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revision 1.141 by heimbach, Fri Feb 28 05:21:22 2003 UTC revision 1.282 by mlosch, Tue Apr 20 19:16:48 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o bug fix in exf-package:
7      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
8         now reflect that.
9    o small fixes in the cal-package:
10      - set reference date to first of January for the 'model'-calendar
11      - failing of cal_CheckDate in cal_FullDate now actually results in a
12        warning
13    o small modifications in exf-package to increase flexibility:
14      - change climtempfreeze from a constant to a runtime parameter that
15        is specified in data.exf_clim (default = -1.9)
16      - introduce runtime parameter windstressmax (default = 2.0) that is
17        specified in data.exf
18    o fix in pkg/thsice:
19      - update Evap (Tsf changes) to be consistent with Latent heat flux
20      - maintain snow precipitation unchanged (even if Tsf >=0).
21     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
22    
23    checkpoint52m_post
24    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
25      this does not change any of the results, because myIter=0 in swfrac always
26      lead to jwtype=2 (the default anyway), but the call makes little sense
27      as a default
28    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
29    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
30      atmospheric model (AIM) to use it ; add a "slab ocean" component.
31    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
32    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
33    o extending useSingleCpuIO option to work with new exch2 I/O format
34      - old-style, missing-tile I/O is still accessible by defining CPP
35        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
36    o monitor package can write to NetCDF files and/or STDOUT
37    o fix re-definition bug in MNC_GRID_INIT_ALL()
38    o doc/api_reference added
39      - a framework for building an API Reference Manual using all
40        the "protex" comments embedded in the code
41      - see pkg/generic_advdiff, pkg/mnc for examples
42    o MNC:
43      - make myThid the last argument for all subroutines
44      - new default for the grid files: NO halos
45      - add useMNC and other run-time flags
46      - separate per-file-group handling of the unlimited dimension
47      - early initialization of MNC w/ flags read at the eeboot stage
48        and lookup tables set in initialize_fixed
49      - write all MNC output to a freshly-created directory
50    o thermodynamics sea-ice (thsice) is now tested with testreport.
51    o test exp. advect_cs: use the standard cs32 grid ; update output.
52    o Added functionality to grdchk:
53      pick global i,j,k position (or nearest wet) where to perform check.
54    
55    checkpoint52l_post
56    o new land formulation:
57      a) use ground enthalpy as prognostic variable to ensure exact
58         energy conservation.
59      b) account for water temperature and for latent heat of freezing
60         in all processes (rain, run-off, ground storage)
61      c) compute surface and ground temperature implicitly.
62    o aim_v23 modification for new land model:
63      a) Treat separately land / ocean / sea-ice surface fluxes
64         to allow implicit computation of land & sea-ice surface temp.
65      b) add snow precipitation.
66    checkpoint52l_pre
67    
68    o fix problem (when 1 tile is empty) in min/max monitor.
69    o fix bug in timeAve (u,vZetatave in common block)
70    o no restoring terms under ice for pkg/seaice
71    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
72    o bug fix for pkg/seaice pickups
73    o change MNC call locations and add coordinate attributes
74    o mask vorticity at the corner ; affects global_ocean.cs output
75    o fix ini_curvilinear_grid ; test CS experiments with mpi
76    o aim.5l_cs: modify sea-ice fraction input file ; update output
77    o exf: Adding simple range check routine for exf fields after read
78    
79    checkpoint52k_post
80    o removed top-level directory "diags"
81      - we migrated these functions to pkg/timeave a long time ago
82    o fixed bug introduced in pkg/monitor
83    o accuracy ctrlprec = 32 insuffient for gradient checks using
84      averaged fields (I/O via cost_averages)
85      -> use ctrl.h in active_file*.F to control I/O precision.
86    o paramter list of CALL ADTHE_MAIN_LOOP
87    o added initial do_the_model_io to ecco
88    o set all ...Freq to zero after cost_final
89      taveFreq, dumpFreq, pChkptFreq
90    o MAIN and ECCO differentiability restored
91    
92    checkpoint52j_post
93    o fix nchklev in tamc.h for global_ocean...
94    o Bringing flow and store directives up-to-date
95    o Really weird thing!
