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revision 1.75 by jmc, Thu Jun 20 23:52:03 2002 UTC revision 1.287 by dimitri, Wed May 5 00:23:37 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 pkg/seaice modifications
7      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
8        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
9        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
10      - changed proxy for geostrophic velocity and updated
11        verification/lab_sea/results/* accordingly
12      - removed ADI dynamic solver from pkg/seaice
13      - replaced all occurrences of 1/CSTICE or 1/CSUICE
14        they caused a segmentation fault under certain circumstances
15      - removed unused field WATR
16    o bug fix in exf-package:
17      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
18         now reflect that.
19    o small fixes in the cal-package:
20      - set reference date to first of January for the 'model'-calendar
21      - failing of cal_CheckDate in cal_FullDate now actually results in a
22        warning
23    o small modifications in exf-package to increase flexibility:
24      - change climtempfreeze from a constant to a runtime parameter that
25        is specified in data.exf_clim (default = -1.9)
26      - introduce runtime parameter windstressmax (default = 2.0) that is
27        specified in data.exf
28    o fix in pkg/thsice:
29      - update Evap (Tsf changes) to be consistent with Latent heat flux
30      - maintain snow precipitation unchanged (even if Tsf >=0).
31     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
32    
33    checkpoint52m_post
34    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
35      this does not change any of the results, because myIter=0 in swfrac always
36      lead to jwtype=2 (the default anyway), but the call makes little sense
37      as a default
38    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
39    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
40      atmospheric model (AIM) to use it ; add a "slab ocean" component.
41    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
42    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
43    o extending useSingleCpuIO option to work with new exch2 I/O format
44      - old-style, missing-tile I/O is still accessible by defining CPP
45        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
46    o monitor package can write to NetCDF files and/or STDOUT
47    o fix re-definition bug in MNC_GRID_INIT_ALL()
48    o doc/api_reference added
49      - a framework for building an API Reference Manual using all
50        the "protex" comments embedded in the code
51      - see pkg/generic_advdiff, pkg/mnc for examples
52    o MNC:
53      - make myThid the last argument for all subroutines
54      - new default for the grid files: NO halos
55      - add useMNC and other run-time flags
56      - separate per-file-group handling of the unlimited dimension
57      - early initialization of MNC w/ flags read at the eeboot stage
58        and lookup tables set in initialize_fixed
59      - write all MNC output to a freshly-created directory
60    o thermodynamics sea-ice (thsice) is now tested with testreport.
61    o test exp. advect_cs: use the standard cs32 grid ; update output.
62    o Added functionality to grdchk:
63      pick global i,j,k position (or nearest wet) where to perform check.
64    
65    checkpoint52l_post
66    o new land formulation:
67      a) use ground enthalpy as prognostic variable to ensure exact
68         energy conservation.
69      b) account for water temperature and for latent heat of freezing
70         in all processes (rain, run-off, ground storage)
71      c) compute surface and ground temperature implicitly.
72    o aim_v23 modification for new land model:
73      a) Treat separately land / ocean / sea-ice surface fluxes
74         to allow implicit computation of land & sea-ice surface temp.
75      b) add snow precipitation.
76    checkpoint52l_pre
77    
78    o fix problem (when 1 tile is empty) in min/max monitor.
79    o fix bug in timeAve (u,vZetatave in common block)
80    o no restoring terms under ice for pkg/seaice
81    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
82    o bug fix for pkg/seaice pickups
83    o change MNC call locations and add coordinate attributes
84    o mask vorticity at the corner ; affects global_ocean.cs output
85    o fix ini_curvilinear_grid ; test CS experiments with mpi
86    o aim.5l_cs: modify sea-ice fraction input file ; update output
87    o exf: Adding simple range check routine for exf fields after read
88    
89    checkpoint52k_post
90    o removed top-level directory "diags"
91      - we migrated these functions to pkg/timeave a long time ago
92    o fixed bug introduced in pkg/monitor
93    o accuracy ctrlprec = 32 insuffient for gradient checks using
94      averaged fields (I/O via cost_averages)
95      -> use ctrl.h in active_file*.F to control I/O precision.
96    o paramter list of CALL ADTHE_MAIN_LOOP
97    o added initial do_the_model_io to ecco
98    o set all ...Freq to zero after cost_final
99      taveFreq, dumpFreq, pChkptFreq
100    o MAIN and ECCO differentiability restored
101    
102    checkpoint52j_post
103    o fix nchklev in tamc.h for global_ocean...
104    o Bringing flow and store directives up-to-date
105    o Really weird thing!
106      call do_the_model_io from the_main_loop with parameters
107      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
108      TAF places a faulty re-call of initialise_varia
109      after cost_final call which should not be there!
110    checkpoint52j_pre
111    
112    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
113      error messages
114    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
115    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
116      debug output
117    o modfied mdsio_writefield.F to handle non-global files under exch2
118    o update AIM Cubed-Sphere exp (aim.5l_cs):
119      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
120    o update AIM Equatorial Channel exp:
121      use standard aim_v23 pkg and change the SST fields to be more realistic.
122    o globalFile now works with exch2
123    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
124      mon_vort3.F to make exch2 friendly with >1 tile per cube face
125    o limit timeave output for hi-res integrations
126    
127    checkpoint52i_post
128    o removed CPP_EEOPTIONS.h from verification/*/code
129    o updated the tiling for global_ocean_pressure
130    checkpoint52i_pre
131    
132    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
133      the old pkg/aim).
