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revision 1.141 by heimbach, Fri Feb 28 05:21:22 2003 UTC revision 1.281 by mlosch, Mon Apr 19 23:25:15 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 small fixes in the cal-package:
7      - set reference date to first of January for the 'model'-calendar
8      - failing of cal_CheckDate in cal_FullDate now actually results in a
9        warning
10    o small modifications in exf-package to increase flexibility:
11      - change climtempfreeze from a constant to a runtime parameter that
12        is specified in data.exf_clim (default = -1.9)
13      - introduce runtime parameter windstressmax (default = 2.0) that is
14        specified in data.exf
15    o fix in pkg/thsice:
16      - update Evap (Tsf changes) to be consistent with Latent heat flux
17      - maintain snow precipitation unchanged (even if Tsf >=0).
18     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
19    
20    checkpoint52m_post
21    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
22      this does not change any of the results, because myIter=0 in swfrac always
23      lead to jwtype=2 (the default anyway), but the call makes little sense
24      as a default
25    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
26    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
27      atmospheric model (AIM) to use it ; add a "slab ocean" component.
28    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
29    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
30    o extending useSingleCpuIO option to work with new exch2 I/O format
31      - old-style, missing-tile I/O is still accessible by defining CPP
32        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
33    o monitor package can write to NetCDF files and/or STDOUT
34    o fix re-definition bug in MNC_GRID_INIT_ALL()
35    o doc/api_reference added
36      - a framework for building an API Reference Manual using all
37        the "protex" comments embedded in the code
38      - see pkg/generic_advdiff, pkg/mnc for examples
39    o MNC:
40      - make myThid the last argument for all subroutines
41      - new default for the grid files: NO halos
42      - add useMNC and other run-time flags
43      - separate per-file-group handling of the unlimited dimension
44      - early initialization of MNC w/ flags read at the eeboot stage
45        and lookup tables set in initialize_fixed
46      - write all MNC output to a freshly-created directory
47    o thermodynamics sea-ice (thsice) is now tested with testreport.
48    o test exp. advect_cs: use the standard cs32 grid ; update output.
49    o Added functionality to grdchk:
50      pick global i,j,k position (or nearest wet) where to perform check.
51    
52    checkpoint52l_post
53    o new land formulation:
54      a) use ground enthalpy as prognostic variable to ensure exact
55         energy conservation.
56      b) account for water temperature and for latent heat of freezing
57         in all processes (rain, run-off, ground storage)
58      c) compute surface and ground temperature implicitly.
59    o aim_v23 modification for new land model:
60      a) Treat separately land / ocean / sea-ice surface fluxes
61         to allow implicit computation of land & sea-ice surface temp.
62      b) add snow precipitation.
63    checkpoint52l_pre
64    
65    o fix problem (when 1 tile is empty) in min/max monitor.
66    o fix bug in timeAve (u,vZetatave in common block)
67    o no restoring terms under ice for pkg/seaice
68    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
69    o bug fix for pkg/seaice pickups
70    o change MNC call locations and add coordinate attributes
71    o mask vorticity at the corner ; affects global_ocean.cs output
72    o fix ini_curvilinear_grid ; test CS experiments with mpi
73    o aim.5l_cs: modify sea-ice fraction input file ; update output
74    o exf: Adding simple range check routine for exf fields after read
75    
76    checkpoint52k_post
77    o removed top-level directory "diags"
78      - we migrated these functions to pkg/timeave a long time ago
79    o fixed bug introduced in pkg/monitor
80    o accuracy ctrlprec = 32 insuffient for gradient checks using
81      averaged fields (I/O via cost_averages)
82      -> use ctrl.h in active_file*.F to control I/O precision.
83    o paramter list of CALL ADTHE_MAIN_LOOP
84    o added initial do_the_model_io to ecco
85    o set all ...Freq to zero after cost_final
86      taveFreq, dumpFreq, pChkptFreq
87    o MAIN and ECCO differentiability restored
88    
89    checkpoint52j_post
90    o fix nchklev in tamc.h for global_ocean...
91    o Bringing flow and store directives up-to-date
92    o Really weird thing!
