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revision 1.55 by heimbach, Fri Jan 18 22:13:27 2002 UTC revision 1.273 by edhill, Mon Apr 5 06:05:07 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 monitor package can write to NetCDF files and/or STDOUT
7    o fix re-definition bug in MNC_GRID_INIT_ALL()
8    o doc/api_reference added
9      - a framework for building an API Reference Manual using all
10        the "protex" comments embedded in the code
11      - see pkg/generic_advdiff, pkg/mnc for examples
12    o MNC:
13      - make myThid the last argument for all subroutines
14      - new default for the grid files: NO halos
15      - add useMNC and other run-time flags
16      - separate per-file-group handling of the unlimited dimension
17      - early initialization of MNC w/ flags read at the eeboot stage
18        and lookup tables set in initialize_fixed
19      - write all MNC output to a freshly-created directory
20    o thermodynamics sea-ice (thsice) is now tested with testreport.
21    o test exp. advect_cs: use the standard cs32 grid ; update output.
22    o Added functionality to grdchk:
23      pick global i,j,k position (or nearest wet) where to perform check.
24    
25    checkpoint52l_post
26    o new land formulation:
27      a) use ground enthalpy as prognostic variable to ensure exact
28         energy conservation.
29      b) account for water temperature and for latent heat of freezing
30         in all processes (rain, run-off, ground storage)
31      c) compute surface and ground temperature implicitly.
32    o aim_v23 modification for new land model:
33      a) Treat separately land / ocean / sea-ice surface fluxes
34         to allow implicit computation of land & sea-ice surface temp.
35      b) add snow precipitation.
36    checkpoint52l_pre
37    
38    o fix problem (when 1 tile is empty) in min/max monitor.
39    o fix bug in timeAve (u,vZetatave in common block)
40    o no restoring terms under ice for pkg/seaice
41    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
42    o bug fix for pkg/seaice pickups
43    o change MNC call locations and add coordinate attributes
44    o mask vorticity at the corner ; affects global_ocean.cs output
45    o fix ini_curvilinear_grid ; test CS experiments with mpi
46    o aim.5l_cs: modify sea-ice fraction input file ; update output
47    o exf: Adding simple range check routine for exf fields after read
48    
49    checkpoint52k_post
50    o removed top-level directory "diags"
51      - we migrated these functions to pkg/timeave a long time ago
52    o fixed bug introduced in pkg/monitor
53    o accuracy ctrlprec = 32 insuffient for gradient checks using
54      averaged fields (I/O via cost_averages)
55      -> use ctrl.h in active_file*.F to control I/O precision.
56    o paramter list of CALL ADTHE_MAIN_LOOP
57    o added initial do_the_model_io to ecco
58    o set all ...Freq to zero after cost_final
59      taveFreq, dumpFreq, pChkptFreq
60    o MAIN and ECCO differentiability restored
61    
62    checkpoint52j_post
63    o fix nchklev in tamc.h for global_ocean...
64    o Bringing flow and store directives up-to-date
65    o Really weird thing!
66      call do_the_model_io from the_main_loop with parameters
67      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
68      TAF places a faulty re-call of initialise_varia
69      after cost_final call which should not be there!
70    checkpoint52j_pre
71    
72    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
73      error messages
74    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
75    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
76      debug output
77    o modfied mdsio_writefield.F to handle non-global files under exch2
78    o update AIM Cubed-Sphere exp (aim.5l_cs):
79      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
80    o update AIM Equatorial Channel exp:
81      use standard aim_v23 pkg and change the SST fields to be more realistic.
82    o globalFile now works with exch2
83    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
84      mon_vort3.F to make exch2 friendly with >1 tile per cube face
85    o limit timeave output for hi-res integrations
86    
87    checkpoint52i_post
88    o removed CPP_EEOPTIONS.h from verification/*/code
89    o updated the tiling for global_ocean_pressure
90    checkpoint52i_pre
91    
92    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
93      the old pkg/aim).
94    
95    checkpoint52h_pre
96    o shortened offending lines in exch2_send_rx?.template
97    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
98    o genmake2: add build & execute test for NetCDF code
99    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
100      old grid files, moved CPP_EEMACROS.h to pkg/exch2
101    o added useSingleCPUIO flag to monitor.F and mon_out.F
102    o added temporary hack for sea-ice dynamics on the cube:
103      metric terms are ignored and it is assumed that
104      there is no sea-ice on cube faces 1, 2, 4, and 5.
105    
106    checkpoint52f_post
107    o added exch2 cube routines to pkg/exch2
108    o modified hs94.cs-32x32x5 to use it
109    o added new grid files to hs94.cs-32x32x5
110    checkpoint52f_pre
111    
112    checkpoint52e_post
113    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
114      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
115    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
116      to work with implicit vertical advection and AB ;
117    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
118    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
119     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
120    checkpoint52e_pre
121    
122    o fix bug in impldiff when Nr=1 or Nr=2.
123    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
124    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
125    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
126      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
127    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
128    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
129    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
130    
131    checkpoint52d_post
132    o re-tiled many expts to allow comparison in multi-processor mode
133      - updated output accordingly
134      - changed hs94.128x64x5 to use intial T from file rather than use the
135        random number generator
136    o add infrastructure in model routines for fizhi and gridalt packages
137    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
138    o changes to permit hi-res, cubed-sphere, configuration
139      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
140      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
141      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
142        of surface winds for the cube
143      (A verification experiment, based on global_ocean.cs32x15, but with
144       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
145       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
146       complete with example surface forcing files and matlab scripts to look
147       at the output and compare it with that of global_ocean.cs32x15.)
148    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
149       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
150       to conform to the common rule.
151    o check-in the first version of the coupler + interfaces for multi-components
152       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
153       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
154       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
155       - ocean and atmos. share the same horizontal grid (no interpolation).
156       - exchanges between component and coupler is done in forward_step
157    o new verification experiment, cpl_aim+ocn:
158       coupled ocean - AIM atmosphere on cs32 grid.
