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revision 1.5 by cnh, Mon Jun 15 05:13:55 1998 UTC revision 1.208 by jmc, Thu Nov 13 22:51:32 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 modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
7      - moved surfaceTendencyTice from pkg/seaice to main code
8      - subroutine FREEZE_SURFACE now limits only surface temperature
9        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
10        => new output.txt for global_ocean.cs32x15 & global_with_exf
11      - keep the old version of FREEZE for backward compatibility;
12        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
13    o added surface flux output variables to TIMEAVE_STATVARS
14    o time-averaged output for pkg/ptracers
15    
16    checkpoint52a_pre
17    o some bug fixes for #undef REAL4_IS_SLOW
18    
19    checkpoint52 = ecco_c52_e35
20    o after testing adjoints of checkpoint51u_post
21    
22    checkpoint51u_post
23    o this is the post-merge tag of the ecco-branch
24      (needs another clean checkout and re-testing)
25    o various natl_box_adjoint configs and results
26      but no input fields
27    o obcs adjoint not yet merged!
28    o adding ECCO global 1x1 and 2x2 degree configs
29    o updated/extended some store directives for seaice
30    o pkg/ecco now containes ecco-specific part of cost function
31    o top level routines the_main_loop, forward_step
32      supersede those in model/src/
33      previous input data.cost now in data.ecco
34      (new namelist ecco_cost_nml)
35    o in ctrl/ cleaned some cross-dependencies and updated CPP options
36    
37    checkpoint51t_post
38    o this is the pre-merge tag of the ecco-branch
39    
40    checkpoint51s_post
41    o cleanup: removed various obsolete #define-s
42    o pkg/grdchk
43      - renamed 'ph-grd 3' to 'grad-res'
44      - merged from ecco-branch
45        (remaining bug fixes for obcs gradient checks)
46      - additional high-precision output for testreport
47        (grep for 'precision_grdchk_result')
48    
49    checkpoint51r_post
50    o cleaned up or removed CPP_OPTIONS.h files
51    o updated results for some of the tests to reflect the new
52      optfiles (-ieee: -O0 instead of -O3)
53    
54    checkpoint51q_post
55    o cd_code:
56      - moved cd_scheme.F -> cd_code_scheme.F
57      - separate read_checkpoint from cd_code_ini_vars.F
58      - separated cd_code part from write_checkpoint
59      - updated AD_SOURCE, generated .flow
60      - added CD_CODE_VARS.h to the_main_loop
61      - Moving cd_code specific store dir.s to pkg/cd_code
62    o ctrl package totally restructured
63      - pack/unpack now optional and decoupled from
64        xx_/adxx_ I/O
65      - ctrl_pack/unpack cleaned
66        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
67      - confined inclusion of AD_CONFIG.h to where necessary.
68    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
69    
70    checkpoint51p_post
71    o create initial cd_code package
72      - WARNING: the initialization of fields within packages
73        is broken because INI_FIELDS (where READ_CHECKPOINT is
74        called) is called *before* PACKAGES_INIT_VARIABLES.
75        This seems to be backwards since
76        1) its important to initially zero the entire field including
77           the "halo" region
78        2) zeroing needs to be done *before* reading pickup info
79           and the pickup call might or might not happen in any
80           particular run
81      - this needs an overhaul for R2
82    o cleanup verification/*/code/GMREDI_OPTIONS.h
83    o cleanup testreport
84    
85    checkpoint51o_post
86    o bringing AD-related verif's up to date with genmake2
87      - carbon/
88      - global_ocean.90x40x15/
89      - hs.94.1x64x5/
90      - (front_relax/ )
91    o (more) consistent directory structure for AD-related verif.'s
92    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
93    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
94    o bug fix in find_alpha.F for MDJWF:
95      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
96        change rho -> rho-rhoConst
97      - replace call find_rho to find_rhonum
98    o initialisation of rFlx extended to full array (required by TAF)
99      and shifted to thermodynamics
100    o removed PTRACERS.h in ptracers routine
101    o added surfacetendencyPtr to S/R parameter list pracers_forcing
102    o Correcting initialisations for fVerU, fVerV.
103    o helping TAF to recognize dependency on kUp for
104      fVerU, fVerV
105    o Replacing delZ by delR in pkg/ctrl/
106    checkpoint51o_pre
107    
108    o undid all of cp51 pending some cleanups and discussion
109    o added the [#include "AD_CONFIG.h"] statement to all files that need
110       it for adjoint/tl #defines
111     o re-worked the build logic in genmake2 to support AD_CONFIG.h
112     o removed tools/genmake since it no longer works
113    
114    checkpoint51n_post
115    o modifications to make FREEZE flux visible to pkg/kpp
116      - moved surfaceTendencyTice from pkg/seaice to main code
117      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
118      - subroutine FREEZE now limits only surface temperature
119        (this means new output.txt for global_ocean.90x40x15,
120         global_ocean.cs32x15, and global_with_exf)
121    o added surface flux output variables to TIMEAVE_STATVARS
122    
123    checkpoint51n_pre
124    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
125    o added [#include "AD_CONFIG.h"] to all files that use the following
126      defines:
127      - ALLOW_ADJOINT_RUN
128      - ALLOW_TANGENTLINEAR_RUN
129      - ALLOW_ECCO_OPTIMIZATION
130    
131    checkpoint51m_post
132    o incorporating changes to get TAMC/TAF working in genmake2
133      - added new TAMC/TAF targets to the Makefile
134      - various cleanups related to package handling
135      - these changes should have no impact on the forward model
136    
137    checkpoint51l_post
138    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
139     - faster algorithm for cal_addtime.F
140     - higher precision arithmetic, where needed
141     - pkg/exf *startdate variables changed from calendar date to
142       model integration time
143    
144    checkpoint51l_pre
145    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
146    o enable to apply restoring on S & T only in a latitude band.
147    o update output (external_forcing_surf modif. change truncation errors)
148       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
149    
150    checkpoint51k_post
151    o change default to: useNHMTerms=.FALSE.
152     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
153       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
154     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
155        exp1, ideal_2D_oce
156     - change data file of oceanic exp (leave the results unchanged for now)
157       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
158    o set gravitySign automatically according to the vertical coordinate used
159      (and change sign: back to "logical" value: +1 when R increases downward)
160    o added an include barrier to the default CPP_OPTIONS.h and
161      removed the #include "PACKAGES_CONFIG.h" from it
162    o fix a bug in mom_fluxform (from chk51j_post)
163    
164    checkpoint51j_post
165    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
166    o adjusted some flow directives (dynamics, thermodynamics)
167    o added cubed-sphere case to test cost function
168    o heckpoint_lev?_directives.h now include
169      pkg-specific directives, whenever those are enabled.
