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revision 1.8 by adcroft, Wed Jul 1 22:49:29 1998 UTC revision 1.225 by jmc, Mon Dec 15 23:40:21 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
7    o changes to permit hi-res, cubed-sphere, configuration
8      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
9      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
10      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
11        of surface winds for the cube
12      (A verification experiment, based on global_ocean.cs32x15, but with
13       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
14       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
15       complete with example surface forcing files and matlab scripts to look
16       at the output and compare it with that of global_ocean.cs32x15.)
17    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
18       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
19       to conform to the common rule.
20    o check-in the first version of the coupler + interfaces for multi-components
21       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
22       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
23       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
24       - ocean and atmos. share the same horizontal grid (no interpolation).
25       - exchanges between component and coupler is done in forward_step
26    o new verification experiment, cpl_aim+ocn:
27       coupled ocean - AIM atmosphere on cs32 grid.
28    
29    checkpoint52d_pre
30    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
31    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
32    
33    checkpoint52c_post
34    o Fixing OPTIONS files for use of exf:
35      - ALLOW_ECCO not needed
36      - ECCO_CPPOPTIONS.h should not be included from
37        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
38        as has been the case in the past
39      - All cal/exf related options are currently set in
40        single header file. Should remain so until we
41        agree on a consistent new policy.
42    o Removed all CPP options for cal package.
43      cal has no more CPP options.
44    o modified STOREs in GAD_ADVECTION
45    o corrected key comp. for passkey
46    
47    checkpoint52b_post
48    o new version: "thsice" of thermodynamic sea-ice pkg:
49     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
50     - modify fluxes but do not change theta directly;
51     - light cleaning of bulk_force pkg (still needed with thsice).
52     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
53       + output_thsice.txt to test thsice & bulk_force pkgs.
54    o put back grid & coriolis monitor output.
55    checkpoint52b_pre
56    
57    o call "do_the_model_io" at the beginning (=> dump initial state)
58    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
59    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
60      (need info on NUMBER_OF_PTRACERS)
61    o missing PTRACERS headers in some routines
62    o default tamc.h in pkg/autodiff supposed to crash
63      to ensure proper customization
64    
65    checkpoint52a_post
66    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
67      - moved surfaceTendencyTice from pkg/seaice to main code
68      - subroutine FREEZE_SURFACE now limits only surface temperature
69        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
70        => new output.txt for global_ocean.cs32x15 & global_with_exf
71      - keep the old version of FREEZE for backward compatibility;
72        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
73      - corresponding modifs for TAF directives
74    o added surface flux output variables to TIMEAVE_STATVARS
75    o time-averaged output for pkg/ptracers
76    o fix problem with ECCO-related divided adjoint
77      snapshot file was missing some ad-variables,
78      but no warning issued by TAF
79    
80    checkpoint52a_pre
81    o some bug fixes for #undef REAL4_IS_SLOW
82    
83    checkpoint52 = ecco_c52_e35
84    o after testing adjoints of checkpoint51u_post
85    
86    checkpoint51u_post
87    o this is the post-merge tag of the ecco-branch
88      (needs another clean checkout and re-testing)
89    o various natl_box_adjoint configs and results
90      but no input fields
91    o obcs adjoint not yet merged!
92    o adding ECCO global 1x1 and 2x2 degree configs
93    o updated/extended some store directives for seaice
94    o pkg/ecco now containes ecco-specific part of cost function
95    o top level routines the_main_loop, forward_step
96      supersede those in model/src/
97      previous input data.cost now in data.ecco
98      (new namelist ecco_cost_nml)
99    o in ctrl/ cleaned some cross-dependencies and updated CPP options
100    
101    checkpoint51t_post
102    o this is the pre-merge tag of the ecco-branch
103    
104    checkpoint51s_post
105    o cleanup: removed various obsolete #define-s
106    o pkg/grdchk
107      - renamed 'ph-grd 3' to 'grad-res'
108      - merged from ecco-branch
109        (remaining bug fixes for obcs gradient checks)
110      - additional high-precision output for testreport
111        (grep for 'precision_grdchk_result')
112    
113    checkpoint51r_post
114    o cleaned up or removed CPP_OPTIONS.h files
115    o updated results for some of the tests to reflect the new
116      optfiles (-ieee: -O0 instead of -O3)
117    
118    checkpoint51q_post
119    o cd_code:
120      - moved cd_scheme.F -> cd_code_scheme.F
121      - separate read_checkpoint from cd_code_ini_vars.F
122      - separated cd_code part from write_checkpoint
123      - updated AD_SOURCE, generated .flow
124      - added CD_CODE_VARS.h to the_main_loop
125      - Moving cd_code specific store dir.s to pkg/cd_code
126    o ctrl package totally restructured
127      - pack/unpack now optional and decoupled from
128        xx_/adxx_ I/O
129      - ctrl_pack/unpack cleaned
130        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
131      - confined inclusion of AD_CONFIG.h to where necessary.
132    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
133    
134    checkpoint51p_post
135    o create initial cd_code package
136      - WARNING: the initialization of fields within packages
137        is broken because INI_FIELDS (where READ_CHECKPOINT is
138        called) is called *before* PACKAGES_INIT_VARIABLES.
139        This seems to be backwards since
140        1) its important to initially zero the entire field including
141           the "halo" region
142        2) zeroing needs to be done *before* reading pickup info
143           and the pickup call might or might not happen in any
144           particular run
145      - this needs an overhaul for R2
146    o cleanup verification/*/code/GMREDI_OPTIONS.h
147    o cleanup testreport
148    
149    checkpoint51o_post
150    o bringing AD-related verif's up to date with genmake2
151      - carbon/
152      - global_ocean.90x40x15/
153      - hs.94.1x64x5/
154      - (front_relax/ )
155    o (more) consistent directory structure for AD-related verif.'s
156    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
157    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
158    o bug fix in find_alpha.F for MDJWF:
159      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
160        change rho -> rho-rhoConst
161      - replace call find_rho to find_rhonum
162    o initialisation of rFlx extended to full array (required by TAF)
163      and shifted to thermodynamics
164    o removed PTRACERS.h in ptracers routine
165    o added surfacetendencyPtr to S/R parameter list pracers_forcing
166    o Correcting initialisations for fVerU, fVerV.
