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revision 1.38 by heimbach, Tue Apr 10 22:35:24 2001 UTC revision 1.262 by edhill, Thu Feb 26 22:39:55 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o change MNC call locations and add coordinate attributes
7    o mask vorticity at the corner ; affects global_ocean.cs output
8    o fix ini_curvilinear_grid ; test CS experiments with mpi
9    o aim.5l_cs: modify sea-ice fraction input file ; update output
10    o exf: Adding simple range check routine for exf fields after read
11    
12    checkpoint52k_post
13    o removed top-level directory "diags"
14      - we migrated these functions to pkg/timeave a long time ago
15    o fixed bug introduced in pkg/monitor
16    o accuracy ctrlprec = 32 insuffient for gradient checks using
17      averaged fields (I/O via cost_averages)
18      -> use ctrl.h in active_file*.F to control I/O precision.
19    o paramter list of CALL ADTHE_MAIN_LOOP
20    o added initial do_the_model_io to ecco
21    o set all ...Freq to zero after cost_final
22      taveFreq, dumpFreq, pChkptFreq
23    o MAIN and ECCO differentiability restored
24    
25    checkpoint52j_post
26    o fix nchklev in tamc.h for global_ocean...
27    o Bringing flow and store directives up-to-date
28    o Really weird thing!
29      call do_the_model_io from the_main_loop with parameters
30      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
31      TAF places a faulty re-call of initialise_varia
32      after cost_final call which should not be there!
33    checkpoint52j_pre
34    
35    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
36      error messages
37    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
38    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
39      debug output
40    o modfied mdsio_writefield.F to handle non-global files under exch2
41    o update AIM Cubed-Sphere exp (aim.5l_cs):
42      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
43    o update AIM Equatorial Channel exp:
44      use standard aim_v23 pkg and change the SST fields to be more realistic.
45    o globalFile now works with exch2
46    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
47      mon_vort3.F to make exch2 friendly with >1 tile per cube face
48    o limit timeave output for hi-res integrations
49    
50    checkpoint52i_post
51    o removed CPP_EEOPTIONS.h from verification/*/code
52    o updated the tiling for global_ocean_pressure
53    checkpoint52i_pre
54    
55    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
56      the old pkg/aim).
57    
58    checkpoint52h_pre
59    o shortened offending lines in exch2_send_rx?.template
60    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
61    o genmake2: add build & execute test for NetCDF code
62    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
63      old grid files, moved CPP_EEMACROS.h to pkg/exch2
64    o added useSingleCPUIO flag to monitor.F and mon_out.F
65    o added temporary hack for sea-ice dynamics on the cube:
66      metric terms are ignored and it is assumed that
67      there is no sea-ice on cube faces 1, 2, 4, and 5.
68    
69    checkpoint52f_post
70    o added exch2 cube routines to pkg/exch2
71    o modified hs94.cs-32x32x5 to use it
72    o added new grid files to hs94.cs-32x32x5
73    checkpoint52f_pre
74    
75    checkpoint52e_post
76    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
77      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
78    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
79      to work with implicit vertical advection and AB ;
80    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
81    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
82     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
83    checkpoint52e_pre
84    
85    o fix bug in impldiff when Nr=1 or Nr=2.
86    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
87    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
88    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
89      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
90    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
91    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
92    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
93    
94    checkpoint52d_post
95    o re-tiled many expts to allow comparison in multi-processor mode
96      - updated output accordingly
97      - changed hs94.128x64x5 to use intial T from file rather than use the
98        random number generator
99    o add infrastructure in model routines for fizhi and gridalt packages
100    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
101    o changes to permit hi-res, cubed-sphere, configuration
102      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
103      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
104      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
105        of surface winds for the cube
106      (A verification experiment, based on global_ocean.cs32x15, but with
107       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
108       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
109       complete with example surface forcing files and matlab scripts to look
110       at the output and compare it with that of global_ocean.cs32x15.)
111    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
112       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
113       to conform to the common rule.
114    o check-in the first version of the coupler + interfaces for multi-components
115       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
116       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
117       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
118       - ocean and atmos. share the same horizontal grid (no interpolation).
119       - exchanges between component and coupler is done in forward_step
120    o new verification experiment, cpl_aim+ocn:
121       coupled ocean - AIM atmosphere on cs32 grid.
122    
123    checkpoint52d_pre
124    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
125    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
126    
127    checkpoint52c_post
128    o Fixing OPTIONS files for use of exf:
129      - ALLOW_ECCO not needed
130      - ECCO_CPPOPTIONS.h should not be included from
131        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
132        as has been the case in the past
133      - All cal/exf related options are currently set in
134        single header file. Should remain so until we
135        agree on a consistent new policy.
136    o Removed all CPP options for cal package.
137      cal has no more CPP options.
138    o modified STOREs in GAD_ADVECTION
139    o corrected key comp. for passkey
140    
141    checkpoint52b_post
142    o new version: "thsice" of thermodynamic sea-ice pkg:
143     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
144     - modify fluxes but do not change theta directly;
145     - light cleaning of bulk_force pkg (still needed with thsice).
146     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
147       + output_thsice.txt to test thsice & bulk_force pkgs.
148    o put back grid & coriolis monitor output.
149    checkpoint52b_pre
150    
151    o call "do_the_model_io" at the beginning (=> dump initial state)
152    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
153    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
154      (need info on NUMBER_OF_PTRACERS)
155    o missing PTRACERS headers in some routines
156    o default tamc.h in pkg/autodiff supposed to crash
157      to ensure proper customization
158    
159    checkpoint52a_post
160    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
161      - moved surfaceTendencyTice from pkg/seaice to main code
162      - subroutine FREEZE_SURFACE now limits only surface temperature
163        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
164        => new output.txt for global_ocean.cs32x15 & global_with_exf
165      - keep the old version of FREEZE for backward compatibility;
166        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
167      - corresponding modifs for TAF directives
168    o added surface flux output variables to TIMEAVE_STATVARS
169    o time-averaged output for pkg/ptracers
170    o fix problem with ECCO-related divided adjoint
171      snapshot file was missing some ad-variables,
172      but no warning issued by TAF
173    
174    checkpoint52a_pre
175    o some bug fixes for #undef REAL4_IS_SLOW
176    
177    checkpoint52 = ecco_c52_e35
178    o after testing adjoints of checkpoint51u_post
179    
180    checkpoint51u_post
181    o this is the post-merge tag of the ecco-branch
182      (needs another clean checkout and re-testing)
183    o various natl_box_adjoint configs and results
184      but no input fields
185    o obcs adjoint not yet merged!