93      call do_the_model_io from the_main_loop with parameters
94      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
95      TAF places a faulty re-call of initialise_varia
96      after cost_final call which should not be there!
97    checkpoint52j_pre
98    
99    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
100      error messages
101    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
102    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
103      debug output
104    o modfied mdsio_writefield.F to handle non-global files under exch2
105    o update AIM Cubed-Sphere exp (aim.5l_cs):
106      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
107    o update AIM Equatorial Channel exp:
108      use standard aim_v23 pkg and change the SST fields to be more realistic.
109    o globalFile now works with exch2
110    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
111      mon_vort3.F to make exch2 friendly with >1 tile per cube face
112    o limit timeave output for hi-res integrations
113    
114    checkpoint52i_post
115    o removed CPP_EEOPTIONS.h from verification/*/code
116    o updated the tiling for global_ocean_pressure
117    checkpoint52i_pre
118    
119    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
120      the old pkg/aim).
121    
122    checkpoint52h_pre
123    o shortened offending lines in exch2_send_rx?.template
124    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
125    o genmake2: add build & execute test for NetCDF code
126    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
127      old grid files, moved CPP_EEMACROS.h to pkg/exch2
128    o added useSingleCPUIO flag to monitor.F and mon_out.F
129    o added temporary hack for sea-ice dynamics on the cube:
130      metric terms are ignored and it is assumed that
131      there is no sea-ice on cube faces 1, 2, 4, and 5.
132    
133    checkpoint52f_post
134    o added exch2 cube routines to pkg/exch2
135    o modified hs94.cs-32x32x5 to use it
136    o added new grid files to hs94.cs-32x32x5
137    checkpoint52f_pre
138    
139    checkpoint52e_post
140    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
141      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
142    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
143      to work with implicit vertical advection and AB ;
144    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
145    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
146     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
147    checkpoint52e_pre
148    
149    o fix bug in impldiff when Nr=1 or Nr=2.
150    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
151    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
152    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
153      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
154    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
155    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
156    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
157    
158    checkpoint52d_post
159    o re-tiled many expts to allow comparison in multi-processor mode
160      - updated output accordingly
161      - changed hs94.128x64x5 to use intial T from file rather than use the
162        random number generator
163    o add infrastructure in model routines for fizhi and gridalt packages
164    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
165    o changes to permit hi-res, cubed-sphere, configuration
166      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
167      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
168      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
169        of surface winds for the cube
170      (A verification experiment, based on global_ocean.cs32x15, but with
171       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
172       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
173       complete with example surface forcing files and matlab scripts to look
174       at the output and compare it with that of global_ocean.cs32x15.)
175    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
176       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
177       to conform to the common rule.
178    o check-in the first version of the coupler + interfaces for multi-components
179       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
180       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
181       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
182       - ocean and atmos. share the same horizontal grid (no interpolation).
183       - exchanges between component and coupler is done in forward_step
184    o new verification experiment, cpl_aim+ocn:
185       coupled ocean - AIM atmosphere on cs32 grid.
186    
187    checkpoint52d_pre
188    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
189    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
190    
191    checkpoint52c_post
192    o Fixing OPTIONS files for use of exf:
193      - ALLOW_ECCO not needed
194      - ECCO_CPPOPTIONS.h should not be included from
195        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
196        as has been the case in the past
197      - All cal/exf related options are currently set in
198        single header file. Should remain so until we
199        agree on a consistent new policy.
200    o Removed all CPP options for cal package.
201      cal has no more CPP options.
202    o modified STOREs in GAD_ADVECTION
203    o corrected key comp. for passkey
204    
205    checkpoint52b_post
206    o new version: "thsice" of thermodynamic sea-ice pkg:
207     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
208     - modify fluxes but do not change theta directly;
209     - light cleaning of bulk_force pkg (still needed with thsice).
210     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
211       + output_thsice.txt to test thsice & bulk_force pkgs.
212    o put back grid & coriolis monitor output.