167    o helping TAF to recognize dependency on kUp for
168      fVerU, fVerV
169    o Replacing delZ by delR in pkg/ctrl/
170    checkpoint51o_pre
171    
172    o undid all of cp51 pending some cleanups and discussion
173    o added the [#include "AD_CONFIG.h"] statement to all files that need
174       it for adjoint/tl #defines
175     o re-worked the build logic in genmake2 to support AD_CONFIG.h
176     o removed tools/genmake since it no longer works
177    
178    checkpoint51n_post
179    o modifications to make FREEZE flux visible to pkg/kpp
180      - moved surfaceTendencyTice from pkg/seaice to main code
181      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
182      - subroutine FREEZE now limits only surface temperature
183        (this means new output.txt for global_ocean.90x40x15,
184         global_ocean.cs32x15, and global_with_exf)
185    o added surface flux output variables to TIMEAVE_STATVARS
186    
187    checkpoint51n_pre
188    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
189    o added [#include "AD_CONFIG.h"] to all files that use the following
190      defines:
191      - ALLOW_ADJOINT_RUN
192      - ALLOW_TANGENTLINEAR_RUN
193      - ALLOW_ECCO_OPTIMIZATION
194    
195    checkpoint51m_post
196    o incorporating changes to get TAMC/TAF working in genmake2
197      - added new TAMC/TAF targets to the Makefile
198      - various cleanups related to package handling
199      - these changes should have no impact on the forward model
200    
201    checkpoint51l_post
202    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
203     - faster algorithm for cal_addtime.F
204     - higher precision arithmetic, where needed
205     - pkg/exf *startdate variables changed from calendar date to
206       model integration time
207    
208    checkpoint51l_pre
209    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
210    o enable to apply restoring on S & T only in a latitude band.
211    o update output (external_forcing_surf modif. change truncation errors)
212       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
213    
214    checkpoint51k_post
215    o change default to: useNHMTerms=.FALSE.
216     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
217       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
218     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
219        exp1, ideal_2D_oce
220     - change data file of oceanic exp (leave the results unchanged for now)
221       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
222    o set gravitySign automatically according to the vertical coordinate used
223      (and change sign: back to "logical" value: +1 when R increases downward)
224    o added an include barrier to the default CPP_OPTIONS.h and
225      removed the #include "PACKAGES_CONFIG.h" from it
226    o fix a bug in mom_fluxform (from chk51j_post)
227    
228    checkpoint51j_post
229    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
230    o adjusted some flow directives (dynamics, thermodynamics)
231    o added cubed-sphere case to test cost function
232    o heckpoint_lev?_directives.h now include
233      pkg-specific directives, whenever those are enabled.
234    o Moving pkg-specific flow directives to corresponding pkg
235      Moving pkg-specific differentiation list to corresponding pkg
236      Moving pkg-specific checkpoint-lev storing to corresponding pkg
237      ---> conventions are
238           - pkg_ad.flow
239           - pkg_ad_diff.list
240           - pkg_ad_check_lev?_dir.h
241    
242    checkpoint51i_post
243    o merge of the branch-genmake2
244      - knowingly breaks the older genmake
245      - automatic generation of all ALLOW_${PKG_NAME} defines
246      - new testreport supersedes older testscript
247    o large number of package inclusion and header cleanups
248    checkpoint51i_pre
249    
250    o new output for adjoin of global ocean vector invariant
251    o fix for checkpoint of thermodynamic seaice and bulk_force
252    o Steph gchem various cleanups
253    
254    checkpoint 51h_pre
255    o fixed some single quotes
256    o modify gchem pkg to be more versatile
257    o modifications to clean up dic pkg
258    o add pkg/cfc
259    
260    checkpoint51g_post
261    o provide links for ARPACK and ADM*TLM
262    o start removing verification/vero/
263    o update AD-related stuff
264      (in particular some IF-statements in model/src/ routines)
265    o adding to verification/global_ocean.90x40x15/ adjoint of
266      vector invariant setup
267    
268    checkpoint51f_post
269    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
270    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
271      of tracer Green's fucntions for ocean inversion project.
272    
273    checkpoint51f_pre
274    o Added on-the-fly spatial interpolation capability
275        "USE_EXF_INTERPOLATION" to pkg/exf.
276      - This is a temporary Cartesian-grid hack until
277        the super-duper ESMF coupler becomes available.
278      - See verification/global_with_exf/README for usage example.
279      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
280        flags and modified pkg/seaice accordingly.
281    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
282        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
283        non-local transport term.
284    
285    checkpoint51e_post
286    o pkg/mom_vecinv:
287      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
288      - add time-ave diagnostic of vorticity advection.
289    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
290    o atmospheric geopotential: - include water vapor effect;
291                                - use p^kappa in p* scaling.
292    o land pkg: read initial state from files.
293    o AIM : add stratospheric drag in the upper level
294    
295    checkpoint51d_post
296    o change function ILNBLNK (=> last non-blank char.) to return zero
297      (instead of the string length) when the string. char is empty
298    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
299    o modif's to restore TAMC compatibility
300      - avoid "_d" constructs in PARAMETER declarations
301      - avoid interrupting lines by comment lines
302    o Use cluster local disks for purely local I/O
303      vs. globally visible disks needed for ctrl stuff
304      (merged from ecco-branch)
305      - new active_file_loc... and mdsio_..._loc routines
306      - affected packages: autodiff, ctrl, grdchk, mdsio
307    
308    checkpoint51c_post
309    o introducing integer flag debugLevel
310      - debLevZero: suppress all output
311      - debLevA: standard
312      - debLevB: equivalent to current debugMode=.TRUE.
313    o introducing pathname variable mdsioLocalDir for mdsio
314      that can be specified at runtime
315      (relevant for cluster I/O to local disk)
316    `
317    >>>checkpoint51b_post
318    adjoint of ptracers
319    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
320    o extended state in checkpoint_lev?, etc.
321    o alternative ctrl/cost with tr1 or ptracer
322    o new comlev1_bibj_ptracers
323    o new ptracers.flow
324    o made ptracers_forcing same as external_forcing_s
325    o added verification for adjoint with ptracers
326      - adm. grdchk fail so far
327      - tlm. grdchk OK
328      - checked tapelev/comlev recomputations: OK
329    <<<checkpoint51b_pre
330    
331    checkpoint51a_post
332    o added code for biogeochemistry package
333      - new pkgs: dic, gchem
334      - new subroutine in ptracers
335    o modify code for biogeo packages
336      - in model/src and pkg/ptracers
337    
338    checkpoint51
339    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
340      - autodiff, ctrl, exf, grdchk, seaice
341      kept separate packages
342      - cost, ecco, obcs
343    o updating verification/internal_wave, verification/lab_sea
344      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
345    
346    checkpoint50i_post
347    o Preparing next differentiable checkpoint and sync
348      of MAIN vs. ecco-branch
349      - 1st step: this one is differentiable
350      - 2nd step: next(! not this) checkpoint will have updated packages
351                  from ecco-branch)
352    
353    checkpoint50h_post
354    o new package "land": provide surface BC for AIM.