170    o Moving pkg-specific flow directives to corresponding pkg
171      Moving pkg-specific differentiation list to corresponding pkg
172      Moving pkg-specific checkpoint-lev storing to corresponding pkg
173      ---> conventions are
174           - pkg_ad.flow
175           - pkg_ad_diff.list
176           - pkg_ad_check_lev?_dir.h
177    
178    checkpoint51i_post
179    o merge of the branch-genmake2
180      - knowingly breaks the older genmake
181      - automatic generation of all ALLOW_${PKG_NAME} defines
182      - new testreport supersedes older testscript
183    o large number of package inclusion and header cleanups
184    checkpoint51i_pre
185    
186    o new output for adjoin of global ocean vector invariant
187    o fix for checkpoint of thermodynamic seaice and bulk_force
188    o Steph gchem various cleanups
189    
190    checkpoint 51h_pre
191    o fixed some single quotes
192    o modify gchem pkg to be more versatile
193    o modifications to clean up dic pkg
194    o add pkg/cfc
195    
196    checkpoint51g_post
197    o provide links for ARPACK and ADM*TLM
198    o start removing verification/vero/
199    o update AD-related stuff
200      (in particular some IF-statements in model/src/ routines)
201    o adding to verification/global_ocean.90x40x15/ adjoint of
202      vector invariant setup
203    
204    checkpoint51f_post
205    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
206    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
207      of tracer Green's fucntions for ocean inversion project.
208    
209    checkpoint51f_pre
210    o Added on-the-fly spatial interpolation capability
211        "USE_EXF_INTERPOLATION" to pkg/exf.
212      - This is a temporary Cartesian-grid hack until
213        the super-duper ESMF coupler becomes available.
214      - See verification/global_with_exf/README for usage example.
215      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
216        flags and modified pkg/seaice accordingly.
217    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
218        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
219        non-local transport term.
220    
221    checkpoint51e_post
222    o pkg/mom_vecinv:
223      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
224      - add time-ave diagnostic of vorticity advection.
225    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
226    o atmospheric geopotential: - include water vapor effect;
227                                - use p^kappa in p* scaling.
228    o land pkg: read initial state from files.
229    o AIM : add stratospheric drag in the upper level
230    
231    checkpoint51d_post
232    o change function ILNBLNK (=> last non-blank char.) to return zero
233      (instead of the string length) when the string. char is empty
234    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
235    o modif's to restore TAMC compatibility
236      - avoid "_d" constructs in PARAMETER declarations
237      - avoid interrupting lines by comment lines
238    o Use cluster local disks for purely local I/O
239      vs. globally visible disks needed for ctrl stuff
240      (merged from ecco-branch)
241      - new active_file_loc... and mdsio_..._loc routines
242      - affected packages: autodiff, ctrl, grdchk, mdsio
243    
244    checkpoint51c_post
245    o introducing integer flag debugLevel
246      - debLevZero: suppress all output
247      - debLevA: standard
248      - debLevB: equivalent to current debugMode=.TRUE.
249    o introducing pathname variable mdsioLocalDir for mdsio
250      that can be specified at runtime
251      (relevant for cluster I/O to local disk)
252    `
253    >>>checkpoint51b_post
254    adjoint of ptracers
255    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
256    o extended state in checkpoint_lev?, etc.
257    o alternative ctrl/cost with tr1 or ptracer
258    o new comlev1_bibj_ptracers
259    o new ptracers.flow
260    o made ptracers_forcing same as external_forcing_s
261    o added verification for adjoint with ptracers
262      - adm. grdchk fail so far
263      - tlm. grdchk OK
264      - checked tapelev/comlev recomputations: OK
265    <<<checkpoint51b_pre
266    
267    checkpoint51a_post
268    o added code for biogeochemistry package
269      - new pkgs: dic, gchem
270      - new subroutine in ptracers
271    o modify code for biogeo packages
272      - in model/src and pkg/ptracers
273    
274    checkpoint51
275    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
276      - autodiff, ctrl, exf, grdchk, seaice
277      kept separate packages
278      - cost, ecco, obcs
279    o updating verification/internal_wave, verification/lab_sea
280      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
281    
282    checkpoint50i_post
283    o Preparing next differentiable checkpoint and sync
284      of MAIN vs. ecco-branch
285      - 1st step: this one is differentiable
286      - 2nd step: next(! not this) checkpoint will have updated packages
287                  from ecco-branch)
288    
289    checkpoint50h_post
290    o new package "land": provide surface BC for AIM.
291    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
292    o AIM: use true log-P extrapolation for near surface temp (= as in
293        F.Molteni paper) ; update aim.5l_cs output.
294    o New variable in PARM03 for more flexible pickups
295    o somewhat cleaned package initialisation sequence for
296      ctrl/ cost/ ecco/ in packages_... routines
297    
298    checkpoint50g_post
299    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
300      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
301      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
302        made the default because of faster convergence than ADI
303    
304    checkpoint50f_post
305    o exf totally restructured
306      - replaced all exf_set_ routines by one generic exf_set_gen.F
307        and made sure it's still differentiable
308      - split exf_getffields.F into new exf_bulkformulae.F
309      - exf_inscal_/exf_outscal_ suffixes consistent with field names
310      - updated adjoint/makefile and relevant verif. accordingly
311    
312    checkpoint50f_pre
313     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
314          + change Evap over land. (update aim.5l_cs output)
315     o added missing .cvsignores and made uniform across expts
316     o changed configuration of tidal_basin_2d expt
317     o added pkg/debug functions for tracing code in fatal crashes
318     o tidied pkg/monitor to use MONITOR_OPTIONS.h
319     o new fn in pkg/monitor to stop model if solution grows too big
320     o removed lots of single quotes from comments
321    
322    checkpoint50e_post
323    o make KPP work with PTRACERS
324     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
325       nearly a copy of kpp_transport_s
326     - there is no analogue to SurfaceTendencyS, so I have to use
327       gPtr(of the surface layer) instead
328    o add a new platform SunFire+mpi (SunFire 15000) to genmake
329    checkpoint50e_pre
330    
331    checkpoint50d_post
332    o change kpp output from multiple-record state files to single-record state
333      files analogous to write_state.F
334    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
335      analogous to the cg2d-related output.
336    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
337      so that writing to internal file fn (with length 512) fails.
338    checkpoint50d_pre
339    
340    checkpoint50c_post
341    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
342    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
343    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
344    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
345    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
346    
347    checkpoint50c_pre
348    Merging from release1_p13:
349    o bug fix for pkg/seaice dynamic solver
350    o Added SEAICE_initialHEFF to pkg/seaice
351    
352    checkpoint50b_post
353    o store u*,v* in gU,V instead of in guNm1,gvNm1
354    o in order to put the momForcing out of the Adams-Bashforth:
355      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
356      to timestep.F
357    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
358    o re-generate output for highly sensitive test-exp:
359       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
360    
361    checkpoint50b_pre
362    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
363    o corrected CPP option mismatch in exf_Bulk... functions for case
364      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
365    
366    checkpoint50a_post
367    o Bug fix for merging between c50 and KPP.
