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revision 1.66 by jmc, Tue Mar 5 15:36:06 2002 UTC revision 1.267 by jmc, Thu Mar 11 14:54:53 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint52l_post
7    o new land formulation:
8      a) use ground enthalpy as prognostic variable to ensure exact
9         energy conservation.
10      b) account for water temperature and for latent heat of freezing
11         in all processes (rain, run-off, ground storage)
12      c) compute surface and ground temperature implicitly.
13    o aim_v23 modification for new land model:
14      a) Treat separately land / ocean / sea-ice surface fluxes
15         to allow implicit computation of land & sea-ice surface temp.
16      b) add snow precipitation.
17    checkpoint52l_pre
18    
19    o fix problem (when 1 tile is empty) in min/max monitor.
20    o fix bug in timeAve (u,vZetatave in common block)
21    o no restoring terms under ice for pkg/seaice
22    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
23    o bug fix for pkg/seaice pickups
24    o change MNC call locations and add coordinate attributes
25    o mask vorticity at the corner ; affects global_ocean.cs output
26    o fix ini_curvilinear_grid ; test CS experiments with mpi
27    o aim.5l_cs: modify sea-ice fraction input file ; update output
28    o exf: Adding simple range check routine for exf fields after read
29    
30    checkpoint52k_post
31    o removed top-level directory "diags"
32      - we migrated these functions to pkg/timeave a long time ago
33    o fixed bug introduced in pkg/monitor
34    o accuracy ctrlprec = 32 insuffient for gradient checks using
35      averaged fields (I/O via cost_averages)
36      -> use ctrl.h in active_file*.F to control I/O precision.
37    o paramter list of CALL ADTHE_MAIN_LOOP
38    o added initial do_the_model_io to ecco
39    o set all ...Freq to zero after cost_final
40      taveFreq, dumpFreq, pChkptFreq
41    o MAIN and ECCO differentiability restored
42    
43    checkpoint52j_post
44    o fix nchklev in tamc.h for global_ocean...
45    o Bringing flow and store directives up-to-date
46    o Really weird thing!
47      call do_the_model_io from the_main_loop with parameters
48      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
49      TAF places a faulty re-call of initialise_varia
50      after cost_final call which should not be there!
51    checkpoint52j_pre
52    
53    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
54      error messages
55    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
56    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
57      debug output
58    o modfied mdsio_writefield.F to handle non-global files under exch2
59    o update AIM Cubed-Sphere exp (aim.5l_cs):
60      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
61    o update AIM Equatorial Channel exp:
62      use standard aim_v23 pkg and change the SST fields to be more realistic.
63    o globalFile now works with exch2
64    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
65      mon_vort3.F to make exch2 friendly with >1 tile per cube face
66    o limit timeave output for hi-res integrations
67    
68    checkpoint52i_post
69    o removed CPP_EEOPTIONS.h from verification/*/code
70    o updated the tiling for global_ocean_pressure
71    checkpoint52i_pre
72    
73    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
74      the old pkg/aim).
75    
76    checkpoint52h_pre
77    o shortened offending lines in exch2_send_rx?.template
78    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
79    o genmake2: add build & execute test for NetCDF code
80    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
81      old grid files, moved CPP_EEMACROS.h to pkg/exch2
82    o added useSingleCPUIO flag to monitor.F and mon_out.F
83    o added temporary hack for sea-ice dynamics on the cube:
84      metric terms are ignored and it is assumed that
85      there is no sea-ice on cube faces 1, 2, 4, and 5.
86    
87    checkpoint52f_post
88    o added exch2 cube routines to pkg/exch2
89    o modified hs94.cs-32x32x5 to use it
90    o added new grid files to hs94.cs-32x32x5
91    checkpoint52f_pre
92    
93    checkpoint52e_post
94    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
95      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
96    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
97      to work with implicit vertical advection and AB ;
98    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
99    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
100     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
101    checkpoint52e_pre
102    
103    o fix bug in impldiff when Nr=1 or Nr=2.
104    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
105    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
106    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
107      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
108    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
109    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
110    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
111    
112    checkpoint52d_post
113    o re-tiled many expts to allow comparison in multi-processor mode
114      - updated output accordingly
115      - changed hs94.128x64x5 to use intial T from file rather than use the
116        random number generator
117    o add infrastructure in model routines for fizhi and gridalt packages
118    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
119    o changes to permit hi-res, cubed-sphere, configuration
120      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
121      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
122      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
123        of surface winds for the cube
124      (A verification experiment, based on global_ocean.cs32x15, but with
125       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
126       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
127       complete with example surface forcing files and matlab scripts to look
128       at the output and compare it with that of global_ocean.cs32x15.)
129    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
130       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
131       to conform to the common rule.
132    o check-in the first version of the coupler + interfaces for multi-components
133       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
134       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
135       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
136       - ocean and atmos. share the same horizontal grid (no interpolation).
137       - exchanges between component and coupler is done in forward_step
138    o new verification experiment, cpl_aim+ocn:
139       coupled ocean - AIM atmosphere on cs32 grid.
140    
141    checkpoint52d_pre
142    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
143    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
144    
145    checkpoint52c_post
146    o Fixing OPTIONS files for use of exf:
147      - ALLOW_ECCO not needed
148      - ECCO_CPPOPTIONS.h should not be included from
149        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
150        as has been the case in the past
151      - All cal/exf related options are currently set in
152        single header file. Should remain so until we
153        agree on a consistent new policy.
154    o Removed all CPP options for cal package.
155      cal has no more CPP options.