134    
135    checkpoint52h_pre
136    o shortened offending lines in exch2_send_rx?.template
137    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
138    o genmake2: add build & execute test for NetCDF code
139    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
140      old grid files, moved CPP_EEMACROS.h to pkg/exch2
141    o added useSingleCPUIO flag to monitor.F and mon_out.F
142    o added temporary hack for sea-ice dynamics on the cube:
143      metric terms are ignored and it is assumed that
144      there is no sea-ice on cube faces 1, 2, 4, and 5.
145    
146    checkpoint52f_post
147    o added exch2 cube routines to pkg/exch2
148    o modified hs94.cs-32x32x5 to use it
149    o added new grid files to hs94.cs-32x32x5
150    checkpoint52f_pre
151    
152    checkpoint52e_post
153    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
154      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
155    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
156      to work with implicit vertical advection and AB ;
157    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
158    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
159     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
160    checkpoint52e_pre
161    
162    o fix bug in impldiff when Nr=1 or Nr=2.
163    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
164    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
165    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
166      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
167    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
168    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
169    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
170    
171    checkpoint52d_post
172    o re-tiled many expts to allow comparison in multi-processor mode
173      - updated output accordingly
174      - changed hs94.128x64x5 to use intial T from file rather than use the
175        random number generator
176    o add infrastructure in model routines for fizhi and gridalt packages
177    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
178    o changes to permit hi-res, cubed-sphere, configuration
179      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
180      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
181      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
182        of surface winds for the cube
183      (A verification experiment, based on global_ocean.cs32x15, but with
184       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
185       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
186       complete with example surface forcing files and matlab scripts to look
187       at the output and compare it with that of global_ocean.cs32x15.)
188    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
189       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
190       to conform to the common rule.
191    o check-in the first version of the coupler + interfaces for multi-components
192       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
193       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
194       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
195       - ocean and atmos. share the same horizontal grid (no interpolation).
196       - exchanges between component and coupler is done in forward_step
197    o new verification experiment, cpl_aim+ocn:
198       coupled ocean - AIM atmosphere on cs32 grid.
199    
200    checkpoint52d_pre
201    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
202    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
203    
204    checkpoint52c_post
205    o Fixing OPTIONS files for use of exf:
206      - ALLOW_ECCO not needed
207      - ECCO_CPPOPTIONS.h should not be included from
208        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
209        as has been the case in the past
210      - All cal/exf related options are currently set in
211        single header file. Should remain so until we
212        agree on a consistent new policy.
213    o Removed all CPP options for cal package.
214      cal has no more CPP options.
215    o modified STOREs in GAD_ADVECTION
216    o corrected key comp. for passkey
217    
218    checkpoint52b_post
219    o new version: "thsice" of thermodynamic sea-ice pkg:
220     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
221     - modify fluxes but do not change theta directly;
222     - light cleaning of bulk_force pkg (still needed with thsice).
223     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
224       + output_thsice.txt to test thsice & bulk_force pkgs.
225    o put back grid & coriolis monitor output.
226    checkpoint52b_pre
227    
228    o call "do_the_model_io" at the beginning (=> dump initial state)
229    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
230    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
231      (need info on NUMBER_OF_PTRACERS)
232    o missing PTRACERS headers in some routines
233    o default tamc.h in pkg/autodiff supposed to crash
234      to ensure proper customization
235    
236    checkpoint52a_post
237    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
238      - moved surfaceTendencyTice from pkg/seaice to main code
239      - subroutine FREEZE_SURFACE now limits only surface temperature
240        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
241        => new output.txt for global_ocean.cs32x15 & global_with_exf
242      - keep the old version of FREEZE for backward compatibility;
243        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
244      - corresponding modifs for TAF directives
245    o added surface flux output variables to TIMEAVE_STATVARS
246    o time-averaged output for pkg/ptracers
247    o fix problem with ECCO-related divided adjoint
248      snapshot file was missing some ad-variables,
249      but no warning issued by TAF
250    
251    checkpoint52a_pre
252    o some bug fixes for #undef REAL4_IS_SLOW
253    
254    checkpoint52 = ecco_c52_e35
255    o after testing adjoints of checkpoint51u_post
256    
257    checkpoint51u_post
258    o this is the post-merge tag of the ecco-branch
259      (needs another clean checkout and re-testing)
260    o various natl_box_adjoint configs and results
261      but no input fields
262    o obcs adjoint not yet merged!
263    o adding ECCO global 1x1 and 2x2 degree configs
264    o updated/extended some store directives for seaice
265    o pkg/ecco now containes ecco-specific part of cost function
266    o top level routines the_main_loop, forward_step
267      supersede those in model/src/
268      previous input data.cost now in data.ecco
269      (new namelist ecco_cost_nml)
270    o in ctrl/ cleaned some cross-dependencies and updated CPP options
271    
272    checkpoint51t_post
273    o this is the pre-merge tag of the ecco-branch
274    
275    checkpoint51s_post
276    o cleanup: removed various obsolete #define-s
277    o pkg/grdchk
278      - renamed 'ph-grd 3' to 'grad-res'
279      - merged from ecco-branch
280        (remaining bug fixes for obcs gradient checks)
281      - additional high-precision output for testreport
282        (grep for 'precision_grdchk_result')
283    
284    checkpoint51r_post
285    o cleaned up or removed CPP_OPTIONS.h files
286    o updated results for some of the tests to reflect the new
287      optfiles (-ieee: -O0 instead of -O3)
288    
289    checkpoint51q_post
290    o cd_code:
291      - moved cd_scheme.F -> cd_code_scheme.F
292      - separate read_checkpoint from cd_code_ini_vars.F
293      - separated cd_code part from write_checkpoint
294      - updated AD_SOURCE, generated .flow
295      - added CD_CODE_VARS.h to the_main_loop
296      - Moving cd_code specific store dir.s to pkg/cd_code
297    o ctrl package totally restructured
298      - pack/unpack now optional and decoupled from
299        xx_/adxx_ I/O
300      - ctrl_pack/unpack cleaned
301        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
302      - confined inclusion of AD_CONFIG.h to where necessary.
