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revision 1.21 by adcroft, Tue May 18 18:31:31 1999 UTC revision 1.246 by jmc, Wed Jan 21 21:37:32 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint52i_post
7    o removed CPP_EEOPTIONS.h from verification/*/code
8    o updated the tiling for global_ocean_pressure
9    checkpoint52i_pre
10    
11    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
12      the old pkg/aim).
13    
14    checkpoint52h_pre
15    o shortened offending lines in exch2_send_rx?.template
16    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
17    o genmake2: add build & execute test for NetCDF code
18    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
19      old grid files, moved CPP_EEMACROS.h to pkg/exch2
20    o added useSingleCPUIO flag to monitor.F and mon_out.F
21    o added temporary hack for sea-ice dynamics on the cube:
22      metric terms are ignored and it is assumed that
23      there is no sea-ice on cube faces 1, 2, 4, and 5.
24    
25    checkpoint52f_post
26    o added exch2 cube routines to pkg/exch2
27    o modified hs94.cs-32x32x5 to use it
28    o added new grid files to hs94.cs-32x32x5
29    checkpoint52f_pre
30    
31    checkpoint52e_post
32    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
33      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
34    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
35      to work with implicit vertical advection and AB ;
36    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
37    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
38     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
39    checkpoint52e_pre
40    
41    o fix bug in impldiff when Nr=1 or Nr=2.
42    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
43    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
44    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
45      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
46    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
47    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
48    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
49    
50    checkpoint52d_post
51    o re-tiled many expts to allow comparison in multi-processor mode
52      - updated output accordingly
53      - changed hs94.128x64x5 to use intial T from file rather than use the
54        random number generator
55    o add infrastructure in model routines for fizhi and gridalt packages
56    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
57    o changes to permit hi-res, cubed-sphere, configuration
58      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
59      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
60      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
61        of surface winds for the cube
62      (A verification experiment, based on global_ocean.cs32x15, but with
63       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
64       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
65       complete with example surface forcing files and matlab scripts to look
66       at the output and compare it with that of global_ocean.cs32x15.)
67    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
68       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
69       to conform to the common rule.
70    o check-in the first version of the coupler + interfaces for multi-components
71       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
72       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
73       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
74       - ocean and atmos. share the same horizontal grid (no interpolation).
75       - exchanges between component and coupler is done in forward_step
76    o new verification experiment, cpl_aim+ocn:
77       coupled ocean - AIM atmosphere on cs32 grid.
78    
79    checkpoint52d_pre
80    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
81    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
82    
83    checkpoint52c_post
84    o Fixing OPTIONS files for use of exf:
85      - ALLOW_ECCO not needed
86      - ECCO_CPPOPTIONS.h should not be included from
87        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
88        as has been the case in the past
89      - All cal/exf related options are currently set in
90        single header file. Should remain so until we
91        agree on a consistent new policy.
92    o Removed all CPP options for cal package.
93      cal has no more CPP options.
94    o modified STOREs in GAD_ADVECTION
95    o corrected key comp. for passkey
96    
97    checkpoint52b_post
98    o new version: "thsice" of thermodynamic sea-ice pkg:
99     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
100     - modify fluxes but do not change theta directly;
101     - light cleaning of bulk_force pkg (still needed with thsice).
102     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
103       + output_thsice.txt to test thsice & bulk_force pkgs.
104    o put back grid & coriolis monitor output.
105    checkpoint52b_pre
106    
107    o call "do_the_model_io" at the beginning (=> dump initial state)
108    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
109    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
110      (need info on NUMBER_OF_PTRACERS)
111    o missing PTRACERS headers in some routines
112    o default tamc.h in pkg/autodiff supposed to crash
113      to ensure proper customization
114    
115    checkpoint52a_post
116    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
117      - moved surfaceTendencyTice from pkg/seaice to main code
118      - subroutine FREEZE_SURFACE now limits only surface temperature
119        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
120        => new output.txt for global_ocean.cs32x15 & global_with_exf
121      - keep the old version of FREEZE for backward compatibility;
122        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
123      - corresponding modifs for TAF directives
124    o added surface flux output variables to TIMEAVE_STATVARS
125    o time-averaged output for pkg/ptracers
126    o fix problem with ECCO-related divided adjoint
127      snapshot file was missing some ad-variables,
128      but no warning issued by TAF
129    
130    checkpoint52a_pre
131    o some bug fixes for #undef REAL4_IS_SLOW
132    
133    checkpoint52 = ecco_c52_e35
134    o after testing adjoints of checkpoint51u_post
135    
136    checkpoint51u_post
137    o this is the post-merge tag of the ecco-branch
138      (needs another clean checkout and re-testing)
139    o various natl_box_adjoint configs and results
140      but no input fields
141    o obcs adjoint not yet merged!
142    o adding ECCO global 1x1 and 2x2 degree configs
143    o updated/extended some store directives for seaice
144    o pkg/ecco now containes ecco-specific part of cost function
145    o top level routines the_main_loop, forward_step
146      supersede those in model/src/
147      previous input data.cost now in data.ecco
148      (new namelist ecco_cost_nml)
149    o in ctrl/ cleaned some cross-dependencies and updated CPP options
150    
151    checkpoint51t_post
152    o this is the pre-merge tag of the ecco-branch
153    
154    checkpoint51s_post
155    o cleanup: removed various obsolete #define-s
156    o pkg/grdchk
157      - renamed 'ph-grd 3' to 'grad-res'
158      - merged from ecco-branch
159        (remaining bug fixes for obcs gradient checks)
160      - additional high-precision output for testreport
161        (grep for 'precision_grdchk_result')
162    
163    checkpoint51r_post
164    o cleaned up or removed CPP_OPTIONS.h files
165    o updated results for some of the tests to reflect the new
166      optfiles (-ieee: -O0 instead of -O3)
167    
168    checkpoint51q_post
169    o cd_code:
170      - moved cd_scheme.F -> cd_code_scheme.F
171      - separate read_checkpoint from cd_code_ini_vars.F
172      - separated cd_code part from write_checkpoint
173      - updated AD_SOURCE, generated .flow
174      - added CD_CODE_VARS.h to the_main_loop
175      - Moving cd_code specific store dir.s to pkg/cd_code
176    o ctrl package totally restructured
177      - pack/unpack now optional and decoupled from
178        xx_/adxx_ I/O
179      - ctrl_pack/unpack cleaned
180        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
181      - confined inclusion of AD_CONFIG.h to where necessary.
182    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
183    
184    checkpoint51p_post
185    o create initial cd_code package
186      - WARNING: the initialization of fields within packages
187        is broken because INI_FIELDS (where READ_CHECKPOINT is
188        called) is called *before* PACKAGES_INIT_VARIABLES.
