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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.230 by adcroft, Wed Dec 17 14:22:38 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 fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
7      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
8    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
9    
10    checkpoint52d_post
11    o re-tiled many expts to allow comparison in multi-processor mode
12      - updated output accordingly
13      - changed hs94.128x64x5 to use intial T from file rather than use the
14        random number generator
15    o add infrastructure in model routines for fizhi and gridalt packages
16    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
17    o changes to permit hi-res, cubed-sphere, configuration
18      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
19      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
20      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
21        of surface winds for the cube
22      (A verification experiment, based on global_ocean.cs32x15, but with
23       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
24       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
25       complete with example surface forcing files and matlab scripts to look
26       at the output and compare it with that of global_ocean.cs32x15.)
27    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
28       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
29       to conform to the common rule.
30    o check-in the first version of the coupler + interfaces for multi-components
31       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
32       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
33       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
34       - ocean and atmos. share the same horizontal grid (no interpolation).
35       - exchanges between component and coupler is done in forward_step
36    o new verification experiment, cpl_aim+ocn:
37       coupled ocean - AIM atmosphere on cs32 grid.
38    
39    checkpoint52d_pre
40    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
41    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
42    
43    checkpoint52c_post
44    o Fixing OPTIONS files for use of exf:
45      - ALLOW_ECCO not needed
46      - ECCO_CPPOPTIONS.h should not be included from
47        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
48        as has been the case in the past
49      - All cal/exf related options are currently set in
50        single header file. Should remain so until we
51        agree on a consistent new policy.
52    o Removed all CPP options for cal package.
53      cal has no more CPP options.
54    o modified STOREs in GAD_ADVECTION
55    o corrected key comp. for passkey
56    
57    checkpoint52b_post
58    o new version: "thsice" of thermodynamic sea-ice pkg:
59     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
60     - modify fluxes but do not change theta directly;
61     - light cleaning of bulk_force pkg (still needed with thsice).
62     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
63       + output_thsice.txt to test thsice & bulk_force pkgs.
64    o put back grid & coriolis monitor output.
65    checkpoint52b_pre
66    
67    o call "do_the_model_io" at the beginning (=> dump initial state)
68    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
69    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
70      (need info on NUMBER_OF_PTRACERS)
71    o missing PTRACERS headers in some routines
72    o default tamc.h in pkg/autodiff supposed to crash
73      to ensure proper customization
74    
75    checkpoint52a_post
76    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
77      - moved surfaceTendencyTice from pkg/seaice to main code
78      - subroutine FREEZE_SURFACE now limits only surface temperature
79        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
80        => new output.txt for global_ocean.cs32x15 & global_with_exf
81      - keep the old version of FREEZE for backward compatibility;
82        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
83      - corresponding modifs for TAF directives
84    o added surface flux output variables to TIMEAVE_STATVARS
85    o time-averaged output for pkg/ptracers
86    o fix problem with ECCO-related divided adjoint
87      snapshot file was missing some ad-variables,
88      but no warning issued by TAF
89    
90    checkpoint52a_pre
91    o some bug fixes for #undef REAL4_IS_SLOW
92    
93    checkpoint52 = ecco_c52_e35
94    o after testing adjoints of checkpoint51u_post
95    
96    checkpoint51u_post
97    o this is the post-merge tag of the ecco-branch
98      (needs another clean checkout and re-testing)
99    o various natl_box_adjoint configs and results
100      but no input fields
101    o obcs adjoint not yet merged!
102    o adding ECCO global 1x1 and 2x2 degree configs
103    o updated/extended some store directives for seaice
104    o pkg/ecco now containes ecco-specific part of cost function
105    o top level routines the_main_loop, forward_step
106      supersede those in model/src/
107      previous input data.cost now in data.ecco
108      (new namelist ecco_cost_nml)
109    o in ctrl/ cleaned some cross-dependencies and updated CPP options
110    
111    checkpoint51t_post
112    o this is the pre-merge tag of the ecco-branch
113    
114    checkpoint51s_post
115    o cleanup: removed various obsolete #define-s
116    o pkg/grdchk
117      - renamed 'ph-grd 3' to 'grad-res'
118      - merged from ecco-branch
119        (remaining bug fixes for obcs gradient checks)
120      - additional high-precision output for testreport
121        (grep for 'precision_grdchk_result')
122    
123    checkpoint51r_post
124    o cleaned up or removed CPP_OPTIONS.h files
125    o updated results for some of the tests to reflect the new
126      optfiles (-ieee: -O0 instead of -O3)
127    
128    checkpoint51q_post
129    o cd_code:
130      - moved cd_scheme.F -> cd_code_scheme.F
131      - separate read_checkpoint from cd_code_ini_vars.F
132      - separated cd_code part from write_checkpoint
133      - updated AD_SOURCE, generated .flow
134      - added CD_CODE_VARS.h to the_main_loop
135      - Moving cd_code specific store dir.s to pkg/cd_code
136    o ctrl package totally restructured
137      - pack/unpack now optional and decoupled from
138        xx_/adxx_ I/O
139      - ctrl_pack/unpack cleaned
140        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
141      - confined inclusion of AD_CONFIG.h to where necessary.
142    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
143    
144    checkpoint51p_post
145    o create initial cd_code package
146      - WARNING: the initialization of fields within packages
147        is broken because INI_FIELDS (where READ_CHECKPOINT is
148        called) is called *before* PACKAGES_INIT_VARIABLES.
149        This seems to be backwards since
150        1) its important to initially zero the entire field including
151           the "halo" region
152        2) zeroing needs to be done *before* reading pickup info
153           and the pickup call might or might not happen in any
154           particular run
155      - this needs an overhaul for R2
156    o cleanup verification/*/code/GMREDI_OPTIONS.h
157    o cleanup testreport
158    
159    checkpoint51o_post
160    o bringing AD-related verif's up to date with genmake2
161      - carbon/
162      - global_ocean.90x40x15/
163      - hs.94.1x64x5/
164      - (front_relax/ )
165    o (more) consistent directory structure for AD-related verif.'s
166    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
167    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
168    o bug fix in find_alpha.F for MDJWF:
169      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
170        change rho -> rho-rhoConst
171      - replace call find_rho to find_rhonum
172    o initialisation of rFlx extended to full array (required by TAF)
173      and shifted to thermodynamics
174    o removed PTRACERS.h in ptracers routine
175    o added surfacetendencyPtr to S/R parameter list pracers_forcing
176    o Correcting initialisations for fVerU, fVerV.
