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revision 1.43 by heimbach, Mon Jul 30 20:47:52 2001 UTC revision 1.234 by jmc, Sat Jan 3 01:03:10 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
7      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
8    checkpoint52e_pre
9    
10    o fix bug in impldiff when Nr=1 or Nr=2.
11    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
12    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
13    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
14      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
15    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
16    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
17    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
18    
19    checkpoint52d_post
20    o re-tiled many expts to allow comparison in multi-processor mode
21      - updated output accordingly
22      - changed hs94.128x64x5 to use intial T from file rather than use the
23        random number generator
24    o add infrastructure in model routines for fizhi and gridalt packages
25    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
26    o changes to permit hi-res, cubed-sphere, configuration
27      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
28      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
29      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
30        of surface winds for the cube
31      (A verification experiment, based on global_ocean.cs32x15, but with
32       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
33       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
34       complete with example surface forcing files and matlab scripts to look
35       at the output and compare it with that of global_ocean.cs32x15.)
36    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
37       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
38       to conform to the common rule.
39    o check-in the first version of the coupler + interfaces for multi-components
40       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
41       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
42       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
43       - ocean and atmos. share the same horizontal grid (no interpolation).
44       - exchanges between component and coupler is done in forward_step
45    o new verification experiment, cpl_aim+ocn:
46       coupled ocean - AIM atmosphere on cs32 grid.
47    
48    checkpoint52d_pre
49    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
50    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
51    
52    checkpoint52c_post
53    o Fixing OPTIONS files for use of exf:
54      - ALLOW_ECCO not needed
55      - ECCO_CPPOPTIONS.h should not be included from
56        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
57        as has been the case in the past
58      - All cal/exf related options are currently set in
59        single header file. Should remain so until we
60        agree on a consistent new policy.
61    o Removed all CPP options for cal package.
62      cal has no more CPP options.
63    o modified STOREs in GAD_ADVECTION
64    o corrected key comp. for passkey
65    
66    checkpoint52b_post
67    o new version: "thsice" of thermodynamic sea-ice pkg:
68     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
69     - modify fluxes but do not change theta directly;
70     - light cleaning of bulk_force pkg (still needed with thsice).
71     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
72       + output_thsice.txt to test thsice & bulk_force pkgs.
73    o put back grid & coriolis monitor output.
74    checkpoint52b_pre
75    
76    o call "do_the_model_io" at the beginning (=> dump initial state)
77    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
78    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
79      (need info on NUMBER_OF_PTRACERS)
80    o missing PTRACERS headers in some routines
81    o default tamc.h in pkg/autodiff supposed to crash
82      to ensure proper customization
83    
84    checkpoint52a_post
85    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
86      - moved surfaceTendencyTice from pkg/seaice to main code
87      - subroutine FREEZE_SURFACE now limits only surface temperature
88        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
89        => new output.txt for global_ocean.cs32x15 & global_with_exf
90      - keep the old version of FREEZE for backward compatibility;
91        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
92      - corresponding modifs for TAF directives
93    o added surface flux output variables to TIMEAVE_STATVARS
94    o time-averaged output for pkg/ptracers
95    o fix problem with ECCO-related divided adjoint
96      snapshot file was missing some ad-variables,
97      but no warning issued by TAF
98    
99    checkpoint52a_pre
100    o some bug fixes for #undef REAL4_IS_SLOW
101    
102    checkpoint52 = ecco_c52_e35
103    o after testing adjoints of checkpoint51u_post
104    
105    checkpoint51u_post
106    o this is the post-merge tag of the ecco-branch
107      (needs another clean checkout and re-testing)
108    o various natl_box_adjoint configs and results
109      but no input fields
110    o obcs adjoint not yet merged!
111    o adding ECCO global 1x1 and 2x2 degree configs
112    o updated/extended some store directives for seaice
113    o pkg/ecco now containes ecco-specific part of cost function
114    o top level routines the_main_loop, forward_step
115      supersede those in model/src/
116      previous input data.cost now in data.ecco
117      (new namelist ecco_cost_nml)
118    o in ctrl/ cleaned some cross-dependencies and updated CPP options
119    
120    checkpoint51t_post
121    o this is the pre-merge tag of the ecco-branch
122    
123    checkpoint51s_post
124    o cleanup: removed various obsolete #define-s
125    o pkg/grdchk
126      - renamed 'ph-grd 3' to 'grad-res'
127      - merged from ecco-branch
128        (remaining bug fixes for obcs gradient checks)
129      - additional high-precision output for testreport
130        (grep for 'precision_grdchk_result')
131    
132    checkpoint51r_post
133    o cleaned up or removed CPP_OPTIONS.h files
134    o updated results for some of the tests to reflect the new
135      optfiles (-ieee: -O0 instead of -O3)
136    
137    checkpoint51q_post
138    o cd_code:
139      - moved cd_scheme.F -> cd_code_scheme.F
140      - separate read_checkpoint from cd_code_ini_vars.F
141      - separated cd_code part from write_checkpoint
142      - updated AD_SOURCE, generated .flow
143      - added CD_CODE_VARS.h to the_main_loop
144      - Moving cd_code specific store dir.s to pkg/cd_code
145    o ctrl package totally restructured
146      - pack/unpack now optional and decoupled from
147        xx_/adxx_ I/O
148      - ctrl_pack/unpack cleaned
149        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
150      - confined inclusion of AD_CONFIG.h to where necessary.
151    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
152    
153    checkpoint51p_post
154    o create initial cd_code package
155      - WARNING: the initialization of fields within packages
156        is broken because INI_FIELDS (where READ_CHECKPOINT is
157        called) is called *before* PACKAGES_INIT_VARIABLES.