368      ikey was passed from thermodynamics to kpp_calc via
369      common block rather than being recomputed in kpp_calc,
370      in contradiction with new key itdkey.
371      New key ikppkey created, and tamc.h headers updated.
372    
373    checkpoint50
374    - 2nd step of merge with ecco-branch:
375      merge changes in ecco-branch back into main trunk
376    - bug fix in find_alpha
377    - more storing in gmredi_calc_tensor.F, kpp_routines.F
378    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
379    - merged some sliced AD support routines
380    
381    checkpoint49
382    merged from ecco-branch:
383    o exf:
384      - Enable initialisation of forcing fields to constant
385        (runtime) values.
386      - in exf_getffields.F
387        Reduce i-/j-loop to interior domain, discarding overlaps.
388        That also fixes wrong TAF-key computations for key_1, key_2
389        with bulf formulae.
390      - exf_init.F modify #ifdef for exf_init_evap
391      - exf_getffieldrec.F, ctrl_getrec.F
392        The following INT-usages are not safe:
393          fldsecs  = int(fldsecs/fldperiod)*fldperiod
394          fldcount = int(fldsecs/fldperiod) + 1
395        and were modified.
396    o autodiff: checkpoint_lev...
397      - updated storing for bulk formulae (some arrays were missing)
398      - added state for seaice package
399      - synchronized with main branch
400    o DIVA:
401      Modif.s in
402      - the_main_loop.F
403      - the_model_main.F
404      and added cost_final_restore.F cost_final_store.F
405      o With these changes, it is possible to fully separate
406        the first forward run to compute the cost function (mdthe_main_loop)
407        and adjoint runs over individual DIVA intervals (adthe_main_loop)
408        into separate model executions.
409        This enables better tuning of DIVA to given queue sizes.
410      o Loss of cost function value in consecutive DIVA runs is
411        fixed by storing to 'costfinal' file.
412      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
413        beginning/end of adjoint integration is accounted for.
414      The current changes apply to TAF-1.4.26.
415      TAF has one remaining bug, requiring one manual change
416      (see MITgcm manual).
417    o cal: synchronized between MAIN and ecco-branch
418    
419    checkpoint48i_post
420    o Changes to restore differentiability of code w.r.t. previous tag
421      (mostly adding new routines to make list and replacing
422      pressure by totPhiHyd).
423    o Updated and merged grdchk package
424      - has both ADM and TLM checks
425      - works for single- and multi-proc.
426      - output cleaned
427      - worked successfully for parallel DIVA
428    o genmake:
429      - Adding -platform=SP4
430      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
431    o Modif. for DIVA:
432      ctrl_unpack should not be called in intermediate DIVA interval.
433      (similar thing would apply for active files such as
434      tbar, sbar, psbar, which should not be reinitialised;
435      only relevant for ecco-branch)
436    
437    checkpoint48h_post
438    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
439    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
440    o Added SEAICE_initialHEFF to pkg/seaice
441    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
442    
443    checkpoint48g_post
444    --- EOS:
445    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
446      store total Potential in totPhyHyd for diagnostics & EOS.
447    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
448    --- Pressure/geopotential gradient:
449    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
450    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
451      ( changes results of global_ocean_pressure )
452    o NLFS + z-coord.: add eta*Rho' contribution.
453    o accurate phiHyd when using interface-W at the middle between 2 centers
454     ( changes results of ideal_2D_oce )
455    o includes r* 2nd term in potential gradient.
456    
457    checkpoint48f_post
458    Merging from release1_p12:
459    o Modifications for using pkg/exf with pkg/seaice
460      - improved description of the various forcing configurations
461      - added basic radiation bulk formulae to pkg/exf
462      - units/sign fix for evap computation in exf_getffields.F
463      - updated verification/global_with_exf/results/output.txt
464    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
465      (SBO) core products, including oceanic mass, center-of-mass,
466      angular, and bottom pressure (see pkg/sbo/README.sbo).
467    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
468      to avoid negative values in shallow regions.
469      - updated verification/natl_box/results/output.txt
470      - updated verification/lab_sea/results/output.txt
471    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
472    o Added useSingleCpuIO option (see PARAMS.h).
473    o Updated useSingleCpuIO option in mdsio_writefield.F to
474      work with multi-field files, e.g., for single-file pickup.
475    o pkg/seaice:
476      - bug fix in growth.F: QNET for no shortwave case
477      - added HeffFile for specifying initial sea-ice thickness
478      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
479    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
480      kpp_transport_t.F, forward_step.F, and the_main_loop.F
481    o pkg/seaice:
482      - adjoint-friendly modifications
483      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
484    
485    checkpoint48e_post
486    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
487    o dynamics: change definition of computational domain & adapt mom_fluxform
488      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
489    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
490        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
491        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
492        global_ocean.90x40x15 global_with_exf global_ocean_pressure
493        inverted_barometer solid-body.cs-32x32x1
494      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
495    
496    checkpoint48d_post
497    o in preparation for r*:
498     a) use pre-computed gradient of hydrostatic potential:
499        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
500     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
501        => affects results of glob_oce_pressure (different truncation error)  
502      update output.txt of ideal_2D_oce & global_ocean_pressure
503    
504    checkpoint48d_pre
505    o in preparation for r*:
506      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
507      pass the 2 comp. of the grad. as arguments to momentum S/R.
508      but for the moment, only used if it does not change the results.
509    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
510    
511    checkpoint48c_post
512    Modifications in treatment of initial flux forcing controls
513    to avoid extra storing of flux fields.
514    
515    checkpoint48c_pre
516    o Added tidal_basin_2d experiment (currently 1D!)
517    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
518    
519    checkpoint48b_post
520    o r* coordinate added in #ifdef NONLIN_FRSURF block.
521     (modification to pressure gradient not yet implemented)
522    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
523      (for U & V) that are used for vertical advection of momentum.
524    
525    checkpoint48a_post
526    o In preparation for r*, use temp. array to compute vertical transport
527       in flux-form momentum pkg. => change results of few test-exp.
528      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
529                        lab_sea, natl_box & plume_on_slope
530    
531    checkpoint48
532    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
533    
534    checkpoint47j_post
535    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
536    o moved adexch from forward_step to addummy_in_stepping
537    o added exch in ctrl_map_...
538    o aveFreq.=0. at end of cost_final to avoid overwrite in
539      reverse checkpointing loop
540    o Yet more changes in gmredi:
541      * adgmredi_calc_tensor
542        avoiding all recomputation of gmredi_slope_limit
543      * adgmredi_x/y/rtransport
544        added flag for excessive storing to avoid recomp. of
545        u/v/rtans, dTdx/y/z
546        -> this is not really necessary and very memory-consuming
547      * adgmredi_slope_psi:
548        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
549      * gmredi_slope_limit
550        re-activated full calculation of taperfct for case 'ac02'
551    o updating verification/ adjoints of carbon, global_ocean.90x40x15
552    
553    checkpoint47i_post
554    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
555    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
556      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
557    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
558    o gmredi: fix few bugs.