156    o modified STOREs in GAD_ADVECTION
157    o corrected key comp. for passkey
158    
159    checkpoint52b_post
160    o new version: "thsice" of thermodynamic sea-ice pkg:
161     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
162     - modify fluxes but do not change theta directly;
163     - light cleaning of bulk_force pkg (still needed with thsice).
164     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
165       + output_thsice.txt to test thsice & bulk_force pkgs.
166    o put back grid & coriolis monitor output.
167    checkpoint52b_pre
168    
169    o call "do_the_model_io" at the beginning (=> dump initial state)
170    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
171    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
172      (need info on NUMBER_OF_PTRACERS)
173    o missing PTRACERS headers in some routines
174    o default tamc.h in pkg/autodiff supposed to crash
175      to ensure proper customization
176    
177    checkpoint52a_post
178    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
179      - moved surfaceTendencyTice from pkg/seaice to main code
180      - subroutine FREEZE_SURFACE now limits only surface temperature
181        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
182        => new output.txt for global_ocean.cs32x15 & global_with_exf
183      - keep the old version of FREEZE for backward compatibility;
184        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
185      - corresponding modifs for TAF directives
186    o added surface flux output variables to TIMEAVE_STATVARS
187    o time-averaged output for pkg/ptracers
188    o fix problem with ECCO-related divided adjoint
189      snapshot file was missing some ad-variables,
190      but no warning issued by TAF
191    
192    checkpoint52a_pre
193    o some bug fixes for #undef REAL4_IS_SLOW
194    
195    checkpoint52 = ecco_c52_e35
196    o after testing adjoints of checkpoint51u_post
197    
198    checkpoint51u_post
199    o this is the post-merge tag of the ecco-branch
200      (needs another clean checkout and re-testing)
201    o various natl_box_adjoint configs and results
202      but no input fields
203    o obcs adjoint not yet merged!
204    o adding ECCO global 1x1 and 2x2 degree configs
205    o updated/extended some store directives for seaice
206    o pkg/ecco now containes ecco-specific part of cost function
207    o top level routines the_main_loop, forward_step
208      supersede those in model/src/
209      previous input data.cost now in data.ecco
210      (new namelist ecco_cost_nml)
211    o in ctrl/ cleaned some cross-dependencies and updated CPP options
212    
213    checkpoint51t_post
214    o this is the pre-merge tag of the ecco-branch
215    
216    checkpoint51s_post
217    o cleanup: removed various obsolete #define-s
218    o pkg/grdchk
219      - renamed 'ph-grd 3' to 'grad-res'
220      - merged from ecco-branch
221        (remaining bug fixes for obcs gradient checks)
222      - additional high-precision output for testreport
223        (grep for 'precision_grdchk_result')
224    
225    checkpoint51r_post
226    o cleaned up or removed CPP_OPTIONS.h files
227    o updated results for some of the tests to reflect the new
228      optfiles (-ieee: -O0 instead of -O3)
229    
230    checkpoint51q_post
231    o cd_code:
232      - moved cd_scheme.F -> cd_code_scheme.F
233      - separate read_checkpoint from cd_code_ini_vars.F
234      - separated cd_code part from write_checkpoint
235      - updated AD_SOURCE, generated .flow
236      - added CD_CODE_VARS.h to the_main_loop
237      - Moving cd_code specific store dir.s to pkg/cd_code
238    o ctrl package totally restructured
239      - pack/unpack now optional and decoupled from
240        xx_/adxx_ I/O
241      - ctrl_pack/unpack cleaned
242        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
243      - confined inclusion of AD_CONFIG.h to where necessary.
244    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
245    
246    checkpoint51p_post
247    o create initial cd_code package
248      - WARNING: the initialization of fields within packages
249        is broken because INI_FIELDS (where READ_CHECKPOINT is
250        called) is called *before* PACKAGES_INIT_VARIABLES.
251        This seems to be backwards since
252        1) its important to initially zero the entire field including
253           the "halo" region
254        2) zeroing needs to be done *before* reading pickup info
255           and the pickup call might or might not happen in any
256           particular run
257      - this needs an overhaul for R2
258    o cleanup verification/*/code/GMREDI_OPTIONS.h
259    o cleanup testreport
260    
261    checkpoint51o_post
262    o bringing AD-related verif's up to date with genmake2
263      - carbon/
264      - global_ocean.90x40x15/
265      - hs.94.1x64x5/
266      - (front_relax/ )
267    o (more) consistent directory structure for AD-related verif.'s
268    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
269    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
270    o bug fix in find_alpha.F for MDJWF:
271      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
272        change rho -> rho-rhoConst
273      - replace call find_rho to find_rhonum
274    o initialisation of rFlx extended to full array (required by TAF)
275      and shifted to thermodynamics
276    o removed PTRACERS.h in ptracers routine
277    o added surfacetendencyPtr to S/R parameter list pracers_forcing
278    o Correcting initialisations for fVerU, fVerV.