158        This seems to be backwards since
159        1) its important to initially zero the entire field including
160           the "halo" region
161        2) zeroing needs to be done *before* reading pickup info
162           and the pickup call might or might not happen in any
163           particular run
164      - this needs an overhaul for R2
165    o cleanup verification/*/code/GMREDI_OPTIONS.h
166    o cleanup testreport
167    
168    checkpoint51o_post
169    o bringing AD-related verif's up to date with genmake2
170      - carbon/
171      - global_ocean.90x40x15/
172      - hs.94.1x64x5/
173      - (front_relax/ )
174    o (more) consistent directory structure for AD-related verif.'s
175    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
176    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
177    o bug fix in find_alpha.F for MDJWF:
178      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
179        change rho -> rho-rhoConst
180      - replace call find_rho to find_rhonum
181    o initialisation of rFlx extended to full array (required by TAF)
182      and shifted to thermodynamics
183    o removed PTRACERS.h in ptracers routine
184    o added surfacetendencyPtr to S/R parameter list pracers_forcing
185    o Correcting initialisations for fVerU, fVerV.
186    o helping TAF to recognize dependency on kUp for
187      fVerU, fVerV
188    o Replacing delZ by delR in pkg/ctrl/
189    checkpoint51o_pre
190    
191    o undid all of cp51 pending some cleanups and discussion
192    o added the [#include "AD_CONFIG.h"] statement to all files that need
193       it for adjoint/tl #defines
194     o re-worked the build logic in genmake2 to support AD_CONFIG.h
195     o removed tools/genmake since it no longer works
196    
197    checkpoint51n_post
198    o modifications to make FREEZE flux visible to pkg/kpp
199      - moved surfaceTendencyTice from pkg/seaice to main code
200      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
201      - subroutine FREEZE now limits only surface temperature
202        (this means new output.txt for global_ocean.90x40x15,
203         global_ocean.cs32x15, and global_with_exf)
204    o added surface flux output variables to TIMEAVE_STATVARS
205    
206    checkpoint51n_pre
207    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
208    o added [#include "AD_CONFIG.h"] to all files that use the following
209      defines:
210      - ALLOW_ADJOINT_RUN
211      - ALLOW_TANGENTLINEAR_RUN
212      - ALLOW_ECCO_OPTIMIZATION
213    
214    checkpoint51m_post
215    o incorporating changes to get TAMC/TAF working in genmake2
216      - added new TAMC/TAF targets to the Makefile
217      - various cleanups related to package handling
218      - these changes should have no impact on the forward model
219    
220    checkpoint51l_post
221    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
222     - faster algorithm for cal_addtime.F
223     - higher precision arithmetic, where needed
224     - pkg/exf *startdate variables changed from calendar date to
225       model integration time
226    
227    checkpoint51l_pre
228    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
229    o enable to apply restoring on S & T only in a latitude band.
230    o update output (external_forcing_surf modif. change truncation errors)
231       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
232    
233    checkpoint51k_post
234    o change default to: useNHMTerms=.FALSE.
235     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
236       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
237     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
238        exp1, ideal_2D_oce
239     - change data file of oceanic exp (leave the results unchanged for now)
240       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
241    o set gravitySign automatically according to the vertical coordinate used
242      (and change sign: back to "logical" value: +1 when R increases downward)
243    o added an include barrier to the default CPP_OPTIONS.h and
244      removed the #include "PACKAGES_CONFIG.h" from it
245    o fix a bug in mom_fluxform (from chk51j_post)
246    
247    checkpoint51j_post
248    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
249    o adjusted some flow directives (dynamics, thermodynamics)
250    o added cubed-sphere case to test cost function
251    o heckpoint_lev?_directives.h now include
252      pkg-specific directives, whenever those are enabled.
253    o Moving pkg-specific flow directives to corresponding pkg
254      Moving pkg-specific differentiation list to corresponding pkg
255      Moving pkg-specific checkpoint-lev storing to corresponding pkg
256      ---> conventions are
257           - pkg_ad.flow
258           - pkg_ad_diff.list
259           - pkg_ad_check_lev?_dir.h
260    
261    checkpoint51i_post
262    o merge of the branch-genmake2
263      - knowingly breaks the older genmake
264      - automatic generation of all ALLOW_${PKG_NAME} defines
265      - new testreport supersedes older testscript
266    o large number of package inclusion and header cleanups
267    checkpoint51i_pre
268    
269    o new output for adjoin of global ocean vector invariant
270    o fix for checkpoint of thermodynamic seaice and bulk_force
271    o Steph gchem various cleanups
272    
273    checkpoint 51h_pre
274    o fixed some single quotes
275    o modify gchem pkg to be more versatile
276    o modifications to clean up dic pkg
277    o add pkg/cfc
278    
279    checkpoint51g_post
280    o provide links for ARPACK and ADM*TLM
281    o start removing verification/vero/
282    o update AD-related stuff
283      (in particular some IF-statements in model/src/ routines)
284    o adding to verification/global_ocean.90x40x15/ adjoint of
285      vector invariant setup
286    
287    checkpoint51f_post
288    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
289    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
290      of tracer Green's fucntions for ocean inversion project.
291    
292    checkpoint51f_pre
293    o Added on-the-fly spatial interpolation capability
294        "USE_EXF_INTERPOLATION" to pkg/exf.
295      - This is a temporary Cartesian-grid hack until
296        the super-duper ESMF coupler becomes available.
297      - See verification/global_with_exf/README for usage example.
298      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
299        flags and modified pkg/seaice accordingly.
300    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
301        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
302        non-local transport term.
303    
304    checkpoint51e_post
305    o pkg/mom_vecinv:
306      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
307      - add time-ave diagnostic of vorticity advection.
308    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
309    o atmospheric geopotential: - include water vapor effect;
310                                - use p^kappa in p* scaling.
311    o land pkg: read initial state from files.
