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revision 1.50 by adcroft, Thu Sep 27 14:24:19 2001 UTC revision 1.284 by dimitri, Mon May 3 06:09:39 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o removed ADI dynamic solver from pkg/seaice
7    o replaced all occurrences of 1/CSTICE or 1/CSUICE
8      - they caused a segmentation fault under certain circumstances
9      - removed unused field WATR
10    o bug fix in exf-package:
11      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
12         now reflect that.
13    o small fixes in the cal-package:
14      - set reference date to first of January for the 'model'-calendar
15      - failing of cal_CheckDate in cal_FullDate now actually results in a
16        warning
17    o small modifications in exf-package to increase flexibility:
18      - change climtempfreeze from a constant to a runtime parameter that
19        is specified in data.exf_clim (default = -1.9)
20      - introduce runtime parameter windstressmax (default = 2.0) that is
21        specified in data.exf
22    o fix in pkg/thsice:
23      - update Evap (Tsf changes) to be consistent with Latent heat flux
24      - maintain snow precipitation unchanged (even if Tsf >=0).
25     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
26    
27    checkpoint52m_post
28    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
29      this does not change any of the results, because myIter=0 in swfrac always
30      lead to jwtype=2 (the default anyway), but the call makes little sense
31      as a default
32    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
33    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
34      atmospheric model (AIM) to use it ; add a "slab ocean" component.
35    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
36    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
37    o extending useSingleCpuIO option to work with new exch2 I/O format
38      - old-style, missing-tile I/O is still accessible by defining CPP
39        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
40    o monitor package can write to NetCDF files and/or STDOUT
41    o fix re-definition bug in MNC_GRID_INIT_ALL()
42    o doc/api_reference added
43      - a framework for building an API Reference Manual using all
44        the "protex" comments embedded in the code
45      - see pkg/generic_advdiff, pkg/mnc for examples
46    o MNC:
47      - make myThid the last argument for all subroutines
48      - new default for the grid files: NO halos
49      - add useMNC and other run-time flags
50      - separate per-file-group handling of the unlimited dimension
51      - early initialization of MNC w/ flags read at the eeboot stage
52        and lookup tables set in initialize_fixed
53      - write all MNC output to a freshly-created directory
54    o thermodynamics sea-ice (thsice) is now tested with testreport.
55    o test exp. advect_cs: use the standard cs32 grid ; update output.
56    o Added functionality to grdchk:
57      pick global i,j,k position (or nearest wet) where to perform check.
58    
59    checkpoint52l_post
60    o new land formulation:
61      a) use ground enthalpy as prognostic variable to ensure exact
62         energy conservation.
63      b) account for water temperature and for latent heat of freezing
64         in all processes (rain, run-off, ground storage)
65      c) compute surface and ground temperature implicitly.
66    o aim_v23 modification for new land model:
67      a) Treat separately land / ocean / sea-ice surface fluxes
68         to allow implicit computation of land & sea-ice surface temp.
69      b) add snow precipitation.
70    checkpoint52l_pre
71    
72    o fix problem (when 1 tile is empty) in min/max monitor.
73    o fix bug in timeAve (u,vZetatave in common block)
74    o no restoring terms under ice for pkg/seaice
75    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
76    o bug fix for pkg/seaice pickups
77    o change MNC call locations and add coordinate attributes
78    o mask vorticity at the corner ; affects global_ocean.cs output
79    o fix ini_curvilinear_grid ; test CS experiments with mpi
80    o aim.5l_cs: modify sea-ice fraction input file ; update output
81    o exf: Adding simple range check routine for exf fields after read
82    
83    checkpoint52k_post
84    o removed top-level directory "diags"
85      - we migrated these functions to pkg/timeave a long time ago
86    o fixed bug introduced in pkg/monitor
87    o accuracy ctrlprec = 32 insuffient for gradient checks using
88      averaged fields (I/O via cost_averages)
89      -> use ctrl.h in active_file*.F to control I/O precision.
90    o paramter list of CALL ADTHE_MAIN_LOOP
91    o added initial do_the_model_io to ecco
92    o set all ...Freq to zero after cost_final
93      taveFreq, dumpFreq, pChkptFreq
94    o MAIN and ECCO differentiability restored
95    
96    checkpoint52j_post
97    o fix nchklev in tamc.h for global_ocean...
98    o Bringing flow and store directives up-to-date
99    o Really weird thing!
100      call do_the_model_io from the_main_loop with parameters
101      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
102      TAF places a faulty re-call of initialise_varia
103      after cost_final call which should not be there!
104    checkpoint52j_pre
105    
106    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
107      error messages
108    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
109    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
110      debug output
111    o modfied mdsio_writefield.F to handle non-global files under exch2
112    o update AIM Cubed-Sphere exp (aim.5l_cs):
113      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
114    o update AIM Equatorial Channel exp:
115      use standard aim_v23 pkg and change the SST fields to be more realistic.
116    o globalFile now works with exch2
117    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
118      mon_vort3.F to make exch2 friendly with >1 tile per cube face
119    o limit timeave output for hi-res integrations
120    
121    checkpoint52i_post
122    o removed CPP_EEOPTIONS.h from verification/*/code
123    o updated the tiling for global_ocean_pressure
124    checkpoint52i_pre
125    
126    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
127      the old pkg/aim).
128    
129    checkpoint52h_pre
130    o shortened offending lines in exch2_send_rx?.template
131    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
132    o genmake2: add build & execute test for NetCDF code
133    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
134      old grid files, moved CPP_EEMACROS.h to pkg/exch2
135    o added useSingleCPUIO flag to monitor.F and mon_out.F
136    o added temporary hack for sea-ice dynamics on the cube:
137      metric terms are ignored and it is assumed that
138      there is no sea-ice on cube faces 1, 2, 4, and 5.
139    
140    checkpoint52f_post
141    o added exch2 cube routines to pkg/exch2
142    o modified hs94.cs-32x32x5 to use it
143    o added new grid files to hs94.cs-32x32x5
144    checkpoint52f_pre
145    
146    checkpoint52e_post
147    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
148      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
149    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
150      to work with implicit vertical advection and AB ;
151    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
152    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
153     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
154    checkpoint52e_pre
155    
156    o fix bug in impldiff when Nr=1 or Nr=2.