213    checkpoint52b_pre
214    
215    o call "do_the_model_io" at the beginning (=> dump initial state)
216    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
217    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
218      (need info on NUMBER_OF_PTRACERS)
219    o missing PTRACERS headers in some routines
220    o default tamc.h in pkg/autodiff supposed to crash
221      to ensure proper customization
222    
223    checkpoint52a_post
224    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
225      - moved surfaceTendencyTice from pkg/seaice to main code
226      - subroutine FREEZE_SURFACE now limits only surface temperature
227        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
228        => new output.txt for global_ocean.cs32x15 & global_with_exf
229      - keep the old version of FREEZE for backward compatibility;
230        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
231      - corresponding modifs for TAF directives
232    o added surface flux output variables to TIMEAVE_STATVARS
233    o time-averaged output for pkg/ptracers
234    o fix problem with ECCO-related divided adjoint
235      snapshot file was missing some ad-variables,
236      but no warning issued by TAF
237    
238    checkpoint52a_pre
239    o some bug fixes for #undef REAL4_IS_SLOW
240    
241    checkpoint52 = ecco_c52_e35
242    o after testing adjoints of checkpoint51u_post
243    
244    checkpoint51u_post
245    o this is the post-merge tag of the ecco-branch
246      (needs another clean checkout and re-testing)
247    o various natl_box_adjoint configs and results
248      but no input fields
249    o obcs adjoint not yet merged!
250    o adding ECCO global 1x1 and 2x2 degree configs
251    o updated/extended some store directives for seaice
252    o pkg/ecco now containes ecco-specific part of cost function
253    o top level routines the_main_loop, forward_step
254      supersede those in model/src/
255      previous input data.cost now in data.ecco
256      (new namelist ecco_cost_nml)
257    o in ctrl/ cleaned some cross-dependencies and updated CPP options
258    
259    checkpoint51t_post
260    o this is the pre-merge tag of the ecco-branch
261    
262    checkpoint51s_post
263    o cleanup: removed various obsolete #define-s
264    o pkg/grdchk
265      - renamed 'ph-grd 3' to 'grad-res'
266      - merged from ecco-branch
267        (remaining bug fixes for obcs gradient checks)
268      - additional high-precision output for testreport
269        (grep for 'precision_grdchk_result')
270    
271    checkpoint51r_post
272    o cleaned up or removed CPP_OPTIONS.h files
273    o updated results for some of the tests to reflect the new
274      optfiles (-ieee: -O0 instead of -O3)
275    
276    checkpoint51q_post
277    o cd_code:
278      - moved cd_scheme.F -> cd_code_scheme.F
279      - separate read_checkpoint from cd_code_ini_vars.F
280      - separated cd_code part from write_checkpoint
281      - updated AD_SOURCE, generated .flow
282      - added CD_CODE_VARS.h to the_main_loop
283      - Moving cd_code specific store dir.s to pkg/cd_code
284    o ctrl package totally restructured
285      - pack/unpack now optional and decoupled from
286        xx_/adxx_ I/O
287      - ctrl_pack/unpack cleaned
288        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
289      - confined inclusion of AD_CONFIG.h to where necessary.
290    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
291    
292    checkpoint51p_post
293    o create initial cd_code package
294      - WARNING: the initialization of fields within packages
295        is broken because INI_FIELDS (where READ_CHECKPOINT is
296        called) is called *before* PACKAGES_INIT_VARIABLES.
297        This seems to be backwards since
298        1) its important to initially zero the entire field including
299           the "halo" region
300        2) zeroing needs to be done *before* reading pickup info
301           and the pickup call might or might not happen in any
302           particular run
303      - this needs an overhaul for R2
304    o cleanup verification/*/code/GMREDI_OPTIONS.h
305    o cleanup testreport
306    
307    checkpoint51o_post
308    o bringing AD-related verif's up to date with genmake2
309      - carbon/
310      - global_ocean.90x40x15/
311      - hs.94.1x64x5/
312      - (front_relax/ )
313    o (more) consistent directory structure for AD-related verif.'s
314    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
315    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
316    o bug fix in find_alpha.F for MDJWF:
317      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
318        change rho -> rho-rhoConst
319      - replace call find_rho to find_rhonum
320    o initialisation of rFlx extended to full array (required by TAF)
321      and shifted to thermodynamics
322    o removed PTRACERS.h in ptracers routine
323    o added surfacetendencyPtr to S/R parameter list pracers_forcing
324    o Correcting initialisations for fVerU, fVerV.