279    o helping TAF to recognize dependency on kUp for
280      fVerU, fVerV
281    o Replacing delZ by delR in pkg/ctrl/
282    checkpoint51o_pre
283    
284    o undid all of cp51 pending some cleanups and discussion
285    o added the [#include "AD_CONFIG.h"] statement to all files that need
286       it for adjoint/tl #defines
287     o re-worked the build logic in genmake2 to support AD_CONFIG.h
288     o removed tools/genmake since it no longer works
289    
290    checkpoint51n_post
291    o modifications to make FREEZE flux visible to pkg/kpp
292      - moved surfaceTendencyTice from pkg/seaice to main code
293      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
294      - subroutine FREEZE now limits only surface temperature
295        (this means new output.txt for global_ocean.90x40x15,
296         global_ocean.cs32x15, and global_with_exf)
297    o added surface flux output variables to TIMEAVE_STATVARS
298    
299    checkpoint51n_pre
300    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
301    o added [#include "AD_CONFIG.h"] to all files that use the following
302      defines:
303      - ALLOW_ADJOINT_RUN
304      - ALLOW_TANGENTLINEAR_RUN
305      - ALLOW_ECCO_OPTIMIZATION
306    
307    checkpoint51m_post
308    o incorporating changes to get TAMC/TAF working in genmake2
309      - added new TAMC/TAF targets to the Makefile
310      - various cleanups related to package handling
311      - these changes should have no impact on the forward model
312    
313    checkpoint51l_post
314    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
315     - faster algorithm for cal_addtime.F
316     - higher precision arithmetic, where needed
317     - pkg/exf *startdate variables changed from calendar date to
318       model integration time
319    
320    checkpoint51l_pre
321    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
322    o enable to apply restoring on S & T only in a latitude band.
323    o update output (external_forcing_surf modif. change truncation errors)
324       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
325    
326    checkpoint51k_post
327    o change default to: useNHMTerms=.FALSE.
328     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
329       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
330     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
331        exp1, ideal_2D_oce
332     - change data file of oceanic exp (leave the results unchanged for now)
333       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
334    o set gravitySign automatically according to the vertical coordinate used
335      (and change sign: back to "logical" value: +1 when R increases downward)
336    o added an include barrier to the default CPP_OPTIONS.h and
337      removed the #include "PACKAGES_CONFIG.h" from it
338    o fix a bug in mom_fluxform (from chk51j_post)
339    
340    checkpoint51j_post
341    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
342    o adjusted some flow directives (dynamics, thermodynamics)
343    o added cubed-sphere case to test cost function
344    o heckpoint_lev?_directives.h now include
345      pkg-specific directives, whenever those are enabled.
346    o Moving pkg-specific flow directives to corresponding pkg
347      Moving pkg-specific differentiation list to corresponding pkg
348      Moving pkg-specific checkpoint-lev storing to corresponding pkg
349      ---> conventions are
350           - pkg_ad.flow
351           - pkg_ad_diff.list
352           - pkg_ad_check_lev?_dir.h
353    
354    checkpoint51i_post
355    o merge of the branch-genmake2
356      - knowingly breaks the older genmake
357      - automatic generation of all ALLOW_${PKG_NAME} defines
358      - new testreport supersedes older testscript
359    o large number of package inclusion and header cleanups
360    checkpoint51i_pre
361    
362    o new output for adjoin of global ocean vector invariant
363    o fix for checkpoint of thermodynamic seaice and bulk_force
364    o Steph gchem various cleanups
365    
366    checkpoint 51h_pre
367    o fixed some single quotes
368    o modify gchem pkg to be more versatile
369    o modifications to clean up dic pkg
370    o add pkg/cfc
371    
372    checkpoint51g_post
373    o provide links for ARPACK and ADM*TLM
374    o start removing verification/vero/
375    o update AD-related stuff
376      (in particular some IF-statements in model/src/ routines)
377    o adding to verification/global_ocean.90x40x15/ adjoint of
378      vector invariant setup
379    
380    checkpoint51f_post
381    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
382    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
383      of tracer Green's fucntions for ocean inversion project.
384    
385    checkpoint51f_pre
386    o Added on-the-fly spatial interpolation capability
387        "USE_EXF_INTERPOLATION" to pkg/exf.
388      - This is a temporary Cartesian-grid hack until
389        the super-duper ESMF coupler becomes available.
390      - See verification/global_with_exf/README for usage example.
391      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
392        flags and modified pkg/seaice accordingly.
393    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
394        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
395        non-local transport term.
396    
397    checkpoint51e_post
398    o pkg/mom_vecinv:
399      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
400      - add time-ave diagnostic of vorticity advection.
401    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
402    o atmospheric geopotential: - include water vapor effect;
403                                - use p^kappa in p* scaling.
404    o land pkg: read initial state from files.
405    o AIM : add stratospheric drag in the upper level
406    
407    checkpoint51d_post
408    o change function ILNBLNK (=> last non-blank char.) to return zero
409      (instead of the string length) when the string. char is empty
410    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
411    o modif's to restore TAMC compatibility
412      - avoid "_d" constructs in PARAMETER declarations
413      - avoid interrupting lines by comment lines
414    o Use cluster local disks for purely local I/O
415      vs. globally visible disks needed for ctrl stuff
416      (merged from ecco-branch)
417      - new active_file_loc... and mdsio_..._loc routines
418      - affected packages: autodiff, ctrl, grdchk, mdsio
419    
420    checkpoint51c_post
421    o introducing integer flag debugLevel
422      - debLevZero: suppress all output
423      - debLevA: standard
424      - debLevB: equivalent to current debugMode=.TRUE.
425    o introducing pathname variable mdsioLocalDir for mdsio
426      that can be specified at runtime
427      (relevant for cluster I/O to local disk)
428    `
429    >>>checkpoint51b_post
430    adjoint of ptracers
431    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
432    o extended state in checkpoint_lev?, etc.
