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revision 1.41 by heimbach, Fri Jul 13 18:08:14 2001 UTC revision 1.277 by mlosch, Sun Apr 18 20:36:56 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
7      this does not change any of the results, because myIter=0 in swfrac always
8      lead to jwtype=2 (the default anyway), but the call makes little sense
9      as a default
10    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
11    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
12      atmospheric model (AIM) to use it ; add a "slab ocean" component.
13    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
14    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
15    o extending useSingleCpuIO option to work with new exch2 I/O format
16      - old-style, missing-tile I/O is still accessible by defining CPP
17        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
18    o monitor package can write to NetCDF files and/or STDOUT
19    o fix re-definition bug in MNC_GRID_INIT_ALL()
20    o doc/api_reference added
21      - a framework for building an API Reference Manual using all
22        the "protex" comments embedded in the code
23      - see pkg/generic_advdiff, pkg/mnc for examples
24    o MNC:
25      - make myThid the last argument for all subroutines
26      - new default for the grid files: NO halos
27      - add useMNC and other run-time flags
28      - separate per-file-group handling of the unlimited dimension
29      - early initialization of MNC w/ flags read at the eeboot stage
30        and lookup tables set in initialize_fixed
31      - write all MNC output to a freshly-created directory
32    o thermodynamics sea-ice (thsice) is now tested with testreport.
33    o test exp. advect_cs: use the standard cs32 grid ; update output.
34    o Added functionality to grdchk:
35      pick global i,j,k position (or nearest wet) where to perform check.
36    
37    checkpoint52l_post
38    o new land formulation:
39      a) use ground enthalpy as prognostic variable to ensure exact
40         energy conservation.
41      b) account for water temperature and for latent heat of freezing
42         in all processes (rain, run-off, ground storage)
43      c) compute surface and ground temperature implicitly.
44    o aim_v23 modification for new land model:
45      a) Treat separately land / ocean / sea-ice surface fluxes
46         to allow implicit computation of land & sea-ice surface temp.
47      b) add snow precipitation.
48    checkpoint52l_pre
49    
50    o fix problem (when 1 tile is empty) in min/max monitor.
51    o fix bug in timeAve (u,vZetatave in common block)
52    o no restoring terms under ice for pkg/seaice
53    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
54    o bug fix for pkg/seaice pickups
55    o change MNC call locations and add coordinate attributes
56    o mask vorticity at the corner ; affects global_ocean.cs output
57    o fix ini_curvilinear_grid ; test CS experiments with mpi
58    o aim.5l_cs: modify sea-ice fraction input file ; update output
59    o exf: Adding simple range check routine for exf fields after read
60    
61    checkpoint52k_post
62    o removed top-level directory "diags"
63      - we migrated these functions to pkg/timeave a long time ago
64    o fixed bug introduced in pkg/monitor
65    o accuracy ctrlprec = 32 insuffient for gradient checks using
66      averaged fields (I/O via cost_averages)
67      -> use ctrl.h in active_file*.F to control I/O precision.
68    o paramter list of CALL ADTHE_MAIN_LOOP
69    o added initial do_the_model_io to ecco
70    o set all ...Freq to zero after cost_final
71      taveFreq, dumpFreq, pChkptFreq
72    o MAIN and ECCO differentiability restored
73    
74    checkpoint52j_post
75    o fix nchklev in tamc.h for global_ocean...
76    o Bringing flow and store directives up-to-date
77    o Really weird thing!
78      call do_the_model_io from the_main_loop with parameters
79      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
80      TAF places a faulty re-call of initialise_varia
81      after cost_final call which should not be there!
82    checkpoint52j_pre
83    
84    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
85      error messages
86    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
87    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
88      debug output
89    o modfied mdsio_writefield.F to handle non-global files under exch2
90    o update AIM Cubed-Sphere exp (aim.5l_cs):
91      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
92    o update AIM Equatorial Channel exp:
93      use standard aim_v23 pkg and change the SST fields to be more realistic.
94    o globalFile now works with exch2
95    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
96      mon_vort3.F to make exch2 friendly with >1 tile per cube face
97    o limit timeave output for hi-res integrations
98    
99    checkpoint52i_post
100    o removed CPP_EEOPTIONS.h from verification/*/code
101    o updated the tiling for global_ocean_pressure
102    checkpoint52i_pre
103    
104    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
105      the old pkg/aim).
106    
107    checkpoint52h_pre
108    o shortened offending lines in exch2_send_rx?.template
109    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
110    o genmake2: add build & execute test for NetCDF code
111    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
112      old grid files, moved CPP_EEMACROS.h to pkg/exch2
113    o added useSingleCPUIO flag to monitor.F and mon_out.F
114    o added temporary hack for sea-ice dynamics on the cube:
115      metric terms are ignored and it is assumed that
116      there is no sea-ice on cube faces 1, 2, 4, and 5.
117    
118    checkpoint52f_post
119    o added exch2 cube routines to pkg/exch2
120    o modified hs94.cs-32x32x5 to use it
121    o added new grid files to hs94.cs-32x32x5
122    checkpoint52f_pre
123    
124    checkpoint52e_post
125    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
126      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
127    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
128      to work with implicit vertical advection and AB ;
129    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
130    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
131     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
132    checkpoint52e_pre
133    
134    o fix bug in impldiff when Nr=1 or Nr=2.
135    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
136    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
137    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
138      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
139    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
140    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
141    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
142    
143    checkpoint52d_post
144    o re-tiled many expts to allow comparison in multi-processor mode
145      - updated output accordingly
146      - changed hs94.128x64x5 to use intial T from file rather than use the
147        random number generator
148    o add infrastructure in model routines for fizhi and gridalt packages
149    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
150    o changes to permit hi-res, cubed-sphere, configuration
151      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
152      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
153      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
154        of surface winds for the cube
155      (A verification experiment, based on global_ocean.cs32x15, but with
156       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
157       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
158       complete with example surface forcing files and matlab scripts to look
159       at the output and compare it with that of global_ocean.cs32x15.)
160    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
161       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
162       to conform to the common rule.
163    o check-in the first version of the coupler + interfaces for multi-components
164       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
165       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
166       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
167       - ocean and atmos. share the same horizontal grid (no interpolation).
168       - exchanges between component and coupler is done in forward_step
169    o new verification experiment, cpl_aim+ocn:
170       coupled ocean - AIM atmosphere on cs32 grid.
