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revision 1.145 by heimbach, Fri Mar 21 23:20:36 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  checkpoint50a_post
592  o Bug fix for merging between c50 and KPP.  o Bug fix for merging between c50 and KPP.
593    ikey was passed from thermodynamics to kpp_calc via    ikey was passed from thermodynamics to kpp_calc via

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