325    o helping TAF to recognize dependency on kUp for
326      fVerU, fVerV
327    o Replacing delZ by delR in pkg/ctrl/
328    checkpoint51o_pre
329    
330    o undid all of cp51 pending some cleanups and discussion
331    o added the [#include "AD_CONFIG.h"] statement to all files that need
332       it for adjoint/tl #defines
333     o re-worked the build logic in genmake2 to support AD_CONFIG.h
334     o removed tools/genmake since it no longer works
335    
336    checkpoint51n_post
337    o modifications to make FREEZE flux visible to pkg/kpp
338      - moved surfaceTendencyTice from pkg/seaice to main code
339      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
340      - subroutine FREEZE now limits only surface temperature
341        (this means new output.txt for global_ocean.90x40x15,
342         global_ocean.cs32x15, and global_with_exf)
343    o added surface flux output variables to TIMEAVE_STATVARS
344    
345    checkpoint51n_pre
346    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
347    o added [#include "AD_CONFIG.h"] to all files that use the following
348      defines:
349      - ALLOW_ADJOINT_RUN
350      - ALLOW_TANGENTLINEAR_RUN
351      - ALLOW_ECCO_OPTIMIZATION
352    
353    checkpoint51m_post
354    o incorporating changes to get TAMC/TAF working in genmake2
355      - added new TAMC/TAF targets to the Makefile
356      - various cleanups related to package handling
357      - these changes should have no impact on the forward model
358    
359    checkpoint51l_post
360    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
361     - faster algorithm for cal_addtime.F
362     - higher precision arithmetic, where needed
363     - pkg/exf *startdate variables changed from calendar date to
364       model integration time
365    
366    checkpoint51l_pre
367    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
368    o enable to apply restoring on S & T only in a latitude band.
369    o update output (external_forcing_surf modif. change truncation errors)
370       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
371    
372    checkpoint51k_post
373    o change default to: useNHMTerms=.FALSE.
374     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
375       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
376     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
377        exp1, ideal_2D_oce
378     - change data file of oceanic exp (leave the results unchanged for now)
379       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
380    o set gravitySign automatically according to the vertical coordinate used
381      (and change sign: back to "logical" value: +1 when R increases downward)
382    o added an include barrier to the default CPP_OPTIONS.h and
383      removed the #include "PACKAGES_CONFIG.h" from it
384    o fix a bug in mom_fluxform (from chk51j_post)
385    
386    checkpoint51j_post
387    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
388    o adjusted some flow directives (dynamics, thermodynamics)
389    o added cubed-sphere case to test cost function
390    o heckpoint_lev?_directives.h now include
391      pkg-specific directives, whenever those are enabled.
392    o Moving pkg-specific flow directives to corresponding pkg
393      Moving pkg-specific differentiation list to corresponding pkg
394      Moving pkg-specific checkpoint-lev storing to corresponding pkg
395      ---> conventions are
396           - pkg_ad.flow
397           - pkg_ad_diff.list
398           - pkg_ad_check_lev?_dir.h
399    
400    checkpoint51i_post
401    o merge of the branch-genmake2
402      - knowingly breaks the older genmake
403      - automatic generation of all ALLOW_${PKG_NAME} defines
404      - new testreport supersedes older testscript
405    o large number of package inclusion and header cleanups
406    checkpoint51i_pre
407    
408    o new output for adjoin of global ocean vector invariant
409    o fix for checkpoint of thermodynamic seaice and bulk_force
410    o Steph gchem various cleanups
411    
412    checkpoint 51h_pre
413    o fixed some single quotes
414    o modify gchem pkg to be more versatile
415    o modifications to clean up dic pkg
416    o add pkg/cfc
417    
418    checkpoint51g_post
419    o provide links for ARPACK and ADM*TLM
420    o start removing verification/vero/
421    o update AD-related stuff
422      (in particular some IF-statements in model/src/ routines)
423    o adding to verification/global_ocean.90x40x15/ adjoint of
424      vector invariant setup
425    
426    checkpoint51f_post
427    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
428    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
429      of tracer Green's fucntions for ocean inversion project.