96      call do_the_model_io from the_main_loop with parameters
97      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
98      TAF places a faulty re-call of initialise_varia
99      after cost_final call which should not be there!
100    checkpoint52j_pre
101    
102    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
103      error messages
104    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
105    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
106      debug output
107    o modfied mdsio_writefield.F to handle non-global files under exch2
108    o update AIM Cubed-Sphere exp (aim.5l_cs):
109      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
110    o update AIM Equatorial Channel exp:
111      use standard aim_v23 pkg and change the SST fields to be more realistic.
112    o globalFile now works with exch2
113    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
114      mon_vort3.F to make exch2 friendly with >1 tile per cube face
115    o limit timeave output for hi-res integrations
116    
117    checkpoint52i_post
118    o removed CPP_EEOPTIONS.h from verification/*/code
119    o updated the tiling for global_ocean_pressure
120    checkpoint52i_pre
121    
122    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
123      the old pkg/aim).
124    
125    checkpoint52h_pre
126    o shortened offending lines in exch2_send_rx?.template
127    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
128    o genmake2: add build & execute test for NetCDF code
129    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
130      old grid files, moved CPP_EEMACROS.h to pkg/exch2
131    o added useSingleCPUIO flag to monitor.F and mon_out.F
132    o added temporary hack for sea-ice dynamics on the cube:
133      metric terms are ignored and it is assumed that
134      there is no sea-ice on cube faces 1, 2, 4, and 5.
135    
136    checkpoint52f_post
137    o added exch2 cube routines to pkg/exch2
138    o modified hs94.cs-32x32x5 to use it
139    o added new grid files to hs94.cs-32x32x5
140    checkpoint52f_pre
141    
142    checkpoint52e_post
143    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
144      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
145    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
146      to work with implicit vertical advection and AB ;
147    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
148    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
149     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
150    checkpoint52e_pre
151    
152    o fix bug in impldiff when Nr=1 or Nr=2.
153    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
154    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
155    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
156      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
157    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
158    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
159    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
160    
161    checkpoint52d_post
162    o re-tiled many expts to allow comparison in multi-processor mode
163      - updated output accordingly
164      - changed hs94.128x64x5 to use intial T from file rather than use the
165        random number generator
166    o add infrastructure in model routines for fizhi and gridalt packages
167    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
168    o changes to permit hi-res, cubed-sphere, configuration
169      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
170      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
171      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
172        of surface winds for the cube
173      (A verification experiment, based on global_ocean.cs32x15, but with
174       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
175       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
176       complete with example surface forcing files and matlab scripts to look
177       at the output and compare it with that of global_ocean.cs32x15.)
178    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
179       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
180       to conform to the common rule.
181    o check-in the first version of the coupler + interfaces for multi-components
182       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
183       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
184       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
185       - ocean and atmos. share the same horizontal grid (no interpolation).
186       - exchanges between component and coupler is done in forward_step
187    o new verification experiment, cpl_aim+ocn:
188       coupled ocean - AIM atmosphere on cs32 grid.
189    
190    checkpoint52d_pre
191    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
192    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
193    
194    checkpoint52c_post
195    o Fixing OPTIONS files for use of exf:
196      - ALLOW_ECCO not needed
197      - ECCO_CPPOPTIONS.h should not be included from
198        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
199        as has been the case in the past
200      - All cal/exf related options are currently set in
201        single header file. Should remain so until we
202        agree on a consistent new policy.
203    o Removed all CPP options for cal package.
204      cal has no more CPP options.
205    o modified STOREs in GAD_ADVECTION
206    o corrected key comp. for passkey
207    
208    checkpoint52b_post
209    o new version: "thsice" of thermodynamic sea-ice pkg:
210     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
211     - modify fluxes but do not change theta directly;
212     - light cleaning of bulk_force pkg (still needed with thsice).
213     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
214       + output_thsice.txt to test thsice & bulk_force pkgs.
215    o put back grid & coriolis monitor output.
