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revision 1.10 by cnh, Wed Jul 8 15:40:09 1998 UTC revision 1.229 by jmc, Wed Dec 17 05:39:01 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 add infrastructure in model routines for fizhi and gridalt packages
12    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
13    o changes to permit hi-res, cubed-sphere, configuration
14      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
15      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
16      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
17        of surface winds for the cube
18      (A verification experiment, based on global_ocean.cs32x15, but with
19       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
20       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
21       complete with example surface forcing files and matlab scripts to look
22       at the output and compare it with that of global_ocean.cs32x15.)
23    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
24       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
25       to conform to the common rule.
26    o check-in the first version of the coupler + interfaces for multi-components
27       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
28       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
29       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
30       - ocean and atmos. share the same horizontal grid (no interpolation).
31       - exchanges between component and coupler is done in forward_step
32    o new verification experiment, cpl_aim+ocn:
33       coupled ocean - AIM atmosphere on cs32 grid.
34    
35    checkpoint52d_pre
36    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
37    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
38    
39    checkpoint52c_post
40    o Fixing OPTIONS files for use of exf:
41      - ALLOW_ECCO not needed
42      - ECCO_CPPOPTIONS.h should not be included from
43        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
44        as has been the case in the past
45      - All cal/exf related options are currently set in
46        single header file. Should remain so until we
47        agree on a consistent new policy.
48    o Removed all CPP options for cal package.
49      cal has no more CPP options.
50    o modified STOREs in GAD_ADVECTION
51    o corrected key comp. for passkey
52    
53    checkpoint52b_post
54    o new version: "thsice" of thermodynamic sea-ice pkg:
55     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
56     - modify fluxes but do not change theta directly;
57     - light cleaning of bulk_force pkg (still needed with thsice).
58     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
59       + output_thsice.txt to test thsice & bulk_force pkgs.
60    o put back grid & coriolis monitor output.
61    checkpoint52b_pre
62    
63    o call "do_the_model_io" at the beginning (=> dump initial state)
64    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
65    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
66      (need info on NUMBER_OF_PTRACERS)
67    o missing PTRACERS headers in some routines
68    o default tamc.h in pkg/autodiff supposed to crash
69      to ensure proper customization
70    
71    checkpoint52a_post
72    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
73      - moved surfaceTendencyTice from pkg/seaice to main code
74      - subroutine FREEZE_SURFACE now limits only surface temperature
75        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
76        => new output.txt for global_ocean.cs32x15 & global_with_exf
77      - keep the old version of FREEZE for backward compatibility;
78        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
79      - corresponding modifs for TAF directives
80    o added surface flux output variables to TIMEAVE_STATVARS
81    o time-averaged output for pkg/ptracers
82    o fix problem with ECCO-related divided adjoint
83      snapshot file was missing some ad-variables,
84      but no warning issued by TAF
85    
86    checkpoint52a_pre
87    o some bug fixes for #undef REAL4_IS_SLOW
88    
89    checkpoint52 = ecco_c52_e35
90    o after testing adjoints of checkpoint51u_post
91    
92    checkpoint51u_post
93    o this is the post-merge tag of the ecco-branch
94      (needs another clean checkout and re-testing)
95    o various natl_box_adjoint configs and results
96      but no input fields
97    o obcs adjoint not yet merged!
98    o adding ECCO global 1x1 and 2x2 degree configs
99    o updated/extended some store directives for seaice
100    o pkg/ecco now containes ecco-specific part of cost function
101    o top level routines the_main_loop, forward_step
102      supersede those in model/src/
103      previous input data.cost now in data.ecco
104      (new namelist ecco_cost_nml)
105    o in ctrl/ cleaned some cross-dependencies and updated CPP options
106    
107    checkpoint51t_post
108    o this is the pre-merge tag of the ecco-branch
109    
110    checkpoint51s_post
111    o cleanup: removed various obsolete #define-s
112    o pkg/grdchk
113      - renamed 'ph-grd 3' to 'grad-res'
114      - merged from ecco-branch
115        (remaining bug fixes for obcs gradient checks)
116      - additional high-precision output for testreport
117        (grep for 'precision_grdchk_result')
118    
119    checkpoint51r_post
120    o cleaned up or removed CPP_OPTIONS.h files
121    o updated results for some of the tests to reflect the new
122      optfiles (-ieee: -O0 instead of -O3)
123    
124    checkpoint51q_post
125    o cd_code:
126      - moved cd_scheme.F -> cd_code_scheme.F
127      - separate read_checkpoint from cd_code_ini_vars.F
128      - separated cd_code part from write_checkpoint
129      - updated AD_SOURCE, generated .flow
130      - added CD_CODE_VARS.h to the_main_loop
131      - Moving cd_code specific store dir.s to pkg/cd_code
132    o ctrl package totally restructured
133      - pack/unpack now optional and decoupled from
134        xx_/adxx_ I/O
135      - ctrl_pack/unpack cleaned
136        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
137      - confined inclusion of AD_CONFIG.h to where necessary.
138    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
139    
140    checkpoint51p_post
141    o create initial cd_code package
142      - WARNING: the initialization of fields within packages
143        is broken because INI_FIELDS (where READ_CHECKPOINT is
144        called) is called *before* PACKAGES_INIT_VARIABLES.
145        This seems to be backwards since
146        1) its important to initially zero the entire field including
147           the "halo" region
148        2) zeroing needs to be done *before* reading pickup info
149           and the pickup call might or might not happen in any
150           particular run
151      - this needs an overhaul for R2
152    o cleanup verification/*/code/GMREDI_OPTIONS.h
153    o cleanup testreport
154    
155    checkpoint51o_post
156    o bringing AD-related verif's up to date with genmake2
157      - carbon/
158      - global_ocean.90x40x15/
159      - hs.94.1x64x5/
160      - (front_relax/ )
161    o (more) consistent directory structure for AD-related verif.'s
162    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
163    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
164    o bug fix in find_alpha.F for MDJWF:
165      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
166        change rho -> rho-rhoConst
167      - replace call find_rho to find_rhonum
168    o initialisation of rFlx extended to full array (required by TAF)
169      and shifted to thermodynamics
170    o removed PTRACERS.h in ptracers routine
171    o added surfacetendencyPtr to S/R parameter list pracers_forcing
172    o Correcting initialisations for fVerU, fVerV.