303    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
304    
305    checkpoint51p_post
306    o create initial cd_code package
307      - WARNING: the initialization of fields within packages
308        is broken because INI_FIELDS (where READ_CHECKPOINT is
309        called) is called *before* PACKAGES_INIT_VARIABLES.
310        This seems to be backwards since
311        1) its important to initially zero the entire field including
312           the "halo" region
313        2) zeroing needs to be done *before* reading pickup info
314           and the pickup call might or might not happen in any
315           particular run
316      - this needs an overhaul for R2
317    o cleanup verification/*/code/GMREDI_OPTIONS.h
318    o cleanup testreport
319    
320    checkpoint51o_post
321    o bringing AD-related verif's up to date with genmake2
322      - carbon/
323      - global_ocean.90x40x15/
324      - hs.94.1x64x5/
325      - (front_relax/ )
326    o (more) consistent directory structure for AD-related verif.'s
327    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
328    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
329    o bug fix in find_alpha.F for MDJWF:
330      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
331        change rho -> rho-rhoConst
332      - replace call find_rho to find_rhonum
333    o initialisation of rFlx extended to full array (required by TAF)
334      and shifted to thermodynamics
335    o removed PTRACERS.h in ptracers routine
336    o added surfacetendencyPtr to S/R parameter list pracers_forcing
337    o Correcting initialisations for fVerU, fVerV.
338    o helping TAF to recognize dependency on kUp for
339      fVerU, fVerV
340    o Replacing delZ by delR in pkg/ctrl/
341    checkpoint51o_pre
342    
343    o undid all of cp51 pending some cleanups and discussion
344    o added the [#include "AD_CONFIG.h"] statement to all files that need
345       it for adjoint/tl #defines
346     o re-worked the build logic in genmake2 to support AD_CONFIG.h
347     o removed tools/genmake since it no longer works
348    
349    checkpoint51n_post
350    o modifications to make FREEZE flux visible to pkg/kpp
351      - moved surfaceTendencyTice from pkg/seaice to main code
352      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
353      - subroutine FREEZE now limits only surface temperature
354        (this means new output.txt for global_ocean.90x40x15,
355         global_ocean.cs32x15, and global_with_exf)
356    o added surface flux output variables to TIMEAVE_STATVARS
357    
358    checkpoint51n_pre
359    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
360    o added [#include "AD_CONFIG.h"] to all files that use the following
361      defines:
362      - ALLOW_ADJOINT_RUN
363      - ALLOW_TANGENTLINEAR_RUN
364      - ALLOW_ECCO_OPTIMIZATION
365    
366    checkpoint51m_post
367    o incorporating changes to get TAMC/TAF working in genmake2
368      - added new TAMC/TAF targets to the Makefile
369      - various cleanups related to package handling
370      - these changes should have no impact on the forward model
371    
372    checkpoint51l_post
373    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
374     - faster algorithm for cal_addtime.F
375     - higher precision arithmetic, where needed
376     - pkg/exf *startdate variables changed from calendar date to
377       model integration time
378    
379    checkpoint51l_pre
380    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
381    o enable to apply restoring on S & T only in a latitude band.
382    o update output (external_forcing_surf modif. change truncation errors)
383       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
384    
385    checkpoint51k_post
386    o change default to: useNHMTerms=.FALSE.
387     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
388       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
389     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
390        exp1, ideal_2D_oce
391     - change data file of oceanic exp (leave the results unchanged for now)
392       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
393    o set gravitySign automatically according to the vertical coordinate used
394      (and change sign: back to "logical" value: +1 when R increases downward)
395    o added an include barrier to the default CPP_OPTIONS.h and
396      removed the #include "PACKAGES_CONFIG.h" from it
397    o fix a bug in mom_fluxform (from chk51j_post)
398    
399    checkpoint51j_post
400    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
401    o adjusted some flow directives (dynamics, thermodynamics)
402    o added cubed-sphere case to test cost function
403    o heckpoint_lev?_directives.h now include
404      pkg-specific directives, whenever those are enabled.
405    o Moving pkg-specific flow directives to corresponding pkg
406      Moving pkg-specific differentiation list to corresponding pkg
407      Moving pkg-specific checkpoint-lev storing to corresponding pkg
408      ---> conventions are
409           - pkg_ad.flow
410           - pkg_ad_diff.list
411           - pkg_ad_check_lev?_dir.h
412    
413    checkpoint51i_post
414    o merge of the branch-genmake2
415      - knowingly breaks the older genmake
416      - automatic generation of all ALLOW_${PKG_NAME} defines
417      - new testreport supersedes older testscript
418    o large number of package inclusion and header cleanups
419    checkpoint51i_pre
420    
421    o new output for adjoin of global ocean vector invariant
422    o fix for checkpoint of thermodynamic seaice and bulk_force
423    o Steph gchem various cleanups
424    
425    checkpoint 51h_pre
426    o fixed some single quotes
427    o modify gchem pkg to be more versatile
428    o modifications to clean up dic pkg
429    o add pkg/cfc
430    
431    checkpoint51g_post
432    o provide links for ARPACK and ADM*TLM
433    o start removing verification/vero/
434    o update AD-related stuff
435      (in particular some IF-statements in model/src/ routines)
436    o adding to verification/global_ocean.90x40x15/ adjoint of
437      vector invariant setup
438    
439    checkpoint51f_post
440    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
441    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
442      of tracer Green's fucntions for ocean inversion project.