159    
160    checkpoint52d_pre
161    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
162    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
163    
164    checkpoint52c_post
165    o Fixing OPTIONS files for use of exf:
166      - ALLOW_ECCO not needed
167      - ECCO_CPPOPTIONS.h should not be included from
168        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
169        as has been the case in the past
170      - All cal/exf related options are currently set in
171        single header file. Should remain so until we
172        agree on a consistent new policy.
173    o Removed all CPP options for cal package.
174      cal has no more CPP options.
175    o modified STOREs in GAD_ADVECTION
176    o corrected key comp. for passkey
177    
178    checkpoint52b_post
179    o new version: "thsice" of thermodynamic sea-ice pkg:
180     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
181     - modify fluxes but do not change theta directly;
182     - light cleaning of bulk_force pkg (still needed with thsice).
183     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
184       + output_thsice.txt to test thsice & bulk_force pkgs.
185    o put back grid & coriolis monitor output.
186    checkpoint52b_pre
187    
188    o call "do_the_model_io" at the beginning (=> dump initial state)
189    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
190    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
191      (need info on NUMBER_OF_PTRACERS)
192    o missing PTRACERS headers in some routines
193    o default tamc.h in pkg/autodiff supposed to crash
194      to ensure proper customization
195    
196    checkpoint52a_post
197    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
198      - moved surfaceTendencyTice from pkg/seaice to main code
199      - subroutine FREEZE_SURFACE now limits only surface temperature
200        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
201        => new output.txt for global_ocean.cs32x15 & global_with_exf
202      - keep the old version of FREEZE for backward compatibility;
203        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
204      - corresponding modifs for TAF directives
205    o added surface flux output variables to TIMEAVE_STATVARS
206    o time-averaged output for pkg/ptracers
207    o fix problem with ECCO-related divided adjoint
208      snapshot file was missing some ad-variables,
209      but no warning issued by TAF
210    
211    checkpoint52a_pre
212    o some bug fixes for #undef REAL4_IS_SLOW
213    
214    checkpoint52 = ecco_c52_e35
215    o after testing adjoints of checkpoint51u_post
216    
217    checkpoint51u_post
218    o this is the post-merge tag of the ecco-branch
219      (needs another clean checkout and re-testing)
220    o various natl_box_adjoint configs and results
221      but no input fields
222    o obcs adjoint not yet merged!
223    o adding ECCO global 1x1 and 2x2 degree configs
224    o updated/extended some store directives for seaice
225    o pkg/ecco now containes ecco-specific part of cost function
226    o top level routines the_main_loop, forward_step
227      supersede those in model/src/
228      previous input data.cost now in data.ecco
229      (new namelist ecco_cost_nml)
230    o in ctrl/ cleaned some cross-dependencies and updated CPP options
231    
232    checkpoint51t_post
233    o this is the pre-merge tag of the ecco-branch
234    
235    checkpoint51s_post
236    o cleanup: removed various obsolete #define-s
237    o pkg/grdchk
238      - renamed 'ph-grd 3' to 'grad-res'
239      - merged from ecco-branch
240        (remaining bug fixes for obcs gradient checks)
241      - additional high-precision output for testreport
242        (grep for 'precision_grdchk_result')
243    
244    checkpoint51r_post
245    o cleaned up or removed CPP_OPTIONS.h files
246    o updated results for some of the tests to reflect the new
247      optfiles (-ieee: -O0 instead of -O3)
248    
249    checkpoint51q_post
250    o cd_code:
251      - moved cd_scheme.F -> cd_code_scheme.F
252      - separate read_checkpoint from cd_code_ini_vars.F
253      - separated cd_code part from write_checkpoint
254      - updated AD_SOURCE, generated .flow
255      - added CD_CODE_VARS.h to the_main_loop
256      - Moving cd_code specific store dir.s to pkg/cd_code
257    o ctrl package totally restructured
258      - pack/unpack now optional and decoupled from
259        xx_/adxx_ I/O
260      - ctrl_pack/unpack cleaned
261        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
262      - confined inclusion of AD_CONFIG.h to where necessary.
263    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
264    
265    checkpoint51p_post
266    o create initial cd_code package
267      - WARNING: the initialization of fields within packages
268        is broken because INI_FIELDS (where READ_CHECKPOINT is
269        called) is called *before* PACKAGES_INIT_VARIABLES.
270        This seems to be backwards since
271        1) its important to initially zero the entire field including
272           the "halo" region
273        2) zeroing needs to be done *before* reading pickup info
274           and the pickup call might or might not happen in any
275           particular run
276      - this needs an overhaul for R2
277    o cleanup verification/*/code/GMREDI_OPTIONS.h
278    o cleanup testreport
279    
280    checkpoint51o_post
281    o bringing AD-related verif's up to date with genmake2
282      - carbon/
283      - global_ocean.90x40x15/
284      - hs.94.1x64x5/
285      - (front_relax/ )
286    o (more) consistent directory structure for AD-related verif.'s
287    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
288    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
289    o bug fix in find_alpha.F for MDJWF:
290      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
291        change rho -> rho-rhoConst
292      - replace call find_rho to find_rhonum
293    o initialisation of rFlx extended to full array (required by TAF)
294      and shifted to thermodynamics
295    o removed PTRACERS.h in ptracers routine
296    o added surfacetendencyPtr to S/R parameter list pracers_forcing
297    o Correcting initialisations for fVerU, fVerV.