312    o AIM : add stratospheric drag in the upper level
313    
314    checkpoint51d_post
315    o change function ILNBLNK (=> last non-blank char.) to return zero
316      (instead of the string length) when the string. char is empty
317    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
318    o modif's to restore TAMC compatibility
319      - avoid "_d" constructs in PARAMETER declarations
320      - avoid interrupting lines by comment lines
321    o Use cluster local disks for purely local I/O
322      vs. globally visible disks needed for ctrl stuff
323      (merged from ecco-branch)
324      - new active_file_loc... and mdsio_..._loc routines
325      - affected packages: autodiff, ctrl, grdchk, mdsio
326    
327    checkpoint51c_post
328    o introducing integer flag debugLevel
329      - debLevZero: suppress all output
330      - debLevA: standard
331      - debLevB: equivalent to current debugMode=.TRUE.
332    o introducing pathname variable mdsioLocalDir for mdsio
333      that can be specified at runtime
334      (relevant for cluster I/O to local disk)
335    `
336    >>>checkpoint51b_post
337    adjoint of ptracers
338    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
339    o extended state in checkpoint_lev?, etc.
340    o alternative ctrl/cost with tr1 or ptracer
341    o new comlev1_bibj_ptracers
342    o new ptracers.flow
343    o made ptracers_forcing same as external_forcing_s
344    o added verification for adjoint with ptracers
345      - adm. grdchk fail so far
346      - tlm. grdchk OK
347      - checked tapelev/comlev recomputations: OK
348    <<<checkpoint51b_pre
349    
350    checkpoint51a_post
351    o added code for biogeochemistry package
352      - new pkgs: dic, gchem
353      - new subroutine in ptracers
354    o modify code for biogeo packages
355      - in model/src and pkg/ptracers
356    
357    checkpoint51
358    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
359      - autodiff, ctrl, exf, grdchk, seaice
360      kept separate packages
361      - cost, ecco, obcs
362    o updating verification/internal_wave, verification/lab_sea
363      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
364    
365    checkpoint50i_post
366    o Preparing next differentiable checkpoint and sync
367      of MAIN vs. ecco-branch
368      - 1st step: this one is differentiable
369      - 2nd step: next(! not this) checkpoint will have updated packages
370                  from ecco-branch)
371    
372    checkpoint50h_post
373    o new package "land": provide surface BC for AIM.
374    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
375    o AIM: use true log-P extrapolation for near surface temp (= as in
376        F.Molteni paper) ; update aim.5l_cs output.
377    o New variable in PARM03 for more flexible pickups
378    o somewhat cleaned package initialisation sequence for
379      ctrl/ cost/ ecco/ in packages_... routines
380    
381    checkpoint50g_post
382    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
383      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
384      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
385        made the default because of faster convergence than ADI
386    
387    checkpoint50f_post
388    o exf totally restructured
389      - replaced all exf_set_ routines by one generic exf_set_gen.F
390        and made sure it's still differentiable
391      - split exf_getffields.F into new exf_bulkformulae.F
392      - exf_inscal_/exf_outscal_ suffixes consistent with field names
393      - updated adjoint/makefile and relevant verif. accordingly
394    
395    checkpoint50f_pre
396     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
397          + change Evap over land. (update aim.5l_cs output)
398     o added missing .cvsignores and made uniform across expts
399     o changed configuration of tidal_basin_2d expt
400     o added pkg/debug functions for tracing code in fatal crashes
401     o tidied pkg/monitor to use MONITOR_OPTIONS.h
402     o new fn in pkg/monitor to stop model if solution grows too big
403     o removed lots of single quotes from comments
404    
405    checkpoint50e_post
406    o make KPP work with PTRACERS
407     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
408       nearly a copy of kpp_transport_s
409     - there is no analogue to SurfaceTendencyS, so I have to use
410       gPtr(of the surface layer) instead
411    o add a new platform SunFire+mpi (SunFire 15000) to genmake
412    checkpoint50e_pre
413    
414    checkpoint50d_post
415    o change kpp output from multiple-record state files to single-record state
416      files analogous to write_state.F
417    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
418      analogous to the cg2d-related output.
419    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
420      so that writing to internal file fn (with length 512) fails.
421    checkpoint50d_pre
422    
423    checkpoint50c_post
424    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
425    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
426    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
427    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
428    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
429    
430    checkpoint50c_pre
431    Merging from release1_p13:
432    o bug fix for pkg/seaice dynamic solver
433    o Added SEAICE_initialHEFF to pkg/seaice
434    
435    checkpoint50b_post
436    o store u*,v* in gU,V instead of in guNm1,gvNm1
437    o in order to put the momForcing out of the Adams-Bashforth:
438      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
439      to timestep.F
440    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
441    o re-generate output for highly sensitive test-exp:
442       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
443    
444    checkpoint50b_pre
445    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
446    o corrected CPP option mismatch in exf_Bulk... functions for case
447      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
448    
449    checkpoint50a_post
450    o Bug fix for merging between c50 and KPP.
451      ikey was passed from thermodynamics to kpp_calc via
452      common block rather than being recomputed in kpp_calc,
453      in contradiction with new key itdkey.
454      New key ikppkey created, and tamc.h headers updated.
455    
456    checkpoint50
457    - 2nd step of merge with ecco-branch:
458      merge changes in ecco-branch back into main trunk
459    - bug fix in find_alpha
460    - more storing in gmredi_calc_tensor.F, kpp_routines.F
461    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
462    - merged some sliced AD support routines
463    
464    checkpoint49
465    merged from ecco-branch:
466    o exf:
467      - Enable initialisation of forcing fields to constant
468        (runtime) values.
469      - in exf_getffields.F
470        Reduce i-/j-loop to interior domain, discarding overlaps.
471        That also fixes wrong TAF-key computations for key_1, key_2
472        with bulf formulae.
473      - exf_init.F modify #ifdef for exf_init_evap
474      - exf_getffieldrec.F, ctrl_getrec.F
475        The following INT-usages are not safe:
476          fldsecs  = int(fldsecs/fldperiod)*fldperiod
477          fldcount = int(fldsecs/fldperiod) + 1
478        and were modified.