355    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
356    o AIM: use true log-P extrapolation for near surface temp (= as in
357        F.Molteni paper) ; update aim.5l_cs output.
358    o New variable in PARM03 for more flexible pickups
359    o somewhat cleaned package initialisation sequence for
360      ctrl/ cost/ ecco/ in packages_... routines
361    
362    checkpoint50g_post
363    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
364      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
365      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
366        made the default because of faster convergence than ADI
367    
368    checkpoint50f_post
369    o exf totally restructured
370      - replaced all exf_set_ routines by one generic exf_set_gen.F
371        and made sure it's still differentiable
372      - split exf_getffields.F into new exf_bulkformulae.F
373      - exf_inscal_/exf_outscal_ suffixes consistent with field names
374      - updated adjoint/makefile and relevant verif. accordingly
375    
376    checkpoint50f_pre
377     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
378          + change Evap over land. (update aim.5l_cs output)
379     o added missing .cvsignores and made uniform across expts
380     o changed configuration of tidal_basin_2d expt
381     o added pkg/debug functions for tracing code in fatal crashes
382     o tidied pkg/monitor to use MONITOR_OPTIONS.h
383     o new fn in pkg/monitor to stop model if solution grows too big
384     o removed lots of single quotes from comments
385    
386    checkpoint50e_post
387    o make KPP work with PTRACERS
388     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
389       nearly a copy of kpp_transport_s
390     - there is no analogue to SurfaceTendencyS, so I have to use
391       gPtr(of the surface layer) instead
392    o add a new platform SunFire+mpi (SunFire 15000) to genmake
393    checkpoint50e_pre
394    
395    checkpoint50d_post
396    o change kpp output from multiple-record state files to single-record state
397      files analogous to write_state.F
398    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
399      analogous to the cg2d-related output.
400    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
401      so that writing to internal file fn (with length 512) fails.
402    checkpoint50d_pre
403    
404    checkpoint50c_post
405    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
406    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
407    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
408    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
409    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
410    
411    checkpoint50c_pre
412    Merging from release1_p13:
413    o bug fix for pkg/seaice dynamic solver
414    o Added SEAICE_initialHEFF to pkg/seaice
415    
416    checkpoint50b_post
417    o store u*,v* in gU,V instead of in guNm1,gvNm1
418    o in order to put the momForcing out of the Adams-Bashforth:
419      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
420      to timestep.F
421    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
422    o re-generate output for highly sensitive test-exp:
423       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
424    
425    checkpoint50b_pre
426    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
427    o corrected CPP option mismatch in exf_Bulk... functions for case
428      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
429    
430    checkpoint50a_post
431    o Bug fix for merging between c50 and KPP.
432      ikey was passed from thermodynamics to kpp_calc via
433      common block rather than being recomputed in kpp_calc,
434      in contradiction with new key itdkey.
435      New key ikppkey created, and tamc.h headers updated.
436    
437    checkpoint50
438    - 2nd step of merge with ecco-branch:
439      merge changes in ecco-branch back into main trunk
440    - bug fix in find_alpha
441    - more storing in gmredi_calc_tensor.F, kpp_routines.F
442    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
443    - merged some sliced AD support routines
444    
445    checkpoint49
446    merged from ecco-branch:
447    o exf:
448      - Enable initialisation of forcing fields to constant
449        (runtime) values.
450      - in exf_getffields.F
451        Reduce i-/j-loop to interior domain, discarding overlaps.
452        That also fixes wrong TAF-key computations for key_1, key_2
453        with bulf formulae.
454      - exf_init.F modify #ifdef for exf_init_evap
455      - exf_getffieldrec.F, ctrl_getrec.F
456        The following INT-usages are not safe:
457          fldsecs  = int(fldsecs/fldperiod)*fldperiod
458          fldcount = int(fldsecs/fldperiod) + 1
459        and were modified.
460    o autodiff: checkpoint_lev...
461      - updated storing for bulk formulae (some arrays were missing)
462      - added state for seaice package
463      - synchronized with main branch
464    o DIVA:
465      Modif.s in
466      - the_main_loop.F
467      - the_model_main.F
468      and added cost_final_restore.F cost_final_store.F
469      o With these changes, it is possible to fully separate
470        the first forward run to compute the cost function (mdthe_main_loop)
471        and adjoint runs over individual DIVA intervals (adthe_main_loop)
472        into separate model executions.
473        This enables better tuning of DIVA to given queue sizes.
474      o Loss of cost function value in consecutive DIVA runs is
475        fixed by storing to 'costfinal' file.
476      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
477        beginning/end of adjoint integration is accounted for.
478      The current changes apply to TAF-1.4.26.
479      TAF has one remaining bug, requiring one manual change
480      (see MITgcm manual).
481    o cal: synchronized between MAIN and ecco-branch
482    
483    checkpoint48i_post
484    o Changes to restore differentiability of code w.r.t. previous tag
485      (mostly adding new routines to make list and replacing
486      pressure by totPhiHyd).
487    o Updated and merged grdchk package
488      - has both ADM and TLM checks
489      - works for single- and multi-proc.
490      - output cleaned
491      - worked successfully for parallel DIVA
492    o genmake:
493      - Adding -platform=SP4
494      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
495    o Modif. for DIVA:
496      ctrl_unpack should not be called in intermediate DIVA interval.
497      (similar thing would apply for active files such as
498      tbar, sbar, psbar, which should not be reinitialised;
499      only relevant for ecco-branch)
500    
501    checkpoint48h_post
502    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
503    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
504    o Added SEAICE_initialHEFF to pkg/seaice
505    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
506    
507    checkpoint48g_post
508    --- EOS:
509    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
510      store total Potential in totPhyHyd for diagnostics & EOS.
511    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
512    --- Pressure/geopotential gradient:
513    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
514    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
515      ( changes results of global_ocean_pressure )
516    o NLFS + z-coord.: add eta*Rho' contribution.
517    o accurate phiHyd when using interface-W at the middle between 2 centers
518     ( changes results of ideal_2D_oce )
519    o includes r* 2nd term in potential gradient.
520    
521    checkpoint48f_post
522    Merging from release1_p12:
523    o Modifications for using pkg/exf with pkg/seaice
524      - improved description of the various forcing configurations
525      - added basic radiation bulk formulae to pkg/exf
526      - units/sign fix for evap computation in exf_getffields.F
527      - updated verification/global_with_exf/results/output.txt
528    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
529      (SBO) core products, including oceanic mass, center-of-mass,
530      angular, and bottom pressure (see pkg/sbo/README.sbo).
531    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
532      to avoid negative values in shallow regions.
533      - updated verification/natl_box/results/output.txt
534      - updated verification/lab_sea/results/output.txt
535    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
536    o Added useSingleCpuIO option (see PARAMS.h).
537    o Updated useSingleCpuIO option in mdsio_writefield.F to
538      work with multi-field files, e.g., for single-file pickup.
539    o pkg/seaice:
540      - bug fix in growth.F: QNET for no shortwave case
541      - added HeffFile for specifying initial sea-ice thickness
542      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
543    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
544      kpp_transport_t.F, forward_step.F, and the_main_loop.F
545    o pkg/seaice:
546      - adjoint-friendly modifications
547      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
548    
549    checkpoint48e_post
550    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
551    o dynamics: change definition of computational domain & adapt mom_fluxform
552      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
553    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
554        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
555        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
556        global_ocean.90x40x15 global_with_exf global_ocean_pressure
557        inverted_barometer solid-body.cs-32x32x1
558      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
559    
560    checkpoint48d_post
561    o in preparation for r*:
562     a) use pre-computed gradient of hydrostatic potential:
563        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
564     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
565        => affects results of glob_oce_pressure (different truncation error)  
566      update output.txt of ideal_2D_oce & global_ocean_pressure
567    
568    checkpoint48d_pre
569    o in preparation for r*:
570      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
571      pass the 2 comp. of the grad. as arguments to momentum S/R.