559    
560    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
561    This will be a good checkpoint to plug into the ecco-branch.
562    o few modif.'s to get latest version adjointed
563      (mainly kick out code in ini_linear_phisurf)
564    o modif's to run adjoint with exactConserv
565    o case GM_BOLUS_ADVEC should be cleaned
566      S/R gmredi_slope_psi should be cleaned
567    o verification/carbon now has exactConserv=.TRUE.
568    
569    checkpoint47g_post
570    o time-average AIM output: becomes independent from statvars time-average
571      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
572    o After TAF bug fix:
573      Tested adjoint of gmredi package.
574      Tests were done with checkpoint47 rather than with latest
575      checkpoint47f_post since the latter is broken for the adjoint
576      verification/carbon/ contains both ADM and TLM gradient checks.
577    Here they are, before they get changed/lost/stolen.
578    Mostly modif.'s to fix numerical sensitivities.
579    Gradient checks OK for
580    - GM_taper_scheme:
581      * clipping
582      * ac02
583      * linear
584      * glw91
585      * dm95
586      * ldd97
587    - GMREDI_OPTIONS:
588      * GM_VISBECK_VARIABLE_K
589      * GM_NON_UNITY_DIAGONAL
590      * GM_EXTRA_DIAGONAL
591      * GM_BOLUS_ADVEC
592    in conjunction with data.gmredi parameters to be checked in
593    in a few minutes under verification/carbon/code/
594    
595    checkpoint47f_post
596    Merging from release1_p10:
597    o modifications for using pkg/exf with pkg/seaice
598      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
599        and SEAICE_EXTERNAL_FLUXES
600      - pkg/exf CPP options EXF_READ_EVAP and
601        EXF_NO_BULK_COMPUTATIONS
602      - usage examples are Experiments 8 and 9 in
603        verification/lab_sea/README
604      - verification/lab_sea default experiment now uses
605        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
606    
607    checkpoint47e_post
608    o created a tag prior to creating a branch
609    
610    checkpoint47d_post
611    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
612      at the bottom boundary had an erroneous half slip boundary condition
613    o added bottom drag and no slip boundary condition capabilities to
614      oceanic pressure coordinates code
615    o added new verification experiment global_ocean_pressure, this experiment is
616      also described in the tutorial section of the manual
617    checkpoint47d_pre
618    
619    checkpoint47c_post
620    o Added a verification experiment for a global cubed-sphere ocean run
621      -  verification/global_ocean.cubed32x32x30
622      -  uses pkg/therm_seaice and pkg/bulk_forcing
623    
624    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
625    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
626      when using P-coordinate; only implemented for atmospheric config.
627    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
628      NOTES: requires option NONLIN_FRSURF to be "#define".
629    o update advect_xz/results/output.txt (left from checkpoint44g_post)
630    
631    checkpoint47b_post
632    Merging from release1_p9:
633    o pkg/seaice
634      - removed GOTO's and added taf directives
635      - double precision constants to reduce the g77 (Linux)
636        to F77 (SGI) differences reported in release1_p8
637    o tools/genmake
638      - added SGI options
639    o verification/testscript
640      - updated to that of checkpoint47a_post
641    o verification/global_ocean.90x40x15/input/eedata
642      - modified for SGI f77 compatibility
643    o verification/lab_sea
644      - added description of sea-ice model
645      - added missing matlab routines
646      - added test of thermodynamics parallelization
647    
648    checkpoint47a_post
649    o new pkg: aim_v23
650     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
651       for now, keep the same surface forcing as before.
652     - Part-Cell implemented into AIM; check that Heat & Water are conserved
653     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
654     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
655    o add diagnostic of surface correction term in monitor output
656    
657    o bulk_force and therm_seaice
658    - Two packages:  bulk_force (Bulk forcing)
659      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
660    - Earlier integration from Stephaine Dutkiewicz
661      and Patrick Heimbach.
662    - Two ifdef statements for compile time,
663       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
664    
665    checkpoint47
666    differentiable version of checkpoint46n_post
667    o bug fix in quasihydrostaticterms
668    o * "clean" adjoint code (in terms of extensive recomputations)
669        can now be obtained for all GMREDI options (i.e. for
670        - GM_VISBECK_VARIABLE_K
671        - GM_NON_UNITY_DIAGONAL
672        - GM_EXTRA_DIAGONAL
673        - GM_BOLUS_ADVEC )
674      * However, wrong gradient check problem remains unsolved.
675      * New CPP options have been introduced for different
676        tapering schemes
677    o external_fields_load now part of differentiation list
678    o pressure needs multiple storing;
679      would be nice to have store_pressure at beginning or
680      end of forward_step, e.g. by having phiHyd global (5-dim.)
681      (NB: pressure is needed for certain cases in find_rho,
682      which is also invoked through convective_adjustment).
683    o recomputations in find_rho for cases
684     'JMD95'/'UNESCO' or 'MDJWF' are OK.
685    o #define ATMOSPHERIC_LOADING should be differentiable
686    o ini_forcing shifted to begining of initialise_varia
687    o Incorporating QNVS line search routines into MITgcm
688      (this is separate code, and therefore not under pkg)
689      lsopt/, optim/
690    o Updated verification/carbon/
691      - #define GM_VISBECK_VARIABLE_K
692      - GM_taper_scheme    = 'ldd97'    
693    
694    checkpoint46n_post
695    Merging from release1_p8:
696    o verification/natl_box:
697      updating new external_fields_load routine
698    o New package: pkg/seaice
699      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
700      The sea-ice code is based on Hibler (1979-1980).
701      Two sea-ice dynamic solvers, ADI and LSR, are included.
702      In addition to computing prognostic sea-ice variables and diagnosing
703      the forcing/external data fields that drive the ocean model,
704      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
705      The implied surface heat flux is then stored in variable
706      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
707      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
708      non-local transport term.  Because this call precedes model
709      thermodynamics, temperature under sea-ice may not be "exactly" at
710      the freezing point by the time theta is dumped or time-averaged.
711      N.B.: fairly large differences in accuracy occur across
712            different platforms/compilers; comparison between
713            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
714            generated output gives:
715       T           S           U           V
716      C D M    c        m  s        m  s        m  s        m  s
717      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
718      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
719      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
720    
721      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
722    o GAD:
723      - generated new common blocks to account for call of
724        same gad routines with differing traceridentities
725        (needed to modify tracerIdentity indices in GAD.h)
726      - generated separate common blocks for case useCubedSphereExchange
727        (Department of Futurology)
728      - parameter lists to gmredi_?transport: added tracerIdentity
729      - added new key indices to tamc.h
730    o external_fields_load:
731      - added this routine to TAF list
732      - needed to make some common blocks global and additional storing
733        along the same lines as exf package (checkpoint_lev?_directives.h)
734    o exf:
735      updated external forcing package
736      - bug fixes carried over from ecco-branch
737        (missing OBCS_OPTIONS.h in two routines)
738      - enable easy to use "no forcing".
