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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.242 by afe, Fri Jan 16 20:26:05 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
7    o genmake2: add build & execute test for NetCDF code
8    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
9      old grid files, moved CPP_EEMACROS.h to pkg/exch2
10    o added useSingleCPUIO flag to monitor.F and mon_out.F
11    o added temporary hack for sea-ice dynamics on the cube:
12      metric terms are ignored and it is assumed that
13      there is no sea-ice on cube faces 1, 2, 4, and 5.
14    
15    checkpoint52f_post
16    o added exch2 cube routines to pkg/exch2
17    o modified hs94.cs-32x32x5 to use it
18    o added new grid files to hs94.cs-32x32x5
19    checkpoint52f_pre
20    
21    checkpoint52e_post
22    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
23      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
24    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
25      to work with implicit vertical advection and AB ;
26    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
27    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
28     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
29    checkpoint52e_pre
30    
31    o fix bug in impldiff when Nr=1 or Nr=2.
32    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
33    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
34    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
35      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
36    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
37    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
38    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
39    
40    checkpoint52d_post
41    o re-tiled many expts to allow comparison in multi-processor mode
42      - updated output accordingly
43      - changed hs94.128x64x5 to use intial T from file rather than use the
44        random number generator
45    o add infrastructure in model routines for fizhi and gridalt packages
46    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
47    o changes to permit hi-res, cubed-sphere, configuration
48      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
49      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
50      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
51        of surface winds for the cube
52      (A verification experiment, based on global_ocean.cs32x15, but with
53       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
54       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
55       complete with example surface forcing files and matlab scripts to look
56       at the output and compare it with that of global_ocean.cs32x15.)
57    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
58       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
59       to conform to the common rule.
60    o check-in the first version of the coupler + interfaces for multi-components
61       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
62       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
63       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
64       - ocean and atmos. share the same horizontal grid (no interpolation).
65       - exchanges between component and coupler is done in forward_step
66    o new verification experiment, cpl_aim+ocn:
67       coupled ocean - AIM atmosphere on cs32 grid.
68    
69    checkpoint52d_pre
70    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
71    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
72    
73    checkpoint52c_post
74    o Fixing OPTIONS files for use of exf:
75      - ALLOW_ECCO not needed
76      - ECCO_CPPOPTIONS.h should not be included from
77        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
78        as has been the case in the past
79      - All cal/exf related options are currently set in
80        single header file. Should remain so until we
81        agree on a consistent new policy.
82    o Removed all CPP options for cal package.
83      cal has no more CPP options.
84    o modified STOREs in GAD_ADVECTION
85    o corrected key comp. for passkey
86    
87    checkpoint52b_post
88    o new version: "thsice" of thermodynamic sea-ice pkg:
89     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
90     - modify fluxes but do not change theta directly;
91     - light cleaning of bulk_force pkg (still needed with thsice).
92     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
93       + output_thsice.txt to test thsice & bulk_force pkgs.
94    o put back grid & coriolis monitor output.
95    checkpoint52b_pre
96    
97    o call "do_the_model_io" at the beginning (=> dump initial state)
98    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
99    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
100      (need info on NUMBER_OF_PTRACERS)
101    o missing PTRACERS headers in some routines
102    o default tamc.h in pkg/autodiff supposed to crash
103      to ensure proper customization
104    
105    checkpoint52a_post
106    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
107      - moved surfaceTendencyTice from pkg/seaice to main code
108      - subroutine FREEZE_SURFACE now limits only surface temperature
109        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
110        => new output.txt for global_ocean.cs32x15 & global_with_exf
111      - keep the old version of FREEZE for backward compatibility;
112        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
113      - corresponding modifs for TAF directives
114    o added surface flux output variables to TIMEAVE_STATVARS
115    o time-averaged output for pkg/ptracers
116    o fix problem with ECCO-related divided adjoint
117      snapshot file was missing some ad-variables,
118      but no warning issued by TAF
119    
120    checkpoint52a_pre
121    o some bug fixes for #undef REAL4_IS_SLOW
122    
123    checkpoint52 = ecco_c52_e35
124    o after testing adjoints of checkpoint51u_post
125    
126    checkpoint51u_post
127    o this is the post-merge tag of the ecco-branch
128      (needs another clean checkout and re-testing)
129    o various natl_box_adjoint configs and results
130      but no input fields
131    o obcs adjoint not yet merged!
132    o adding ECCO global 1x1 and 2x2 degree configs
133    o updated/extended some store directives for seaice
134    o pkg/ecco now containes ecco-specific part of cost function
135    o top level routines the_main_loop, forward_step
136      supersede those in model/src/
137      previous input data.cost now in data.ecco
138      (new namelist ecco_cost_nml)
139    o in ctrl/ cleaned some cross-dependencies and updated CPP options
140    
141    checkpoint51t_post
142    o this is the pre-merge tag of the ecco-branch
143    
144    checkpoint51s_post
145    o cleanup: removed various obsolete #define-s
146    o pkg/grdchk
147      - renamed 'ph-grd 3' to 'grad-res'
148      - merged from ecco-branch
149        (remaining bug fixes for obcs gradient checks)
150      - additional high-precision output for testreport
151        (grep for 'precision_grdchk_result')
152    
153    checkpoint51r_post
154    o cleaned up or removed CPP_OPTIONS.h files
155    o updated results for some of the tests to reflect the new
156      optfiles (-ieee: -O0 instead of -O3)
157    
158    checkpoint51q_post
159    o cd_code:
160      - moved cd_scheme.F -> cd_code_scheme.F
161      - separate read_checkpoint from cd_code_ini_vars.F
162      - separated cd_code part from write_checkpoint
163      - updated AD_SOURCE, generated .flow
164      - added CD_CODE_VARS.h to the_main_loop
165      - Moving cd_code specific store dir.s to pkg/cd_code
166    o ctrl package totally restructured
167      - pack/unpack now optional and decoupled from
168        xx_/adxx_ I/O
169      - ctrl_pack/unpack cleaned
170        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
171      - confined inclusion of AD_CONFIG.h to where necessary.
172    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
173    
174    checkpoint51p_post
175    o create initial cd_code package
176      - WARNING: the initialization of fields within packages
177        is broken because INI_FIELDS (where READ_CHECKPOINT is
178        called) is called *before* PACKAGES_INIT_VARIABLES.
179        This seems to be backwards since
180        1) its important to initially zero the entire field including
181           the "halo" region
182        2) zeroing needs to be done *before* reading pickup info
183           and the pickup call might or might not happen in any
184           particular run
185      - this needs an overhaul for R2
186    o cleanup verification/*/code/GMREDI_OPTIONS.h
187    o cleanup testreport
188    
189    checkpoint51o_post
190    o bringing AD-related verif's up to date with genmake2
191      - carbon/
192      - global_ocean.90x40x15/
193      - hs.94.1x64x5/
194      - (front_relax/ )
195    o (more) consistent directory structure for AD-related verif.'s
196    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
197    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
198    o bug fix in find_alpha.F for MDJWF:
199      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
200        change rho -> rho-rhoConst
201      - replace call find_rho to find_rhonum
202    o initialisation of rFlx extended to full array (required by TAF)
203      and shifted to thermodynamics
204    o removed PTRACERS.h in ptracers routine
205    o added surfacetendencyPtr to S/R parameter list pracers_forcing
206    o Correcting initialisations for fVerU, fVerV.