171    
172    checkpoint52d_pre
173    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
174    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
175    
176    checkpoint52c_post
177    o Fixing OPTIONS files for use of exf:
178      - ALLOW_ECCO not needed
179      - ECCO_CPPOPTIONS.h should not be included from
180        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
181        as has been the case in the past
182      - All cal/exf related options are currently set in
183        single header file. Should remain so until we
184        agree on a consistent new policy.
185    o Removed all CPP options for cal package.
186      cal has no more CPP options.
187    o modified STOREs in GAD_ADVECTION
188    o corrected key comp. for passkey
189    
190    checkpoint52b_post
191    o new version: "thsice" of thermodynamic sea-ice pkg:
192     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
193     - modify fluxes but do not change theta directly;
194     - light cleaning of bulk_force pkg (still needed with thsice).
195     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
196       + output_thsice.txt to test thsice & bulk_force pkgs.
197    o put back grid & coriolis monitor output.
198    checkpoint52b_pre
199    
200    o call "do_the_model_io" at the beginning (=> dump initial state)
201    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
202    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
203      (need info on NUMBER_OF_PTRACERS)
204    o missing PTRACERS headers in some routines
205    o default tamc.h in pkg/autodiff supposed to crash
206      to ensure proper customization
207    
208    checkpoint52a_post
209    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
210      - moved surfaceTendencyTice from pkg/seaice to main code
211      - subroutine FREEZE_SURFACE now limits only surface temperature
212        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
213        => new output.txt for global_ocean.cs32x15 & global_with_exf
214      - keep the old version of FREEZE for backward compatibility;
215        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
216      - corresponding modifs for TAF directives
217    o added surface flux output variables to TIMEAVE_STATVARS
218    o time-averaged output for pkg/ptracers
219    o fix problem with ECCO-related divided adjoint
220      snapshot file was missing some ad-variables,
221      but no warning issued by TAF
222    
223    checkpoint52a_pre
224    o some bug fixes for #undef REAL4_IS_SLOW
225    
226    checkpoint52 = ecco_c52_e35
227    o after testing adjoints of checkpoint51u_post
228    
229    checkpoint51u_post
230    o this is the post-merge tag of the ecco-branch
231      (needs another clean checkout and re-testing)
232    o various natl_box_adjoint configs and results
233      but no input fields
234    o obcs adjoint not yet merged!
235    o adding ECCO global 1x1 and 2x2 degree configs
236    o updated/extended some store directives for seaice
237    o pkg/ecco now containes ecco-specific part of cost function
238    o top level routines the_main_loop, forward_step
239      supersede those in model/src/
240      previous input data.cost now in data.ecco
241      (new namelist ecco_cost_nml)
242    o in ctrl/ cleaned some cross-dependencies and updated CPP options
243    
244    checkpoint51t_post
245    o this is the pre-merge tag of the ecco-branch
246    
247    checkpoint51s_post
248    o cleanup: removed various obsolete #define-s
249    o pkg/grdchk
250      - renamed 'ph-grd 3' to 'grad-res'
251      - merged from ecco-branch
252        (remaining bug fixes for obcs gradient checks)
253      - additional high-precision output for testreport
254        (grep for 'precision_grdchk_result')
255    
256    checkpoint51r_post
257    o cleaned up or removed CPP_OPTIONS.h files
258    o updated results for some of the tests to reflect the new
259      optfiles (-ieee: -O0 instead of -O3)
260    
261    checkpoint51q_post
262    o cd_code:
263      - moved cd_scheme.F -> cd_code_scheme.F
264      - separate read_checkpoint from cd_code_ini_vars.F
265      - separated cd_code part from write_checkpoint
266      - updated AD_SOURCE, generated .flow
267      - added CD_CODE_VARS.h to the_main_loop
268      - Moving cd_code specific store dir.s to pkg/cd_code
269    o ctrl package totally restructured
270      - pack/unpack now optional and decoupled from
271        xx_/adxx_ I/O
272      - ctrl_pack/unpack cleaned
273        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
274      - confined inclusion of AD_CONFIG.h to where necessary.
275    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
276    
277    checkpoint51p_post
278    o create initial cd_code package
279      - WARNING: the initialization of fields within packages
280        is broken because INI_FIELDS (where READ_CHECKPOINT is
281        called) is called *before* PACKAGES_INIT_VARIABLES.
282        This seems to be backwards since
283        1) its important to initially zero the entire field including
284           the "halo" region
285        2) zeroing needs to be done *before* reading pickup info
286           and the pickup call might or might not happen in any
287           particular run
288      - this needs an overhaul for R2
289    o cleanup verification/*/code/GMREDI_OPTIONS.h
290    o cleanup testreport
291    
292    checkpoint51o_post
293    o bringing AD-related verif's up to date with genmake2
294      - carbon/
295      - global_ocean.90x40x15/
296      - hs.94.1x64x5/
297      - (front_relax/ )
298    o (more) consistent directory structure for AD-related verif.'s
299    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
300    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
301    o bug fix in find_alpha.F for MDJWF:
302      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
303        change rho -> rho-rhoConst
304      - replace call find_rho to find_rhonum
305    o initialisation of rFlx extended to full array (required by TAF)
306      and shifted to thermodynamics
307    o removed PTRACERS.h in ptracers routine
308    o added surfacetendencyPtr to S/R parameter list pracers_forcing
309    o Correcting initialisations for fVerU, fVerV.
310    o helping TAF to recognize dependency on kUp for
311      fVerU, fVerV
312    o Replacing delZ by delR in pkg/ctrl/
313    checkpoint51o_pre
314    
315    o undid all of cp51 pending some cleanups and discussion
316    o added the [#include "AD_CONFIG.h"] statement to all files that need
317       it for adjoint/tl #defines
318     o re-worked the build logic in genmake2 to support AD_CONFIG.h
319     o removed tools/genmake since it no longer works
320    
321    checkpoint51n_post
322    o modifications to make FREEZE flux visible to pkg/kpp
323      - moved surfaceTendencyTice from pkg/seaice to main code
324      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
325      - subroutine FREEZE now limits only surface temperature
326        (this means new output.txt for global_ocean.90x40x15,
327         global_ocean.cs32x15, and global_with_exf)
328    o added surface flux output variables to TIMEAVE_STATVARS
329    
330    checkpoint51n_pre
331    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
332    o added [#include "AD_CONFIG.h"] to all files that use the following
333      defines:
334      - ALLOW_ADJOINT_RUN
335      - ALLOW_TANGENTLINEAR_RUN
336      - ALLOW_ECCO_OPTIMIZATION
337    
338    checkpoint51m_post
339    o incorporating changes to get TAMC/TAF working in genmake2
340      - added new TAMC/TAF targets to the Makefile
341      - various cleanups related to package handling
342      - these changes should have no impact on the forward model
343    
344    checkpoint51l_post
345    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
346     - faster algorithm for cal_addtime.F
347     - higher precision arithmetic, where needed
348     - pkg/exf *startdate variables changed from calendar date to
349       model integration time
350    
351    checkpoint51l_pre
352    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
353    o enable to apply restoring on S & T only in a latitude band.