189        This seems to be backwards since
190        1) its important to initially zero the entire field including
191           the "halo" region
192        2) zeroing needs to be done *before* reading pickup info
193           and the pickup call might or might not happen in any
194           particular run
195      - this needs an overhaul for R2
196    o cleanup verification/*/code/GMREDI_OPTIONS.h
197    o cleanup testreport
198    
199    checkpoint51o_post
200    o bringing AD-related verif's up to date with genmake2
201      - carbon/
202      - global_ocean.90x40x15/
203      - hs.94.1x64x5/
204      - (front_relax/ )
205    o (more) consistent directory structure for AD-related verif.'s
206    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
207    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
208    o bug fix in find_alpha.F for MDJWF:
209      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
210        change rho -> rho-rhoConst
211      - replace call find_rho to find_rhonum
212    o initialisation of rFlx extended to full array (required by TAF)
213      and shifted to thermodynamics
214    o removed PTRACERS.h in ptracers routine
215    o added surfacetendencyPtr to S/R parameter list pracers_forcing
216    o Correcting initialisations for fVerU, fVerV.
217    o helping TAF to recognize dependency on kUp for
218      fVerU, fVerV
219    o Replacing delZ by delR in pkg/ctrl/
220    checkpoint51o_pre
221    
222    o undid all of cp51 pending some cleanups and discussion
223    o added the [#include "AD_CONFIG.h"] statement to all files that need
224       it for adjoint/tl #defines
225     o re-worked the build logic in genmake2 to support AD_CONFIG.h
226     o removed tools/genmake since it no longer works
227    
228    checkpoint51n_post
229    o modifications to make FREEZE flux visible to pkg/kpp
230      - moved surfaceTendencyTice from pkg/seaice to main code
231      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
232      - subroutine FREEZE now limits only surface temperature
233        (this means new output.txt for global_ocean.90x40x15,
234         global_ocean.cs32x15, and global_with_exf)
235    o added surface flux output variables to TIMEAVE_STATVARS
236    
237    checkpoint51n_pre
238    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
239    o added [#include "AD_CONFIG.h"] to all files that use the following
240      defines:
241      - ALLOW_ADJOINT_RUN
242      - ALLOW_TANGENTLINEAR_RUN
243      - ALLOW_ECCO_OPTIMIZATION
244    
245    checkpoint51m_post
246    o incorporating changes to get TAMC/TAF working in genmake2
247      - added new TAMC/TAF targets to the Makefile
248      - various cleanups related to package handling
249      - these changes should have no impact on the forward model
250    
251    checkpoint51l_post
252    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
253     - faster algorithm for cal_addtime.F
254     - higher precision arithmetic, where needed
255     - pkg/exf *startdate variables changed from calendar date to
256       model integration time
257    
258    checkpoint51l_pre
259    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
260    o enable to apply restoring on S & T only in a latitude band.
261    o update output (external_forcing_surf modif. change truncation errors)
262       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
263    
264    checkpoint51k_post
265    o change default to: useNHMTerms=.FALSE.
266     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
267       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
268     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
269        exp1, ideal_2D_oce
270     - change data file of oceanic exp (leave the results unchanged for now)
271       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
272    o set gravitySign automatically according to the vertical coordinate used
273      (and change sign: back to "logical" value: +1 when R increases downward)
274    o added an include barrier to the default CPP_OPTIONS.h and
275      removed the #include "PACKAGES_CONFIG.h" from it
276    o fix a bug in mom_fluxform (from chk51j_post)
277    
278    checkpoint51j_post
279    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
280    o adjusted some flow directives (dynamics, thermodynamics)
281    o added cubed-sphere case to test cost function
282    o heckpoint_lev?_directives.h now include
283      pkg-specific directives, whenever those are enabled.
284    o Moving pkg-specific flow directives to corresponding pkg
285      Moving pkg-specific differentiation list to corresponding pkg
286      Moving pkg-specific checkpoint-lev storing to corresponding pkg
287      ---> conventions are
288           - pkg_ad.flow
289           - pkg_ad_diff.list
290           - pkg_ad_check_lev?_dir.h
291    
292    checkpoint51i_post
293    o merge of the branch-genmake2
294      - knowingly breaks the older genmake
295      - automatic generation of all ALLOW_${PKG_NAME} defines
296      - new testreport supersedes older testscript
297    o large number of package inclusion and header cleanups
298    checkpoint51i_pre
299    
300    o new output for adjoin of global ocean vector invariant
301    o fix for checkpoint of thermodynamic seaice and bulk_force
302    o Steph gchem various cleanups
303    
304    checkpoint 51h_pre
305    o fixed some single quotes
306    o modify gchem pkg to be more versatile
307    o modifications to clean up dic pkg
308    o add pkg/cfc
309    
310    checkpoint51g_post
311    o provide links for ARPACK and ADM*TLM
312    o start removing verification/vero/
313    o update AD-related stuff
314      (in particular some IF-statements in model/src/ routines)
315    o adding to verification/global_ocean.90x40x15/ adjoint of
316      vector invariant setup
317    
318    checkpoint51f_post
319    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
320    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
321      of tracer Green's fucntions for ocean inversion project.
322    
323    checkpoint51f_pre
324    o Added on-the-fly spatial interpolation capability
325        "USE_EXF_INTERPOLATION" to pkg/exf.
326      - This is a temporary Cartesian-grid hack until
327        the super-duper ESMF coupler becomes available.
328      - See verification/global_with_exf/README for usage example.
329      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
330        flags and modified pkg/seaice accordingly.
331    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
332        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
333        non-local transport term.
334    
335    checkpoint51e_post
336    o pkg/mom_vecinv:
337      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
338      - add time-ave diagnostic of vorticity advection.
339    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
340    o atmospheric geopotential: - include water vapor effect;
341                                - use p^kappa in p* scaling.
342    o land pkg: read initial state from files.
343    o AIM : add stratospheric drag in the upper level
344    
345    checkpoint51d_post
346    o change function ILNBLNK (=> last non-blank char.) to return zero
347      (instead of the string length) when the string. char is empty
348    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
349    o modif's to restore TAMC compatibility
350      - avoid "_d" constructs in PARAMETER declarations
351      - avoid interrupting lines by comment lines
352    o Use cluster local disks for purely local I/O
353      vs. globally visible disks needed for ctrl stuff
354      (merged from ecco-branch)
355      - new active_file_loc... and mdsio_..._loc routines
356      - affected packages: autodiff, ctrl, grdchk, mdsio
357    
358    checkpoint51c_post
359    o introducing integer flag debugLevel
360      - debLevZero: suppress all output
361      - debLevA: standard
362      - debLevB: equivalent to current debugMode=.TRUE.
363    o introducing pathname variable mdsioLocalDir for mdsio
364      that can be specified at runtime
365      (relevant for cluster I/O to local disk)
366    `
367    >>>checkpoint51b_post
368    adjoint of ptracers
369    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
370    o extended state in checkpoint_lev?, etc.
