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revision 1.60 by jmc, Sun Feb 10 20:07:14 2002 UTC revision 1.258 by heimbach, Mon Feb 23 19:20:16 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint52k_post
7    o removed top-level directory "diags"
8      - we migrated these functions to pkg/timeave a long time ago
9    o fixed bug introduced in pkg/monitor
10    o accuracy ctrlprec = 32 insuffient for gradient checks using
11      averaged fields (I/O via cost_averages)
12      -> use ctrl.h in active_file*.F to control I/O precision.
13    o paramter list of CALL ADTHE_MAIN_LOOP
14    o added initial do_the_model_io to ecco
15    o set all ...Freq to zero after cost_final
16      taveFreq, dumpFreq, pChkptFreq
17    o MAIN and ECCO differentiability restored
18    
19    checkpoint52j_post
20    o fix nchklev in tamc.h for global_ocean...
21    o Bringing flow and store directives up-to-date
22    o Really weird thing!
23      call do_the_model_io from the_main_loop with parameters
24      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
25      TAF places a faulty re-call of initialise_varia
26      after cost_final call which should not be there!
27    checkpoint52j_pre
28    
29    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
30      error messages
31    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
32    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
33      debug output
34    o modfied mdsio_writefield.F to handle non-global files under exch2
35    o update AIM Cubed-Sphere exp (aim.5l_cs):
36      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
37    o update AIM Equatorial Channel exp:
38      use standard aim_v23 pkg and change the SST fields to be more realistic.
39    o globalFile now works with exch2
40    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
41      mon_vort3.F to make exch2 friendly with >1 tile per cube face
42    o limit timeave output for hi-res integrations
43    
44    checkpoint52i_post
45    o removed CPP_EEOPTIONS.h from verification/*/code
46    o updated the tiling for global_ocean_pressure
47    checkpoint52i_pre
48    
49    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
50      the old pkg/aim).
51    
52    checkpoint52h_pre
53    o shortened offending lines in exch2_send_rx?.template
54    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
55    o genmake2: add build & execute test for NetCDF code
56    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
57      old grid files, moved CPP_EEMACROS.h to pkg/exch2
58    o added useSingleCPUIO flag to monitor.F and mon_out.F
59    o added temporary hack for sea-ice dynamics on the cube:
60      metric terms are ignored and it is assumed that
61      there is no sea-ice on cube faces 1, 2, 4, and 5.
62    
63    checkpoint52f_post
64    o added exch2 cube routines to pkg/exch2
65    o modified hs94.cs-32x32x5 to use it
66    o added new grid files to hs94.cs-32x32x5
67    checkpoint52f_pre
68    
69    checkpoint52e_post
70    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
71      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
72    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
73      to work with implicit vertical advection and AB ;
74    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
75    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
76     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
77    checkpoint52e_pre
78    
79    o fix bug in impldiff when Nr=1 or Nr=2.
80    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
81    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
82    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
83      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
84    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
85    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
86    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
87    
88    checkpoint52d_post
89    o re-tiled many expts to allow comparison in multi-processor mode
90      - updated output accordingly
91      - changed hs94.128x64x5 to use intial T from file rather than use the
92        random number generator
93    o add infrastructure in model routines for fizhi and gridalt packages
94    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
95    o changes to permit hi-res, cubed-sphere, configuration
96      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
97      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
98      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
99        of surface winds for the cube
100      (A verification experiment, based on global_ocean.cs32x15, but with
101       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
102       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
103       complete with example surface forcing files and matlab scripts to look
104       at the output and compare it with that of global_ocean.cs32x15.)
105    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
106       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
107       to conform to the common rule.
108    o check-in the first version of the coupler + interfaces for multi-components
109       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
110       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
111       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
112       - ocean and atmos. share the same horizontal grid (no interpolation).
113       - exchanges between component and coupler is done in forward_step
114    o new verification experiment, cpl_aim+ocn:
115       coupled ocean - AIM atmosphere on cs32 grid.
116    
117    checkpoint52d_pre
118    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
119    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
120    
121    checkpoint52c_post
122    o Fixing OPTIONS files for use of exf:
123      - ALLOW_ECCO not needed
124      - ECCO_CPPOPTIONS.h should not be included from
125        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
126        as has been the case in the past
127      - All cal/exf related options are currently set in
128        single header file. Should remain so until we
129        agree on a consistent new policy.
130    o Removed all CPP options for cal package.
131      cal has no more CPP options.
132    o modified STOREs in GAD_ADVECTION
133    o corrected key comp. for passkey
134    
135    checkpoint52b_post
136    o new version: "thsice" of thermodynamic sea-ice pkg:
137     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
138     - modify fluxes but do not change theta directly;
139     - light cleaning of bulk_force pkg (still needed with thsice).
140     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
141       + output_thsice.txt to test thsice & bulk_force pkgs.
142    o put back grid & coriolis monitor output.
143    checkpoint52b_pre
144    
145    o call "do_the_model_io" at the beginning (=> dump initial state)
146    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
147    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
148      (need info on NUMBER_OF_PTRACERS)
149    o missing PTRACERS headers in some routines
150    o default tamc.h in pkg/autodiff supposed to crash
151      to ensure proper customization
152    
153    checkpoint52a_post
154    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
155      - moved surfaceTendencyTice from pkg/seaice to main code
156      - subroutine FREEZE_SURFACE now limits only surface temperature
157        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
158        => new output.txt for global_ocean.cs32x15 & global_with_exf
159      - keep the old version of FREEZE for backward compatibility;
160        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
161      - corresponding modifs for TAF directives
162    o added surface flux output variables to TIMEAVE_STATVARS
163    o time-averaged output for pkg/ptracers
164    o fix problem with ECCO-related divided adjoint
165      snapshot file was missing some ad-variables,
166      but no warning issued by TAF
167    
168    checkpoint52a_pre
169    o some bug fixes for #undef REAL4_IS_SLOW
170    
171    checkpoint52 = ecco_c52_e35
172    o after testing adjoints of checkpoint51u_post
173    
174    checkpoint51u_post
175    o this is the post-merge tag of the ecco-branch
176      (needs another clean checkout and re-testing)
177    o various natl_box_adjoint configs and results
178      but no input fields
179    o obcs adjoint not yet merged!