354    o update output (external_forcing_surf modif. change truncation errors)
355       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
356    
357    checkpoint51k_post
358    o change default to: useNHMTerms=.FALSE.
359     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
360       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
361     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
362        exp1, ideal_2D_oce
363     - change data file of oceanic exp (leave the results unchanged for now)
364       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
365    o set gravitySign automatically according to the vertical coordinate used
366      (and change sign: back to "logical" value: +1 when R increases downward)
367    o added an include barrier to the default CPP_OPTIONS.h and
368      removed the #include "PACKAGES_CONFIG.h" from it
369    o fix a bug in mom_fluxform (from chk51j_post)
370    
371    checkpoint51j_post
372    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
373    o adjusted some flow directives (dynamics, thermodynamics)
374    o added cubed-sphere case to test cost function
375    o heckpoint_lev?_directives.h now include
376      pkg-specific directives, whenever those are enabled.
377    o Moving pkg-specific flow directives to corresponding pkg
378      Moving pkg-specific differentiation list to corresponding pkg
379      Moving pkg-specific checkpoint-lev storing to corresponding pkg
380      ---> conventions are
381           - pkg_ad.flow
382           - pkg_ad_diff.list
383           - pkg_ad_check_lev?_dir.h
384    
385    checkpoint51i_post
386    o merge of the branch-genmake2
387      - knowingly breaks the older genmake
388      - automatic generation of all ALLOW_${PKG_NAME} defines
389      - new testreport supersedes older testscript
390    o large number of package inclusion and header cleanups
391    checkpoint51i_pre
392    
393    o new output for adjoin of global ocean vector invariant
394    o fix for checkpoint of thermodynamic seaice and bulk_force
395    o Steph gchem various cleanups
396    
397    checkpoint 51h_pre
398    o fixed some single quotes
399    o modify gchem pkg to be more versatile
400    o modifications to clean up dic pkg
401    o add pkg/cfc
402    
403    checkpoint51g_post
404    o provide links for ARPACK and ADM*TLM
405    o start removing verification/vero/
406    o update AD-related stuff
407      (in particular some IF-statements in model/src/ routines)
408    o adding to verification/global_ocean.90x40x15/ adjoint of
409      vector invariant setup
410    
411    checkpoint51f_post
412    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
413    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
414      of tracer Green's fucntions for ocean inversion project.
415    
416    checkpoint51f_pre
417    o Added on-the-fly spatial interpolation capability
418        "USE_EXF_INTERPOLATION" to pkg/exf.
419      - This is a temporary Cartesian-grid hack until
420        the super-duper ESMF coupler becomes available.
421      - See verification/global_with_exf/README for usage example.
422      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
423        flags and modified pkg/seaice accordingly.
424    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
425        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
426        non-local transport term.
427    
428    checkpoint51e_post
429    o pkg/mom_vecinv:
430      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
431      - add time-ave diagnostic of vorticity advection.
432    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
433    o atmospheric geopotential: - include water vapor effect;
434                                - use p^kappa in p* scaling.
435    o land pkg: read initial state from files.
436    o AIM : add stratospheric drag in the upper level
437    
438    checkpoint51d_post
439    o change function ILNBLNK (=> last non-blank char.) to return zero
440      (instead of the string length) when the string. char is empty
441    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
442    o modif's to restore TAMC compatibility
443      - avoid "_d" constructs in PARAMETER declarations
444      - avoid interrupting lines by comment lines
445    o Use cluster local disks for purely local I/O
446      vs. globally visible disks needed for ctrl stuff
447      (merged from ecco-branch)
448      - new active_file_loc... and mdsio_..._loc routines
449      - affected packages: autodiff, ctrl, grdchk, mdsio
450    
451    checkpoint51c_post
452    o introducing integer flag debugLevel
453      - debLevZero: suppress all output
454      - debLevA: standard
455      - debLevB: equivalent to current debugMode=.TRUE.
456    o introducing pathname variable mdsioLocalDir for mdsio
457      that can be specified at runtime
458      (relevant for cluster I/O to local disk)
459    `
460    >>>checkpoint51b_post
461    adjoint of ptracers
462    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
463    o extended state in checkpoint_lev?, etc.
464    o alternative ctrl/cost with tr1 or ptracer
465    o new comlev1_bibj_ptracers
466    o new ptracers.flow
467    o made ptracers_forcing same as external_forcing_s
468    o added verification for adjoint with ptracers
469      - adm. grdchk fail so far
470      - tlm. grdchk OK
471      - checked tapelev/comlev recomputations: OK
472    <<<checkpoint51b_pre
473    
474    checkpoint51a_post
475    o added code for biogeochemistry package
476      - new pkgs: dic, gchem
477      - new subroutine in ptracers
478    o modify code for biogeo packages
479      - in model/src and pkg/ptracers
480    
481    checkpoint51
482    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
483      - autodiff, ctrl, exf, grdchk, seaice
484      kept separate packages
485      - cost, ecco, obcs
486    o updating verification/internal_wave, verification/lab_sea
487      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
488    
489    checkpoint50i_post
490    o Preparing next differentiable checkpoint and sync
491      of MAIN vs. ecco-branch
492      - 1st step: this one is differentiable
493      - 2nd step: next(! not this) checkpoint will have updated packages
494                  from ecco-branch)
495    
496    checkpoint50h_post
497    o new package "land": provide surface BC for AIM.