173    o helping TAF to recognize dependency on kUp for
174      fVerU, fVerV
175    o Replacing delZ by delR in pkg/ctrl/
176    checkpoint51o_pre
177    
178    o undid all of cp51 pending some cleanups and discussion
179    o added the [#include "AD_CONFIG.h"] statement to all files that need
180       it for adjoint/tl #defines
181     o re-worked the build logic in genmake2 to support AD_CONFIG.h
182     o removed tools/genmake since it no longer works
183    
184    checkpoint51n_post
185    o modifications to make FREEZE flux visible to pkg/kpp
186      - moved surfaceTendencyTice from pkg/seaice to main code
187      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
188      - subroutine FREEZE now limits only surface temperature
189        (this means new output.txt for global_ocean.90x40x15,
190         global_ocean.cs32x15, and global_with_exf)
191    o added surface flux output variables to TIMEAVE_STATVARS
192    
193    checkpoint51n_pre
194    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
195    o added [#include "AD_CONFIG.h"] to all files that use the following
196      defines:
197      - ALLOW_ADJOINT_RUN
198      - ALLOW_TANGENTLINEAR_RUN
199      - ALLOW_ECCO_OPTIMIZATION
200    
201    checkpoint51m_post
202    o incorporating changes to get TAMC/TAF working in genmake2
203      - added new TAMC/TAF targets to the Makefile
204      - various cleanups related to package handling
205      - these changes should have no impact on the forward model
206    
207    checkpoint51l_post
208    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
209     - faster algorithm for cal_addtime.F
210     - higher precision arithmetic, where needed
211     - pkg/exf *startdate variables changed from calendar date to
212       model integration time
213    
214    checkpoint51l_pre
215    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
216    o enable to apply restoring on S & T only in a latitude band.
217    o update output (external_forcing_surf modif. change truncation errors)
218       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
219    
220    checkpoint51k_post
221    o change default to: useNHMTerms=.FALSE.
222     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
223       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
224     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
225        exp1, ideal_2D_oce
226     - change data file of oceanic exp (leave the results unchanged for now)
227       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
228    o set gravitySign automatically according to the vertical coordinate used
229      (and change sign: back to "logical" value: +1 when R increases downward)
230    o added an include barrier to the default CPP_OPTIONS.h and
231      removed the #include "PACKAGES_CONFIG.h" from it
232    o fix a bug in mom_fluxform (from chk51j_post)
233    
234    checkpoint51j_post
235    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
236    o adjusted some flow directives (dynamics, thermodynamics)
237    o added cubed-sphere case to test cost function
238    o heckpoint_lev?_directives.h now include
239      pkg-specific directives, whenever those are enabled.
240    o Moving pkg-specific flow directives to corresponding pkg
241      Moving pkg-specific differentiation list to corresponding pkg
242      Moving pkg-specific checkpoint-lev storing to corresponding pkg
243      ---> conventions are
244           - pkg_ad.flow
245           - pkg_ad_diff.list
246           - pkg_ad_check_lev?_dir.h
247    
248    checkpoint51i_post
249    o merge of the branch-genmake2
250      - knowingly breaks the older genmake
251      - automatic generation of all ALLOW_${PKG_NAME} defines
252      - new testreport supersedes older testscript
253    o large number of package inclusion and header cleanups
254    checkpoint51i_pre
255    
256    o new output for adjoin of global ocean vector invariant
257    o fix for checkpoint of thermodynamic seaice and bulk_force
258    o Steph gchem various cleanups
259    
260    checkpoint 51h_pre
261    o fixed some single quotes
262    o modify gchem pkg to be more versatile
263    o modifications to clean up dic pkg
264    o add pkg/cfc
265    
266    checkpoint51g_post
267    o provide links for ARPACK and ADM*TLM
268    o start removing verification/vero/
269    o update AD-related stuff
270      (in particular some IF-statements in model/src/ routines)
271    o adding to verification/global_ocean.90x40x15/ adjoint of
272      vector invariant setup
273    
274    checkpoint51f_post
275    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
276    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
277      of tracer Green's fucntions for ocean inversion project.
278    
279    checkpoint51f_pre
280    o Added on-the-fly spatial interpolation capability
281        "USE_EXF_INTERPOLATION" to pkg/exf.
282      - This is a temporary Cartesian-grid hack until
283        the super-duper ESMF coupler becomes available.
284      - See verification/global_with_exf/README for usage example.
285      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
286        flags and modified pkg/seaice accordingly.
287    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
288        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
289        non-local transport term.
290    
291    checkpoint51e_post
292    o pkg/mom_vecinv:
293      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
294      - add time-ave diagnostic of vorticity advection.
295    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
296    o atmospheric geopotential: - include water vapor effect;
297                                - use p^kappa in p* scaling.
298    o land pkg: read initial state from files.
299    o AIM : add stratospheric drag in the upper level
300    
301    checkpoint51d_post
302    o change function ILNBLNK (=> last non-blank char.) to return zero
303      (instead of the string length) when the string. char is empty
304    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
305    o modif's to restore TAMC compatibility
306      - avoid "_d" constructs in PARAMETER declarations
307      - avoid interrupting lines by comment lines
308    o Use cluster local disks for purely local I/O
309      vs. globally visible disks needed for ctrl stuff
310      (merged from ecco-branch)
311      - new active_file_loc... and mdsio_..._loc routines
312      - affected packages: autodiff, ctrl, grdchk, mdsio
313    
314    checkpoint51c_post
315    o introducing integer flag debugLevel
316      - debLevZero: suppress all output
317      - debLevA: standard
318      - debLevB: equivalent to current debugMode=.TRUE.
319    o introducing pathname variable mdsioLocalDir for mdsio
320      that can be specified at runtime
321      (relevant for cluster I/O to local disk)
322    `
323    >>>checkpoint51b_post
324    adjoint of ptracers
325    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
326    o extended state in checkpoint_lev?, etc.
327    o alternative ctrl/cost with tr1 or ptracer
328    o new comlev1_bibj_ptracers
329    o new ptracers.flow
330    o made ptracers_forcing same as external_forcing_s
331    o added verification for adjoint with ptracers
332      - adm. grdchk fail so far
333      - tlm. grdchk OK
334      - checked tapelev/comlev recomputations: OK
335    <<<checkpoint51b_pre
336    
337    checkpoint51a_post
338    o added code for biogeochemistry package
339      - new pkgs: dic, gchem
340      - new subroutine in ptracers
341    o modify code for biogeo packages
342      - in model/src and pkg/ptracers
343    
344    checkpoint51
345    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
346      - autodiff, ctrl, exf, grdchk, seaice
347      kept separate packages
348      - cost, ecco, obcs
349    o updating verification/internal_wave, verification/lab_sea
350      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
351    
352    checkpoint50i_post
353    o Preparing next differentiable checkpoint and sync
354      of MAIN vs. ecco-branch
355      - 1st step: this one is differentiable
356      - 2nd step: next(! not this) checkpoint will have updated packages
357                  from ecco-branch)
358    
359    checkpoint50h_post
360    o new package "land": provide surface BC for AIM.