157    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
158    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
159    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
160      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
161    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
162    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
163    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
164    
165    checkpoint52d_post
166    o re-tiled many expts to allow comparison in multi-processor mode
167      - updated output accordingly
168      - changed hs94.128x64x5 to use intial T from file rather than use the
169        random number generator
170    o add infrastructure in model routines for fizhi and gridalt packages
171    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
172    o changes to permit hi-res, cubed-sphere, configuration
173      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
174      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
175      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
176        of surface winds for the cube
177      (A verification experiment, based on global_ocean.cs32x15, but with
178       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
179       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
180       complete with example surface forcing files and matlab scripts to look
181       at the output and compare it with that of global_ocean.cs32x15.)
182    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
183       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
184       to conform to the common rule.
185    o check-in the first version of the coupler + interfaces for multi-components
186       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
187       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
188       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
189       - ocean and atmos. share the same horizontal grid (no interpolation).
190       - exchanges between component and coupler is done in forward_step
191    o new verification experiment, cpl_aim+ocn:
192       coupled ocean - AIM atmosphere on cs32 grid.
193    
194    checkpoint52d_pre
195    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
196    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
197    
198    checkpoint52c_post
199    o Fixing OPTIONS files for use of exf:
200      - ALLOW_ECCO not needed
201      - ECCO_CPPOPTIONS.h should not be included from
202        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
203        as has been the case in the past
204      - All cal/exf related options are currently set in
205        single header file. Should remain so until we
206        agree on a consistent new policy.
207    o Removed all CPP options for cal package.
208      cal has no more CPP options.
209    o modified STOREs in GAD_ADVECTION
210    o corrected key comp. for passkey
211    
212    checkpoint52b_post
213    o new version: "thsice" of thermodynamic sea-ice pkg:
214     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
215     - modify fluxes but do not change theta directly;
216     - light cleaning of bulk_force pkg (still needed with thsice).
217     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
218       + output_thsice.txt to test thsice & bulk_force pkgs.
219    o put back grid & coriolis monitor output.
220    checkpoint52b_pre
221    
222    o call "do_the_model_io" at the beginning (=> dump initial state)
223    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
224    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
225      (need info on NUMBER_OF_PTRACERS)
226    o missing PTRACERS headers in some routines
227    o default tamc.h in pkg/autodiff supposed to crash
228      to ensure proper customization
229    
230    checkpoint52a_post
231    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
232      - moved surfaceTendencyTice from pkg/seaice to main code
233      - subroutine FREEZE_SURFACE now limits only surface temperature
234        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
235        => new output.txt for global_ocean.cs32x15 & global_with_exf
236      - keep the old version of FREEZE for backward compatibility;
237        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
238      - corresponding modifs for TAF directives
239    o added surface flux output variables to TIMEAVE_STATVARS
240    o time-averaged output for pkg/ptracers
241    o fix problem with ECCO-related divided adjoint
242      snapshot file was missing some ad-variables,
243      but no warning issued by TAF
244    
245    checkpoint52a_pre
246    o some bug fixes for #undef REAL4_IS_SLOW
247    
248    checkpoint52 = ecco_c52_e35
249    o after testing adjoints of checkpoint51u_post
250    
251    checkpoint51u_post
252    o this is the post-merge tag of the ecco-branch
253      (needs another clean checkout and re-testing)
254    o various natl_box_adjoint configs and results
255      but no input fields
256    o obcs adjoint not yet merged!
257    o adding ECCO global 1x1 and 2x2 degree configs
258    o updated/extended some store directives for seaice
259    o pkg/ecco now containes ecco-specific part of cost function
260    o top level routines the_main_loop, forward_step
261      supersede those in model/src/
262      previous input data.cost now in data.ecco
263      (new namelist ecco_cost_nml)
264    o in ctrl/ cleaned some cross-dependencies and updated CPP options
265    
266    checkpoint51t_post
267    o this is the pre-merge tag of the ecco-branch
268    
269    checkpoint51s_post
270    o cleanup: removed various obsolete #define-s
271    o pkg/grdchk
272      - renamed 'ph-grd 3' to 'grad-res'
273      - merged from ecco-branch
274        (remaining bug fixes for obcs gradient checks)
275      - additional high-precision output for testreport
276        (grep for 'precision_grdchk_result')
277    
278    checkpoint51r_post
279    o cleaned up or removed CPP_OPTIONS.h files
280    o updated results for some of the tests to reflect the new
281      optfiles (-ieee: -O0 instead of -O3)
282    
283    checkpoint51q_post
284    o cd_code:
285      - moved cd_scheme.F -> cd_code_scheme.F
286      - separate read_checkpoint from cd_code_ini_vars.F
287      - separated cd_code part from write_checkpoint
288      - updated AD_SOURCE, generated .flow
289      - added CD_CODE_VARS.h to the_main_loop
290      - Moving cd_code specific store dir.s to pkg/cd_code
291    o ctrl package totally restructured
292      - pack/unpack now optional and decoupled from
293        xx_/adxx_ I/O
294      - ctrl_pack/unpack cleaned
295        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
296      - confined inclusion of AD_CONFIG.h to where necessary.
297    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
298    
299    checkpoint51p_post
300    o create initial cd_code package
301      - WARNING: the initialization of fields within packages
302        is broken because INI_FIELDS (where READ_CHECKPOINT is
303        called) is called *before* PACKAGES_INIT_VARIABLES.
304        This seems to be backwards since
305        1) its important to initially zero the entire field including
306           the "halo" region
307        2) zeroing needs to be done *before* reading pickup info
308           and the pickup call might or might not happen in any
309           particular run
310      - this needs an overhaul for R2
311    o cleanup verification/*/code/GMREDI_OPTIONS.h
312    o cleanup testreport
313    
314    checkpoint51o_post
315    o bringing AD-related verif's up to date with genmake2
316      - carbon/
317      - global_ocean.90x40x15/
318      - hs.94.1x64x5/
319      - (front_relax/ )
320    o (more) consistent directory structure for AD-related verif.'s
321    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
322    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
323    o bug fix in find_alpha.F for MDJWF:
324      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
325        change rho -> rho-rhoConst
326      - replace call find_rho to find_rhonum
327    o initialisation of rFlx extended to full array (required by TAF)
328      and shifted to thermodynamics
329    o removed PTRACERS.h in ptracers routine
330    o added surfacetendencyPtr to S/R parameter list pracers_forcing
331    o Correcting initialisations for fVerU, fVerV.