186    o adding ECCO global 1x1 and 2x2 degree configs
187    o updated/extended some store directives for seaice
188    o pkg/ecco now containes ecco-specific part of cost function
189    o top level routines the_main_loop, forward_step
190      supersede those in model/src/
191      previous input data.cost now in data.ecco
192      (new namelist ecco_cost_nml)
193    o in ctrl/ cleaned some cross-dependencies and updated CPP options
194    
195    checkpoint51t_post
196    o this is the pre-merge tag of the ecco-branch
197    
198    checkpoint51s_post
199    o cleanup: removed various obsolete #define-s
200    o pkg/grdchk
201      - renamed 'ph-grd 3' to 'grad-res'
202      - merged from ecco-branch
203        (remaining bug fixes for obcs gradient checks)
204      - additional high-precision output for testreport
205        (grep for 'precision_grdchk_result')
206    
207    checkpoint51r_post
208    o cleaned up or removed CPP_OPTIONS.h files
209    o updated results for some of the tests to reflect the new
210      optfiles (-ieee: -O0 instead of -O3)
211    
212    checkpoint51q_post
213    o cd_code:
214      - moved cd_scheme.F -> cd_code_scheme.F
215      - separate read_checkpoint from cd_code_ini_vars.F
216      - separated cd_code part from write_checkpoint
217      - updated AD_SOURCE, generated .flow
218      - added CD_CODE_VARS.h to the_main_loop
219      - Moving cd_code specific store dir.s to pkg/cd_code
220    o ctrl package totally restructured
221      - pack/unpack now optional and decoupled from
222        xx_/adxx_ I/O
223      - ctrl_pack/unpack cleaned
224        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
225      - confined inclusion of AD_CONFIG.h to where necessary.
226    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
227    
228    checkpoint51p_post
229    o create initial cd_code package
230      - WARNING: the initialization of fields within packages
231        is broken because INI_FIELDS (where READ_CHECKPOINT is
232        called) is called *before* PACKAGES_INIT_VARIABLES.
233        This seems to be backwards since
234        1) its important to initially zero the entire field including
235           the "halo" region
236        2) zeroing needs to be done *before* reading pickup info
237           and the pickup call might or might not happen in any
238           particular run
239      - this needs an overhaul for R2
240    o cleanup verification/*/code/GMREDI_OPTIONS.h
241    o cleanup testreport
242    
243    checkpoint51o_post
244    o bringing AD-related verif's up to date with genmake2
245      - carbon/
246      - global_ocean.90x40x15/
247      - hs.94.1x64x5/
248      - (front_relax/ )
249    o (more) consistent directory structure for AD-related verif.'s
250    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
251    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
252    o bug fix in find_alpha.F for MDJWF:
253      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
254        change rho -> rho-rhoConst
255      - replace call find_rho to find_rhonum
256    o initialisation of rFlx extended to full array (required by TAF)
257      and shifted to thermodynamics
258    o removed PTRACERS.h in ptracers routine
259    o added surfacetendencyPtr to S/R parameter list pracers_forcing
260    o Correcting initialisations for fVerU, fVerV.
261    o helping TAF to recognize dependency on kUp for
262      fVerU, fVerV
263    o Replacing delZ by delR in pkg/ctrl/
264    checkpoint51o_pre
265    
266    o undid all of cp51 pending some cleanups and discussion
267    o added the [#include "AD_CONFIG.h"] statement to all files that need
268       it for adjoint/tl #defines
269     o re-worked the build logic in genmake2 to support AD_CONFIG.h
270     o removed tools/genmake since it no longer works
271    
272    checkpoint51n_post
273    o modifications to make FREEZE flux visible to pkg/kpp
274      - moved surfaceTendencyTice from pkg/seaice to main code
275      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
276      - subroutine FREEZE now limits only surface temperature
277        (this means new output.txt for global_ocean.90x40x15,
278         global_ocean.cs32x15, and global_with_exf)
279    o added surface flux output variables to TIMEAVE_STATVARS
280    
281    checkpoint51n_pre
282    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
283    o added [#include "AD_CONFIG.h"] to all files that use the following
284      defines:
285      - ALLOW_ADJOINT_RUN
286      - ALLOW_TANGENTLINEAR_RUN
287      - ALLOW_ECCO_OPTIMIZATION
288    
289    checkpoint51m_post
290    o incorporating changes to get TAMC/TAF working in genmake2
291      - added new TAMC/TAF targets to the Makefile
292      - various cleanups related to package handling
293      - these changes should have no impact on the forward model
294    
295    checkpoint51l_post
296    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
297     - faster algorithm for cal_addtime.F
298     - higher precision arithmetic, where needed
299     - pkg/exf *startdate variables changed from calendar date to
300       model integration time
301    
302    checkpoint51l_pre
303    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
304    o enable to apply restoring on S & T only in a latitude band.
305    o update output (external_forcing_surf modif. change truncation errors)
306       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
307    
308    checkpoint51k_post
309    o change default to: useNHMTerms=.FALSE.
310     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
311       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
312     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
313        exp1, ideal_2D_oce
314     - change data file of oceanic exp (leave the results unchanged for now)
315       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
316    o set gravitySign automatically according to the vertical coordinate used
317      (and change sign: back to "logical" value: +1 when R increases downward)
318    o added an include barrier to the default CPP_OPTIONS.h and
319      removed the #include "PACKAGES_CONFIG.h" from it
320    o fix a bug in mom_fluxform (from chk51j_post)
321    
322    checkpoint51j_post
323    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
324    o adjusted some flow directives (dynamics, thermodynamics)
325    o added cubed-sphere case to test cost function
326    o heckpoint_lev?_directives.h now include
327      pkg-specific directives, whenever those are enabled.