430    
431    checkpoint51f_pre
432    o Added on-the-fly spatial interpolation capability
433        "USE_EXF_INTERPOLATION" to pkg/exf.
434      - This is a temporary Cartesian-grid hack until
435        the super-duper ESMF coupler becomes available.
436      - See verification/global_with_exf/README for usage example.
437      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
438        flags and modified pkg/seaice accordingly.
439    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
440        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
441        non-local transport term.
442    
443    checkpoint51e_post
444    o pkg/mom_vecinv:
445      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
446      - add time-ave diagnostic of vorticity advection.
447    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
448    o atmospheric geopotential: - include water vapor effect;
449                                - use p^kappa in p* scaling.
450    o land pkg: read initial state from files.
451    o AIM : add stratospheric drag in the upper level
452    
453    checkpoint51d_post
454    o change function ILNBLNK (=> last non-blank char.) to return zero
455      (instead of the string length) when the string. char is empty
456    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
457    o modif's to restore TAMC compatibility
458      - avoid "_d" constructs in PARAMETER declarations
459      - avoid interrupting lines by comment lines
460    o Use cluster local disks for purely local I/O
461      vs. globally visible disks needed for ctrl stuff
462      (merged from ecco-branch)
463      - new active_file_loc... and mdsio_..._loc routines
464      - affected packages: autodiff, ctrl, grdchk, mdsio
465    
466    checkpoint51c_post
467    o introducing integer flag debugLevel
468      - debLevZero: suppress all output
469      - debLevA: standard
470      - debLevB: equivalent to current debugMode=.TRUE.
471    o introducing pathname variable mdsioLocalDir for mdsio
472      that can be specified at runtime
473      (relevant for cluster I/O to local disk)
474    `
475    >>>checkpoint51b_post
476    adjoint of ptracers
477    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
478    o extended state in checkpoint_lev?, etc.
479    o alternative ctrl/cost with tr1 or ptracer
480    o new comlev1_bibj_ptracers
481    o new ptracers.flow
482    o made ptracers_forcing same as external_forcing_s
483    o added verification for adjoint with ptracers
484      - adm. grdchk fail so far
485      - tlm. grdchk OK
486      - checked tapelev/comlev recomputations: OK
487    <<<checkpoint51b_pre
488    
489    checkpoint51a_post
490    o added code for biogeochemistry package
491      - new pkgs: dic, gchem
492      - new subroutine in ptracers
493    o modify code for biogeo packages
494      - in model/src and pkg/ptracers
495    
496    checkpoint51
497    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
498      - autodiff, ctrl, exf, grdchk, seaice
499      kept separate packages
500      - cost, ecco, obcs
501    o updating verification/internal_wave, verification/lab_sea
502      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
503    
504    checkpoint50i_post
505    o Preparing next differentiable checkpoint and sync
506      of MAIN vs. ecco-branch
507      - 1st step: this one is differentiable
508      - 2nd step: next(! not this) checkpoint will have updated packages
509                  from ecco-branch)
510    
511    checkpoint50h_post
512    o new package "land": provide surface BC for AIM.
513    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
514    o AIM: use true log-P extrapolation for near surface temp (= as in
515        F.Molteni paper) ; update aim.5l_cs output.
516    o New variable in PARM03 for more flexible pickups
517    o somewhat cleaned package initialisation sequence for
518      ctrl/ cost/ ecco/ in packages_... routines
519    
520    checkpoint50g_post
521    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
522      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
523      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
524        made the default because of faster convergence than ADI
525    
526    checkpoint50f_post
527    o exf totally restructured
528      - replaced all exf_set_ routines by one generic exf_set_gen.F
529        and made sure it's still differentiable
530      - split exf_getffields.F into new exf_bulkformulae.F
531      - exf_inscal_/exf_outscal_ suffixes consistent with field names
532      - updated adjoint/makefile and relevant verif. accordingly
533    
534    checkpoint50f_pre
535     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
536          + change Evap over land. (update aim.5l_cs output)
537     o added missing .cvsignores and made uniform across expts
538     o changed configuration of tidal_basin_2d expt
539     o added pkg/debug functions for tracing code in fatal crashes
540     o tidied pkg/monitor to use MONITOR_OPTIONS.h
541     o new fn in pkg/monitor to stop model if solution grows too big
542     o removed lots of single quotes from comments
543    
544    checkpoint50e_post
545    o make KPP work with PTRACERS
546     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
547       nearly a copy of kpp_transport_s
548     - there is no analogue to SurfaceTendencyS, so I have to use
549       gPtr(of the surface layer) instead
550    o add a new platform SunFire+mpi (SunFire 15000) to genmake
551    checkpoint50e_pre
552    
553    checkpoint50d_post
554    o change kpp output from multiple-record state files to single-record state
555      files analogous to write_state.F
556    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
557      analogous to the cg2d-related output.