371    o alternative ctrl/cost with tr1 or ptracer
372    o new comlev1_bibj_ptracers
373    o new ptracers.flow
374    o made ptracers_forcing same as external_forcing_s
375    o added verification for adjoint with ptracers
376      - adm. grdchk fail so far
377      - tlm. grdchk OK
378      - checked tapelev/comlev recomputations: OK
379    <<<checkpoint51b_pre
380    
381    checkpoint51a_post
382    o added code for biogeochemistry package
383      - new pkgs: dic, gchem
384      - new subroutine in ptracers
385    o modify code for biogeo packages
386      - in model/src and pkg/ptracers
387    
388    checkpoint51
389    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
390      - autodiff, ctrl, exf, grdchk, seaice
391      kept separate packages
392      - cost, ecco, obcs
393    o updating verification/internal_wave, verification/lab_sea
394      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
395    
396    checkpoint50i_post
397    o Preparing next differentiable checkpoint and sync
398      of MAIN vs. ecco-branch
399      - 1st step: this one is differentiable
400      - 2nd step: next(! not this) checkpoint will have updated packages
401                  from ecco-branch)
402    
403    checkpoint50h_post
404    o new package "land": provide surface BC for AIM.
405    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
406    o AIM: use true log-P extrapolation for near surface temp (= as in
407        F.Molteni paper) ; update aim.5l_cs output.
408    o New variable in PARM03 for more flexible pickups
409    o somewhat cleaned package initialisation sequence for
410      ctrl/ cost/ ecco/ in packages_... routines
411    
412    checkpoint50g_post
413    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
414      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
415      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
416        made the default because of faster convergence than ADI
417    
418    checkpoint50f_post
419    o exf totally restructured
420      - replaced all exf_set_ routines by one generic exf_set_gen.F
421        and made sure it's still differentiable
422      - split exf_getffields.F into new exf_bulkformulae.F
423      - exf_inscal_/exf_outscal_ suffixes consistent with field names
424      - updated adjoint/makefile and relevant verif. accordingly
425    
426    checkpoint50f_pre
427     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
428          + change Evap over land. (update aim.5l_cs output)
429     o added missing .cvsignores and made uniform across expts
430     o changed configuration of tidal_basin_2d expt
431     o added pkg/debug functions for tracing code in fatal crashes
432     o tidied pkg/monitor to use MONITOR_OPTIONS.h
433     o new fn in pkg/monitor to stop model if solution grows too big
434     o removed lots of single quotes from comments
435    
436    checkpoint50e_post
437    o make KPP work with PTRACERS
438     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
439       nearly a copy of kpp_transport_s
440     - there is no analogue to SurfaceTendencyS, so I have to use
441       gPtr(of the surface layer) instead
442    o add a new platform SunFire+mpi (SunFire 15000) to genmake
443    checkpoint50e_pre
444    
445    checkpoint50d_post
446    o change kpp output from multiple-record state files to single-record state
447      files analogous to write_state.F
448    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
449      analogous to the cg2d-related output.
450    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
451      so that writing to internal file fn (with length 512) fails.
452    checkpoint50d_pre
453    
454    checkpoint50c_post
455    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
456    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
457    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
458    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
459    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
460    
461    checkpoint50c_pre
462    Merging from release1_p13:
463    o bug fix for pkg/seaice dynamic solver
464    o Added SEAICE_initialHEFF to pkg/seaice
465    
466    checkpoint50b_post
467    o store u*,v* in gU,V instead of in guNm1,gvNm1
468    o in order to put the momForcing out of the Adams-Bashforth:
469      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
470      to timestep.F
471    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
472    o re-generate output for highly sensitive test-exp:
473       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
474    
475    checkpoint50b_pre
476    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
477    o corrected CPP option mismatch in exf_Bulk... functions for case
478      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
479    
480    checkpoint50a_post
481    o Bug fix for merging between c50 and KPP.
482      ikey was passed from thermodynamics to kpp_calc via
483      common block rather than being recomputed in kpp_calc,
484      in contradiction with new key itdkey.
485      New key ikppkey created, and tamc.h headers updated.
486    
487    checkpoint50
488    - 2nd step of merge with ecco-branch:
489      merge changes in ecco-branch back into main trunk
490    - bug fix in find_alpha
491    - more storing in gmredi_calc_tensor.F, kpp_routines.F
492    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
493    - merged some sliced AD support routines
494    
495    checkpoint49
496    merged from ecco-branch:
497    o exf:
498      - Enable initialisation of forcing fields to constant
499        (runtime) values.
500      - in exf_getffields.F
501        Reduce i-/j-loop to interior domain, discarding overlaps.
502        That also fixes wrong TAF-key computations for key_1, key_2
503        with bulf formulae.
504      - exf_init.F modify #ifdef for exf_init_evap
505      - exf_getffieldrec.F, ctrl_getrec.F
506        The following INT-usages are not safe:
507          fldsecs  = int(fldsecs/fldperiod)*fldperiod
508          fldcount = int(fldsecs/fldperiod) + 1
509        and were modified.
510    o autodiff: checkpoint_lev...
511      - updated storing for bulk formulae (some arrays were missing)
512      - added state for seaice package
513      - synchronized with main branch
514    o DIVA:
515      Modif.s in
516      - the_main_loop.F
517      - the_model_main.F
518      and added cost_final_restore.F cost_final_store.F
519      o With these changes, it is possible to fully separate
520        the first forward run to compute the cost function (mdthe_main_loop)
521        and adjoint runs over individual DIVA intervals (adthe_main_loop)
522        into separate model executions.
523        This enables better tuning of DIVA to given queue sizes.
524      o Loss of cost function value in consecutive DIVA runs is
525        fixed by storing to 'costfinal' file.
526      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
527        beginning/end of adjoint integration is accounted for.
528      The current changes apply to TAF-1.4.26.
529      TAF has one remaining bug, requiring one manual change
530      (see MITgcm manual).
531    o cal: synchronized between MAIN and ecco-branch
532    
533    checkpoint48i_post
534    o Changes to restore differentiability of code w.r.t. previous tag
535      (mostly adding new routines to make list and replacing
536      pressure by totPhiHyd).
537    o Updated and merged grdchk package
538      - has both ADM and TLM checks
539      - works for single- and multi-proc.
540      - output cleaned
541      - worked successfully for parallel DIVA
542    o genmake:
543      - Adding -platform=SP4
544      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
545    o Modif. for DIVA:
546      ctrl_unpack should not be called in intermediate DIVA interval.
547      (similar thing would apply for active files such as
548      tbar, sbar, psbar, which should not be reinitialised;
549      only relevant for ecco-branch)
550    
551    checkpoint48h_post
552    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
553    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
554    o Added SEAICE_initialHEFF to pkg/seaice
555    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
556    
557    checkpoint48g_post
558    --- EOS:
559    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
560      store total Potential in totPhyHyd for diagnostics & EOS.
561    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
562    --- Pressure/geopotential gradient:
563    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
564    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
565      ( changes results of global_ocean_pressure )
566    o NLFS + z-coord.: add eta*Rho' contribution.
567    o accurate phiHyd when using interface-W at the middle between 2 centers
568     ( changes results of ideal_2D_oce )
569    o includes r* 2nd term in potential gradient.