739      - added exf I/O for atmospheric loading
740      - added exf I/O for runoff data
741      - transfered scaling between exf <-> MITgcm to exf namelist
742    o Adding new verification experiment global_with_exf.
743      This verification experiment is almost identical to the
744      global_ocean.90x40x15 experiment, except that it uses
745      the exf (and cal) package instead of the
746      external_fields_load routine (cf README file).
747    
748    checkpoint46m_post
749    o modified testscript to return -- when there are no lines of "%MON" output
750    o added new flag "quasiHydrostatic" for QH mode
751      and new routine quasihydrostaticterms()
752    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
753      New routine: mom_u_coriolis_nh()
754    o fixed sign of non-hydrostatic metric terms in u and v equations.
755      Depend on correct sign of gravitySign.
756    o added work.pc* to .cvsignore in aim directories using ifc
757    o introduced flag for controllin non-hydrostatic metric terms
758    o removed gravitySign from PARM04
759    o switched to g77/ifc from pgf77 in aim experiments
760    
761    checkpoint46l_post
762    o made convective adjustment work with pressure coordinates:
763     - changed the direction of k-loop in convective_adjustment.F for the
764       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
765     - adjusted the reference pressure k-index in convective_adjustment.F
766     - adjusted the convection condition in convect.F (in analogy to
767       calc_ivdc.F)
768     - convective_adjustment no longer computes anything on the halos
769     - removed the warnings about negative salinity from find_rho.F and
770       find_alpha.F; instead the new routine look_for_neg_salinity, called
771       at the beginning of find_rho, find_alpha, and find_beta, does a
772       check of the entire slice, if CPP-option
773       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
774    checkpoint46l_pre
775    
776    checkpoint46k_post
777    o fixed the verification/global_ocean.90x40x15 experiment:
778     - new bathymetry (the world according to A., JMC, and M.)
779     - new initial fields and forcing fields (*.bin files)
780     - new POLY3.COEFFS (for the next release one should switch to a full
781       equation of state: JMD95P or MDJWF)
782     - fixed several errors and redundancies in the data file
783     - experiment uses looped cells
784     - added matlab directory with diagnostic scripts for plotting of output
785    
786    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
787     - read AIM physics parameters from a file (data.aimphys)
788     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
789    
790    checkpoint46j_post
791    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
792    o move wVel computation at the end of the time step, in S/R integr_continuity
793    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
794    o update timeave pkg for wVel diagnostic.
795    checkpoint46j_pre
796    
797    checkpoint46i_post
798    o Clean up AIM package (and keep the results unchanged):
799      include CPP_OPTION and use IMPLICT NONE in all routines ;
800      declare all the variables _RL ; use _d 0 for all numerical constants.
801      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
802    
803    checkpoint46h_post
804    o cleaned up the use of rhoNil and rhoConst.
805      - rhoNil should only appear in the LINEAR equation of state, everywhere
806        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
807        and the dynamical equations are all divided by rhoConst
808    o introduced new parameter rhoConstFresh, a reference density of fresh
809      water, to remove the fresh water flux's dependence on rhoNil. The default
810      value is 999.8 kg/m^3
811    o cleanup up external_forcing.F and external_forcing_surf.F
812      - can now be used by both OCEANIC and OCEANICP
813    checkpoint46h_pre
814    
815     Added code to convert surface volume flux (fresh water) into
816     a mass flux when using P coordinates in the ocean (OCEANICP).
817     Note: It assumes you have set rho0=rhoConst=density of fresh water.
818    
819    checkpoint46g_post
820    o Include a new diagnostic variable phiHydLow for the ocean model
821      - in z-coordinates, it is the bottom pressure anomaly
822      - in p-coordinates, it is the sea surface elevation
823      - in both cases, these variable have global drift, reflecting the mass
824        drift in z-coordinates and the volume drift in p-coordinates
825      - included time averaging for phiHydLow, be aware of the drift!
826    o depth-dependent computation of Bo_surf for pressure coordinates
827      in the ocean (buoyancyRelation='OCEANICP')
828      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
829        Theta, Salinity, and Pressure in the parameter list. This routine is
830        presently contained in find_rho.F. This routine does not give the
831        correct density for 'POLY3', which would be a z-dependent reference
832        density.
833    o cleaned up find_rho
834      - removed obsolete 'eqn' from the parameter list.
835    o added two new verification experiments: gop and goz
836      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
837    checkpoint46g_pre
838    
839    checkpoint46f_post
840    o Enable tangent linear (forward mode) gradient checks:
841      - extended active file handling to g_... files
842      - added TANGENT_SIMULATION to theSimulationMode
843      - extended grdchk package accordingly
844    o added tangent linear setup in verification/carbon/code_ftl
845    o added adjoint setup in verification/front_relax/code_ad
846    
847    checkpoint46e_post
848    o Added new equation of state -> MDJWF
849      - EOS of McDougall et al., 2002, JAOT, submitted
850      - caveat: the equation of state is only valid for a smaller (more
851        realistic?) range of values than JMD95P/Z and UNESCO
852      - added masks to the calculation of pressure in store_pressure
853      - added more check values for density in check_eos (ini_eos.F), some of
854        the old check values are out of the range of the MDJWF-eos, so don't
855        expect perfect matches for those
856    checkpoint46e_pre
857    
858    checkpoint46d_post
859    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
860      'OCEANICP', also initialised field pressure correctly in ini_eos in the
861      case of pressure coordinates. eosType='JMD95Z' in
862      combination with buoyancyRelation='OCEANICP' now causes an error.
863    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
864      in find_alpha/beta.
865    checkpoint46d_pre
866    
867    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
868      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
869    
870    checkpoint46c_post
871    o Changes necessary for ocean in p-coordinates
872     -  Added new buoyancy relation = 'OCEANICP'
873     -  Added new parameters = gravitySign (this used to be contained inside
874        the factor dRdZ which I added when we first switched to R coordinates).
875     X GM/Redi is not compatible (yet)
876     X bottom drag and no-slip need to be debugged.
877    checkpoint46c_pre
878    
879    checkpoint46b_post
880    o Added new equation of state -> JMD95Z and JMD95P
881      - EOS of Jackett and McDougall, 1995, JAOT
882      - moved all EOS parameters into EOS.h
883      - new routines ini_eos.F, store_pressure.F
884    o Added UNESCO EOS, but not recommended because it requires
885      in-situ temperature (see JMD95)
886    o Modified formatting for knudsen2.f in utils/knudsen2 and added
887      unesco.f to be used with POLY3
888    checkpoint46b_pre
889    
890    checkpoint46a_post
891    o Added (atmospheric) pressure loading
892      - new field in FFIELDS.h, etc...