177    o helping TAF to recognize dependency on kUp for
178      fVerU, fVerV
179    o Replacing delZ by delR in pkg/ctrl/
180    checkpoint51o_pre
181    
182    o undid all of cp51 pending some cleanups and discussion
183    o added the [#include "AD_CONFIG.h"] statement to all files that need
184       it for adjoint/tl #defines
185     o re-worked the build logic in genmake2 to support AD_CONFIG.h
186     o removed tools/genmake since it no longer works
187    
188    checkpoint51n_post
189    o modifications to make FREEZE flux visible to pkg/kpp
190      - moved surfaceTendencyTice from pkg/seaice to main code
191      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
192      - subroutine FREEZE now limits only surface temperature
193        (this means new output.txt for global_ocean.90x40x15,
194         global_ocean.cs32x15, and global_with_exf)
195    o added surface flux output variables to TIMEAVE_STATVARS
196    
197    checkpoint51n_pre
198    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
199    o added [#include "AD_CONFIG.h"] to all files that use the following
200      defines:
201      - ALLOW_ADJOINT_RUN
202      - ALLOW_TANGENTLINEAR_RUN
203      - ALLOW_ECCO_OPTIMIZATION
204    
205    checkpoint51m_post
206    o incorporating changes to get TAMC/TAF working in genmake2
207      - added new TAMC/TAF targets to the Makefile
208      - various cleanups related to package handling
209      - these changes should have no impact on the forward model
210    
211    checkpoint51l_post
212    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
213     - faster algorithm for cal_addtime.F
214     - higher precision arithmetic, where needed
215     - pkg/exf *startdate variables changed from calendar date to
216       model integration time
217    
218    checkpoint51l_pre
219    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
220    o enable to apply restoring on S & T only in a latitude band.
221    o update output (external_forcing_surf modif. change truncation errors)
222       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
223    
224    checkpoint51k_post
225    o change default to: useNHMTerms=.FALSE.
226     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
227       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
228     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
229        exp1, ideal_2D_oce
230     - change data file of oceanic exp (leave the results unchanged for now)
231       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
232    o set gravitySign automatically according to the vertical coordinate used
233      (and change sign: back to "logical" value: +1 when R increases downward)
234    o added an include barrier to the default CPP_OPTIONS.h and
235      removed the #include "PACKAGES_CONFIG.h" from it
236    o fix a bug in mom_fluxform (from chk51j_post)
237    
238    checkpoint51j_post
239    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
240    o adjusted some flow directives (dynamics, thermodynamics)
241    o added cubed-sphere case to test cost function
242    o heckpoint_lev?_directives.h now include
243      pkg-specific directives, whenever those are enabled.
244    o Moving pkg-specific flow directives to corresponding pkg
245      Moving pkg-specific differentiation list to corresponding pkg
246      Moving pkg-specific checkpoint-lev storing to corresponding pkg
247      ---> conventions are
248           - pkg_ad.flow
249           - pkg_ad_diff.list
250           - pkg_ad_check_lev?_dir.h
251    
252    checkpoint51i_post
253    o merge of the branch-genmake2
254      - knowingly breaks the older genmake
255      - automatic generation of all ALLOW_${PKG_NAME} defines
256      - new testreport supersedes older testscript
257    o large number of package inclusion and header cleanups
258    checkpoint51i_pre
259    
260    o new output for adjoin of global ocean vector invariant
261    o fix for checkpoint of thermodynamic seaice and bulk_force
262    o Steph gchem various cleanups
263    
264    checkpoint 51h_pre
265    o fixed some single quotes
266    o modify gchem pkg to be more versatile
267    o modifications to clean up dic pkg
268    o add pkg/cfc
269    
270    checkpoint51g_post
271    o provide links for ARPACK and ADM*TLM
272    o start removing verification/vero/
273    o update AD-related stuff
274      (in particular some IF-statements in model/src/ routines)
275    o adding to verification/global_ocean.90x40x15/ adjoint of
276      vector invariant setup
277    
278    checkpoint51f_post
279    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
280    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
281      of tracer Green's fucntions for ocean inversion project.
282    
283    checkpoint51f_pre
284    o Added on-the-fly spatial interpolation capability
285        "USE_EXF_INTERPOLATION" to pkg/exf.
286      - This is a temporary Cartesian-grid hack until
287        the super-duper ESMF coupler becomes available.
288      - See verification/global_with_exf/README for usage example.
289      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
290        flags and modified pkg/seaice accordingly.
291    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
292        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
293        non-local transport term.
294    
295    checkpoint51e_post
296    o pkg/mom_vecinv:
297      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
298      - add time-ave diagnostic of vorticity advection.
299    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
300    o atmospheric geopotential: - include water vapor effect;
301                                - use p^kappa in p* scaling.
302    o land pkg: read initial state from files.
303    o AIM : add stratospheric drag in the upper level
304    
305    checkpoint51d_post
306    o change function ILNBLNK (=> last non-blank char.) to return zero
307      (instead of the string length) when the string. char is empty
308    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
309    o modif's to restore TAMC compatibility
310      - avoid "_d" constructs in PARAMETER declarations
311      - avoid interrupting lines by comment lines
312    o Use cluster local disks for purely local I/O
313      vs. globally visible disks needed for ctrl stuff
314      (merged from ecco-branch)
315      - new active_file_loc... and mdsio_..._loc routines
316      - affected packages: autodiff, ctrl, grdchk, mdsio
317    
318    checkpoint51c_post
319    o introducing integer flag debugLevel
320      - debLevZero: suppress all output
321      - debLevA: standard
322      - debLevB: equivalent to current debugMode=.TRUE.
323    o introducing pathname variable mdsioLocalDir for mdsio
324      that can be specified at runtime
325      (relevant for cluster I/O to local disk)
326    `
327    >>>checkpoint51b_post
328    adjoint of ptracers
329    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
330    o extended state in checkpoint_lev?, etc.