180    o adding ECCO global 1x1 and 2x2 degree configs
181    o updated/extended some store directives for seaice
182    o pkg/ecco now containes ecco-specific part of cost function
183    o top level routines the_main_loop, forward_step
184      supersede those in model/src/
185      previous input data.cost now in data.ecco
186      (new namelist ecco_cost_nml)
187    o in ctrl/ cleaned some cross-dependencies and updated CPP options
188    
189    checkpoint51t_post
190    o this is the pre-merge tag of the ecco-branch
191    
192    checkpoint51s_post
193    o cleanup: removed various obsolete #define-s
194    o pkg/grdchk
195      - renamed 'ph-grd 3' to 'grad-res'
196      - merged from ecco-branch
197        (remaining bug fixes for obcs gradient checks)
198      - additional high-precision output for testreport
199        (grep for 'precision_grdchk_result')
200    
201    checkpoint51r_post
202    o cleaned up or removed CPP_OPTIONS.h files
203    o updated results for some of the tests to reflect the new
204      optfiles (-ieee: -O0 instead of -O3)
205    
206    checkpoint51q_post
207    o cd_code:
208      - moved cd_scheme.F -> cd_code_scheme.F
209      - separate read_checkpoint from cd_code_ini_vars.F
210      - separated cd_code part from write_checkpoint
211      - updated AD_SOURCE, generated .flow
212      - added CD_CODE_VARS.h to the_main_loop
213      - Moving cd_code specific store dir.s to pkg/cd_code
214    o ctrl package totally restructured
215      - pack/unpack now optional and decoupled from
216        xx_/adxx_ I/O
217      - ctrl_pack/unpack cleaned
218        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
219      - confined inclusion of AD_CONFIG.h to where necessary.
220    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
221    
222    checkpoint51p_post
223    o create initial cd_code package
224      - WARNING: the initialization of fields within packages
225        is broken because INI_FIELDS (where READ_CHECKPOINT is
226        called) is called *before* PACKAGES_INIT_VARIABLES.
227        This seems to be backwards since
228        1) its important to initially zero the entire field including
229           the "halo" region
230        2) zeroing needs to be done *before* reading pickup info
231           and the pickup call might or might not happen in any
232           particular run
233      - this needs an overhaul for R2
234    o cleanup verification/*/code/GMREDI_OPTIONS.h
235    o cleanup testreport
236    
237    checkpoint51o_post
238    o bringing AD-related verif's up to date with genmake2
239      - carbon/
240      - global_ocean.90x40x15/
241      - hs.94.1x64x5/
242      - (front_relax/ )
243    o (more) consistent directory structure for AD-related verif.'s
244    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
245    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
246    o bug fix in find_alpha.F for MDJWF:
247      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
248        change rho -> rho-rhoConst
249      - replace call find_rho to find_rhonum
250    o initialisation of rFlx extended to full array (required by TAF)
251      and shifted to thermodynamics
252    o removed PTRACERS.h in ptracers routine
253    o added surfacetendencyPtr to S/R parameter list pracers_forcing
254    o Correcting initialisations for fVerU, fVerV.
255    o helping TAF to recognize dependency on kUp for
256      fVerU, fVerV
257    o Replacing delZ by delR in pkg/ctrl/
258    checkpoint51o_pre
259    
260    o undid all of cp51 pending some cleanups and discussion
261    o added the [#include "AD_CONFIG.h"] statement to all files that need
262       it for adjoint/tl #defines
263     o re-worked the build logic in genmake2 to support AD_CONFIG.h
264     o removed tools/genmake since it no longer works
265    
266    checkpoint51n_post
267    o modifications to make FREEZE flux visible to pkg/kpp
268      - moved surfaceTendencyTice from pkg/seaice to main code
269      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
270      - subroutine FREEZE now limits only surface temperature
271        (this means new output.txt for global_ocean.90x40x15,
272         global_ocean.cs32x15, and global_with_exf)
273    o added surface flux output variables to TIMEAVE_STATVARS
274    
275    checkpoint51n_pre
276    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
277    o added [#include "AD_CONFIG.h"] to all files that use the following
278      defines:
279      - ALLOW_ADJOINT_RUN
280      - ALLOW_TANGENTLINEAR_RUN
281      - ALLOW_ECCO_OPTIMIZATION
282    
283    checkpoint51m_post
284    o incorporating changes to get TAMC/TAF working in genmake2
285      - added new TAMC/TAF targets to the Makefile
286      - various cleanups related to package handling
287      - these changes should have no impact on the forward model
288    
289    checkpoint51l_post
290    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
291     - faster algorithm for cal_addtime.F
292     - higher precision arithmetic, where needed
293     - pkg/exf *startdate variables changed from calendar date to
294       model integration time
295    
296    checkpoint51l_pre
297    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
298    o enable to apply restoring on S & T only in a latitude band.
299    o update output (external_forcing_surf modif. change truncation errors)
300       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
301    
302    checkpoint51k_post
303    o change default to: useNHMTerms=.FALSE.