361    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
362    o AIM: use true log-P extrapolation for near surface temp (= as in
363        F.Molteni paper) ; update aim.5l_cs output.
364    o New variable in PARM03 for more flexible pickups
365    o somewhat cleaned package initialisation sequence for
366      ctrl/ cost/ ecco/ in packages_... routines
367    
368    checkpoint50g_post
369    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
370      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
371      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
372        made the default because of faster convergence than ADI
373    
374    checkpoint50f_post
375    o exf totally restructured
376      - replaced all exf_set_ routines by one generic exf_set_gen.F
377        and made sure it's still differentiable
378      - split exf_getffields.F into new exf_bulkformulae.F
379      - exf_inscal_/exf_outscal_ suffixes consistent with field names
380      - updated adjoint/makefile and relevant verif. accordingly
381    
382    checkpoint50f_pre
383     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
384          + change Evap over land. (update aim.5l_cs output)
385     o added missing .cvsignores and made uniform across expts
386     o changed configuration of tidal_basin_2d expt
387     o added pkg/debug functions for tracing code in fatal crashes
388     o tidied pkg/monitor to use MONITOR_OPTIONS.h
389     o new fn in pkg/monitor to stop model if solution grows too big
390     o removed lots of single quotes from comments
391    
392    checkpoint50e_post
393    o make KPP work with PTRACERS
394     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
395       nearly a copy of kpp_transport_s
396     - there is no analogue to SurfaceTendencyS, so I have to use
397       gPtr(of the surface layer) instead
398    o add a new platform SunFire+mpi (SunFire 15000) to genmake
399    checkpoint50e_pre
400    
401    checkpoint50d_post
402    o change kpp output from multiple-record state files to single-record state
403      files analogous to write_state.F
404    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
405      analogous to the cg2d-related output.
406    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
407      so that writing to internal file fn (with length 512) fails.
408    checkpoint50d_pre
409    
410    checkpoint50c_post
411    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
412    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
413    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
414    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
415    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
416    
417    checkpoint50c_pre
418    Merging from release1_p13:
419    o bug fix for pkg/seaice dynamic solver
420    o Added SEAICE_initialHEFF to pkg/seaice
421    
422    checkpoint50b_post
423    o store u*,v* in gU,V instead of in guNm1,gvNm1
424    o in order to put the momForcing out of the Adams-Bashforth:
425      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
426      to timestep.F
427    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
428    o re-generate output for highly sensitive test-exp:
429       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
430    
431    checkpoint50b_pre
432    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
433    o corrected CPP option mismatch in exf_Bulk... functions for case
434      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
435    
436    checkpoint50a_post
437    o Bug fix for merging between c50 and KPP.
438      ikey was passed from thermodynamics to kpp_calc via
439      common block rather than being recomputed in kpp_calc,
440      in contradiction with new key itdkey.
441      New key ikppkey created, and tamc.h headers updated.
442    
443    checkpoint50
444    - 2nd step of merge with ecco-branch:
445      merge changes in ecco-branch back into main trunk
446    - bug fix in find_alpha
447    - more storing in gmredi_calc_tensor.F, kpp_routines.F
448    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
449    - merged some sliced AD support routines
450    
451    checkpoint49
452    merged from ecco-branch:
453    o exf:
454      - Enable initialisation of forcing fields to constant
455        (runtime) values.
456      - in exf_getffields.F
457        Reduce i-/j-loop to interior domain, discarding overlaps.
458        That also fixes wrong TAF-key computations for key_1, key_2
459        with bulf formulae.
460      - exf_init.F modify #ifdef for exf_init_evap
461      - exf_getffieldrec.F, ctrl_getrec.F
462        The following INT-usages are not safe:
463          fldsecs  = int(fldsecs/fldperiod)*fldperiod
464          fldcount = int(fldsecs/fldperiod) + 1
465        and were modified.
466    o autodiff: checkpoint_lev...
467      - updated storing for bulk formulae (some arrays were missing)
468      - added state for seaice package
469      - synchronized with main branch
470    o DIVA:
471      Modif.s in
472      - the_main_loop.F
473      - the_model_main.F
474      and added cost_final_restore.F cost_final_store.F
475      o With these changes, it is possible to fully separate
476        the first forward run to compute the cost function (mdthe_main_loop)
477        and adjoint runs over individual DIVA intervals (adthe_main_loop)
478        into separate model executions.
479        This enables better tuning of DIVA to given queue sizes.
480      o Loss of cost function value in consecutive DIVA runs is
481        fixed by storing to 'costfinal' file.
482      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
483        beginning/end of adjoint integration is accounted for.
484      The current changes apply to TAF-1.4.26.
485      TAF has one remaining bug, requiring one manual change
486      (see MITgcm manual).
487    o cal: synchronized between MAIN and ecco-branch
488    
489    checkpoint48i_post
490    o Changes to restore differentiability of code w.r.t. previous tag
491      (mostly adding new routines to make list and replacing
492      pressure by totPhiHyd).
493    o Updated and merged grdchk package
494      - has both ADM and TLM checks
495      - works for single- and multi-proc.
496      - output cleaned
497      - worked successfully for parallel DIVA
498    o genmake:
499      - Adding -platform=SP4
500      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
501    o Modif. for DIVA:
502      ctrl_unpack should not be called in intermediate DIVA interval.
503      (similar thing would apply for active files such as
504      tbar, sbar, psbar, which should not be reinitialised;
505      only relevant for ecco-branch)
506    
507    checkpoint48h_post
508    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
509    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
510    o Added SEAICE_initialHEFF to pkg/seaice
511    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
512    
513    checkpoint48g_post
514    --- EOS:
515    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
516      store total Potential in totPhyHyd for diagnostics & EOS.
517    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
518    --- Pressure/geopotential gradient:
519    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
520    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
521      ( changes results of global_ocean_pressure )
522    o NLFS + z-coord.: add eta*Rho' contribution.
523    o accurate phiHyd when using interface-W at the middle between 2 centers
524     ( changes results of ideal_2D_oce )
525    o includes r* 2nd term in potential gradient.
526    
527    checkpoint48f_post
528    Merging from release1_p12:
529    o Modifications for using pkg/exf with pkg/seaice
530      - improved description of the various forcing configurations
531      - added basic radiation bulk formulae to pkg/exf
532      - units/sign fix for evap computation in exf_getffields.F
533      - updated verification/global_with_exf/results/output.txt
534    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
535      (SBO) core products, including oceanic mass, center-of-mass,
536      angular, and bottom pressure (see pkg/sbo/README.sbo).
537    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
538      to avoid negative values in shallow regions.
539      - updated verification/natl_box/results/output.txt
540      - updated verification/lab_sea/results/output.txt
541    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
542    o Added useSingleCpuIO option (see PARAMS.h).
543    o Updated useSingleCpuIO option in mdsio_writefield.F to
544      work with multi-field files, e.g., for single-file pickup.
545    o pkg/seaice:
546      - bug fix in growth.F: QNET for no shortwave case
547      - added HeffFile for specifying initial sea-ice thickness
548      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
549    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
550      kpp_transport_t.F, forward_step.F, and the_main_loop.F
551    o pkg/seaice:
552      - adjoint-friendly modifications
553      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
554    
555    checkpoint48e_post
556    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
557    o dynamics: change definition of computational domain & adapt mom_fluxform
558      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
559    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
560        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
561        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
562        global_ocean.90x40x15 global_with_exf global_ocean_pressure
563        inverted_barometer solid-body.cs-32x32x1
564      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
565    
566    checkpoint48d_post
567    o in preparation for r*:
568     a) use pre-computed gradient of hydrostatic potential:
569        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
570     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
571        => affects results of glob_oce_pressure (different truncation error)  
572      update output.txt of ideal_2D_oce & global_ocean_pressure
573    
574    checkpoint48d_pre
575    o in preparation for r*:
576      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
577      pass the 2 comp. of the grad. as arguments to momentum S/R.
