    checkpoint16
1396     o Minor changes to exchange routines to support
1397       accumulation in reverse mode. Adjoint of an
1398       assignment is an addition.
1399     o Changes to support compilation by TAMC (LR(1)
1400       syntax) and by g77 under Linux ( 72 character
1401       limit ).
1402    
1403    checkpoint15
1404     Rewrote exchange routines to allow
1405     o General tile <-> tile connectivity.
1406     o TAMC reverse mode flag ( is this really needed? )
1407     o Variable width overlap and exchange region widths.
1408     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1409       shmput/shmget, VIA, SYSV shmem and every other cool
1410       communication method.
1411    
1412    checkpoint14
1413     Consistent isomorphism chages made. These allow dynamical core
1414     to support both pressure and meters as a vertical coordinate.
1415    
1416    checkpoint13
1417     Release which corrects global_max problem and a couple
1418     of KGM time-averaging diagnostic errors. Also contains
1419     a double-gyre experiment setup as well as the baseline
1420     4 degree global template. The double gyre template is
1421     organised to allow it to be applied automatically to
1422     the baseline configuration.
1423    
1424    branch-point-rdot
1425     A few tidy-ups have been made bt the real point of this
1426     check-point (excuse the pun) is to allow a branch to be
1427     made for the purposes of adding the rDot alterations.
1428     I don't want to commit the rDot to the main-trunk until
1429     we've actually tested it...
1430    
1431    checkpoint12
1432     Tidy up and added generic genmake script (formerly
1433     configure script).
1434     Released to testers.
1435    
1436    checkpoint11
1437     Re-arranged initialise() and introduced ini_vertical_grid()
1438     and ini_masks_etc().
1439    
1440    checkpoint10
1441     Introduced the configure script.
1442     Separated out the diags package.
1443     Added template for writing time-averages of tile/intermediate quantities.
1444     Updated SIZE.h in exp2 and made the data big-endian.
1445    
1446    checkpoint9
1447     MPI fix. Filename changes (meta/data). salbin*y stuff.
1448     General tidy-up.
1449     SST.bin SSS.bin added to verification/exp2
1450    
1451    checkpoint8
1452     Inludes time-dependant forcing and time-averaging.
1453     Works at 4x4 and 2.8125x2.8125 global
1454    
1455    checkpoint7-4degree-ref
1456     Branch from checkpoint7. Released for application to
1457     global modeling and general modeling - process studies, regional
1458     model etc..
1459     Configured for verification/exp2 - 4 degree global, two process.
1460    
1461  checkpoint7  checkpoint7
1462   Created by cnh   Created by cnh
1463   Simple 4 degree global simulation   Simple 4 degree global simulation

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