328    o Moving pkg-specific flow directives to corresponding pkg
329      Moving pkg-specific differentiation list to corresponding pkg
330      Moving pkg-specific checkpoint-lev storing to corresponding pkg
331      ---> conventions are
332           - pkg_ad.flow
333           - pkg_ad_diff.list
334           - pkg_ad_check_lev?_dir.h
335    
336    checkpoint51i_post
337    o merge of the branch-genmake2
338      - knowingly breaks the older genmake
339      - automatic generation of all ALLOW_${PKG_NAME} defines
340      - new testreport supersedes older testscript
341    o large number of package inclusion and header cleanups
342    checkpoint51i_pre
343    
344    o new output for adjoin of global ocean vector invariant
345    o fix for checkpoint of thermodynamic seaice and bulk_force
346    o Steph gchem various cleanups
347    
348    checkpoint 51h_pre
349    o fixed some single quotes
350    o modify gchem pkg to be more versatile
351    o modifications to clean up dic pkg
352    o add pkg/cfc
353    
354    checkpoint51g_post
355    o provide links for ARPACK and ADM*TLM
356    o start removing verification/vero/
357    o update AD-related stuff
358      (in particular some IF-statements in model/src/ routines)
359    o adding to verification/global_ocean.90x40x15/ adjoint of
360      vector invariant setup
361    
362    checkpoint51f_post
363    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
364    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
365      of tracer Green's fucntions for ocean inversion project.
366    
367    checkpoint51f_pre
368    o Added on-the-fly spatial interpolation capability
369        "USE_EXF_INTERPOLATION" to pkg/exf.
370      - This is a temporary Cartesian-grid hack until
371        the super-duper ESMF coupler becomes available.
372      - See verification/global_with_exf/README for usage example.
373      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
374        flags and modified pkg/seaice accordingly.
375    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
376        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
377        non-local transport term.
378    
379    checkpoint51e_post
380    o pkg/mom_vecinv:
381      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
382      - add time-ave diagnostic of vorticity advection.
383    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
384    o atmospheric geopotential: - include water vapor effect;
385                                - use p^kappa in p* scaling.
386    o land pkg: read initial state from files.
387    o AIM : add stratospheric drag in the upper level
388    
389    checkpoint51d_post
390    o change function ILNBLNK (=> last non-blank char.) to return zero
391      (instead of the string length) when the string. char is empty
392    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
393    o modif's to restore TAMC compatibility
394      - avoid "_d" constructs in PARAMETER declarations
395      - avoid interrupting lines by comment lines
396    o Use cluster local disks for purely local I/O
397      vs. globally visible disks needed for ctrl stuff
398      (merged from ecco-branch)
399      - new active_file_loc... and mdsio_..._loc routines
400      - affected packages: autodiff, ctrl, grdchk, mdsio
401    
402    checkpoint51c_post
403    o introducing integer flag debugLevel
404      - debLevZero: suppress all output
405      - debLevA: standard
406      - debLevB: equivalent to current debugMode=.TRUE.
407    o introducing pathname variable mdsioLocalDir for mdsio
408      that can be specified at runtime
409      (relevant for cluster I/O to local disk)
410    `
411    >>>checkpoint51b_post
412    adjoint of ptracers
413    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
414    o extended state in checkpoint_lev?, etc.
415    o alternative ctrl/cost with tr1 or ptracer
416    o new comlev1_bibj_ptracers
417    o new ptracers.flow
418    o made ptracers_forcing same as external_forcing_s
419    o added verification for adjoint with ptracers
420      - adm. grdchk fail so far
421      - tlm. grdchk OK
422      - checked tapelev/comlev recomputations: OK
423    <<<checkpoint51b_pre
424    
425    checkpoint51a_post
426    o added code for biogeochemistry package
427      - new pkgs: dic, gchem
428      - new subroutine in ptracers
429    o modify code for biogeo packages
430      - in model/src and pkg/ptracers
431    
432    checkpoint51
433    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
434      - autodiff, ctrl, exf, grdchk, seaice
435      kept separate packages
436      - cost, ecco, obcs
437    o updating verification/internal_wave, verification/lab_sea
438      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
439    
440    checkpoint50i_post
441    o Preparing next differentiable checkpoint and sync
442      of MAIN vs. ecco-branch
443      - 1st step: this one is differentiable
444      - 2nd step: next(! not this) checkpoint will have updated packages
445                  from ecco-branch)
446    
447    checkpoint50h_post
448    o new package "land": provide surface BC for AIM.
449    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
450    o AIM: use true log-P extrapolation for near surface temp (= as in
451        F.Molteni paper) ; update aim.5l_cs output.
452    o New variable in PARM03 for more flexible pickups
453    o somewhat cleaned package initialisation sequence for
454      ctrl/ cost/ ecco/ in packages_... routines
455    
456    checkpoint50g_post
457    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
458      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
459      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
460        made the default because of faster convergence than ADI
461    
462    checkpoint50f_post
463    o exf totally restructured
464      - replaced all exf_set_ routines by one generic exf_set_gen.F
465        and made sure it's still differentiable
466      - split exf_getffields.F into new exf_bulkformulae.F
467      - exf_inscal_/exf_outscal_ suffixes consistent with field names
468      - updated adjoint/makefile and relevant verif. accordingly
469    
470    checkpoint50f_pre
471     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
472          + change Evap over land. (update aim.5l_cs output)
473     o added missing .cvsignores and made uniform across expts
474     o changed configuration of tidal_basin_2d expt
475     o added pkg/debug functions for tracing code in fatal crashes
476     o tidied pkg/monitor to use MONITOR_OPTIONS.h
477     o new fn in pkg/monitor to stop model if solution grows too big
478     o removed lots of single quotes from comments
479    
480    checkpoint50e_post
481    o make KPP work with PTRACERS
482     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
483       nearly a copy of kpp_transport_s
484     - there is no analogue to SurfaceTendencyS, so I have to use
485       gPtr(of the surface layer) instead
486    o add a new platform SunFire+mpi (SunFire 15000) to genmake
487    checkpoint50e_pre
488    
489    checkpoint50d_post
490    o change kpp output from multiple-record state files to single-record state
491      files analogous to write_state.F
492    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
493      analogous to the cg2d-related output.
494    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
495      so that writing to internal file fn (with length 512) fails.
496    checkpoint50d_pre
497    
498    checkpoint50c_post
499    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
500    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
501    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
502    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
503    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
504    
505    checkpoint50c_pre
506    Merging from release1_p13:
507    o bug fix for pkg/seaice dynamic solver
508    o Added SEAICE_initialHEFF to pkg/seaice
509    
510    checkpoint50b_post
511    o store u*,v* in gU,V instead of in guNm1,gvNm1
512    o in order to put the momForcing out of the Adams-Bashforth:
513      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
514      to timestep.F
515    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
516    o re-generate output for highly sensitive test-exp:
517       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
518    
519    checkpoint50b_pre
520    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
521    o corrected CPP option mismatch in exf_Bulk... functions for case
522      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
523    
524    checkpoint50a_post
525    o Bug fix for merging between c50 and KPP.