893      - new cpp flag ATMOSPHERIC_LOADING
894    o Changed hFacC to _hFacC in calc_phi_hyd.F
895    o Added SHORTWAVE_HEATING to some files for consistency
896    checkpoint46a_pre
897    
898    checkpoint46
899    further merges from release1_p5
900    o new ctrl package
901      - adopted from ECCO environment to enable optimization
902      - added Eliassen Palm fluxes to controls
903    o added Eliassen Palm flux controls to gradient check package
904    o cost package
905      - Compatible with new ctrl package
906      - added Eliassen Palm cost hooks
907      - modif's of existing cost functions
908    o Adjoint-related bug fixes in kpp:
909      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
910      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
911    o autodiff package
912      - flow directives:
913        + new for S/R do_the_model_io
914        + enhanced for S/R checkpoint
915        + new gmredi.flow
916      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
917        disable adcommon.h/g_common.h by default.
918      - fixed problem for adjoint of global_max
919    o modified verification/carbon/
920    o New setup for adjoint of global_ocean
921    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
922    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
923    o incorporated hooks for sponge layer code (external_forcing.F)
924    
925    checkpoint45d_post
926    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
927    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
928      (affects plume_on_slope "cg2d" output)
929    o add new parameter deltaTfreesurf for free-surface time stepping
930    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
931    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
932    o change phiMin in exp1 (to agree with documentation)
933    o add new flags:
934     - T,S forcing inside/outside Adams-Bashforth
935     - turn off temp,salt advection and/or forcing
936     - for each tracer, define internal flag for multiDimAdvection & A-B
937    o monitor: change definition of KE to check conservation of Energy
938    
939    checkpoint45c_post
940    o Removed f90 comments ("!")
941    o Modified initialisations to enable exf package for MITgcm
942      (without invoking ECCO_PACKAGE).
943    o modifications to gradient check package (Martin Losch)
944      - enable centered differences
945      - modified format of standard output
946    
947    checkpoint45b_post
948    o cleaned exchange calls in cg2d
949    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
950    o included CPP option SINGLE_LAYER_MODE in thermodynamics
951      to configure barotropic setup (Martin Losch)
952    o moved some initialisations within bi,bj loop in dynamics
953      (TAF flow dependency)
954    o in initialise_varia, moved call packages_init_variables
955      before convective_adjustment_init
956      (corresponding adjustment of TAF tape initialisation).
957    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
958    
959    checkpoint45a_post
960    o compute Rho over the whole domain (extend iMin,jMin indices)
961    o specific exchange for X-slice domain (case Ny=1)
962    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
963    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
964    
965    checkpoint44h_post = checkpoint45
966    o Fix to restore differentiability:
967      place at which packages_init_variables is called in
968      initialise_varia is crucial for reverse control flow.
969    o modifications in GMRedi to enable stable adjoint
970      (corresponding modif's in thermodynamics, dynamics)
971    o added missing hook for sponge layer code in external_forcing
972    o modified test cost functions
973    o storing in gad_advection (plus removal of write(0,*)!
974    o missing headers TR1.h added in convective_adjustment routines
975    o errorMessageUnit set non-equal zero in eeboot
976      (conflict on some platforms, e.g. IBM SP3)
977    o modified carbon verif.
978    
979    checkpoint44h_pre
980    o vertical grid option: allow to put the Interface at the middle between
981      2 cell-centers ; replace delZ in pkg/kpp by drF.
982    o GM Advective form: Tracers are advected using the residual transport (=
983      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
984    
985    checkpoint44g_post
986    o fix surface correction term in multiDimAdvection (affects plume_on_slope
987      results) ; ifdef missing in thermodynamics.F
988    
989    checkpoint44f_pre,checkpoint44f_post
990    o added PTRACERS package
991      This allows an arbitrary number of passive tracers to be integrated
992      forward simultaneously with the dynamicaly model.
993      + Implemented so far:
994        - basic forward algorithm (time-stepping, advection, diffusion, convection)
995        - I/O and checkpointing
996        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
997      + Not implemented so far:
998        - KPP
999        - OBCS
1000      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1001        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1002        line in data.pkg.
1003      + This package is disabled by default since it increases storage.
1004    
1005    
1006    o testscript: added -cleanup option
1007    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1008                 b) enable to filter 2D fields.
1009    
1010    checkpoint44e_pre,post
1011    o re-wrote convective adjustment to use pre-calculated weights
1012      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1013      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1014      Original calls to convect() still in place.
1015    
1016    chkpt44d_pre,post
1017    o added missing EXCLUDE_MONITOR flags
1018    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1019      (incompatible typ in MIN/MAX expressions caused problems
1020      on IBM SP3)
1021    o in genmake added variable MAKEDEPEND
1022      plus resetting for case SunOS
1023    o added timer_stats.c routine for IBM SP3
1024    o removed variables in dynamics
1025    !!! I forgot to create tag chkpt44d_pre !!!
1026    !!! But chkpt44d_pre = chkpt44c_post    !!!
1027    
1028    o real fresh water flux implemented with non-linear free-surface.
1029    
1030    chkpt44c_pre,post
1031    o few fix (mask in shap_s2, EmPmR in external_field_load,
1032      USE_NATURAL_BCS in solve_for_P);
1033    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1034    
1035    checkpoint44b_pre/_post
1036    o merge of relevant stuff from the ecco-branch:
1037      - genmake: removed $S64 overwrite for case SunOS
1038      - pkg/exf: update and corrections for field swapping and obcs
1039      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1040                  harmonized between ECCO and MITgcm
1041      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1042                      updated checkpointing_lev... lists for obcs
1043      - model/src: minor changes in forward_step, plot_field
1044                   added directive for divided adjoint in the_main_loop
1045      - pkg/mdsio: added mdsio_gl_slice
1046    
1047    o check parameters & config (chkpt44a_pre,post)
1048    o OBC and NonLin_FrSurf.
1049    
1050    checkpoint44
1051    o fix bug in mom_vi_del2uv
1052    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1053    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1054    o update AIM experiments (NCEP input files)
1055    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1056    o added some stuff for AD
1057    
1058    checkpoint43
1059    o added two new advection tests
1060    o added global 4x4 degree ocean test
1061    o added test of H&S94 with free surface on cube
1062    o some final mods for gradient check, adjoint,...