570    
571    checkpoint48f_post
572    Merging from release1_p12:
573    o Modifications for using pkg/exf with pkg/seaice
574      - improved description of the various forcing configurations
575      - added basic radiation bulk formulae to pkg/exf
576      - units/sign fix for evap computation in exf_getffields.F
577      - updated verification/global_with_exf/results/output.txt
578    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
579      (SBO) core products, including oceanic mass, center-of-mass,
580      angular, and bottom pressure (see pkg/sbo/README.sbo).
581    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
582      to avoid negative values in shallow regions.
583      - updated verification/natl_box/results/output.txt
584      - updated verification/lab_sea/results/output.txt
585    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
586    o Added useSingleCpuIO option (see PARAMS.h).
587    o Updated useSingleCpuIO option in mdsio_writefield.F to
588      work with multi-field files, e.g., for single-file pickup.
589    o pkg/seaice:
590      - bug fix in growth.F: QNET for no shortwave case
591      - added HeffFile for specifying initial sea-ice thickness
592      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
593    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
594      kpp_transport_t.F, forward_step.F, and the_main_loop.F
595    o pkg/seaice:
596      - adjoint-friendly modifications
597      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
598    
599    checkpoint48e_post
600    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
601    o dynamics: change definition of computational domain & adapt mom_fluxform
602      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
603    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
604        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
605        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
606        global_ocean.90x40x15 global_with_exf global_ocean_pressure
607        inverted_barometer solid-body.cs-32x32x1
608      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
609    
610    checkpoint48d_post
611    o in preparation for r*:
612     a) use pre-computed gradient of hydrostatic potential:
613        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
614     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
615        => affects results of glob_oce_pressure (different truncation error)  
616      update output.txt of ideal_2D_oce & global_ocean_pressure
617    
618    checkpoint48d_pre
619    o in preparation for r*:
620      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
621      pass the 2 comp. of the grad. as arguments to momentum S/R.
622      but for the moment, only used if it does not change the results.
623    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
624    
625    checkpoint48c_post
626    Modifications in treatment of initial flux forcing controls
627    to avoid extra storing of flux fields.
628    
629    checkpoint48c_pre
630    o Added tidal_basin_2d experiment (currently 1D!)
631    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
632    
633    checkpoint48b_post
634    o r* coordinate added in #ifdef NONLIN_FRSURF block.
635     (modification to pressure gradient not yet implemented)
636    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
637      (for U & V) that are used for vertical advection of momentum.
638    
639    checkpoint48a_post
640    o In preparation for r*, use temp. array to compute vertical transport
641       in flux-form momentum pkg. => change results of few test-exp.
642      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
643                        lab_sea, natl_box & plume_on_slope
644    
645    checkpoint48
646    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
647    
648    checkpoint47j_post
649    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
650    o moved adexch from forward_step to addummy_in_stepping
651    o added exch in ctrl_map_...
652    o aveFreq.=0. at end of cost_final to avoid overwrite in
653      reverse checkpointing loop
654    o Yet more changes in gmredi:
655      * adgmredi_calc_tensor
656        avoiding all recomputation of gmredi_slope_limit
657      * adgmredi_x/y/rtransport
658        added flag for excessive storing to avoid recomp. of
659        u/v/rtans, dTdx/y/z
660        -> this is not really necessary and very memory-consuming
661      * adgmredi_slope_psi:
662        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
663      * gmredi_slope_limit
664        re-activated full calculation of taperfct for case 'ac02'
665    o updating verification/ adjoints of carbon, global_ocean.90x40x15
666    
667    checkpoint47i_post
668    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
669    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
670      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
671    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
672    o gmredi: fix few bugs.
673    
674    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
675    This will be a good checkpoint to plug into the ecco-branch.
676    o few modif.'s to get latest version adjointed
677      (mainly kick out code in ini_linear_phisurf)
678    o modif's to run adjoint with exactConserv
679    o case GM_BOLUS_ADVEC should be cleaned
680      S/R gmredi_slope_psi should be cleaned
681    o verification/carbon now has exactConserv=.TRUE.
682    
683    checkpoint47g_post
684    o time-average AIM output: becomes independent from statvars time-average
685      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
686    o After TAF bug fix:
687      Tested adjoint of gmredi package.
688      Tests were done with checkpoint47 rather than with latest
689      checkpoint47f_post since the latter is broken for the adjoint
690      verification/carbon/ contains both ADM and TLM gradient checks.
691    Here they are, before they get changed/lost/stolen.
692    Mostly modif.'s to fix numerical sensitivities.
693    Gradient checks OK for
694    - GM_taper_scheme:
695      * clipping
696      * ac02
697      * linear
698      * glw91
699      * dm95
700      * ldd97
701    - GMREDI_OPTIONS:
702      * GM_VISBECK_VARIABLE_K
703      * GM_NON_UNITY_DIAGONAL
704      * GM_EXTRA_DIAGONAL
705      * GM_BOLUS_ADVEC
706    in conjunction with data.gmredi parameters to be checked in
707    in a few minutes under verification/carbon/code/
708    
709    checkpoint47f_post
710    Merging from release1_p10:
711    o modifications for using pkg/exf with pkg/seaice
712      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
713        and SEAICE_EXTERNAL_FLUXES
714      - pkg/exf CPP options EXF_READ_EVAP and
715        EXF_NO_BULK_COMPUTATIONS
716      - usage examples are Experiments 8 and 9 in
717        verification/lab_sea/README
718      - verification/lab_sea default experiment now uses
719        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
720    
721    checkpoint47e_post
722    o created a tag prior to creating a branch
723    
724    checkpoint47d_post
725    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
726      at the bottom boundary had an erroneous half slip boundary condition
727    o added bottom drag and no slip boundary condition capabilities to
728      oceanic pressure coordinates code
729    o added new verification experiment global_ocean_pressure, this experiment is
730      also described in the tutorial section of the manual
731    checkpoint47d_pre
732    
733    checkpoint47c_post
734    o Added a verification experiment for a global cubed-sphere ocean run
735      -  verification/global_ocean.cubed32x32x30
736      -  uses pkg/therm_seaice and pkg/bulk_forcing
737    
738    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
739    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
740      when using P-coordinate; only implemented for atmospheric config.
741    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
742      NOTES: requires option NONLIN_FRSURF to be "#define".
743    o update advect_xz/results/output.txt (left from checkpoint44g_post)
744    
745    checkpoint47b_post
746    Merging from release1_p9:
747    o pkg/seaice
748      - removed GOTO's and added taf directives
749      - double precision constants to reduce the g77 (Linux)
750        to F77 (SGI) differences reported in release1_p8
751    o tools/genmake
752      - added SGI options
753    o verification/testscript
754      - updated to that of checkpoint47a_post
755    o verification/global_ocean.90x40x15/input/eedata
756      - modified for SGI f77 compatibility
757    o verification/lab_sea
758      - added description of sea-ice model
759      - added missing matlab routines
760      - added test of thermodynamics parallelization
761    
762    checkpoint47a_post
763    o new pkg: aim_v23
764     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
765       for now, keep the same surface forcing as before.