207    o helping TAF to recognize dependency on kUp for
208      fVerU, fVerV
209    o Replacing delZ by delR in pkg/ctrl/
210    checkpoint51o_pre
211    
212    o undid all of cp51 pending some cleanups and discussion
213    o added the [#include "AD_CONFIG.h"] statement to all files that need
214       it for adjoint/tl #defines
215     o re-worked the build logic in genmake2 to support AD_CONFIG.h
216     o removed tools/genmake since it no longer works
217    
218    checkpoint51n_post
219    o modifications to make FREEZE flux visible to pkg/kpp
220      - moved surfaceTendencyTice from pkg/seaice to main code
221      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
222      - subroutine FREEZE now limits only surface temperature
223        (this means new output.txt for global_ocean.90x40x15,
224         global_ocean.cs32x15, and global_with_exf)
225    o added surface flux output variables to TIMEAVE_STATVARS
226    
227    checkpoint51n_pre
228    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
229    o added [#include "AD_CONFIG.h"] to all files that use the following
230      defines:
231      - ALLOW_ADJOINT_RUN
232      - ALLOW_TANGENTLINEAR_RUN
233      - ALLOW_ECCO_OPTIMIZATION
234    
235    checkpoint51m_post
236    o incorporating changes to get TAMC/TAF working in genmake2
237      - added new TAMC/TAF targets to the Makefile
238      - various cleanups related to package handling
239      - these changes should have no impact on the forward model
240    
241    checkpoint51l_post
242    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
243     - faster algorithm for cal_addtime.F
244     - higher precision arithmetic, where needed
245     - pkg/exf *startdate variables changed from calendar date to
246       model integration time
247    
248    checkpoint51l_pre
249    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
250    o enable to apply restoring on S & T only in a latitude band.
251    o update output (external_forcing_surf modif. change truncation errors)
252       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
253    
254    checkpoint51k_post
255    o change default to: useNHMTerms=.FALSE.
256     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
257       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
258     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
259        exp1, ideal_2D_oce
260     - change data file of oceanic exp (leave the results unchanged for now)
261       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
262    o set gravitySign automatically according to the vertical coordinate used
263      (and change sign: back to "logical" value: +1 when R increases downward)
264    o added an include barrier to the default CPP_OPTIONS.h and
265      removed the #include "PACKAGES_CONFIG.h" from it
266    o fix a bug in mom_fluxform (from chk51j_post)
267    
268    checkpoint51j_post
269    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
270    o adjusted some flow directives (dynamics, thermodynamics)
271    o added cubed-sphere case to test cost function
272    o heckpoint_lev?_directives.h now include
273      pkg-specific directives, whenever those are enabled.
274    o Moving pkg-specific flow directives to corresponding pkg
275      Moving pkg-specific differentiation list to corresponding pkg
276      Moving pkg-specific checkpoint-lev storing to corresponding pkg
277      ---> conventions are
278           - pkg_ad.flow
279           - pkg_ad_diff.list
280           - pkg_ad_check_lev?_dir.h
281    
282    checkpoint51i_post
283    o merge of the branch-genmake2
284      - knowingly breaks the older genmake
285      - automatic generation of all ALLOW_${PKG_NAME} defines
286      - new testreport supersedes older testscript
287    o large number of package inclusion and header cleanups
288    checkpoint51i_pre
289    
290    o new output for adjoin of global ocean vector invariant
291    o fix for checkpoint of thermodynamic seaice and bulk_force
292    o Steph gchem various cleanups
293    
294    checkpoint 51h_pre
295    o fixed some single quotes
296    o modify gchem pkg to be more versatile
297    o modifications to clean up dic pkg
298    o add pkg/cfc
299    
300    checkpoint51g_post
301    o provide links for ARPACK and ADM*TLM
302    o start removing verification/vero/
303    o update AD-related stuff
304      (in particular some IF-statements in model/src/ routines)
305    o adding to verification/global_ocean.90x40x15/ adjoint of
306      vector invariant setup
307    
308    checkpoint51f_post
309    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
310    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
311      of tracer Green's fucntions for ocean inversion project.
312    
313    checkpoint51f_pre
314    o Added on-the-fly spatial interpolation capability
315        "USE_EXF_INTERPOLATION" to pkg/exf.
316      - This is a temporary Cartesian-grid hack until
317        the super-duper ESMF coupler becomes available.
318      - See verification/global_with_exf/README for usage example.
319      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
320        flags and modified pkg/seaice accordingly.
321    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
322        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
323        non-local transport term.
324    
325    checkpoint51e_post
326    o pkg/mom_vecinv:
327      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
328      - add time-ave diagnostic of vorticity advection.
329    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
330    o atmospheric geopotential: - include water vapor effect;
331                                - use p^kappa in p* scaling.
332    o land pkg: read initial state from files.
333    o AIM : add stratospheric drag in the upper level
334    
335    checkpoint51d_post
336    o change function ILNBLNK (=> last non-blank char.) to return zero
337      (instead of the string length) when the string. char is empty
338    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
339    o modif's to restore TAMC compatibility
340      - avoid "_d" constructs in PARAMETER declarations
341      - avoid interrupting lines by comment lines
342    o Use cluster local disks for purely local I/O
343      vs. globally visible disks needed for ctrl stuff
344      (merged from ecco-branch)
345      - new active_file_loc... and mdsio_..._loc routines
346      - affected packages: autodiff, ctrl, grdchk, mdsio
347    
348    checkpoint51c_post
349    o introducing integer flag debugLevel
350      - debLevZero: suppress all output
351      - debLevA: standard
352      - debLevB: equivalent to current debugMode=.TRUE.
353    o introducing pathname variable mdsioLocalDir for mdsio
354      that can be specified at runtime
355      (relevant for cluster I/O to local disk)
356    `
357    >>>checkpoint51b_post
358    adjoint of ptracers
359    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
360    o extended state in checkpoint_lev?, etc.
361    o alternative ctrl/cost with tr1 or ptracer
362    o new comlev1_bibj_ptracers
363    o new ptracers.flow
364    o made ptracers_forcing same as external_forcing_s
365    o added verification for adjoint with ptracers
366      - adm. grdchk fail so far
367      - tlm. grdchk OK
368      - checked tapelev/comlev recomputations: OK
369    <<<checkpoint51b_pre
370    
371    checkpoint51a_post
372    o added code for biogeochemistry package
373      - new pkgs: dic, gchem
374      - new subroutine in ptracers
375    o modify code for biogeo packages
376      - in model/src and pkg/ptracers
377    
378    checkpoint51
379    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
380      - autodiff, ctrl, exf, grdchk, seaice
381      kept separate packages
382      - cost, ecco, obcs
383    o updating verification/internal_wave, verification/lab_sea
384      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
385    
386    checkpoint50i_post
387    o Preparing next differentiable checkpoint and sync
388      of MAIN vs. ecco-branch
389      - 1st step: this one is differentiable
390      - 2nd step: next(! not this) checkpoint will have updated packages
391                  from ecco-branch)
392    
393    checkpoint50h_post
394    o new package "land": provide surface BC for AIM.