332    o helping TAF to recognize dependency on kUp for
333      fVerU, fVerV
334    o Replacing delZ by delR in pkg/ctrl/
335    checkpoint51o_pre
336    
337    o undid all of cp51 pending some cleanups and discussion
338    o added the [#include "AD_CONFIG.h"] statement to all files that need
339       it for adjoint/tl #defines
340     o re-worked the build logic in genmake2 to support AD_CONFIG.h
341     o removed tools/genmake since it no longer works
342    
343    checkpoint51n_post
344    o modifications to make FREEZE flux visible to pkg/kpp
345      - moved surfaceTendencyTice from pkg/seaice to main code
346      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
347      - subroutine FREEZE now limits only surface temperature
348        (this means new output.txt for global_ocean.90x40x15,
349         global_ocean.cs32x15, and global_with_exf)
350    o added surface flux output variables to TIMEAVE_STATVARS
351    
352    checkpoint51n_pre
353    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
354    o added [#include "AD_CONFIG.h"] to all files that use the following
355      defines:
356      - ALLOW_ADJOINT_RUN
357      - ALLOW_TANGENTLINEAR_RUN
358      - ALLOW_ECCO_OPTIMIZATION
359    
360    checkpoint51m_post
361    o incorporating changes to get TAMC/TAF working in genmake2
362      - added new TAMC/TAF targets to the Makefile
363      - various cleanups related to package handling
364      - these changes should have no impact on the forward model
365    
366    checkpoint51l_post
367    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
368     - faster algorithm for cal_addtime.F
369     - higher precision arithmetic, where needed
370     - pkg/exf *startdate variables changed from calendar date to
371       model integration time
372    
373    checkpoint51l_pre
374    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
375    o enable to apply restoring on S & T only in a latitude band.
376    o update output (external_forcing_surf modif. change truncation errors)
377       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
378    
379    checkpoint51k_post
380    o change default to: useNHMTerms=.FALSE.
381     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
382       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
383     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
384        exp1, ideal_2D_oce
385     - change data file of oceanic exp (leave the results unchanged for now)
386       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
387    o set gravitySign automatically according to the vertical coordinate used
388      (and change sign: back to "logical" value: +1 when R increases downward)
389    o added an include barrier to the default CPP_OPTIONS.h and
390      removed the #include "PACKAGES_CONFIG.h" from it
391    o fix a bug in mom_fluxform (from chk51j_post)
392    
393    checkpoint51j_post
394    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
395    o adjusted some flow directives (dynamics, thermodynamics)
396    o added cubed-sphere case to test cost function
397    o heckpoint_lev?_directives.h now include
398      pkg-specific directives, whenever those are enabled.
399    o Moving pkg-specific flow directives to corresponding pkg
400      Moving pkg-specific differentiation list to corresponding pkg
401      Moving pkg-specific checkpoint-lev storing to corresponding pkg
402      ---> conventions are
403           - pkg_ad.flow
404           - pkg_ad_diff.list
405           - pkg_ad_check_lev?_dir.h
406    
407    checkpoint51i_post
408    o merge of the branch-genmake2
409      - knowingly breaks the older genmake
410      - automatic generation of all ALLOW_${PKG_NAME} defines
411      - new testreport supersedes older testscript
412    o large number of package inclusion and header cleanups
413    checkpoint51i_pre
414    
415    o new output for adjoin of global ocean vector invariant
416    o fix for checkpoint of thermodynamic seaice and bulk_force
417    o Steph gchem various cleanups
418    
419    checkpoint 51h_pre
420    o fixed some single quotes
421    o modify gchem pkg to be more versatile
422    o modifications to clean up dic pkg
423    o add pkg/cfc
424    
425    checkpoint51g_post
426    o provide links for ARPACK and ADM*TLM
427    o start removing verification/vero/
428    o update AD-related stuff
429      (in particular some IF-statements in model/src/ routines)
430    o adding to verification/global_ocean.90x40x15/ adjoint of
431      vector invariant setup
432    
433    checkpoint51f_post
434    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
435    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
436      of tracer Green's fucntions for ocean inversion project.
437    
438    checkpoint51f_pre
439    o Added on-the-fly spatial interpolation capability
440        "USE_EXF_INTERPOLATION" to pkg/exf.
441      - This is a temporary Cartesian-grid hack until
442        the super-duper ESMF coupler becomes available.
443      - See verification/global_with_exf/README for usage example.
444      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
445        flags and modified pkg/seaice accordingly.
446    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
447        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
448        non-local transport term.
449    
450    checkpoint51e_post
451    o pkg/mom_vecinv:
452      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
453      - add time-ave diagnostic of vorticity advection.
454    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
455    o atmospheric geopotential: - include water vapor effect;
456                                - use p^kappa in p* scaling.
457    o land pkg: read initial state from files.
458    o AIM : add stratospheric drag in the upper level
459    
460    checkpoint51d_post
461    o change function ILNBLNK (=> last non-blank char.) to return zero
462      (instead of the string length) when the string. char is empty
463    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
464    o modif's to restore TAMC compatibility
465      - avoid "_d" constructs in PARAMETER declarations
466      - avoid interrupting lines by comment lines
467    o Use cluster local disks for purely local I/O
468      vs. globally visible disks needed for ctrl stuff
469      (merged from ecco-branch)
470      - new active_file_loc... and mdsio_..._loc routines
471      - affected packages: autodiff, ctrl, grdchk, mdsio
472    
473    checkpoint51c_post
474    o introducing integer flag debugLevel
475      - debLevZero: suppress all output
476      - debLevA: standard
477      - debLevB: equivalent to current debugMode=.TRUE.
478    o introducing pathname variable mdsioLocalDir for mdsio
479      that can be specified at runtime
480      (relevant for cluster I/O to local disk)
481    `
482    >>>checkpoint51b_post
483    adjoint of ptracers
484    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
485    o extended state in checkpoint_lev?, etc.