526      ikey was passed from thermodynamics to kpp_calc via
527      common block rather than being recomputed in kpp_calc,
528      in contradiction with new key itdkey.
529      New key ikppkey created, and tamc.h headers updated.
530    
531    checkpoint50
532    - 2nd step of merge with ecco-branch:
533      merge changes in ecco-branch back into main trunk
534    - bug fix in find_alpha
535    - more storing in gmredi_calc_tensor.F, kpp_routines.F
536    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
537    - merged some sliced AD support routines
538    
539    checkpoint49
540    merged from ecco-branch:
541    o exf:
542      - Enable initialisation of forcing fields to constant
543        (runtime) values.
544      - in exf_getffields.F
545        Reduce i-/j-loop to interior domain, discarding overlaps.
546        That also fixes wrong TAF-key computations for key_1, key_2
547        with bulf formulae.
548      - exf_init.F modify #ifdef for exf_init_evap
549      - exf_getffieldrec.F, ctrl_getrec.F
550        The following INT-usages are not safe:
551          fldsecs  = int(fldsecs/fldperiod)*fldperiod
552          fldcount = int(fldsecs/fldperiod) + 1
553        and were modified.
554    o autodiff: checkpoint_lev...
555      - updated storing for bulk formulae (some arrays were missing)
556      - added state for seaice package
557      - synchronized with main branch
558    o DIVA:
559      Modif.s in
560      - the_main_loop.F
561      - the_model_main.F
562      and added cost_final_restore.F cost_final_store.F
563      o With these changes, it is possible to fully separate
564        the first forward run to compute the cost function (mdthe_main_loop)
565        and adjoint runs over individual DIVA intervals (adthe_main_loop)
566        into separate model executions.
567        This enables better tuning of DIVA to given queue sizes.
568      o Loss of cost function value in consecutive DIVA runs is
569        fixed by storing to 'costfinal' file.
570      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
571        beginning/end of adjoint integration is accounted for.
572      The current changes apply to TAF-1.4.26.
573      TAF has one remaining bug, requiring one manual change
574      (see MITgcm manual).
575    o cal: synchronized between MAIN and ecco-branch
576    
577    checkpoint48i_post
578    o Changes to restore differentiability of code w.r.t. previous tag
579      (mostly adding new routines to make list and replacing
580      pressure by totPhiHyd).
581    o Updated and merged grdchk package
582      - has both ADM and TLM checks
583      - works for single- and multi-proc.
584      - output cleaned
585      - worked successfully for parallel DIVA
586    o genmake:
587      - Adding -platform=SP4
588      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
589    o Modif. for DIVA:
590      ctrl_unpack should not be called in intermediate DIVA interval.
591      (similar thing would apply for active files such as
592      tbar, sbar, psbar, which should not be reinitialised;
593      only relevant for ecco-branch)
594    
595    checkpoint48h_post
596    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
597    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
598    o Added SEAICE_initialHEFF to pkg/seaice
599    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
600    
601    checkpoint48g_post
602    --- EOS:
603    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
604      store total Potential in totPhyHyd for diagnostics & EOS.
605    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
606    --- Pressure/geopotential gradient:
607    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
608    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
609      ( changes results of global_ocean_pressure )
610    o NLFS + z-coord.: add eta*Rho' contribution.
611    o accurate phiHyd when using interface-W at the middle between 2 centers
612     ( changes results of ideal_2D_oce )
613    o includes r* 2nd term in potential gradient.
614    
615    checkpoint48f_post
616    Merging from release1_p12:
617    o Modifications for using pkg/exf with pkg/seaice
618      - improved description of the various forcing configurations
619      - added basic radiation bulk formulae to pkg/exf
620      - units/sign fix for evap computation in exf_getffields.F
621      - updated verification/global_with_exf/results/output.txt
622    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
623      (SBO) core products, including oceanic mass, center-of-mass,
624      angular, and bottom pressure (see pkg/sbo/README.sbo).
625    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
626      to avoid negative values in shallow regions.
627      - updated verification/natl_box/results/output.txt
628      - updated verification/lab_sea/results/output.txt
629    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
630    o Added useSingleCpuIO option (see PARAMS.h).
631    o Updated useSingleCpuIO option in mdsio_writefield.F to
632      work with multi-field files, e.g., for single-file pickup.
633    o pkg/seaice:
634      - bug fix in growth.F: QNET for no shortwave case
635      - added HeffFile for specifying initial sea-ice thickness
636      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
637    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
638      kpp_transport_t.F, forward_step.F, and the_main_loop.F
639    o pkg/seaice:
640      - adjoint-friendly modifications
641      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
642    
643    checkpoint48e_post
644    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
645    o dynamics: change definition of computational domain & adapt mom_fluxform
646      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
647    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
648        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
649        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
650        global_ocean.90x40x15 global_with_exf global_ocean_pressure
651        inverted_barometer solid-body.cs-32x32x1
652      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
653    
654    checkpoint48d_post
655    o in preparation for r*:
656     a) use pre-computed gradient of hydrostatic potential:
657        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
658     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
659        => affects results of glob_oce_pressure (different truncation error)  
660      update output.txt of ideal_2D_oce & global_ocean_pressure
661    
662    checkpoint48d_pre
663    o in preparation for r*:
664      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
665      pass the 2 comp. of the grad. as arguments to momentum S/R.
666      but for the moment, only used if it does not change the results.
667    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
668    
669    checkpoint48c_post
670    Modifications in treatment of initial flux forcing controls
671    to avoid extra storing of flux fields.
672    
673    checkpoint48c_pre
674    o Added tidal_basin_2d experiment (currently 1D!)
675    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
676    
677    checkpoint48b_post
678    o r* coordinate added in #ifdef NONLIN_FRSURF block.
679     (modification to pressure gradient not yet implemented)
680    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
681      (for U & V) that are used for vertical advection of momentum.
682    
683    checkpoint48a_post
684    o In preparation for r*, use temp. array to compute vertical transport
685       in flux-form momentum pkg. => change results of few test-exp.
686      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
687                        lab_sea, natl_box & plume_on_slope
688    
689    checkpoint48
690    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
691    
692    checkpoint47j_post
693    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
694    o moved adexch from forward_step to addummy_in_stepping
695    o added exch in ctrl_map_...