298    o helping TAF to recognize dependency on kUp for
299      fVerU, fVerV
300    o Replacing delZ by delR in pkg/ctrl/
301    checkpoint51o_pre
302    
303    o undid all of cp51 pending some cleanups and discussion
304    o added the [#include "AD_CONFIG.h"] statement to all files that need
305       it for adjoint/tl #defines
306     o re-worked the build logic in genmake2 to support AD_CONFIG.h
307     o removed tools/genmake since it no longer works
308    
309    checkpoint51n_post
310    o modifications to make FREEZE flux visible to pkg/kpp
311      - moved surfaceTendencyTice from pkg/seaice to main code
312      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
313      - subroutine FREEZE now limits only surface temperature
314        (this means new output.txt for global_ocean.90x40x15,
315         global_ocean.cs32x15, and global_with_exf)
316    o added surface flux output variables to TIMEAVE_STATVARS
317    
318    checkpoint51n_pre
319    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
320    o added [#include "AD_CONFIG.h"] to all files that use the following
321      defines:
322      - ALLOW_ADJOINT_RUN
323      - ALLOW_TANGENTLINEAR_RUN
324      - ALLOW_ECCO_OPTIMIZATION
325    
326    checkpoint51m_post
327    o incorporating changes to get TAMC/TAF working in genmake2
328      - added new TAMC/TAF targets to the Makefile
329      - various cleanups related to package handling
330      - these changes should have no impact on the forward model
331    
332    checkpoint51l_post
333    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
334     - faster algorithm for cal_addtime.F
335     - higher precision arithmetic, where needed
336     - pkg/exf *startdate variables changed from calendar date to
337       model integration time
338    
339    checkpoint51l_pre
340    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
341    o enable to apply restoring on S & T only in a latitude band.
342    o update output (external_forcing_surf modif. change truncation errors)
343       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
344    
345    checkpoint51k_post
346    o change default to: useNHMTerms=.FALSE.
347     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
348       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
349     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
350        exp1, ideal_2D_oce
351     - change data file of oceanic exp (leave the results unchanged for now)
352       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
353    o set gravitySign automatically according to the vertical coordinate used
354      (and change sign: back to "logical" value: +1 when R increases downward)
355    o added an include barrier to the default CPP_OPTIONS.h and
356      removed the #include "PACKAGES_CONFIG.h" from it
357    o fix a bug in mom_fluxform (from chk51j_post)
358    
359    checkpoint51j_post
360    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
361    o adjusted some flow directives (dynamics, thermodynamics)
362    o added cubed-sphere case to test cost function
363    o heckpoint_lev?_directives.h now include
364      pkg-specific directives, whenever those are enabled.
365    o Moving pkg-specific flow directives to corresponding pkg
366      Moving pkg-specific differentiation list to corresponding pkg
367      Moving pkg-specific checkpoint-lev storing to corresponding pkg
368      ---> conventions are
369           - pkg_ad.flow
370           - pkg_ad_diff.list
371           - pkg_ad_check_lev?_dir.h
372    
373    checkpoint51i_post
374    o merge of the branch-genmake2
375      - knowingly breaks the older genmake
376      - automatic generation of all ALLOW_${PKG_NAME} defines
377      - new testreport supersedes older testscript
378    o large number of package inclusion and header cleanups
379    checkpoint51i_pre
380    
381    o new output for adjoin of global ocean vector invariant
382    o fix for checkpoint of thermodynamic seaice and bulk_force
383    o Steph gchem various cleanups
384    
385    checkpoint 51h_pre
386    o fixed some single quotes
387    o modify gchem pkg to be more versatile
388    o modifications to clean up dic pkg
389    o add pkg/cfc
390    
391    checkpoint51g_post
392    o provide links for ARPACK and ADM*TLM
393    o start removing verification/vero/
394    o update AD-related stuff
395      (in particular some IF-statements in model/src/ routines)
396    o adding to verification/global_ocean.90x40x15/ adjoint of
397      vector invariant setup
398    
399    checkpoint51f_post
400    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
401    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
402      of tracer Green's fucntions for ocean inversion project.
403    
404    checkpoint51f_pre
405    o Added on-the-fly spatial interpolation capability
406        "USE_EXF_INTERPOLATION" to pkg/exf.
407      - This is a temporary Cartesian-grid hack until
408        the super-duper ESMF coupler becomes available.
409      - See verification/global_with_exf/README for usage example.
410      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
411        flags and modified pkg/seaice accordingly.
412    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
413        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
414        non-local transport term.
415    
416    checkpoint51e_post
417    o pkg/mom_vecinv:
418      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
419      - add time-ave diagnostic of vorticity advection.
420    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
421    o atmospheric geopotential: - include water vapor effect;
422                                - use p^kappa in p* scaling.
423    o land pkg: read initial state from files.
424    o AIM : add stratospheric drag in the upper level
425    
426    checkpoint51d_post
427    o change function ILNBLNK (=> last non-blank char.) to return zero
428      (instead of the string length) when the string. char is empty
429    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
430    o modif's to restore TAMC compatibility
431      - avoid "_d" constructs in PARAMETER declarations
432      - avoid interrupting lines by comment lines
433    o Use cluster local disks for purely local I/O
434      vs. globally visible disks needed for ctrl stuff
435      (merged from ecco-branch)
436      - new active_file_loc... and mdsio_..._loc routines
437      - affected packages: autodiff, ctrl, grdchk, mdsio
438    
439    checkpoint51c_post
440    o introducing integer flag debugLevel
441      - debLevZero: suppress all output
442      - debLevA: standard
443      - debLevB: equivalent to current debugMode=.TRUE.
444    o introducing pathname variable mdsioLocalDir for mdsio
445      that can be specified at runtime
446      (relevant for cluster I/O to local disk)
447    `
448    >>>checkpoint51b_post
449    adjoint of ptracers
450    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
451    o extended state in checkpoint_lev?, etc.
452    o alternative ctrl/cost with tr1 or ptracer
453    o new comlev1_bibj_ptracers
454    o new ptracers.flow
455    o made ptracers_forcing same as external_forcing_s
456    o added verification for adjoint with ptracers
457      - adm. grdchk fail so far
458      - tlm. grdchk OK
459      - checked tapelev/comlev recomputations: OK
460    <<<checkpoint51b_pre
461    
462    checkpoint51a_post
463    o added code for biogeochemistry package
464      - new pkgs: dic, gchem
465      - new subroutine in ptracers
466    o modify code for biogeo packages
467      - in model/src and pkg/ptracers
468    
469    checkpoint51
470    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
471      - autodiff, ctrl, exf, grdchk, seaice
472      kept separate packages
473      - cost, ecco, obcs
474    o updating verification/internal_wave, verification/lab_sea
475      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
476    
477    checkpoint50i_post
478    o Preparing next differentiable checkpoint and sync
479      of MAIN vs. ecco-branch
480      - 1st step: this one is differentiable
481      - 2nd step: next(! not this) checkpoint will have updated packages
482                  from ecco-branch)
483    
484    checkpoint50h_post
485    o new package "land": provide surface BC for AIM.