395    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
396    o AIM: use true log-P extrapolation for near surface temp (= as in
397        F.Molteni paper) ; update aim.5l_cs output.
398    o New variable in PARM03 for more flexible pickups
399    o somewhat cleaned package initialisation sequence for
400      ctrl/ cost/ ecco/ in packages_... routines
401    
402    checkpoint50g_post
403    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
404      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
405      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
406        made the default because of faster convergence than ADI
407    
408    checkpoint50f_post
409    o exf totally restructured
410      - replaced all exf_set_ routines by one generic exf_set_gen.F
411        and made sure it's still differentiable
412      - split exf_getffields.F into new exf_bulkformulae.F
413      - exf_inscal_/exf_outscal_ suffixes consistent with field names
414      - updated adjoint/makefile and relevant verif. accordingly
415    
416    checkpoint50f_pre
417     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
418          + change Evap over land. (update aim.5l_cs output)
419     o added missing .cvsignores and made uniform across expts
420     o changed configuration of tidal_basin_2d expt
421     o added pkg/debug functions for tracing code in fatal crashes
422     o tidied pkg/monitor to use MONITOR_OPTIONS.h
423     o new fn in pkg/monitor to stop model if solution grows too big
424     o removed lots of single quotes from comments
425    
426    checkpoint50e_post
427    o make KPP work with PTRACERS
428     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
429       nearly a copy of kpp_transport_s
430     - there is no analogue to SurfaceTendencyS, so I have to use
431       gPtr(of the surface layer) instead
432    o add a new platform SunFire+mpi (SunFire 15000) to genmake
433    checkpoint50e_pre
434    
435    checkpoint50d_post
436    o change kpp output from multiple-record state files to single-record state
437      files analogous to write_state.F
438    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
439      analogous to the cg2d-related output.
440    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
441      so that writing to internal file fn (with length 512) fails.
442    checkpoint50d_pre
443    
444    checkpoint50c_post
445    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
446    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
447    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
448    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
449    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
450    
451    checkpoint50c_pre
452    Merging from release1_p13:
453    o bug fix for pkg/seaice dynamic solver
454    o Added SEAICE_initialHEFF to pkg/seaice
455    
456    checkpoint50b_post
457    o store u*,v* in gU,V instead of in guNm1,gvNm1
458    o in order to put the momForcing out of the Adams-Bashforth:
459      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
460      to timestep.F
461    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
462    o re-generate output for highly sensitive test-exp:
463       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
464    
465    checkpoint50b_pre
466    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
467    o corrected CPP option mismatch in exf_Bulk... functions for case
468      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
469    
470    checkpoint50a_post
471    o Bug fix for merging between c50 and KPP.
472      ikey was passed from thermodynamics to kpp_calc via
473      common block rather than being recomputed in kpp_calc,
474      in contradiction with new key itdkey.
475      New key ikppkey created, and tamc.h headers updated.
476    
477    checkpoint50
478    - 2nd step of merge with ecco-branch:
479      merge changes in ecco-branch back into main trunk
480    - bug fix in find_alpha
481    - more storing in gmredi_calc_tensor.F, kpp_routines.F
482    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
483    - merged some sliced AD support routines
484    
485    checkpoint49
486    merged from ecco-branch:
487    o exf:
488      - Enable initialisation of forcing fields to constant
489        (runtime) values.
490      - in exf_getffields.F
491        Reduce i-/j-loop to interior domain, discarding overlaps.
492        That also fixes wrong TAF-key computations for key_1, key_2
493        with bulf formulae.
494      - exf_init.F modify #ifdef for exf_init_evap
495      - exf_getffieldrec.F, ctrl_getrec.F
496        The following INT-usages are not safe:
497          fldsecs  = int(fldsecs/fldperiod)*fldperiod
498          fldcount = int(fldsecs/fldperiod) + 1
499        and were modified.
500    o autodiff: checkpoint_lev...
501      - updated storing for bulk formulae (some arrays were missing)
502      - added state for seaice package
503      - synchronized with main branch
504    o DIVA:
505      Modif.s in
506      - the_main_loop.F
507      - the_model_main.F
508      and added cost_final_restore.F cost_final_store.F
509      o With these changes, it is possible to fully separate
510        the first forward run to compute the cost function (mdthe_main_loop)
511        and adjoint runs over individual DIVA intervals (adthe_main_loop)
512        into separate model executions.
513        This enables better tuning of DIVA to given queue sizes.
514      o Loss of cost function value in consecutive DIVA runs is
515        fixed by storing to 'costfinal' file.
516      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
517        beginning/end of adjoint integration is accounted for.
518      The current changes apply to TAF-1.4.26.
519      TAF has one remaining bug, requiring one manual change
520      (see MITgcm manual).
521    o cal: synchronized between MAIN and ecco-branch
522    
523    checkpoint48i_post
524    o Changes to restore differentiability of code w.r.t. previous tag
525      (mostly adding new routines to make list and replacing
526      pressure by totPhiHyd).
527    o Updated and merged grdchk package
528      - has both ADM and TLM checks
529      - works for single- and multi-proc.
530      - output cleaned
531      - worked successfully for parallel DIVA
532    o genmake:
533      - Adding -platform=SP4
534      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
535    o Modif. for DIVA:
536      ctrl_unpack should not be called in intermediate DIVA interval.
537      (similar thing would apply for active files such as
538      tbar, sbar, psbar, which should not be reinitialised;
539      only relevant for ecco-branch)
540    
541    checkpoint48h_post
542    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
543    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
544    o Added SEAICE_initialHEFF to pkg/seaice
545    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
546    
547    checkpoint48g_post
548    --- EOS:
549    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
550      store total Potential in totPhyHyd for diagnostics & EOS.
551    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
552    --- Pressure/geopotential gradient:
553    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
554    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
555      ( changes results of global_ocean_pressure )
556    o NLFS + z-coord.: add eta*Rho' contribution.
557    o accurate phiHyd when using interface-W at the middle between 2 centers
558     ( changes results of ideal_2D_oce )
559    o includes r* 2nd term in potential gradient.
560    
561    checkpoint48f_post
562    Merging from release1_p12:
563    o Modifications for using pkg/exf with pkg/seaice
564      - improved description of the various forcing configurations
565      - added basic radiation bulk formulae to pkg/exf
566      - units/sign fix for evap computation in exf_getffields.F
567      - updated verification/global_with_exf/results/output.txt
568    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
569      (SBO) core products, including oceanic mass, center-of-mass,
570      angular, and bottom pressure (see pkg/sbo/README.sbo).