696    o aveFreq.=0. at end of cost_final to avoid overwrite in
697      reverse checkpointing loop
698    o Yet more changes in gmredi:
699      * adgmredi_calc_tensor
700        avoiding all recomputation of gmredi_slope_limit
701      * adgmredi_x/y/rtransport
702        added flag for excessive storing to avoid recomp. of
703        u/v/rtans, dTdx/y/z
704        -> this is not really necessary and very memory-consuming
705      * adgmredi_slope_psi:
706        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
707      * gmredi_slope_limit
708        re-activated full calculation of taperfct for case 'ac02'
709    o updating verification/ adjoints of carbon, global_ocean.90x40x15
710    
711    checkpoint47i_post
712    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
713    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
714      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
715    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
716    o gmredi: fix few bugs.
717    
718    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
719    This will be a good checkpoint to plug into the ecco-branch.
720    o few modif.'s to get latest version adjointed
721      (mainly kick out code in ini_linear_phisurf)
722    o modif's to run adjoint with exactConserv
723    o case GM_BOLUS_ADVEC should be cleaned
724      S/R gmredi_slope_psi should be cleaned
725    o verification/carbon now has exactConserv=.TRUE.
726    
727    checkpoint47g_post
728    o time-average AIM output: becomes independent from statvars time-average
729      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
730    o After TAF bug fix:
731      Tested adjoint of gmredi package.
732      Tests were done with checkpoint47 rather than with latest
733      checkpoint47f_post since the latter is broken for the adjoint
734      verification/carbon/ contains both ADM and TLM gradient checks.
735    Here they are, before they get changed/lost/stolen.
736    Mostly modif.'s to fix numerical sensitivities.
737    Gradient checks OK for
738    - GM_taper_scheme:
739      * clipping
740      * ac02
741      * linear
742      * glw91
743      * dm95
744      * ldd97
745    - GMREDI_OPTIONS:
746      * GM_VISBECK_VARIABLE_K
747      * GM_NON_UNITY_DIAGONAL
748      * GM_EXTRA_DIAGONAL
749      * GM_BOLUS_ADVEC
750    in conjunction with data.gmredi parameters to be checked in
751    in a few minutes under verification/carbon/code/
752    
753    checkpoint47f_post
754    Merging from release1_p10:
755    o modifications for using pkg/exf with pkg/seaice
756      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
757        and SEAICE_EXTERNAL_FLUXES
758      - pkg/exf CPP options EXF_READ_EVAP and
759        EXF_NO_BULK_COMPUTATIONS
760      - usage examples are Experiments 8 and 9 in
761        verification/lab_sea/README
762      - verification/lab_sea default experiment now uses
763        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
764    
765    checkpoint47e_post
766    o created a tag prior to creating a branch
767    
768    checkpoint47d_post
769    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
770      at the bottom boundary had an erroneous half slip boundary condition
771    o added bottom drag and no slip boundary condition capabilities to
772      oceanic pressure coordinates code
773    o added new verification experiment global_ocean_pressure, this experiment is
774      also described in the tutorial section of the manual
775    checkpoint47d_pre
776    
777    checkpoint47c_post
778    o Added a verification experiment for a global cubed-sphere ocean run
779      -  verification/global_ocean.cubed32x32x30
780      -  uses pkg/therm_seaice and pkg/bulk_forcing
781    
782    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
783    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
784      when using P-coordinate; only implemented for atmospheric config.
785    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
786      NOTES: requires option NONLIN_FRSURF to be "#define".
787    o update advect_xz/results/output.txt (left from checkpoint44g_post)
788    
789    checkpoint47b_post
790    Merging from release1_p9:
791    o pkg/seaice
792      - removed GOTO's and added taf directives
793      - double precision constants to reduce the g77 (Linux)
794        to F77 (SGI) differences reported in release1_p8
795    o tools/genmake
796      - added SGI options
797    o verification/testscript
798      - updated to that of checkpoint47a_post
799    o verification/global_ocean.90x40x15/input/eedata
800      - modified for SGI f77 compatibility
801    o verification/lab_sea
802      - added description of sea-ice model
803      - added missing matlab routines
804      - added test of thermodynamics parallelization
805    
806    checkpoint47a_post
807    o new pkg: aim_v23
808     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
809       for now, keep the same surface forcing as before.
810     - Part-Cell implemented into AIM; check that Heat & Water are conserved
811     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
812     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
813    o add diagnostic of surface correction term in monitor output
814    
815    o bulk_force and therm_seaice
816    - Two packages:  bulk_force (Bulk forcing)
817      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
818    - Earlier integration from Stephaine Dutkiewicz
819      and Patrick Heimbach.
820    - Two ifdef statements for compile time,
821       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
822    
823    checkpoint47
824    differentiable version of checkpoint46n_post
825    o bug fix in quasihydrostaticterms
826    o * "clean" adjoint code (in terms of extensive recomputations)
827        can now be obtained for all GMREDI options (i.e. for
828        - GM_VISBECK_VARIABLE_K
829        - GM_NON_UNITY_DIAGONAL
830        - GM_EXTRA_DIAGONAL
831        - GM_BOLUS_ADVEC )
832      * However, wrong gradient check problem remains unsolved.
833      * New CPP options have been introduced for different
834        tapering schemes
835    o external_fields_load now part of differentiation list
836    o pressure needs multiple storing;
837      would be nice to have store_pressure at beginning or
838      end of forward_step, e.g. by having phiHyd global (5-dim.)
839      (NB: pressure is needed for certain cases in find_rho,
840      which is also invoked through convective_adjustment).
841    o recomputations in find_rho for cases
842     'JMD95'/'UNESCO' or 'MDJWF' are OK.
843    o #define ATMOSPHERIC_LOADING should be differentiable
844    o ini_forcing shifted to begining of initialise_varia
845    o Incorporating QNVS line search routines into MITgcm
846      (this is separate code, and therefore not under pkg)
847      lsopt/, optim/
848    o Updated verification/carbon/
849      - #define GM_VISBECK_VARIABLE_K
850      - GM_taper_scheme    = 'ldd97'    
851    
852    checkpoint46n_post
853    Merging from release1_p8:
854    o verification/natl_box:
855      updating new external_fields_load routine
856    o New package: pkg/seaice
857      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
858      The sea-ice code is based on Hibler (1979-1980).
859      Two sea-ice dynamic solvers, ADI and LSR, are included.
860      In addition to computing prognostic sea-ice variables and diagnosing
861      the forcing/external data fields that drive the ocean model,
862      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
863      The implied surface heat flux is then stored in variable
864      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
865      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
866      non-local transport term.  Because this call precedes model
867      thermodynamics, temperature under sea-ice may not be "exactly" at
868      the freezing point by the time theta is dumped or time-averaged.