331    o alternative ctrl/cost with tr1 or ptracer
332    o new comlev1_bibj_ptracers
333    o new ptracers.flow
334    o made ptracers_forcing same as external_forcing_s
335    o added verification for adjoint with ptracers
336      - adm. grdchk fail so far
337      - tlm. grdchk OK
338      - checked tapelev/comlev recomputations: OK
339    <<<checkpoint51b_pre
340    
341    checkpoint51a_post
342    o added code for biogeochemistry package
343      - new pkgs: dic, gchem
344      - new subroutine in ptracers
345    o modify code for biogeo packages
346      - in model/src and pkg/ptracers
347    
348    checkpoint51
349    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
350      - autodiff, ctrl, exf, grdchk, seaice
351      kept separate packages
352      - cost, ecco, obcs
353    o updating verification/internal_wave, verification/lab_sea
354      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
355    
356    checkpoint50i_post
357    o Preparing next differentiable checkpoint and sync
358      of MAIN vs. ecco-branch
359      - 1st step: this one is differentiable
360      - 2nd step: next(! not this) checkpoint will have updated packages
361                  from ecco-branch)
362    
363    checkpoint50h_post
364    o new package "land": provide surface BC for AIM.
365    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
366    o AIM: use true log-P extrapolation for near surface temp (= as in
367        F.Molteni paper) ; update aim.5l_cs output.
368    o New variable in PARM03 for more flexible pickups
369    o somewhat cleaned package initialisation sequence for
370      ctrl/ cost/ ecco/ in packages_... routines
371    
372    checkpoint50g_post
373    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
374      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
375      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
376        made the default because of faster convergence than ADI
377    
378    checkpoint50f_post
379    o exf totally restructured
380      - replaced all exf_set_ routines by one generic exf_set_gen.F
381        and made sure it's still differentiable
382      - split exf_getffields.F into new exf_bulkformulae.F
383      - exf_inscal_/exf_outscal_ suffixes consistent with field names
384      - updated adjoint/makefile and relevant verif. accordingly
385    
386    checkpoint50f_pre
387     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
388          + change Evap over land. (update aim.5l_cs output)
389     o added missing .cvsignores and made uniform across expts
390     o changed configuration of tidal_basin_2d expt
391     o added pkg/debug functions for tracing code in fatal crashes
392     o tidied pkg/monitor to use MONITOR_OPTIONS.h
393     o new fn in pkg/monitor to stop model if solution grows too big
394     o removed lots of single quotes from comments
395    
396    checkpoint50e_post
397    o make KPP work with PTRACERS
398     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
399       nearly a copy of kpp_transport_s
400     - there is no analogue to SurfaceTendencyS, so I have to use
401       gPtr(of the surface layer) instead
402    o add a new platform SunFire+mpi (SunFire 15000) to genmake
403    checkpoint50e_pre
404    
405    checkpoint50d_post
406    o change kpp output from multiple-record state files to single-record state
407      files analogous to write_state.F
408    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
409      analogous to the cg2d-related output.
410    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
411      so that writing to internal file fn (with length 512) fails.
412    checkpoint50d_pre
413    
414    checkpoint50c_post
415    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
416    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
417    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
418    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
419    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
420    
421    checkpoint50c_pre
422    Merging from release1_p13:
423    o bug fix for pkg/seaice dynamic solver
424    o Added SEAICE_initialHEFF to pkg/seaice
425    
426    checkpoint50b_post
427    o store u*,v* in gU,V instead of in guNm1,gvNm1
428    o in order to put the momForcing out of the Adams-Bashforth:
429      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
430      to timestep.F
431    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
432    o re-generate output for highly sensitive test-exp:
433       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
434    
435    checkpoint50b_pre
436    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
437    o corrected CPP option mismatch in exf_Bulk... functions for case
438      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
439    
440    checkpoint50a_post
441    o Bug fix for merging between c50 and KPP.
442      ikey was passed from thermodynamics to kpp_calc via
443      common block rather than being recomputed in kpp_calc,
444      in contradiction with new key itdkey.
445      New key ikppkey created, and tamc.h headers updated.
446    
447    checkpoint50
448    - 2nd step of merge with ecco-branch:
449      merge changes in ecco-branch back into main trunk
450    - bug fix in find_alpha
451    - more storing in gmredi_calc_tensor.F, kpp_routines.F
452    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
453    - merged some sliced AD support routines
454    
455    checkpoint49
456    merged from ecco-branch:
457    o exf:
458      - Enable initialisation of forcing fields to constant
459        (runtime) values.
460      - in exf_getffields.F
461        Reduce i-/j-loop to interior domain, discarding overlaps.
462        That also fixes wrong TAF-key computations for key_1, key_2
463        with bulf formulae.
464      - exf_init.F modify #ifdef for exf_init_evap
465      - exf_getffieldrec.F, ctrl_getrec.F
466        The following INT-usages are not safe:
467          fldsecs  = int(fldsecs/fldperiod)*fldperiod
468          fldcount = int(fldsecs/fldperiod) + 1
469        and were modified.
470    o autodiff: checkpoint_lev...
471      - updated storing for bulk formulae (some arrays were missing)
472      - added state for seaice package
473      - synchronized with main branch
474    o DIVA:
475      Modif.s in
476      - the_main_loop.F
477      - the_model_main.F
478      and added cost_final_restore.F cost_final_store.F
479      o With these changes, it is possible to fully separate
480        the first forward run to compute the cost function (mdthe_main_loop)
481        and adjoint runs over individual DIVA intervals (adthe_main_loop)
482        into separate model executions.
483        This enables better tuning of DIVA to given queue sizes.
484      o Loss of cost function value in consecutive DIVA runs is
485        fixed by storing to 'costfinal' file.
486      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
487        beginning/end of adjoint integration is accounted for.
488      The current changes apply to TAF-1.4.26.
489      TAF has one remaining bug, requiring one manual change
490      (see MITgcm manual).
491    o cal: synchronized between MAIN and ecco-branch
492    
493    checkpoint48i_post
494    o Changes to restore differentiability of code w.r.t. previous tag
495      (mostly adding new routines to make list and replacing
496      pressure by totPhiHyd).
497    o Updated and merged grdchk package
498      - has both ADM and TLM checks
499      - works for single- and multi-proc.