486    o alternative ctrl/cost with tr1 or ptracer
487    o new comlev1_bibj_ptracers
488    o new ptracers.flow
489    o made ptracers_forcing same as external_forcing_s
490    o added verification for adjoint with ptracers
491      - adm. grdchk fail so far
492      - tlm. grdchk OK
493      - checked tapelev/comlev recomputations: OK
494    <<<checkpoint51b_pre
495    
496    checkpoint51a_post
497    o added code for biogeochemistry package
498      - new pkgs: dic, gchem
499      - new subroutine in ptracers
500    o modify code for biogeo packages
501      - in model/src and pkg/ptracers
502    
503    checkpoint51
504    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
505      - autodiff, ctrl, exf, grdchk, seaice
506      kept separate packages
507      - cost, ecco, obcs
508    o updating verification/internal_wave, verification/lab_sea
509      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
510    
511    checkpoint50i_post
512    o Preparing next differentiable checkpoint and sync
513      of MAIN vs. ecco-branch
514      - 1st step: this one is differentiable
515      - 2nd step: next(! not this) checkpoint will have updated packages
516                  from ecco-branch)
517    
518    checkpoint50h_post
519    o new package "land": provide surface BC for AIM.
520    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
521    o AIM: use true log-P extrapolation for near surface temp (= as in
522        F.Molteni paper) ; update aim.5l_cs output.
523    o New variable in PARM03 for more flexible pickups
524    o somewhat cleaned package initialisation sequence for
525      ctrl/ cost/ ecco/ in packages_... routines
526    
527    checkpoint50g_post
528    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
529      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
530      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
531        made the default because of faster convergence than ADI
532    
533    checkpoint50f_post
534    o exf totally restructured
535      - replaced all exf_set_ routines by one generic exf_set_gen.F
536        and made sure it's still differentiable
537      - split exf_getffields.F into new exf_bulkformulae.F
538      - exf_inscal_/exf_outscal_ suffixes consistent with field names
539      - updated adjoint/makefile and relevant verif. accordingly
540    
541    checkpoint50f_pre
542     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
543          + change Evap over land. (update aim.5l_cs output)
544     o added missing .cvsignores and made uniform across expts
545     o changed configuration of tidal_basin_2d expt
546     o added pkg/debug functions for tracing code in fatal crashes
547     o tidied pkg/monitor to use MONITOR_OPTIONS.h
548     o new fn in pkg/monitor to stop model if solution grows too big
549     o removed lots of single quotes from comments
550    
551    checkpoint50e_post
552    o make KPP work with PTRACERS
553     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
554       nearly a copy of kpp_transport_s
555     - there is no analogue to SurfaceTendencyS, so I have to use
556       gPtr(of the surface layer) instead
557    o add a new platform SunFire+mpi (SunFire 15000) to genmake
558    checkpoint50e_pre
559    
560    checkpoint50d_post
561    o change kpp output from multiple-record state files to single-record state
562      files analogous to write_state.F
563    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
564      analogous to the cg2d-related output.
565    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
566      so that writing to internal file fn (with length 512) fails.
567    checkpoint50d_pre
568    
569    checkpoint50c_post
570    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
571    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
572    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
573    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
574    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
575    
576    checkpoint50c_pre
577    Merging from release1_p13:
578    o bug fix for pkg/seaice dynamic solver
579    o Added SEAICE_initialHEFF to pkg/seaice
580    
581    checkpoint50b_post
582    o store u*,v* in gU,V instead of in guNm1,gvNm1
583    o in order to put the momForcing out of the Adams-Bashforth:
584      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
585      to timestep.F
586    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
587    o re-generate output for highly sensitive test-exp:
588       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
589    
590    checkpoint50b_pre
591    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
592    o corrected CPP option mismatch in exf_Bulk... functions for case
593      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
594    
595    checkpoint50a_post
596    o Bug fix for merging between c50 and KPP.
597      ikey was passed from thermodynamics to kpp_calc via
598      common block rather than being recomputed in kpp_calc,
599      in contradiction with new key itdkey.
600      New key ikppkey created, and tamc.h headers updated.
601    
602    checkpoint50
603    - 2nd step of merge with ecco-branch:
604      merge changes in ecco-branch back into main trunk
605    - bug fix in find_alpha
606    - more storing in gmredi_calc_tensor.F, kpp_routines.F
607    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
608    - merged some sliced AD support routines
609    
610    checkpoint49
611    merged from ecco-branch:
612    o exf:
613      - Enable initialisation of forcing fields to constant
614        (runtime) values.
615      - in exf_getffields.F
616        Reduce i-/j-loop to interior domain, discarding overlaps.
617        That also fixes wrong TAF-key computations for key_1, key_2
618        with bulf formulae.
619      - exf_init.F modify #ifdef for exf_init_evap
620      - exf_getffieldrec.F, ctrl_getrec.F
621        The following INT-usages are not safe:
622          fldsecs  = int(fldsecs/fldperiod)*fldperiod
623          fldcount = int(fldsecs/fldperiod) + 1
624        and were modified.
625    o autodiff: checkpoint_lev...
626      - updated storing for bulk formulae (some arrays were missing)
627      - added state for seaice package
628      - synchronized with main branch
629    o DIVA:
630      Modif.s in
631      - the_main_loop.F
632      - the_model_main.F
633      and added cost_final_restore.F cost_final_store.F
634      o With these changes, it is possible to fully separate
635        the first forward run to compute the cost function (mdthe_main_loop)
636        and adjoint runs over individual DIVA intervals (adthe_main_loop)
637        into separate model executions.
638        This enables better tuning of DIVA to given queue sizes.
639      o Loss of cost function value in consecutive DIVA runs is
640        fixed by storing to 'costfinal' file.
641      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
642        beginning/end of adjoint integration is accounted for.
643      The current changes apply to TAF-1.4.26.
644      TAF has one remaining bug, requiring one manual change
645      (see MITgcm manual).
646    o cal: synchronized between MAIN and ecco-branch
647    
648    checkpoint48i_post
649    o Changes to restore differentiability of code w.r.t. previous tag
650      (mostly adding new routines to make list and replacing
651      pressure by totPhiHyd).
652    o Updated and merged grdchk package
653      - has both ADM and TLM checks
654      - works for single- and multi-proc.
655      - output cleaned
656      - worked successfully for parallel DIVA
657    o genmake:
658      - Adding -platform=SP4
659      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
660    o Modif. for DIVA:
661      ctrl_unpack should not be called in intermediate DIVA interval.