443    
444    checkpoint51f_pre
445    o Added on-the-fly spatial interpolation capability
446        "USE_EXF_INTERPOLATION" to pkg/exf.
447      - This is a temporary Cartesian-grid hack until
448        the super-duper ESMF coupler becomes available.
449      - See verification/global_with_exf/README for usage example.
450      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
451        flags and modified pkg/seaice accordingly.
452    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
453        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
454        non-local transport term.
455    
456    checkpoint51e_post
457    o pkg/mom_vecinv:
458      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
459      - add time-ave diagnostic of vorticity advection.
460    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
461    o atmospheric geopotential: - include water vapor effect;
462                                - use p^kappa in p* scaling.
463    o land pkg: read initial state from files.
464    o AIM : add stratospheric drag in the upper level
465    
466    checkpoint51d_post
467    o change function ILNBLNK (=> last non-blank char.) to return zero
468      (instead of the string length) when the string. char is empty
469    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
470    o modif's to restore TAMC compatibility
471      - avoid "_d" constructs in PARAMETER declarations
472      - avoid interrupting lines by comment lines
473    o Use cluster local disks for purely local I/O
474      vs. globally visible disks needed for ctrl stuff
475      (merged from ecco-branch)
476      - new active_file_loc... and mdsio_..._loc routines
477      - affected packages: autodiff, ctrl, grdchk, mdsio
478    
479    checkpoint51c_post
480    o introducing integer flag debugLevel
481      - debLevZero: suppress all output
482      - debLevA: standard
483      - debLevB: equivalent to current debugMode=.TRUE.
484    o introducing pathname variable mdsioLocalDir for mdsio
485      that can be specified at runtime
486      (relevant for cluster I/O to local disk)
487    `
488    >>>checkpoint51b_post
489    adjoint of ptracers
490    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
491    o extended state in checkpoint_lev?, etc.
492    o alternative ctrl/cost with tr1 or ptracer
493    o new comlev1_bibj_ptracers
494    o new ptracers.flow
495    o made ptracers_forcing same as external_forcing_s
496    o added verification for adjoint with ptracers
497      - adm. grdchk fail so far
498      - tlm. grdchk OK
499      - checked tapelev/comlev recomputations: OK
500    <<<checkpoint51b_pre
501    
502    checkpoint51a_post
503    o added code for biogeochemistry package
504      - new pkgs: dic, gchem
505      - new subroutine in ptracers
506    o modify code for biogeo packages
507      - in model/src and pkg/ptracers
508    
509    checkpoint51
510    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
511      - autodiff, ctrl, exf, grdchk, seaice
512      kept separate packages
513      - cost, ecco, obcs
514    o updating verification/internal_wave, verification/lab_sea
515      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
516    
517    checkpoint50i_post
518    o Preparing next differentiable checkpoint and sync
519      of MAIN vs. ecco-branch
520      - 1st step: this one is differentiable
521      - 2nd step: next(! not this) checkpoint will have updated packages
522                  from ecco-branch)
523    
524    checkpoint50h_post
525    o new package "land": provide surface BC for AIM.
526    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
527    o AIM: use true log-P extrapolation for near surface temp (= as in
528        F.Molteni paper) ; update aim.5l_cs output.
529    o New variable in PARM03 for more flexible pickups
530    o somewhat cleaned package initialisation sequence for
531      ctrl/ cost/ ecco/ in packages_... routines
532    
533    checkpoint50g_post
534    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
535      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
536      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
537        made the default because of faster convergence than ADI
538    
539    checkpoint50f_post
540    o exf totally restructured
541      - replaced all exf_set_ routines by one generic exf_set_gen.F
542        and made sure it's still differentiable
543      - split exf_getffields.F into new exf_bulkformulae.F
544      - exf_inscal_/exf_outscal_ suffixes consistent with field names
545      - updated adjoint/makefile and relevant verif. accordingly
546    
547    checkpoint50f_pre
548     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
549          + change Evap over land. (update aim.5l_cs output)
550     o added missing .cvsignores and made uniform across expts
551     o changed configuration of tidal_basin_2d expt
552     o added pkg/debug functions for tracing code in fatal crashes
553     o tidied pkg/monitor to use MONITOR_OPTIONS.h
554     o new fn in pkg/monitor to stop model if solution grows too big
555     o removed lots of single quotes from comments
556    
557    checkpoint50e_post
558    o make KPP work with PTRACERS
559     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
560       nearly a copy of kpp_transport_s
561     - there is no analogue to SurfaceTendencyS, so I have to use
562       gPtr(of the surface layer) instead
563    o add a new platform SunFire+mpi (SunFire 15000) to genmake
564    checkpoint50e_pre
565    
566    checkpoint50d_post
567    o change kpp output from multiple-record state files to single-record state
568      files analogous to write_state.F
569    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
570      analogous to the cg2d-related output.
571    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
572      so that writing to internal file fn (with length 512) fails.
573    checkpoint50d_pre
574    
575    checkpoint50c_post
576    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
577    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
578    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
579    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
580    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
581    
582    checkpoint50c_pre
583    Merging from release1_p13:
584    o bug fix for pkg/seaice dynamic solver
585    o Added SEAICE_initialHEFF to pkg/seaice
586    
587    checkpoint50b_post
588    o store u*,v* in gU,V instead of in guNm1,gvNm1
589    o in order to put the momForcing out of the Adams-Bashforth:
590      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
591      to timestep.F
592    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
593    o re-generate output for highly sensitive test-exp:
594       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
595    
596    checkpoint50b_pre
597    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
598    o corrected CPP option mismatch in exf_Bulk... functions for case
599      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
600    
601    checkpoint50a_post
602    o Bug fix for merging between c50 and KPP.