500      - output cleaned
501      - worked successfully for parallel DIVA
502    o genmake:
503      - Adding -platform=SP4
504      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
505    o Modif. for DIVA:
506      ctrl_unpack should not be called in intermediate DIVA interval.
507      (similar thing would apply for active files such as
508      tbar, sbar, psbar, which should not be reinitialised;
509      only relevant for ecco-branch)
510    
511    checkpoint48h_post
512    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
513    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
514    o Added SEAICE_initialHEFF to pkg/seaice
515    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
516    
517    checkpoint48g_post
518    --- EOS:
519    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
520      store total Potential in totPhyHyd for diagnostics & EOS.
521    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
522    --- Pressure/geopotential gradient:
523    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
524    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
525      ( changes results of global_ocean_pressure )
526    o NLFS + z-coord.: add eta*Rho' contribution.
527    o accurate phiHyd when using interface-W at the middle between 2 centers
528     ( changes results of ideal_2D_oce )
529    o includes r* 2nd term in potential gradient.
530    
531    checkpoint48f_post
532    Merging from release1_p12:
533    o Modifications for using pkg/exf with pkg/seaice
534      - improved description of the various forcing configurations
535      - added basic radiation bulk formulae to pkg/exf
536      - units/sign fix for evap computation in exf_getffields.F
537      - updated verification/global_with_exf/results/output.txt
538    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
539      (SBO) core products, including oceanic mass, center-of-mass,
540      angular, and bottom pressure (see pkg/sbo/README.sbo).
541    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
542      to avoid negative values in shallow regions.
543      - updated verification/natl_box/results/output.txt
544      - updated verification/lab_sea/results/output.txt
545    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
546    o Added useSingleCpuIO option (see PARAMS.h).
547    o Updated useSingleCpuIO option in mdsio_writefield.F to
548      work with multi-field files, e.g., for single-file pickup.
549    o pkg/seaice:
550      - bug fix in growth.F: QNET for no shortwave case
551      - added HeffFile for specifying initial sea-ice thickness
552      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
553    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
554      kpp_transport_t.F, forward_step.F, and the_main_loop.F
555    o pkg/seaice:
556      - adjoint-friendly modifications
557      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
558    
559    checkpoint48e_post
560    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
561    o dynamics: change definition of computational domain & adapt mom_fluxform
562      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
563    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
564        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
565        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
566        global_ocean.90x40x15 global_with_exf global_ocean_pressure
567        inverted_barometer solid-body.cs-32x32x1
568      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
569    
570    checkpoint48d_post
571    o in preparation for r*:
572     a) use pre-computed gradient of hydrostatic potential:
573        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
574     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
575        => affects results of glob_oce_pressure (different truncation error)  
576      update output.txt of ideal_2D_oce & global_ocean_pressure
577    
578    checkpoint48d_pre
579    o in preparation for r*:
580      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
581      pass the 2 comp. of the grad. as arguments to momentum S/R.
582      but for the moment, only used if it does not change the results.
583    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
584    
585    checkpoint48c_post
586    Modifications in treatment of initial flux forcing controls
587    to avoid extra storing of flux fields.
588    
589    checkpoint48c_pre
590    o Added tidal_basin_2d experiment (currently 1D!)
591    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
592    
593    checkpoint48b_post
594    o r* coordinate added in #ifdef NONLIN_FRSURF block.
595     (modification to pressure gradient not yet implemented)
596    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
597      (for U & V) that are used for vertical advection of momentum.
598    
599    checkpoint48a_post
600    o In preparation for r*, use temp. array to compute vertical transport
601       in flux-form momentum pkg. => change results of few test-exp.
602      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
603                        lab_sea, natl_box & plume_on_slope
604    
605    checkpoint48
606    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
607    
608    checkpoint47j_post
609    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
610    o moved adexch from forward_step to addummy_in_stepping
611    o added exch in ctrl_map_...
612    o aveFreq.=0. at end of cost_final to avoid overwrite in
613      reverse checkpointing loop
614    o Yet more changes in gmredi:
615      * adgmredi_calc_tensor
616        avoiding all recomputation of gmredi_slope_limit
617      * adgmredi_x/y/rtransport
618        added flag for excessive storing to avoid recomp. of
619        u/v/rtans, dTdx/y/z
620        -> this is not really necessary and very memory-consuming
621      * adgmredi_slope_psi:
622        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
623      * gmredi_slope_limit
624        re-activated full calculation of taperfct for case 'ac02'
625    o updating verification/ adjoints of carbon, global_ocean.90x40x15
626    
627    checkpoint47i_post
628    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
629    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
630      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
631    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
632    o gmredi: fix few bugs.
633    
634    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
635    This will be a good checkpoint to plug into the ecco-branch.
636    o few modif.'s to get latest version adjointed
637      (mainly kick out code in ini_linear_phisurf)
638    o modif's to run adjoint with exactConserv
639    o case GM_BOLUS_ADVEC should be cleaned
640      S/R gmredi_slope_psi should be cleaned
641    o verification/carbon now has exactConserv=.TRUE.
642    
643    checkpoint47g_post
644    o time-average AIM output: becomes independent from statvars time-average
645      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
646    o After TAF bug fix:
647      Tested adjoint of gmredi package.
648      Tests were done with checkpoint47 rather than with latest
649      checkpoint47f_post since the latter is broken for the adjoint
650      verification/carbon/ contains both ADM and TLM gradient checks.