304     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
305       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
306     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
307        exp1, ideal_2D_oce
308     - change data file of oceanic exp (leave the results unchanged for now)
309       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
310    o set gravitySign automatically according to the vertical coordinate used
311      (and change sign: back to "logical" value: +1 when R increases downward)
312    o added an include barrier to the default CPP_OPTIONS.h and
313      removed the #include "PACKAGES_CONFIG.h" from it
314    o fix a bug in mom_fluxform (from chk51j_post)
315    
316    checkpoint51j_post
317    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
318    o adjusted some flow directives (dynamics, thermodynamics)
319    o added cubed-sphere case to test cost function
320    o heckpoint_lev?_directives.h now include
321      pkg-specific directives, whenever those are enabled.
322    o Moving pkg-specific flow directives to corresponding pkg
323      Moving pkg-specific differentiation list to corresponding pkg
324      Moving pkg-specific checkpoint-lev storing to corresponding pkg
325      ---> conventions are
326           - pkg_ad.flow
327           - pkg_ad_diff.list
328           - pkg_ad_check_lev?_dir.h
329    
330    checkpoint51i_post
331    o merge of the branch-genmake2
332      - knowingly breaks the older genmake
333      - automatic generation of all ALLOW_${PKG_NAME} defines
334      - new testreport supersedes older testscript
335    o large number of package inclusion and header cleanups
336    checkpoint51i_pre
337    
338    o new output for adjoin of global ocean vector invariant
339    o fix for checkpoint of thermodynamic seaice and bulk_force
340    o Steph gchem various cleanups
341    
342    checkpoint 51h_pre
343    o fixed some single quotes
344    o modify gchem pkg to be more versatile
345    o modifications to clean up dic pkg
346    o add pkg/cfc
347    
348    checkpoint51g_post
349    o provide links for ARPACK and ADM*TLM
350    o start removing verification/vero/
351    o update AD-related stuff
352      (in particular some IF-statements in model/src/ routines)
353    o adding to verification/global_ocean.90x40x15/ adjoint of
354      vector invariant setup
355    
356    checkpoint51f_post
357    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
358    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
359      of tracer Green's fucntions for ocean inversion project.
360    
361    checkpoint51f_pre
362    o Added on-the-fly spatial interpolation capability
363        "USE_EXF_INTERPOLATION" to pkg/exf.
364      - This is a temporary Cartesian-grid hack until
365        the super-duper ESMF coupler becomes available.
366      - See verification/global_with_exf/README for usage example.
367      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
368        flags and modified pkg/seaice accordingly.
369    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
370        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
371        non-local transport term.
372    
373    checkpoint51e_post
374    o pkg/mom_vecinv:
375      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
376      - add time-ave diagnostic of vorticity advection.
377    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
378    o atmospheric geopotential: - include water vapor effect;
379                                - use p^kappa in p* scaling.
380    o land pkg: read initial state from files.
381    o AIM : add stratospheric drag in the upper level
382    
383    checkpoint51d_post
384    o change function ILNBLNK (=> last non-blank char.) to return zero
385      (instead of the string length) when the string. char is empty
386    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
387    o modif's to restore TAMC compatibility
388      - avoid "_d" constructs in PARAMETER declarations
389      - avoid interrupting lines by comment lines
390    o Use cluster local disks for purely local I/O
391      vs. globally visible disks needed for ctrl stuff
392      (merged from ecco-branch)
393      - new active_file_loc... and mdsio_..._loc routines
394      - affected packages: autodiff, ctrl, grdchk, mdsio
395    
396    checkpoint51c_post
397    o introducing integer flag debugLevel
398      - debLevZero: suppress all output
399      - debLevA: standard
400      - debLevB: equivalent to current debugMode=.TRUE.
401    o introducing pathname variable mdsioLocalDir for mdsio
402      that can be specified at runtime
403      (relevant for cluster I/O to local disk)
404    `
405    >>>checkpoint51b_post
406    adjoint of ptracers
407    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
408    o extended state in checkpoint_lev?, etc.
409    o alternative ctrl/cost with tr1 or ptracer
410    o new comlev1_bibj_ptracers
411    o new ptracers.flow
412    o made ptracers_forcing same as external_forcing_s
413    o added verification for adjoint with ptracers
414      - adm. grdchk fail so far
415      - tlm. grdchk OK
416      - checked tapelev/comlev recomputations: OK
417    <<<checkpoint51b_pre
418    
419    checkpoint51a_post
420    o added code for biogeochemistry package
421      - new pkgs: dic, gchem
422      - new subroutine in ptracers
423    o modify code for biogeo packages
424      - in model/src and pkg/ptracers
425    
426    checkpoint51
427    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
428      - autodiff, ctrl, exf, grdchk, seaice
429      kept separate packages
430      - cost, ecco, obcs
431    o updating verification/internal_wave, verification/lab_sea
432      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
433    
434    checkpoint50i_post
435    o Preparing next differentiable checkpoint and sync
436      of MAIN vs. ecco-branch
437      - 1st step: this one is differentiable
438      - 2nd step: next(! not this) checkpoint will have updated packages
439                  from ecco-branch)
440    
441    checkpoint50h_post
442    o new package "land": provide surface BC for AIM.