498    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
499    o AIM: use true log-P extrapolation for near surface temp (= as in
500        F.Molteni paper) ; update aim.5l_cs output.
501    o New variable in PARM03 for more flexible pickups
502    o somewhat cleaned package initialisation sequence for
503      ctrl/ cost/ ecco/ in packages_... routines
504    
505    checkpoint50g_post
506    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
507      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
508      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
509        made the default because of faster convergence than ADI
510    
511    checkpoint50f_post
512    o exf totally restructured
513      - replaced all exf_set_ routines by one generic exf_set_gen.F
514        and made sure it's still differentiable
515      - split exf_getffields.F into new exf_bulkformulae.F
516      - exf_inscal_/exf_outscal_ suffixes consistent with field names
517      - updated adjoint/makefile and relevant verif. accordingly
518    
519    checkpoint50f_pre
520     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
521          + change Evap over land. (update aim.5l_cs output)
522     o added missing .cvsignores and made uniform across expts
523     o changed configuration of tidal_basin_2d expt
524     o added pkg/debug functions for tracing code in fatal crashes
525     o tidied pkg/monitor to use MONITOR_OPTIONS.h
526     o new fn in pkg/monitor to stop model if solution grows too big
527     o removed lots of single quotes from comments
528    
529    checkpoint50e_post
530    o make KPP work with PTRACERS
531     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
532       nearly a copy of kpp_transport_s
533     - there is no analogue to SurfaceTendencyS, so I have to use
534       gPtr(of the surface layer) instead
535    o add a new platform SunFire+mpi (SunFire 15000) to genmake
536    checkpoint50e_pre
537    
538    checkpoint50d_post
539    o change kpp output from multiple-record state files to single-record state
540      files analogous to write_state.F
541    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
542      analogous to the cg2d-related output.
543    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
544      so that writing to internal file fn (with length 512) fails.
545    checkpoint50d_pre
546    
547    checkpoint50c_post
548    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
549    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
550    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
551    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
552    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
553    
554    checkpoint50c_pre
555    Merging from release1_p13:
556    o bug fix for pkg/seaice dynamic solver
557    o Added SEAICE_initialHEFF to pkg/seaice
558    
559    checkpoint50b_post
560    o store u*,v* in gU,V instead of in guNm1,gvNm1
561    o in order to put the momForcing out of the Adams-Bashforth:
562      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
563      to timestep.F
564    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
565    o re-generate output for highly sensitive test-exp:
566       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
567    
568    checkpoint50b_pre
569    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
570    o corrected CPP option mismatch in exf_Bulk... functions for case
571      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
572    
573    checkpoint50a_post
574    o Bug fix for merging between c50 and KPP.
575      ikey was passed from thermodynamics to kpp_calc via
576      common block rather than being recomputed in kpp_calc,
577      in contradiction with new key itdkey.
578      New key ikppkey created, and tamc.h headers updated.
579    
580    checkpoint50
581    - 2nd step of merge with ecco-branch:
582      merge changes in ecco-branch back into main trunk
583    - bug fix in find_alpha
584    - more storing in gmredi_calc_tensor.F, kpp_routines.F
585    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
586    - merged some sliced AD support routines
587    
588    checkpoint49
589    merged from ecco-branch:
590    o exf:
591      - Enable initialisation of forcing fields to constant
592        (runtime) values.
593      - in exf_getffields.F
594        Reduce i-/j-loop to interior domain, discarding overlaps.
595        That also fixes wrong TAF-key computations for key_1, key_2
596        with bulf formulae.
597      - exf_init.F modify #ifdef for exf_init_evap
598      - exf_getffieldrec.F, ctrl_getrec.F
599        The following INT-usages are not safe:
600          fldsecs  = int(fldsecs/fldperiod)*fldperiod
601          fldcount = int(fldsecs/fldperiod) + 1
602        and were modified.
603    o autodiff: checkpoint_lev...
604      - updated storing for bulk formulae (some arrays were missing)
605      - added state for seaice package
606      - synchronized with main branch
607    o DIVA:
608      Modif.s in
609      - the_main_loop.F
610      - the_model_main.F
611      and added cost_final_restore.F cost_final_store.F
612      o With these changes, it is possible to fully separate
613        the first forward run to compute the cost function (mdthe_main_loop)
614        and adjoint runs over individual DIVA intervals (adthe_main_loop)
615        into separate model executions.
616        This enables better tuning of DIVA to given queue sizes.
617      o Loss of cost function value in consecutive DIVA runs is
618        fixed by storing to 'costfinal' file.
619      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
620        beginning/end of adjoint integration is accounted for.
621      The current changes apply to TAF-1.4.26.
622      TAF has one remaining bug, requiring one manual change
623      (see MITgcm manual).
624    o cal: synchronized between MAIN and ecco-branch
625    
626    checkpoint48i_post
627    o Changes to restore differentiability of code w.r.t. previous tag
628      (mostly adding new routines to make list and replacing
629      pressure by totPhiHyd).
630    o Updated and merged grdchk package
631      - has both ADM and TLM checks
632      - works for single- and multi-proc.
633      - output cleaned
634      - worked successfully for parallel DIVA
635    o genmake:
636      - Adding -platform=SP4
637      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
638    o Modif. for DIVA:
639      ctrl_unpack should not be called in intermediate DIVA interval.
640      (similar thing would apply for active files such as
641      tbar, sbar, psbar, which should not be reinitialised;
642      only relevant for ecco-branch)
643    
644    checkpoint48h_post
645    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
646    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
647    o Added SEAICE_initialHEFF to pkg/seaice
648    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
649    
650    checkpoint48g_post
651    --- EOS:
652    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
653      store total Potential in totPhyHyd for diagnostics & EOS.
654    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
655    --- Pressure/geopotential gradient:
656    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
657    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
658      ( changes results of global_ocean_pressure )
659    o NLFS + z-coord.: add eta*Rho' contribution.
660    o accurate phiHyd when using interface-W at the middle between 2 centers
661     ( changes results of ideal_2D_oce )
662    o includes r* 2nd term in potential gradient.
663    
664    checkpoint48f_post
665    Merging from release1_p12:
666    o Modifications for using pkg/exf with pkg/seaice
667      - improved description of the various forcing configurations
668      - added basic radiation bulk formulae to pkg/exf
669      - units/sign fix for evap computation in exf_getffields.F
670      - updated verification/global_with_exf/results/output.txt
671    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
672      (SBO) core products, including oceanic mass, center-of-mass,
673      angular, and bottom pressure (see pkg/sbo/README.sbo).
674    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
675      to avoid negative values in shallow regions.
676      - updated verification/natl_box/results/output.txt
677      - updated verification/lab_sea/results/output.txt
678    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
679    o Added useSingleCpuIO option (see PARAMS.h).
680    o Updated useSingleCpuIO option in mdsio_writefield.F to
681      work with multi-field files, e.g., for single-file pickup.
682    o pkg/seaice:
683      - bug fix in growth.F: QNET for no shortwave case
684      - added HeffFile for specifying initial sea-ice thickness
685      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
686    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
687      kpp_transport_t.F, forward_step.F, and the_main_loop.F
688    o pkg/seaice:
689      - adjoint-friendly modifications
690      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
691    
692    checkpoint48e_post
693    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
694    o dynamics: change definition of computational domain & adapt mom_fluxform
695      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
696    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
697        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
698        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
699        global_ocean.90x40x15 global_with_exf global_ocean_pressure
700        inverted_barometer solid-body.cs-32x32x1
701      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
702    
703    checkpoint48d_post
704    o in preparation for r*:
705     a) use pre-computed gradient of hydrostatic potential:
706        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
707     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
708        => affects results of glob_oce_pressure (different truncation error)  
709      update output.txt of ideal_2D_oce & global_ocean_pressure
710    
711    checkpoint48d_pre
712    o in preparation for r*:
713      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
714      pass the 2 comp. of the grad. as arguments to momentum S/R.