572      but for the moment, only used if it does not change the results.
573    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
574    
575    checkpoint48c_post
576    Modifications in treatment of initial flux forcing controls
577    to avoid extra storing of flux fields.
578    
579    checkpoint48c_pre
580    o Added tidal_basin_2d experiment (currently 1D!)
581    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
582    
583    checkpoint48b_post
584    o r* coordinate added in #ifdef NONLIN_FRSURF block.
585     (modification to pressure gradient not yet implemented)
586    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
587      (for U & V) that are used for vertical advection of momentum.
588    
589    checkpoint48a_post
590    o In preparation for r*, use temp. array to compute vertical transport
591       in flux-form momentum pkg. => change results of few test-exp.
592      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
593                        lab_sea, natl_box & plume_on_slope
594    
595    checkpoint48
596    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
597    
598    checkpoint47j_post
599    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
600    o moved adexch from forward_step to addummy_in_stepping
601    o added exch in ctrl_map_...
602    o aveFreq.=0. at end of cost_final to avoid overwrite in
603      reverse checkpointing loop
604    o Yet more changes in gmredi:
605      * adgmredi_calc_tensor
606        avoiding all recomputation of gmredi_slope_limit
607      * adgmredi_x/y/rtransport
608        added flag for excessive storing to avoid recomp. of
609        u/v/rtans, dTdx/y/z
610        -> this is not really necessary and very memory-consuming
611      * adgmredi_slope_psi:
612        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
613      * gmredi_slope_limit
614        re-activated full calculation of taperfct for case 'ac02'
615    o updating verification/ adjoints of carbon, global_ocean.90x40x15
616    
617    checkpoint47i_post
618    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
619    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
620      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
621    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
622    o gmredi: fix few bugs.
623    
624    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
625    This will be a good checkpoint to plug into the ecco-branch.
626    o few modif.'s to get latest version adjointed
627      (mainly kick out code in ini_linear_phisurf)
628    o modif's to run adjoint with exactConserv
629    o case GM_BOLUS_ADVEC should be cleaned
630      S/R gmredi_slope_psi should be cleaned
631    o verification/carbon now has exactConserv=.TRUE.
632    
633    checkpoint47g_post
634    o time-average AIM output: becomes independent from statvars time-average
635      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
636    o After TAF bug fix:
637      Tested adjoint of gmredi package.
638      Tests were done with checkpoint47 rather than with latest
639      checkpoint47f_post since the latter is broken for the adjoint
640      verification/carbon/ contains both ADM and TLM gradient checks.
641    Here they are, before they get changed/lost/stolen.
642    Mostly modif.'s to fix numerical sensitivities.
643    Gradient checks OK for
644    - GM_taper_scheme:
645      * clipping
646      * ac02
647      * linear
648      * glw91
649      * dm95
650      * ldd97
651    - GMREDI_OPTIONS:
652      * GM_VISBECK_VARIABLE_K
653      * GM_NON_UNITY_DIAGONAL
654      * GM_EXTRA_DIAGONAL
655      * GM_BOLUS_ADVEC
656    in conjunction with data.gmredi parameters to be checked in
657    in a few minutes under verification/carbon/code/
658    
659    checkpoint47f_post
660    Merging from release1_p10:
661    o modifications for using pkg/exf with pkg/seaice
662      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
663        and SEAICE_EXTERNAL_FLUXES
664      - pkg/exf CPP options EXF_READ_EVAP and
665        EXF_NO_BULK_COMPUTATIONS
666      - usage examples are Experiments 8 and 9 in
667        verification/lab_sea/README
668      - verification/lab_sea default experiment now uses
669        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
670    
671    checkpoint47e_post
672    o created a tag prior to creating a branch
673    
674    checkpoint47d_post
675    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
676      at the bottom boundary had an erroneous half slip boundary condition
677    o added bottom drag and no slip boundary condition capabilities to
678      oceanic pressure coordinates code
679    o added new verification experiment global_ocean_pressure, this experiment is
680      also described in the tutorial section of the manual
681    checkpoint47d_pre
682    
683    checkpoint47c_post
684    o Added a verification experiment for a global cubed-sphere ocean run
685      -  verification/global_ocean.cubed32x32x30
686      -  uses pkg/therm_seaice and pkg/bulk_forcing
687    
688    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
689    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
690      when using P-coordinate; only implemented for atmospheric config.
691    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
692      NOTES: requires option NONLIN_FRSURF to be "#define".
693    o update advect_xz/results/output.txt (left from checkpoint44g_post)
694    
695    checkpoint47b_post
696    Merging from release1_p9:
697    o pkg/seaice
698      - removed GOTO's and added taf directives
699      - double precision constants to reduce the g77 (Linux)
700        to F77 (SGI) differences reported in release1_p8
701    o tools/genmake
702      - added SGI options
703    o verification/testscript
704      - updated to that of checkpoint47a_post
705    o verification/global_ocean.90x40x15/input/eedata
706      - modified for SGI f77 compatibility
707    o verification/lab_sea
708      - added description of sea-ice model
709      - added missing matlab routines
710      - added test of thermodynamics parallelization
711    
712    checkpoint47a_post
713    o new pkg: aim_v23
714     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
715       for now, keep the same surface forcing as before.
716     - Part-Cell implemented into AIM; check that Heat & Water are conserved
717     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
718     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
719    o add diagnostic of surface correction term in monitor output
720    
721    o bulk_force and therm_seaice
722    - Two packages:  bulk_force (Bulk forcing)
723      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
724    - Earlier integration from Stephaine Dutkiewicz
725      and Patrick Heimbach.
726    - Two ifdef statements for compile time,
727       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
728    
729    checkpoint47
730    differentiable version of checkpoint46n_post
731    o bug fix in quasihydrostaticterms
732    o * "clean" adjoint code (in terms of extensive recomputations)
733        can now be obtained for all GMREDI options (i.e. for
734        - GM_VISBECK_VARIABLE_K
735        - GM_NON_UNITY_DIAGONAL
736        - GM_EXTRA_DIAGONAL
737        - GM_BOLUS_ADVEC )
738      * However, wrong gradient check problem remains unsolved.
739      * New CPP options have been introduced for different
740        tapering schemes
741    o external_fields_load now part of differentiation list
742    o pressure needs multiple storing;
743      would be nice to have store_pressure at beginning or
744      end of forward_step, e.g. by having phiHyd global (5-dim.)
745      (NB: pressure is needed for certain cases in find_rho,
746      which is also invoked through convective_adjustment).
747    o recomputations in find_rho for cases
748     'JMD95'/'UNESCO' or 'MDJWF' are OK.