486    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
487    o AIM: use true log-P extrapolation for near surface temp (= as in
488        F.Molteni paper) ; update aim.5l_cs output.
489    o New variable in PARM03 for more flexible pickups
490    o somewhat cleaned package initialisation sequence for
491      ctrl/ cost/ ecco/ in packages_... routines
492    
493    checkpoint50g_post
494    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
495      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
496      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
497        made the default because of faster convergence than ADI
498    
499    checkpoint50f_post
500    o exf totally restructured
501      - replaced all exf_set_ routines by one generic exf_set_gen.F
502        and made sure it's still differentiable
503      - split exf_getffields.F into new exf_bulkformulae.F
504      - exf_inscal_/exf_outscal_ suffixes consistent with field names
505      - updated adjoint/makefile and relevant verif. accordingly
506    
507    checkpoint50f_pre
508     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
509          + change Evap over land. (update aim.5l_cs output)
510     o added missing .cvsignores and made uniform across expts
511     o changed configuration of tidal_basin_2d expt
512     o added pkg/debug functions for tracing code in fatal crashes
513     o tidied pkg/monitor to use MONITOR_OPTIONS.h
514     o new fn in pkg/monitor to stop model if solution grows too big
515     o removed lots of single quotes from comments
516    
517    checkpoint50e_post
518    o make KPP work with PTRACERS
519     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
520       nearly a copy of kpp_transport_s
521     - there is no analogue to SurfaceTendencyS, so I have to use
522       gPtr(of the surface layer) instead
523    o add a new platform SunFire+mpi (SunFire 15000) to genmake
524    checkpoint50e_pre
525    
526    checkpoint50d_post
527    o change kpp output from multiple-record state files to single-record state
528      files analogous to write_state.F
529    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
530      analogous to the cg2d-related output.
531    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
532      so that writing to internal file fn (with length 512) fails.
533    checkpoint50d_pre
534    
535    checkpoint50c_post
536    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
537    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
538    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
539    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
540    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
541    
542    checkpoint50c_pre
543    Merging from release1_p13:
544    o bug fix for pkg/seaice dynamic solver
545    o Added SEAICE_initialHEFF to pkg/seaice
546    
547    checkpoint50b_post
548    o store u*,v* in gU,V instead of in guNm1,gvNm1
549    o in order to put the momForcing out of the Adams-Bashforth:
550      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
551      to timestep.F
552    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
553    o re-generate output for highly sensitive test-exp:
554       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
555    
556    checkpoint50b_pre
557    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
558    o corrected CPP option mismatch in exf_Bulk... functions for case
559      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
560    
561    checkpoint50a_post
562    o Bug fix for merging between c50 and KPP.
563      ikey was passed from thermodynamics to kpp_calc via
564      common block rather than being recomputed in kpp_calc,
565      in contradiction with new key itdkey.
566      New key ikppkey created, and tamc.h headers updated.
567    
568    checkpoint50
569    - 2nd step of merge with ecco-branch:
570      merge changes in ecco-branch back into main trunk
571    - bug fix in find_alpha
572    - more storing in gmredi_calc_tensor.F, kpp_routines.F
573    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
574    - merged some sliced AD support routines
575    
576    checkpoint49
577    merged from ecco-branch:
578    o exf:
579      - Enable initialisation of forcing fields to constant
580        (runtime) values.
581      - in exf_getffields.F
582        Reduce i-/j-loop to interior domain, discarding overlaps.
583        That also fixes wrong TAF-key computations for key_1, key_2
584        with bulf formulae.
585      - exf_init.F modify #ifdef for exf_init_evap
586      - exf_getffieldrec.F, ctrl_getrec.F
587        The following INT-usages are not safe:
588          fldsecs  = int(fldsecs/fldperiod)*fldperiod
589          fldcount = int(fldsecs/fldperiod) + 1
590        and were modified.
591    o autodiff: checkpoint_lev...
592      - updated storing for bulk formulae (some arrays were missing)
593      - added state for seaice package
594      - synchronized with main branch
595    o DIVA:
596      Modif.s in
597      - the_main_loop.F
598      - the_model_main.F
599      and added cost_final_restore.F cost_final_store.F
600      o With these changes, it is possible to fully separate
601        the first forward run to compute the cost function (mdthe_main_loop)
602        and adjoint runs over individual DIVA intervals (adthe_main_loop)
603        into separate model executions.
604        This enables better tuning of DIVA to given queue sizes.
605      o Loss of cost function value in consecutive DIVA runs is
606        fixed by storing to 'costfinal' file.
607      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
608        beginning/end of adjoint integration is accounted for.
609      The current changes apply to TAF-1.4.26.
610      TAF has one remaining bug, requiring one manual change
611      (see MITgcm manual).
612    o cal: synchronized between MAIN and ecco-branch
613    
614    checkpoint48i_post
615    o Changes to restore differentiability of code w.r.t. previous tag
616      (mostly adding new routines to make list and replacing
617      pressure by totPhiHyd).
618    o Updated and merged grdchk package
619      - has both ADM and TLM checks
620      - works for single- and multi-proc.
621      - output cleaned
622      - worked successfully for parallel DIVA
623    o genmake:
624      - Adding -platform=SP4
625      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
626    o Modif. for DIVA:
627      ctrl_unpack should not be called in intermediate DIVA interval.
628      (similar thing would apply for active files such as
629      tbar, sbar, psbar, which should not be reinitialised;
630      only relevant for ecco-branch)
631    
632    checkpoint48h_post
633    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
634    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
635    o Added SEAICE_initialHEFF to pkg/seaice
636    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
637    
638    checkpoint48g_post
639    --- EOS:
640    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
641      store total Potential in totPhyHyd for diagnostics & EOS.