578      but for the moment, only used if it does not change the results.
579    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
580    
581    checkpoint48c_post
582    Modifications in treatment of initial flux forcing controls
583    to avoid extra storing of flux fields.
584    
585    checkpoint48c_pre
586    o Added tidal_basin_2d experiment (currently 1D!)
587    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
588    
589    checkpoint48b_post
590    o r* coordinate added in #ifdef NONLIN_FRSURF block.
591     (modification to pressure gradient not yet implemented)
592    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
593      (for U & V) that are used for vertical advection of momentum.
594    
595    checkpoint48a_post
596    o In preparation for r*, use temp. array to compute vertical transport
597       in flux-form momentum pkg. => change results of few test-exp.
598      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
599                        lab_sea, natl_box & plume_on_slope
600    
601    checkpoint48
602    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
603    
604    checkpoint47j_post
605    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
606    o moved adexch from forward_step to addummy_in_stepping
607    o added exch in ctrl_map_...
608    o aveFreq.=0. at end of cost_final to avoid overwrite in
609      reverse checkpointing loop
610    o Yet more changes in gmredi:
611      * adgmredi_calc_tensor
612        avoiding all recomputation of gmredi_slope_limit
613      * adgmredi_x/y/rtransport
614        added flag for excessive storing to avoid recomp. of
615        u/v/rtans, dTdx/y/z
616        -> this is not really necessary and very memory-consuming
617      * adgmredi_slope_psi:
618        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
619      * gmredi_slope_limit
620        re-activated full calculation of taperfct for case 'ac02'
621    o updating verification/ adjoints of carbon, global_ocean.90x40x15
622    
623    checkpoint47i_post
624    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
625    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
626      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
627    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
628    o gmredi: fix few bugs.
629    
630    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
631    This will be a good checkpoint to plug into the ecco-branch.
632    o few modif.'s to get latest version adjointed
633      (mainly kick out code in ini_linear_phisurf)
634    o modif's to run adjoint with exactConserv
635    o case GM_BOLUS_ADVEC should be cleaned
636      S/R gmredi_slope_psi should be cleaned
637    o verification/carbon now has exactConserv=.TRUE.
638    
639    checkpoint47g_post
640    o time-average AIM output: becomes independent from statvars time-average
641      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
642    o After TAF bug fix:
643      Tested adjoint of gmredi package.
644      Tests were done with checkpoint47 rather than with latest
645      checkpoint47f_post since the latter is broken for the adjoint
646      verification/carbon/ contains both ADM and TLM gradient checks.
647    Here they are, before they get changed/lost/stolen.
648    Mostly modif.'s to fix numerical sensitivities.
649    Gradient checks OK for
650    - GM_taper_scheme:
651      * clipping
652      * ac02
653      * linear
654      * glw91
655      * dm95
656      * ldd97
657    - GMREDI_OPTIONS:
658      * GM_VISBECK_VARIABLE_K
659      * GM_NON_UNITY_DIAGONAL
660      * GM_EXTRA_DIAGONAL
661      * GM_BOLUS_ADVEC
662    in conjunction with data.gmredi parameters to be checked in
663    in a few minutes under verification/carbon/code/
664    
665    checkpoint47f_post
666    Merging from release1_p10:
667    o modifications for using pkg/exf with pkg/seaice
668      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
669        and SEAICE_EXTERNAL_FLUXES
670      - pkg/exf CPP options EXF_READ_EVAP and
671        EXF_NO_BULK_COMPUTATIONS
672      - usage examples are Experiments 8 and 9 in
673        verification/lab_sea/README
674      - verification/lab_sea default experiment now uses
675        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
676    
677    checkpoint47e_post
678    o created a tag prior to creating a branch
679    
680    checkpoint47d_post
681    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
682      at the bottom boundary had an erroneous half slip boundary condition
683    o added bottom drag and no slip boundary condition capabilities to
684      oceanic pressure coordinates code
685    o added new verification experiment global_ocean_pressure, this experiment is
686      also described in the tutorial section of the manual
687    checkpoint47d_pre
688    
689    checkpoint47c_post
690    o Added a verification experiment for a global cubed-sphere ocean run
691      -  verification/global_ocean.cubed32x32x30
692      -  uses pkg/therm_seaice and pkg/bulk_forcing
693    
694    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
695    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
696      when using P-coordinate; only implemented for atmospheric config.
697    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
698      NOTES: requires option NONLIN_FRSURF to be "#define".
699    o update advect_xz/results/output.txt (left from checkpoint44g_post)
700    
701    checkpoint47b_post
702    Merging from release1_p9:
703    o pkg/seaice
704      - removed GOTO's and added taf directives
705      - double precision constants to reduce the g77 (Linux)
706        to F77 (SGI) differences reported in release1_p8
707    o tools/genmake
708      - added SGI options
709    o verification/testscript
710      - updated to that of checkpoint47a_post
711    o verification/global_ocean.90x40x15/input/eedata
712      - modified for SGI f77 compatibility
713    o verification/lab_sea
714      - added description of sea-ice model
715      - added missing matlab routines
716      - added test of thermodynamics parallelization
717    
718    checkpoint47a_post
719    o new pkg: aim_v23
720     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
721       for now, keep the same surface forcing as before.
722     - Part-Cell implemented into AIM; check that Heat & Water are conserved
723     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
724     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
725    o add diagnostic of surface correction term in monitor output
726    
727    o bulk_force and therm_seaice
728    - Two packages:  bulk_force (Bulk forcing)
729      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
730    - Earlier integration from Stephaine Dutkiewicz
731      and Patrick Heimbach.
732    - Two ifdef statements for compile time,
733       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
734    
735    checkpoint47
736    differentiable version of checkpoint46n_post
737    o bug fix in quasihydrostaticterms
738    o * "clean" adjoint code (in terms of extensive recomputations)
739        can now be obtained for all GMREDI options (i.e. for
740        - GM_VISBECK_VARIABLE_K
741        - GM_NON_UNITY_DIAGONAL
742        - GM_EXTRA_DIAGONAL
743        - GM_BOLUS_ADVEC )
744      * However, wrong gradient check problem remains unsolved.
745      * New CPP options have been introduced for different
746        tapering schemes
747    o external_fields_load now part of differentiation list
748    o pressure needs multiple storing;
749      would be nice to have store_pressure at beginning or
750      end of forward_step, e.g. by having phiHyd global (5-dim.)
751      (NB: pressure is needed for certain cases in find_rho,
752      which is also invoked through convective_adjustment).
753    o recomputations in find_rho for cases
754     'JMD95'/'UNESCO' or 'MDJWF' are OK.