869      N.B.: fairly large differences in accuracy occur across
870            different platforms/compilers; comparison between
871            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
872            generated output gives:
873       T           S           U           V
874      C D M    c        m  s        m  s        m  s        m  s
875      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
876      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
877      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
878    
879      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
880    o GAD:
881      - generated new common blocks to account for call of
882        same gad routines with differing traceridentities
883        (needed to modify tracerIdentity indices in GAD.h)
884      - generated separate common blocks for case useCubedSphereExchange
885        (Department of Futurology)
886      - parameter lists to gmredi_?transport: added tracerIdentity
887      - added new key indices to tamc.h
888    o external_fields_load:
889      - added this routine to TAF list
890      - needed to make some common blocks global and additional storing
891        along the same lines as exf package (checkpoint_lev?_directives.h)
892    o exf:
893      updated external forcing package
894      - bug fixes carried over from ecco-branch
895        (missing OBCS_OPTIONS.h in two routines)
896      - enable easy to use "no forcing".
897      - added exf I/O for atmospheric loading
898      - added exf I/O for runoff data
899      - transfered scaling between exf <-> MITgcm to exf namelist
900    o Adding new verification experiment global_with_exf.
901      This verification experiment is almost identical to the
902      global_ocean.90x40x15 experiment, except that it uses
903      the exf (and cal) package instead of the
904      external_fields_load routine (cf README file).
905    
906    checkpoint46m_post
907    o modified testscript to return -- when there are no lines of "%MON" output
908    o added new flag "quasiHydrostatic" for QH mode
909      and new routine quasihydrostaticterms()
910    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
911      New routine: mom_u_coriolis_nh()
912    o fixed sign of non-hydrostatic metric terms in u and v equations.
913      Depend on correct sign of gravitySign.
914    o added work.pc* to .cvsignore in aim directories using ifc
915    o introduced flag for controllin non-hydrostatic metric terms
916    o removed gravitySign from PARM04
917    o switched to g77/ifc from pgf77 in aim experiments
918    
919    checkpoint46l_post
920    o made convective adjustment work with pressure coordinates:
921     - changed the direction of k-loop in convective_adjustment.F for the
922       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
923     - adjusted the reference pressure k-index in convective_adjustment.F
924     - adjusted the convection condition in convect.F (in analogy to
925       calc_ivdc.F)
926     - convective_adjustment no longer computes anything on the halos
927     - removed the warnings about negative salinity from find_rho.F and
928       find_alpha.F; instead the new routine look_for_neg_salinity, called
929       at the beginning of find_rho, find_alpha, and find_beta, does a
930       check of the entire slice, if CPP-option
931       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
932    checkpoint46l_pre
933    
934    checkpoint46k_post
935    o fixed the verification/global_ocean.90x40x15 experiment:
936     - new bathymetry (the world according to A., JMC, and M.)
937     - new initial fields and forcing fields (*.bin files)
938     - new POLY3.COEFFS (for the next release one should switch to a full
939       equation of state: JMD95P or MDJWF)
940     - fixed several errors and redundancies in the data file
941     - experiment uses looped cells
942     - added matlab directory with diagnostic scripts for plotting of output
943    
944    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
945     - read AIM physics parameters from a file (data.aimphys)
946     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
947    
948    checkpoint46j_post
949    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
950    o move wVel computation at the end of the time step, in S/R integr_continuity
951    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
952    o update timeave pkg for wVel diagnostic.
953    checkpoint46j_pre
954    
955    checkpoint46i_post
956    o Clean up AIM package (and keep the results unchanged):
957      include CPP_OPTION and use IMPLICT NONE in all routines ;
958      declare all the variables _RL ; use _d 0 for all numerical constants.
959      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
960    
961    checkpoint46h_post
962    o cleaned up the use of rhoNil and rhoConst.
963      - rhoNil should only appear in the LINEAR equation of state, everywhere
964        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
965        and the dynamical equations are all divided by rhoConst
966    o introduced new parameter rhoConstFresh, a reference density of fresh
967      water, to remove the fresh water flux's dependence on rhoNil. The default
968      value is 999.8 kg/m^3
969    o cleanup up external_forcing.F and external_forcing_surf.F
970      - can now be used by both OCEANIC and OCEANICP
971    checkpoint46h_pre
972    
973     Added code to convert surface volume flux (fresh water) into
974     a mass flux when using P coordinates in the ocean (OCEANICP).
975     Note: It assumes you have set rho0=rhoConst=density of fresh water.
976    
977    checkpoint46g_post
978    o Include a new diagnostic variable phiHydLow for the ocean model
979      - in z-coordinates, it is the bottom pressure anomaly
980      - in p-coordinates, it is the sea surface elevation
981      - in both cases, these variable have global drift, reflecting the mass
982        drift in z-coordinates and the volume drift in p-coordinates
983      - included time averaging for phiHydLow, be aware of the drift!
984    o depth-dependent computation of Bo_surf for pressure coordinates
985      in the ocean (buoyancyRelation='OCEANICP')
986      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
987        Theta, Salinity, and Pressure in the parameter list. This routine is
988        presently contained in find_rho.F. This routine does not give the
989        correct density for 'POLY3', which would be a z-dependent reference
990        density.
991    o cleaned up find_rho
992      - removed obsolete 'eqn' from the parameter list.
993    o added two new verification experiments: gop and goz
994      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
995    checkpoint46g_pre
996    
997    checkpoint46f_post
998    o Enable tangent linear (forward mode) gradient checks:
999      - extended active file handling to g_... files
1000      - added TANGENT_SIMULATION to theSimulationMode
1001      - extended grdchk package accordingly
1002    o added tangent linear setup in verification/carbon/code_ftl
1003    o added adjoint setup in verification/front_relax/code_ad
1004    
1005    checkpoint46e_post
1006    o Added new equation of state -> MDJWF
1007      - EOS of McDougall et al., 2002, JAOT, submitted
1008      - caveat: the equation of state is only valid for a smaller (more
1009        realistic?) range of values than JMD95P/Z and UNESCO
1010      - added masks to the calculation of pressure in store_pressure
1011      - added more check values for density in check_eos (ini_eos.F), some of
1012        the old check values are out of the range of the MDJWF-eos, so don't
1013        expect perfect matches for those
1014    checkpoint46e_pre
1015    
1016    checkpoint46d_post
1017    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1018      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1019      case of pressure coordinates. eosType='JMD95Z' in
1020      combination with buoyancyRelation='OCEANICP' now causes an error.