571    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
572      to avoid negative values in shallow regions.
573      - updated verification/natl_box/results/output.txt
574      - updated verification/lab_sea/results/output.txt
575    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
576    o Added useSingleCpuIO option (see PARAMS.h).
577    o Updated useSingleCpuIO option in mdsio_writefield.F to
578      work with multi-field files, e.g., for single-file pickup.
579    o pkg/seaice:
580      - bug fix in growth.F: QNET for no shortwave case
581      - added HeffFile for specifying initial sea-ice thickness
582      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
583    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
584      kpp_transport_t.F, forward_step.F, and the_main_loop.F
585    o pkg/seaice:
586      - adjoint-friendly modifications
587      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
588    
589    checkpoint48e_post
590    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
591    o dynamics: change definition of computational domain & adapt mom_fluxform
592      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
593    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
594        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
595        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
596        global_ocean.90x40x15 global_with_exf global_ocean_pressure
597        inverted_barometer solid-body.cs-32x32x1
598      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
599    
600    checkpoint48d_post
601    o in preparation for r*:
602     a) use pre-computed gradient of hydrostatic potential:
603        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
604     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
605        => affects results of glob_oce_pressure (different truncation error)  
606      update output.txt of ideal_2D_oce & global_ocean_pressure
607    
608    checkpoint48d_pre
609    o in preparation for r*:
610      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
611      pass the 2 comp. of the grad. as arguments to momentum S/R.
612      but for the moment, only used if it does not change the results.
613    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
614    
615    checkpoint48c_post
616    Modifications in treatment of initial flux forcing controls
617    to avoid extra storing of flux fields.
618    
619    checkpoint48c_pre
620    o Added tidal_basin_2d experiment (currently 1D!)
621    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
622    
623    checkpoint48b_post
624    o r* coordinate added in #ifdef NONLIN_FRSURF block.
625     (modification to pressure gradient not yet implemented)
626    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
627      (for U & V) that are used for vertical advection of momentum.
628    
629    checkpoint48a_post
630    o In preparation for r*, use temp. array to compute vertical transport
631       in flux-form momentum pkg. => change results of few test-exp.
632      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
633                        lab_sea, natl_box & plume_on_slope
634    
635    checkpoint48
636    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
637    
638    checkpoint47j_post
639    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
640    o moved adexch from forward_step to addummy_in_stepping
641    o added exch in ctrl_map_...
642    o aveFreq.=0. at end of cost_final to avoid overwrite in
643      reverse checkpointing loop
644    o Yet more changes in gmredi:
645      * adgmredi_calc_tensor
646        avoiding all recomputation of gmredi_slope_limit
647      * adgmredi_x/y/rtransport
648        added flag for excessive storing to avoid recomp. of
649        u/v/rtans, dTdx/y/z
650        -> this is not really necessary and very memory-consuming
651      * adgmredi_slope_psi:
652        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
653      * gmredi_slope_limit
654        re-activated full calculation of taperfct for case 'ac02'
655    o updating verification/ adjoints of carbon, global_ocean.90x40x15
656    
657    checkpoint47i_post
658    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
659    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
660      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
661    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
662    o gmredi: fix few bugs.
663    
664    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
665    This will be a good checkpoint to plug into the ecco-branch.
666    o few modif.'s to get latest version adjointed
667      (mainly kick out code in ini_linear_phisurf)
668    o modif's to run adjoint with exactConserv
669    o case GM_BOLUS_ADVEC should be cleaned
670      S/R gmredi_slope_psi should be cleaned
671    o verification/carbon now has exactConserv=.TRUE.
672    
673    checkpoint47g_post
674    o time-average AIM output: becomes independent from statvars time-average
675      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
676    o After TAF bug fix:
677      Tested adjoint of gmredi package.
678      Tests were done with checkpoint47 rather than with latest
679      checkpoint47f_post since the latter is broken for the adjoint
680      verification/carbon/ contains both ADM and TLM gradient checks.
681    Here they are, before they get changed/lost/stolen.
682    Mostly modif.'s to fix numerical sensitivities.
683    Gradient checks OK for
684    - GM_taper_scheme:
685      * clipping
686      * ac02
687      * linear
688      * glw91
689      * dm95
690      * ldd97
691    - GMREDI_OPTIONS:
692      * GM_VISBECK_VARIABLE_K
693      * GM_NON_UNITY_DIAGONAL
694      * GM_EXTRA_DIAGONAL
695      * GM_BOLUS_ADVEC
696    in conjunction with data.gmredi parameters to be checked in
697    in a few minutes under verification/carbon/code/
698    
699    checkpoint47f_post
700    Merging from release1_p10:
701    o modifications for using pkg/exf with pkg/seaice
702      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
703        and SEAICE_EXTERNAL_FLUXES
704      - pkg/exf CPP options EXF_READ_EVAP and
705        EXF_NO_BULK_COMPUTATIONS
706      - usage examples are Experiments 8 and 9 in
707        verification/lab_sea/README
708      - verification/lab_sea default experiment now uses
709        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
710    
711    checkpoint47e_post
712    o created a tag prior to creating a branch
713    
714    checkpoint47d_post
715    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
716      at the bottom boundary had an erroneous half slip boundary condition
717    o added bottom drag and no slip boundary condition capabilities to
718      oceanic pressure coordinates code
719    o added new verification experiment global_ocean_pressure, this experiment is
720      also described in the tutorial section of the manual
721    checkpoint47d_pre
722    
723    checkpoint47c_post
724    o Added a verification experiment for a global cubed-sphere ocean run
725      -  verification/global_ocean.cubed32x32x30
726      -  uses pkg/therm_seaice and pkg/bulk_forcing
727    
728    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
729    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
730      when using P-coordinate; only implemented for atmospheric config.
731    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
732      NOTES: requires option NONLIN_FRSURF to be "#define".
733    o update advect_xz/results/output.txt (left from checkpoint44g_post)
734    
735    checkpoint47b_post
736    Merging from release1_p9:
737    o pkg/seaice
738      - removed GOTO's and added taf directives
739      - double precision constants to reduce the g77 (Linux)
740        to F77 (SGI) differences reported in release1_p8
741    o tools/genmake
742      - added SGI options
743    o verification/testscript
744      - updated to that of checkpoint47a_post
745    o verification/global_ocean.90x40x15/input/eedata
746      - modified for SGI f77 compatibility
747    o verification/lab_sea
748      - added description of sea-ice model
749      - added missing matlab routines
750      - added test of thermodynamics parallelization
751    
752    checkpoint47a_post
753    o new pkg: aim_v23
754     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
755       for now, keep the same surface forcing as before.
756     - Part-Cell implemented into AIM; check that Heat & Water are conserved
757     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
758     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
759    o add diagnostic of surface correction term in monitor output
760    
761    o bulk_force and therm_seaice
762    - Two packages:  bulk_force (Bulk forcing)
763      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
764    - Earlier integration from Stephaine Dutkiewicz
765      and Patrick Heimbach.