603      ikey was passed from thermodynamics to kpp_calc via
604      common block rather than being recomputed in kpp_calc,
605      in contradiction with new key itdkey.
606      New key ikppkey created, and tamc.h headers updated.
607    
608    checkpoint50
609    - 2nd step of merge with ecco-branch:
610      merge changes in ecco-branch back into main trunk
611    - bug fix in find_alpha
612    - more storing in gmredi_calc_tensor.F, kpp_routines.F
613    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
614    - merged some sliced AD support routines
615    
616    checkpoint49
617    merged from ecco-branch:
618    o exf:
619      - Enable initialisation of forcing fields to constant
620        (runtime) values.
621      - in exf_getffields.F
622        Reduce i-/j-loop to interior domain, discarding overlaps.
623        That also fixes wrong TAF-key computations for key_1, key_2
624        with bulf formulae.
625      - exf_init.F modify #ifdef for exf_init_evap
626      - exf_getffieldrec.F, ctrl_getrec.F
627        The following INT-usages are not safe:
628          fldsecs  = int(fldsecs/fldperiod)*fldperiod
629          fldcount = int(fldsecs/fldperiod) + 1
630        and were modified.
631    o autodiff: checkpoint_lev...
632      - updated storing for bulk formulae (some arrays were missing)
633      - added state for seaice package
634      - synchronized with main branch
635    o DIVA:
636      Modif.s in
637      - the_main_loop.F
638      - the_model_main.F
639      and added cost_final_restore.F cost_final_store.F
640      o With these changes, it is possible to fully separate
641        the first forward run to compute the cost function (mdthe_main_loop)
642        and adjoint runs over individual DIVA intervals (adthe_main_loop)
643        into separate model executions.
644        This enables better tuning of DIVA to given queue sizes.
645      o Loss of cost function value in consecutive DIVA runs is
646        fixed by storing to 'costfinal' file.
647      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
648        beginning/end of adjoint integration is accounted for.
649      The current changes apply to TAF-1.4.26.
650      TAF has one remaining bug, requiring one manual change
651      (see MITgcm manual).
652    o cal: synchronized between MAIN and ecco-branch
653    
654    checkpoint48i_post
655    o Changes to restore differentiability of code w.r.t. previous tag
656      (mostly adding new routines to make list and replacing
657      pressure by totPhiHyd).
658    o Updated and merged grdchk package
659      - has both ADM and TLM checks
660      - works for single- and multi-proc.
661      - output cleaned
662      - worked successfully for parallel DIVA
663    o genmake:
664      - Adding -platform=SP4
665      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
666    o Modif. for DIVA:
667      ctrl_unpack should not be called in intermediate DIVA interval.
668      (similar thing would apply for active files such as
669      tbar, sbar, psbar, which should not be reinitialised;
670      only relevant for ecco-branch)
671    
672    checkpoint48h_post
673    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
674    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
675    o Added SEAICE_initialHEFF to pkg/seaice
676    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
677    
678    checkpoint48g_post
679    --- EOS:
680    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
681      store total Potential in totPhyHyd for diagnostics & EOS.
682    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
683    --- Pressure/geopotential gradient:
684    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
685    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
686      ( changes results of global_ocean_pressure )
687    o NLFS + z-coord.: add eta*Rho' contribution.
688    o accurate phiHyd when using interface-W at the middle between 2 centers
689     ( changes results of ideal_2D_oce )
690    o includes r* 2nd term in potential gradient.
691    
692    checkpoint48f_post
693    Merging from release1_p12:
694    o Modifications for using pkg/exf with pkg/seaice
695      - improved description of the various forcing configurations
696      - added basic radiation bulk formulae to pkg/exf
697      - units/sign fix for evap computation in exf_getffields.F
698      - updated verification/global_with_exf/results/output.txt
699    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
700      (SBO) core products, including oceanic mass, center-of-mass,
701      angular, and bottom pressure (see pkg/sbo/README.sbo).
702    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
703      to avoid negative values in shallow regions.
704      - updated verification/natl_box/results/output.txt
705      - updated verification/lab_sea/results/output.txt
706    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
707    o Added useSingleCpuIO option (see PARAMS.h).
708    o Updated useSingleCpuIO option in mdsio_writefield.F to
709      work with multi-field files, e.g., for single-file pickup.
710    o pkg/seaice:
711      - bug fix in growth.F: QNET for no shortwave case
712      - added HeffFile for specifying initial sea-ice thickness
713      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
714    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
715      kpp_transport_t.F, forward_step.F, and the_main_loop.F
716    o pkg/seaice:
717      - adjoint-friendly modifications
718      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
719    
720    checkpoint48e_post
721    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
722    o dynamics: change definition of computational domain & adapt mom_fluxform
723      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
724    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
725        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
726        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
727        global_ocean.90x40x15 global_with_exf global_ocean_pressure
728        inverted_barometer solid-body.cs-32x32x1
729      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
730    
731    checkpoint48d_post
732    o in preparation for r*:
733     a) use pre-computed gradient of hydrostatic potential:
734        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
735     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
736        => affects results of glob_oce_pressure (different truncation error)  
737      update output.txt of ideal_2D_oce & global_ocean_pressure
738    
739    checkpoint48d_pre
740    o in preparation for r*:
741      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
742      pass the 2 comp. of the grad. as arguments to momentum S/R.
743      but for the moment, only used if it does not change the results.