479    o autodiff: checkpoint_lev...
480      - updated storing for bulk formulae (some arrays were missing)
481      - added state for seaice package
482      - synchronized with main branch
483    o DIVA:
484      Modif.s in
485      - the_main_loop.F
486      - the_model_main.F
487      and added cost_final_restore.F cost_final_store.F
488      o With these changes, it is possible to fully separate
489        the first forward run to compute the cost function (mdthe_main_loop)
490        and adjoint runs over individual DIVA intervals (adthe_main_loop)
491        into separate model executions.
492        This enables better tuning of DIVA to given queue sizes.
493      o Loss of cost function value in consecutive DIVA runs is
494        fixed by storing to 'costfinal' file.
495      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
496        beginning/end of adjoint integration is accounted for.
497      The current changes apply to TAF-1.4.26.
498      TAF has one remaining bug, requiring one manual change
499      (see MITgcm manual).
500    o cal: synchronized between MAIN and ecco-branch
501    
502    checkpoint48i_post
503    o Changes to restore differentiability of code w.r.t. previous tag
504      (mostly adding new routines to make list and replacing
505      pressure by totPhiHyd).
506    o Updated and merged grdchk package
507      - has both ADM and TLM checks
508      - works for single- and multi-proc.
509      - output cleaned
510      - worked successfully for parallel DIVA
511    o genmake:
512      - Adding -platform=SP4
513      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
514    o Modif. for DIVA:
515      ctrl_unpack should not be called in intermediate DIVA interval.
516      (similar thing would apply for active files such as
517      tbar, sbar, psbar, which should not be reinitialised;
518      only relevant for ecco-branch)
519    
520    checkpoint48h_post
521    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
522    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
523    o Added SEAICE_initialHEFF to pkg/seaice
524    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
525    
526    checkpoint48g_post
527    --- EOS:
528    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
529      store total Potential in totPhyHyd for diagnostics & EOS.
530    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
531    --- Pressure/geopotential gradient:
532    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
533    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
534      ( changes results of global_ocean_pressure )
535    o NLFS + z-coord.: add eta*Rho' contribution.
536    o accurate phiHyd when using interface-W at the middle between 2 centers
537     ( changes results of ideal_2D_oce )
538    o includes r* 2nd term in potential gradient.
539    
540    checkpoint48f_post
541    Merging from release1_p12:
542    o Modifications for using pkg/exf with pkg/seaice
543      - improved description of the various forcing configurations
544      - added basic radiation bulk formulae to pkg/exf
545      - units/sign fix for evap computation in exf_getffields.F
546      - updated verification/global_with_exf/results/output.txt
547    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
548      (SBO) core products, including oceanic mass, center-of-mass,
549      angular, and bottom pressure (see pkg/sbo/README.sbo).
550    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
551      to avoid negative values in shallow regions.
552      - updated verification/natl_box/results/output.txt
553      - updated verification/lab_sea/results/output.txt
554    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
555    o Added useSingleCpuIO option (see PARAMS.h).
556    o Updated useSingleCpuIO option in mdsio_writefield.F to
557      work with multi-field files, e.g., for single-file pickup.
558    o pkg/seaice:
559      - bug fix in growth.F: QNET for no shortwave case
560      - added HeffFile for specifying initial sea-ice thickness
561      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
562    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
563      kpp_transport_t.F, forward_step.F, and the_main_loop.F
564    o pkg/seaice:
565      - adjoint-friendly modifications
566      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
567    
568    checkpoint48e_post
569    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
570    o dynamics: change definition of computational domain & adapt mom_fluxform
571      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
572    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
573        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
574        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
575        global_ocean.90x40x15 global_with_exf global_ocean_pressure
576        inverted_barometer solid-body.cs-32x32x1
577      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
578    
579    checkpoint48d_post
580    o in preparation for r*:
581     a) use pre-computed gradient of hydrostatic potential:
582        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
583     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
584        => affects results of glob_oce_pressure (different truncation error)  
585      update output.txt of ideal_2D_oce & global_ocean_pressure
586    
587    checkpoint48d_pre
588    o in preparation for r*:
589      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
590      pass the 2 comp. of the grad. as arguments to momentum S/R.
591      but for the moment, only used if it does not change the results.
592    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
593    
594    checkpoint48c_post
595    Modifications in treatment of initial flux forcing controls
596    to avoid extra storing of flux fields.
597    
598    checkpoint48c_pre
599    o Added tidal_basin_2d experiment (currently 1D!)
600    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
601    
602    checkpoint48b_post
603    o r* coordinate added in #ifdef NONLIN_FRSURF block.
604     (modification to pressure gradient not yet implemented)
605    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
606      (for U & V) that are used for vertical advection of momentum.
607    
608    checkpoint48a_post
609    o In preparation for r*, use temp. array to compute vertical transport
610       in flux-form momentum pkg. => change results of few test-exp.
611      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
612                        lab_sea, natl_box & plume_on_slope
613    
614    checkpoint48
615    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
616    
617    checkpoint47j_post
618    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
619    o moved adexch from forward_step to addummy_in_stepping
620    o added exch in ctrl_map_...
621    o aveFreq.=0. at end of cost_final to avoid overwrite in
622      reverse checkpointing loop
623    o Yet more changes in gmredi:
624      * adgmredi_calc_tensor
625        avoiding all recomputation of gmredi_slope_limit
626      * adgmredi_x/y/rtransport
627        added flag for excessive storing to avoid recomp. of
628        u/v/rtans, dTdx/y/z
629        -> this is not really necessary and very memory-consuming
630      * adgmredi_slope_psi:
631        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
632      * gmredi_slope_limit
633        re-activated full calculation of taperfct for case 'ac02'
634    o updating verification/ adjoints of carbon, global_ocean.90x40x15
635    
636    checkpoint47i_post
637    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
638    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
639      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
640    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
641    o gmredi: fix few bugs.