755    o #define ATMOSPHERIC_LOADING should be differentiable
756    o ini_forcing shifted to begining of initialise_varia
757    o Incorporating QNVS line search routines into MITgcm
758      (this is separate code, and therefore not under pkg)
759      lsopt/, optim/
760    o Updated verification/carbon/
761      - #define GM_VISBECK_VARIABLE_K
762      - GM_taper_scheme    = 'ldd97'    
763    
764    checkpoint46n_post
765    Merging from release1_p8:
766    o verification/natl_box:
767      updating new external_fields_load routine
768    o New package: pkg/seaice
769      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
770      The sea-ice code is based on Hibler (1979-1980).
771      Two sea-ice dynamic solvers, ADI and LSR, are included.
772      In addition to computing prognostic sea-ice variables and diagnosing
773      the forcing/external data fields that drive the ocean model,
774      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
775      The implied surface heat flux is then stored in variable
776      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
777      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
778      non-local transport term.  Because this call precedes model
779      thermodynamics, temperature under sea-ice may not be "exactly" at
780      the freezing point by the time theta is dumped or time-averaged.
781      N.B.: fairly large differences in accuracy occur across
782            different platforms/compilers; comparison between
783            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
784            generated output gives:
785       T           S           U           V
786      C D M    c        m  s        m  s        m  s        m  s
787      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
788      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
789      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
790    
791      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
792    o GAD:
793      - generated new common blocks to account for call of
794        same gad routines with differing traceridentities
795        (needed to modify tracerIdentity indices in GAD.h)
796      - generated separate common blocks for case useCubedSphereExchange
797        (Department of Futurology)
798      - parameter lists to gmredi_?transport: added tracerIdentity
799      - added new key indices to tamc.h
800    o external_fields_load:
801      - added this routine to TAF list
802      - needed to make some common blocks global and additional storing
803        along the same lines as exf package (checkpoint_lev?_directives.h)
804    o exf:
805      updated external forcing package
806      - bug fixes carried over from ecco-branch
807        (missing OBCS_OPTIONS.h in two routines)
808      - enable easy to use "no forcing".
809      - added exf I/O for atmospheric loading
810      - added exf I/O for runoff data
811      - transfered scaling between exf <-> MITgcm to exf namelist
812    o Adding new verification experiment global_with_exf.
813      This verification experiment is almost identical to the
814      global_ocean.90x40x15 experiment, except that it uses
815      the exf (and cal) package instead of the
816      external_fields_load routine (cf README file).
817    
818    checkpoint46m_post
819    o modified testscript to return -- when there are no lines of "%MON" output
820    o added new flag "quasiHydrostatic" for QH mode
821      and new routine quasihydrostaticterms()
822    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
823      New routine: mom_u_coriolis_nh()
824    o fixed sign of non-hydrostatic metric terms in u and v equations.
825      Depend on correct sign of gravitySign.
826    o added work.pc* to .cvsignore in aim directories using ifc
827    o introduced flag for controllin non-hydrostatic metric terms
828    o removed gravitySign from PARM04
829    o switched to g77/ifc from pgf77 in aim experiments
830    
831    checkpoint46l_post
832    o made convective adjustment work with pressure coordinates:
833     - changed the direction of k-loop in convective_adjustment.F for the
834       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
835     - adjusted the reference pressure k-index in convective_adjustment.F
836     - adjusted the convection condition in convect.F (in analogy to
837       calc_ivdc.F)
838     - convective_adjustment no longer computes anything on the halos
839     - removed the warnings about negative salinity from find_rho.F and
840       find_alpha.F; instead the new routine look_for_neg_salinity, called
841       at the beginning of find_rho, find_alpha, and find_beta, does a
842       check of the entire slice, if CPP-option
843       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
844    checkpoint46l_pre
845    
846    checkpoint46k_post
847    o fixed the verification/global_ocean.90x40x15 experiment:
848     - new bathymetry (the world according to A., JMC, and M.)
849     - new initial fields and forcing fields (*.bin files)
850     - new POLY3.COEFFS (for the next release one should switch to a full
851       equation of state: JMD95P or MDJWF)
852     - fixed several errors and redundancies in the data file
853     - experiment uses looped cells
854     - added matlab directory with diagnostic scripts for plotting of output
855    
856    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
857     - read AIM physics parameters from a file (data.aimphys)
858     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
859    
860    checkpoint46j_post
861    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
862    o move wVel computation at the end of the time step, in S/R integr_continuity
863    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
864    o update timeave pkg for wVel diagnostic.
865    checkpoint46j_pre
866    
867    checkpoint46i_post
868    o Clean up AIM package (and keep the results unchanged):
869      include CPP_OPTION and use IMPLICT NONE in all routines ;
870      declare all the variables _RL ; use _d 0 for all numerical constants.
871      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
872    
873    checkpoint46h_post
874    o cleaned up the use of rhoNil and rhoConst.
875      - rhoNil should only appear in the LINEAR equation of state, everywhere
876        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
877        and the dynamical equations are all divided by rhoConst
878    o introduced new parameter rhoConstFresh, a reference density of fresh
879      water, to remove the fresh water flux's dependence on rhoNil. The default
880      value is 999.8 kg/m^3
881    o cleanup up external_forcing.F and external_forcing_surf.F
882      - can now be used by both OCEANIC and OCEANICP
883    checkpoint46h_pre
884    
885     Added code to convert surface volume flux (fresh water) into
886     a mass flux when using P coordinates in the ocean (OCEANICP).
887     Note: It assumes you have set rho0=rhoConst=density of fresh water.
888    
889    checkpoint46g_post
890    o Include a new diagnostic variable phiHydLow for the ocean model
891      - in z-coordinates, it is the bottom pressure anomaly
892      - in p-coordinates, it is the sea surface elevation
893      - in both cases, these variable have global drift, reflecting the mass
894        drift in z-coordinates and the volume drift in p-coordinates
895      - included time averaging for phiHydLow, be aware of the drift!
896    o depth-dependent computation of Bo_surf for pressure coordinates
897      in the ocean (buoyancyRelation='OCEANICP')
898      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
899        Theta, Salinity, and Pressure in the parameter list. This routine is
900        presently contained in find_rho.F. This routine does not give the
901        correct density for 'POLY3', which would be a z-dependent reference
902        density.
903    o cleaned up find_rho
904      - removed obsolete 'eqn' from the parameter list.
905    o added two new verification experiments: gop and goz
906      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
907    checkpoint46g_pre
908    
909    checkpoint46f_post
910    o Enable tangent linear (forward mode) gradient checks:
911      - extended active file handling to g_... files
912      - added TANGENT_SIMULATION to theSimulationMode
913      - extended grdchk package accordingly
914    o added tangent linear setup in verification/carbon/code_ftl
915    o added adjoint setup in verification/front_relax/code_ad
916    
917    checkpoint46e_post
918    o Added new equation of state -> MDJWF
919      - EOS of McDougall et al., 2002, JAOT, submitted
920      - caveat: the equation of state is only valid for a smaller (more
921        realistic?) range of values than JMD95P/Z and UNESCO
922      - added masks to the calculation of pressure in store_pressure
923      - added more check values for density in check_eos (ini_eos.F), some of
924        the old check values are out of the range of the MDJWF-eos, so don't
925        expect perfect matches for those
926    checkpoint46e_pre
927    
928    checkpoint46d_post
929    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
930      'OCEANICP', also initialised field pressure correctly in ini_eos in the
931      case of pressure coordinates. eosType='JMD95Z' in
932      combination with buoyancyRelation='OCEANICP' now causes an error.