651    Here they are, before they get changed/lost/stolen.
652    Mostly modif.'s to fix numerical sensitivities.
653    Gradient checks OK for
654    - GM_taper_scheme:
655      * clipping
656      * ac02
657      * linear
658      * glw91
659      * dm95
660      * ldd97
661    - GMREDI_OPTIONS:
662      * GM_VISBECK_VARIABLE_K
663      * GM_NON_UNITY_DIAGONAL
664      * GM_EXTRA_DIAGONAL
665      * GM_BOLUS_ADVEC
666    in conjunction with data.gmredi parameters to be checked in
667    in a few minutes under verification/carbon/code/
668    
669    checkpoint47f_post
670    Merging from release1_p10:
671    o modifications for using pkg/exf with pkg/seaice
672      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
673        and SEAICE_EXTERNAL_FLUXES
674      - pkg/exf CPP options EXF_READ_EVAP and
675        EXF_NO_BULK_COMPUTATIONS
676      - usage examples are Experiments 8 and 9 in
677        verification/lab_sea/README
678      - verification/lab_sea default experiment now uses
679        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
680    
681    checkpoint47e_post
682    o created a tag prior to creating a branch
683    
684    checkpoint47d_post
685    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
686      at the bottom boundary had an erroneous half slip boundary condition
687    o added bottom drag and no slip boundary condition capabilities to
688      oceanic pressure coordinates code
689    o added new verification experiment global_ocean_pressure, this experiment is
690      also described in the tutorial section of the manual
691    checkpoint47d_pre
692    
693    checkpoint47c_post
694    o Added a verification experiment for a global cubed-sphere ocean run
695      -  verification/global_ocean.cubed32x32x30
696      -  uses pkg/therm_seaice and pkg/bulk_forcing
697    
698    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
699    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
700      when using P-coordinate; only implemented for atmospheric config.
701    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
702      NOTES: requires option NONLIN_FRSURF to be "#define".
703    o update advect_xz/results/output.txt (left from checkpoint44g_post)
704    
705    checkpoint47b_post
706    Merging from release1_p9:
707    o pkg/seaice
708      - removed GOTO's and added taf directives
709      - double precision constants to reduce the g77 (Linux)
710        to F77 (SGI) differences reported in release1_p8
711    o tools/genmake
712      - added SGI options
713    o verification/testscript
714      - updated to that of checkpoint47a_post
715    o verification/global_ocean.90x40x15/input/eedata
716      - modified for SGI f77 compatibility
717    o verification/lab_sea
718      - added description of sea-ice model
719      - added missing matlab routines
720      - added test of thermodynamics parallelization
721    
722    checkpoint47a_post
723    o new pkg: aim_v23
724     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
725       for now, keep the same surface forcing as before.
726     - Part-Cell implemented into AIM; check that Heat & Water are conserved
727     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
728     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
729    o add diagnostic of surface correction term in monitor output
730    
731    o bulk_force and therm_seaice
732    - Two packages:  bulk_force (Bulk forcing)
733      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
734    - Earlier integration from Stephaine Dutkiewicz
735      and Patrick Heimbach.
736    - Two ifdef statements for compile time,
737       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
738    
739    checkpoint47
740    differentiable version of checkpoint46n_post
741    o bug fix in quasihydrostaticterms
742    o * "clean" adjoint code (in terms of extensive recomputations)
743        can now be obtained for all GMREDI options (i.e. for
744        - GM_VISBECK_VARIABLE_K
745        - GM_NON_UNITY_DIAGONAL
746        - GM_EXTRA_DIAGONAL
747        - GM_BOLUS_ADVEC )
748      * However, wrong gradient check problem remains unsolved.
749      * New CPP options have been introduced for different
750        tapering schemes
751    o external_fields_load now part of differentiation list
752    o pressure needs multiple storing;
753      would be nice to have store_pressure at beginning or
754      end of forward_step, e.g. by having phiHyd global (5-dim.)
755      (NB: pressure is needed for certain cases in find_rho,
756      which is also invoked through convective_adjustment).
757    o recomputations in find_rho for cases
758     'JMD95'/'UNESCO' or 'MDJWF' are OK.
759    o #define ATMOSPHERIC_LOADING should be differentiable
760    o ini_forcing shifted to begining of initialise_varia
761    o Incorporating QNVS line search routines into MITgcm
762      (this is separate code, and therefore not under pkg)
763      lsopt/, optim/
764    o Updated verification/carbon/
765      - #define GM_VISBECK_VARIABLE_K
766      - GM_taper_scheme    = 'ldd97'    
767    
768    checkpoint46n_post
769    Merging from release1_p8:
770    o verification/natl_box:
771      updating new external_fields_load routine
772    o New package: pkg/seaice
773      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
774      The sea-ice code is based on Hibler (1979-1980).
775      Two sea-ice dynamic solvers, ADI and LSR, are included.
776      In addition to computing prognostic sea-ice variables and diagnosing
777      the forcing/external data fields that drive the ocean model,
778      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
779      The implied surface heat flux is then stored in variable
780      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
781      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
782      non-local transport term.  Because this call precedes model
783      thermodynamics, temperature under sea-ice may not be "exactly" at
784      the freezing point by the time theta is dumped or time-averaged.
785      N.B.: fairly large differences in accuracy occur across
786            different platforms/compilers; comparison between
787            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
788            generated output gives:
789       T           S           U           V
790      C D M    c        m  s        m  s        m  s        m  s
791      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
792      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
793      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
794    
795      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
796    o GAD:
797      - generated new common blocks to account for call of
798        same gad routines with differing traceridentities
799        (needed to modify tracerIdentity indices in GAD.h)
800      - generated separate common blocks for case useCubedSphereExchange
801        (Department of Futurology)
802      - parameter lists to gmredi_?transport: added tracerIdentity
803      - added new key indices to tamc.h
804    o external_fields_load:
805      - added this routine to TAF list
806      - needed to make some common blocks global and additional storing
807        along the same lines as exf package (checkpoint_lev?_directives.h)
808    o exf:
809      updated external forcing package
810      - bug fixes carried over from ecco-branch
811        (missing OBCS_OPTIONS.h in two routines)
812      - enable easy to use "no forcing".
813      - added exf I/O for atmospheric loading
814      - added exf I/O for runoff data
815      - transfered scaling between exf <-> MITgcm to exf namelist
816    o Adding new verification experiment global_with_exf.
817      This verification experiment is almost identical to the
818      global_ocean.90x40x15 experiment, except that it uses
819      the exf (and cal) package instead of the
820      external_fields_load routine (cf README file).
821    
822    checkpoint46m_post
823    o modified testscript to return -- when there are no lines of "%MON" output
824    o added new flag "quasiHydrostatic" for QH mode
825      and new routine quasihydrostaticterms()
826    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
827      New routine: mom_u_coriolis_nh()
828    o fixed sign of non-hydrostatic metric terms in u and v equations.