744    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
745    
746    checkpoint48c_post
747    Modifications in treatment of initial flux forcing controls
748    to avoid extra storing of flux fields.
749    
750    checkpoint48c_pre
751    o Added tidal_basin_2d experiment (currently 1D!)
752    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
753    
754    checkpoint48b_post
755    o r* coordinate added in #ifdef NONLIN_FRSURF block.
756     (modification to pressure gradient not yet implemented)
757    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
758      (for U & V) that are used for vertical advection of momentum.
759    
760    checkpoint48a_post
761    o In preparation for r*, use temp. array to compute vertical transport
762       in flux-form momentum pkg. => change results of few test-exp.
763      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
764                        lab_sea, natl_box & plume_on_slope
765    
766    checkpoint48
767    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
768    
769    checkpoint47j_post
770    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
771    o moved adexch from forward_step to addummy_in_stepping
772    o added exch in ctrl_map_...
773    o aveFreq.=0. at end of cost_final to avoid overwrite in
774      reverse checkpointing loop
775    o Yet more changes in gmredi:
776      * adgmredi_calc_tensor
777        avoiding all recomputation of gmredi_slope_limit
778      * adgmredi_x/y/rtransport
779        added flag for excessive storing to avoid recomp. of
780        u/v/rtans, dTdx/y/z
781        -> this is not really necessary and very memory-consuming
782      * adgmredi_slope_psi:
783        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
784      * gmredi_slope_limit
785        re-activated full calculation of taperfct for case 'ac02'
786    o updating verification/ adjoints of carbon, global_ocean.90x40x15
787    
788    checkpoint47i_post
789    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
790    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
791      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
792    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
793    o gmredi: fix few bugs.
794    
795    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
796    This will be a good checkpoint to plug into the ecco-branch.
797    o few modif.'s to get latest version adjointed
798      (mainly kick out code in ini_linear_phisurf)
799    o modif's to run adjoint with exactConserv
800    o case GM_BOLUS_ADVEC should be cleaned
801      S/R gmredi_slope_psi should be cleaned
802    o verification/carbon now has exactConserv=.TRUE.
803    
804    checkpoint47g_post
805    o time-average AIM output: becomes independent from statvars time-average
806      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
807    o After TAF bug fix:
808      Tested adjoint of gmredi package.
809      Tests were done with checkpoint47 rather than with latest
810      checkpoint47f_post since the latter is broken for the adjoint
811      verification/carbon/ contains both ADM and TLM gradient checks.
812    Here they are, before they get changed/lost/stolen.
813    Mostly modif.'s to fix numerical sensitivities.
814    Gradient checks OK for
815    - GM_taper_scheme:
816      * clipping
817      * ac02
818      * linear
819      * glw91
820      * dm95
821      * ldd97
822    - GMREDI_OPTIONS:
823      * GM_VISBECK_VARIABLE_K
824      * GM_NON_UNITY_DIAGONAL
825      * GM_EXTRA_DIAGONAL
826      * GM_BOLUS_ADVEC
827    in conjunction with data.gmredi parameters to be checked in
828    in a few minutes under verification/carbon/code/
829    
830    checkpoint47f_post
831    Merging from release1_p10:
832    o modifications for using pkg/exf with pkg/seaice
833      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
834        and SEAICE_EXTERNAL_FLUXES
835      - pkg/exf CPP options EXF_READ_EVAP and
836        EXF_NO_BULK_COMPUTATIONS
837      - usage examples are Experiments 8 and 9 in
838        verification/lab_sea/README
839      - verification/lab_sea default experiment now uses
840        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
841    
842    checkpoint47e_post
843    o created a tag prior to creating a branch
844    
845    checkpoint47d_post
846    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
847      at the bottom boundary had an erroneous half slip boundary condition
848    o added bottom drag and no slip boundary condition capabilities to
849      oceanic pressure coordinates code
850    o added new verification experiment global_ocean_pressure, this experiment is
851      also described in the tutorial section of the manual
852    checkpoint47d_pre
853    
854    checkpoint47c_post
855    o Added a verification experiment for a global cubed-sphere ocean run
856      -  verification/global_ocean.cubed32x32x30
857      -  uses pkg/therm_seaice and pkg/bulk_forcing
858    
859    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
860    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
861      when using P-coordinate; only implemented for atmospheric config.
862    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
863      NOTES: requires option NONLIN_FRSURF to be "#define".
864    o update advect_xz/results/output.txt (left from checkpoint44g_post)
865    
866    checkpoint47b_post
867    Merging from release1_p9:
868    o pkg/seaice
869      - removed GOTO's and added taf directives
870      - double precision constants to reduce the g77 (Linux)
871        to F77 (SGI) differences reported in release1_p8
872    o tools/genmake
873      - added SGI options
874    o verification/testscript
875      - updated to that of checkpoint47a_post
876    o verification/global_ocean.90x40x15/input/eedata
877      - modified for SGI f77 compatibility
878    o verification/lab_sea
879      - added description of sea-ice model
880      - added missing matlab routines
881      - added test of thermodynamics parallelization
882    
883    checkpoint47a_post
884    o new pkg: aim_v23
885     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
886       for now, keep the same surface forcing as before.
887     - Part-Cell implemented into AIM; check that Heat & Water are conserved
888     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
889     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
890    o add diagnostic of surface correction term in monitor output
891    
892    o bulk_force and therm_seaice
893    - Two packages:  bulk_force (Bulk forcing)
894      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
895    - Earlier integration from Stephaine Dutkiewicz
896      and Patrick Heimbach.