766    - Two ifdef statements for compile time,
767       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
768    
769    checkpoint47
770    differentiable version of checkpoint46n_post
771    o bug fix in quasihydrostaticterms
772    o * "clean" adjoint code (in terms of extensive recomputations)
773        can now be obtained for all GMREDI options (i.e. for
774        - GM_VISBECK_VARIABLE_K
775        - GM_NON_UNITY_DIAGONAL
776        - GM_EXTRA_DIAGONAL
777        - GM_BOLUS_ADVEC )
778      * However, wrong gradient check problem remains unsolved.
779      * New CPP options have been introduced for different
780        tapering schemes
781    o external_fields_load now part of differentiation list
782    o pressure needs multiple storing;
783      would be nice to have store_pressure at beginning or
784      end of forward_step, e.g. by having phiHyd global (5-dim.)
785      (NB: pressure is needed for certain cases in find_rho,
786      which is also invoked through convective_adjustment).
787    o recomputations in find_rho for cases
788     'JMD95'/'UNESCO' or 'MDJWF' are OK.
789    o #define ATMOSPHERIC_LOADING should be differentiable
790    o ini_forcing shifted to begining of initialise_varia
791    o Incorporating QNVS line search routines into MITgcm
792      (this is separate code, and therefore not under pkg)
793      lsopt/, optim/
794    o Updated verification/carbon/
795      - #define GM_VISBECK_VARIABLE_K
796      - GM_taper_scheme    = 'ldd97'    
797    
798    checkpoint46n_post
799    Merging from release1_p8:
800    o verification/natl_box:
801      updating new external_fields_load routine
802    o New package: pkg/seaice
803      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
804      The sea-ice code is based on Hibler (1979-1980).
805      Two sea-ice dynamic solvers, ADI and LSR, are included.
806      In addition to computing prognostic sea-ice variables and diagnosing
807      the forcing/external data fields that drive the ocean model,
808      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
809      The implied surface heat flux is then stored in variable
810      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
811      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
812      non-local transport term.  Because this call precedes model
813      thermodynamics, temperature under sea-ice may not be "exactly" at
814      the freezing point by the time theta is dumped or time-averaged.
815      N.B.: fairly large differences in accuracy occur across
816            different platforms/compilers; comparison between
817            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
818            generated output gives:
819       T           S           U           V
820      C D M    c        m  s        m  s        m  s        m  s
821      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
822      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
823      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
824    
825      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
826    o GAD:
827      - generated new common blocks to account for call of
828        same gad routines with differing traceridentities
829        (needed to modify tracerIdentity indices in GAD.h)
830      - generated separate common blocks for case useCubedSphereExchange
831        (Department of Futurology)
832      - parameter lists to gmredi_?transport: added tracerIdentity
833      - added new key indices to tamc.h
834    o external_fields_load:
835      - added this routine to TAF list
836      - needed to make some common blocks global and additional storing
837        along the same lines as exf package (checkpoint_lev?_directives.h)
838    o exf:
839      updated external forcing package
840      - bug fixes carried over from ecco-branch
841        (missing OBCS_OPTIONS.h in two routines)
842      - enable easy to use "no forcing".
843      - added exf I/O for atmospheric loading
844      - added exf I/O for runoff data
845      - transfered scaling between exf <-> MITgcm to exf namelist
846    o Adding new verification experiment global_with_exf.
847      This verification experiment is almost identical to the
848      global_ocean.90x40x15 experiment, except that it uses
849      the exf (and cal) package instead of the
850      external_fields_load routine (cf README file).
851    
852    checkpoint46m_post
853    o modified testscript to return -- when there are no lines of "%MON" output
854    o added new flag "quasiHydrostatic" for QH mode
855      and new routine quasihydrostaticterms()
856    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
857      New routine: mom_u_coriolis_nh()
858    o fixed sign of non-hydrostatic metric terms in u and v equations.
859      Depend on correct sign of gravitySign.
860    o added work.pc* to .cvsignore in aim directories using ifc
861    o introduced flag for controllin non-hydrostatic metric terms
862    o removed gravitySign from PARM04
863    o switched to g77/ifc from pgf77 in aim experiments
864    
865    checkpoint46l_post
866    o made convective adjustment work with pressure coordinates:
867     - changed the direction of k-loop in convective_adjustment.F for the
868       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
869     - adjusted the reference pressure k-index in convective_adjustment.F
870     - adjusted the convection condition in convect.F (in analogy to
871       calc_ivdc.F)
872     - convective_adjustment no longer computes anything on the halos
873     - removed the warnings about negative salinity from find_rho.F and
874       find_alpha.F; instead the new routine look_for_neg_salinity, called
875       at the beginning of find_rho, find_alpha, and find_beta, does a
876       check of the entire slice, if CPP-option
877       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
878    checkpoint46l_pre
879    
880    checkpoint46k_post
881    o fixed the verification/global_ocean.90x40x15 experiment:
882     - new bathymetry (the world according to A., JMC, and M.)
883     - new initial fields and forcing fields (*.bin files)
884     - new POLY3.COEFFS (for the next release one should switch to a full
885       equation of state: JMD95P or MDJWF)
886     - fixed several errors and redundancies in the data file
887     - experiment uses looped cells
888     - added matlab directory with diagnostic scripts for plotting of output
889    
890    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
891     - read AIM physics parameters from a file (data.aimphys)
892     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
893    
894    checkpoint46j_post
895    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
896    o move wVel computation at the end of the time step, in S/R integr_continuity
897    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
898    o update timeave pkg for wVel diagnostic.
899    checkpoint46j_pre
900    
901    checkpoint46i_post
902    o Clean up AIM package (and keep the results unchanged):
903      include CPP_OPTION and use IMPLICT NONE in all routines ;
904      declare all the variables _RL ; use _d 0 for all numerical constants.
905      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
906    
907    checkpoint46h_post
908    o cleaned up the use of rhoNil and rhoConst.
909      - rhoNil should only appear in the LINEAR equation of state, everywhere
910        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
911        and the dynamical equations are all divided by rhoConst
912    o introduced new parameter rhoConstFresh, a reference density of fresh
913      water, to remove the fresh water flux's dependence on rhoNil. The default
914      value is 999.8 kg/m^3
915    o cleanup up external_forcing.F and external_forcing_surf.F
916      - can now be used by both OCEANIC and OCEANICP
917    checkpoint46h_pre
918    
919     Added code to convert surface volume flux (fresh water) into
920     a mass flux when using P coordinates in the ocean (OCEANICP).
921     Note: It assumes you have set rho0=rhoConst=density of fresh water.
922    
923    checkpoint46g_post
924    o Include a new diagnostic variable phiHydLow for the ocean model
925      - in z-coordinates, it is the bottom pressure anomaly
926      - in p-coordinates, it is the sea surface elevation
927      - in both cases, these variable have global drift, reflecting the mass
928        drift in z-coordinates and the volume drift in p-coordinates
929      - included time averaging for phiHydLow, be aware of the drift!