642    
643    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
644    This will be a good checkpoint to plug into the ecco-branch.
645    o few modif.'s to get latest version adjointed
646      (mainly kick out code in ini_linear_phisurf)
647    o modif's to run adjoint with exactConserv
648    o case GM_BOLUS_ADVEC should be cleaned
649      S/R gmredi_slope_psi should be cleaned
650    o verification/carbon now has exactConserv=.TRUE.
651    
652    checkpoint47g_post
653    o time-average AIM output: becomes independent from statvars time-average
654      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
655    o After TAF bug fix:
656      Tested adjoint of gmredi package.
657      Tests were done with checkpoint47 rather than with latest
658      checkpoint47f_post since the latter is broken for the adjoint
659      verification/carbon/ contains both ADM and TLM gradient checks.
660    Here they are, before they get changed/lost/stolen.
661    Mostly modif.'s to fix numerical sensitivities.
662    Gradient checks OK for
663    - GM_taper_scheme:
664      * clipping
665      * ac02
666      * linear
667      * glw91
668      * dm95
669      * ldd97
670    - GMREDI_OPTIONS:
671      * GM_VISBECK_VARIABLE_K
672      * GM_NON_UNITY_DIAGONAL
673      * GM_EXTRA_DIAGONAL
674      * GM_BOLUS_ADVEC
675    in conjunction with data.gmredi parameters to be checked in
676    in a few minutes under verification/carbon/code/
677    
678    checkpoint47f_post
679    Merging from release1_p10:
680    o modifications for using pkg/exf with pkg/seaice
681      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
682        and SEAICE_EXTERNAL_FLUXES
683      - pkg/exf CPP options EXF_READ_EVAP and
684        EXF_NO_BULK_COMPUTATIONS
685      - usage examples are Experiments 8 and 9 in
686        verification/lab_sea/README
687      - verification/lab_sea default experiment now uses
688        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
689    
690    checkpoint47e_post
691    o created a tag prior to creating a branch
692    
693    checkpoint47d_post
694    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
695      at the bottom boundary had an erroneous half slip boundary condition
696    o added bottom drag and no slip boundary condition capabilities to
697      oceanic pressure coordinates code
698    o added new verification experiment global_ocean_pressure, this experiment is
699      also described in the tutorial section of the manual
700    checkpoint47d_pre
701    
702    checkpoint47c_post
703    o Added a verification experiment for a global cubed-sphere ocean run
704      -  verification/global_ocean.cubed32x32x30
705      -  uses pkg/therm_seaice and pkg/bulk_forcing
706    
707    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
708    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
709      when using P-coordinate; only implemented for atmospheric config.
710    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
711      NOTES: requires option NONLIN_FRSURF to be "#define".
712    o update advect_xz/results/output.txt (left from checkpoint44g_post)
713    
714    checkpoint47b_post
715    Merging from release1_p9:
716    o pkg/seaice
717      - removed GOTO's and added taf directives
718      - double precision constants to reduce the g77 (Linux)
719        to F77 (SGI) differences reported in release1_p8
720    o tools/genmake
721      - added SGI options
722    o verification/testscript
723      - updated to that of checkpoint47a_post
724    o verification/global_ocean.90x40x15/input/eedata
725      - modified for SGI f77 compatibility
726    o verification/lab_sea
727      - added description of sea-ice model
728      - added missing matlab routines
729      - added test of thermodynamics parallelization
730    
731    checkpoint47a_post
732    o new pkg: aim_v23
733     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
734       for now, keep the same surface forcing as before.
735     - Part-Cell implemented into AIM; check that Heat & Water are conserved
736     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
737     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
738    o add diagnostic of surface correction term in monitor output
739    
740    o bulk_force and therm_seaice
741    - Two packages:  bulk_force (Bulk forcing)
742      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
743    - Earlier integration from Stephaine Dutkiewicz
744      and Patrick Heimbach.
745    - Two ifdef statements for compile time,
746       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
747    
748    checkpoint47
749    differentiable version of checkpoint46n_post
750    o bug fix in quasihydrostaticterms
751    o * "clean" adjoint code (in terms of extensive recomputations)
752        can now be obtained for all GMREDI options (i.e. for
753        - GM_VISBECK_VARIABLE_K
754        - GM_NON_UNITY_DIAGONAL
755        - GM_EXTRA_DIAGONAL
756        - GM_BOLUS_ADVEC )
757      * However, wrong gradient check problem remains unsolved.
758      * New CPP options have been introduced for different
759        tapering schemes
760    o external_fields_load now part of differentiation list
761    o pressure needs multiple storing;
762      would be nice to have store_pressure at beginning or
763      end of forward_step, e.g. by having phiHyd global (5-dim.)
764      (NB: pressure is needed for certain cases in find_rho,
765      which is also invoked through convective_adjustment).
766    o recomputations in find_rho for cases
767     'JMD95'/'UNESCO' or 'MDJWF' are OK.
768    o #define ATMOSPHERIC_LOADING should be differentiable
769    o ini_forcing shifted to begining of initialise_varia
770    o Incorporating QNVS line search routines into MITgcm
771      (this is separate code, and therefore not under pkg)
772      lsopt/, optim/
773    o Updated verification/carbon/
774      - #define GM_VISBECK_VARIABLE_K
775      - GM_taper_scheme    = 'ldd97'    
776    
777    checkpoint46n_post
778    Merging from release1_p8:
779    o verification/natl_box:
780      updating new external_fields_load routine
781    o New package: pkg/seaice
782      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
783      The sea-ice code is based on Hibler (1979-1980).
784      Two sea-ice dynamic solvers, ADI and LSR, are included.
785      In addition to computing prognostic sea-ice variables and diagnosing
786      the forcing/external data fields that drive the ocean model,
787      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
788      The implied surface heat flux is then stored in variable
789      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
790      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
791      non-local transport term.  Because this call precedes model
792      thermodynamics, temperature under sea-ice may not be "exactly" at
793      the freezing point by the time theta is dumped or time-averaged.