662      (similar thing would apply for active files such as
663      tbar, sbar, psbar, which should not be reinitialised;
664      only relevant for ecco-branch)
665    
666    checkpoint48h_post
667    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
668    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
669    o Added SEAICE_initialHEFF to pkg/seaice
670    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
671    
672    checkpoint48g_post
673    --- EOS:
674    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
675      store total Potential in totPhyHyd for diagnostics & EOS.
676    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
677    --- Pressure/geopotential gradient:
678    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
679    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
680      ( changes results of global_ocean_pressure )
681    o NLFS + z-coord.: add eta*Rho' contribution.
682    o accurate phiHyd when using interface-W at the middle between 2 centers
683     ( changes results of ideal_2D_oce )
684    o includes r* 2nd term in potential gradient.
685    
686    checkpoint48f_post
687    Merging from release1_p12:
688    o Modifications for using pkg/exf with pkg/seaice
689      - improved description of the various forcing configurations
690      - added basic radiation bulk formulae to pkg/exf
691      - units/sign fix for evap computation in exf_getffields.F
692      - updated verification/global_with_exf/results/output.txt
693    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
694      (SBO) core products, including oceanic mass, center-of-mass,
695      angular, and bottom pressure (see pkg/sbo/README.sbo).
696    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
697      to avoid negative values in shallow regions.
698      - updated verification/natl_box/results/output.txt
699      - updated verification/lab_sea/results/output.txt
700    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
701    o Added useSingleCpuIO option (see PARAMS.h).
702    o Updated useSingleCpuIO option in mdsio_writefield.F to
703      work with multi-field files, e.g., for single-file pickup.
704    o pkg/seaice:
705      - bug fix in growth.F: QNET for no shortwave case
706      - added HeffFile for specifying initial sea-ice thickness
707      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
708    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
709      kpp_transport_t.F, forward_step.F, and the_main_loop.F
710    o pkg/seaice:
711      - adjoint-friendly modifications
712      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
713    
714    checkpoint48e_post
715    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
716    o dynamics: change definition of computational domain & adapt mom_fluxform
717      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
718    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
719        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
720        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
721        global_ocean.90x40x15 global_with_exf global_ocean_pressure
722        inverted_barometer solid-body.cs-32x32x1
723      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
724    
725    checkpoint48d_post
726    o in preparation for r*:
727     a) use pre-computed gradient of hydrostatic potential:
728        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
729     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
730        => affects results of glob_oce_pressure (different truncation error)  
731      update output.txt of ideal_2D_oce & global_ocean_pressure
732    
733    checkpoint48d_pre
734    o in preparation for r*:
735      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
736      pass the 2 comp. of the grad. as arguments to momentum S/R.
737      but for the moment, only used if it does not change the results.
738    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
739    
740    checkpoint48c_post
741    Modifications in treatment of initial flux forcing controls
742    to avoid extra storing of flux fields.
743    
744    checkpoint48c_pre
745    o Added tidal_basin_2d experiment (currently 1D!)
746    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
747    
748    checkpoint48b_post
749    o r* coordinate added in #ifdef NONLIN_FRSURF block.
750     (modification to pressure gradient not yet implemented)
751    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
752      (for U & V) that are used for vertical advection of momentum.
753    
754    checkpoint48a_post
755    o In preparation for r*, use temp. array to compute vertical transport
756       in flux-form momentum pkg. => change results of few test-exp.
757      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
758                        lab_sea, natl_box & plume_on_slope
759    
760    checkpoint48
761    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
762    
763    checkpoint47j_post
764    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
765    o moved adexch from forward_step to addummy_in_stepping
766    o added exch in ctrl_map_...
767    o aveFreq.=0. at end of cost_final to avoid overwrite in
768      reverse checkpointing loop
769    o Yet more changes in gmredi:
770      * adgmredi_calc_tensor
771        avoiding all recomputation of gmredi_slope_limit
772      * adgmredi_x/y/rtransport
773        added flag for excessive storing to avoid recomp. of
774        u/v/rtans, dTdx/y/z
775        -> this is not really necessary and very memory-consuming
776      * adgmredi_slope_psi:
777        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
778      * gmredi_slope_limit
779        re-activated full calculation of taperfct for case 'ac02'
780    o updating verification/ adjoints of carbon, global_ocean.90x40x15
781    
782    checkpoint47i_post
783    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
784    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
785      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
786    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
787    o gmredi: fix few bugs.
788    
789    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
790    This will be a good checkpoint to plug into the ecco-branch.
791    o few modif.'s to get latest version adjointed
792      (mainly kick out code in ini_linear_phisurf)
793    o modif's to run adjoint with exactConserv
794    o case GM_BOLUS_ADVEC should be cleaned
795      S/R gmredi_slope_psi should be cleaned
796    o verification/carbon now has exactConserv=.TRUE.
797    
798    checkpoint47g_post
799    o time-average AIM output: becomes independent from statvars time-average
800      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
801    o After TAF bug fix:
802      Tested adjoint of gmredi package.
803      Tests were done with checkpoint47 rather than with latest
804      checkpoint47f_post since the latter is broken for the adjoint
805      verification/carbon/ contains both ADM and TLM gradient checks.
806    Here they are, before they get changed/lost/stolen.
807    Mostly modif.'s to fix numerical sensitivities.
808    Gradient checks OK for
809    - GM_taper_scheme:
810      * clipping
811      * ac02
812      * linear
813      * glw91
814      * dm95
815      * ldd97
816    - GMREDI_OPTIONS:
817      * GM_VISBECK_VARIABLE_K
818      * GM_NON_UNITY_DIAGONAL
819      * GM_EXTRA_DIAGONAL
820      * GM_BOLUS_ADVEC
821    in conjunction with data.gmredi parameters to be checked in
822    in a few minutes under verification/carbon/code/
823    
824    checkpoint47f_post
825    Merging from release1_p10:
826    o modifications for using pkg/exf with pkg/seaice
827      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
828        and SEAICE_EXTERNAL_FLUXES
829      - pkg/exf CPP options EXF_READ_EVAP and
830        EXF_NO_BULK_COMPUTATIONS
831      - usage examples are Experiments 8 and 9 in
832        verification/lab_sea/README
833      - verification/lab_sea default experiment now uses
834        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
835    
836    checkpoint47e_post
837    o created a tag prior to creating a branch
838    
839    checkpoint47d_post
840    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
841      at the bottom boundary had an erroneous half slip boundary condition
842    o added bottom drag and no slip boundary condition capabilities to
843      oceanic pressure coordinates code
844    o added new verification experiment global_ocean_pressure, this experiment is
845      also described in the tutorial section of the manual
846    checkpoint47d_pre
847    
848    checkpoint47c_post
849    o Added a verification experiment for a global cubed-sphere ocean run
850      -  verification/global_ocean.cubed32x32x30
851      -  uses pkg/therm_seaice and pkg/bulk_forcing
852    
853    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
854    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
855      when using P-coordinate; only implemented for atmospheric config.