930    o depth-dependent computation of Bo_surf for pressure coordinates
931      in the ocean (buoyancyRelation='OCEANICP')
932      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
933        Theta, Salinity, and Pressure in the parameter list. This routine is
934        presently contained in find_rho.F. This routine does not give the
935        correct density for 'POLY3', which would be a z-dependent reference
936        density.
937    o cleaned up find_rho
938      - removed obsolete 'eqn' from the parameter list.
939    o added two new verification experiments: gop and goz
940      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
941    checkpoint46g_pre
942    
943    checkpoint46f_post
944    o Enable tangent linear (forward mode) gradient checks:
945      - extended active file handling to g_... files
946      - added TANGENT_SIMULATION to theSimulationMode
947      - extended grdchk package accordingly
948    o added tangent linear setup in verification/carbon/code_ftl
949    o added adjoint setup in verification/front_relax/code_ad
950    
951    checkpoint46e_post
952    o Added new equation of state -> MDJWF
953      - EOS of McDougall et al., 2002, JAOT, submitted
954      - caveat: the equation of state is only valid for a smaller (more
955        realistic?) range of values than JMD95P/Z and UNESCO
956      - added masks to the calculation of pressure in store_pressure
957      - added more check values for density in check_eos (ini_eos.F), some of
958        the old check values are out of the range of the MDJWF-eos, so don't
959        expect perfect matches for those
960    checkpoint46e_pre
961    
962    checkpoint46d_post
963    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
964      'OCEANICP', also initialised field pressure correctly in ini_eos in the
965      case of pressure coordinates. eosType='JMD95Z' in
966      combination with buoyancyRelation='OCEANICP' now causes an error.
967    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
968      in find_alpha/beta.
969    checkpoint46d_pre
970    
971    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
972      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
973    
974    checkpoint46c_post
975    o Changes necessary for ocean in p-coordinates
976     -  Added new buoyancy relation = 'OCEANICP'
977     -  Added new parameters = gravitySign (this used to be contained inside
978        the factor dRdZ which I added when we first switched to R coordinates).
979     X GM/Redi is not compatible (yet)
980     X bottom drag and no-slip need to be debugged.
981    checkpoint46c_pre
982    
983    checkpoint46b_post
984    o Added new equation of state -> JMD95Z and JMD95P
985      - EOS of Jackett and McDougall, 1995, JAOT
986      - moved all EOS parameters into EOS.h
987      - new routines ini_eos.F, store_pressure.F
988    o Added UNESCO EOS, but not recommended because it requires
989      in-situ temperature (see JMD95)
990    o Modified formatting for knudsen2.f in utils/knudsen2 and added
991      unesco.f to be used with POLY3
992    checkpoint46b_pre
993    
994    checkpoint46a_post
995    o Added (atmospheric) pressure loading
996      - new field in FFIELDS.h, etc...
997      - new cpp flag ATMOSPHERIC_LOADING
998    o Changed hFacC to _hFacC in calc_phi_hyd.F
999    o Added SHORTWAVE_HEATING to some files for consistency
1000    checkpoint46a_pre
1001    
1002    checkpoint46
1003    further merges from release1_p5
1004    o new ctrl package
1005      - adopted from ECCO environment to enable optimization
1006      - added Eliassen Palm fluxes to controls
1007    o added Eliassen Palm flux controls to gradient check package
1008    o cost package
1009      - Compatible with new ctrl package
1010      - added Eliassen Palm cost hooks
1011      - modif's of existing cost functions
1012    o Adjoint-related bug fixes in kpp:
1013      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1014      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1015    o autodiff package
1016      - flow directives:
1017        + new for S/R do_the_model_io
1018        + enhanced for S/R checkpoint
1019        + new gmredi.flow
1020      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1021        disable adcommon.h/g_common.h by default.
1022      - fixed problem for adjoint of global_max
1023    o modified verification/carbon/
1024    o New setup for adjoint of global_ocean
1025    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1026    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1027    o incorporated hooks for sponge layer code (external_forcing.F)
1028    
1029    checkpoint45d_post
1030    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1031    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1032      (affects plume_on_slope "cg2d" output)
1033    o add new parameter deltaTfreesurf for free-surface time stepping
1034    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1035    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1036    o change phiMin in exp1 (to agree with documentation)
1037    o add new flags:
1038     - T,S forcing inside/outside Adams-Bashforth
1039     - turn off temp,salt advection and/or forcing
1040     - for each tracer, define internal flag for multiDimAdvection & A-B
1041    o monitor: change definition of KE to check conservation of Energy
1042    
1043    checkpoint45c_post
1044    o Removed f90 comments ("!")
1045    o Modified initialisations to enable exf package for MITgcm
1046      (without invoking ECCO_PACKAGE).
1047    o modifications to gradient check package (Martin Losch)
1048      - enable centered differences
1049      - modified format of standard output
1050    
1051    checkpoint45b_post
1052    o cleaned exchange calls in cg2d
1053    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1054    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1055      to configure barotropic setup (Martin Losch)
1056    o moved some initialisations within bi,bj loop in dynamics
1057      (TAF flow dependency)
1058    o in initialise_varia, moved call packages_init_variables
1059      before convective_adjustment_init
1060      (corresponding adjustment of TAF tape initialisation).
1061    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1062    
1063    checkpoint45a_post
1064    o compute Rho over the whole domain (extend iMin,jMin indices)
1065    o specific exchange for X-slice domain (case Ny=1)
1066    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1067    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1068    
1069    checkpoint44h_post = checkpoint45
1070    o Fix to restore differentiability:
1071      place at which packages_init_variables is called in
1072      initialise_varia is crucial for reverse control flow.
1073    o modifications in GMRedi to enable stable adjoint
1074      (corresponding modif's in thermodynamics, dynamics)
1075    o added missing hook for sponge layer code in external_forcing
1076    o modified test cost functions
1077    o storing in gad_advection (plus removal of write(0,*)!
1078    o missing headers TR1.h added in convective_adjustment routines
1079    o errorMessageUnit set non-equal zero in eeboot
1080      (conflict on some platforms, e.g. IBM SP3)
1081    o modified carbon verif.
1082    
1083    checkpoint44h_pre
1084    o vertical grid option: allow to put the Interface at the middle between
1085      2 cell-centers ; replace delZ in pkg/kpp by drF.
1086    o GM Advective form: Tracers are advected using the residual transport (=
1087      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1088    
1089    checkpoint44g_post
1090    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1091      results) ; ifdef missing in thermodynamics.F
1092    
1093    checkpoint44f_pre,checkpoint44f_post
1094    o added PTRACERS package
1095      This allows an arbitrary number of passive tracers to be integrated
1096      forward simultaneously with the dynamicaly model.
1097      + Implemented so far:
1098        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1099        - I/O and checkpointing
1100        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1101      + Not implemented so far:
1102        - KPP
1103        - OBCS
1104      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1105        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1106        line in data.pkg.
1107      + This package is disabled by default since it increases storage.
1108    
1109    
1110    o testscript: added -cleanup option
1111    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1112                 b) enable to filter 2D fields.