433    o alternative ctrl/cost with tr1 or ptracer
434    o new comlev1_bibj_ptracers
435    o new ptracers.flow
436    o made ptracers_forcing same as external_forcing_s
437    o added verification for adjoint with ptracers
438      - adm. grdchk fail so far
439      - tlm. grdchk OK
440      - checked tapelev/comlev recomputations: OK
441    <<<checkpoint51b_pre
442    
443    checkpoint51a_post
444    o added code for biogeochemistry package
445      - new pkgs: dic, gchem
446      - new subroutine in ptracers
447    o modify code for biogeo packages
448      - in model/src and pkg/ptracers
449    
450    checkpoint51
451    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
452      - autodiff, ctrl, exf, grdchk, seaice
453      kept separate packages
454      - cost, ecco, obcs
455    o updating verification/internal_wave, verification/lab_sea
456      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
457    
458    checkpoint50i_post
459    o Preparing next differentiable checkpoint and sync
460      of MAIN vs. ecco-branch
461      - 1st step: this one is differentiable
462      - 2nd step: next(! not this) checkpoint will have updated packages
463                  from ecco-branch)
464    
465    checkpoint50h_post
466    o new package "land": provide surface BC for AIM.
467    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
468    o AIM: use true log-P extrapolation for near surface temp (= as in
469        F.Molteni paper) ; update aim.5l_cs output.
470    o New variable in PARM03 for more flexible pickups
471    o somewhat cleaned package initialisation sequence for
472      ctrl/ cost/ ecco/ in packages_... routines
473    
474    checkpoint50g_post
475    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
476      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
477      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
478        made the default because of faster convergence than ADI
479    
480    checkpoint50f_post
481    o exf totally restructured
482      - replaced all exf_set_ routines by one generic exf_set_gen.F
483        and made sure it's still differentiable
484      - split exf_getffields.F into new exf_bulkformulae.F
485      - exf_inscal_/exf_outscal_ suffixes consistent with field names
486      - updated adjoint/makefile and relevant verif. accordingly
487    
488    checkpoint50f_pre
489     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
490          + change Evap over land. (update aim.5l_cs output)
491     o added missing .cvsignores and made uniform across expts
492     o changed configuration of tidal_basin_2d expt
493     o added pkg/debug functions for tracing code in fatal crashes
494     o tidied pkg/monitor to use MONITOR_OPTIONS.h
495     o new fn in pkg/monitor to stop model if solution grows too big
496     o removed lots of single quotes from comments
497    
498    checkpoint50e_post
499    o make KPP work with PTRACERS
500     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
501       nearly a copy of kpp_transport_s
502     - there is no analogue to SurfaceTendencyS, so I have to use
503       gPtr(of the surface layer) instead
504    o add a new platform SunFire+mpi (SunFire 15000) to genmake
505    checkpoint50e_pre
506    
507    checkpoint50d_post
508    o change kpp output from multiple-record state files to single-record state
509      files analogous to write_state.F
510    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
511      analogous to the cg2d-related output.
512    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
513      so that writing to internal file fn (with length 512) fails.
514    checkpoint50d_pre
515    
516    checkpoint50c_post
517    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
518    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
519    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
520    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
521    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
522    
523    checkpoint50c_pre
524    Merging from release1_p13:
525    o bug fix for pkg/seaice dynamic solver
526    o Added SEAICE_initialHEFF to pkg/seaice
527    
528    checkpoint50b_post
529    o store u*,v* in gU,V instead of in guNm1,gvNm1
530    o in order to put the momForcing out of the Adams-Bashforth:
531      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
532      to timestep.F
533    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
534    o re-generate output for highly sensitive test-exp:
535       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
536    
537    checkpoint50b_pre
538    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
539    o corrected CPP option mismatch in exf_Bulk... functions for case
540      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
541    
542    checkpoint50a_post
543    o Bug fix for merging between c50 and KPP.
544      ikey was passed from thermodynamics to kpp_calc via
545      common block rather than being recomputed in kpp_calc,
546      in contradiction with new key itdkey.
547      New key ikppkey created, and tamc.h headers updated.
548    
549    checkpoint50
550    - 2nd step of merge with ecco-branch:
551      merge changes in ecco-branch back into main trunk
552    - bug fix in find_alpha
553    - more storing in gmredi_calc_tensor.F, kpp_routines.F
554    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
555    - merged some sliced AD support routines
556    
557    checkpoint49
558    merged from ecco-branch:
559    o exf:
560      - Enable initialisation of forcing fields to constant
561        (runtime) values.
562      - in exf_getffields.F
563        Reduce i-/j-loop to interior domain, discarding overlaps.
564        That also fixes wrong TAF-key computations for key_1, key_2
565        with bulf formulae.
566      - exf_init.F modify #ifdef for exf_init_evap
567      - exf_getffieldrec.F, ctrl_getrec.F
568        The following INT-usages are not safe:
569          fldsecs  = int(fldsecs/fldperiod)*fldperiod
570          fldcount = int(fldsecs/fldperiod) + 1
571        and were modified.
572    o autodiff: checkpoint_lev...
573      - updated storing for bulk formulae (some arrays were missing)
574      - added state for seaice package
575      - synchronized with main branch
576    o DIVA:
577      Modif.s in
578      - the_main_loop.F
579      - the_model_main.F
580      and added cost_final_restore.F cost_final_store.F
581      o With these changes, it is possible to fully separate
582        the first forward run to compute the cost function (mdthe_main_loop)
583        and adjoint runs over individual DIVA intervals (adthe_main_loop)
584        into separate model executions.
585        This enables better tuning of DIVA to given queue sizes.
586      o Loss of cost function value in consecutive DIVA runs is
587        fixed by storing to 'costfinal' file.
588      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
589        beginning/end of adjoint integration is accounted for.
590      The current changes apply to TAF-1.4.26.
591      TAF has one remaining bug, requiring one manual change
592      (see MITgcm manual).
593    o cal: synchronized between MAIN and ecco-branch
594    
595    checkpoint48i_post
596    o Changes to restore differentiability of code w.r.t. previous tag
597      (mostly adding new routines to make list and replacing
598      pressure by totPhiHyd).