642    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
643    --- Pressure/geopotential gradient:
644    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
645    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
646      ( changes results of global_ocean_pressure )
647    o NLFS + z-coord.: add eta*Rho' contribution.
648    o accurate phiHyd when using interface-W at the middle between 2 centers
649     ( changes results of ideal_2D_oce )
650    o includes r* 2nd term in potential gradient.
651    
652    checkpoint48f_post
653    Merging from release1_p12:
654    o Modifications for using pkg/exf with pkg/seaice
655      - improved description of the various forcing configurations
656      - added basic radiation bulk formulae to pkg/exf
657      - units/sign fix for evap computation in exf_getffields.F
658      - updated verification/global_with_exf/results/output.txt
659    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
660      (SBO) core products, including oceanic mass, center-of-mass,
661      angular, and bottom pressure (see pkg/sbo/README.sbo).
662    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
663      to avoid negative values in shallow regions.
664      - updated verification/natl_box/results/output.txt
665      - updated verification/lab_sea/results/output.txt
666    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
667    o Added useSingleCpuIO option (see PARAMS.h).
668    o Updated useSingleCpuIO option in mdsio_writefield.F to
669      work with multi-field files, e.g., for single-file pickup.
670    o pkg/seaice:
671      - bug fix in growth.F: QNET for no shortwave case
672      - added HeffFile for specifying initial sea-ice thickness
673      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
674    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
675      kpp_transport_t.F, forward_step.F, and the_main_loop.F
676    o pkg/seaice:
677      - adjoint-friendly modifications
678      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
679    
680    checkpoint48e_post
681    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
682    o dynamics: change definition of computational domain & adapt mom_fluxform
683      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
684    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
685        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
686        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
687        global_ocean.90x40x15 global_with_exf global_ocean_pressure
688        inverted_barometer solid-body.cs-32x32x1
689      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
690    
691    checkpoint48d_post
692    o in preparation for r*:
693     a) use pre-computed gradient of hydrostatic potential:
694        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
695     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
696        => affects results of glob_oce_pressure (different truncation error)  
697      update output.txt of ideal_2D_oce & global_ocean_pressure
698    
699    checkpoint48d_pre
700    o in preparation for r*:
701      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
702      pass the 2 comp. of the grad. as arguments to momentum S/R.
703      but for the moment, only used if it does not change the results.
704    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
705    
706    checkpoint48c_post
707    Modifications in treatment of initial flux forcing controls
708    to avoid extra storing of flux fields.
709    
710    checkpoint48c_pre
711    o Added tidal_basin_2d experiment (currently 1D!)
712    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
713    
714    checkpoint48b_post
715    o r* coordinate added in #ifdef NONLIN_FRSURF block.
716     (modification to pressure gradient not yet implemented)
717    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
718      (for U & V) that are used for vertical advection of momentum.
719    
720    checkpoint48a_post
721    o In preparation for r*, use temp. array to compute vertical transport
722       in flux-form momentum pkg. => change results of few test-exp.
723      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
724                        lab_sea, natl_box & plume_on_slope
725    
726    checkpoint48
727    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
728    
729    checkpoint47j_post
730    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
731    o moved adexch from forward_step to addummy_in_stepping
732    o added exch in ctrl_map_...
733    o aveFreq.=0. at end of cost_final to avoid overwrite in
734      reverse checkpointing loop
735    o Yet more changes in gmredi:
736      * adgmredi_calc_tensor
737        avoiding all recomputation of gmredi_slope_limit
738      * adgmredi_x/y/rtransport
739        added flag for excessive storing to avoid recomp. of
740        u/v/rtans, dTdx/y/z
741        -> this is not really necessary and very memory-consuming
742      * adgmredi_slope_psi:
743        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
744      * gmredi_slope_limit
745        re-activated full calculation of taperfct for case 'ac02'
746    o updating verification/ adjoints of carbon, global_ocean.90x40x15
747    
748    checkpoint47i_post
749    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
750    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
751      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
752    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
753    o gmredi: fix few bugs.
754    
755    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
756    This will be a good checkpoint to plug into the ecco-branch.
757    o few modif.'s to get latest version adjointed
758      (mainly kick out code in ini_linear_phisurf)
759    o modif's to run adjoint with exactConserv
760    o case GM_BOLUS_ADVEC should be cleaned
761      S/R gmredi_slope_psi should be cleaned
762    o verification/carbon now has exactConserv=.TRUE.
763    
764    checkpoint47g_post
765    o time-average AIM output: becomes independent from statvars time-average
766      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
767    o After TAF bug fix:
768      Tested adjoint of gmredi package.
769      Tests were done with checkpoint47 rather than with latest
770      checkpoint47f_post since the latter is broken for the adjoint
771      verification/carbon/ contains both ADM and TLM gradient checks.
772    Here they are, before they get changed/lost/stolen.
773    Mostly modif.'s to fix numerical sensitivities.
774    Gradient checks OK for
775    - GM_taper_scheme:
776      * clipping
777      * ac02
778      * linear
779      * glw91
780      * dm95
781      * ldd97
782    - GMREDI_OPTIONS:
783      * GM_VISBECK_VARIABLE_K
784      * GM_NON_UNITY_DIAGONAL
785      * GM_EXTRA_DIAGONAL
786      * GM_BOLUS_ADVEC
787    in conjunction with data.gmredi parameters to be checked in
788    in a few minutes under verification/carbon/code/
789    
790    checkpoint47f_post
791    Merging from release1_p10:
792    o modifications for using pkg/exf with pkg/seaice
793      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
794        and SEAICE_EXTERNAL_FLUXES
795      - pkg/exf CPP options EXF_READ_EVAP and
796        EXF_NO_BULK_COMPUTATIONS
797      - usage examples are Experiments 8 and 9 in
798        verification/lab_sea/README
799      - verification/lab_sea default experiment now uses
800        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
801    
802    checkpoint47e_post
803    o created a tag prior to creating a branch
804    
805    checkpoint47d_post
806    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
807      at the bottom boundary had an erroneous half slip boundary condition
808    o added bottom drag and no slip boundary condition capabilities to
809      oceanic pressure coordinates code
810    o added new verification experiment global_ocean_pressure, this experiment is
811      also described in the tutorial section of the manual
812    checkpoint47d_pre
813    
814    checkpoint47c_post
815    o Added a verification experiment for a global cubed-sphere ocean run
816      -  verification/global_ocean.cubed32x32x30
817      -  uses pkg/therm_seaice and pkg/bulk_forcing
818    
819    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
820    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
821      when using P-coordinate; only implemented for atmospheric config.