897    - Two ifdef statements for compile time,
898       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
899    
900    checkpoint47
901    differentiable version of checkpoint46n_post
902    o bug fix in quasihydrostaticterms
903    o * "clean" adjoint code (in terms of extensive recomputations)
904        can now be obtained for all GMREDI options (i.e. for
905        - GM_VISBECK_VARIABLE_K
906        - GM_NON_UNITY_DIAGONAL
907        - GM_EXTRA_DIAGONAL
908        - GM_BOLUS_ADVEC )
909      * However, wrong gradient check problem remains unsolved.
910      * New CPP options have been introduced for different
911        tapering schemes
912    o external_fields_load now part of differentiation list
913    o pressure needs multiple storing;
914      would be nice to have store_pressure at beginning or
915      end of forward_step, e.g. by having phiHyd global (5-dim.)
916      (NB: pressure is needed for certain cases in find_rho,
917      which is also invoked through convective_adjustment).
918    o recomputations in find_rho for cases
919     'JMD95'/'UNESCO' or 'MDJWF' are OK.
920    o #define ATMOSPHERIC_LOADING should be differentiable
921    o ini_forcing shifted to begining of initialise_varia
922    o Incorporating QNVS line search routines into MITgcm
923      (this is separate code, and therefore not under pkg)
924      lsopt/, optim/
925    o Updated verification/carbon/
926      - #define GM_VISBECK_VARIABLE_K
927      - GM_taper_scheme    = 'ldd97'    
928    
929    checkpoint46n_post
930    Merging from release1_p8:
931    o verification/natl_box:
932      updating new external_fields_load routine
933    o New package: pkg/seaice
934      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
935      The sea-ice code is based on Hibler (1979-1980).
936      Two sea-ice dynamic solvers, ADI and LSR, are included.
937      In addition to computing prognostic sea-ice variables and diagnosing
938      the forcing/external data fields that drive the ocean model,
939      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
940      The implied surface heat flux is then stored in variable
941      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
942      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
943      non-local transport term.  Because this call precedes model
944      thermodynamics, temperature under sea-ice may not be "exactly" at
945      the freezing point by the time theta is dumped or time-averaged.
946      N.B.: fairly large differences in accuracy occur across
947            different platforms/compilers; comparison between
948            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
949            generated output gives:
950       T           S           U           V
951      C D M    c        m  s        m  s        m  s        m  s
952      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
953      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
954      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
955    
956      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
957    o GAD:
958      - generated new common blocks to account for call of
959        same gad routines with differing traceridentities
960        (needed to modify tracerIdentity indices in GAD.h)
961      - generated separate common blocks for case useCubedSphereExchange
962        (Department of Futurology)
963      - parameter lists to gmredi_?transport: added tracerIdentity
964      - added new key indices to tamc.h
965    o external_fields_load:
966      - added this routine to TAF list
967      - needed to make some common blocks global and additional storing
968        along the same lines as exf package (checkpoint_lev?_directives.h)
969    o exf:
970      updated external forcing package
971      - bug fixes carried over from ecco-branch
972        (missing OBCS_OPTIONS.h in two routines)
973      - enable easy to use "no forcing".
974      - added exf I/O for atmospheric loading
975      - added exf I/O for runoff data
976      - transfered scaling between exf <-> MITgcm to exf namelist
977    o Adding new verification experiment global_with_exf.
978      This verification experiment is almost identical to the
979      global_ocean.90x40x15 experiment, except that it uses
980      the exf (and cal) package instead of the
981      external_fields_load routine (cf README file).
982    
983    checkpoint46m_post
984    o modified testscript to return -- when there are no lines of "%MON" output
985    o added new flag "quasiHydrostatic" for QH mode
986      and new routine quasihydrostaticterms()
987    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
988      New routine: mom_u_coriolis_nh()
989    o fixed sign of non-hydrostatic metric terms in u and v equations.
990      Depend on correct sign of gravitySign.
991    o added work.pc* to .cvsignore in aim directories using ifc
992    o introduced flag for controllin non-hydrostatic metric terms
993    o removed gravitySign from PARM04
994    o switched to g77/ifc from pgf77 in aim experiments
995    
996    checkpoint46l_post
997    o made convective adjustment work with pressure coordinates:
998     - changed the direction of k-loop in convective_adjustment.F for the
999       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1000     - adjusted the reference pressure k-index in convective_adjustment.F
1001     - adjusted the convection condition in convect.F (in analogy to
1002       calc_ivdc.F)
1003     - convective_adjustment no longer computes anything on the halos
1004     - removed the warnings about negative salinity from find_rho.F and
1005       find_alpha.F; instead the new routine look_for_neg_salinity, called
1006       at the beginning of find_rho, find_alpha, and find_beta, does a
1007       check of the entire slice, if CPP-option
1008       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1009    checkpoint46l_pre
1010    
1011    checkpoint46k_post
1012    o fixed the verification/global_ocean.90x40x15 experiment:
1013     - new bathymetry (the world according to A., JMC, and M.)
1014     - new initial fields and forcing fields (*.bin files)
1015     - new POLY3.COEFFS (for the next release one should switch to a full
1016       equation of state: JMD95P or MDJWF)
1017     - fixed several errors and redundancies in the data file
1018     - experiment uses looped cells
1019     - added matlab directory with diagnostic scripts for plotting of output
1020    
1021    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1022     - read AIM physics parameters from a file (data.aimphys)
1023     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1024    
1025    checkpoint46j_post
1026    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1027    o move wVel computation at the end of the time step, in S/R integr_continuity
1028    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1029    o update timeave pkg for wVel diagnostic.