715      but for the moment, only used if it does not change the results.
716    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
717    
718    checkpoint48c_post
719    Modifications in treatment of initial flux forcing controls
720    to avoid extra storing of flux fields.
721    
722    checkpoint48c_pre
723    o Added tidal_basin_2d experiment (currently 1D!)
724    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
725    
726    checkpoint48b_post
727    o r* coordinate added in #ifdef NONLIN_FRSURF block.
728     (modification to pressure gradient not yet implemented)
729    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
730      (for U & V) that are used for vertical advection of momentum.
731    
732    checkpoint48a_post
733    o In preparation for r*, use temp. array to compute vertical transport
734       in flux-form momentum pkg. => change results of few test-exp.
735      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
736                        lab_sea, natl_box & plume_on_slope
737    
738    checkpoint48
739    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
740    
741    checkpoint47j_post
742    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
743    o moved adexch from forward_step to addummy_in_stepping
744    o added exch in ctrl_map_...
745    o aveFreq.=0. at end of cost_final to avoid overwrite in
746      reverse checkpointing loop
747    o Yet more changes in gmredi:
748      * adgmredi_calc_tensor
749        avoiding all recomputation of gmredi_slope_limit
750      * adgmredi_x/y/rtransport
751        added flag for excessive storing to avoid recomp. of
752        u/v/rtans, dTdx/y/z
753        -> this is not really necessary and very memory-consuming
754      * adgmredi_slope_psi:
755        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
756      * gmredi_slope_limit
757        re-activated full calculation of taperfct for case 'ac02'
758    o updating verification/ adjoints of carbon, global_ocean.90x40x15
759    
760    checkpoint47i_post
761    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
762    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
763      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
764    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
765    o gmredi: fix few bugs.
766    
767    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
768    This will be a good checkpoint to plug into the ecco-branch.
769    o few modif.'s to get latest version adjointed
770      (mainly kick out code in ini_linear_phisurf)
771    o modif's to run adjoint with exactConserv
772    o case GM_BOLUS_ADVEC should be cleaned
773      S/R gmredi_slope_psi should be cleaned
774    o verification/carbon now has exactConserv=.TRUE.
775    
776    checkpoint47g_post
777    o time-average AIM output: becomes independent from statvars time-average
778      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
779    o After TAF bug fix:
780      Tested adjoint of gmredi package.
781      Tests were done with checkpoint47 rather than with latest
782      checkpoint47f_post since the latter is broken for the adjoint
783      verification/carbon/ contains both ADM and TLM gradient checks.
784    Here they are, before they get changed/lost/stolen.
785    Mostly modif.'s to fix numerical sensitivities.
786    Gradient checks OK for
787    - GM_taper_scheme:
788      * clipping
789      * ac02
790      * linear
791      * glw91
792      * dm95
793      * ldd97
794    - GMREDI_OPTIONS:
795      * GM_VISBECK_VARIABLE_K
796      * GM_NON_UNITY_DIAGONAL
797      * GM_EXTRA_DIAGONAL
798      * GM_BOLUS_ADVEC
799    in conjunction with data.gmredi parameters to be checked in
800    in a few minutes under verification/carbon/code/
801    
802    checkpoint47f_post
803    Merging from release1_p10:
804    o modifications for using pkg/exf with pkg/seaice
805      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
806        and SEAICE_EXTERNAL_FLUXES
807      - pkg/exf CPP options EXF_READ_EVAP and
808        EXF_NO_BULK_COMPUTATIONS
809      - usage examples are Experiments 8 and 9 in
810        verification/lab_sea/README
811      - verification/lab_sea default experiment now uses
812        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
813    
814    checkpoint47e_post
815    o created a tag prior to creating a branch
816    
817    checkpoint47d_post
818    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
819      at the bottom boundary had an erroneous half slip boundary condition
820    o added bottom drag and no slip boundary condition capabilities to
821      oceanic pressure coordinates code
822    o added new verification experiment global_ocean_pressure, this experiment is
823      also described in the tutorial section of the manual
824    checkpoint47d_pre
825    
826    checkpoint47c_post
827    o Added a verification experiment for a global cubed-sphere ocean run
828      -  verification/global_ocean.cubed32x32x30
829      -  uses pkg/therm_seaice and pkg/bulk_forcing
830    
831    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
832    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
833      when using P-coordinate; only implemented for atmospheric config.
834    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
835      NOTES: requires option NONLIN_FRSURF to be "#define".
836    o update advect_xz/results/output.txt (left from checkpoint44g_post)
837    
838    checkpoint47b_post
839    Merging from release1_p9:
840    o pkg/seaice
841      - removed GOTO's and added taf directives
842      - double precision constants to reduce the g77 (Linux)
843        to F77 (SGI) differences reported in release1_p8
844    o tools/genmake
845      - added SGI options
846    o verification/testscript
847      - updated to that of checkpoint47a_post
848    o verification/global_ocean.90x40x15/input/eedata
849      - modified for SGI f77 compatibility
850    o verification/lab_sea
851      - added description of sea-ice model
852      - added missing matlab routines
853      - added test of thermodynamics parallelization
854    
855    checkpoint47a_post
856    o new pkg: aim_v23
857     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
858       for now, keep the same surface forcing as before.
859     - Part-Cell implemented into AIM; check that Heat & Water are conserved
860     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
861     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
862    o add diagnostic of surface correction term in monitor output
863    
864    o bulk_force and therm_seaice
865    - Two packages:  bulk_force (Bulk forcing)
866      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
867    - Earlier integration from Stephaine Dutkiewicz
868      and Patrick Heimbach.
869    - Two ifdef statements for compile time,
870       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
871    
872    checkpoint47
873    differentiable version of checkpoint46n_post
874    o bug fix in quasihydrostaticterms
875    o * "clean" adjoint code (in terms of extensive recomputations)
876        can now be obtained for all GMREDI options (i.e. for
877        - GM_VISBECK_VARIABLE_K
878        - GM_NON_UNITY_DIAGONAL
879        - GM_EXTRA_DIAGONAL
880        - GM_BOLUS_ADVEC )
881      * However, wrong gradient check problem remains unsolved.