1021    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1022      in find_alpha/beta.
1023    checkpoint46d_pre
1024    
1025    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1026      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1027    
1028    checkpoint46c_post
1029    o Changes necessary for ocean in p-coordinates
1030     -  Added new buoyancy relation = 'OCEANICP'
1031     -  Added new parameters = gravitySign (this used to be contained inside
1032        the factor dRdZ which I added when we first switched to R coordinates).
1033     X GM/Redi is not compatible (yet)
1034     X bottom drag and no-slip need to be debugged.
1035    checkpoint46c_pre
1036    
1037    checkpoint46b_post
1038    o Added new equation of state -> JMD95Z and JMD95P
1039      - EOS of Jackett and McDougall, 1995, JAOT
1040      - moved all EOS parameters into EOS.h
1041      - new routines ini_eos.F, store_pressure.F
1042    o Added UNESCO EOS, but not recommended because it requires
1043      in-situ temperature (see JMD95)
1044    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1045      unesco.f to be used with POLY3
1046    checkpoint46b_pre
1047    
1048    checkpoint46a_post
1049    o Added (atmospheric) pressure loading
1050      - new field in FFIELDS.h, etc...
1051      - new cpp flag ATMOSPHERIC_LOADING
1052    o Changed hFacC to _hFacC in calc_phi_hyd.F
1053    o Added SHORTWAVE_HEATING to some files for consistency
1054    checkpoint46a_pre
1055    
1056    checkpoint46
1057    further merges from release1_p5
1058    o new ctrl package
1059      - adopted from ECCO environment to enable optimization
1060      - added Eliassen Palm fluxes to controls
1061    o added Eliassen Palm flux controls to gradient check package
1062    o cost package
1063      - Compatible with new ctrl package
1064      - added Eliassen Palm cost hooks
1065      - modif's of existing cost functions
1066    o Adjoint-related bug fixes in kpp:
1067      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1068      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1069    o autodiff package
1070      - flow directives:
1071        + new for S/R do_the_model_io
1072        + enhanced for S/R checkpoint
1073        + new gmredi.flow
1074      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1075        disable adcommon.h/g_common.h by default.
1076      - fixed problem for adjoint of global_max
1077    o modified verification/carbon/
1078    o New setup for adjoint of global_ocean
1079    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1080    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1081    o incorporated hooks for sponge layer code (external_forcing.F)
1082    
1083    checkpoint45d_post
1084    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1085    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1086      (affects plume_on_slope "cg2d" output)
1087    o add new parameter deltaTfreesurf for free-surface time stepping
1088    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1089    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1090    o change phiMin in exp1 (to agree with documentation)
1091    o add new flags:
1092     - T,S forcing inside/outside Adams-Bashforth
1093     - turn off temp,salt advection and/or forcing
1094     - for each tracer, define internal flag for multiDimAdvection & A-B
1095    o monitor: change definition of KE to check conservation of Energy
1096    
1097    checkpoint45c_post
1098    o Removed f90 comments ("!")
1099    o Modified initialisations to enable exf package for MITgcm
1100      (without invoking ECCO_PACKAGE).
1101    o modifications to gradient check package (Martin Losch)
1102      - enable centered differences
1103      - modified format of standard output
1104    
1105    checkpoint45b_post
1106    o cleaned exchange calls in cg2d
1107    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1108    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1109      to configure barotropic setup (Martin Losch)
1110    o moved some initialisations within bi,bj loop in dynamics
1111      (TAF flow dependency)
1112    o in initialise_varia, moved call packages_init_variables
1113      before convective_adjustment_init
1114      (corresponding adjustment of TAF tape initialisation).
1115    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1116    
1117    checkpoint45a_post
1118    o compute Rho over the whole domain (extend iMin,jMin indices)
1119    o specific exchange for X-slice domain (case Ny=1)
1120    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1121    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1122    
1123    checkpoint44h_post = checkpoint45
1124    o Fix to restore differentiability:
1125      place at which packages_init_variables is called in
1126      initialise_varia is crucial for reverse control flow.
1127    o modifications in GMRedi to enable stable adjoint
1128      (corresponding modif's in thermodynamics, dynamics)
1129    o added missing hook for sponge layer code in external_forcing
1130    o modified test cost functions
1131    o storing in gad_advection (plus removal of write(0,*)!
1132    o missing headers TR1.h added in convective_adjustment routines
1133    o errorMessageUnit set non-equal zero in eeboot
1134      (conflict on some platforms, e.g. IBM SP3)
1135    o modified carbon verif.
1136    
1137    checkpoint44h_pre
1138    o vertical grid option: allow to put the Interface at the middle between
1139      2 cell-centers ; replace delZ in pkg/kpp by drF.
1140    o GM Advective form: Tracers are advected using the residual transport (=
1141      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1142    
1143    checkpoint44g_post
1144    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1145      results) ; ifdef missing in thermodynamics.F
1146    
1147    checkpoint44f_pre,checkpoint44f_post
1148    o added PTRACERS package
1149      This allows an arbitrary number of passive tracers to be integrated
1150      forward simultaneously with the dynamicaly model.
1151      + Implemented so far:
1152        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1153        - I/O and checkpointing
1154        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1155      + Not implemented so far:
1156        - KPP
1157        - OBCS
1158      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1159        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1160        line in data.pkg.
1161      + This package is disabled by default since it increases storage.
1162    
1163    
1164    o testscript: added -cleanup option
1165    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1166                 b) enable to filter 2D fields.
1167    
1168    checkpoint44e_pre,post
1169    o re-wrote convective adjustment to use pre-calculated weights
1170      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1171      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1172      Original calls to convect() still in place.
1173    
1174    chkpt44d_pre,post
1175    o added missing EXCLUDE_MONITOR flags
1176    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1177      (incompatible typ in MIN/MAX expressions caused problems
1178      on IBM SP3)
1179    o in genmake added variable MAKEDEPEND
1180      plus resetting for case SunOS
1181    o added timer_stats.c routine for IBM SP3
1182    o removed variables in dynamics
1183    !!! I forgot to create tag chkpt44d_pre !!!