443    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
444    o AIM: use true log-P extrapolation for near surface temp (= as in
445        F.Molteni paper) ; update aim.5l_cs output.
446    o New variable in PARM03 for more flexible pickups
447    o somewhat cleaned package initialisation sequence for
448      ctrl/ cost/ ecco/ in packages_... routines
449    
450    checkpoint50g_post
451    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
452      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
453      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
454        made the default because of faster convergence than ADI
455    
456    checkpoint50f_post
457    o exf totally restructured
458      - replaced all exf_set_ routines by one generic exf_set_gen.F
459        and made sure it's still differentiable
460      - split exf_getffields.F into new exf_bulkformulae.F
461      - exf_inscal_/exf_outscal_ suffixes consistent with field names
462      - updated adjoint/makefile and relevant verif. accordingly
463    
464    checkpoint50f_pre
465     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
466          + change Evap over land. (update aim.5l_cs output)
467     o added missing .cvsignores and made uniform across expts
468     o changed configuration of tidal_basin_2d expt
469     o added pkg/debug functions for tracing code in fatal crashes
470     o tidied pkg/monitor to use MONITOR_OPTIONS.h
471     o new fn in pkg/monitor to stop model if solution grows too big
472     o removed lots of single quotes from comments
473    
474    checkpoint50e_post
475    o make KPP work with PTRACERS
476     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
477       nearly a copy of kpp_transport_s
478     - there is no analogue to SurfaceTendencyS, so I have to use
479       gPtr(of the surface layer) instead
480    o add a new platform SunFire+mpi (SunFire 15000) to genmake
481    checkpoint50e_pre
482    
483    checkpoint50d_post
484    o change kpp output from multiple-record state files to single-record state
485      files analogous to write_state.F
486    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
487      analogous to the cg2d-related output.
488    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
489      so that writing to internal file fn (with length 512) fails.
490    checkpoint50d_pre
491    
492    checkpoint50c_post
493    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
494    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
495    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
496    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
497    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
498    
499    checkpoint50c_pre
500    Merging from release1_p13:
501    o bug fix for pkg/seaice dynamic solver
502    o Added SEAICE_initialHEFF to pkg/seaice
503    
504    checkpoint50b_post
505    o store u*,v* in gU,V instead of in guNm1,gvNm1
506    o in order to put the momForcing out of the Adams-Bashforth:
507      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
508      to timestep.F
509    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
510    o re-generate output for highly sensitive test-exp:
511       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
512    
513    checkpoint50b_pre
514    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
515    o corrected CPP option mismatch in exf_Bulk... functions for case
516      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
517    
518    checkpoint50a_post
519    o Bug fix for merging between c50 and KPP.
520      ikey was passed from thermodynamics to kpp_calc via
521      common block rather than being recomputed in kpp_calc,
522      in contradiction with new key itdkey.
523      New key ikppkey created, and tamc.h headers updated.
524    
525    checkpoint50
526    - 2nd step of merge with ecco-branch:
527      merge changes in ecco-branch back into main trunk
528    - bug fix in find_alpha
529    - more storing in gmredi_calc_tensor.F, kpp_routines.F
530    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
531    - merged some sliced AD support routines
532    
533    checkpoint49
534    merged from ecco-branch:
535    o exf:
536      - Enable initialisation of forcing fields to constant
537        (runtime) values.
538      - in exf_getffields.F
539        Reduce i-/j-loop to interior domain, discarding overlaps.
540        That also fixes wrong TAF-key computations for key_1, key_2
541        with bulf formulae.
542      - exf_init.F modify #ifdef for exf_init_evap
543      - exf_getffieldrec.F, ctrl_getrec.F
544        The following INT-usages are not safe:
545          fldsecs  = int(fldsecs/fldperiod)*fldperiod
546          fldcount = int(fldsecs/fldperiod) + 1
547        and were modified.
548    o autodiff: checkpoint_lev...
549      - updated storing for bulk formulae (some arrays were missing)
550      - added state for seaice package
551      - synchronized with main branch
552    o DIVA:
553      Modif.s in
554      - the_main_loop.F
555      - the_model_main.F
556      and added cost_final_restore.F cost_final_store.F
557      o With these changes, it is possible to fully separate
558        the first forward run to compute the cost function (mdthe_main_loop)
559        and adjoint runs over individual DIVA intervals (adthe_main_loop)
560        into separate model executions.
561        This enables better tuning of DIVA to given queue sizes.
562      o Loss of cost function value in consecutive DIVA runs is
563        fixed by storing to 'costfinal' file.
564      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
565        beginning/end of adjoint integration is accounted for.
566      The current changes apply to TAF-1.4.26.
567      TAF has one remaining bug, requiring one manual change
568      (see MITgcm manual).
569    o cal: synchronized between MAIN and ecco-branch
570    
571    checkpoint48i_post
572    o Changes to restore differentiability of code w.r.t. previous tag
573      (mostly adding new routines to make list and replacing
574      pressure by totPhiHyd).
575    o Updated and merged grdchk package
576      - has both ADM and TLM checks
577      - works for single- and multi-proc.
578      - output cleaned
579      - worked successfully for parallel DIVA
580    o genmake:
581      - Adding -platform=SP4
582      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
583    o Modif. for DIVA:
584      ctrl_unpack should not be called in intermediate DIVA interval.
585      (similar thing would apply for active files such as
586      tbar, sbar, psbar, which should not be reinitialised;
587      only relevant for ecco-branch)
588    
589    checkpoint48h_post
590    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
591    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
592    o Added SEAICE_initialHEFF to pkg/seaice
593    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
594    
595    checkpoint48g_post
596    --- EOS:
597    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
598      store total Potential in totPhyHyd for diagnostics & EOS.
599    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
600    --- Pressure/geopotential gradient:
601    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
602    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
603      ( changes results of global_ocean_pressure )
604    o NLFS + z-coord.: add eta*Rho' contribution.
605    o accurate phiHyd when using interface-W at the middle between 2 centers
606     ( changes results of ideal_2D_oce )
607    o includes r* 2nd term in potential gradient.