599    o Updated and merged grdchk package
600      - has both ADM and TLM checks
601      - works for single- and multi-proc.
602      - output cleaned
603      - worked successfully for parallel DIVA
604    o genmake:
605      - Adding -platform=SP4
606      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
607    o Modif. for DIVA:
608      ctrl_unpack should not be called in intermediate DIVA interval.
609      (similar thing would apply for active files such as
610      tbar, sbar, psbar, which should not be reinitialised;
611      only relevant for ecco-branch)
612    
613    checkpoint48h_post
614    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
615    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
616    o Added SEAICE_initialHEFF to pkg/seaice
617    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
618    
619    checkpoint48g_post
620    --- EOS:
621    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
622      store total Potential in totPhyHyd for diagnostics & EOS.
623    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
624    --- Pressure/geopotential gradient:
625    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
626    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
627      ( changes results of global_ocean_pressure )
628    o NLFS + z-coord.: add eta*Rho' contribution.
629    o accurate phiHyd when using interface-W at the middle between 2 centers
630     ( changes results of ideal_2D_oce )
631    o includes r* 2nd term in potential gradient.
632    
633    checkpoint48f_post
634    Merging from release1_p12:
635    o Modifications for using pkg/exf with pkg/seaice
636      - improved description of the various forcing configurations
637      - added basic radiation bulk formulae to pkg/exf
638      - units/sign fix for evap computation in exf_getffields.F
639      - updated verification/global_with_exf/results/output.txt
640    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
641      (SBO) core products, including oceanic mass, center-of-mass,
642      angular, and bottom pressure (see pkg/sbo/README.sbo).
643    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
644      to avoid negative values in shallow regions.
645      - updated verification/natl_box/results/output.txt
646      - updated verification/lab_sea/results/output.txt
647    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
648    o Added useSingleCpuIO option (see PARAMS.h).
649    o Updated useSingleCpuIO option in mdsio_writefield.F to
650      work with multi-field files, e.g., for single-file pickup.
651    o pkg/seaice:
652      - bug fix in growth.F: QNET for no shortwave case
653      - added HeffFile for specifying initial sea-ice thickness
654      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
655    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
656      kpp_transport_t.F, forward_step.F, and the_main_loop.F
657    o pkg/seaice:
658      - adjoint-friendly modifications
659      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
660    
661    checkpoint48e_post
662    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
663    o dynamics: change definition of computational domain & adapt mom_fluxform
664      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
665    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
666        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
667        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
668        global_ocean.90x40x15 global_with_exf global_ocean_pressure
669        inverted_barometer solid-body.cs-32x32x1
670      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
671    
672    checkpoint48d_post
673    o in preparation for r*:
674     a) use pre-computed gradient of hydrostatic potential:
675        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
676     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
677        => affects results of glob_oce_pressure (different truncation error)  
678      update output.txt of ideal_2D_oce & global_ocean_pressure
679    
680    checkpoint48d_pre
681    o in preparation for r*:
682      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
683      pass the 2 comp. of the grad. as arguments to momentum S/R.
684      but for the moment, only used if it does not change the results.
685    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
686    
687    checkpoint48c_post
688    Modifications in treatment of initial flux forcing controls
689    to avoid extra storing of flux fields.
690    
691    checkpoint48c_pre
692    o Added tidal_basin_2d experiment (currently 1D!)
693    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
694    
695    checkpoint48b_post
696    o r* coordinate added in #ifdef NONLIN_FRSURF block.
697     (modification to pressure gradient not yet implemented)
698    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
699      (for U & V) that are used for vertical advection of momentum.
700    
701    checkpoint48a_post
702    o In preparation for r*, use temp. array to compute vertical transport
703       in flux-form momentum pkg. => change results of few test-exp.
704      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
705                        lab_sea, natl_box & plume_on_slope
706    
707    checkpoint48
708    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
709    
710    checkpoint47j_post
711    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
712    o moved adexch from forward_step to addummy_in_stepping
713    o added exch in ctrl_map_...
714    o aveFreq.=0. at end of cost_final to avoid overwrite in
715      reverse checkpointing loop
716    o Yet more changes in gmredi:
717      * adgmredi_calc_tensor
718        avoiding all recomputation of gmredi_slope_limit
719      * adgmredi_x/y/rtransport
720        added flag for excessive storing to avoid recomp. of
721        u/v/rtans, dTdx/y/z
722        -> this is not really necessary and very memory-consuming
723      * adgmredi_slope_psi:
724        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
725      * gmredi_slope_limit
726        re-activated full calculation of taperfct for case 'ac02'
727    o updating verification/ adjoints of carbon, global_ocean.90x40x15
728    
729    checkpoint47i_post
730    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
731    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
732      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
733    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
734    o gmredi: fix few bugs.
735    
736    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
737    This will be a good checkpoint to plug into the ecco-branch.
738    o few modif.'s to get latest version adjointed
739      (mainly kick out code in ini_linear_phisurf)
740    o modif's to run adjoint with exactConserv
741    o case GM_BOLUS_ADVEC should be cleaned
742      S/R gmredi_slope_psi should be cleaned
743    o verification/carbon now has exactConserv=.TRUE.
744    
745    checkpoint47g_post
746    o time-average AIM output: becomes independent from statvars time-average
747      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
748    o After TAF bug fix:
749      Tested adjoint of gmredi package.
750      Tests were done with checkpoint47 rather than with latest
751      checkpoint47f_post since the latter is broken for the adjoint
752      verification/carbon/ contains both ADM and TLM gradient checks.