1184    !!! But chkpt44d_pre = chkpt44c_post    !!!
1185    
1186    o real fresh water flux implemented with non-linear free-surface.
1187    
1188    chkpt44c_pre,post
1189    o few fix (mask in shap_s2, EmPmR in external_field_load,
1190      USE_NATURAL_BCS in solve_for_P);
1191    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1192    
1193    checkpoint44b_pre/_post
1194    o merge of relevant stuff from the ecco-branch:
1195      - genmake: removed $S64 overwrite for case SunOS
1196      - pkg/exf: update and corrections for field swapping and obcs
1197      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1198                  harmonized between ECCO and MITgcm
1199      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1200                      updated checkpointing_lev... lists for obcs
1201      - model/src: minor changes in forward_step, plot_field
1202                   added directive for divided adjoint in the_main_loop
1203      - pkg/mdsio: added mdsio_gl_slice
1204    
1205    o check parameters & config (chkpt44a_pre,post)
1206    o OBC and NonLin_FrSurf.
1207    
1208    checkpoint44
1209    o fix bug in mom_vi_del2uv
1210    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1211    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1212    o update AIM experiments (NCEP input files)
1213    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1214    o added some stuff for AD
1215    
1216    checkpoint43
1217    o added two new advection tests
1218    o added global 4x4 degree ocean test
1219    o added test of H&S94 with free surface on cube
1220    o some final mods for gradient check, adjoint,...
1221    
1222    checkpoint42
1223      Fixed AD-related problems:
1224    o Store directives up-to-date with re-arranged Adams-Bashforth
1225      (mainly thermodynamics.F)
1226    o New store directives for multi-dim. advection schemes
1227      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1228      * new common block and key passkey
1229      (mainly gad_advection.F)
1230    o Modified store directives for split of dynamics/thermodynamics
1231      for the case ALLOW_KPP
1232    o Cleaned argument list for timestep_tracer.F
1233    
1234    checkpoint41
1235    o re-formatted/added comments in prologues of key subroutines
1236      to work with protex
1237    
1238    checkpoint40
1239    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1240    o added FLT (floats) package from Arne along with demo. experiment
1241    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1242      implementation of forward-in-time forcing terms
1243    o more mods for non-linear free-surface including new variable
1244    o modified multi-dim method to work on cube
1245    o bug fix in KPP (from DM)
1246    
1247    checkpoint40pre9
1248    o added DST advection schemes
1249    o fix MPI bug on SGI's
1250    o modifications for non-linear free-surface
1251    o fixed conditionals for fixed flow/passive tracer only mode
1252    o added tension/strain form of stress tensor
1253    o changes to commenting of arguments for TAF/TAMC
1254    o added/updated many matlab scripts
1255    o added multi-dimensional advection method for tracers
1256      
1257    checkpoint40pre8
1258    o new package rw/
1259      Added method for dumping intermediate local arrays:
1260      mdsio_writetile - same as mdsio_writefield except works from inside
1261                        bi,bj loop
1262      mdsio_writelocal - same as mdsio_writetile except works for local
1263                         arrays
1264      write_local_r? - higher-level wrapper for mdsio_writelocal
1265      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1266      Example given at end of mom_vecinv.F that dumps some local arrays.
1267    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1268      control flux-form versus vector invariant code.
1269      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1270      or genmake -DISABLE ...
1271    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1272      (additional storing is now needed for case vecinv;
1273      currently nothing implemented to switch this storing off
1274      in case fluxform is used since no CPP flag available).
1275    
1276    checkpoint40pre7
1277    o bug fix in dynamics.F
1278      calc_viscosity called before k=1,Nr loop.
1279    o added some #ifdef's ALLOW_PASSIVE_TRACER
1280    o cleaned initialisations in ctrl_map_ini
1281      related to TAF
1282    
1283    checkpoint40pre6
1284    o split dynamics into thermodynamics & dynamics
1285    o corresponding split of calc_diffusivity into
1286      calc_diffusivity, calc_viscosity
1287      (kpp_calc_diff, kpp_calc_visc).
1288    o Added diffkr, kapgm to control variables
1289    o bug fix in gmredi_slope_limit for ldd97
1290    
1291    checkpoint40pre5
1292    o proper initialization of Adams-Bashforth time stepping
1293      + uses forward step for very first step of model (iter=0)
1294    o re-generated *all* output since almost all output is modified by this
1295      change (sorry but we've been putting this one off for about 2 years)
1296      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1297        *not* regenerated since they are already out of date and I don't
1298        want to create the impression that they are suddenly working.
1299    o removed KAP stuff for DEC's
1300    o modified/added many .cvsignore files in */code and */input
1301    o added new expt "solid-body.cs-32x32x1"
1302      + this uses an alternative form of ini_curvilinear_grid.F which
1303        is not necessarily any better than the current one...
1304    
1305    checkpoint40pre4
1306    o added re-initialisations of utrans,vtrans,rtrans in
1307      calc_common_factors which are crucial for TAF.
1308    o extended iMin,jMin range for calc_common_factors,
1309      calc_diffusivity
1310    o added option ALLOW_PASSIVE_TRACER
1311    o a few minor updates and fixes
1312    
1313    checkpoint40pre3
1314    o created calc_gtr1.F for gad package
1315    o split the_main_loop and re-introduced forward_step
1316    o some recomputations of nIter0 for TAMC
1317    
1318    checkpoint40pre2
1319    o Updated to latest branch of AJA, JMC
1320    o Added gradient check package
1321    o Added routines for passive tracer handling
1322    o Added carbon sequestration sensitivity experiment
1323    
1324    checkpoint39
1325     o Modifications and fixes to support TAMC
1326       (mainly missing or wrong directives)
1327     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1328       in addummy_in_stepping
1329     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1330     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1331     o Included following packages:
1332       cal: calendar
1333       exf: external forcing
1334       ecco: essential routines to control use of cal, exf
1335             (NB: this is not the full ECCO environment)
1336     o disabled some packages by default in genmake
1337    
1338  checkpoint38  checkpoint38
1339   o see notes_c37_adj.txt   o see notes_c37_adj.txt
1340   o corrected wrong layer index in external_forcing_t   o corrected wrong layer index in external_forcing_t

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