882      * New CPP options have been introduced for different
883        tapering schemes
884    o external_fields_load now part of differentiation list
885    o pressure needs multiple storing;
886      would be nice to have store_pressure at beginning or
887      end of forward_step, e.g. by having phiHyd global (5-dim.)
888      (NB: pressure is needed for certain cases in find_rho,
889      which is also invoked through convective_adjustment).
890    o recomputations in find_rho for cases
891     'JMD95'/'UNESCO' or 'MDJWF' are OK.
892    o #define ATMOSPHERIC_LOADING should be differentiable
893    o ini_forcing shifted to begining of initialise_varia
894    o Incorporating QNVS line search routines into MITgcm
895      (this is separate code, and therefore not under pkg)
896      lsopt/, optim/
897    o Updated verification/carbon/
898      - #define GM_VISBECK_VARIABLE_K
899      - GM_taper_scheme    = 'ldd97'    
900    
901    checkpoint46n_post
902    Merging from release1_p8:
903    o verification/natl_box:
904      updating new external_fields_load routine
905    o New package: pkg/seaice
906      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
907      The sea-ice code is based on Hibler (1979-1980).
908      Two sea-ice dynamic solvers, ADI and LSR, are included.
909      In addition to computing prognostic sea-ice variables and diagnosing
910      the forcing/external data fields that drive the ocean model,
911      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
912      The implied surface heat flux is then stored in variable
913      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
914      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
915      non-local transport term.  Because this call precedes model
916      thermodynamics, temperature under sea-ice may not be "exactly" at
917      the freezing point by the time theta is dumped or time-averaged.
918      N.B.: fairly large differences in accuracy occur across
919            different platforms/compilers; comparison between
920            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
921            generated output gives:
922       T           S           U           V
923      C D M    c        m  s        m  s        m  s        m  s
924      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
925      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
926      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
927    
928      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
929    o GAD:
930      - generated new common blocks to account for call of
931        same gad routines with differing traceridentities
932        (needed to modify tracerIdentity indices in GAD.h)
933      - generated separate common blocks for case useCubedSphereExchange
934        (Department of Futurology)
935      - parameter lists to gmredi_?transport: added tracerIdentity
936      - added new key indices to tamc.h
937    o external_fields_load:
938      - added this routine to TAF list
939      - needed to make some common blocks global and additional storing
940        along the same lines as exf package (checkpoint_lev?_directives.h)
941    o exf:
942      updated external forcing package
943      - bug fixes carried over from ecco-branch
944        (missing OBCS_OPTIONS.h in two routines)
945      - enable easy to use "no forcing".
946      - added exf I/O for atmospheric loading
947      - added exf I/O for runoff data
948      - transfered scaling between exf <-> MITgcm to exf namelist
949    o Adding new verification experiment global_with_exf.
950      This verification experiment is almost identical to the
951      global_ocean.90x40x15 experiment, except that it uses
952      the exf (and cal) package instead of the
953      external_fields_load routine (cf README file).
954    
955    checkpoint46m_post
956    o modified testscript to return -- when there are no lines of "%MON" output
957    o added new flag "quasiHydrostatic" for QH mode
958      and new routine quasihydrostaticterms()
959    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
960      New routine: mom_u_coriolis_nh()
961    o fixed sign of non-hydrostatic metric terms in u and v equations.
962      Depend on correct sign of gravitySign.
963    o added work.pc* to .cvsignore in aim directories using ifc
964    o introduced flag for controllin non-hydrostatic metric terms
965    o removed gravitySign from PARM04
966    o switched to g77/ifc from pgf77 in aim experiments
967    
968    checkpoint46l_post
969    o made convective adjustment work with pressure coordinates:
970     - changed the direction of k-loop in convective_adjustment.F for the
971       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
972     - adjusted the reference pressure k-index in convective_adjustment.F
973     - adjusted the convection condition in convect.F (in analogy to
974       calc_ivdc.F)
975     - convective_adjustment no longer computes anything on the halos
976     - removed the warnings about negative salinity from find_rho.F and
977       find_alpha.F; instead the new routine look_for_neg_salinity, called
978       at the beginning of find_rho, find_alpha, and find_beta, does a
979       check of the entire slice, if CPP-option
980       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
981    checkpoint46l_pre
982    
983    checkpoint46k_post
984    o fixed the verification/global_ocean.90x40x15 experiment:
985     - new bathymetry (the world according to A., JMC, and M.)
986     - new initial fields and forcing fields (*.bin files)
987     - new POLY3.COEFFS (for the next release one should switch to a full
988       equation of state: JMD95P or MDJWF)
989     - fixed several errors and redundancies in the data file
990     - experiment uses looped cells
991     - added matlab directory with diagnostic scripts for plotting of output
992    
993    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
994     - read AIM physics parameters from a file (data.aimphys)
995     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
996    
997    checkpoint46j_post
998    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
999    o move wVel computation at the end of the time step, in S/R integr_continuity
1000    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1001    o update timeave pkg for wVel diagnostic.
1002    checkpoint46j_pre
1003    
1004    checkpoint46i_post
1005    o Clean up AIM package (and keep the results unchanged):
1006      include CPP_OPTION and use IMPLICT NONE in all routines ;
1007      declare all the variables _RL ; use _d 0 for all numerical constants.
1008      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1009    
1010    checkpoint46h_post
1011    o cleaned up the use of rhoNil and rhoConst.
1012      - rhoNil should only appear in the LINEAR equation of state, everywhere
1013        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1014        and the dynamical equations are all divided by rhoConst
1015    o introduced new parameter rhoConstFresh, a reference density of fresh
1016      water, to remove the fresh water flux's dependence on rhoNil. The default
1017      value is 999.8 kg/m^3
1018    o cleanup up external_forcing.F and external_forcing_surf.F
1019      - can now be used by both OCEANIC and OCEANICP
1020    checkpoint46h_pre
1021    
1022     Added code to convert surface volume flux (fresh water) into
1023     a mass flux when using P coordinates in the ocean (OCEANICP).
1024     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1025    
1026    checkpoint46g_post
1027    o Include a new diagnostic variable phiHydLow for the ocean model
1028      - in z-coordinates, it is the bottom pressure anomaly
1029      - in p-coordinates, it is the sea surface elevation
1030      - in both cases, these variable have global drift, reflecting the mass
1031        drift in z-coordinates and the volume drift in p-coordinates
1032      - included time averaging for phiHydLow, be aware of the drift!