933    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
934      in find_alpha/beta.
935    checkpoint46d_pre
936    
937    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
938      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
939    
940    checkpoint46c_post
941    o Changes necessary for ocean in p-coordinates
942     -  Added new buoyancy relation = 'OCEANICP'
943     -  Added new parameters = gravitySign (this used to be contained inside
944        the factor dRdZ which I added when we first switched to R coordinates).
945     X GM/Redi is not compatible (yet)
946     X bottom drag and no-slip need to be debugged.
947    checkpoint46c_pre
948    
949    checkpoint46b_post
950    o Added new equation of state -> JMD95Z and JMD95P
951      - EOS of Jackett and McDougall, 1995, JAOT
952      - moved all EOS parameters into EOS.h
953      - new routines ini_eos.F, store_pressure.F
954    o Added UNESCO EOS, but not recommended because it requires
955      in-situ temperature (see JMD95)
956    o Modified formatting for knudsen2.f in utils/knudsen2 and added
957      unesco.f to be used with POLY3
958    checkpoint46b_pre
959    
960    checkpoint46a_post
961    o Added (atmospheric) pressure loading
962      - new field in FFIELDS.h, etc...
963      - new cpp flag ATMOSPHERIC_LOADING
964    o Changed hFacC to _hFacC in calc_phi_hyd.F
965    o Added SHORTWAVE_HEATING to some files for consistency
966    checkpoint46a_pre
967    
968    checkpoint46
969    further merges from release1_p5
970    o new ctrl package
971      - adopted from ECCO environment to enable optimization
972      - added Eliassen Palm fluxes to controls
973    o added Eliassen Palm flux controls to gradient check package
974    o cost package
975      - Compatible with new ctrl package
976      - added Eliassen Palm cost hooks
977      - modif's of existing cost functions
978    o Adjoint-related bug fixes in kpp:
979      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
980      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
981    o autodiff package
982      - flow directives:
983        + new for S/R do_the_model_io
984        + enhanced for S/R checkpoint
985        + new gmredi.flow
986      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
987        disable adcommon.h/g_common.h by default.
988      - fixed problem for adjoint of global_max
989    o modified verification/carbon/
990    o New setup for adjoint of global_ocean
991    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
992    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
993    o incorporated hooks for sponge layer code (external_forcing.F)
994    
995    checkpoint45d_post
996    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
997    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
998      (affects plume_on_slope "cg2d" output)
999    o add new parameter deltaTfreesurf for free-surface time stepping
1000    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1001    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1002    o change phiMin in exp1 (to agree with documentation)
1003    o add new flags:
1004     - T,S forcing inside/outside Adams-Bashforth
1005     - turn off temp,salt advection and/or forcing
1006     - for each tracer, define internal flag for multiDimAdvection & A-B
1007    o monitor: change definition of KE to check conservation of Energy
1008    
1009    checkpoint45c_post
1010    o Removed f90 comments ("!")
1011    o Modified initialisations to enable exf package for MITgcm
1012      (without invoking ECCO_PACKAGE).
1013    o modifications to gradient check package (Martin Losch)
1014      - enable centered differences
1015      - modified format of standard output
1016    
1017    checkpoint45b_post
1018    o cleaned exchange calls in cg2d
1019    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1020    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1021      to configure barotropic setup (Martin Losch)
1022    o moved some initialisations within bi,bj loop in dynamics
1023      (TAF flow dependency)
1024    o in initialise_varia, moved call packages_init_variables
1025      before convective_adjustment_init
1026      (corresponding adjustment of TAF tape initialisation).
1027    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1028    
1029    checkpoint45a_post
1030    o compute Rho over the whole domain (extend iMin,jMin indices)
1031    o specific exchange for X-slice domain (case Ny=1)
1032    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1033    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1034    
1035    checkpoint44h_post = checkpoint45
1036    o Fix to restore differentiability:
1037      place at which packages_init_variables is called in
1038      initialise_varia is crucial for reverse control flow.
1039    o modifications in GMRedi to enable stable adjoint
1040      (corresponding modif's in thermodynamics, dynamics)
1041    o added missing hook for sponge layer code in external_forcing
1042    o modified test cost functions
1043    o storing in gad_advection (plus removal of write(0,*)!
1044    o missing headers TR1.h added in convective_adjustment routines
1045    o errorMessageUnit set non-equal zero in eeboot
1046      (conflict on some platforms, e.g. IBM SP3)
1047    o modified carbon verif.
1048    
1049    checkpoint44h_pre
1050    o vertical grid option: allow to put the Interface at the middle between
1051      2 cell-centers ; replace delZ in pkg/kpp by drF.
1052    o GM Advective form: Tracers are advected using the residual transport (=
1053      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1054    
1055    checkpoint44g_post
1056    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1057      results) ; ifdef missing in thermodynamics.F
1058    
1059    checkpoint44f_pre,checkpoint44f_post
1060    o added PTRACERS package
1061      This allows an arbitrary number of passive tracers to be integrated
1062      forward simultaneously with the dynamicaly model.
1063      + Implemented so far:
1064        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1065        - I/O and checkpointing
1066        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1067      + Not implemented so far:
1068        - KPP
1069        - OBCS
1070      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1071        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1072        line in data.pkg.
1073      + This package is disabled by default since it increases storage.
1074    
1075    
1076    o testscript: added -cleanup option
1077    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1078                 b) enable to filter 2D fields.
1079    
1080    checkpoint44e_pre,post
1081    o re-wrote convective adjustment to use pre-calculated weights
1082      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1083      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1084      Original calls to convect() still in place.
1085    
1086    chkpt44d_pre,post
1087    o added missing EXCLUDE_MONITOR flags
1088    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1089      (incompatible typ in MIN/MAX expressions caused problems
1090      on IBM SP3)
1091    o in genmake added variable MAKEDEPEND
1092      plus resetting for case SunOS
1093    o added timer_stats.c routine for IBM SP3
1094    o removed variables in dynamics
1095    !!! I forgot to create tag chkpt44d_pre !!!
1096    !!! But chkpt44d_pre = chkpt44c_post    !!!
1097    
1098    o real fresh water flux implemented with non-linear free-surface.
1099    
1100    chkpt44c_pre,post
1101    o few fix (mask in shap_s2, EmPmR in external_field_load,
1102      USE_NATURAL_BCS in solve_for_P);
1103    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1104    
1105    checkpoint44b_pre/_post
1106    o merge of relevant stuff from the ecco-branch:
1107      - genmake: removed $S64 overwrite for case SunOS
1108      - pkg/exf: update and corrections for field swapping and obcs
1109      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1110                  harmonized between ECCO and MITgcm
1111      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1112                      updated checkpointing_lev... lists for obcs
1113      - model/src: minor changes in forward_step, plot_field
1114                   added directive for divided adjoint in the_main_loop
1115      - pkg/mdsio: added mdsio_gl_slice
1116    
1117    o check parameters & config (chkpt44a_pre,post)
1118    o OBC and NonLin_FrSurf.