749    o #define ATMOSPHERIC_LOADING should be differentiable
750    o ini_forcing shifted to begining of initialise_varia
751    o Incorporating QNVS line search routines into MITgcm
752      (this is separate code, and therefore not under pkg)
753      lsopt/, optim/
754    o Updated verification/carbon/
755      - #define GM_VISBECK_VARIABLE_K
756      - GM_taper_scheme    = 'ldd97'    
757    
758    checkpoint46n_post
759    Merging from release1_p8:
760    o verification/natl_box:
761      updating new external_fields_load routine
762    o New package: pkg/seaice
763      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
764      The sea-ice code is based on Hibler (1979-1980).
765      Two sea-ice dynamic solvers, ADI and LSR, are included.
766      In addition to computing prognostic sea-ice variables and diagnosing
767      the forcing/external data fields that drive the ocean model,
768      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
769      The implied surface heat flux is then stored in variable
770      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
771      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
772      non-local transport term.  Because this call precedes model
773      thermodynamics, temperature under sea-ice may not be "exactly" at
774      the freezing point by the time theta is dumped or time-averaged.
775      N.B.: fairly large differences in accuracy occur across
776            different platforms/compilers; comparison between
777            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
778            generated output gives:
779       T           S           U           V
780      C D M    c        m  s        m  s        m  s        m  s
781      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
782      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
783      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
784    
785      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
786    o GAD:
787      - generated new common blocks to account for call of
788        same gad routines with differing traceridentities
789        (needed to modify tracerIdentity indices in GAD.h)
790      - generated separate common blocks for case useCubedSphereExchange
791        (Department of Futurology)
792      - parameter lists to gmredi_?transport: added tracerIdentity
793      - added new key indices to tamc.h
794    o external_fields_load:
795      - added this routine to TAF list
796      - needed to make some common blocks global and additional storing
797        along the same lines as exf package (checkpoint_lev?_directives.h)
798    o exf:
799      updated external forcing package
800      - bug fixes carried over from ecco-branch
801        (missing OBCS_OPTIONS.h in two routines)
802      - enable easy to use "no forcing".
803      - added exf I/O for atmospheric loading
804      - added exf I/O for runoff data
805      - transfered scaling between exf <-> MITgcm to exf namelist
806    o Adding new verification experiment global_with_exf.
807      This verification experiment is almost identical to the
808      global_ocean.90x40x15 experiment, except that it uses
809      the exf (and cal) package instead of the
810      external_fields_load routine (cf README file).
811    
812    checkpoint46m_post
813    o modified testscript to return -- when there are no lines of "%MON" output
814    o added new flag "quasiHydrostatic" for QH mode
815      and new routine quasihydrostaticterms()
816    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
817      New routine: mom_u_coriolis_nh()
818    o fixed sign of non-hydrostatic metric terms in u and v equations.
819      Depend on correct sign of gravitySign.
820    o added work.pc* to .cvsignore in aim directories using ifc
821    o introduced flag for controllin non-hydrostatic metric terms
822    o removed gravitySign from PARM04
823    o switched to g77/ifc from pgf77 in aim experiments
824    
825    checkpoint46l_post
826    o made convective adjustment work with pressure coordinates:
827     - changed the direction of k-loop in convective_adjustment.F for the
828       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
829     - adjusted the reference pressure k-index in convective_adjustment.F
830     - adjusted the convection condition in convect.F (in analogy to
831       calc_ivdc.F)
832     - convective_adjustment no longer computes anything on the halos
833     - removed the warnings about negative salinity from find_rho.F and
834       find_alpha.F; instead the new routine look_for_neg_salinity, called
835       at the beginning of find_rho, find_alpha, and find_beta, does a
836       check of the entire slice, if CPP-option
837       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
838    checkpoint46l_pre
839    
840    checkpoint46k_post
841    o fixed the verification/global_ocean.90x40x15 experiment:
842     - new bathymetry (the world according to A., JMC, and M.)
843     - new initial fields and forcing fields (*.bin files)
844     - new POLY3.COEFFS (for the next release one should switch to a full
845       equation of state: JMD95P or MDJWF)
846     - fixed several errors and redundancies in the data file
847     - experiment uses looped cells
848     - added matlab directory with diagnostic scripts for plotting of output
849    
850    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
851     - read AIM physics parameters from a file (data.aimphys)
852     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
853    
854    checkpoint46j_post
855    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
856    o move wVel computation at the end of the time step, in S/R integr_continuity
857    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
858    o update timeave pkg for wVel diagnostic.
859    checkpoint46j_pre
860    
861    checkpoint46i_post
862    o Clean up AIM package (and keep the results unchanged):
863      include CPP_OPTION and use IMPLICT NONE in all routines ;
864      declare all the variables _RL ; use _d 0 for all numerical constants.
865      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
866    
867    checkpoint46h_post
868    o cleaned up the use of rhoNil and rhoConst.
869      - rhoNil should only appear in the LINEAR equation of state, everywhere
870        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
871        and the dynamical equations are all divided by rhoConst
872    o introduced new parameter rhoConstFresh, a reference density of fresh
873      water, to remove the fresh water flux's dependence on rhoNil. The default
874      value is 999.8 kg/m^3
875    o cleanup up external_forcing.F and external_forcing_surf.F
876      - can now be used by both OCEANIC and OCEANICP
877    checkpoint46h_pre
878    
879     Added code to convert surface volume flux (fresh water) into
880     a mass flux when using P coordinates in the ocean (OCEANICP).
881     Note: It assumes you have set rho0=rhoConst=density of fresh water.
882    
883    checkpoint46g_post
884    o Include a new diagnostic variable phiHydLow for the ocean model
885      - in z-coordinates, it is the bottom pressure anomaly
886      - in p-coordinates, it is the sea surface elevation
887      - in both cases, these variable have global drift, reflecting the mass
888        drift in z-coordinates and the volume drift in p-coordinates
889      - included time averaging for phiHydLow, be aware of the drift!
890    o depth-dependent computation of Bo_surf for pressure coordinates
891      in the ocean (buoyancyRelation='OCEANICP')
892      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
893        Theta, Salinity, and Pressure in the parameter list. This routine is
894        presently contained in find_rho.F. This routine does not give the
895        correct density for 'POLY3', which would be a z-dependent reference
896        density.
897    o cleaned up find_rho
898      - removed obsolete 'eqn' from the parameter list.
899    o added two new verification experiments: gop and goz
900      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
901    checkpoint46g_pre
902    
903    checkpoint46f_post
904    o Enable tangent linear (forward mode) gradient checks:
905      - extended active file handling to g_... files
906      - added TANGENT_SIMULATION to theSimulationMode
907      - extended grdchk package accordingly
908    o added tangent linear setup in verification/carbon/code_ftl
909    o added adjoint setup in verification/front_relax/code_ad
910    
911    checkpoint46e_post
912    o Added new equation of state -> MDJWF
913      - EOS of McDougall et al., 2002, JAOT, submitted
914      - caveat: the equation of state is only valid for a smaller (more
915        realistic?) range of values than JMD95P/Z and UNESCO
916      - added masks to the calculation of pressure in store_pressure
917      - added more check values for density in check_eos (ini_eos.F), some of
918        the old check values are out of the range of the MDJWF-eos, so don't
919        expect perfect matches for those
920    checkpoint46e_pre
921    
922    checkpoint46d_post
923    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
924      'OCEANICP', also initialised field pressure correctly in ini_eos in the
925      case of pressure coordinates. eosType='JMD95Z' in
926      combination with buoyancyRelation='OCEANICP' now causes an error.
927    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
928      in find_alpha/beta.