829      Depend on correct sign of gravitySign.
830    o added work.pc* to .cvsignore in aim directories using ifc
831    o introduced flag for controllin non-hydrostatic metric terms
832    o removed gravitySign from PARM04
833    o switched to g77/ifc from pgf77 in aim experiments
834    
835    checkpoint46l_post
836    o made convective adjustment work with pressure coordinates:
837     - changed the direction of k-loop in convective_adjustment.F for the
838       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
839     - adjusted the reference pressure k-index in convective_adjustment.F
840     - adjusted the convection condition in convect.F (in analogy to
841       calc_ivdc.F)
842     - convective_adjustment no longer computes anything on the halos
843     - removed the warnings about negative salinity from find_rho.F and
844       find_alpha.F; instead the new routine look_for_neg_salinity, called
845       at the beginning of find_rho, find_alpha, and find_beta, does a
846       check of the entire slice, if CPP-option
847       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
848    checkpoint46l_pre
849    
850    checkpoint46k_post
851    o fixed the verification/global_ocean.90x40x15 experiment:
852     - new bathymetry (the world according to A., JMC, and M.)
853     - new initial fields and forcing fields (*.bin files)
854     - new POLY3.COEFFS (for the next release one should switch to a full
855       equation of state: JMD95P or MDJWF)
856     - fixed several errors and redundancies in the data file
857     - experiment uses looped cells
858     - added matlab directory with diagnostic scripts for plotting of output
859    
860    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
861     - read AIM physics parameters from a file (data.aimphys)
862     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
863    
864    checkpoint46j_post
865    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
866    o move wVel computation at the end of the time step, in S/R integr_continuity
867    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
868    o update timeave pkg for wVel diagnostic.
869    checkpoint46j_pre
870    
871    checkpoint46i_post
872    o Clean up AIM package (and keep the results unchanged):
873      include CPP_OPTION and use IMPLICT NONE in all routines ;
874      declare all the variables _RL ; use _d 0 for all numerical constants.
875      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
876    
877    checkpoint46h_post
878    o cleaned up the use of rhoNil and rhoConst.
879      - rhoNil should only appear in the LINEAR equation of state, everywhere
880        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
881        and the dynamical equations are all divided by rhoConst
882    o introduced new parameter rhoConstFresh, a reference density of fresh
883      water, to remove the fresh water flux's dependence on rhoNil. The default
884      value is 999.8 kg/m^3
885    o cleanup up external_forcing.F and external_forcing_surf.F
886      - can now be used by both OCEANIC and OCEANICP
887    checkpoint46h_pre
888    
889     Added code to convert surface volume flux (fresh water) into
890     a mass flux when using P coordinates in the ocean (OCEANICP).
891     Note: It assumes you have set rho0=rhoConst=density of fresh water.
892    
893    checkpoint46g_post
894    o Include a new diagnostic variable phiHydLow for the ocean model
895      - in z-coordinates, it is the bottom pressure anomaly
896      - in p-coordinates, it is the sea surface elevation
897      - in both cases, these variable have global drift, reflecting the mass
898        drift in z-coordinates and the volume drift in p-coordinates
899      - included time averaging for phiHydLow, be aware of the drift!
900    o depth-dependent computation of Bo_surf for pressure coordinates
901      in the ocean (buoyancyRelation='OCEANICP')
902      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
903        Theta, Salinity, and Pressure in the parameter list. This routine is
904        presently contained in find_rho.F. This routine does not give the
905        correct density for 'POLY3', which would be a z-dependent reference
906        density.
907    o cleaned up find_rho
908      - removed obsolete 'eqn' from the parameter list.
909    o added two new verification experiments: gop and goz
910      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
911    checkpoint46g_pre
912    
913    checkpoint46f_post
914    o Enable tangent linear (forward mode) gradient checks:
915      - extended active file handling to g_... files
916      - added TANGENT_SIMULATION to theSimulationMode
917      - extended grdchk package accordingly
918    o added tangent linear setup in verification/carbon/code_ftl
919    o added adjoint setup in verification/front_relax/code_ad
920    
921    checkpoint46e_post
922    o Added new equation of state -> MDJWF
923      - EOS of McDougall et al., 2002, JAOT, submitted
924      - caveat: the equation of state is only valid for a smaller (more
925        realistic?) range of values than JMD95P/Z and UNESCO
926      - added masks to the calculation of pressure in store_pressure
927      - added more check values for density in check_eos (ini_eos.F), some of
928        the old check values are out of the range of the MDJWF-eos, so don't
929        expect perfect matches for those
930    checkpoint46e_pre
931    
932    checkpoint46d_post
933    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
934      'OCEANICP', also initialised field pressure correctly in ini_eos in the
935      case of pressure coordinates. eosType='JMD95Z' in
936      combination with buoyancyRelation='OCEANICP' now causes an error.
937    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
938      in find_alpha/beta.
939    checkpoint46d_pre
940    
941    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
942      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
943    
944    checkpoint46c_post
945    o Changes necessary for ocean in p-coordinates
946     -  Added new buoyancy relation = 'OCEANICP'
947     -  Added new parameters = gravitySign (this used to be contained inside
948        the factor dRdZ which I added when we first switched to R coordinates).
949     X GM/Redi is not compatible (yet)
950     X bottom drag and no-slip need to be debugged.
951    checkpoint46c_pre
952    
953    checkpoint46b_post
954    o Added new equation of state -> JMD95Z and JMD95P
955      - EOS of Jackett and McDougall, 1995, JAOT
956      - moved all EOS parameters into EOS.h
957      - new routines ini_eos.F, store_pressure.F
958    o Added UNESCO EOS, but not recommended because it requires
959      in-situ temperature (see JMD95)
960    o Modified formatting for knudsen2.f in utils/knudsen2 and added
961      unesco.f to be used with POLY3
962    checkpoint46b_pre
963    
964    checkpoint46a_post
965    o Added (atmospheric) pressure loading
966      - new field in FFIELDS.h, etc...