1030    checkpoint46j_pre
1031    
1032    checkpoint46i_post
1033    o Clean up AIM package (and keep the results unchanged):
1034      include CPP_OPTION and use IMPLICT NONE in all routines ;
1035      declare all the variables _RL ; use _d 0 for all numerical constants.
1036      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1037    
1038    checkpoint46h_post
1039    o cleaned up the use of rhoNil and rhoConst.
1040      - rhoNil should only appear in the LINEAR equation of state, everywhere
1041        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1042        and the dynamical equations are all divided by rhoConst
1043    o introduced new parameter rhoConstFresh, a reference density of fresh
1044      water, to remove the fresh water flux's dependence on rhoNil. The default
1045      value is 999.8 kg/m^3
1046    o cleanup up external_forcing.F and external_forcing_surf.F
1047      - can now be used by both OCEANIC and OCEANICP
1048    checkpoint46h_pre
1049    
1050     Added code to convert surface volume flux (fresh water) into
1051     a mass flux when using P coordinates in the ocean (OCEANICP).
1052     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1053    
1054    checkpoint46g_post
1055    o Include a new diagnostic variable phiHydLow for the ocean model
1056      - in z-coordinates, it is the bottom pressure anomaly
1057      - in p-coordinates, it is the sea surface elevation
1058      - in both cases, these variable have global drift, reflecting the mass
1059        drift in z-coordinates and the volume drift in p-coordinates
1060      - included time averaging for phiHydLow, be aware of the drift!
1061    o depth-dependent computation of Bo_surf for pressure coordinates
1062      in the ocean (buoyancyRelation='OCEANICP')
1063      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1064        Theta, Salinity, and Pressure in the parameter list. This routine is
1065        presently contained in find_rho.F. This routine does not give the
1066        correct density for 'POLY3', which would be a z-dependent reference
1067        density.
1068    o cleaned up find_rho
1069      - removed obsolete 'eqn' from the parameter list.
1070    o added two new verification experiments: gop and goz
1071      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1072    checkpoint46g_pre
1073    
1074    checkpoint46f_post
1075    o Enable tangent linear (forward mode) gradient checks:
1076      - extended active file handling to g_... files
1077      - added TANGENT_SIMULATION to theSimulationMode
1078      - extended grdchk package accordingly
1079    o added tangent linear setup in verification/carbon/code_ftl
1080    o added adjoint setup in verification/front_relax/code_ad
1081    
1082    checkpoint46e_post
1083    o Added new equation of state -> MDJWF
1084      - EOS of McDougall et al., 2002, JAOT, submitted
1085      - caveat: the equation of state is only valid for a smaller (more
1086        realistic?) range of values than JMD95P/Z and UNESCO
1087      - added masks to the calculation of pressure in store_pressure
1088      - added more check values for density in check_eos (ini_eos.F), some of
1089        the old check values are out of the range of the MDJWF-eos, so don't
1090        expect perfect matches for those
1091    checkpoint46e_pre
1092    
1093    checkpoint46d_post
1094    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1095      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1096      case of pressure coordinates. eosType='JMD95Z' in
1097      combination with buoyancyRelation='OCEANICP' now causes an error.
1098    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1099      in find_alpha/beta.
1100    checkpoint46d_pre
1101    
1102    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1103      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1104    
1105    checkpoint46c_post
1106    o Changes necessary for ocean in p-coordinates
1107     -  Added new buoyancy relation = 'OCEANICP'
1108     -  Added new parameters = gravitySign (this used to be contained inside
1109        the factor dRdZ which I added when we first switched to R coordinates).
1110     X GM/Redi is not compatible (yet)
1111     X bottom drag and no-slip need to be debugged.
1112    checkpoint46c_pre
1113    
1114    checkpoint46b_post
1115    o Added new equation of state -> JMD95Z and JMD95P
1116      - EOS of Jackett and McDougall, 1995, JAOT
1117      - moved all EOS parameters into EOS.h
1118      - new routines ini_eos.F, store_pressure.F
1119    o Added UNESCO EOS, but not recommended because it requires
1120      in-situ temperature (see JMD95)
1121    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1122      unesco.f to be used with POLY3
1123    checkpoint46b_pre
1124    
1125    checkpoint46a_post
1126    o Added (atmospheric) pressure loading
1127      - new field in FFIELDS.h, etc...
1128      - new cpp flag ATMOSPHERIC_LOADING
1129    o Changed hFacC to _hFacC in calc_phi_hyd.F
1130    o Added SHORTWAVE_HEATING to some files for consistency
1131    checkpoint46a_pre
1132    
1133    checkpoint46
1134    further merges from release1_p5
1135    o new ctrl package
1136      - adopted from ECCO environment to enable optimization
1137      - added Eliassen Palm fluxes to controls
1138    o added Eliassen Palm flux controls to gradient check package
1139    o cost package
1140      - Compatible with new ctrl package
1141      - added Eliassen Palm cost hooks
1142      - modif's of existing cost functions
1143    o Adjoint-related bug fixes in kpp:
1144      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1145      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1146    o autodiff package
1147      - flow directives:
1148        + new for S/R do_the_model_io
1149        + enhanced for S/R checkpoint
1150        + new gmredi.flow
1151      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1152        disable adcommon.h/g_common.h by default.
1153      - fixed problem for adjoint of global_max
1154    o modified verification/carbon/
1155    o New setup for adjoint of global_ocean
1156    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1157    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1158    o incorporated hooks for sponge layer code (external_forcing.F)
1159    
1160    checkpoint45d_post
1161    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1162    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1163      (affects plume_on_slope "cg2d" output)
1164    o add new parameter deltaTfreesurf for free-surface time stepping
1165    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1166  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1167  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
1168  o add new flags:  o add new flags:

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