766     - Part-Cell implemented into AIM; check that Heat & Water are conserved
767     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
768     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
769    o add diagnostic of surface correction term in monitor output
770    
771    o bulk_force and therm_seaice
772    - Two packages:  bulk_force (Bulk forcing)
773      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
774    - Earlier integration from Stephaine Dutkiewicz
775      and Patrick Heimbach.
776    - Two ifdef statements for compile time,
777       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
778    
779    checkpoint47
780    differentiable version of checkpoint46n_post
781    o bug fix in quasihydrostaticterms
782    o * "clean" adjoint code (in terms of extensive recomputations)
783        can now be obtained for all GMREDI options (i.e. for
784        - GM_VISBECK_VARIABLE_K
785        - GM_NON_UNITY_DIAGONAL
786        - GM_EXTRA_DIAGONAL
787        - GM_BOLUS_ADVEC )
788      * However, wrong gradient check problem remains unsolved.
789      * New CPP options have been introduced for different
790        tapering schemes
791    o external_fields_load now part of differentiation list
792    o pressure needs multiple storing;
793      would be nice to have store_pressure at beginning or
794      end of forward_step, e.g. by having phiHyd global (5-dim.)
795      (NB: pressure is needed for certain cases in find_rho,
796      which is also invoked through convective_adjustment).
797    o recomputations in find_rho for cases
798     'JMD95'/'UNESCO' or 'MDJWF' are OK.
799    o #define ATMOSPHERIC_LOADING should be differentiable
800    o ini_forcing shifted to begining of initialise_varia
801    o Incorporating QNVS line search routines into MITgcm
802      (this is separate code, and therefore not under pkg)
803      lsopt/, optim/
804    o Updated verification/carbon/
805      - #define GM_VISBECK_VARIABLE_K
806      - GM_taper_scheme    = 'ldd97'    
807    
808    checkpoint46n_post
809    Merging from release1_p8:
810    o verification/natl_box:
811      updating new external_fields_load routine
812    o New package: pkg/seaice
813      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
814      The sea-ice code is based on Hibler (1979-1980).
815      Two sea-ice dynamic solvers, ADI and LSR, are included.
816      In addition to computing prognostic sea-ice variables and diagnosing
817      the forcing/external data fields that drive the ocean model,
818      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
819      The implied surface heat flux is then stored in variable
820      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
821      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
822      non-local transport term.  Because this call precedes model
823      thermodynamics, temperature under sea-ice may not be "exactly" at
824      the freezing point by the time theta is dumped or time-averaged.
825      N.B.: fairly large differences in accuracy occur across
826            different platforms/compilers; comparison between
827            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
828            generated output gives:
829       T           S           U           V
830      C D M    c        m  s        m  s        m  s        m  s
831      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
832      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
833      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
834    
835      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
836    o GAD:
837      - generated new common blocks to account for call of
838        same gad routines with differing traceridentities
839        (needed to modify tracerIdentity indices in GAD.h)
840      - generated separate common blocks for case useCubedSphereExchange
841        (Department of Futurology)
842      - parameter lists to gmredi_?transport: added tracerIdentity
843      - added new key indices to tamc.h
844    o external_fields_load:
845      - added this routine to TAF list
846      - needed to make some common blocks global and additional storing
847        along the same lines as exf package (checkpoint_lev?_directives.h)
848    o exf:
849      updated external forcing package
850      - bug fixes carried over from ecco-branch
851        (missing OBCS_OPTIONS.h in two routines)
852      - enable easy to use "no forcing".
853      - added exf I/O for atmospheric loading
854      - added exf I/O for runoff data
855      - transfered scaling between exf <-> MITgcm to exf namelist
856    o Adding new verification experiment global_with_exf.
857      This verification experiment is almost identical to the
858      global_ocean.90x40x15 experiment, except that it uses
859      the exf (and cal) package instead of the
860      external_fields_load routine (cf README file).
861    
862    checkpoint46m_post
863    o modified testscript to return -- when there are no lines of "%MON" output
864    o added new flag "quasiHydrostatic" for QH mode
865      and new routine quasihydrostaticterms()
866    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
867      New routine: mom_u_coriolis_nh()
868    o fixed sign of non-hydrostatic metric terms in u and v equations.
869      Depend on correct sign of gravitySign.
870    o added work.pc* to .cvsignore in aim directories using ifc
871    o introduced flag for controllin non-hydrostatic metric terms
872    o removed gravitySign from PARM04
873    o switched to g77/ifc from pgf77 in aim experiments
874    
875    checkpoint46l_post
876    o made convective adjustment work with pressure coordinates:
877     - changed the direction of k-loop in convective_adjustment.F for the
878       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
879     - adjusted the reference pressure k-index in convective_adjustment.F
880     - adjusted the convection condition in convect.F (in analogy to
881       calc_ivdc.F)
882     - convective_adjustment no longer computes anything on the halos
883     - removed the warnings about negative salinity from find_rho.F and
884       find_alpha.F; instead the new routine look_for_neg_salinity, called
885       at the beginning of find_rho, find_alpha, and find_beta, does a
886       check of the entire slice, if CPP-option
887       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
888    checkpoint46l_pre
889    
890    checkpoint46k_post
891    o fixed the verification/global_ocean.90x40x15 experiment:
892     - new bathymetry (the world according to A., JMC, and M.)
893     - new initial fields and forcing fields (*.bin files)
894     - new POLY3.COEFFS (for the next release one should switch to a full
895       equation of state: JMD95P or MDJWF)
896     - fixed several errors and redundancies in the data file
897     - experiment uses looped cells
898     - added matlab directory with diagnostic scripts for plotting of output
899    
900    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
901     - read AIM physics parameters from a file (data.aimphys)
902     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
903    
904    checkpoint46j_post
905    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
906    o move wVel computation at the end of the time step, in S/R integr_continuity
907    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
908    o update timeave pkg for wVel diagnostic.
909    checkpoint46j_pre
910    
911    checkpoint46i_post
912    o Clean up AIM package (and keep the results unchanged):
913      include CPP_OPTION and use IMPLICT NONE in all routines ;
914      declare all the variables _RL ; use _d 0 for all numerical constants.
915      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
916    
917    checkpoint46h_post
918    o cleaned up the use of rhoNil and rhoConst.
919      - rhoNil should only appear in the LINEAR equation of state, everywhere
920        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
921        and the dynamical equations are all divided by rhoConst
922    o introduced new parameter rhoConstFresh, a reference density of fresh
923      water, to remove the fresh water flux's dependence on rhoNil. The default
924      value is 999.8 kg/m^3
925    o cleanup up external_forcing.F and external_forcing_surf.F
926      - can now be used by both OCEANIC and OCEANICP
927    checkpoint46h_pre
928    
929     Added code to convert surface volume flux (fresh water) into
930     a mass flux when using P coordinates in the ocean (OCEANICP).