753    Here they are, before they get changed/lost/stolen.
754    Mostly modif.'s to fix numerical sensitivities.
755    Gradient checks OK for
756    - GM_taper_scheme:
757      * clipping
758      * ac02
759      * linear
760      * glw91
761      * dm95
762      * ldd97
763    - GMREDI_OPTIONS:
764      * GM_VISBECK_VARIABLE_K
765      * GM_NON_UNITY_DIAGONAL
766      * GM_EXTRA_DIAGONAL
767      * GM_BOLUS_ADVEC
768    in conjunction with data.gmredi parameters to be checked in
769    in a few minutes under verification/carbon/code/
770    
771    checkpoint47f_post
772    Merging from release1_p10:
773    o modifications for using pkg/exf with pkg/seaice
774      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
775        and SEAICE_EXTERNAL_FLUXES
776      - pkg/exf CPP options EXF_READ_EVAP and
777        EXF_NO_BULK_COMPUTATIONS
778      - usage examples are Experiments 8 and 9 in
779        verification/lab_sea/README
780      - verification/lab_sea default experiment now uses
781        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
782    
783    checkpoint47e_post
784    o created a tag prior to creating a branch
785    
786    checkpoint47d_post
787    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
788      at the bottom boundary had an erroneous half slip boundary condition
789    o added bottom drag and no slip boundary condition capabilities to
790      oceanic pressure coordinates code
791    o added new verification experiment global_ocean_pressure, this experiment is
792      also described in the tutorial section of the manual
793    checkpoint47d_pre
794    
795    checkpoint47c_post
796    o Added a verification experiment for a global cubed-sphere ocean run
797      -  verification/global_ocean.cubed32x32x30
798      -  uses pkg/therm_seaice and pkg/bulk_forcing
799    
800    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
801    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
802      when using P-coordinate; only implemented for atmospheric config.
803    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
804      NOTES: requires option NONLIN_FRSURF to be "#define".
805    o update advect_xz/results/output.txt (left from checkpoint44g_post)
806    
807    checkpoint47b_post
808    Merging from release1_p9:
809    o pkg/seaice
810      - removed GOTO's and added taf directives
811      - double precision constants to reduce the g77 (Linux)
812        to F77 (SGI) differences reported in release1_p8
813    o tools/genmake
814      - added SGI options
815    o verification/testscript
816      - updated to that of checkpoint47a_post
817    o verification/global_ocean.90x40x15/input/eedata
818      - modified for SGI f77 compatibility
819    o verification/lab_sea
820      - added description of sea-ice model
821      - added missing matlab routines
822      - added test of thermodynamics parallelization
823    
824    checkpoint47a_post
825    o new pkg: aim_v23
826     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
827       for now, keep the same surface forcing as before.
828     - Part-Cell implemented into AIM; check that Heat & Water are conserved
829     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
830     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
831    o add diagnostic of surface correction term in monitor output
832    
833    o bulk_force and therm_seaice
834    - Two packages:  bulk_force (Bulk forcing)
835      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
836    - Earlier integration from Stephaine Dutkiewicz
837      and Patrick Heimbach.
838    - Two ifdef statements for compile time,
839       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
840    
841    checkpoint47
842    differentiable version of checkpoint46n_post
843    o bug fix in quasihydrostaticterms
844    o * "clean" adjoint code (in terms of extensive recomputations)
845        can now be obtained for all GMREDI options (i.e. for
846        - GM_VISBECK_VARIABLE_K
847        - GM_NON_UNITY_DIAGONAL
848        - GM_EXTRA_DIAGONAL
849        - GM_BOLUS_ADVEC )
850      * However, wrong gradient check problem remains unsolved.
851      * New CPP options have been introduced for different
852        tapering schemes
853    o external_fields_load now part of differentiation list
854    o pressure needs multiple storing;
855      would be nice to have store_pressure at beginning or
856      end of forward_step, e.g. by having phiHyd global (5-dim.)
857      (NB: pressure is needed for certain cases in find_rho,
858      which is also invoked through convective_adjustment).
859    o recomputations in find_rho for cases
860     'JMD95'/'UNESCO' or 'MDJWF' are OK.
861    o #define ATMOSPHERIC_LOADING should be differentiable
862    o ini_forcing shifted to begining of initialise_varia
863    o Incorporating QNVS line search routines into MITgcm
864      (this is separate code, and therefore not under pkg)
865      lsopt/, optim/
866    o Updated verification/carbon/
867      - #define GM_VISBECK_VARIABLE_K
868      - GM_taper_scheme    = 'ldd97'    
869    
870    checkpoint46n_post
871    Merging from release1_p8:
872    o verification/natl_box:
873      updating new external_fields_load routine
874    o New package: pkg/seaice
875      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
876      The sea-ice code is based on Hibler (1979-1980).
877      Two sea-ice dynamic solvers, ADI and LSR, are included.
878      In addition to computing prognostic sea-ice variables and diagnosing
879      the forcing/external data fields that drive the ocean model,
880      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
881      The implied surface heat flux is then stored in variable
882      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
883      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
884      non-local transport term.  Because this call precedes model
885      thermodynamics, temperature under sea-ice may not be "exactly" at
886      the freezing point by the time theta is dumped or time-averaged.