929    checkpoint46d_pre
930    
931    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
932      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
933    
934    checkpoint46c_post
935    o Changes necessary for ocean in p-coordinates
936     -  Added new buoyancy relation = 'OCEANICP'
937     -  Added new parameters = gravitySign (this used to be contained inside
938        the factor dRdZ which I added when we first switched to R coordinates).
939     X GM/Redi is not compatible (yet)
940     X bottom drag and no-slip need to be debugged.
941    checkpoint46c_pre
942    
943    checkpoint46b_post
944    o Added new equation of state -> JMD95Z and JMD95P
945      - EOS of Jackett and McDougall, 1995, JAOT
946      - moved all EOS parameters into EOS.h
947      - new routines ini_eos.F, store_pressure.F
948    o Added UNESCO EOS, but not recommended because it requires
949      in-situ temperature (see JMD95)
950    o Modified formatting for knudsen2.f in utils/knudsen2 and added
951      unesco.f to be used with POLY3
952    checkpoint46b_pre
953    
954    checkpoint46a_post
955    o Added (atmospheric) pressure loading
956      - new field in FFIELDS.h, etc...
957      - new cpp flag ATMOSPHERIC_LOADING
958    o Changed hFacC to _hFacC in calc_phi_hyd.F
959    o Added SHORTWAVE_HEATING to some files for consistency
960    checkpoint46a_pre
961    
962    checkpoint46
963    further merges from release1_p5
964    o new ctrl package
965      - adopted from ECCO environment to enable optimization
966      - added Eliassen Palm fluxes to controls
967    o added Eliassen Palm flux controls to gradient check package
968    o cost package
969      - Compatible with new ctrl package
970      - added Eliassen Palm cost hooks
971      - modif's of existing cost functions
972    o Adjoint-related bug fixes in kpp:
973      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
974      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
975    o autodiff package
976      - flow directives:
977        + new for S/R do_the_model_io
978        + enhanced for S/R checkpoint
979        + new gmredi.flow
980      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
981        disable adcommon.h/g_common.h by default.
982      - fixed problem for adjoint of global_max
983    o modified verification/carbon/
984    o New setup for adjoint of global_ocean
985    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
986    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
987    o incorporated hooks for sponge layer code (external_forcing.F)
988    
989    checkpoint45d_post
990    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
991    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
992      (affects plume_on_slope "cg2d" output)
993    o add new parameter deltaTfreesurf for free-surface time stepping
994    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
995    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
996    o change phiMin in exp1 (to agree with documentation)
997    o add new flags:
998     - T,S forcing inside/outside Adams-Bashforth
999     - turn off temp,salt advection and/or forcing
1000     - for each tracer, define internal flag for multiDimAdvection & A-B
1001    o monitor: change definition of KE to check conservation of Energy
1002    
1003    checkpoint45c_post
1004    o Removed f90 comments ("!")
1005    o Modified initialisations to enable exf package for MITgcm
1006      (without invoking ECCO_PACKAGE).
1007    o modifications to gradient check package (Martin Losch)
1008      - enable centered differences
1009      - modified format of standard output
1010    
1011    checkpoint45b_post
1012    o cleaned exchange calls in cg2d
1013    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1014    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1015      to configure barotropic setup (Martin Losch)
1016    o moved some initialisations within bi,bj loop in dynamics
1017      (TAF flow dependency)
1018    o in initialise_varia, moved call packages_init_variables
1019      before convective_adjustment_init
1020      (corresponding adjustment of TAF tape initialisation).
1021    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1022    
1023    checkpoint45a_post
1024    o compute Rho over the whole domain (extend iMin,jMin indices)
1025    o specific exchange for X-slice domain (case Ny=1)
1026    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1027    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1028    
1029    checkpoint44h_post = checkpoint45
1030    o Fix to restore differentiability:
1031      place at which packages_init_variables is called in
1032      initialise_varia is crucial for reverse control flow.
1033    o modifications in GMRedi to enable stable adjoint
1034      (corresponding modif's in thermodynamics, dynamics)
1035    o added missing hook for sponge layer code in external_forcing
1036    o modified test cost functions
1037    o storing in gad_advection (plus removal of write(0,*)!
1038    o missing headers TR1.h added in convective_adjustment routines
1039    o errorMessageUnit set non-equal zero in eeboot
1040      (conflict on some platforms, e.g. IBM SP3)
1041    o modified carbon verif.
1042    
1043    checkpoint44h_pre
1044    o vertical grid option: allow to put the Interface at the middle between
1045      2 cell-centers ; replace delZ in pkg/kpp by drF.
1046    o GM Advective form: Tracers are advected using the residual transport (=
1047      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1048    
1049    checkpoint44g_post
1050    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1051      results) ; ifdef missing in thermodynamics.F
1052    
1053    checkpoint44f_pre,checkpoint44f_post
1054    o added PTRACERS package
1055      This allows an arbitrary number of passive tracers to be integrated
1056      forward simultaneously with the dynamicaly model.
1057      + Implemented so far:
1058        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1059        - I/O and checkpointing
1060        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1061      + Not implemented so far:
1062        - KPP
1063        - OBCS
1064      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1065        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1066        line in data.pkg.
1067      + This package is disabled by default since it increases storage.
1068    
1069    
1070    o testscript: added -cleanup option
1071    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1072                 b) enable to filter 2D fields.
1073    
1074    checkpoint44e_pre,post
1075    o re-wrote convective adjustment to use pre-calculated weights
1076      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1077      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1078      Original calls to convect() still in place.
1079    
1080    chkpt44d_pre,post
1081    o added missing EXCLUDE_MONITOR flags
1082    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1083      (incompatible typ in MIN/MAX expressions caused problems
1084      on IBM SP3)
1085    o in genmake added variable MAKEDEPEND
1086      plus resetting for case SunOS
1087    o added timer_stats.c routine for IBM SP3
1088    o removed variables in dynamics
1089    !!! I forgot to create tag chkpt44d_pre !!!
1090    !!! But chkpt44d_pre = chkpt44c_post    !!!
1091    
1092    o real fresh water flux implemented with non-linear free-surface.
1093    
1094    chkpt44c_pre,post
1095    o few fix (mask in shap_s2, EmPmR in external_field_load,
1096      USE_NATURAL_BCS in solve_for_P);
1097    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1098    
1099    checkpoint44b_pre/_post
1100    o merge of relevant stuff from the ecco-branch:
1101      - genmake: removed $S64 overwrite for case SunOS
1102      - pkg/exf: update and corrections for field swapping and obcs
1103      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1104                  harmonized between ECCO and MITgcm
1105      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1106                      updated checkpointing_lev... lists for obcs
1107      - model/src: minor changes in forward_step, plot_field
1108                   added directive for divided adjoint in the_main_loop
1109      - pkg/mdsio: added mdsio_gl_slice
1110    
1111    o check parameters & config (chkpt44a_pre,post)
1112    o OBC and NonLin_FrSurf.