931     Note: It assumes you have set rho0=rhoConst=density of fresh water.
932    
933    checkpoint46g_post
934    o Include a new diagnostic variable phiHydLow for the ocean model
935      - in z-coordinates, it is the bottom pressure anomaly
936      - in p-coordinates, it is the sea surface elevation
937      - in both cases, these variable have global drift, reflecting the mass
938        drift in z-coordinates and the volume drift in p-coordinates
939      - included time averaging for phiHydLow, be aware of the drift!
940    o depth-dependent computation of Bo_surf for pressure coordinates
941      in the ocean (buoyancyRelation='OCEANICP')
942      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
943        Theta, Salinity, and Pressure in the parameter list. This routine is
944        presently contained in find_rho.F. This routine does not give the
945        correct density for 'POLY3', which would be a z-dependent reference
946        density.
947    o cleaned up find_rho
948      - removed obsolete 'eqn' from the parameter list.
949    o added two new verification experiments: gop and goz
950      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
951    checkpoint46g_pre
952    
953    checkpoint46f_post
954    o Enable tangent linear (forward mode) gradient checks:
955      - extended active file handling to g_... files
956      - added TANGENT_SIMULATION to theSimulationMode
957      - extended grdchk package accordingly
958    o added tangent linear setup in verification/carbon/code_ftl
959    o added adjoint setup in verification/front_relax/code_ad
960    
961    checkpoint46e_post
962    o Added new equation of state -> MDJWF
963      - EOS of McDougall et al., 2002, JAOT, submitted
964      - caveat: the equation of state is only valid for a smaller (more
965        realistic?) range of values than JMD95P/Z and UNESCO
966      - added masks to the calculation of pressure in store_pressure
967      - added more check values for density in check_eos (ini_eos.F), some of
968        the old check values are out of the range of the MDJWF-eos, so don't
969        expect perfect matches for those
970    checkpoint46e_pre
971    
972    checkpoint46d_post
973    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
974      'OCEANICP', also initialised field pressure correctly in ini_eos in the
975      case of pressure coordinates. eosType='JMD95Z' in
976      combination with buoyancyRelation='OCEANICP' now causes an error.
977    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
978      in find_alpha/beta.
979    checkpoint46d_pre
980    
981    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
982      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
983    
984    checkpoint46c_post
985    o Changes necessary for ocean in p-coordinates
986     -  Added new buoyancy relation = 'OCEANICP'
987     -  Added new parameters = gravitySign (this used to be contained inside
988        the factor dRdZ which I added when we first switched to R coordinates).
989     X GM/Redi is not compatible (yet)
990     X bottom drag and no-slip need to be debugged.
991    checkpoint46c_pre
992    
993    checkpoint46b_post
994    o Added new equation of state -> JMD95Z and JMD95P
995      - EOS of Jackett and McDougall, 1995, JAOT
996      - moved all EOS parameters into EOS.h
997      - new routines ini_eos.F, store_pressure.F
998    o Added UNESCO EOS, but not recommended because it requires
999      in-situ temperature (see JMD95)
1000    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1001      unesco.f to be used with POLY3
1002    checkpoint46b_pre
1003    
1004    checkpoint46a_post
1005    o Added (atmospheric) pressure loading
1006      - new field in FFIELDS.h, etc...
1007      - new cpp flag ATMOSPHERIC_LOADING
1008    o Changed hFacC to _hFacC in calc_phi_hyd.F
1009    o Added SHORTWAVE_HEATING to some files for consistency
1010    checkpoint46a_pre
1011    
1012    checkpoint46
1013    further merges from release1_p5
1014    o new ctrl package
1015      - adopted from ECCO environment to enable optimization
1016      - added Eliassen Palm fluxes to controls
1017    o added Eliassen Palm flux controls to gradient check package
1018    o cost package
1019      - Compatible with new ctrl package
1020      - added Eliassen Palm cost hooks
1021      - modif's of existing cost functions
1022    o Adjoint-related bug fixes in kpp:
1023      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1024      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1025    o autodiff package
1026      - flow directives:
1027        + new for S/R do_the_model_io
1028        + enhanced for S/R checkpoint
1029        + new gmredi.flow
1030      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1031        disable adcommon.h/g_common.h by default.
1032      - fixed problem for adjoint of global_max
1033    o modified verification/carbon/
1034    o New setup for adjoint of global_ocean
1035    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1036    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1037    o incorporated hooks for sponge layer code (external_forcing.F)
1038    
1039    checkpoint45d_post
1040    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1041    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1042      (affects plume_on_slope "cg2d" output)
1043    o add new parameter deltaTfreesurf for free-surface time stepping
1044    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1045    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1046    o change phiMin in exp1 (to agree with documentation)
1047    o add new flags:
1048     - T,S forcing inside/outside Adams-Bashforth
1049     - turn off temp,salt advection and/or forcing
1050     - for each tracer, define internal flag for multiDimAdvection & A-B
1051    o monitor: change definition of KE to check conservation of Energy
1052    
1053    checkpoint45c_post
1054    o Removed f90 comments ("!")
1055    o Modified initialisations to enable exf package for MITgcm
1056      (without invoking ECCO_PACKAGE).
1057    o modifications to gradient check package (Martin Losch)
1058      - enable centered differences
1059      - modified format of standard output
1060    
1061    checkpoint45b_post
1062    o cleaned exchange calls in cg2d
1063    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1064    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1065      to configure barotropic setup (Martin Losch)
1066    o moved some initialisations within bi,bj loop in dynamics
1067      (TAF flow dependency)
1068    o in initialise_varia, moved call packages_init_variables
1069      before convective_adjustment_init
1070      (corresponding adjustment of TAF tape initialisation).
1071    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1072    
1073    checkpoint45a_post
1074    o compute Rho over the whole domain (extend iMin,jMin indices)
1075    o specific exchange for X-slice domain (case Ny=1)
1076    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1077    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1078    
1079    checkpoint44h_post = checkpoint45
1080    o Fix to restore differentiability:
1081      place at which packages_init_variables is called in
1082      initialise_varia is crucial for reverse control flow.
1083    o modifications in GMRedi to enable stable adjoint
1084      (corresponding modif's in thermodynamics, dynamics)
1085    o added missing hook for sponge layer code in external_forcing
1086    o modified test cost functions
1087    o storing in gad_advection (plus removal of write(0,*)!
1088    o missing headers TR1.h added in convective_adjustment routines
1089    o errorMessageUnit set non-equal zero in eeboot
1090      (conflict on some platforms, e.g. IBM SP3)
1091    o modified carbon verif.
1092    
1093    checkpoint44h_pre
1094    o vertical grid option: allow to put the Interface at the middle between
1095      2 cell-centers ; replace delZ in pkg/kpp by drF.