1119    
1120    checkpoint44
1121    o fix bug in mom_vi_del2uv
1122    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1123    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1124    o update AIM experiments (NCEP input files)
1125    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1126    o added some stuff for AD
1127    
1128    checkpoint43
1129    o added two new advection tests
1130    o added global 4x4 degree ocean test
1131    o added test of H&S94 with free surface on cube
1132    o some final mods for gradient check, adjoint,...
1133    
1134    checkpoint42
1135      Fixed AD-related problems:
1136    o Store directives up-to-date with re-arranged Adams-Bashforth
1137      (mainly thermodynamics.F)
1138    o New store directives for multi-dim. advection schemes
1139      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1140      * new common block and key passkey
1141      (mainly gad_advection.F)
1142    o Modified store directives for split of dynamics/thermodynamics
1143      for the case ALLOW_KPP
1144    o Cleaned argument list for timestep_tracer.F
1145    
1146    checkpoint41
1147    o re-formatted/added comments in prologues of key subroutines
1148      to work with protex
1149    
1150    checkpoint40
1151    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1152    o added FLT (floats) package from Arne along with demo. experiment
1153    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1154      implementation of forward-in-time forcing terms
1155    o more mods for non-linear free-surface including new variable
1156    o modified multi-dim method to work on cube
1157    o bug fix in KPP (from DM)
1158    
1159    checkpoint40pre9
1160    o added DST advection schemes
1161    o fix MPI bug on SGI's
1162    o modifications for non-linear free-surface
1163    o fixed conditionals for fixed flow/passive tracer only mode
1164    o added tension/strain form of stress tensor
1165    o changes to commenting of arguments for TAF/TAMC
1166    o added/updated many matlab scripts
1167    o added multi-dimensional advection method for tracers
1168      
1169    checkpoint40pre8
1170    o new package rw/
1171      Added method for dumping intermediate local arrays:
1172      mdsio_writetile - same as mdsio_writefield except works from inside
1173                        bi,bj loop
1174      mdsio_writelocal - same as mdsio_writetile except works for local
1175                         arrays
1176      write_local_r? - higher-level wrapper for mdsio_writelocal
1177      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1178      Example given at end of mom_vecinv.F that dumps some local arrays.
1179    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1180      control flux-form versus vector invariant code.
1181      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1182      or genmake -DISABLE ...
1183    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1184      (additional storing is now needed for case vecinv;
1185      currently nothing implemented to switch this storing off
1186      in case fluxform is used since no CPP flag available).
1187    
1188    checkpoint40pre7
1189    o bug fix in dynamics.F
1190      calc_viscosity called before k=1,Nr loop.
1191    o added some #ifdef's ALLOW_PASSIVE_TRACER
1192    o cleaned initialisations in ctrl_map_ini
1193      related to TAF
1194    
1195    checkpoint40pre6
1196    o split dynamics into thermodynamics & dynamics
1197    o corresponding split of calc_diffusivity into
1198      calc_diffusivity, calc_viscosity
1199      (kpp_calc_diff, kpp_calc_visc).
1200    o Added diffkr, kapgm to control variables
1201    o bug fix in gmredi_slope_limit for ldd97
1202    
1203    checkpoint40pre5
1204    o proper initialization of Adams-Bashforth time stepping
1205      + uses forward step for very first step of model (iter=0)
1206    o re-generated *all* output since almost all output is modified by this
1207      change (sorry but we've been putting this one off for about 2 years)
1208      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1209        *not* regenerated since they are already out of date and I don't
1210        want to create the impression that they are suddenly working.
1211    o removed KAP stuff for DEC's
1212    o modified/added many .cvsignore files in */code and */input
1213    o added new expt "solid-body.cs-32x32x1"
1214      + this uses an alternative form of ini_curvilinear_grid.F which
1215        is not necessarily any better than the current one...
1216    
1217    checkpoint40pre4
1218    o added re-initialisations of utrans,vtrans,rtrans in
1219      calc_common_factors which are crucial for TAF.
1220    o extended iMin,jMin range for calc_common_factors,
1221      calc_diffusivity
1222    o added option ALLOW_PASSIVE_TRACER
1223    o a few minor updates and fixes
1224    
1225    checkpoint40pre3
1226    o created calc_gtr1.F for gad package
1227    o split the_main_loop and re-introduced forward_step
1228    o some recomputations of nIter0 for TAMC
1229    
1230    checkpoint40pre2
1231    o Updated to latest branch of AJA, JMC
1232    o Added gradient check package
1233    o Added routines for passive tracer handling
1234    o Added carbon sequestration sensitivity experiment
1235    
1236    checkpoint39
1237     o Modifications and fixes to support TAMC
1238       (mainly missing or wrong directives)
1239     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1240       in addummy_in_stepping
1241     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1242     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1243     o Included following packages:
1244       cal: calendar
1245       exf: external forcing
1246       ecco: essential routines to control use of cal, exf
1247             (NB: this is not the full ECCO environment)
1248     o disabled some packages by default in genmake
1249    
1250    checkpoint38
1251     o see notes_c37_adj.txt
1252     o corrected wrong layer index in external_forcing_t
1253     o replaced the_main_loop/forward_step by the_main_loop
1254     o removed forceoutput from write_state
1255       (replaced criteria for initial/final state)
1256     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1257    
1258    checkpoint37
1259     o mdsio.F routine split and packaged in pkg/mdsio
1260       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1261        used unless genmake -disable=mdsio)
1262     o allow a more precise surface-geopotential gradient for the atmosphere
1263       taking into account the change in space of Alpha (=1/rho) at the surface.
1264     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1265       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1266     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1267       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1268       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1269     o Time-Average diagnostics defined as a pseudo package "timeave".
1270     o pickup files : old pickup (before c35) did not work with new code (c35
1271       and after) unless activating 2 commented lines in initialise-varia.
1272     o Non-Hydrostatic pickup file Pb fixed.
1273     o bug with Rigid-lid version (since c35) fixed.  
1274    
1275    checkpoint36
1276     o implement Crank-Nickelson barotropic time-stepping
1277     o recover Time-Average diagnostics
1278     o fix Pb in checkpoint (PR#19)
1279     o AIM become a standard package ; clean unused CPP_kees
1280    
1281    checkpoint35
1282     o subtantial rewrite of dynamics.f
1283     o allows staggered time-stepping
1284     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1285     o added bottom drag (linear + quadratic)
1286    
1287    checkpoint34
1288     o Modified exchange routines for correct reverse simulation.
1289     o Added verification output to comply with bug fix in impldiff.F
1290       as of c33 (exp2, natl_box).
1291     o Corrected store directives in dynamics.F
1292     o Corrected array boundaries in impldiff.F
1293     o Corrected array dimensions in gmredi.
1294       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1295     o Added routine GLOBAL_SUM_INT to global_sum.F
1296     o Added mdsio_gl.F for ECCO purposes.