1063    
1064    checkpoint42
1065      Fixed AD-related problems:
1066    o Store directives up-to-date with re-arranged Adams-Bashforth
1067      (mainly thermodynamics.F)
1068    o New store directives for multi-dim. advection schemes
1069      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1070      * new common block and key passkey
1071      (mainly gad_advection.F)
1072    o Modified store directives for split of dynamics/thermodynamics
1073      for the case ALLOW_KPP
1074    o Cleaned argument list for timestep_tracer.F
1075    
1076    checkpoint41
1077    o re-formatted/added comments in prologues of key subroutines
1078      to work with protex
1079    
1080    checkpoint40
1081    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1082    o added FLT (floats) package from Arne along with demo. experiment
1083    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1084      implementation of forward-in-time forcing terms
1085    o more mods for non-linear free-surface including new variable
1086    o modified multi-dim method to work on cube
1087    o bug fix in KPP (from DM)
1088    
1089    checkpoint40pre9
1090    o added DST advection schemes
1091    o fix MPI bug on SGI's
1092    o modifications for non-linear free-surface
1093    o fixed conditionals for fixed flow/passive tracer only mode
1094    o added tension/strain form of stress tensor
1095    o changes to commenting of arguments for TAF/TAMC
1096    o added/updated many matlab scripts
1097    o added multi-dimensional advection method for tracers
1098      
1099    checkpoint40pre8
1100    o new package rw/
1101      Added method for dumping intermediate local arrays:
1102      mdsio_writetile - same as mdsio_writefield except works from inside
1103                        bi,bj loop
1104      mdsio_writelocal - same as mdsio_writetile except works for local
1105                         arrays
1106      write_local_r? - higher-level wrapper for mdsio_writelocal
1107      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1108      Example given at end of mom_vecinv.F that dumps some local arrays.
1109    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1110      control flux-form versus vector invariant code.
1111      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1112      or genmake -DISABLE ...
1113    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1114      (additional storing is now needed for case vecinv;
1115      currently nothing implemented to switch this storing off
1116      in case fluxform is used since no CPP flag available).
1117    
1118    checkpoint40pre7
1119    o bug fix in dynamics.F
1120      calc_viscosity called before k=1,Nr loop.
1121    o added some #ifdef's ALLOW_PASSIVE_TRACER
1122    o cleaned initialisations in ctrl_map_ini
1123      related to TAF
1124    
1125    checkpoint40pre6
1126    o split dynamics into thermodynamics & dynamics
1127    o corresponding split of calc_diffusivity into
1128      calc_diffusivity, calc_viscosity
1129      (kpp_calc_diff, kpp_calc_visc).
1130    o Added diffkr, kapgm to control variables
1131    o bug fix in gmredi_slope_limit for ldd97
1132    
1133    checkpoint40pre5
1134    o proper initialization of Adams-Bashforth time stepping
1135      + uses forward step for very first step of model (iter=0)
1136    o re-generated *all* output since almost all output is modified by this
1137      change (sorry but we've been putting this one off for about 2 years)
1138      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1139        *not* regenerated since they are already out of date and I don't
1140        want to create the impression that they are suddenly working.
1141    o removed KAP stuff for DEC's
1142    o modified/added many .cvsignore files in */code and */input
1143    o added new expt "solid-body.cs-32x32x1"
1144      + this uses an alternative form of ini_curvilinear_grid.F which
1145        is not necessarily any better than the current one...
1146    
1147    checkpoint40pre4
1148    o added re-initialisations of utrans,vtrans,rtrans in
1149      calc_common_factors which are crucial for TAF.
1150    o extended iMin,jMin range for calc_common_factors,
1151      calc_diffusivity
1152    o added option ALLOW_PASSIVE_TRACER
1153    o a few minor updates and fixes
1154    
1155    checkpoint40pre3
1156    o created calc_gtr1.F for gad package
1157    o split the_main_loop and re-introduced forward_step
1158    o some recomputations of nIter0 for TAMC
1159    
1160    checkpoint40pre2
1161    o Updated to latest branch of AJA, JMC
1162    o Added gradient check package
1163    o Added routines for passive tracer handling
1164    o Added carbon sequestration sensitivity experiment
1165    
1166    checkpoint39
1167     o Modifications and fixes to support TAMC
1168       (mainly missing or wrong directives)
1169     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1170       in addummy_in_stepping
1171     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1172     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1173     o Included following packages:
1174       cal: calendar
1175       exf: external forcing
1176       ecco: essential routines to control use of cal, exf
1177             (NB: this is not the full ECCO environment)
1178     o disabled some packages by default in genmake
1179    
1180    checkpoint38
1181     o see notes_c37_adj.txt
1182     o corrected wrong layer index in external_forcing_t
1183     o replaced the_main_loop/forward_step by the_main_loop
1184     o removed forceoutput from write_state
1185       (replaced criteria for initial/final state)
1186     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1187    
1188    checkpoint37
1189     o mdsio.F routine split and packaged in pkg/mdsio
1190       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1191        used unless genmake -disable=mdsio)
1192     o allow a more precise surface-geopotential gradient for the atmosphere
1193       taking into account the change in space of Alpha (=1/rho) at the surface.
1194     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1195       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1196     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1197       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1198       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1199     o Time-Average diagnostics defined as a pseudo package "timeave".
1200     o pickup files : old pickup (before c35) did not work with new code (c35
1201       and after) unless activating 2 commented lines in initialise-varia.
1202     o Non-Hydrostatic pickup file Pb fixed.
1203     o bug with Rigid-lid version (since c35) fixed.  
1204    
1205    checkpoint36
1206     o implement Crank-Nickelson barotropic time-stepping
1207     o recover Time-Average diagnostics
1208     o fix Pb in checkpoint (PR#19)
1209     o AIM become a standard package ; clean unused CPP_kees
1210    
1211    checkpoint35
1212     o subtantial rewrite of dynamics.f
1213     o allows staggered time-stepping
1214     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1215     o added bottom drag (linear + quadratic)
1216    
1217    checkpoint34
1218     o Modified exchange routines for correct reverse simulation.
1219     o Added verification output to comply with bug fix in impldiff.F
1220       as of c33 (exp2, natl_box).
1221     o Corrected store directives in dynamics.F
1222     o Corrected array boundaries in impldiff.F
1223     o Corrected array dimensions in gmredi.
1224       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1225     o Added routine GLOBAL_SUM_INT to global_sum.F
1226     o Added mdsio_gl.F for ECCO purposes.
1227    
1228    checkpoint33
1229     o Fixed bug in lower BC in impldiff.F
1230     o Fixed confusion about units of forcing arrays in FFIELDS.h
1231       namely Fu,Fv,Qnet,Qsw,EmPmR:
1232       - Removed verification/natl_box/code/external_fields_scale.F
1233         (did not differ from that in model/src)
1234       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1235         (see FFIELDS.h for description)
1236       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1237         kpp_calc.F and kpp_transport_t.F
1238       - Removed model/src/external_fields_scale.F and calls to it
1239       - verification/natl_box uses flux data with "atmospheric" sign so
1240         a special version of external_fields_load.F is used to
1241         change the data as it's read in. This way, the arrays
1242         have the right units and signs at all times tha a user could
1243         possibly use them.
1244     o Corrected genmake to delete a temporary file during configuration
1245    
1246    checkpoint32
1247     o Scaling of forcing fields moved from external_forcing.F to
1248       external_fields_scale.F, called directly after loading fields.
1249     o Surface relaxation terms added to surface tendency fields in
1250       extra subroutine.
1251     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1252       fields.
1253     o Changes in GMRedi to comply with packaging structure.
1254     o Modifications and bug fixes in KPP package.