1096    o GM Advective form: Tracers are advected using the residual transport (=
1097      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1098    
1099    checkpoint44g_post
1100    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1101      results) ; ifdef missing in thermodynamics.F
1102    
1103    checkpoint44f_pre,checkpoint44f_post
1104    o added PTRACERS package
1105      This allows an arbitrary number of passive tracers to be integrated
1106      forward simultaneously with the dynamicaly model.
1107      + Implemented so far:
1108        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1109        - I/O and checkpointing
1110        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1111      + Not implemented so far:
1112        - KPP
1113        - OBCS
1114      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1115        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1116        line in data.pkg.
1117      + This package is disabled by default since it increases storage.
1118    
1119    
1120    o testscript: added -cleanup option
1121    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1122                 b) enable to filter 2D fields.
1123    
1124    checkpoint44e_pre,post
1125    o re-wrote convective adjustment to use pre-calculated weights
1126      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1127      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1128      Original calls to convect() still in place.
1129    
1130    chkpt44d_pre,post
1131    o added missing EXCLUDE_MONITOR flags
1132    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1133      (incompatible typ in MIN/MAX expressions caused problems
1134      on IBM SP3)
1135    o in genmake added variable MAKEDEPEND
1136      plus resetting for case SunOS
1137    o added timer_stats.c routine for IBM SP3
1138    o removed variables in dynamics
1139    !!! I forgot to create tag chkpt44d_pre !!!
1140    !!! But chkpt44d_pre = chkpt44c_post    !!!
1141    
1142    o real fresh water flux implemented with non-linear free-surface.
1143    
1144    chkpt44c_pre,post
1145    o few fix (mask in shap_s2, EmPmR in external_field_load,
1146      USE_NATURAL_BCS in solve_for_P);
1147    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1148    
1149    checkpoint44b_pre/_post
1150    o merge of relevant stuff from the ecco-branch:
1151      - genmake: removed $S64 overwrite for case SunOS
1152      - pkg/exf: update and corrections for field swapping and obcs
1153      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1154                  harmonized between ECCO and MITgcm
1155      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1156                      updated checkpointing_lev... lists for obcs
1157      - model/src: minor changes in forward_step, plot_field
1158                   added directive for divided adjoint in the_main_loop
1159      - pkg/mdsio: added mdsio_gl_slice
1160    
1161    o check parameters & config (chkpt44a_pre,post)
1162    o OBC and NonLin_FrSurf.
1163    
1164    checkpoint44
1165    o fix bug in mom_vi_del2uv
1166    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1167    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1168    o update AIM experiments (NCEP input files)
1169    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1170    o added some stuff for AD
1171    
1172    checkpoint43
1173    o added two new advection tests
1174    o added global 4x4 degree ocean test
1175    o added test of H&S94 with free surface on cube
1176    o some final mods for gradient check, adjoint,...
1177    
1178    checkpoint42
1179      Fixed AD-related problems:
1180    o Store directives up-to-date with re-arranged Adams-Bashforth
1181      (mainly thermodynamics.F)
1182    o New store directives for multi-dim. advection schemes
1183      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1184      * new common block and key passkey
1185      (mainly gad_advection.F)
1186    o Modified store directives for split of dynamics/thermodynamics
1187      for the case ALLOW_KPP
1188    o Cleaned argument list for timestep_tracer.F
1189    
1190    checkpoint41
1191    o re-formatted/added comments in prologues of key subroutines
1192      to work with protex
1193    
1194    checkpoint40
1195    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1196    o added FLT (floats) package from Arne along with demo. experiment
1197    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1198      implementation of forward-in-time forcing terms
1199    o more mods for non-linear free-surface including new variable
1200    o modified multi-dim method to work on cube
1201    o bug fix in KPP (from DM)
1202    
1203    checkpoint40pre9
1204    o added DST advection schemes
1205    o fix MPI bug on SGI's
1206    o modifications for non-linear free-surface
1207    o fixed conditionals for fixed flow/passive tracer only mode
1208    o added tension/strain form of stress tensor
1209    o changes to commenting of arguments for TAF/TAMC
1210    o added/updated many matlab scripts
1211    o added multi-dimensional advection method for tracers
1212      
1213    checkpoint40pre8
1214    o new package rw/
1215      Added method for dumping intermediate local arrays:
1216      mdsio_writetile - same as mdsio_writefield except works from inside
1217                        bi,bj loop
1218      mdsio_writelocal - same as mdsio_writetile except works for local
1219                         arrays
1220      write_local_r? - higher-level wrapper for mdsio_writelocal
1221      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1222      Example given at end of mom_vecinv.F that dumps some local arrays.
1223    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1224      control flux-form versus vector invariant code.
1225      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1226      or genmake -DISABLE ...
1227    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1228      (additional storing is now needed for case vecinv;
1229      currently nothing implemented to switch this storing off
1230      in case fluxform is used since no CPP flag available).
1231    
1232    checkpoint40pre7
1233    o bug fix in dynamics.F
1234      calc_viscosity called before k=1,Nr loop.
1235    o added some #ifdef's ALLOW_PASSIVE_TRACER
1236    o cleaned initialisations in ctrl_map_ini
1237      related to TAF
1238    
1239    checkpoint40pre6
1240    o split dynamics into thermodynamics & dynamics
1241    o corresponding split of calc_diffusivity into
1242      calc_diffusivity, calc_viscosity
1243      (kpp_calc_diff, kpp_calc_visc).
1244    o Added diffkr, kapgm to control variables
1245    o bug fix in gmredi_slope_limit for ldd97
1246    
1247    checkpoint40pre5
1248    o proper initialization of Adams-Bashforth time stepping
1249      + uses forward step for very first step of model (iter=0)
1250    o re-generated *all* output since almost all output is modified by this
1251      change (sorry but we've been putting this one off for about 2 years)
1252      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1253        *not* regenerated since they are already out of date and I don't
1254        want to create the impression that they are suddenly working.
1255    o removed KAP stuff for DEC's
1256    o modified/added many .cvsignore files in */code and */input
1257    o added new expt "solid-body.cs-32x32x1"
1258      + this uses an alternative form of ini_curvilinear_grid.F which
1259        is not necessarily any better than the current one...
1260    
1261    checkpoint40pre4
1262    o added re-initialisations of utrans,vtrans,rtrans in
1263      calc_common_factors which are crucial for TAF.