1113    
1114    checkpoint44
1115    o fix bug in mom_vi_del2uv
1116    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1117    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1118    o update AIM experiments (NCEP input files)
1119    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1120    o added some stuff for AD
1121    
1122    checkpoint43
1123    o added two new advection tests
1124    o added global 4x4 degree ocean test
1125    o added test of H&S94 with free surface on cube
1126    o some final mods for gradient check, adjoint,...
1127    
1128    checkpoint42
1129      Fixed AD-related problems:
1130    o Store directives up-to-date with re-arranged Adams-Bashforth
1131      (mainly thermodynamics.F)
1132    o New store directives for multi-dim. advection schemes
1133      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1134      * new common block and key passkey
1135      (mainly gad_advection.F)
1136    o Modified store directives for split of dynamics/thermodynamics
1137      for the case ALLOW_KPP
1138    o Cleaned argument list for timestep_tracer.F
1139    
1140    checkpoint41
1141    o re-formatted/added comments in prologues of key subroutines
1142      to work with protex
1143    
1144    checkpoint40
1145    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1146    o added FLT (floats) package from Arne along with demo. experiment
1147    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1148      implementation of forward-in-time forcing terms
1149    o more mods for non-linear free-surface including new variable
1150    o modified multi-dim method to work on cube
1151    o bug fix in KPP (from DM)
1152    
1153    checkpoint40pre9
1154    o added DST advection schemes
1155    o fix MPI bug on SGI's
1156    o modifications for non-linear free-surface
1157    o fixed conditionals for fixed flow/passive tracer only mode
1158    o added tension/strain form of stress tensor
1159    o changes to commenting of arguments for TAF/TAMC
1160    o added/updated many matlab scripts
1161    o added multi-dimensional advection method for tracers
1162      
1163    checkpoint40pre8
1164    o new package rw/
1165      Added method for dumping intermediate local arrays:
1166      mdsio_writetile - same as mdsio_writefield except works from inside
1167                        bi,bj loop
1168      mdsio_writelocal - same as mdsio_writetile except works for local
1169                         arrays
1170      write_local_r? - higher-level wrapper for mdsio_writelocal
1171      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1172      Example given at end of mom_vecinv.F that dumps some local arrays.
1173    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1174      control flux-form versus vector invariant code.
1175      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1176      or genmake -DISABLE ...
1177    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1178      (additional storing is now needed for case vecinv;
1179      currently nothing implemented to switch this storing off
1180      in case fluxform is used since no CPP flag available).
1181    
1182    checkpoint40pre7
1183    o bug fix in dynamics.F
1184      calc_viscosity called before k=1,Nr loop.
1185    o added some #ifdef's ALLOW_PASSIVE_TRACER
1186    o cleaned initialisations in ctrl_map_ini
1187      related to TAF
1188    
1189    checkpoint40pre6
1190    o split dynamics into thermodynamics & dynamics
1191    o corresponding split of calc_diffusivity into
1192      calc_diffusivity, calc_viscosity
1193      (kpp_calc_diff, kpp_calc_visc).
1194    o Added diffkr, kapgm to control variables
1195    o bug fix in gmredi_slope_limit for ldd97
1196    
1197    checkpoint40pre5
1198    o proper initialization of Adams-Bashforth time stepping
1199      + uses forward step for very first step of model (iter=0)
1200    o re-generated *all* output since almost all output is modified by this
1201      change (sorry but we've been putting this one off for about 2 years)
1202      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1203        *not* regenerated since they are already out of date and I don't
1204        want to create the impression that they are suddenly working.
1205    o removed KAP stuff for DEC's
1206    o modified/added many .cvsignore files in */code and */input
1207    o added new expt "solid-body.cs-32x32x1"
1208      + this uses an alternative form of ini_curvilinear_grid.F which
1209        is not necessarily any better than the current one...
1210    
1211    checkpoint40pre4
1212    o added re-initialisations of utrans,vtrans,rtrans in
1213      calc_common_factors which are crucial for TAF.
1214    o extended iMin,jMin range for calc_common_factors,
1215      calc_diffusivity
1216    o added option ALLOW_PASSIVE_TRACER
1217    o a few minor updates and fixes
1218    
1219    checkpoint40pre3
1220    o created calc_gtr1.F for gad package
1221    o split the_main_loop and re-introduced forward_step
1222    o some recomputations of nIter0 for TAMC
1223    
1224    checkpoint40pre2
1225    o Updated to latest branch of AJA, JMC
1226    o Added gradient check package
1227    o Added routines for passive tracer handling
1228    o Added carbon sequestration sensitivity experiment
1229    
1230    checkpoint39
1231     o Modifications and fixes to support TAMC
1232       (mainly missing or wrong directives)
1233     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1234       in addummy_in_stepping
1235     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1236     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1237     o Included following packages:
1238       cal: calendar
1239       exf: external forcing
1240       ecco: essential routines to control use of cal, exf
1241             (NB: this is not the full ECCO environment)
1242     o disabled some packages by default in genmake
1243    
1244    checkpoint38
1245     o see notes_c37_adj.txt
1246     o corrected wrong layer index in external_forcing_t
1247     o replaced the_main_loop/forward_step by the_main_loop
1248     o removed forceoutput from write_state
1249       (replaced criteria for initial/final state)
1250     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1251    
1252    checkpoint37
1253     o mdsio.F routine split and packaged in pkg/mdsio
1254       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1255        used unless genmake -disable=mdsio)
1256     o allow a more precise surface-geopotential gradient for the atmosphere
1257       taking into account the change in space of Alpha (=1/rho) at the surface.
1258     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1259       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1260     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1261       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1262       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1263     o Time-Average diagnostics defined as a pseudo package "timeave".
1264     o pickup files : old pickup (before c35) did not work with new code (c35
1265       and after) unless activating 2 commented lines in initialise-varia.
1266     o Non-Hydrostatic pickup file Pb fixed.
1267     o bug with Rigid-lid version (since c35) fixed.  
1268    
1269    checkpoint36
1270     o implement Crank-Nickelson barotropic time-stepping
1271     o recover Time-Average diagnostics
1272     o fix Pb in checkpoint (PR#19)
1273     o AIM become a standard package ; clean unused CPP_kees
1274    
1275    checkpoint35
1276     o subtantial rewrite of dynamics.f
1277     o allows staggered time-stepping
1278     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1279     o added bottom drag (linear + quadratic)
1280    
1281    checkpoint34
1282     o Modified exchange routines for correct reverse simulation.
1283     o Added verification output to comply with bug fix in impldiff.F
1284       as of c33 (exp2, natl_box).
1285     o Corrected store directives in dynamics.F
1286     o Corrected array boundaries in impldiff.F
1287     o Corrected array dimensions in gmredi.
1288       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1289     o Added routine GLOBAL_SUM_INT to global_sum.F
1290     o Added mdsio_gl.F for ECCO purposes.