216    checkpoint52b_pre
217    
218    o call "do_the_model_io" at the beginning (=> dump initial state)
219    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
220    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
221      (need info on NUMBER_OF_PTRACERS)
222    o missing PTRACERS headers in some routines
223    o default tamc.h in pkg/autodiff supposed to crash
224      to ensure proper customization
225    
226    checkpoint52a_post
227    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
228      - moved surfaceTendencyTice from pkg/seaice to main code
229      - subroutine FREEZE_SURFACE now limits only surface temperature
230        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
231        => new output.txt for global_ocean.cs32x15 & global_with_exf
232      - keep the old version of FREEZE for backward compatibility;
233        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
234      - corresponding modifs for TAF directives
235    o added surface flux output variables to TIMEAVE_STATVARS
236    o time-averaged output for pkg/ptracers
237    o fix problem with ECCO-related divided adjoint
238      snapshot file was missing some ad-variables,
239      but no warning issued by TAF
240    
241    checkpoint52a_pre
242    o some bug fixes for #undef REAL4_IS_SLOW
243    
244    checkpoint52 = ecco_c52_e35
245    o after testing adjoints of checkpoint51u_post
246    
247    checkpoint51u_post
248    o this is the post-merge tag of the ecco-branch
249      (needs another clean checkout and re-testing)
250    o various natl_box_adjoint configs and results
251      but no input fields
252    o obcs adjoint not yet merged!
253    o adding ECCO global 1x1 and 2x2 degree configs
254    o updated/extended some store directives for seaice
255    o pkg/ecco now containes ecco-specific part of cost function
256    o top level routines the_main_loop, forward_step
257      supersede those in model/src/
258      previous input data.cost now in data.ecco
259      (new namelist ecco_cost_nml)
260    o in ctrl/ cleaned some cross-dependencies and updated CPP options
261    
262    checkpoint51t_post
263    o this is the pre-merge tag of the ecco-branch
264    
265    checkpoint51s_post
266    o cleanup: removed various obsolete #define-s
267    o pkg/grdchk
268      - renamed 'ph-grd 3' to 'grad-res'
269      - merged from ecco-branch
270        (remaining bug fixes for obcs gradient checks)
271      - additional high-precision output for testreport
272        (grep for 'precision_grdchk_result')
273    
274    checkpoint51r_post
275    o cleaned up or removed CPP_OPTIONS.h files
276    o updated results for some of the tests to reflect the new
277      optfiles (-ieee: -O0 instead of -O3)
278    
279    checkpoint51q_post
280    o cd_code:
281      - moved cd_scheme.F -> cd_code_scheme.F
282      - separate read_checkpoint from cd_code_ini_vars.F
283      - separated cd_code part from write_checkpoint
284      - updated AD_SOURCE, generated .flow
285      - added CD_CODE_VARS.h to the_main_loop
286      - Moving cd_code specific store dir.s to pkg/cd_code
287    o ctrl package totally restructured
288      - pack/unpack now optional and decoupled from
289        xx_/adxx_ I/O
290      - ctrl_pack/unpack cleaned
291        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
292      - confined inclusion of AD_CONFIG.h to where necessary.
293    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
294    
295    checkpoint51p_post
296    o create initial cd_code package
297      - WARNING: the initialization of fields within packages
298        is broken because INI_FIELDS (where READ_CHECKPOINT is
299        called) is called *before* PACKAGES_INIT_VARIABLES.
300        This seems to be backwards since
301        1) its important to initially zero the entire field including
302           the "halo" region
303        2) zeroing needs to be done *before* reading pickup info
304           and the pickup call might or might not happen in any
305           particular run
306      - this needs an overhaul for R2
307    o cleanup verification/*/code/GMREDI_OPTIONS.h
308    o cleanup testreport
309    
310    checkpoint51o_post
311    o bringing AD-related verif's up to date with genmake2
312      - carbon/
313      - global_ocean.90x40x15/
314      - hs.94.1x64x5/
315      - (front_relax/ )
316    o (more) consistent directory structure for AD-related verif.'s
317    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
318    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
319    o bug fix in find_alpha.F for MDJWF:
320      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
321        change rho -> rho-rhoConst
322      - replace call find_rho to find_rhonum
323    o initialisation of rFlx extended to full array (required by TAF)
324      and shifted to thermodynamics
325    o removed PTRACERS.h in ptracers routine
326    o added surfacetendencyPtr to S/R parameter list pracers_forcing
327    o Correcting initialisations for fVerU, fVerV.