1264    o extended iMin,jMin range for calc_common_factors,
1265      calc_diffusivity
1266    o added option ALLOW_PASSIVE_TRACER
1267    o a few minor updates and fixes
1268    
1269    checkpoint40pre3
1270    o created calc_gtr1.F for gad package
1271    o split the_main_loop and re-introduced forward_step
1272    o some recomputations of nIter0 for TAMC
1273    
1274    checkpoint40pre2
1275    o Updated to latest branch of AJA, JMC
1276    o Added gradient check package
1277    o Added routines for passive tracer handling
1278    o Added carbon sequestration sensitivity experiment
1279    
1280    checkpoint39
1281     o Modifications and fixes to support TAMC
1282       (mainly missing or wrong directives)
1283     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1284       in addummy_in_stepping
1285     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1286     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1287     o Included following packages:
1288       cal: calendar
1289       exf: external forcing
1290       ecco: essential routines to control use of cal, exf
1291             (NB: this is not the full ECCO environment)
1292     o disabled some packages by default in genmake
1293    
1294    checkpoint38
1295     o see notes_c37_adj.txt
1296     o corrected wrong layer index in external_forcing_t
1297     o replaced the_main_loop/forward_step by the_main_loop
1298     o removed forceoutput from write_state
1299       (replaced criteria for initial/final state)
1300     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1301    
1302    checkpoint37
1303     o mdsio.F routine split and packaged in pkg/mdsio
1304       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1305        used unless genmake -disable=mdsio)
1306     o allow a more precise surface-geopotential gradient for the atmosphere
1307       taking into account the change in space of Alpha (=1/rho) at the surface.
1308     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1309       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1310     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1311       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1312       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1313     o Time-Average diagnostics defined as a pseudo package "timeave".
1314     o pickup files : old pickup (before c35) did not work with new code (c35
1315       and after) unless activating 2 commented lines in initialise-varia.
1316     o Non-Hydrostatic pickup file Pb fixed.
1317     o bug with Rigid-lid version (since c35) fixed.  
1318    
1319    checkpoint36
1320     o implement Crank-Nickelson barotropic time-stepping
1321     o recover Time-Average diagnostics
1322     o fix Pb in checkpoint (PR#19)
1323     o AIM become a standard package ; clean unused CPP_kees
1324    
1325    checkpoint35
1326     o subtantial rewrite of dynamics.f
1327     o allows staggered time-stepping
1328     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1329     o added bottom drag (linear + quadratic)
1330    
1331    checkpoint34
1332     o Modified exchange routines for correct reverse simulation.
1333     o Added verification output to comply with bug fix in impldiff.F
1334       as of c33 (exp2, natl_box).
1335     o Corrected store directives in dynamics.F
1336     o Corrected array boundaries in impldiff.F
1337     o Corrected array dimensions in gmredi.
1338       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1339     o Added routine GLOBAL_SUM_INT to global_sum.F
1340     o Added mdsio_gl.F for ECCO purposes.
1341    
1342    checkpoint33
1343     o Fixed bug in lower BC in impldiff.F
1344     o Fixed confusion about units of forcing arrays in FFIELDS.h
1345       namely Fu,Fv,Qnet,Qsw,EmPmR:
1346       - Removed verification/natl_box/code/external_fields_scale.F
1347         (did not differ from that in model/src)
1348       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1349         (see FFIELDS.h for description)
1350       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1351         kpp_calc.F and kpp_transport_t.F
1352       - Removed model/src/external_fields_scale.F and calls to it
1353       - verification/natl_box uses flux data with "atmospheric" sign so
1354         a special version of external_fields_load.F is used to
1355         change the data as it's read in. This way, the arrays
1356         have the right units and signs at all times tha a user could
1357         possibly use them.
1358     o Corrected genmake to delete a temporary file during configuration
1359    
1360    checkpoint32
1361     o Scaling of forcing fields moved from external_forcing.F to
1362       external_fields_scale.F, called directly after loading fields.
1363     o Surface relaxation terms added to surface tendency fields in
1364       extra subroutine.
1365     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1366       fields.
1367     o Changes in GMRedi to comply with packaging structure.
1368     o Modifications and bug fixes in KPP package.
1369     o Verification experiment for KPP added (verification/nat_box/)
1370    
1371    checkpoint31
1372     o Packages interface brought in line with defined standard
1373       -> new routines packages_...F
1374       -> changes in initialise_fixed.F, initialise_varia.F
1375       -> enables initialisation interface for ECCO package
1376     o Rescaling of external forcing fields immediately after read
1377       (removed from external_forcing.F)
1378       -> new: surface_fields_scale.F
1379       -> affects ini_foorcing.F, external_fields_load.F
1380     o Computation of surface tendencies before tendency updates.
1381       -> new: external_forcing_surf.F
1382     o Change of variable names useGMRedi, useKPP, useECCO
1383     o Further changes in dynamics.F, impldiff.F for TAMC
1384     o Tested for experiments 0, 2, 4.
1385       - not yet tested for GMRedi.
1386       - not yet tested for KPP.
1387    
1388    checkpoint30
1389     o Updates for OBCs
1390     o New experiment for test OBCs (internal_wave)
1391     o New output.txt in verification/exp4/results/
1392     o Updates for KPP: calculation of viscosity corrected, new variables
1393       kpp_dumpFreq and kpp_taveFreq
1394     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1395       and entry for T90 in genmake
1396    
1397    checkpoint29
1398     o packaged KPP and GM/Redi
1399    
1400    checkpoint28
1401     o Corrected initialization of hFacMin for difference vertical coordinates
1402     o Modified calculation of partial cell thickness to more robust algorithm
1403     o config_summary.F: replaced write_1D_... by write_0D_...
1404       read_write.F: added subroutines write_0D_...
1405     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1406       included some initialisations required for TAMC.
1407     o routine calc_isoslopes: modified sqrt computation to make it
1408       differentiable for zero argument.
1409     o routines dynamics, impldiff:
1410       included store directives and tape key computations required for TAMC.
1411     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1412    
1413    checkpoint27
1414     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1415       formulation works properly with variable resolution.
1416     o restructured the calling tree between the_model_main() and dynamics()
1417     o split initialise() into initialise_fixed() and initialise_varia()
1418     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1419       in new routine ini_psurf()
1420    
1421    checkpoint26
1422     o moved some #ifdef in optional routines to encompass everything
1423       except the argument declarations. This was using up some memory.
1424     o fixed macros like _ADT to work with both versions of Linux cpp
1425     o cleaned up some unused and uninitialized variables
1426       (helps when debugging with strict compile options)
1427     o split up CPP_EEOPTIONS.h into options and macros
1428       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1429     o patch for 2 processor JAM mode
1430    
1431    checkpoint25
1432     o updates for OBCs and NH
1433     o dramatically reduced memory usage
1434     o added "JAM" routines for use on Artic network
1435     o parameterization of convection by implicit vertical diffusion
1436     o added a diagnostic of convective index
1437     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1438       (this is was partly for OBCs and NH but also in anticipation of
1439        an explicit free-surface option)
1440     o initial state input files for U and V
1441    
1442    checkpoint24
1443     o Removed some spurious "REAL"s
1444     o Updated KPP to latest version from JPL
1445     o Added a COS(latitude) in horizontal viscosity
1446    
1447    checkpoint23
1448     o Added del^4 diffusion for salt and temperature
1449     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1450    
1451  checkpoint22  checkpoint22
1452   o Made many small changes: implicit none, format(i5), etc...   o Made many small changes: implicit none, format(i5), etc...
1453   o Introduced KPP mixing scheme (compiles and runs but *not* tested)   o Introduced KPP mixing scheme (compiles and runs but *not* tested)

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