1255     o Verification experiment for KPP added (verification/nat_box/)
1256    
1257    checkpoint31
1258     o Packages interface brought in line with defined standard
1259       -> new routines packages_...F
1260       -> changes in initialise_fixed.F, initialise_varia.F
1261       -> enables initialisation interface for ECCO package
1262     o Rescaling of external forcing fields immediately after read
1263       (removed from external_forcing.F)
1264       -> new: surface_fields_scale.F
1265       -> affects ini_foorcing.F, external_fields_load.F
1266     o Computation of surface tendencies before tendency updates.
1267       -> new: external_forcing_surf.F
1268     o Change of variable names useGMRedi, useKPP, useECCO
1269     o Further changes in dynamics.F, impldiff.F for TAMC
1270     o Tested for experiments 0, 2, 4.
1271       - not yet tested for GMRedi.
1272       - not yet tested for KPP.
1273    
1274    checkpoint30
1275     o Updates for OBCs
1276     o New experiment for test OBCs (internal_wave)
1277     o New output.txt in verification/exp4/results/
1278     o Updates for KPP: calculation of viscosity corrected, new variables
1279       kpp_dumpFreq and kpp_taveFreq
1280     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1281       and entry for T90 in genmake
1282    
1283    checkpoint29
1284     o packaged KPP and GM/Redi
1285    
1286    checkpoint28
1287     o Corrected initialization of hFacMin for difference vertical coordinates
1288     o Modified calculation of partial cell thickness to more robust algorithm
1289     o config_summary.F: replaced write_1D_... by write_0D_...
1290       read_write.F: added subroutines write_0D_...
1291     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1292       included some initialisations required for TAMC.
1293     o routine calc_isoslopes: modified sqrt computation to make it
1294       differentiable for zero argument.
1295     o routines dynamics, impldiff:
1296       included store directives and tape key computations required for TAMC.
1297     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1298    
1299    checkpoint27
1300     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1301       formulation works properly with variable resolution.
1302     o restructured the calling tree between the_model_main() and dynamics()
1303     o split initialise() into initialise_fixed() and initialise_varia()
1304     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1305       in new routine ini_psurf()
1306    
1307    checkpoint26
1308     o moved some #ifdef in optional routines to encompass everything
1309       except the argument declarations. This was using up some memory.
1310     o fixed macros like _ADT to work with both versions of Linux cpp
1311     o cleaned up some unused and uninitialized variables
1312       (helps when debugging with strict compile options)
1313     o split up CPP_EEOPTIONS.h into options and macros
1314       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1315     o patch for 2 processor JAM mode
1316    
1317    checkpoint25
1318     o updates for OBCs and NH
1319     o dramatically reduced memory usage
1320     o added "JAM" routines for use on Artic network
1321     o parameterization of convection by implicit vertical diffusion
1322     o added a diagnostic of convective index
1323     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1324       (this is was partly for OBCs and NH but also in anticipation of
1325        an explicit free-surface option)
1326     o initial state input files for U and V
1327    
1328    checkpoint24
1329     o Removed some spurious "REAL"s
1330     o Updated KPP to latest version from JPL
1331     o Added a COS(latitude) in horizontal viscosity
1332    
1333    checkpoint23
1334     o Added del^4 diffusion for salt and temperature
1335     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1336    
1337    checkpoint22
1338     o Made many small changes: implicit none, format(i5), etc...
1339     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1340    
1341    checkpoint21
1342     o Introduced new I/O package that supports direct-access records (mdsio.F)
1343     o Split-up mid-level I/O routines
1344     o Updated input data for experiments 0,1,2,4 and 5
1345     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1346    
1347    checkpoint20
1348     o Tidied up open-boundaries some more
1349     o Added non-hydrostatic code
1350     o Fixed some input data
1351     o Modified MPI start-up to work in "coupled" context.
1352    
1353    checkpoint19
1354     o Tidied up directory structure for verification experiments.
1355     o Added new code for open boundaries.
1356     o Corrected advective terms near boundaries.
1357     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1358     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1359     o Split default parameters out of ini_parms.F into set_defaults.F.
1360    
1361    checkpoint18
1362     o Further changes for optional code generation with
1363       CPP - ugh!
1364    
1365    checkpoint17
1366     o Beginning to incorporating modularity
1367       for supporting atmos. and ocean configs.
1368     o Small changes for TAMC complinace
1369     o New ultra simple test case. Barotropic box
1370       configuration "exp0".
1371    
1372    checkpoint16
1373     o Minor changes to exchange routines to support
1374       accumulation in reverse mode. Adjoint of an
1375       assignment is an addition.
1376     o Changes to support compilation by TAMC (LR(1)
1377       syntax) and by g77 under Linux ( 72 character
1378       limit ).
1379    
1380    checkpoint15
1381     Rewrote exchange routines to allow
1382     o General tile <-> tile connectivity.
1383     o TAMC reverse mode flag ( is this really needed? )
1384     o Variable width overlap and exchange region widths.
1385     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1386       shmput/shmget, VIA, SYSV shmem and every other cool
1387       communication method.
1388    
1389    checkpoint14
1390     Consistent isomorphism chages made. These allow dynamical core
1391     to support both pressure and meters as a vertical coordinate.
1392    
1393    checkpoint13
1394     Release which corrects global_max problem and a couple
1395     of KGM time-averaging diagnostic errors. Also contains
1396     a double-gyre experiment setup as well as the baseline
1397     4 degree global template. The double gyre template is
1398     organised to allow it to be applied automatically to
1399     the baseline configuration.
1400    
1401    branch-point-rdot
1402     A few tidy-ups have been made bt the real point of this
1403     check-point (excuse the pun) is to allow a branch to be
1404     made for the purposes of adding the rDot alterations.
1405     I don't want to commit the rDot to the main-trunk until
1406     we've actually tested it...
1407    
1408    checkpoint12
1409     Tidy up and added generic genmake script (formerly
1410     configure script).
1411     Released to testers.
1412    
1413    checkpoint11
1414     Re-arranged initialise() and introduced ini_vertical_grid()
1415     and ini_masks_etc().
1416    
1417    checkpoint10
1418     Introduced the configure script.
1419     Separated out the diags package.
1420     Added template for writing time-averages of tile/intermediate quantities.
1421     Updated SIZE.h in exp2 and made the data big-endian.
1422    
1423    checkpoint9
1424     MPI fix. Filename changes (meta/data). salbin*y stuff.
1425     General tidy-up.
1426     SST.bin SSS.bin added to verification/exp2
1427    
1428    checkpoint8
1429     Inludes time-dependant forcing and time-averaging.
1430     Works at 4x4 and 2.8125x2.8125 global
1431    
1432    checkpoint7-4degree-ref
1433     Branch from checkpoint7. Released for application to
1434     global modeling and general modeling - process studies, regional
1435     model etc..
1436     Configured for verification/exp2 - 4 degree global, two process.
1437    
1438  checkpoint7  checkpoint7
1439   Created by cnh   Created by cnh
1440   Simple 4 degree global simulation   Simple 4 degree global simulation

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