608    
609    checkpoint48f_post
610    Merging from release1_p12:
611    o Modifications for using pkg/exf with pkg/seaice
612      - improved description of the various forcing configurations
613      - added basic radiation bulk formulae to pkg/exf
614      - units/sign fix for evap computation in exf_getffields.F
615      - updated verification/global_with_exf/results/output.txt
616    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
617      (SBO) core products, including oceanic mass, center-of-mass,
618      angular, and bottom pressure (see pkg/sbo/README.sbo).
619    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
620      to avoid negative values in shallow regions.
621      - updated verification/natl_box/results/output.txt
622      - updated verification/lab_sea/results/output.txt
623    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
624    o Added useSingleCpuIO option (see PARAMS.h).
625    o Updated useSingleCpuIO option in mdsio_writefield.F to
626      work with multi-field files, e.g., for single-file pickup.
627    o pkg/seaice:
628      - bug fix in growth.F: QNET for no shortwave case
629      - added HeffFile for specifying initial sea-ice thickness
630      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
631    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
632      kpp_transport_t.F, forward_step.F, and the_main_loop.F
633    o pkg/seaice:
634      - adjoint-friendly modifications
635      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
636    
637    checkpoint48e_post
638    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
639    o dynamics: change definition of computational domain & adapt mom_fluxform
640      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
641    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
642        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
643        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
644        global_ocean.90x40x15 global_with_exf global_ocean_pressure
645        inverted_barometer solid-body.cs-32x32x1
646      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
647    
648    checkpoint48d_post
649    o in preparation for r*:
650     a) use pre-computed gradient of hydrostatic potential:
651        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
652     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
653        => affects results of glob_oce_pressure (different truncation error)  
654      update output.txt of ideal_2D_oce & global_ocean_pressure
655    
656    checkpoint48d_pre
657    o in preparation for r*:
658      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
659      pass the 2 comp. of the grad. as arguments to momentum S/R.
660      but for the moment, only used if it does not change the results.
661    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
662    
663    checkpoint48c_post
664    Modifications in treatment of initial flux forcing controls
665    to avoid extra storing of flux fields.
666    
667    checkpoint48c_pre
668    o Added tidal_basin_2d experiment (currently 1D!)
669    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
670    
671    checkpoint48b_post
672    o r* coordinate added in #ifdef NONLIN_FRSURF block.
673     (modification to pressure gradient not yet implemented)
674    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
675      (for U & V) that are used for vertical advection of momentum.
676    
677    checkpoint48a_post
678    o In preparation for r*, use temp. array to compute vertical transport
679       in flux-form momentum pkg. => change results of few test-exp.
680      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
681                        lab_sea, natl_box & plume_on_slope
682    
683    checkpoint48
684    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
685    
686    checkpoint47j_post
687    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
688    o moved adexch from forward_step to addummy_in_stepping
689    o added exch in ctrl_map_...
690    o aveFreq.=0. at end of cost_final to avoid overwrite in
691      reverse checkpointing loop
692    o Yet more changes in gmredi:
693      * adgmredi_calc_tensor
694        avoiding all recomputation of gmredi_slope_limit
695      * adgmredi_x/y/rtransport
696        added flag for excessive storing to avoid recomp. of
697        u/v/rtans, dTdx/y/z
698        -> this is not really necessary and very memory-consuming
699      * adgmredi_slope_psi:
700        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
701      * gmredi_slope_limit
702        re-activated full calculation of taperfct for case 'ac02'
703    o updating verification/ adjoints of carbon, global_ocean.90x40x15
704    
705    checkpoint47i_post
706    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
707    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
708      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
709    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
710    o gmredi: fix few bugs.
711    
712    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
713    This will be a good checkpoint to plug into the ecco-branch.
714    o few modif.'s to get latest version adjointed
715      (mainly kick out code in ini_linear_phisurf)
716    o modif's to run adjoint with exactConserv
717    o case GM_BOLUS_ADVEC should be cleaned
718      S/R gmredi_slope_psi should be cleaned
719    o verification/carbon now has exactConserv=.TRUE.
720    
721    checkpoint47g_post
722    o time-average AIM output: becomes independent from statvars time-average
723      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
724    o After TAF bug fix:
725      Tested adjoint of gmredi package.
726      Tests were done with checkpoint47 rather than with latest
727      checkpoint47f_post since the latter is broken for the adjoint
728      verification/carbon/ contains both ADM and TLM gradient checks.
729    Here they are, before they get changed/lost/stolen.
730    Mostly modif.'s to fix numerical sensitivities.
731    Gradient checks OK for
732    - GM_taper_scheme:
733      * clipping
734      * ac02
735      * linear
736      * glw91
737      * dm95
738      * ldd97
739    - GMREDI_OPTIONS:
740      * GM_VISBECK_VARIABLE_K
741      * GM_NON_UNITY_DIAGONAL
742      * GM_EXTRA_DIAGONAL
743      * GM_BOLUS_ADVEC
744    in conjunction with data.gmredi parameters to be checked in
745    in a few minutes under verification/carbon/code/
746    
747    checkpoint47f_post
748    Merging from release1_p10:
749    o modifications for using pkg/exf with pkg/seaice
750      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
751        and SEAICE_EXTERNAL_FLUXES
752      - pkg/exf CPP options EXF_READ_EVAP and
753        EXF_NO_BULK_COMPUTATIONS
754      - usage examples are Experiments 8 and 9 in
755        verification/lab_sea/README
756      - verification/lab_sea default experiment now uses
757        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
758    
759    checkpoint47e_post
760    o created a tag prior to creating a branch
761    
762    checkpoint47d_post
763    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
764      at the bottom boundary had an erroneous half slip boundary condition
765    o added bottom drag and no slip boundary condition capabilities to
766      oceanic pressure coordinates code
767    o added new verification experiment global_ocean_pressure, this experiment is
768      also described in the tutorial section of the manual
769    checkpoint47d_pre
770    
771    checkpoint47c_post
772    o Added a verification experiment for a global cubed-sphere ocean run
773      -  verification/global_ocean.cubed32x32x30
774      -  uses pkg/therm_seaice and pkg/bulk_forcing
775    
776    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
777    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
778      when using P-coordinate; only implemented for atmospheric config.