822    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
823      NOTES: requires option NONLIN_FRSURF to be "#define".
824    o update advect_xz/results/output.txt (left from checkpoint44g_post)
825    
826    checkpoint47b_post
827    Merging from release1_p9:
828    o pkg/seaice
829      - removed GOTO's and added taf directives
830      - double precision constants to reduce the g77 (Linux)
831        to F77 (SGI) differences reported in release1_p8
832    o tools/genmake
833      - added SGI options
834    o verification/testscript
835      - updated to that of checkpoint47a_post
836    o verification/global_ocean.90x40x15/input/eedata
837      - modified for SGI f77 compatibility
838    o verification/lab_sea
839      - added description of sea-ice model
840      - added missing matlab routines
841      - added test of thermodynamics parallelization
842    
843    checkpoint47a_post
844    o new pkg: aim_v23
845     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
846       for now, keep the same surface forcing as before.
847     - Part-Cell implemented into AIM; check that Heat & Water are conserved
848     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
849     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
850    o add diagnostic of surface correction term in monitor output
851    
852    o bulk_force and therm_seaice
853    - Two packages:  bulk_force (Bulk forcing)
854      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
855    - Earlier integration from Stephaine Dutkiewicz
856      and Patrick Heimbach.
857    - Two ifdef statements for compile time,
858       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
859    
860    checkpoint47
861    differentiable version of checkpoint46n_post
862    o bug fix in quasihydrostaticterms
863    o * "clean" adjoint code (in terms of extensive recomputations)
864        can now be obtained for all GMREDI options (i.e. for
865        - GM_VISBECK_VARIABLE_K
866        - GM_NON_UNITY_DIAGONAL
867        - GM_EXTRA_DIAGONAL
868        - GM_BOLUS_ADVEC )
869      * However, wrong gradient check problem remains unsolved.
870      * New CPP options have been introduced for different
871        tapering schemes
872    o external_fields_load now part of differentiation list
873    o pressure needs multiple storing;
874      would be nice to have store_pressure at beginning or
875      end of forward_step, e.g. by having phiHyd global (5-dim.)
876      (NB: pressure is needed for certain cases in find_rho,
877      which is also invoked through convective_adjustment).
878    o recomputations in find_rho for cases
879     'JMD95'/'UNESCO' or 'MDJWF' are OK.
880    o #define ATMOSPHERIC_LOADING should be differentiable
881    o ini_forcing shifted to begining of initialise_varia
882    o Incorporating QNVS line search routines into MITgcm
883      (this is separate code, and therefore not under pkg)
884      lsopt/, optim/
885    o Updated verification/carbon/
886      - #define GM_VISBECK_VARIABLE_K
887      - GM_taper_scheme    = 'ldd97'    
888    
889    checkpoint46n_post
890    Merging from release1_p8:
891    o verification/natl_box:
892      updating new external_fields_load routine
893    o New package: pkg/seaice
894      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
895      The sea-ice code is based on Hibler (1979-1980).
896      Two sea-ice dynamic solvers, ADI and LSR, are included.
897      In addition to computing prognostic sea-ice variables and diagnosing
898      the forcing/external data fields that drive the ocean model,
899      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
900      The implied surface heat flux is then stored in variable
901      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
902      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
903      non-local transport term.  Because this call precedes model
904      thermodynamics, temperature under sea-ice may not be "exactly" at
905      the freezing point by the time theta is dumped or time-averaged.
906      N.B.: fairly large differences in accuracy occur across
907            different platforms/compilers; comparison between
908            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
909            generated output gives:
910       T           S           U           V
911      C D M    c        m  s        m  s        m  s        m  s
912      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
913      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
914      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
915    
916      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
917    o GAD:
918      - generated new common blocks to account for call of
919        same gad routines with differing traceridentities
920        (needed to modify tracerIdentity indices in GAD.h)
921      - generated separate common blocks for case useCubedSphereExchange
922        (Department of Futurology)
923      - parameter lists to gmredi_?transport: added tracerIdentity
924      - added new key indices to tamc.h
925    o external_fields_load:
926      - added this routine to TAF list
927      - needed to make some common blocks global and additional storing
928        along the same lines as exf package (checkpoint_lev?_directives.h)
929    o exf:
930      updated external forcing package
931      - bug fixes carried over from ecco-branch
932        (missing OBCS_OPTIONS.h in two routines)
933      - enable easy to use "no forcing".
934      - added exf I/O for atmospheric loading
935      - added exf I/O for runoff data
936      - transfered scaling between exf <-> MITgcm to exf namelist
937    o Adding new verification experiment global_with_exf.
938      This verification experiment is almost identical to the
939      global_ocean.90x40x15 experiment, except that it uses
940      the exf (and cal) package instead of the
941      external_fields_load routine (cf README file).
942    
943    checkpoint46m_post
944    o modified testscript to return -- when there are no lines of "%MON" output
945    o added new flag "quasiHydrostatic" for QH mode
946      and new routine quasihydrostaticterms()
947    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
948      New routine: mom_u_coriolis_nh()
949    o fixed sign of non-hydrostatic metric terms in u and v equations.