1291    
1292    checkpoint33
1293     o Fixed bug in lower BC in impldiff.F
1294     o Fixed confusion about units of forcing arrays in FFIELDS.h
1295       namely Fu,Fv,Qnet,Qsw,EmPmR:
1296       - Removed verification/natl_box/code/external_fields_scale.F
1297         (did not differ from that in model/src)
1298       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1299         (see FFIELDS.h for description)
1300       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1301         kpp_calc.F and kpp_transport_t.F
1302       - Removed model/src/external_fields_scale.F and calls to it
1303       - verification/natl_box uses flux data with "atmospheric" sign so
1304         a special version of external_fields_load.F is used to
1305         change the data as it's read in. This way, the arrays
1306         have the right units and signs at all times tha a user could
1307         possibly use them.
1308     o Corrected genmake to delete a temporary file during configuration
1309    
1310    checkpoint32
1311     o Scaling of forcing fields moved from external_forcing.F to
1312       external_fields_scale.F, called directly after loading fields.
1313     o Surface relaxation terms added to surface tendency fields in
1314       extra subroutine.
1315     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1316       fields.
1317     o Changes in GMRedi to comply with packaging structure.
1318     o Modifications and bug fixes in KPP package.
1319     o Verification experiment for KPP added (verification/nat_box/)
1320    
1321    checkpoint31
1322     o Packages interface brought in line with defined standard
1323       -> new routines packages_...F
1324       -> changes in initialise_fixed.F, initialise_varia.F
1325       -> enables initialisation interface for ECCO package
1326     o Rescaling of external forcing fields immediately after read
1327       (removed from external_forcing.F)
1328       -> new: surface_fields_scale.F
1329       -> affects ini_foorcing.F, external_fields_load.F
1330     o Computation of surface tendencies before tendency updates.
1331       -> new: external_forcing_surf.F
1332     o Change of variable names useGMRedi, useKPP, useECCO
1333     o Further changes in dynamics.F, impldiff.F for TAMC
1334     o Tested for experiments 0, 2, 4.
1335       - not yet tested for GMRedi.
1336       - not yet tested for KPP.
1337    
1338    checkpoint30
1339     o Updates for OBCs
1340     o New experiment for test OBCs (internal_wave)
1341     o New output.txt in verification/exp4/results/
1342     o Updates for KPP: calculation of viscosity corrected, new variables
1343       kpp_dumpFreq and kpp_taveFreq
1344     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1345       and entry for T90 in genmake
1346    
1347    checkpoint29
1348     o packaged KPP and GM/Redi
1349    
1350    checkpoint28
1351     o Corrected initialization of hFacMin for difference vertical coordinates
1352     o Modified calculation of partial cell thickness to more robust algorithm
1353     o config_summary.F: replaced write_1D_... by write_0D_...
1354       read_write.F: added subroutines write_0D_...
1355     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1356       included some initialisations required for TAMC.
1357     o routine calc_isoslopes: modified sqrt computation to make it
1358       differentiable for zero argument.
1359     o routines dynamics, impldiff:
1360       included store directives and tape key computations required for TAMC.
1361     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1362    
1363    checkpoint27
1364     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1365       formulation works properly with variable resolution.
1366     o restructured the calling tree between the_model_main() and dynamics()
1367     o split initialise() into initialise_fixed() and initialise_varia()
1368     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1369       in new routine ini_psurf()
1370    
1371    checkpoint26
1372     o moved some #ifdef in optional routines to encompass everything
1373       except the argument declarations. This was using up some memory.
1374     o fixed macros like _ADT to work with both versions of Linux cpp
1375     o cleaned up some unused and uninitialized variables
1376       (helps when debugging with strict compile options)
1377     o split up CPP_EEOPTIONS.h into options and macros
1378       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1379     o patch for 2 processor JAM mode
1380    
1381    checkpoint25
1382     o updates for OBCs and NH
1383     o dramatically reduced memory usage
1384     o added "JAM" routines for use on Artic network
1385     o parameterization of convection by implicit vertical diffusion
1386     o added a diagnostic of convective index
1387     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1388       (this is was partly for OBCs and NH but also in anticipation of
1389        an explicit free-surface option)
1390     o initial state input files for U and V
1391    
1392    checkpoint24
1393     o Removed some spurious "REAL"s
1394     o Updated KPP to latest version from JPL
1395     o Added a COS(latitude) in horizontal viscosity
1396    
1397    checkpoint23
1398     o Added del^4 diffusion for salt and temperature
1399     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1400    
1401    checkpoint22
1402     o Made many small changes: implicit none, format(i5), etc...
1403     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1404    
1405    checkpoint21
1406     o Introduced new I/O package that supports direct-access records (mdsio.F)
1407     o Split-up mid-level I/O routines
1408     o Updated input data for experiments 0,1,2,4 and 5
1409     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1410    
1411    checkpoint20
1412     o Tidied up open-boundaries some more
1413     o Added non-hydrostatic code
1414     o Fixed some input data
1415     o Modified MPI start-up to work in "coupled" context.
1416    
1417    checkpoint19
1418     o Tidied up directory structure for verification experiments.
1419     o Added new code for open boundaries.
1420     o Corrected advective terms near boundaries.
1421     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1422     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1423     o Split default parameters out of ini_parms.F into set_defaults.F.
1424    
1425    checkpoint18
1426     o Further changes for optional code generation with
1427       CPP - ugh!
1428    
1429    checkpoint17
1430     o Beginning to incorporating modularity
1431       for supporting atmos. and ocean configs.
1432     o Small changes for TAMC complinace
1433     o New ultra simple test case. Barotropic box
1434       configuration "exp0".
1435    
1436    checkpoint16
1437     o Minor changes to exchange routines to support
1438       accumulation in reverse mode. Adjoint of an
1439       assignment is an addition.
1440     o Changes to support compilation by TAMC (LR(1)
1441       syntax) and by g77 under Linux ( 72 character
1442       limit ).
1443    
1444    checkpoint15
1445     Rewrote exchange routines to allow
1446     o General tile <-> tile connectivity.
1447     o TAMC reverse mode flag ( is this really needed? )
1448     o Variable width overlap and exchange region widths.
1449     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1450       shmput/shmget, VIA, SYSV shmem and every other cool
1451       communication method.
1452    
1453    checkpoint14
1454     Consistent isomorphism chages made. These allow dynamical core
1455     to support both pressure and meters as a vertical coordinate.
1456    
1457    checkpoint13
1458     Release which corrects global_max problem and a couple
1459     of KGM time-averaging diagnostic errors. Also contains
1460     a double-gyre experiment setup as well as the baseline
1461     4 degree global template. The double gyre template is
1462     organised to allow it to be applied automatically to
1463     the baseline configuration.
1464    
1465    branch-point-rdot
1466     A few tidy-ups have been made bt the real point of this
1467     check-point (excuse the pun) is to allow a branch to be
1468     made for the purposes of adding the rDot alterations.
1469     I don't want to commit the rDot to the main-trunk until
1470     we've actually tested it...
1471    
1472    checkpoint12
1473     Tidy up and added generic genmake script (formerly
1474     configure script).
1475     Released to testers.
1476    
1477    checkpoint11
1478     Re-arranged initialise() and introduced ini_vertical_grid()
1479     and ini_masks_etc().
1480    
1481  checkpoint10  checkpoint10
1482   Introduced the configure script.   Introduced the configure script.
1483   Separated out the diags package.   Separated out the diags package.

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