1033    o depth-dependent computation of Bo_surf for pressure coordinates
1034      in the ocean (buoyancyRelation='OCEANICP')
1035      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1036        Theta, Salinity, and Pressure in the parameter list. This routine is
1037        presently contained in find_rho.F. This routine does not give the
1038        correct density for 'POLY3', which would be a z-dependent reference
1039        density.
1040    o cleaned up find_rho
1041      - removed obsolete 'eqn' from the parameter list.
1042    o added two new verification experiments: gop and goz
1043      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1044    checkpoint46g_pre
1045    
1046    checkpoint46f_post
1047    o Enable tangent linear (forward mode) gradient checks:
1048      - extended active file handling to g_... files
1049      - added TANGENT_SIMULATION to theSimulationMode
1050      - extended grdchk package accordingly
1051    o added tangent linear setup in verification/carbon/code_ftl
1052    o added adjoint setup in verification/front_relax/code_ad
1053    
1054    checkpoint46e_post
1055    o Added new equation of state -> MDJWF
1056      - EOS of McDougall et al., 2002, JAOT, submitted
1057      - caveat: the equation of state is only valid for a smaller (more
1058        realistic?) range of values than JMD95P/Z and UNESCO
1059      - added masks to the calculation of pressure in store_pressure
1060      - added more check values for density in check_eos (ini_eos.F), some of
1061        the old check values are out of the range of the MDJWF-eos, so don't
1062        expect perfect matches for those
1063    checkpoint46e_pre
1064    
1065    checkpoint46d_post
1066    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1067      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1068      case of pressure coordinates. eosType='JMD95Z' in
1069      combination with buoyancyRelation='OCEANICP' now causes an error.
1070    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1071      in find_alpha/beta.
1072    checkpoint46d_pre
1073    
1074    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1075      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1076    
1077    checkpoint46c_post
1078    o Changes necessary for ocean in p-coordinates
1079     -  Added new buoyancy relation = 'OCEANICP'
1080     -  Added new parameters = gravitySign (this used to be contained inside
1081        the factor dRdZ which I added when we first switched to R coordinates).
1082     X GM/Redi is not compatible (yet)
1083     X bottom drag and no-slip need to be debugged.
1084    checkpoint46c_pre
1085    
1086    checkpoint46b_post
1087    o Added new equation of state -> JMD95Z and JMD95P
1088      - EOS of Jackett and McDougall, 1995, JAOT
1089      - moved all EOS parameters into EOS.h
1090      - new routines ini_eos.F, store_pressure.F
1091    o Added UNESCO EOS, but not recommended because it requires
1092      in-situ temperature (see JMD95)
1093    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1094      unesco.f to be used with POLY3
1095    checkpoint46b_pre
1096    
1097    checkpoint46a_post
1098    o Added (atmospheric) pressure loading
1099      - new field in FFIELDS.h, etc...
1100      - new cpp flag ATMOSPHERIC_LOADING
1101    o Changed hFacC to _hFacC in calc_phi_hyd.F
1102    o Added SHORTWAVE_HEATING to some files for consistency
1103    checkpoint46a_pre
1104    
1105    checkpoint46
1106    further merges from release1_p5
1107    o new ctrl package
1108      - adopted from ECCO environment to enable optimization
1109      - added Eliassen Palm fluxes to controls
1110    o added Eliassen Palm flux controls to gradient check package
1111    o cost package
1112      - Compatible with new ctrl package
1113      - added Eliassen Palm cost hooks
1114      - modif's of existing cost functions
1115    o Adjoint-related bug fixes in kpp:
1116      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1117      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1118    o autodiff package
1119      - flow directives:
1120        + new for S/R do_the_model_io
1121        + enhanced for S/R checkpoint
1122        + new gmredi.flow
1123      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1124        disable adcommon.h/g_common.h by default.
1125      - fixed problem for adjoint of global_max
1126    o modified verification/carbon/
1127    o New setup for adjoint of global_ocean
1128    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1129    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1130    o incorporated hooks for sponge layer code (external_forcing.F)
1131    
1132    checkpoint45d_post
1133    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1134    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1135      (affects plume_on_slope "cg2d" output)
1136    o add new parameter deltaTfreesurf for free-surface time stepping
1137    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1138    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1139    o change phiMin in exp1 (to agree with documentation)
1140    o add new flags:
1141     - T,S forcing inside/outside Adams-Bashforth
1142     - turn off temp,salt advection and/or forcing
1143     - for each tracer, define internal flag for multiDimAdvection & A-B
1144    o monitor: change definition of KE to check conservation of Energy
1145    
1146    checkpoint45c_post
1147    o Removed f90 comments ("!")
1148    o Modified initialisations to enable exf package for MITgcm
1149      (without invoking ECCO_PACKAGE).
1150    o modifications to gradient check package (Martin Losch)
1151      - enable centered differences
1152      - modified format of standard output
1153    
1154    checkpoint45b_post
1155    o cleaned exchange calls in cg2d
1156    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1157    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1158      to configure barotropic setup (Martin Losch)
1159    o moved some initialisations within bi,bj loop in dynamics
1160      (TAF flow dependency)
1161    o in initialise_varia, moved call packages_init_variables
1162      before convective_adjustment_init
1163      (corresponding adjustment of TAF tape initialisation).
1164    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1165    
1166    checkpoint45a_post
1167    o compute Rho over the whole domain (extend iMin,jMin indices)
1168    o specific exchange for X-slice domain (case Ny=1)
1169    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1170    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1171    
1172    checkpoint44h_post = checkpoint45
1173    o Fix to restore differentiability:
1174      place at which packages_init_variables is called in
1175      initialise_varia is crucial for reverse control flow.
1176    o modifications in GMRedi to enable stable adjoint
1177      (corresponding modif's in thermodynamics, dynamics)
1178    o added missing hook for sponge layer code in external_forcing
1179    o modified test cost functions
1180    o storing in gad_advection (plus removal of write(0,*)!
1181    o missing headers TR1.h added in convective_adjustment routines
1182    o errorMessageUnit set non-equal zero in eeboot
1183      (conflict on some platforms, e.g. IBM SP3)
1184    o modified carbon verif.
1185    
1186    checkpoint44h_pre
1187    o vertical grid option: allow to put the Interface at the middle between
1188      2 cell-centers ; replace delZ in pkg/kpp by drF.
1189    o GM Advective form: Tracers are advected using the residual transport (=
1190      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1191    
1192    checkpoint44g_post
1193    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1194      results) ; ifdef missing in thermodynamics.F
1195    
1196    checkpoint44f_pre,checkpoint44f_post
1197    o added PTRACERS package
1198      This allows an arbitrary number of passive tracers to be integrated
1199      forward simultaneously with the dynamicaly model.