950      Depend on correct sign of gravitySign.
951    o added work.pc* to .cvsignore in aim directories using ifc
952    o introduced flag for controllin non-hydrostatic metric terms
953    o removed gravitySign from PARM04
954    o switched to g77/ifc from pgf77 in aim experiments
955    
956    checkpoint46l_post
957    o made convective adjustment work with pressure coordinates:
958     - changed the direction of k-loop in convective_adjustment.F for the
959       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
960     - adjusted the reference pressure k-index in convective_adjustment.F
961     - adjusted the convection condition in convect.F (in analogy to
962       calc_ivdc.F)
963     - convective_adjustment no longer computes anything on the halos
964     - removed the warnings about negative salinity from find_rho.F and
965       find_alpha.F; instead the new routine look_for_neg_salinity, called
966       at the beginning of find_rho, find_alpha, and find_beta, does a
967       check of the entire slice, if CPP-option
968       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
969    checkpoint46l_pre
970    
971    checkpoint46k_post
972    o fixed the verification/global_ocean.90x40x15 experiment:
973     - new bathymetry (the world according to A., JMC, and M.)
974     - new initial fields and forcing fields (*.bin files)
975     - new POLY3.COEFFS (for the next release one should switch to a full
976       equation of state: JMD95P or MDJWF)
977     - fixed several errors and redundancies in the data file
978     - experiment uses looped cells
979     - added matlab directory with diagnostic scripts for plotting of output
980    
981    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
982     - read AIM physics parameters from a file (data.aimphys)
983     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
984    
985    checkpoint46j_post
986    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
987    o move wVel computation at the end of the time step, in S/R integr_continuity
988    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
989    o update timeave pkg for wVel diagnostic.
990    checkpoint46j_pre
991    
992    checkpoint46i_post
993    o Clean up AIM package (and keep the results unchanged):
994      include CPP_OPTION and use IMPLICT NONE in all routines ;
995      declare all the variables _RL ; use _d 0 for all numerical constants.
996      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
997    
998    checkpoint46h_post
999    o cleaned up the use of rhoNil and rhoConst.
1000      - rhoNil should only appear in the LINEAR equation of state, everywhere
1001        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1002        and the dynamical equations are all divided by rhoConst
1003    o introduced new parameter rhoConstFresh, a reference density of fresh
1004      water, to remove the fresh water flux's dependence on rhoNil. The default
1005      value is 999.8 kg/m^3
1006    o cleanup up external_forcing.F and external_forcing_surf.F
1007      - can now be used by both OCEANIC and OCEANICP
1008    checkpoint46h_pre
1009    
1010     Added code to convert surface volume flux (fresh water) into
1011     a mass flux when using P coordinates in the ocean (OCEANICP).
1012     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1013    
1014    checkpoint46g_post
1015    o Include a new diagnostic variable phiHydLow for the ocean model
1016      - in z-coordinates, it is the bottom pressure anomaly
1017      - in p-coordinates, it is the sea surface elevation
1018      - in both cases, these variable have global drift, reflecting the mass
1019        drift in z-coordinates and the volume drift in p-coordinates
1020      - included time averaging for phiHydLow, be aware of the drift!
1021    o depth-dependent computation of Bo_surf for pressure coordinates
1022      in the ocean (buoyancyRelation='OCEANICP')
1023      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1024        Theta, Salinity, and Pressure in the parameter list. This routine is
1025        presently contained in find_rho.F. This routine does not give the
1026        correct density for 'POLY3', which would be a z-dependent reference
1027        density.
1028    o cleaned up find_rho
1029      - removed obsolete 'eqn' from the parameter list.
1030    o added two new verification experiments: gop and goz
1031      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1032    checkpoint46g_pre
1033    
1034    checkpoint46f_post
1035    o Enable tangent linear (forward mode) gradient checks:
1036      - extended active file handling to g_... files
1037      - added TANGENT_SIMULATION to theSimulationMode
1038      - extended grdchk package accordingly
1039    o added tangent linear setup in verification/carbon/code_ftl
1040    o added adjoint setup in verification/front_relax/code_ad
1041    
1042    checkpoint46e_post
1043    o Added new equation of state -> MDJWF
1044      - EOS of McDougall et al., 2002, JAOT, submitted
1045      - caveat: the equation of state is only valid for a smaller (more
1046        realistic?) range of values than JMD95P/Z and UNESCO
1047      - added masks to the calculation of pressure in store_pressure
1048      - added more check values for density in check_eos (ini_eos.F), some of
1049        the old check values are out of the range of the MDJWF-eos, so don't
1050        expect perfect matches for those
1051    checkpoint46e_pre
1052    
1053    checkpoint46d_post
1054    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1055      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1056      case of pressure coordinates. eosType='JMD95Z' in
1057      combination with buoyancyRelation='OCEANICP' now causes an error.
1058    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1059      in find_alpha/beta.
1060    checkpoint46d_pre
1061    
1062    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1063      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1064    
1065    checkpoint46c_post
1066    o Changes necessary for ocean in p-coordinates
1067     -  Added new buoyancy relation = 'OCEANICP'
1068     -  Added new parameters = gravitySign (this used to be contained inside
1069        the factor dRdZ which I added when we first switched to R coordinates).
1070     X GM/Redi is not compatible (yet)
1071     X bottom drag and no-slip need to be debugged.
1072    checkpoint46c_pre
1073    
1074    checkpoint46b_post
1075    o Added new equation of state -> JMD95Z and JMD95P
1076      - EOS of Jackett and McDougall, 1995, JAOT
1077      - moved all EOS parameters into EOS.h
1078      - new routines ini_eos.F, store_pressure.F
1079    o Added UNESCO EOS, but not recommended because it requires
1080      in-situ temperature (see JMD95)
1081    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1082      unesco.f to be used with POLY3
1083    checkpoint46b_pre
1084    
1085    checkpoint46a_post
1086    o Added (atmospheric) pressure loading
1087      - new field in FFIELDS.h, etc...