794      N.B.: fairly large differences in accuracy occur across
795            different platforms/compilers; comparison between
796            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
797            generated output gives:
798       T           S           U           V
799      C D M    c        m  s        m  s        m  s        m  s
800      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
801      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
802      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
803    
804      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
805    o GAD:
806      - generated new common blocks to account for call of
807        same gad routines with differing traceridentities
808        (needed to modify tracerIdentity indices in GAD.h)
809      - generated separate common blocks for case useCubedSphereExchange
810        (Department of Futurology)
811      - parameter lists to gmredi_?transport: added tracerIdentity
812      - added new key indices to tamc.h
813    o external_fields_load:
814      - added this routine to TAF list
815      - needed to make some common blocks global and additional storing
816        along the same lines as exf package (checkpoint_lev?_directives.h)
817    o exf:
818      updated external forcing package
819      - bug fixes carried over from ecco-branch
820        (missing OBCS_OPTIONS.h in two routines)
821      - enable easy to use "no forcing".
822      - added exf I/O for atmospheric loading
823      - added exf I/O for runoff data
824      - transfered scaling between exf <-> MITgcm to exf namelist
825    o Adding new verification experiment global_with_exf.
826      This verification experiment is almost identical to the
827      global_ocean.90x40x15 experiment, except that it uses
828      the exf (and cal) package instead of the
829      external_fields_load routine (cf README file).
830    
831    checkpoint46m_post
832    o modified testscript to return -- when there are no lines of "%MON" output
833    o added new flag "quasiHydrostatic" for QH mode
834      and new routine quasihydrostaticterms()
835    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
836      New routine: mom_u_coriolis_nh()
837    o fixed sign of non-hydrostatic metric terms in u and v equations.
838      Depend on correct sign of gravitySign.
839    o added work.pc* to .cvsignore in aim directories using ifc
840    o introduced flag for controllin non-hydrostatic metric terms
841    o removed gravitySign from PARM04
842    o switched to g77/ifc from pgf77 in aim experiments
843    
844    checkpoint46l_post
845    o made convective adjustment work with pressure coordinates:
846     - changed the direction of k-loop in convective_adjustment.F for the
847       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
848     - adjusted the reference pressure k-index in convective_adjustment.F
849     - adjusted the convection condition in convect.F (in analogy to
850       calc_ivdc.F)
851     - convective_adjustment no longer computes anything on the halos
852     - removed the warnings about negative salinity from find_rho.F and
853       find_alpha.F; instead the new routine look_for_neg_salinity, called
854       at the beginning of find_rho, find_alpha, and find_beta, does a
855       check of the entire slice, if CPP-option
856       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
857    checkpoint46l_pre
858    
859    checkpoint46k_post
860    o fixed the verification/global_ocean.90x40x15 experiment:
861     - new bathymetry (the world according to A., JMC, and M.)
862     - new initial fields and forcing fields (*.bin files)
863     - new POLY3.COEFFS (for the next release one should switch to a full
864       equation of state: JMD95P or MDJWF)
865     - fixed several errors and redundancies in the data file
866     - experiment uses looped cells
867     - added matlab directory with diagnostic scripts for plotting of output
868    
869    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
870     - read AIM physics parameters from a file (data.aimphys)
871     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
872    
873    checkpoint46j_post
874    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
875    o move wVel computation at the end of the time step, in S/R integr_continuity
876    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
877    o update timeave pkg for wVel diagnostic.
878    checkpoint46j_pre
879    
880    checkpoint46i_post
881    o Clean up AIM package (and keep the results unchanged):
882      include CPP_OPTION and use IMPLICT NONE in all routines ;
883      declare all the variables _RL ; use _d 0 for all numerical constants.
884      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
885    
886    checkpoint46h_post
887    o cleaned up the use of rhoNil and rhoConst.
888      - rhoNil should only appear in the LINEAR equation of state, everywhere
889        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
890        and the dynamical equations are all divided by rhoConst
891    o introduced new parameter rhoConstFresh, a reference density of fresh
892      water, to remove the fresh water flux's dependence on rhoNil. The default
893      value is 999.8 kg/m^3
894    o cleanup up external_forcing.F and external_forcing_surf.F
895      - can now be used by both OCEANIC and OCEANICP
896    checkpoint46h_pre
897    
898     Added code to convert surface volume flux (fresh water) into
899     a mass flux when using P coordinates in the ocean (OCEANICP).
900     Note: It assumes you have set rho0=rhoConst=density of fresh water.
901    
902    checkpoint46g_post
903    o Include a new diagnostic variable phiHydLow for the ocean model
904      - in z-coordinates, it is the bottom pressure anomaly
905      - in p-coordinates, it is the sea surface elevation
906      - in both cases, these variable have global drift, reflecting the mass
907        drift in z-coordinates and the volume drift in p-coordinates
908      - included time averaging for phiHydLow, be aware of the drift!
909    o depth-dependent computation of Bo_surf for pressure coordinates
910      in the ocean (buoyancyRelation='OCEANICP')
911      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
912        Theta, Salinity, and Pressure in the parameter list. This routine is
913        presently contained in find_rho.F. This routine does not give the
914        correct density for 'POLY3', which would be a z-dependent reference
915        density.
916    o cleaned up find_rho
917      - removed obsolete 'eqn' from the parameter list.