779    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
780      NOTES: requires option NONLIN_FRSURF to be "#define".
781    o update advect_xz/results/output.txt (left from checkpoint44g_post)
782    
783    checkpoint47b_post
784    Merging from release1_p9:
785    o pkg/seaice
786      - removed GOTO's and added taf directives
787      - double precision constants to reduce the g77 (Linux)
788        to F77 (SGI) differences reported in release1_p8
789    o tools/genmake
790      - added SGI options
791    o verification/testscript
792      - updated to that of checkpoint47a_post
793    o verification/global_ocean.90x40x15/input/eedata
794      - modified for SGI f77 compatibility
795    o verification/lab_sea
796      - added description of sea-ice model
797      - added missing matlab routines
798      - added test of thermodynamics parallelization
799    
800    checkpoint47a_post
801    o new pkg: aim_v23
802     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
803       for now, keep the same surface forcing as before.
804     - Part-Cell implemented into AIM; check that Heat & Water are conserved
805     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
806     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
807    o add diagnostic of surface correction term in monitor output
808    
809    o bulk_force and therm_seaice
810    - Two packages:  bulk_force (Bulk forcing)
811      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
812    - Earlier integration from Stephaine Dutkiewicz
813      and Patrick Heimbach.
814    - Two ifdef statements for compile time,
815       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
816    
817    checkpoint47
818    differentiable version of checkpoint46n_post
819    o bug fix in quasihydrostaticterms
820    o * "clean" adjoint code (in terms of extensive recomputations)
821        can now be obtained for all GMREDI options (i.e. for
822        - GM_VISBECK_VARIABLE_K
823        - GM_NON_UNITY_DIAGONAL
824        - GM_EXTRA_DIAGONAL
825        - GM_BOLUS_ADVEC )
826      * However, wrong gradient check problem remains unsolved.
827      * New CPP options have been introduced for different
828        tapering schemes
829    o external_fields_load now part of differentiation list
830    o pressure needs multiple storing;
831      would be nice to have store_pressure at beginning or
832      end of forward_step, e.g. by having phiHyd global (5-dim.)
833      (NB: pressure is needed for certain cases in find_rho,
834      which is also invoked through convective_adjustment).
835    o recomputations in find_rho for cases
836     'JMD95'/'UNESCO' or 'MDJWF' are OK.
837    o #define ATMOSPHERIC_LOADING should be differentiable
838    o ini_forcing shifted to begining of initialise_varia
839    o Incorporating QNVS line search routines into MITgcm
840      (this is separate code, and therefore not under pkg)
841      lsopt/, optim/
842    o Updated verification/carbon/
843      - #define GM_VISBECK_VARIABLE_K
844      - GM_taper_scheme    = 'ldd97'    
845    
846    checkpoint46n_post
847    Merging from release1_p8:
848    o verification/natl_box:
849      updating new external_fields_load routine
850    o New package: pkg/seaice
851      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
852      The sea-ice code is based on Hibler (1979-1980).
853      Two sea-ice dynamic solvers, ADI and LSR, are included.
854      In addition to computing prognostic sea-ice variables and diagnosing
855      the forcing/external data fields that drive the ocean model,
856      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
857      The implied surface heat flux is then stored in variable
858      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
859      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
860      non-local transport term.  Because this call precedes model
861      thermodynamics, temperature under sea-ice may not be "exactly" at
862      the freezing point by the time theta is dumped or time-averaged.
863      N.B.: fairly large differences in accuracy occur across
864            different platforms/compilers; comparison between
865            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
866            generated output gives:
867       T           S           U           V
868      C D M    c        m  s        m  s        m  s        m  s
869      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
870      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
871      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
872    
873      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
874    o GAD:
875      - generated new common blocks to account for call of
876        same gad routines with differing traceridentities
877        (needed to modify tracerIdentity indices in GAD.h)
878      - generated separate common blocks for case useCubedSphereExchange
879        (Department of Futurology)
880      - parameter lists to gmredi_?transport: added tracerIdentity
881      - added new key indices to tamc.h
882    o external_fields_load:
883      - added this routine to TAF list
884      - needed to make some common blocks global and additional storing
885        along the same lines as exf package (checkpoint_lev?_directives.h)
886    o exf:
887      updated external forcing package
888      - bug fixes carried over from ecco-branch
889        (missing OBCS_OPTIONS.h in two routines)
890      - enable easy to use "no forcing".
891      - added exf I/O for atmospheric loading
892      - added exf I/O for runoff data
893      - transfered scaling between exf <-> MITgcm to exf namelist
894    o Adding new verification experiment global_with_exf.
895      This verification experiment is almost identical to the
896      global_ocean.90x40x15 experiment, except that it uses
897      the exf (and cal) package instead of the
898      external_fields_load routine (cf README file).
899    
900    checkpoint46m_post
901    o modified testscript to return -- when there are no lines of "%MON" output
902    o added new flag "quasiHydrostatic" for QH mode
903      and new routine quasihydrostaticterms()
904    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
905      New routine: mom_u_coriolis_nh()
906    o fixed sign of non-hydrostatic metric terms in u and v equations.