558    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
559      so that writing to internal file fn (with length 512) fails.
560    checkpoint50d_pre
561    
562    checkpoint50c_post
563    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
564    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
565    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
566    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
567    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
568    
569    checkpoint50c_pre
570    Merging from release1_p13:
571    o bug fix for pkg/seaice dynamic solver
572    o Added SEAICE_initialHEFF to pkg/seaice
573    
574    checkpoint50b_post
575    o store u*,v* in gU,V instead of in guNm1,gvNm1
576    o in order to put the momForcing out of the Adams-Bashforth:
577      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
578      to timestep.F
579    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
580    o re-generate output for highly sensitive test-exp:
581       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
582    
583    checkpoint50b_pre
584    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
585    o corrected CPP option mismatch in exf_Bulk... functions for case
586      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
587    
588    checkpoint50a_post
589    o Bug fix for merging between c50 and KPP.
590      ikey was passed from thermodynamics to kpp_calc via
591      common block rather than being recomputed in kpp_calc,
592      in contradiction with new key itdkey.
593      New key ikppkey created, and tamc.h headers updated.
594    
595    checkpoint50
596    - 2nd step of merge with ecco-branch:
597      merge changes in ecco-branch back into main trunk
598    - bug fix in find_alpha
599    - more storing in gmredi_calc_tensor.F, kpp_routines.F
600    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
601    - merged some sliced AD support routines
602    
603  checkpoint49  checkpoint49
604    merged from ecco-branch:
605    o exf:
606      - Enable initialisation of forcing fields to constant
607        (runtime) values.
608      - in exf_getffields.F
609        Reduce i-/j-loop to interior domain, discarding overlaps.
610        That also fixes wrong TAF-key computations for key_1, key_2
611        with bulf formulae.
612      - exf_init.F modify #ifdef for exf_init_evap
613      - exf_getffieldrec.F, ctrl_getrec.F
614        The following INT-usages are not safe:
615          fldsecs  = int(fldsecs/fldperiod)*fldperiod
616          fldcount = int(fldsecs/fldperiod) + 1
617        and were modified.
618    o autodiff: checkpoint_lev...
619      - updated storing for bulk formulae (some arrays were missing)
620      - added state for seaice package
621      - synchronized with main branch
622    o DIVA:
623      Modif.s in
624      - the_main_loop.F
625      - the_model_main.F
626      and added cost_final_restore.F cost_final_store.F
627      o With these changes, it is possible to fully separate
628        the first forward run to compute the cost function (mdthe_main_loop)
629        and adjoint runs over individual DIVA intervals (adthe_main_loop)
630        into separate model executions.
631        This enables better tuning of DIVA to given queue sizes.
632      o Loss of cost function value in consecutive DIVA runs is
633        fixed by storing to 'costfinal' file.
634      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
635        beginning/end of adjoint integration is accounted for.
636      The current changes apply to TAF-1.4.26.
637      TAF has one remaining bug, requiring one manual change
638      (see MITgcm manual).
639    o cal: synchronized between MAIN and ecco-branch
640    
641    checkpoint48i_post
642  o Changes to restore differentiability of code w.r.t. previous tag  o Changes to restore differentiability of code w.r.t. previous tag
643    (mostly adding new routines to make list and replacing    (mostly adding new routines to make list and replacing
644    pressure by totPhiHyd).    pressure by totPhiHyd).

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