328    o helping TAF to recognize dependency on kUp for
329      fVerU, fVerV
330    o Replacing delZ by delR in pkg/ctrl/
331    checkpoint51o_pre
332    
333    o undid all of cp51 pending some cleanups and discussion
334    o added the [#include "AD_CONFIG.h"] statement to all files that need
335       it for adjoint/tl #defines
336     o re-worked the build logic in genmake2 to support AD_CONFIG.h
337     o removed tools/genmake since it no longer works
338    
339    checkpoint51n_post
340    o modifications to make FREEZE flux visible to pkg/kpp
341      - moved surfaceTendencyTice from pkg/seaice to main code
342      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
343      - subroutine FREEZE now limits only surface temperature
344        (this means new output.txt for global_ocean.90x40x15,
345         global_ocean.cs32x15, and global_with_exf)
346    o added surface flux output variables to TIMEAVE_STATVARS
347    
348    checkpoint51n_pre
349    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
350    o added [#include "AD_CONFIG.h"] to all files that use the following
351      defines:
352      - ALLOW_ADJOINT_RUN
353      - ALLOW_TANGENTLINEAR_RUN
354      - ALLOW_ECCO_OPTIMIZATION
355    
356    checkpoint51m_post
357    o incorporating changes to get TAMC/TAF working in genmake2
358      - added new TAMC/TAF targets to the Makefile
359      - various cleanups related to package handling
360      - these changes should have no impact on the forward model
361    
362    checkpoint51l_post
363    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
364     - faster algorithm for cal_addtime.F
365     - higher precision arithmetic, where needed
366     - pkg/exf *startdate variables changed from calendar date to
367       model integration time
368    
369    checkpoint51l_pre
370    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
371    o enable to apply restoring on S & T only in a latitude band.
372    o update output (external_forcing_surf modif. change truncation errors)
373       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
374    
375    checkpoint51k_post
376    o change default to: useNHMTerms=.FALSE.
377     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
378       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
379     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
380        exp1, ideal_2D_oce
381     - change data file of oceanic exp (leave the results unchanged for now)
382       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
383    o set gravitySign automatically according to the vertical coordinate used
384      (and change sign: back to "logical" value: +1 when R increases downward)
385    o added an include barrier to the default CPP_OPTIONS.h and
386      removed the #include "PACKAGES_CONFIG.h" from it
387    o fix a bug in mom_fluxform (from chk51j_post)
388    
389    checkpoint51j_post
390    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
391    o adjusted some flow directives (dynamics, thermodynamics)
392    o added cubed-sphere case to test cost function
393    o heckpoint_lev?_directives.h now include
394      pkg-specific directives, whenever those are enabled.
395    o Moving pkg-specific flow directives to corresponding pkg
396      Moving pkg-specific differentiation list to corresponding pkg
397      Moving pkg-specific checkpoint-lev storing to corresponding pkg
398      ---> conventions are
399           - pkg_ad.flow
400           - pkg_ad_diff.list
401           - pkg_ad_check_lev?_dir.h
402    
403    checkpoint51i_post
404    o merge of the branch-genmake2
405      - knowingly breaks the older genmake
406      - automatic generation of all ALLOW_${PKG_NAME} defines
407      - new testreport supersedes older testscript
408    o large number of package inclusion and header cleanups
409    checkpoint51i_pre
410    
411    o new output for adjoin of global ocean vector invariant
412    o fix for checkpoint of thermodynamic seaice and bulk_force
413    o Steph gchem various cleanups
414    
415    checkpoint 51h_pre
416    o fixed some single quotes
417    o modify gchem pkg to be more versatile
418    o modifications to clean up dic pkg
419    o add pkg/cfc
420    
421    checkpoint51g_post
422    o provide links for ARPACK and ADM*TLM
423    o start removing verification/vero/
424    o update AD-related stuff
425      (in particular some IF-statements in model/src/ routines)
426    o adding to verification/global_ocean.90x40x15/ adjoint of
427      vector invariant setup
428    
429    checkpoint51f_post
430    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
431    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
432      of tracer Green's fucntions for ocean inversion project.