907      Depend on correct sign of gravitySign.
908    o added work.pc* to .cvsignore in aim directories using ifc
909    o introduced flag for controllin non-hydrostatic metric terms
910    o removed gravitySign from PARM04
911    o switched to g77/ifc from pgf77 in aim experiments
912    
913    checkpoint46l_post
914    o made convective adjustment work with pressure coordinates:
915     - changed the direction of k-loop in convective_adjustment.F for the
916       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
917     - adjusted the reference pressure k-index in convective_adjustment.F
918     - adjusted the convection condition in convect.F (in analogy to
919       calc_ivdc.F)
920     - convective_adjustment no longer computes anything on the halos
921     - removed the warnings about negative salinity from find_rho.F and
922       find_alpha.F; instead the new routine look_for_neg_salinity, called
923       at the beginning of find_rho, find_alpha, and find_beta, does a
924       check of the entire slice, if CPP-option
925       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
926    checkpoint46l_pre
927    
928    checkpoint46k_post
929    o fixed the verification/global_ocean.90x40x15 experiment:
930     - new bathymetry (the world according to A., JMC, and M.)
931     - new initial fields and forcing fields (*.bin files)
932     - new POLY3.COEFFS (for the next release one should switch to a full
933       equation of state: JMD95P or MDJWF)
934     - fixed several errors and redundancies in the data file
935     - experiment uses looped cells
936     - added matlab directory with diagnostic scripts for plotting of output
937    
938    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
939     - read AIM physics parameters from a file (data.aimphys)
940     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
941    
942    checkpoint46j_post
943    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
944    o move wVel computation at the end of the time step, in S/R integr_continuity
945    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
946    o update timeave pkg for wVel diagnostic.
947    checkpoint46j_pre
948    
949    checkpoint46i_post
950    o Clean up AIM package (and keep the results unchanged):
951      include CPP_OPTION and use IMPLICT NONE in all routines ;
952      declare all the variables _RL ; use _d 0 for all numerical constants.
953      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
954    
955    checkpoint46h_post
956    o cleaned up the use of rhoNil and rhoConst.
957      - rhoNil should only appear in the LINEAR equation of state, everywhere
958        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
959        and the dynamical equations are all divided by rhoConst
960    o introduced new parameter rhoConstFresh, a reference density of fresh
961      water, to remove the fresh water flux's dependence on rhoNil. The default
962      value is 999.8 kg/m^3
963    o cleanup up external_forcing.F and external_forcing_surf.F
964      - can now be used by both OCEANIC and OCEANICP
965    checkpoint46h_pre
966    
967     Added code to convert surface volume flux (fresh water) into
968     a mass flux when using P coordinates in the ocean (OCEANICP).
969     Note: It assumes you have set rho0=rhoConst=density of fresh water.
970    
971    checkpoint46g_post
972    o Include a new diagnostic variable phiHydLow for the ocean model
973      - in z-coordinates, it is the bottom pressure anomaly
974      - in p-coordinates, it is the sea surface elevation
975      - in both cases, these variable have global drift, reflecting the mass
976        drift in z-coordinates and the volume drift in p-coordinates
977      - included time averaging for phiHydLow, be aware of the drift!
978    o depth-dependent computation of Bo_surf for pressure coordinates
979      in the ocean (buoyancyRelation='OCEANICP')
980      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
981        Theta, Salinity, and Pressure in the parameter list. This routine is
982        presently contained in find_rho.F. This routine does not give the
983        correct density for 'POLY3', which would be a z-dependent reference
984        density.
985    o cleaned up find_rho
986      - removed obsolete 'eqn' from the parameter list.
987    o added two new verification experiments: gop and goz
988      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
989    checkpoint46g_pre
990    
991    checkpoint46f_post
992    o Enable tangent linear (forward mode) gradient checks:
993      - extended active file handling to g_... files
994      - added TANGENT_SIMULATION to theSimulationMode
995      - extended grdchk package accordingly
996    o added tangent linear setup in verification/carbon/code_ftl
997    o added adjoint setup in verification/front_relax/code_ad
998    
999    checkpoint46e_post
1000    o Added new equation of state -> MDJWF
1001      - EOS of McDougall et al., 2002, JAOT, submitted
1002      - caveat: the equation of state is only valid for a smaller (more
1003        realistic?) range of values than JMD95P/Z and UNESCO
1004      - added masks to the calculation of pressure in store_pressure
1005      - added more check values for density in check_eos (ini_eos.F), some of
1006        the old check values are out of the range of the MDJWF-eos, so don't
1007        expect perfect matches for those
1008    checkpoint46e_pre
1009    
1010    checkpoint46d_post
1011    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1012      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1013      case of pressure coordinates. eosType='JMD95Z' in
1014      combination with buoyancyRelation='OCEANICP' now causes an error.
1015    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1016      in find_alpha/beta.
1017    checkpoint46d_pre
1018    
1019    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1020      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1021    
1022    checkpoint46c_post
1023    o Changes necessary for ocean in p-coordinates
1024     -  Added new buoyancy relation = 'OCEANICP'
1025     -  Added new parameters = gravitySign (this used to be contained inside
1026        the factor dRdZ which I added when we first switched to R coordinates).