1113    
1114    checkpoint44e_pre,post
1115    o re-wrote convective adjustment to use pre-calculated weights
1116      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1117      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1118      Original calls to convect() still in place.
1119    
1120    chkpt44d_pre,post
1121    o added missing EXCLUDE_MONITOR flags
1122    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1123      (incompatible typ in MIN/MAX expressions caused problems
1124      on IBM SP3)
1125    o in genmake added variable MAKEDEPEND
1126      plus resetting for case SunOS
1127    o added timer_stats.c routine for IBM SP3
1128    o removed variables in dynamics
1129    !!! I forgot to create tag chkpt44d_pre !!!
1130    !!! But chkpt44d_pre = chkpt44c_post    !!!
1131    
1132    o real fresh water flux implemented with non-linear free-surface.
1133    
1134    chkpt44c_pre,post
1135    o few fix (mask in shap_s2, EmPmR in external_field_load,
1136      USE_NATURAL_BCS in solve_for_P);
1137    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1138    
1139    checkpoint44b_pre/_post
1140    o merge of relevant stuff from the ecco-branch:
1141      - genmake: removed $S64 overwrite for case SunOS
1142      - pkg/exf: update and corrections for field swapping and obcs
1143      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1144                  harmonized between ECCO and MITgcm
1145      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1146                      updated checkpointing_lev... lists for obcs
1147      - model/src: minor changes in forward_step, plot_field
1148                   added directive for divided adjoint in the_main_loop
1149      - pkg/mdsio: added mdsio_gl_slice
1150    
1151    o check parameters & config (chkpt44a_pre,post)
1152    o OBC and NonLin_FrSurf.
1153    
1154    checkpoint44
1155    o fix bug in mom_vi_del2uv
1156    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1157    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1158    o update AIM experiments (NCEP input files)
1159    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1160    o added some stuff for AD
1161    
1162    checkpoint43
1163    o added two new advection tests
1164    o added global 4x4 degree ocean test
1165    o added test of H&S94 with free surface on cube
1166    o some final mods for gradient check, adjoint,...
1167    
1168    checkpoint42
1169      Fixed AD-related problems:
1170    o Store directives up-to-date with re-arranged Adams-Bashforth
1171      (mainly thermodynamics.F)
1172    o New store directives for multi-dim. advection schemes
1173      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1174      * new common block and key passkey
1175      (mainly gad_advection.F)
1176    o Modified store directives for split of dynamics/thermodynamics
1177      for the case ALLOW_KPP
1178    o Cleaned argument list for timestep_tracer.F
1179    
1180    checkpoint41
1181    o re-formatted/added comments in prologues of key subroutines
1182      to work with protex
1183    
1184    checkpoint40
1185    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1186    o added FLT (floats) package from Arne along with demo. experiment
1187    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1188      implementation of forward-in-time forcing terms
1189    o more mods for non-linear free-surface including new variable
1190    o modified multi-dim method to work on cube
1191    o bug fix in KPP (from DM)
1192    
1193    checkpoint40pre9
1194    o added DST advection schemes
1195    o fix MPI bug on SGI's
1196    o modifications for non-linear free-surface
1197    o fixed conditionals for fixed flow/passive tracer only mode
1198    o added tension/strain form of stress tensor
1199    o changes to commenting of arguments for TAF/TAMC
1200    o added/updated many matlab scripts
1201    o added multi-dimensional advection method for tracers
1202      
1203    checkpoint40pre8
1204    o new package rw/
1205      Added method for dumping intermediate local arrays:
1206      mdsio_writetile - same as mdsio_writefield except works from inside
1207                        bi,bj loop
1208      mdsio_writelocal - same as mdsio_writetile except works for local
1209                         arrays
1210      write_local_r? - higher-level wrapper for mdsio_writelocal
1211      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1212      Example given at end of mom_vecinv.F that dumps some local arrays.
1213    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1214      control flux-form versus vector invariant code.
1215      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1216      or genmake -DISABLE ...
1217    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1218      (additional storing is now needed for case vecinv;
1219      currently nothing implemented to switch this storing off
1220      in case fluxform is used since no CPP flag available).
1221    
1222    checkpoint40pre7
1223    o bug fix in dynamics.F
1224      calc_viscosity called before k=1,Nr loop.
1225    o added some #ifdef's ALLOW_PASSIVE_TRACER
1226    o cleaned initialisations in ctrl_map_ini
1227      related to TAF
1228    
1229    checkpoint40pre6
1230    o split dynamics into thermodynamics & dynamics
1231    o corresponding split of calc_diffusivity into
1232      calc_diffusivity, calc_viscosity
1233      (kpp_calc_diff, kpp_calc_visc).
1234    o Added diffkr, kapgm to control variables
1235    o bug fix in gmredi_slope_limit for ldd97
1236    
1237    checkpoint40pre5
1238    o proper initialization of Adams-Bashforth time stepping
1239      + uses forward step for very first step of model (iter=0)
1240    o re-generated *all* output since almost all output is modified by this
1241      change (sorry but we've been putting this one off for about 2 years)
1242      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1243        *not* regenerated since they are already out of date and I don't
1244        want to create the impression that they are suddenly working.
1245    o removed KAP stuff for DEC's
1246    o modified/added many .cvsignore files in */code and */input
1247    o added new expt "solid-body.cs-32x32x1"
1248      + this uses an alternative form of ini_curvilinear_grid.F which
1249        is not necessarily any better than the current one...
1250    
1251    checkpoint40pre4
1252    o added re-initialisations of utrans,vtrans,rtrans in
1253      calc_common_factors which are crucial for TAF.
1254    o extended iMin,jMin range for calc_common_factors,
1255      calc_diffusivity
1256    o added option ALLOW_PASSIVE_TRACER
1257    o a few minor updates and fixes
1258    
1259    checkpoint40pre3
1260    o created calc_gtr1.F for gad package
1261    o split the_main_loop and re-introduced forward_step
1262    o some recomputations of nIter0 for TAMC
1263    
1264    checkpoint40pre2
1265    o Updated to latest branch of AJA, JMC
1266    o Added gradient check package
1267    o Added routines for passive tracer handling
1268    o Added carbon sequestration sensitivity experiment
1269    
1270    checkpoint39
1271     o Modifications and fixes to support TAMC
1272       (mainly missing or wrong directives)
1273     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1274       in addummy_in_stepping
1275     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1276     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1277     o Included following packages:
1278       cal: calendar
1279       exf: external forcing
1280       ecco: essential routines to control use of cal, exf
1281             (NB: this is not the full ECCO environment)
1282     o disabled some packages by default in genmake
1283    
1284    checkpoint38
1285     o see notes_c37_adj.txt
1286     o corrected wrong layer index in external_forcing_t
1287     o replaced the_main_loop/forward_step by the_main_loop
1288     o removed forceoutput from write_state
1289       (replaced criteria for initial/final state)
1290     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1291    
1292    checkpoint37
1293     o mdsio.F routine split and packaged in pkg/mdsio
1294       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1295        used unless genmake -disable=mdsio)
1296     o allow a more precise surface-geopotential gradient for the atmosphere
1297       taking into account the change in space of Alpha (=1/rho) at the surface.