1200      + Implemented so far:
1201        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1202        - I/O and checkpointing
1203        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1204      + Not implemented so far:
1205        - KPP
1206        - OBCS
1207      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1208        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1209        line in data.pkg.
1210      + This package is disabled by default since it increases storage.
1211    
1212    
1213    o testscript: added -cleanup option
1214    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1215                 b) enable to filter 2D fields.
1216    
1217    checkpoint44e_pre,post
1218    o re-wrote convective adjustment to use pre-calculated weights
1219      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1220      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1221      Original calls to convect() still in place.
1222    
1223    chkpt44d_pre,post
1224    o added missing EXCLUDE_MONITOR flags
1225    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1226      (incompatible typ in MIN/MAX expressions caused problems
1227      on IBM SP3)
1228    o in genmake added variable MAKEDEPEND
1229      plus resetting for case SunOS
1230    o added timer_stats.c routine for IBM SP3
1231    o removed variables in dynamics
1232    !!! I forgot to create tag chkpt44d_pre !!!
1233    !!! But chkpt44d_pre = chkpt44c_post    !!!
1234    
1235    o real fresh water flux implemented with non-linear free-surface.
1236    
1237    chkpt44c_pre,post
1238    o few fix (mask in shap_s2, EmPmR in external_field_load,
1239      USE_NATURAL_BCS in solve_for_P);
1240    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1241    
1242    checkpoint44b_pre/_post
1243    o merge of relevant stuff from the ecco-branch:
1244      - genmake: removed $S64 overwrite for case SunOS
1245      - pkg/exf: update and corrections for field swapping and obcs
1246      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1247                  harmonized between ECCO and MITgcm
1248      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1249                      updated checkpointing_lev... lists for obcs
1250      - model/src: minor changes in forward_step, plot_field
1251                   added directive for divided adjoint in the_main_loop
1252      - pkg/mdsio: added mdsio_gl_slice
1253    
1254    o check parameters & config (chkpt44a_pre,post)
1255    o OBC and NonLin_FrSurf.
1256    
1257    checkpoint44
1258    o fix bug in mom_vi_del2uv
1259    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1260    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1261    o update AIM experiments (NCEP input files)
1262    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1263    o added some stuff for AD
1264    
1265    checkpoint43
1266    o added two new advection tests
1267    o added global 4x4 degree ocean test
1268    o added test of H&S94 with free surface on cube
1269    o some final mods for gradient check, adjoint,...
1270    
1271    checkpoint42
1272      Fixed AD-related problems:
1273    o Store directives up-to-date with re-arranged Adams-Bashforth
1274      (mainly thermodynamics.F)
1275    o New store directives for multi-dim. advection schemes
1276      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1277      * new common block and key passkey
1278      (mainly gad_advection.F)
1279    o Modified store directives for split of dynamics/thermodynamics
1280      for the case ALLOW_KPP
1281    o Cleaned argument list for timestep_tracer.F
1282    
1283    checkpoint41
1284    o re-formatted/added comments in prologues of key subroutines
1285      to work with protex
1286    
1287    checkpoint40
1288    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1289    o added FLT (floats) package from Arne along with demo. experiment
1290    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1291      implementation of forward-in-time forcing terms
1292    o more mods for non-linear free-surface including new variable
1293    o modified multi-dim method to work on cube
1294    o bug fix in KPP (from DM)
1295    
1296    checkpoint40pre9
1297    o added DST advection schemes
1298    o fix MPI bug on SGI's
1299    o modifications for non-linear free-surface
1300    o fixed conditionals for fixed flow/passive tracer only mode
1301    o added tension/strain form of stress tensor
1302    o changes to commenting of arguments for TAF/TAMC
1303    o added/updated many matlab scripts
1304    o added multi-dimensional advection method for tracers
1305      
1306    checkpoint40pre8
1307    o new package rw/
1308      Added method for dumping intermediate local arrays:
1309      mdsio_writetile - same as mdsio_writefield except works from inside
1310                        bi,bj loop
1311      mdsio_writelocal - same as mdsio_writetile except works for local
1312                         arrays
1313      write_local_r? - higher-level wrapper for mdsio_writelocal
1314      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1315      Example given at end of mom_vecinv.F that dumps some local arrays.
1316    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1317      control flux-form versus vector invariant code.
1318      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1319      or genmake -DISABLE ...
1320    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1321      (additional storing is now needed for case vecinv;
1322      currently nothing implemented to switch this storing off
1323      in case fluxform is used since no CPP flag available).
1324    
1325    checkpoint40pre7
1326    o bug fix in dynamics.F
1327      calc_viscosity called before k=1,Nr loop.
1328    o added some #ifdef's ALLOW_PASSIVE_TRACER
1329    o cleaned initialisations in ctrl_map_ini
1330      related to TAF
1331    
1332    checkpoint40pre6
1333    o split dynamics into thermodynamics & dynamics
1334    o corresponding split of calc_diffusivity into
1335      calc_diffusivity, calc_viscosity
1336      (kpp_calc_diff, kpp_calc_visc).
1337    o Added diffkr, kapgm to control variables
1338    o bug fix in gmredi_slope_limit for ldd97
1339    
1340    checkpoint40pre5
1341    o proper initialization of Adams-Bashforth time stepping
1342      + uses forward step for very first step of model (iter=0)
1343    o re-generated *all* output since almost all output is modified by this
1344      change (sorry but we've been putting this one off for about 2 years)
1345      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1346        *not* regenerated since they are already out of date and I don't
1347        want to create the impression that they are suddenly working.
1348    o removed KAP stuff for DEC's
1349    o modified/added many .cvsignore files in */code and */input
1350    o added new expt "solid-body.cs-32x32x1"
1351      + this uses an alternative form of ini_curvilinear_grid.F which
1352        is not necessarily any better than the current one...
1353    
1354    checkpoint40pre4
1355    o added re-initialisations of utrans,vtrans,rtrans in
1356      calc_common_factors which are crucial for TAF.
1357    o extended iMin,jMin range for calc_common_factors,
1358      calc_diffusivity
1359    o added option ALLOW_PASSIVE_TRACER
1360    o a few minor updates and fixes
1361    
1362    checkpoint40pre3
1363    o created calc_gtr1.F for gad package
1364    o split the_main_loop and re-introduced forward_step
1365    o some recomputations of nIter0 for TAMC
1366    
1367  checkpoint40pre2  checkpoint40pre2
1368  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
1369  o Added gradient check package  o Added gradient check package

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