433    
434    checkpoint51f_pre
435    o Added on-the-fly spatial interpolation capability
436        "USE_EXF_INTERPOLATION" to pkg/exf.
437      - This is a temporary Cartesian-grid hack until
438        the super-duper ESMF coupler becomes available.
439      - See verification/global_with_exf/README for usage example.
440      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
441        flags and modified pkg/seaice accordingly.
442    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
443        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
444        non-local transport term.
445    
446    checkpoint51e_post
447    o pkg/mom_vecinv:
448      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
449      - add time-ave diagnostic of vorticity advection.
450    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
451    o atmospheric geopotential: - include water vapor effect;
452                                - use p^kappa in p* scaling.
453    o land pkg: read initial state from files.
454    o AIM : add stratospheric drag in the upper level
455    
456    checkpoint51d_post
457    o change function ILNBLNK (=> last non-blank char.) to return zero
458      (instead of the string length) when the string. char is empty
459    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
460    o modif's to restore TAMC compatibility
461      - avoid "_d" constructs in PARAMETER declarations
462      - avoid interrupting lines by comment lines
463    o Use cluster local disks for purely local I/O
464      vs. globally visible disks needed for ctrl stuff
465      (merged from ecco-branch)
466      - new active_file_loc... and mdsio_..._loc routines
467      - affected packages: autodiff, ctrl, grdchk, mdsio
468    
469    checkpoint51c_post
470    o introducing integer flag debugLevel
471      - debLevZero: suppress all output
472      - debLevA: standard
473      - debLevB: equivalent to current debugMode=.TRUE.
474    o introducing pathname variable mdsioLocalDir for mdsio
475      that can be specified at runtime
476      (relevant for cluster I/O to local disk)
477    `
478    >>>checkpoint51b_post
479    adjoint of ptracers
480    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
481    o extended state in checkpoint_lev?, etc.
482    o alternative ctrl/cost with tr1 or ptracer
483    o new comlev1_bibj_ptracers
484    o new ptracers.flow
485    o made ptracers_forcing same as external_forcing_s
486    o added verification for adjoint with ptracers
487      - adm. grdchk fail so far
488      - tlm. grdchk OK
489      - checked tapelev/comlev recomputations: OK
490    <<<checkpoint51b_pre
491    
492    checkpoint51a_post
493    o added code for biogeochemistry package
494      - new pkgs: dic, gchem
495      - new subroutine in ptracers
496    o modify code for biogeo packages
497      - in model/src and pkg/ptracers
498    
499    checkpoint51
500    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
501      - autodiff, ctrl, exf, grdchk, seaice
502      kept separate packages
503      - cost, ecco, obcs
504    o updating verification/internal_wave, verification/lab_sea
505      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
506    
507    checkpoint50i_post
508    o Preparing next differentiable checkpoint and sync
509      of MAIN vs. ecco-branch
510      - 1st step: this one is differentiable
511      - 2nd step: next(! not this) checkpoint will have updated packages
512                  from ecco-branch)
513    
514    checkpoint50h_post
515    o new package "land": provide surface BC for AIM.
516    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
517    o AIM: use true log-P extrapolation for near surface temp (= as in
518        F.Molteni paper) ; update aim.5l_cs output.
519    o New variable in PARM03 for more flexible pickups
520    o somewhat cleaned package initialisation sequence for
521      ctrl/ cost/ ecco/ in packages_... routines
522    
523    checkpoint50g_post
524    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
525      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
526      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
527        made the default because of faster convergence than ADI
528    
529    checkpoint50f_post
530    o exf totally restructured
531      - replaced all exf_set_ routines by one generic exf_set_gen.F
532        and made sure it's still differentiable
533      - split exf_getffields.F into new exf_bulkformulae.F
534      - exf_inscal_/exf_outscal_ suffixes consistent with field names
535      - updated adjoint/makefile and relevant verif. accordingly
536    
537    checkpoint50f_pre
538     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
539          + change Evap over land. (update aim.5l_cs output)
540     o added missing .cvsignores and made uniform across expts
541     o changed configuration of tidal_basin_2d expt
542     o added pkg/debug functions for tracing code in fatal crashes
543     o tidied pkg/monitor to use MONITOR_OPTIONS.h
544     o new fn in pkg/monitor to stop model if solution grows too big
545     o removed lots of single quotes from comments
546    
547    checkpoint50e_post
548    o make KPP work with PTRACERS
549     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
550       nearly a copy of kpp_transport_s
551     - there is no analogue to SurfaceTendencyS, so I have to use
552       gPtr(of the surface layer) instead
553    o add a new platform SunFire+mpi (SunFire 15000) to genmake
554    checkpoint50e_pre
555    
556    checkpoint50d_post
557    o change kpp output from multiple-record state files to single-record state
558      files analogous to write_state.F
559    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
560      analogous to the cg2d-related output.