1027     X GM/Redi is not compatible (yet)
1028     X bottom drag and no-slip need to be debugged.
1029    checkpoint46c_pre
1030    
1031    checkpoint46b_post
1032    o Added new equation of state -> JMD95Z and JMD95P
1033      - EOS of Jackett and McDougall, 1995, JAOT
1034      - moved all EOS parameters into EOS.h
1035      - new routines ini_eos.F, store_pressure.F
1036    o Added UNESCO EOS, but not recommended because it requires
1037      in-situ temperature (see JMD95)
1038    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1039      unesco.f to be used with POLY3
1040    checkpoint46b_pre
1041    
1042    checkpoint46a_post
1043    o Added (atmospheric) pressure loading
1044      - new field in FFIELDS.h, etc...
1045      - new cpp flag ATMOSPHERIC_LOADING
1046    o Changed hFacC to _hFacC in calc_phi_hyd.F
1047    o Added SHORTWAVE_HEATING to some files for consistency
1048    checkpoint46a_pre
1049    
1050    checkpoint46
1051    further merges from release1_p5
1052    o new ctrl package
1053      - adopted from ECCO environment to enable optimization
1054      - added Eliassen Palm fluxes to controls
1055    o added Eliassen Palm flux controls to gradient check package
1056    o cost package
1057      - Compatible with new ctrl package
1058      - added Eliassen Palm cost hooks
1059      - modif's of existing cost functions
1060    o Adjoint-related bug fixes in kpp:
1061      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1062      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1063    o autodiff package
1064      - flow directives:
1065        + new for S/R do_the_model_io
1066        + enhanced for S/R checkpoint
1067        + new gmredi.flow
1068      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1069        disable adcommon.h/g_common.h by default.
1070      - fixed problem for adjoint of global_max
1071    o modified verification/carbon/
1072    o New setup for adjoint of global_ocean
1073    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1074    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1075    o incorporated hooks for sponge layer code (external_forcing.F)
1076    
1077    checkpoint45d_post
1078    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1079    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1080      (affects plume_on_slope "cg2d" output)
1081    o add new parameter deltaTfreesurf for free-surface time stepping
1082    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1083    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1084    o change phiMin in exp1 (to agree with documentation)
1085    o add new flags:
1086     - T,S forcing inside/outside Adams-Bashforth
1087     - turn off temp,salt advection and/or forcing
1088     - for each tracer, define internal flag for multiDimAdvection & A-B
1089    o monitor: change definition of KE to check conservation of Energy
1090    
1091    checkpoint45c_post
1092    o Removed f90 comments ("!")
1093    o Modified initialisations to enable exf package for MITgcm
1094      (without invoking ECCO_PACKAGE).
1095    o modifications to gradient check package (Martin Losch)
1096      - enable centered differences
1097      - modified format of standard output
1098    
1099    checkpoint45b_post
1100    o cleaned exchange calls in cg2d
1101    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1102    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1103      to configure barotropic setup (Martin Losch)
1104    o moved some initialisations within bi,bj loop in dynamics
1105      (TAF flow dependency)
1106    o in initialise_varia, moved call packages_init_variables
1107      before convective_adjustment_init
1108      (corresponding adjustment of TAF tape initialisation).
1109    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1110    
1111    checkpoint45a_post
1112    o compute Rho over the whole domain (extend iMin,jMin indices)
1113    o specific exchange for X-slice domain (case Ny=1)
1114    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1115    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1116    
1117    checkpoint44h_post = checkpoint45
1118    o Fix to restore differentiability:
1119      place at which packages_init_variables is called in
1120      initialise_varia is crucial for reverse control flow.
1121    o modifications in GMRedi to enable stable adjoint
1122      (corresponding modif's in thermodynamics, dynamics)
1123    o added missing hook for sponge layer code in external_forcing
1124    o modified test cost functions
1125    o storing in gad_advection (plus removal of write(0,*)!
1126    o missing headers TR1.h added in convective_adjustment routines
1127    o errorMessageUnit set non-equal zero in eeboot
1128      (conflict on some platforms, e.g. IBM SP3)
1129    o modified carbon verif.
1130    
1131    checkpoint44h_pre
1132    o vertical grid option: allow to put the Interface at the middle between
1133      2 cell-centers ; replace delZ in pkg/kpp by drF.
1134    o GM Advective form: Tracers are advected using the residual transport (=
1135      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1136    
1137    checkpoint44g_post
1138    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1139      results) ; ifdef missing in thermodynamics.F
1140    
1141    checkpoint44f_pre,checkpoint44f_post
1142    o added PTRACERS package
1143      This allows an arbitrary number of passive tracers to be integrated
1144      forward simultaneously with the dynamicaly model.
1145      + Implemented so far:
1146        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1147        - I/O and checkpointing
1148        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1149      + Not implemented so far:
1150        - KPP
1151        - OBCS
1152      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1153        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1154        line in data.pkg.
1155      + This package is disabled by default since it increases storage.
1156    
1157    
1158    o testscript: added -cleanup option
1159    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1160                 b) enable to filter 2D fields.
1161    
1162    checkpoint44e_pre,post
1163    o re-wrote convective adjustment to use pre-calculated weights
1164      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1165      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1166      Original calls to convect() still in place.
1167    
1168    chkpt44d_pre,post
1169    o added missing EXCLUDE_MONITOR flags
1170    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1171      (incompatible typ in MIN/MAX expressions caused problems
1172      on IBM SP3)
1173    o in genmake added variable MAKEDEPEND
1174      plus resetting for case SunOS
1175    o added timer_stats.c routine for IBM SP3
1176    o removed variables in dynamics
1177    !!! I forgot to create tag chkpt44d_pre !!!
1178    !!! But chkpt44d_pre = chkpt44c_post    !!!
1179    
1180  o real fresh water flux implemented with non-linear free-surface.  o real fresh water flux implemented with non-linear free-surface.
1181    
1182  chkpt44c_pre,post  chkpt44c_pre,post

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