967      - new cpp flag ATMOSPHERIC_LOADING
968    o Changed hFacC to _hFacC in calc_phi_hyd.F
969    o Added SHORTWAVE_HEATING to some files for consistency
970    checkpoint46a_pre
971    
972    checkpoint46
973    further merges from release1_p5
974    o new ctrl package
975      - adopted from ECCO environment to enable optimization
976      - added Eliassen Palm fluxes to controls
977    o added Eliassen Palm flux controls to gradient check package
978    o cost package
979      - Compatible with new ctrl package
980      - added Eliassen Palm cost hooks
981      - modif's of existing cost functions
982    o Adjoint-related bug fixes in kpp:
983      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
984      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
985    o autodiff package
986      - flow directives:
987        + new for S/R do_the_model_io
988        + enhanced for S/R checkpoint
989        + new gmredi.flow
990      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
991        disable adcommon.h/g_common.h by default.
992      - fixed problem for adjoint of global_max
993    o modified verification/carbon/
994    o New setup for adjoint of global_ocean
995    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
996    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
997    o incorporated hooks for sponge layer code (external_forcing.F)
998    
999    checkpoint45d_post
1000    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1001    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1002      (affects plume_on_slope "cg2d" output)
1003    o add new parameter deltaTfreesurf for free-surface time stepping
1004    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1005    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1006    o change phiMin in exp1 (to agree with documentation)
1007    o add new flags:
1008     - T,S forcing inside/outside Adams-Bashforth
1009     - turn off temp,salt advection and/or forcing
1010     - for each tracer, define internal flag for multiDimAdvection & A-B
1011    o monitor: change definition of KE to check conservation of Energy
1012    
1013    checkpoint45c_post
1014    o Removed f90 comments ("!")
1015    o Modified initialisations to enable exf package for MITgcm
1016      (without invoking ECCO_PACKAGE).
1017    o modifications to gradient check package (Martin Losch)
1018      - enable centered differences
1019      - modified format of standard output
1020    
1021    checkpoint45b_post
1022    o cleaned exchange calls in cg2d
1023    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1024    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1025      to configure barotropic setup (Martin Losch)
1026    o moved some initialisations within bi,bj loop in dynamics
1027      (TAF flow dependency)
1028    o in initialise_varia, moved call packages_init_variables
1029      before convective_adjustment_init
1030      (corresponding adjustment of TAF tape initialisation).
1031    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1032    
1033    checkpoint45a_post
1034    o compute Rho over the whole domain (extend iMin,jMin indices)
1035    o specific exchange for X-slice domain (case Ny=1)
1036    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1037    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1038    
1039    checkpoint44h_post = checkpoint45
1040    o Fix to restore differentiability:
1041      place at which packages_init_variables is called in
1042      initialise_varia is crucial for reverse control flow.
1043    o modifications in GMRedi to enable stable adjoint
1044      (corresponding modif's in thermodynamics, dynamics)
1045    o added missing hook for sponge layer code in external_forcing
1046    o modified test cost functions
1047    o storing in gad_advection (plus removal of write(0,*)!
1048    o missing headers TR1.h added in convective_adjustment routines
1049    o errorMessageUnit set non-equal zero in eeboot
1050      (conflict on some platforms, e.g. IBM SP3)
1051    o modified carbon verif.
1052    
1053    checkpoint44h_pre
1054    o vertical grid option: allow to put the Interface at the middle between
1055      2 cell-centers ; replace delZ in pkg/kpp by drF.
1056    o GM Advective form: Tracers are advected using the residual transport (=
1057      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1058    
1059    checkpoint44g_post
1060    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1061      results) ; ifdef missing in thermodynamics.F
1062    
1063    checkpoint44f_pre,checkpoint44f_post
1064    o added PTRACERS package
1065      This allows an arbitrary number of passive tracers to be integrated
1066      forward simultaneously with the dynamicaly model.
1067      + Implemented so far:
1068        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1069        - I/O and checkpointing
1070        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1071      + Not implemented so far:
1072        - KPP
1073        - OBCS
1074      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1075        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1076        line in data.pkg.
1077      + This package is disabled by default since it increases storage.
1078    
1079    
1080    o testscript: added -cleanup option
1081    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1082                 b) enable to filter 2D fields.
1083    
1084    checkpoint44e_pre,post
1085    o re-wrote convective adjustment to use pre-calculated weights
1086      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1087      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1088      Original calls to convect() still in place.
1089    
1090    chkpt44d_pre,post
1091    o added missing EXCLUDE_MONITOR flags
1092    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1093      (incompatible typ in MIN/MAX expressions caused problems
1094      on IBM SP3)
1095    o in genmake added variable MAKEDEPEND
1096      plus resetting for case SunOS
1097    o added timer_stats.c routine for IBM SP3
1098    o removed variables in dynamics
1099    !!! I forgot to create tag chkpt44d_pre !!!
1100    !!! But chkpt44d_pre = chkpt44c_post    !!!
1101    
1102    o real fresh water flux implemented with non-linear free-surface.
1103    
1104    chkpt44c_pre,post
1105    o few fix (mask in shap_s2, EmPmR in external_field_load,
1106      USE_NATURAL_BCS in solve_for_P);
1107    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1108    
1109    checkpoint44b_pre/_post
1110    o merge of relevant stuff from the ecco-branch:
1111      - genmake: removed $S64 overwrite for case SunOS
1112      - pkg/exf: update and corrections for field swapping and obcs
1113      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1114                  harmonized between ECCO and MITgcm
1115      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1116                      updated checkpointing_lev... lists for obcs
1117      - model/src: minor changes in forward_step, plot_field
1118                   added directive for divided adjoint in the_main_loop
1119      - pkg/mdsio: added mdsio_gl_slice
1120    
1121    o check parameters & config (chkpt44a_pre,post)
1122    o OBC and NonLin_FrSurf.
1123    
1124    checkpoint44
1125    o fix bug in mom_vi_del2uv
1126    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1127    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1128    o update AIM experiments (NCEP input files)
1129    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1130    o added some stuff for AD
1131    
1132    checkpoint43
1133    o added two new advection tests
1134    o added global 4x4 degree ocean test
1135    o added test of H&S94 with free surface on cube
1136    o some final mods for gradient check, adjoint,...