918    o added two new verification experiments: gop and goz
919      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
920    checkpoint46g_pre
921    
922    checkpoint46f_post
923    o Enable tangent linear (forward mode) gradient checks:
924      - extended active file handling to g_... files
925      - added TANGENT_SIMULATION to theSimulationMode
926      - extended grdchk package accordingly
927    o added tangent linear setup in verification/carbon/code_ftl
928    o added adjoint setup in verification/front_relax/code_ad
929    
930    checkpoint46e_post
931    o Added new equation of state -> MDJWF
932      - EOS of McDougall et al., 2002, JAOT, submitted
933      - caveat: the equation of state is only valid for a smaller (more
934        realistic?) range of values than JMD95P/Z and UNESCO
935      - added masks to the calculation of pressure in store_pressure
936      - added more check values for density in check_eos (ini_eos.F), some of
937        the old check values are out of the range of the MDJWF-eos, so don't
938        expect perfect matches for those
939    checkpoint46e_pre
940    
941    checkpoint46d_post
942    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
943      'OCEANICP', also initialised field pressure correctly in ini_eos in the
944      case of pressure coordinates. eosType='JMD95Z' in
945      combination with buoyancyRelation='OCEANICP' now causes an error.
946    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
947      in find_alpha/beta.
948    checkpoint46d_pre
949    
950    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
951      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
952    
953    checkpoint46c_post
954    o Changes necessary for ocean in p-coordinates
955     -  Added new buoyancy relation = 'OCEANICP'
956     -  Added new parameters = gravitySign (this used to be contained inside
957        the factor dRdZ which I added when we first switched to R coordinates).
958     X GM/Redi is not compatible (yet)
959     X bottom drag and no-slip need to be debugged.
960    checkpoint46c_pre
961    
962    checkpoint46b_post
963    o Added new equation of state -> JMD95Z and JMD95P
964      - EOS of Jackett and McDougall, 1995, JAOT
965      - moved all EOS parameters into EOS.h
966      - new routines ini_eos.F, store_pressure.F
967    o Added UNESCO EOS, but not recommended because it requires
968      in-situ temperature (see JMD95)
969    o Modified formatting for knudsen2.f in utils/knudsen2 and added
970      unesco.f to be used with POLY3
971    checkpoint46b_pre
972    
973    checkpoint46a_post
974    o Added (atmospheric) pressure loading
975      - new field in FFIELDS.h, etc...
976      - new cpp flag ATMOSPHERIC_LOADING
977    o Changed hFacC to _hFacC in calc_phi_hyd.F
978    o Added SHORTWAVE_HEATING to some files for consistency
979    checkpoint46a_pre
980    
981    checkpoint46
982    further merges from release1_p5
983    o new ctrl package
984      - adopted from ECCO environment to enable optimization
985      - added Eliassen Palm fluxes to controls
986    o added Eliassen Palm flux controls to gradient check package
987    o cost package
988      - Compatible with new ctrl package
989      - added Eliassen Palm cost hooks
990      - modif's of existing cost functions
991    o Adjoint-related bug fixes in kpp:
992      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
993      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
994    o autodiff package
995      - flow directives:
996        + new for S/R do_the_model_io
997        + enhanced for S/R checkpoint
998        + new gmredi.flow
999      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1000        disable adcommon.h/g_common.h by default.
1001      - fixed problem for adjoint of global_max
1002    o modified verification/carbon/
1003    o New setup for adjoint of global_ocean
1004    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1005    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1006    o incorporated hooks for sponge layer code (external_forcing.F)
1007    
1008    checkpoint45d_post
1009    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1010    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1011      (affects plume_on_slope "cg2d" output)
1012    o add new parameter deltaTfreesurf for free-surface time stepping
1013    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1014    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1015    o change phiMin in exp1 (to agree with documentation)
1016    o add new flags:
1017     - T,S forcing inside/outside Adams-Bashforth
1018     - turn off temp,salt advection and/or forcing
1019     - for each tracer, define internal flag for multiDimAdvection & A-B
1020    o monitor: change definition of KE to check conservation of Energy
1021    
1022    checkpoint45c_post
1023    o Removed f90 comments ("!")
1024    o Modified initialisations to enable exf package for MITgcm
1025      (without invoking ECCO_PACKAGE).
1026    o modifications to gradient check package (Martin Losch)
1027      - enable centered differences
1028      - modified format of standard output
1029    
1030    checkpoint45b_post
1031    o cleaned exchange calls in cg2d
1032    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1033    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1034      to configure barotropic setup (Martin Losch)
1035    o moved some initialisations within bi,bj loop in dynamics
1036      (TAF flow dependency)
1037    o in initialise_varia, moved call packages_init_variables
1038      before convective_adjustment_init
1039      (corresponding adjustment of TAF tape initialisation).
1040    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1041    
1042    checkpoint45a_post
1043    o compute Rho over the whole domain (extend iMin,jMin indices)
1044    o specific exchange for X-slice domain (case Ny=1)
1045    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1046    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1047    
1048    checkpoint44h_post = checkpoint45
1049    o Fix to restore differentiability:
1050      place at which packages_init_variables is called in
1051      initialise_varia is crucial for reverse control flow.
1052    o modifications in GMRedi to enable stable adjoint
1053      (corresponding modif's in thermodynamics, dynamics)
1054    o added missing hook for sponge layer code in external_forcing
1055    o modified test cost functions
1056    o storing in gad_advection (plus removal of write(0,*)!
1057    o missing headers TR1.h added in convective_adjustment routines
1058    o errorMessageUnit set non-equal zero in eeboot
1059      (conflict on some platforms, e.g. IBM SP3)
1060    o modified carbon verif.
1061    
1062    checkpoint44h_pre
1063    o vertical grid option: allow to put the Interface at the middle between
1064      2 cell-centers ; replace delZ in pkg/kpp by drF.
1065    o GM Advective form: Tracers are advected using the residual transport (=
1066      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1067    
1068    checkpoint44g_post
1069    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1070      results) ; ifdef missing in thermodynamics.F
1071    
1072    checkpoint44f_pre,checkpoint44f_post
1073    o added PTRACERS package
1074      This allows an arbitrary number of passive tracers to be integrated
1075      forward simultaneously with the dynamicaly model.
1076      + Implemented so far:
1077        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1078        - I/O and checkpointing
1079        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1080      + Not implemented so far:
1081        - KPP
1082        - OBCS
1083      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1084        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1085        line in data.pkg.