856    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
857      NOTES: requires option NONLIN_FRSURF to be "#define".
858    o update advect_xz/results/output.txt (left from checkpoint44g_post)
859    
860    checkpoint47b_post
861    Merging from release1_p9:
862    o pkg/seaice
863      - removed GOTO's and added taf directives
864      - double precision constants to reduce the g77 (Linux)
865        to F77 (SGI) differences reported in release1_p8
866    o tools/genmake
867      - added SGI options
868    o verification/testscript
869      - updated to that of checkpoint47a_post
870    o verification/global_ocean.90x40x15/input/eedata
871      - modified for SGI f77 compatibility
872    o verification/lab_sea
873      - added description of sea-ice model
874      - added missing matlab routines
875      - added test of thermodynamics parallelization
876    
877    checkpoint47a_post
878    o new pkg: aim_v23
879     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
880       for now, keep the same surface forcing as before.
881     - Part-Cell implemented into AIM; check that Heat & Water are conserved
882     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
883     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
884    o add diagnostic of surface correction term in monitor output
885    
886    o bulk_force and therm_seaice
887    - Two packages:  bulk_force (Bulk forcing)
888      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
889    - Earlier integration from Stephaine Dutkiewicz
890      and Patrick Heimbach.
891    - Two ifdef statements for compile time,
892       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
893    
894    checkpoint47
895    differentiable version of checkpoint46n_post
896    o bug fix in quasihydrostaticterms
897    o * "clean" adjoint code (in terms of extensive recomputations)
898        can now be obtained for all GMREDI options (i.e. for
899        - GM_VISBECK_VARIABLE_K
900        - GM_NON_UNITY_DIAGONAL
901        - GM_EXTRA_DIAGONAL
902        - GM_BOLUS_ADVEC )
903      * However, wrong gradient check problem remains unsolved.
904      * New CPP options have been introduced for different
905        tapering schemes
906    o external_fields_load now part of differentiation list
907    o pressure needs multiple storing;
908      would be nice to have store_pressure at beginning or
909      end of forward_step, e.g. by having phiHyd global (5-dim.)
910      (NB: pressure is needed for certain cases in find_rho,
911      which is also invoked through convective_adjustment).
912    o recomputations in find_rho for cases
913     'JMD95'/'UNESCO' or 'MDJWF' are OK.
914    o #define ATMOSPHERIC_LOADING should be differentiable
915    o ini_forcing shifted to begining of initialise_varia
916    o Incorporating QNVS line search routines into MITgcm
917      (this is separate code, and therefore not under pkg)
918      lsopt/, optim/
919    o Updated verification/carbon/
920      - #define GM_VISBECK_VARIABLE_K
921      - GM_taper_scheme    = 'ldd97'    
922    
923    checkpoint46n_post
924    Merging from release1_p8:
925    o verification/natl_box:
926      updating new external_fields_load routine
927    o New package: pkg/seaice
928      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
929      The sea-ice code is based on Hibler (1979-1980).
930      Two sea-ice dynamic solvers, ADI and LSR, are included.
931      In addition to computing prognostic sea-ice variables and diagnosing
932      the forcing/external data fields that drive the ocean model,
933      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
934      The implied surface heat flux is then stored in variable
935      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
936      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
937      non-local transport term.  Because this call precedes model
938      thermodynamics, temperature under sea-ice may not be "exactly" at
939      the freezing point by the time theta is dumped or time-averaged.
940      N.B.: fairly large differences in accuracy occur across
941            different platforms/compilers; comparison between
942            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
943            generated output gives:
944       T           S           U           V
945      C D M    c        m  s        m  s        m  s        m  s
946      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
947      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
948      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
949    
950      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
951    o GAD:
952      - generated new common blocks to account for call of
953        same gad routines with differing traceridentities
954        (needed to modify tracerIdentity indices in GAD.h)
955      - generated separate common blocks for case useCubedSphereExchange
956        (Department of Futurology)
957      - parameter lists to gmredi_?transport: added tracerIdentity
958      - added new key indices to tamc.h
959    o external_fields_load:
960      - added this routine to TAF list
961      - needed to make some common blocks global and additional storing
962        along the same lines as exf package (checkpoint_lev?_directives.h)
963    o exf:
964      updated external forcing package
965      - bug fixes carried over from ecco-branch
966        (missing OBCS_OPTIONS.h in two routines)
967      - enable easy to use "no forcing".
968      - added exf I/O for atmospheric loading
969      - added exf I/O for runoff data
970      - transfered scaling between exf <-> MITgcm to exf namelist
971    o Adding new verification experiment global_with_exf.
972      This verification experiment is almost identical to the
973      global_ocean.90x40x15 experiment, except that it uses
974      the exf (and cal) package instead of the
975      external_fields_load routine (cf README file).
976    
977    checkpoint46m_post
978    o modified testscript to return -- when there are no lines of "%MON" output
979    o added new flag "quasiHydrostatic" for QH mode
980      and new routine quasihydrostaticterms()
981    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
982      New routine: mom_u_coriolis_nh()
983    o fixed sign of non-hydrostatic metric terms in u and v equations.
984      Depend on correct sign of gravitySign.
985    o added work.pc* to .cvsignore in aim directories using ifc
986    o introduced flag for controllin non-hydrostatic metric terms
987    o removed gravitySign from PARM04
988    o switched to g77/ifc from pgf77 in aim experiments
989    
990    checkpoint46l_post
991    o made convective adjustment work with pressure coordinates:
992     - changed the direction of k-loop in convective_adjustment.F for the
993       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
994     - adjusted the reference pressure k-index in convective_adjustment.F
995     - adjusted the convection condition in convect.F (in analogy to
996       calc_ivdc.F)
997     - convective_adjustment no longer computes anything on the halos
998     - removed the warnings about negative salinity from find_rho.F and
999       find_alpha.F; instead the new routine look_for_neg_salinity, called
1000       at the beginning of find_rho, find_alpha, and find_beta, does a
1001       check of the entire slice, if CPP-option
1002       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1003    checkpoint46l_pre
1004    
1005    checkpoint46k_post
1006    o fixed the verification/global_ocean.90x40x15 experiment:
1007     - new bathymetry (the world according to A., JMC, and M.)