561    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
562      so that writing to internal file fn (with length 512) fails.
563    checkpoint50d_pre
564    
565    checkpoint50c_post
566    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
567    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
568    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
569    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
570    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
571    
572    checkpoint50c_pre
573    Merging from release1_p13:
574    o bug fix for pkg/seaice dynamic solver
575    o Added SEAICE_initialHEFF to pkg/seaice
576    
577    checkpoint50b_post
578    o store u*,v* in gU,V instead of in guNm1,gvNm1
579    o in order to put the momForcing out of the Adams-Bashforth:
580      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
581      to timestep.F
582    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
583    o re-generate output for highly sensitive test-exp:
584       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
585    
586    checkpoint50b_pre
587    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
588    o corrected CPP option mismatch in exf_Bulk... functions for case
589      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
590    
591    checkpoint50a_post
592    o Bug fix for merging between c50 and KPP.
593      ikey was passed from thermodynamics to kpp_calc via
594      common block rather than being recomputed in kpp_calc,
595      in contradiction with new key itdkey.
596      New key ikppkey created, and tamc.h headers updated.
597    
598    checkpoint50
599    - 2nd step of merge with ecco-branch:
600      merge changes in ecco-branch back into main trunk
601    - bug fix in find_alpha
602    - more storing in gmredi_calc_tensor.F, kpp_routines.F
603    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
604    - merged some sliced AD support routines
605    
606  checkpoint49  checkpoint49
607    merged from ecco-branch:
608    o exf:
609      - Enable initialisation of forcing fields to constant
610        (runtime) values.
611      - in exf_getffields.F
612        Reduce i-/j-loop to interior domain, discarding overlaps.
613        That also fixes wrong TAF-key computations for key_1, key_2
614        with bulf formulae.
615      - exf_init.F modify #ifdef for exf_init_evap
616      - exf_getffieldrec.F, ctrl_getrec.F
617        The following INT-usages are not safe:
618          fldsecs  = int(fldsecs/fldperiod)*fldperiod
619          fldcount = int(fldsecs/fldperiod) + 1
620        and were modified.
621    o autodiff: checkpoint_lev...
622      - updated storing for bulk formulae (some arrays were missing)
623      - added state for seaice package
624      - synchronized with main branch
625    o DIVA:
626      Modif.s in
627      - the_main_loop.F
628      - the_model_main.F
629      and added cost_final_restore.F cost_final_store.F
630      o With these changes, it is possible to fully separate
631        the first forward run to compute the cost function (mdthe_main_loop)
632        and adjoint runs over individual DIVA intervals (adthe_main_loop)
633        into separate model executions.
634        This enables better tuning of DIVA to given queue sizes.
635      o Loss of cost function value in consecutive DIVA runs is
636        fixed by storing to 'costfinal' file.
637      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
638        beginning/end of adjoint integration is accounted for.
639      The current changes apply to TAF-1.4.26.
640      TAF has one remaining bug, requiring one manual change
641      (see MITgcm manual).
642    o cal: synchronized between MAIN and ecco-branch
643    
644    checkpoint48i_post
645  o Changes to restore differentiability of code w.r.t. previous tag  o Changes to restore differentiability of code w.r.t. previous tag
646    (mostly adding new routines to make list and replacing    (mostly adding new routines to make list and replacing
647    pressure by totPhiHyd).    pressure by totPhiHyd).

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