1088      - new cpp flag ATMOSPHERIC_LOADING
1089    o Changed hFacC to _hFacC in calc_phi_hyd.F
1090    o Added SHORTWAVE_HEATING to some files for consistency
1091    checkpoint46a_pre
1092    
1093    checkpoint46
1094    further merges from release1_p5
1095    o new ctrl package
1096      - adopted from ECCO environment to enable optimization
1097      - added Eliassen Palm fluxes to controls
1098    o added Eliassen Palm flux controls to gradient check package
1099    o cost package
1100      - Compatible with new ctrl package
1101      - added Eliassen Palm cost hooks
1102      - modif's of existing cost functions
1103    o Adjoint-related bug fixes in kpp:
1104      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1105      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1106    o autodiff package
1107      - flow directives:
1108        + new for S/R do_the_model_io
1109        + enhanced for S/R checkpoint
1110        + new gmredi.flow
1111      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1112        disable adcommon.h/g_common.h by default.
1113      - fixed problem for adjoint of global_max
1114    o modified verification/carbon/
1115    o New setup for adjoint of global_ocean
1116    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1117    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1118    o incorporated hooks for sponge layer code (external_forcing.F)
1119    
1120    checkpoint45d_post
1121    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1122    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1123      (affects plume_on_slope "cg2d" output)
1124    o add new parameter deltaTfreesurf for free-surface time stepping
1125    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1126    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1127    o change phiMin in exp1 (to agree with documentation)
1128    o add new flags:
1129     - T,S forcing inside/outside Adams-Bashforth
1130     - turn off temp,salt advection and/or forcing
1131     - for each tracer, define internal flag for multiDimAdvection & A-B
1132    o monitor: change definition of KE to check conservation of Energy
1133    
1134    checkpoint45c_post
1135    o Removed f90 comments ("!")
1136    o Modified initialisations to enable exf package for MITgcm
1137      (without invoking ECCO_PACKAGE).
1138    o modifications to gradient check package (Martin Losch)
1139      - enable centered differences
1140      - modified format of standard output
1141    
1142    checkpoint45b_post
1143    o cleaned exchange calls in cg2d
1144    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1145    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1146      to configure barotropic setup (Martin Losch)
1147    o moved some initialisations within bi,bj loop in dynamics
1148      (TAF flow dependency)
1149    o in initialise_varia, moved call packages_init_variables
1150      before convective_adjustment_init
1151      (corresponding adjustment of TAF tape initialisation).
1152    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1153    
1154    checkpoint45a_post
1155    o compute Rho over the whole domain (extend iMin,jMin indices)
1156    o specific exchange for X-slice domain (case Ny=1)
1157    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1158    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1159    
1160    checkpoint44h_post = checkpoint45
1161    o Fix to restore differentiability:
1162      place at which packages_init_variables is called in
1163      initialise_varia is crucial for reverse control flow.
1164    o modifications in GMRedi to enable stable adjoint
1165      (corresponding modif's in thermodynamics, dynamics)
1166    o added missing hook for sponge layer code in external_forcing
1167    o modified test cost functions
1168    o storing in gad_advection (plus removal of write(0,*)!
1169    o missing headers TR1.h added in convective_adjustment routines
1170    o errorMessageUnit set non-equal zero in eeboot
1171      (conflict on some platforms, e.g. IBM SP3)
1172    o modified carbon verif.
1173    
1174    checkpoint44h_pre
1175    o vertical grid option: allow to put the Interface at the middle between
1176      2 cell-centers ; replace delZ in pkg/kpp by drF.
1177    o GM Advective form: Tracers are advected using the residual transport (=
1178      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1179    
1180    checkpoint44g_post
1181    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1182      results) ; ifdef missing in thermodynamics.F
1183    
1184    checkpoint44f_pre,checkpoint44f_post
1185    o added PTRACERS package
1186      This allows an arbitrary number of passive tracers to be integrated
1187      forward simultaneously with the dynamicaly model.
1188      + Implemented so far:
1189        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1190        - I/O and checkpointing
1191        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1192      + Not implemented so far:
1193        - KPP
1194        - OBCS
1195      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1196        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1197        line in data.pkg.
1198      + This package is disabled by default since it increases storage.
1199    
1200    
1201    o testscript: added -cleanup option
1202    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1203                 b) enable to filter 2D fields.
1204    
1205    checkpoint44e_pre,post
1206    o re-wrote convective adjustment to use pre-calculated weights
1207      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1208      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1209      Original calls to convect() still in place.
1210    
1211    chkpt44d_pre,post
1212    o added missing EXCLUDE_MONITOR flags
1213    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1214      (incompatible typ in MIN/MAX expressions caused problems
1215      on IBM SP3)
1216    o in genmake added variable MAKEDEPEND
1217      plus resetting for case SunOS
1218    o added timer_stats.c routine for IBM SP3
1219    o removed variables in dynamics
1220    !!! I forgot to create tag chkpt44d_pre !!!
1221    !!! But chkpt44d_pre = chkpt44c_post    !!!
1222    
1223    o real fresh water flux implemented with non-linear free-surface.
1224    
1225    chkpt44c_pre,post
1226    o few fix (mask in shap_s2, EmPmR in external_field_load,
1227      USE_NATURAL_BCS in solve_for_P);
1228    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1229    
1230    checkpoint44b_pre/_post
1231    o merge of relevant stuff from the ecco-branch:
1232      - genmake: removed $S64 overwrite for case SunOS
1233      - pkg/exf: update and corrections for field swapping and obcs
1234      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1235                  harmonized between ECCO and MITgcm
1236      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1237                      updated checkpointing_lev... lists for obcs
1238      - model/src: minor changes in forward_step, plot_field
1239                   added directive for divided adjoint in the_main_loop
1240      - pkg/mdsio: added mdsio_gl_slice
1241    
1242    o check parameters & config (chkpt44a_pre,post)
1243    o OBC and NonLin_FrSurf.
1244    
1245  checkpoint44  checkpoint44
 o apply Shapiro filter on T&S before calc_PhiHyd (stagger time stepping)  
1246  o fix bug in mom_vi_del2uv  o fix bug in mom_vi_del2uv
1247    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1248    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1249    o update AIM experiments (NCEP input files)
1250    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1251  o added some stuff for AD  o added some stuff for AD
1252    
1253  checkpoint43  checkpoint43

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