1086      + This package is disabled by default since it increases storage.
1087    
1088    
1089    o testscript: added -cleanup option
1090    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1091                 b) enable to filter 2D fields.
1092    
1093    checkpoint44e_pre,post
1094    o re-wrote convective adjustment to use pre-calculated weights
1095      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1096      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1097      Original calls to convect() still in place.
1098    
1099    chkpt44d_pre,post
1100    o added missing EXCLUDE_MONITOR flags
1101    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1102      (incompatible typ in MIN/MAX expressions caused problems
1103      on IBM SP3)
1104    o in genmake added variable MAKEDEPEND
1105      plus resetting for case SunOS
1106    o added timer_stats.c routine for IBM SP3
1107    o removed variables in dynamics
1108    !!! I forgot to create tag chkpt44d_pre !!!
1109    !!! But chkpt44d_pre = chkpt44c_post    !!!
1110    
1111    o real fresh water flux implemented with non-linear free-surface.
1112    
1113    chkpt44c_pre,post
1114    o few fix (mask in shap_s2, EmPmR in external_field_load,
1115      USE_NATURAL_BCS in solve_for_P);
1116    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1117    
1118    checkpoint44b_pre/_post
1119    o merge of relevant stuff from the ecco-branch:
1120      - genmake: removed $S64 overwrite for case SunOS
1121      - pkg/exf: update and corrections for field swapping and obcs
1122      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1123                  harmonized between ECCO and MITgcm
1124      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1125                      updated checkpointing_lev... lists for obcs
1126      - model/src: minor changes in forward_step, plot_field
1127                   added directive for divided adjoint in the_main_loop
1128      - pkg/mdsio: added mdsio_gl_slice
1129    
1130    o check parameters & config (chkpt44a_pre,post)
1131    o OBC and NonLin_FrSurf.
1132    
1133    checkpoint44
1134    o fix bug in mom_vi_del2uv
1135    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1136    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1137    o update AIM experiments (NCEP input files)
1138    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1139    o added some stuff for AD
1140    
1141    checkpoint43
1142    o added two new advection tests
1143    o added global 4x4 degree ocean test
1144    o added test of H&S94 with free surface on cube
1145    o some final mods for gradient check, adjoint,...
1146    
1147    checkpoint42
1148      Fixed AD-related problems:
1149    o Store directives up-to-date with re-arranged Adams-Bashforth
1150      (mainly thermodynamics.F)
1151    o New store directives for multi-dim. advection schemes
1152      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1153      * new common block and key passkey
1154      (mainly gad_advection.F)
1155    o Modified store directives for split of dynamics/thermodynamics
1156      for the case ALLOW_KPP
1157    o Cleaned argument list for timestep_tracer.F
1158    
1159    checkpoint41
1160    o re-formatted/added comments in prologues of key subroutines
1161      to work with protex
1162    
1163    checkpoint40
1164    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1165    o added FLT (floats) package from Arne along with demo. experiment
1166    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1167      implementation of forward-in-time forcing terms
1168    o more mods for non-linear free-surface including new variable
1169    o modified multi-dim method to work on cube
1170    o bug fix in KPP (from DM)
1171    
1172    checkpoint40pre9
1173    o added DST advection schemes
1174    o fix MPI bug on SGI's
1175    o modifications for non-linear free-surface
1176    o fixed conditionals for fixed flow/passive tracer only mode
1177    o added tension/strain form of stress tensor
1178    o changes to commenting of arguments for TAF/TAMC
1179    o added/updated many matlab scripts
1180    o added multi-dimensional advection method for tracers
1181      
1182    checkpoint40pre8
1183    o new package rw/
1184      Added method for dumping intermediate local arrays:
1185      mdsio_writetile - same as mdsio_writefield except works from inside
1186                        bi,bj loop
1187      mdsio_writelocal - same as mdsio_writetile except works for local
1188                         arrays
1189      write_local_r? - higher-level wrapper for mdsio_writelocal
1190      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1191      Example given at end of mom_vecinv.F that dumps some local arrays.
1192    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1193      control flux-form versus vector invariant code.
1194      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1195      or genmake -DISABLE ...
1196    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1197      (additional storing is now needed for case vecinv;
1198      currently nothing implemented to switch this storing off
1199      in case fluxform is used since no CPP flag available).
1200    
1201    checkpoint40pre7
1202    o bug fix in dynamics.F
1203      calc_viscosity called before k=1,Nr loop.
1204    o added some #ifdef's ALLOW_PASSIVE_TRACER
1205    o cleaned initialisations in ctrl_map_ini
1206      related to TAF
1207    
1208    checkpoint40pre6
1209    o split dynamics into thermodynamics & dynamics
1210    o corresponding split of calc_diffusivity into
1211      calc_diffusivity, calc_viscosity
1212      (kpp_calc_diff, kpp_calc_visc).
1213    o Added diffkr, kapgm to control variables
1214    o bug fix in gmredi_slope_limit for ldd97
1215    
1216    checkpoint40pre5
1217    o proper initialization of Adams-Bashforth time stepping
1218      + uses forward step for very first step of model (iter=0)
1219    o re-generated *all* output since almost all output is modified by this
1220      change (sorry but we've been putting this one off for about 2 years)
1221      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1222        *not* regenerated since they are already out of date and I don't
1223        want to create the impression that they are suddenly working.
1224    o removed KAP stuff for DEC's
1225    o modified/added many .cvsignore files in */code and */input
1226    o added new expt "solid-body.cs-32x32x1"
1227      + this uses an alternative form of ini_curvilinear_grid.F which
1228        is not necessarily any better than the current one...
1229    
1230  checkpoint40pre4  checkpoint40pre4
1231  o added re-initialisations of utrans,vtrans,rtrans in  o added re-initialisations of utrans,vtrans,rtrans in
1232    calc_common_factors which are crucial for TAF.    calc_common_factors which are crucial for TAF.

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