1008     - new initial fields and forcing fields (*.bin files)
1009     - new POLY3.COEFFS (for the next release one should switch to a full
1010       equation of state: JMD95P or MDJWF)
1011     - fixed several errors and redundancies in the data file
1012     - experiment uses looped cells
1013     - added matlab directory with diagnostic scripts for plotting of output
1014    
1015    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1016     - read AIM physics parameters from a file (data.aimphys)
1017     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1018    
1019    checkpoint46j_post
1020    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1021    o move wVel computation at the end of the time step, in S/R integr_continuity
1022    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1023    o update timeave pkg for wVel diagnostic.
1024    checkpoint46j_pre
1025    
1026    checkpoint46i_post
1027    o Clean up AIM package (and keep the results unchanged):
1028      include CPP_OPTION and use IMPLICT NONE in all routines ;
1029      declare all the variables _RL ; use _d 0 for all numerical constants.
1030      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1031    
1032    checkpoint46h_post
1033    o cleaned up the use of rhoNil and rhoConst.
1034      - rhoNil should only appear in the LINEAR equation of state, everywhere
1035        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1036        and the dynamical equations are all divided by rhoConst
1037    o introduced new parameter rhoConstFresh, a reference density of fresh
1038      water, to remove the fresh water flux's dependence on rhoNil. The default
1039      value is 999.8 kg/m^3
1040    o cleanup up external_forcing.F and external_forcing_surf.F
1041      - can now be used by both OCEANIC and OCEANICP
1042    checkpoint46h_pre
1043    
1044     Added code to convert surface volume flux (fresh water) into
1045     a mass flux when using P coordinates in the ocean (OCEANICP).
1046     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1047    
1048    checkpoint46g_post
1049    o Include a new diagnostic variable phiHydLow for the ocean model
1050      - in z-coordinates, it is the bottom pressure anomaly
1051      - in p-coordinates, it is the sea surface elevation
1052      - in both cases, these variable have global drift, reflecting the mass
1053        drift in z-coordinates and the volume drift in p-coordinates
1054      - included time averaging for phiHydLow, be aware of the drift!
1055    o depth-dependent computation of Bo_surf for pressure coordinates
1056      in the ocean (buoyancyRelation='OCEANICP')
1057      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1058        Theta, Salinity, and Pressure in the parameter list. This routine is
1059        presently contained in find_rho.F. This routine does not give the
1060        correct density for 'POLY3', which would be a z-dependent reference
1061        density.
1062    o cleaned up find_rho
1063      - removed obsolete 'eqn' from the parameter list.
1064    o added two new verification experiments: gop and goz
1065      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1066    checkpoint46g_pre
1067    
1068    checkpoint46f_post
1069    o Enable tangent linear (forward mode) gradient checks:
1070      - extended active file handling to g_... files
1071      - added TANGENT_SIMULATION to theSimulationMode
1072      - extended grdchk package accordingly
1073    o added tangent linear setup in verification/carbon/code_ftl
1074    o added adjoint setup in verification/front_relax/code_ad
1075    
1076    checkpoint46e_post
1077    o Added new equation of state -> MDJWF
1078      - EOS of McDougall et al., 2002, JAOT, submitted
1079      - caveat: the equation of state is only valid for a smaller (more
1080        realistic?) range of values than JMD95P/Z and UNESCO
1081      - added masks to the calculation of pressure in store_pressure
1082      - added more check values for density in check_eos (ini_eos.F), some of
1083        the old check values are out of the range of the MDJWF-eos, so don't
1084        expect perfect matches for those
1085    checkpoint46e_pre
1086    
1087    checkpoint46d_post
1088    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1089      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1090      case of pressure coordinates. eosType='JMD95Z' in
1091      combination with buoyancyRelation='OCEANICP' now causes an error.
1092    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1093      in find_alpha/beta.
1094    checkpoint46d_pre
1095    
1096    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1097      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1098    
1099    checkpoint46c_post
1100    o Changes necessary for ocean in p-coordinates
1101     -  Added new buoyancy relation = 'OCEANICP'
1102     -  Added new parameters = gravitySign (this used to be contained inside
1103        the factor dRdZ which I added when we first switched to R coordinates).
1104     X GM/Redi is not compatible (yet)
1105     X bottom drag and no-slip need to be debugged.
1106    checkpoint46c_pre
1107    
1108    checkpoint46b_post
1109    o Added new equation of state -> JMD95Z and JMD95P
1110      - EOS of Jackett and McDougall, 1995, JAOT
1111      - moved all EOS parameters into EOS.h
1112      - new routines ini_eos.F, store_pressure.F
1113    o Added UNESCO EOS, but not recommended because it requires
1114      in-situ temperature (see JMD95)
1115    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1116      unesco.f to be used with POLY3
1117    checkpoint46b_pre
1118    
1119    checkpoint46a_post
1120    o Added (atmospheric) pressure loading
1121      - new field in FFIELDS.h, etc...
1122      - new cpp flag ATMOSPHERIC_LOADING
1123    o Changed hFacC to _hFacC in calc_phi_hyd.F
1124    o Added SHORTWAVE_HEATING to some files for consistency
1125    checkpoint46a_pre
1126    
1127    checkpoint46
1128    further merges from release1_p5
1129    o new ctrl package
1130      - adopted from ECCO environment to enable optimization
1131      - added Eliassen Palm fluxes to controls
1132    o added Eliassen Palm flux controls to gradient check package
1133    o cost package
1134      - Compatible with new ctrl package
1135      - added Eliassen Palm cost hooks
1136      - modif's of existing cost functions
1137    o Adjoint-related bug fixes in kpp:
1138      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1139      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1140    o autodiff package
1141      - flow directives:
1142        + new for S/R do_the_model_io
1143        + enhanced for S/R checkpoint
1144        + new gmredi.flow
1145      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1146        disable adcommon.h/g_common.h by default.