1137    
1138    checkpoint42
1139      Fixed AD-related problems:
1140    o Store directives up-to-date with re-arranged Adams-Bashforth
1141      (mainly thermodynamics.F)
1142    o New store directives for multi-dim. advection schemes
1143      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1144      * new common block and key passkey
1145      (mainly gad_advection.F)
1146    o Modified store directives for split of dynamics/thermodynamics
1147      for the case ALLOW_KPP
1148    o Cleaned argument list for timestep_tracer.F
1149    
1150    checkpoint41
1151    o re-formatted/added comments in prologues of key subroutines
1152      to work with protex
1153    
1154    checkpoint40
1155    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1156    o added FLT (floats) package from Arne along with demo. experiment
1157    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1158      implementation of forward-in-time forcing terms
1159    o more mods for non-linear free-surface including new variable
1160    o modified multi-dim method to work on cube
1161    o bug fix in KPP (from DM)
1162    
1163    checkpoint40pre9
1164    o added DST advection schemes
1165    o fix MPI bug on SGI's
1166    o modifications for non-linear free-surface
1167    o fixed conditionals for fixed flow/passive tracer only mode
1168    o added tension/strain form of stress tensor
1169    o changes to commenting of arguments for TAF/TAMC
1170    o added/updated many matlab scripts
1171    o added multi-dimensional advection method for tracers
1172      
1173    checkpoint40pre8
1174    o new package rw/
1175      Added method for dumping intermediate local arrays:
1176      mdsio_writetile - same as mdsio_writefield except works from inside
1177                        bi,bj loop
1178      mdsio_writelocal - same as mdsio_writetile except works for local
1179                         arrays
1180      write_local_r? - higher-level wrapper for mdsio_writelocal
1181      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1182      Example given at end of mom_vecinv.F that dumps some local arrays.
1183    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1184      control flux-form versus vector invariant code.
1185      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1186      or genmake -DISABLE ...
1187    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1188      (additional storing is now needed for case vecinv;
1189      currently nothing implemented to switch this storing off
1190      in case fluxform is used since no CPP flag available).
1191    
1192    checkpoint40pre7
1193    o bug fix in dynamics.F
1194      calc_viscosity called before k=1,Nr loop.
1195    o added some #ifdef's ALLOW_PASSIVE_TRACER
1196    o cleaned initialisations in ctrl_map_ini
1197      related to TAF
1198    
1199    checkpoint40pre6
1200    o split dynamics into thermodynamics & dynamics
1201    o corresponding split of calc_diffusivity into
1202      calc_diffusivity, calc_viscosity
1203      (kpp_calc_diff, kpp_calc_visc).
1204    o Added diffkr, kapgm to control variables
1205    o bug fix in gmredi_slope_limit for ldd97
1206    
1207    checkpoint40pre5
1208    o proper initialization of Adams-Bashforth time stepping
1209      + uses forward step for very first step of model (iter=0)
1210    o re-generated *all* output since almost all output is modified by this
1211      change (sorry but we've been putting this one off for about 2 years)
1212      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1213        *not* regenerated since they are already out of date and I don't
1214        want to create the impression that they are suddenly working.
1215    o removed KAP stuff for DEC's
1216    o modified/added many .cvsignore files in */code and */input
1217    o added new expt "solid-body.cs-32x32x1"
1218      + this uses an alternative form of ini_curvilinear_grid.F which
1219        is not necessarily any better than the current one...
1220    
1221    checkpoint40pre4
1222    o added re-initialisations of utrans,vtrans,rtrans in
1223      calc_common_factors which are crucial for TAF.
1224    o extended iMin,jMin range for calc_common_factors,
1225      calc_diffusivity
1226    o added option ALLOW_PASSIVE_TRACER
1227    o a few minor updates and fixes
1228    
1229    checkpoint40pre3
1230    o created calc_gtr1.F for gad package
1231    o split the_main_loop and re-introduced forward_step
1232    o some recomputations of nIter0 for TAMC
1233    
1234    checkpoint40pre2
1235    o Updated to latest branch of AJA, JMC
1236    o Added gradient check package
1237    o Added routines for passive tracer handling
1238    o Added carbon sequestration sensitivity experiment
1239    
1240    checkpoint39
1241     o Modifications and fixes to support TAMC
1242       (mainly missing or wrong directives)
1243     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1244       in addummy_in_stepping
1245     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1246     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1247     o Included following packages:
1248       cal: calendar
1249       exf: external forcing
1250       ecco: essential routines to control use of cal, exf
1251             (NB: this is not the full ECCO environment)
1252     o disabled some packages by default in genmake
1253    
1254    checkpoint38
1255     o see notes_c37_adj.txt
1256     o corrected wrong layer index in external_forcing_t
1257     o replaced the_main_loop/forward_step by the_main_loop
1258     o removed forceoutput from write_state
1259       (replaced criteria for initial/final state)
1260     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1261    
1262    checkpoint37
1263     o mdsio.F routine split and packaged in pkg/mdsio
1264       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1265        used unless genmake -disable=mdsio)
1266     o allow a more precise surface-geopotential gradient for the atmosphere
1267       taking into account the change in space of Alpha (=1/rho) at the surface.
1268     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1269       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1270     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1271       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1272       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1273     o Time-Average diagnostics defined as a pseudo package "timeave".
1274     o pickup files : old pickup (before c35) did not work with new code (c35
1275       and after) unless activating 2 commented lines in initialise-varia.
1276     o Non-Hydrostatic pickup file Pb fixed.
1277     o bug with Rigid-lid version (since c35) fixed.  
1278    
1279    checkpoint36
1280     o implement Crank-Nickelson barotropic time-stepping
1281     o recover Time-Average diagnostics
1282     o fix Pb in checkpoint (PR#19)
1283     o AIM become a standard package ; clean unused CPP_kees
1284    
1285    checkpoint35
1286     o subtantial rewrite of dynamics.f
1287     o allows staggered time-stepping
1288     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1289     o added bottom drag (linear + quadratic)
1290    
1291    checkpoint34
1292     o Modified exchange routines for correct reverse simulation.
1293     o Added verification output to comply with bug fix in impldiff.F
1294       as of c33 (exp2, natl_box).
1295     o Corrected store directives in dynamics.F
1296     o Corrected array boundaries in impldiff.F
1297     o Corrected array dimensions in gmredi.
1298       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1299     o Added routine GLOBAL_SUM_INT to global_sum.F
1300     o Added mdsio_gl.F for ECCO purposes.
1301    
1302  checkpoint33  checkpoint33
1303   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
1304   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

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