1297    
1298    checkpoint33
1299     o Fixed bug in lower BC in impldiff.F
1300     o Fixed confusion about units of forcing arrays in FFIELDS.h
1301       namely Fu,Fv,Qnet,Qsw,EmPmR:
1302       - Removed verification/natl_box/code/external_fields_scale.F
1303         (did not differ from that in model/src)
1304       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1305         (see FFIELDS.h for description)
1306       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1307         kpp_calc.F and kpp_transport_t.F
1308       - Removed model/src/external_fields_scale.F and calls to it
1309       - verification/natl_box uses flux data with "atmospheric" sign so
1310         a special version of external_fields_load.F is used to
1311         change the data as it's read in. This way, the arrays
1312         have the right units and signs at all times tha a user could
1313         possibly use them.
1314     o Corrected genmake to delete a temporary file during configuration
1315    
1316    checkpoint32
1317     o Scaling of forcing fields moved from external_forcing.F to
1318       external_fields_scale.F, called directly after loading fields.
1319     o Surface relaxation terms added to surface tendency fields in
1320       extra subroutine.
1321     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1322       fields.
1323     o Changes in GMRedi to comply with packaging structure.
1324     o Modifications and bug fixes in KPP package.
1325     o Verification experiment for KPP added (verification/nat_box/)
1326    
1327    checkpoint31
1328     o Packages interface brought in line with defined standard
1329       -> new routines packages_...F
1330       -> changes in initialise_fixed.F, initialise_varia.F
1331       -> enables initialisation interface for ECCO package
1332     o Rescaling of external forcing fields immediately after read
1333       (removed from external_forcing.F)
1334       -> new: surface_fields_scale.F
1335       -> affects ini_foorcing.F, external_fields_load.F
1336     o Computation of surface tendencies before tendency updates.
1337       -> new: external_forcing_surf.F
1338     o Change of variable names useGMRedi, useKPP, useECCO
1339     o Further changes in dynamics.F, impldiff.F for TAMC
1340     o Tested for experiments 0, 2, 4.
1341       - not yet tested for GMRedi.
1342       - not yet tested for KPP.
1343    
1344    checkpoint30
1345     o Updates for OBCs
1346     o New experiment for test OBCs (internal_wave)
1347     o New output.txt in verification/exp4/results/
1348     o Updates for KPP: calculation of viscosity corrected, new variables
1349       kpp_dumpFreq and kpp_taveFreq
1350     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1351       and entry for T90 in genmake
1352    
1353    checkpoint29
1354     o packaged KPP and GM/Redi
1355    
1356    checkpoint28
1357     o Corrected initialization of hFacMin for difference vertical coordinates
1358     o Modified calculation of partial cell thickness to more robust algorithm
1359     o config_summary.F: replaced write_1D_... by write_0D_...
1360       read_write.F: added subroutines write_0D_...
1361     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1362       included some initialisations required for TAMC.
1363     o routine calc_isoslopes: modified sqrt computation to make it
1364       differentiable for zero argument.
1365     o routines dynamics, impldiff:
1366       included store directives and tape key computations required for TAMC.
1367     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1368    
1369    checkpoint27
1370     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1371       formulation works properly with variable resolution.
1372     o restructured the calling tree between the_model_main() and dynamics()
1373     o split initialise() into initialise_fixed() and initialise_varia()
1374     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1375       in new routine ini_psurf()
1376    
1377    checkpoint26
1378     o moved some #ifdef in optional routines to encompass everything
1379       except the argument declarations. This was using up some memory.
1380     o fixed macros like _ADT to work with both versions of Linux cpp
1381     o cleaned up some unused and uninitialized variables
1382       (helps when debugging with strict compile options)
1383     o split up CPP_EEOPTIONS.h into options and macros
1384       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1385     o patch for 2 processor JAM mode
1386    
1387    checkpoint25
1388     o updates for OBCs and NH
1389     o dramatically reduced memory usage
1390     o added "JAM" routines for use on Artic network
1391     o parameterization of convection by implicit vertical diffusion
1392     o added a diagnostic of convective index
1393     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1394       (this is was partly for OBCs and NH but also in anticipation of
1395        an explicit free-surface option)
1396     o initial state input files for U and V
1397    
1398    checkpoint24
1399     o Removed some spurious "REAL"s
1400     o Updated KPP to latest version from JPL
1401     o Added a COS(latitude) in horizontal viscosity
1402    
1403    checkpoint23
1404     o Added del^4 diffusion for salt and temperature
1405     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1406    
1407    checkpoint22
1408     o Made many small changes: implicit none, format(i5), etc...
1409     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1410    
1411    checkpoint21
1412     o Introduced new I/O package that supports direct-access records (mdsio.F)
1413     o Split-up mid-level I/O routines
1414     o Updated input data for experiments 0,1,2,4 and 5
1415     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1416    
1417    checkpoint20
1418     o Tidied up open-boundaries some more
1419     o Added non-hydrostatic code
1420     o Fixed some input data
1421     o Modified MPI start-up to work in "coupled" context.
1422    
1423    checkpoint19
1424     o Tidied up directory structure for verification experiments.
1425     o Added new code for open boundaries.
1426     o Corrected advective terms near boundaries.
1427     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1428     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1429     o Split default parameters out of ini_parms.F into set_defaults.F.
1430    
1431    checkpoint18
1432     o Further changes for optional code generation with
1433       CPP - ugh!
1434    
1435    checkpoint17
1436     o Beginning to incorporating modularity
1437       for supporting atmos. and ocean configs.
1438     o Small changes for TAMC complinace
1439     o New ultra simple test case. Barotropic box
1440       configuration "exp0".
1441    
1442    checkpoint16
1443     o Minor changes to exchange routines to support
1444       accumulation in reverse mode. Adjoint of an
1445       assignment is an addition.
1446     o Changes to support compilation by TAMC (LR(1)
1447       syntax) and by g77 under Linux ( 72 character
1448       limit ).
1449    
1450    checkpoint15
1451     Rewrote exchange routines to allow
1452     o General tile <-> tile connectivity.
1453     o TAMC reverse mode flag ( is this really needed? )
1454     o Variable width overlap and exchange region widths.
1455     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1456       shmput/shmget, VIA, SYSV shmem and every other cool
1457       communication method.
1458    
1459    checkpoint14
1460     Consistent isomorphism chages made. These allow dynamical core
1461     to support both pressure and meters as a vertical coordinate.
1462    
1463    checkpoint13
1464     Release which corrects global_max problem and a couple
1465     of KGM time-averaging diagnostic errors. Also contains
1466     a double-gyre experiment setup as well as the baseline
1467     4 degree global template. The double gyre template is
1468     organised to allow it to be applied automatically to
1469     the baseline configuration.
1470    
1471    branch-point-rdot
1472     A few tidy-ups have been made bt the real point of this
1473     check-point (excuse the pun) is to allow a branch to be
1474     made for the purposes of adding the rDot alterations.
1475     I don't want to commit the rDot to the main-trunk until
1476     we've actually tested it...
1477    
1478  checkpoint12  checkpoint12
1479   Tidy up and added generic genmake script (formerly   Tidy up and added generic genmake script (formerly
1480   configure script).   configure script).

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