1147      - fixed problem for adjoint of global_max
1148    o modified verification/carbon/
1149    o New setup for adjoint of global_ocean
1150    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1151    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1152    o incorporated hooks for sponge layer code (external_forcing.F)
1153    
1154    checkpoint45d_post
1155    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1156    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1157      (affects plume_on_slope "cg2d" output)
1158    o add new parameter deltaTfreesurf for free-surface time stepping
1159    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1160    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1161    o change phiMin in exp1 (to agree with documentation)
1162    o add new flags:
1163     - T,S forcing inside/outside Adams-Bashforth
1164     - turn off temp,salt advection and/or forcing
1165     - for each tracer, define internal flag for multiDimAdvection & A-B
1166    o monitor: change definition of KE to check conservation of Energy
1167    
1168    checkpoint45c_post
1169    o Removed f90 comments ("!")
1170    o Modified initialisations to enable exf package for MITgcm
1171      (without invoking ECCO_PACKAGE).
1172    o modifications to gradient check package (Martin Losch)
1173      - enable centered differences
1174      - modified format of standard output
1175    
1176    checkpoint45b_post
1177    o cleaned exchange calls in cg2d
1178    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1179    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1180      to configure barotropic setup (Martin Losch)
1181    o moved some initialisations within bi,bj loop in dynamics
1182      (TAF flow dependency)
1183    o in initialise_varia, moved call packages_init_variables
1184      before convective_adjustment_init
1185      (corresponding adjustment of TAF tape initialisation).
1186    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1187    
1188    checkpoint45a_post
1189    o compute Rho over the whole domain (extend iMin,jMin indices)
1190    o specific exchange for X-slice domain (case Ny=1)
1191    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1192    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1193    
1194    checkpoint44h_post = checkpoint45
1195    o Fix to restore differentiability:
1196      place at which packages_init_variables is called in
1197      initialise_varia is crucial for reverse control flow.
1198    o modifications in GMRedi to enable stable adjoint
1199      (corresponding modif's in thermodynamics, dynamics)
1200    o added missing hook for sponge layer code in external_forcing
1201    o modified test cost functions
1202    o storing in gad_advection (plus removal of write(0,*)!
1203    o missing headers TR1.h added in convective_adjustment routines
1204    o errorMessageUnit set non-equal zero in eeboot
1205      (conflict on some platforms, e.g. IBM SP3)
1206    o modified carbon verif.
1207    
1208    checkpoint44h_pre
1209    o vertical grid option: allow to put the Interface at the middle between
1210      2 cell-centers ; replace delZ in pkg/kpp by drF.
1211    o GM Advective form: Tracers are advected using the residual transport (=
1212      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1213    
1214    checkpoint44g_post
1215    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1216      results) ; ifdef missing in thermodynamics.F
1217    
1218    checkpoint44f_pre,checkpoint44f_post
1219    o added PTRACERS package
1220      This allows an arbitrary number of passive tracers to be integrated
1221      forward simultaneously with the dynamicaly model.
1222      + Implemented so far:
1223        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1224        - I/O and checkpointing
1225        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1226      + Not implemented so far:
1227        - KPP
1228        - OBCS
1229      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1230        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1231        line in data.pkg.
1232      + This package is disabled by default since it increases storage.
1233    
1234    
1235    o testscript: added -cleanup option
1236    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1237                 b) enable to filter 2D fields.
1238    
1239    checkpoint44e_pre,post
1240    o re-wrote convective adjustment to use pre-calculated weights
1241      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1242      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1243      Original calls to convect() still in place.
1244    
1245    chkpt44d_pre,post
1246    o added missing EXCLUDE_MONITOR flags
1247    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1248      (incompatible typ in MIN/MAX expressions caused problems
1249      on IBM SP3)
1250    o in genmake added variable MAKEDEPEND
1251      plus resetting for case SunOS
1252    o added timer_stats.c routine for IBM SP3
1253    o removed variables in dynamics
1254    !!! I forgot to create tag chkpt44d_pre !!!
1255    !!! But chkpt44d_pre = chkpt44c_post    !!!
1256    
1257    o real fresh water flux implemented with non-linear free-surface.
1258    
1259    chkpt44c_pre,post
1260    o few fix (mask in shap_s2, EmPmR in external_field_load,
1261      USE_NATURAL_BCS in solve_for_P);
1262    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1263    
1264    checkpoint44b_pre/_post
1265    o merge of relevant stuff from the ecco-branch:
1266      - genmake: removed $S64 overwrite for case SunOS
1267      - pkg/exf: update and corrections for field swapping and obcs
1268      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1269                  harmonized between ECCO and MITgcm
1270      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1271                      updated checkpointing_lev... lists for obcs
1272      - model/src: minor changes in forward_step, plot_field
1273                   added directive for divided adjoint in the_main_loop
1274      - pkg/mdsio: added mdsio_gl_slice
1275    
1276    o check parameters & config (chkpt44a_pre,post)
1277    o OBC and NonLin_FrSurf.
1278    
1279    checkpoint44
1280    o fix bug in mom_vi_del2uv
1281    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1282    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1283    o update AIM experiments (NCEP input files)
1284    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1285    o added some stuff for AD
1286    
1287    checkpoint43
1288    o added two new advection tests
1289    o added global 4x4 degree ocean test
1290    o added test of H&S94 with free surface on cube
1291    o some final mods for gradient check, adjoint,...
1292    
1293    checkpoint42
1294      Fixed AD-related problems:
1295    o Store directives up-to-date with re-arranged Adams-Bashforth
1296      (mainly thermodynamics.F)
1297    o New store directives for multi-dim. advection schemes
1298      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1299      * new common block and key passkey
1300      (mainly gad_advection.F)
1301    o Modified store directives for split of dynamics/thermodynamics
1302      for the case ALLOW_KPP
1303    o Cleaned argument list for timestep_tracer.F
1304    
1305    checkpoint41
1306    o re-formatted/added comments in prologues of key subroutines
1307      to work with protex
1308    
1309  checkpoint40  checkpoint40
1310  o moved calc_gs, calc_gt and calc_tr1 back to model/src  o moved calc_gs, calc_gt and calc_tr1 back to model/src
1311  o added FLT (floats) package from Arne along with demo. experiment  o added FLT (floats) package from Arne along with demo. experiment

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