1298     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1299       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1300     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1301       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1302       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1303     o Time-Average diagnostics defined as a pseudo package "timeave".
1304     o pickup files : old pickup (before c35) did not work with new code (c35
1305       and after) unless activating 2 commented lines in initialise-varia.
1306     o Non-Hydrostatic pickup file Pb fixed.
1307     o bug with Rigid-lid version (since c35) fixed.  
1308    
1309    checkpoint36
1310     o implement Crank-Nickelson barotropic time-stepping
1311     o recover Time-Average diagnostics
1312     o fix Pb in checkpoint (PR#19)
1313     o AIM become a standard package ; clean unused CPP_kees
1314    
1315    checkpoint35
1316     o subtantial rewrite of dynamics.f
1317     o allows staggered time-stepping
1318     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1319     o added bottom drag (linear + quadratic)
1320    
1321    checkpoint34
1322     o Modified exchange routines for correct reverse simulation.
1323     o Added verification output to comply with bug fix in impldiff.F
1324       as of c33 (exp2, natl_box).
1325     o Corrected store directives in dynamics.F
1326     o Corrected array boundaries in impldiff.F
1327     o Corrected array dimensions in gmredi.
1328       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1329     o Added routine GLOBAL_SUM_INT to global_sum.F
1330     o Added mdsio_gl.F for ECCO purposes.
1331    
1332    checkpoint33
1333     o Fixed bug in lower BC in impldiff.F
1334     o Fixed confusion about units of forcing arrays in FFIELDS.h
1335       namely Fu,Fv,Qnet,Qsw,EmPmR:
1336       - Removed verification/natl_box/code/external_fields_scale.F
1337         (did not differ from that in model/src)
1338       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1339         (see FFIELDS.h for description)
1340       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1341         kpp_calc.F and kpp_transport_t.F
1342       - Removed model/src/external_fields_scale.F and calls to it
1343       - verification/natl_box uses flux data with "atmospheric" sign so
1344         a special version of external_fields_load.F is used to
1345         change the data as it's read in. This way, the arrays
1346         have the right units and signs at all times tha a user could
1347         possibly use them.
1348     o Corrected genmake to delete a temporary file during configuration
1349    
1350    checkpoint32
1351     o Scaling of forcing fields moved from external_forcing.F to
1352       external_fields_scale.F, called directly after loading fields.
1353     o Surface relaxation terms added to surface tendency fields in
1354       extra subroutine.
1355     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1356       fields.
1357     o Changes in GMRedi to comply with packaging structure.
1358     o Modifications and bug fixes in KPP package.
1359     o Verification experiment for KPP added (verification/nat_box/)
1360    
1361    checkpoint31
1362     o Packages interface brought in line with defined standard
1363       -> new routines packages_...F
1364       -> changes in initialise_fixed.F, initialise_varia.F
1365       -> enables initialisation interface for ECCO package
1366     o Rescaling of external forcing fields immediately after read
1367       (removed from external_forcing.F)
1368       -> new: surface_fields_scale.F
1369       -> affects ini_foorcing.F, external_fields_load.F
1370     o Computation of surface tendencies before tendency updates.
1371       -> new: external_forcing_surf.F
1372     o Change of variable names useGMRedi, useKPP, useECCO
1373     o Further changes in dynamics.F, impldiff.F for TAMC
1374     o Tested for experiments 0, 2, 4.
1375       - not yet tested for GMRedi.
1376       - not yet tested for KPP.
1377    
1378    checkpoint30
1379     o Updates for OBCs
1380     o New experiment for test OBCs (internal_wave)
1381     o New output.txt in verification/exp4/results/
1382     o Updates for KPP: calculation of viscosity corrected, new variables
1383       kpp_dumpFreq and kpp_taveFreq
1384     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1385       and entry for T90 in genmake
1386    
1387    checkpoint29
1388     o packaged KPP and GM/Redi
1389    
1390    checkpoint28
1391     o Corrected initialization of hFacMin for difference vertical coordinates
1392     o Modified calculation of partial cell thickness to more robust algorithm
1393     o config_summary.F: replaced write_1D_... by write_0D_...
1394       read_write.F: added subroutines write_0D_...
1395     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1396       included some initialisations required for TAMC.
1397     o routine calc_isoslopes: modified sqrt computation to make it
1398       differentiable for zero argument.
1399     o routines dynamics, impldiff:
1400       included store directives and tape key computations required for TAMC.
1401     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1402    
1403    checkpoint27
1404     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1405       formulation works properly with variable resolution.
1406     o restructured the calling tree between the_model_main() and dynamics()
1407     o split initialise() into initialise_fixed() and initialise_varia()
1408     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1409       in new routine ini_psurf()
1410    
1411    checkpoint26
1412     o moved some #ifdef in optional routines to encompass everything
1413       except the argument declarations. This was using up some memory.
1414     o fixed macros like _ADT to work with both versions of Linux cpp
1415     o cleaned up some unused and uninitialized variables
1416       (helps when debugging with strict compile options)
1417     o split up CPP_EEOPTIONS.h into options and macros
1418       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1419     o patch for 2 processor JAM mode
1420    
1421    checkpoint25
1422     o updates for OBCs and NH
1423     o dramatically reduced memory usage
1424     o added "JAM" routines for use on Artic network
1425     o parameterization of convection by implicit vertical diffusion
1426     o added a diagnostic of convective index
1427     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1428       (this is was partly for OBCs and NH but also in anticipation of
1429        an explicit free-surface option)
1430     o initial state input files for U and V
1431    
1432    checkpoint24
1433     o Removed some spurious "REAL"s
1434     o Updated KPP to latest version from JPL
1435     o Added a COS(latitude) in horizontal viscosity
1436    
1437    checkpoint23
1438     o Added del^4 diffusion for salt and temperature
1439     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1440    
1441    checkpoint22
1442     o Made many small changes: implicit none, format(i5), etc...
1443     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1444    
1445    checkpoint21
1446     o Introduced new I/O package that supports direct-access records (mdsio.F)
1447     o Split-up mid-level I/O routines
1448     o Updated input data for experiments 0,1,2,4 and 5
1449     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1450    
1451    checkpoint20
1452     o Tidied up open-boundaries some more
1453     o Added non-hydrostatic code
1454     o Fixed some input data
1455     o Modified MPI start-up to work in "coupled" context.
1456    
1457    checkpoint19
1458     o Tidied up directory structure for verification experiments.
1459     o Added new code for open boundaries.
1460     o Corrected advective terms near boundaries.
1461     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1462     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1463     o Split default parameters out of ini_parms.F into set_defaults.F.
1464    
1465    checkpoint18
1466     o Further changes for optional code generation with
1467       CPP - ugh!
1468    
1469  checkpoint17  checkpoint17
1470   o Beginning to incorporating modularity   o Beginning to incorporating modularity
1471     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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