887      N.B.: fairly large differences in accuracy occur across
888            different platforms/compilers; comparison between
889            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
890            generated output gives:
891       T           S           U           V
892      C D M    c        m  s        m  s        m  s        m  s
893      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
894      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
895      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
896    
897      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
898    o GAD:
899      - generated new common blocks to account for call of
900        same gad routines with differing traceridentities
901        (needed to modify tracerIdentity indices in GAD.h)
902      - generated separate common blocks for case useCubedSphereExchange
903        (Department of Futurology)
904      - parameter lists to gmredi_?transport: added tracerIdentity
905      - added new key indices to tamc.h
906    o external_fields_load:
907      - added this routine to TAF list
908      - needed to make some common blocks global and additional storing
909        along the same lines as exf package (checkpoint_lev?_directives.h)
910    o exf:
911      updated external forcing package
912      - bug fixes carried over from ecco-branch
913        (missing OBCS_OPTIONS.h in two routines)
914      - enable easy to use "no forcing".
915      - added exf I/O for atmospheric loading
916      - added exf I/O for runoff data
917      - transfered scaling between exf <-> MITgcm to exf namelist
918    o Adding new verification experiment global_with_exf.
919      This verification experiment is almost identical to the
920      global_ocean.90x40x15 experiment, except that it uses
921      the exf (and cal) package instead of the
922      external_fields_load routine (cf README file).
923    
924    checkpoint46m_post
925    o modified testscript to return -- when there are no lines of "%MON" output
926    o added new flag "quasiHydrostatic" for QH mode
927      and new routine quasihydrostaticterms()
928    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
929      New routine: mom_u_coriolis_nh()
930    o fixed sign of non-hydrostatic metric terms in u and v equations.
931      Depend on correct sign of gravitySign.
932    o added work.pc* to .cvsignore in aim directories using ifc
933    o introduced flag for controllin non-hydrostatic metric terms
934    o removed gravitySign from PARM04
935    o switched to g77/ifc from pgf77 in aim experiments
936    
937    checkpoint46l_post
938    o made convective adjustment work with pressure coordinates:
939     - changed the direction of k-loop in convective_adjustment.F for the
940       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
941     - adjusted the reference pressure k-index in convective_adjustment.F
942     - adjusted the convection condition in convect.F (in analogy to
943       calc_ivdc.F)
944     - convective_adjustment no longer computes anything on the halos
945     - removed the warnings about negative salinity from find_rho.F and
946       find_alpha.F; instead the new routine look_for_neg_salinity, called
947       at the beginning of find_rho, find_alpha, and find_beta, does a
948       check of the entire slice, if CPP-option
949       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
950    checkpoint46l_pre
951    
952    checkpoint46k_post
953    o fixed the verification/global_ocean.90x40x15 experiment:
954     - new bathymetry (the world according to A., JMC, and M.)
955     - new initial fields and forcing fields (*.bin files)
956     - new POLY3.COEFFS (for the next release one should switch to a full
957       equation of state: JMD95P or MDJWF)
958     - fixed several errors and redundancies in the data file
959     - experiment uses looped cells
960     - added matlab directory with diagnostic scripts for plotting of output
961    
962    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
963     - read AIM physics parameters from a file (data.aimphys)
964     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
965    
966    checkpoint46j_post
967    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
968    o move wVel computation at the end of the time step, in S/R integr_continuity
969    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
970    o update timeave pkg for wVel diagnostic.
971    checkpoint46j_pre
972    
973    checkpoint46i_post
974    o Clean up AIM package (and keep the results unchanged):
975      include CPP_OPTION and use IMPLICT NONE in all routines ;
976      declare all the variables _RL ; use _d 0 for all numerical constants.
977      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
978    
979    checkpoint46h_post
980    o cleaned up the use of rhoNil and rhoConst.
981      - rhoNil should only appear in the LINEAR equation of state, everywhere
982        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
983        and the dynamical equations are all divided by rhoConst
984    o introduced new parameter rhoConstFresh, a reference density of fresh
985      water, to remove the fresh water flux's dependence on rhoNil. The default
986      value is 999.8 kg/m^3
987    o cleanup up external_forcing.F and external_forcing_surf.F
988      - can now be used by both OCEANIC and OCEANICP
989    checkpoint46h_pre
990    
991     Added code to convert surface volume flux (fresh water) into
992     a mass flux when using P coordinates in the ocean (OCEANICP).
993     Note: It assumes you have set rho0=rhoConst=density of fresh water.
994    
995    checkpoint46g_post
996    o Include a new diagnostic variable phiHydLow for the ocean model
997      - in z-coordinates, it is the bottom pressure anomaly
998      - in p-coordinates, it is the sea surface elevation
999      - in both cases, these variable have global drift, reflecting the mass
1000        drift in z-coordinates and the volume drift in p-coordinates
1001      - included time averaging for phiHydLow, be aware of the drift!
1002    o depth-dependent computation of Bo_surf for pressure coordinates
1003      in the ocean (buoyancyRelation='OCEANICP')
1004      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1005        Theta, Salinity, and Pressure in the parameter list. This routine is
1006        presently contained in find_rho.F. This routine does not give the
1007        correct density for 'POLY3', which would be a z-dependent reference
1008        density.
1009    o cleaned up find_rho
1010      - removed obsolete 'eqn' from the parameter list.
1011    o added two new verification experiments: gop and goz
1012      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1013    checkpoint46g_pre
1014    
1015    checkpoint46f_post
1016    o Enable tangent linear (forward mode) gradient checks:
1017      - extended active file handling to g_... files
1018      - added TANGENT_SIMULATION to theSimulationMode
1019      - extended grdchk package accordingly
1020    o added tangent linear setup in verification/carbon/code_ftl
1021    o added adjoint setup in verification/front_relax/code_ad
1022    
1023    checkpoint46e_post
1024    o Added new equation of state -> MDJWF
1025      - EOS of McDougall et al., 2002, JAOT, submitted
1026      - caveat: the equation of state is only valid for a smaller (more
1027        realistic?) range of values than JMD95P/Z and UNESCO
1028      - added masks to the calculation of pressure in store_pressure
1029      - added more check values for density in check_eos (ini_eos.F), some of
1030        the old check values are out of the range of the MDJWF-eos, so don't
1031        expect perfect matches for those
1032    checkpoint46e_pre
1033    
1034    checkpoint46d_post
1035    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1036      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1037      case of pressure coordinates. eosType='JMD95Z' in
1038      combination with buoyancyRelation='OCEANICP' now causes an error.
1039    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1040      in find_alpha/beta.
1041    checkpoint46d_pre
1042    
1043    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1044      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1045    
1046    checkpoint46c_post
1047    o Changes necessary for ocean in p-coordinates
1048     -  Added new buoyancy relation = 'OCEANICP'
1049     -  Added new parameters = gravitySign (this used to be contained inside
1050        the factor dRdZ which I added when we first switched to R coordinates).
1051     X GM/Redi is not compatible (yet)
1052     X bottom drag and no-slip need to be debugged.
1053    checkpoint46c_pre
1054    
1055    checkpoint46b_post
1056    o Added new equation of state -> JMD95Z and JMD95P
1057      - EOS of Jackett and McDougall, 1995, JAOT
1058      - moved all EOS parameters into EOS.h
1059      - new routines ini_eos.F, store_pressure.F
1060    o Added UNESCO EOS, but not recommended because it requires
1061      in-situ temperature (see JMD95)
1062    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1063      unesco.f to be used with POLY3
1064    checkpoint46b_pre
1065    
1066    checkpoint46a_post
1067    o Added (atmospheric) pressure loading
1068      - new field in FFIELDS.h, etc...
1069      - new cpp flag ATMOSPHERIC_LOADING
1070    o Changed hFacC to _hFacC in calc_phi_hyd.F
1071    o Added SHORTWAVE_HEATING to some files for consistency
1072    checkpoint46a_pre
1073    
1074    checkpoint46
1075    further merges from release1_p5
1076    o new ctrl package
1077      - adopted from ECCO environment to enable optimization
1078      - added Eliassen Palm fluxes to controls
1079    o added Eliassen Palm flux controls to gradient check package
1080    o cost package
1081      - Compatible with new ctrl package
1082      - added Eliassen Palm cost hooks
1083      - modif's of existing cost functions
1084    o Adjoint-related bug fixes in kpp:
1085      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1086      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1087    o autodiff package
1088      - flow directives:
1089        + new for S/R do_the_model_io
1090        + enhanced for S/R checkpoint
1091        + new gmredi.flow
1092      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1093        disable adcommon.h/g_common.h by default.
1094      - fixed problem for adjoint of global_max
1095    o modified verification/carbon/
1096    o New setup for adjoint of global_ocean
1097    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1098    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1099    o incorporated hooks for sponge layer code (external_forcing.F)
1100    
1101    checkpoint45d_post
1102    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1103    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1104      (affects plume_on_slope "cg2d" output)
1105    o add new parameter deltaTfreesurf for free-surface time stepping
1106    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1107    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1108    o change phiMin in exp1 (to agree with documentation)
1109    o add new flags:
1110     - T,S forcing inside/outside Adams-Bashforth
1111     - turn off temp,salt advection and/or forcing
1112     - for each tracer, define internal flag for multiDimAdvection & A-B
1113    o monitor: change definition of KE to check conservation of Energy
1114    
1115    checkpoint45c_post
1116    o Removed f90 comments ("!")
1117    o Modified initialisations to enable exf package for MITgcm
1118      (without invoking ECCO_PACKAGE).
1119    o modifications to gradient check package (Martin Losch)
1120      - enable centered differences
1121      - modified format of standard output
1122    
1123    checkpoint45b_post
1124    o cleaned exchange calls in cg2d
1125    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1126    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1127      to configure barotropic setup (Martin Losch)
1128    o moved some initialisations within bi,bj loop in dynamics
1129      (TAF flow dependency)
1130    o in initialise_varia, moved call packages_init_variables
1131      before convective_adjustment_init
1132      (corresponding adjustment of TAF tape initialisation).
1133    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1134    
1135    checkpoint45a_post
1136    o compute Rho over the whole domain (extend iMin,jMin indices)
1137    o specific exchange for X-slice domain (case Ny=1)
1138    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1139    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1140    
1141    checkpoint44h_post = checkpoint45
1142    o Fix to restore differentiability:
1143      place at which packages_init_variables is called in
1144      initialise_varia is crucial for reverse control flow.
1145    o modifications in GMRedi to enable stable adjoint
1146      (corresponding modif's in thermodynamics, dynamics)
1147    o added missing hook for sponge layer code in external_forcing
1148    o modified test cost functions
1149    o storing in gad_advection (plus removal of write(0,*)!
1150    o missing headers TR1.h added in convective_adjustment routines
1151    o errorMessageUnit set non-equal zero in eeboot
1152      (conflict on some platforms, e.g. IBM SP3)
1153    o modified carbon verif.
1154    
1155    checkpoint44h_pre
1156    o vertical grid option: allow to put the Interface at the middle between
1157      2 cell-centers ; replace delZ in pkg/kpp by drF.
1158    o GM Advective form: Tracers are advected using the residual transport (=
1159      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1160    
1161  checkpoint44g_post  checkpoint44g_post
1162  o fix surface correction term in multiDimAdvection (affects plume_on_slope  o fix surface correction term in multiDimAdvection (affects plume_on_slope
1163    results) ; ifdef missing in thermodynamics.F    results) ; ifdef missing in thermodynamics.F

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