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revision 1.108 by dimitri, Thu Dec 5 08:43:02 2002 UTC revision 1.301 by adcroft, Mon May 24 14:10:02 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    
7    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
8      of mom_common/
9      - simple re-arrangement of instructions within computing loop
10    checkpoint53d_pre
11    
12    checkpoint53c_post
13    o new version of coupler for AIM+thSIce and Ocean models
14     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
15     - land: change Evaporation of snow
16     - aim with thSIce: fix bug in snow-precip.
17    o changes to calc_gw.F
18     - bug fix for w^2 term near the bottom boundary
19     - (hopefully) improve the lateral slip boundary condtions for use with
20        partial/looped cells
21      - because the bug fix changes two verification experiments anyway (exp5
22        and plume on slope), change the lateral boundary condition from half slip
23        to the value of no_slip_sides
24    o ebm package wasnt quite up to the parallel task. Fixed that.
25    o Adjoint of EBM package + verification
26      * TLM OK
27      * ADM not sufficient accuracy yet (needs further testing)
28    
29    checkpoint53b_post
30    o Commiting new energy balance model to repository
31      * package is pkg/ebm
32      * verif. is verification/global_ocean_ebm
33      * references are in ebm_driver.F
34    C      * X. Wang, P. Stone and J. Marotzke, 1999:
35    C        Global thermohaline circulation. Part I:
36    C        Sensitivity to atmospheric moisture transport.
37    C        J. Climate 12(1), 71-82
38    C      * X. Wang, P. Stone and J. Marotzke, 1999:
39    C        Global thermohaline circulation. Part II:
40    C        Sensitivity with interactive transport.
41    C        J. Climate 12(1), 83-91
42    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
43    C        Destabilization of the thermohaline circulation
44    C        by atmospheric eddy transports.
45    C        J. Climate 7(12), 1870-1882
46    o Will need long integration testing.
47    checkpoint53b_pre
48    
49    o created pkg/mom_common in preparation for variable viscosity code
50    o renamed and split ini_mnc_io
51    o pkg/land: only liquid water can diffuse or run-off
52    o AIM using land: soil wetness availability account for snow
53    o added printMapIncludesZeros to EEPARMS namelist
54    
55    checkpoint53a_post
56    o restore TAMC compatiility for exf_constants.h
57      (no usage of _d in .h)
58    o Additional storing in KPP in an attempt to fix
59      TAMC problem with adjoint of KPP code.
60      (no success...)
61      Identical code works fine with TAF.
62    o Fixed verification/natl_box_adjoint experiments.
63      Initial conditions for Experiments 4 and 5 are now
64      set to "SEAICE_initialHEFF=0", which is more reasonable,
65      and hence gives results closer to that of Experiment 2.
66      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
67    
68    checkpoint53
69    o stable checkpoint with up to date adjoint
70      TLM tests only run for 1st grdchk at the moment. Its unclear if
71      this is a code problem or a problem with resetting code for g_
72      variables that is being autogenerated wrong.
73      Otherwise:
74       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
75       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
76         are both still in chaos following their security messes.
77    
78    checkpoint52n_post
79    o various build (mostly genmake2) changes including:
80      - ability to build/run more easily within Cygwin and MacOS X
81      - more complicated Makefiles with a stronger dependence on Gnu Make
82    o pkg/seaice modifications
83      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
84        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
85        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
86      - changed proxy for geostrophic velocity and updated
87        verification/lab_sea/results/* accordingly
88      - removed ADI dynamic solver from pkg/seaice
89      - replaced all occurrences of 1/CSTICE or 1/CSUICE
90        they caused a segmentation fault under certain circumstances
91      - removed unused field WATR
92    o bug fix in exf-package:
93      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
94         now reflect that.
95    o small fixes in the cal-package:
96      - set reference date to first of January for the 'model'-calendar
97      - failing of cal_CheckDate in cal_FullDate now actually results in a
98        warning
99    o small modifications in exf-package to increase flexibility:
100      - change climtempfreeze from a constant to a runtime parameter that
101        is specified in data.exf_clim (default = -1.9)
102      - introduce runtime parameter windstressmax (default = 2.0) that is
103        specified in data.exf
104    o fix in pkg/thsice:
105      - update Evap (Tsf changes) to be consistent with Latent heat flux
106      - maintain snow precipitation unchanged (even if Tsf >=0).
107     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
108    
109    checkpoint52m_post
110    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
111      this does not change any of the results, because myIter=0 in swfrac always
112      lead to jwtype=2 (the default anyway), but the call makes little sense
113      as a default
114    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
115    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
116      atmospheric model (AIM) to use it ; add a "slab ocean" component.
117    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
118    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
119    o extending useSingleCpuIO option to work with new exch2 I/O format
120      - old-style, missing-tile I/O is still accessible by defining CPP
121        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
122    o monitor package can write to NetCDF files and/or STDOUT
123    o fix re-definition bug in MNC_GRID_INIT_ALL()
124    o doc/api_reference added
125      - a framework for building an API Reference Manual using all
126        the "protex" comments embedded in the code
127      - see pkg/generic_advdiff, pkg/mnc for examples
128    o MNC:
129      - make myThid the last argument for all subroutines
130      - new default for the grid files: NO halos
131      - add useMNC and other run-time flags
132      - separate per-file-group handling of the unlimited dimension
133      - early initialization of MNC w/ flags read at the eeboot stage
134        and lookup tables set in initialize_fixed
135      - write all MNC output to a freshly-created directory
136    o thermodynamics sea-ice (thsice) is now tested with testreport.
137    o test exp. advect_cs: use the standard cs32 grid ; update output.
138    o Added functionality to grdchk:
139      pick global i,j,k position (or nearest wet) where to perform check.
140    
141    checkpoint52l_post
142    o new land formulation:
143      a) use ground enthalpy as prognostic variable to ensure exact
144         energy conservation.
145      b) account for water temperature and for latent heat of freezing
146         in all processes (rain, run-off, ground storage)
147      c) compute surface and ground temperature implicitly.
148    o aim_v23 modification for new land model:
149      a) Treat separately land / ocean / sea-ice surface fluxes
150         to allow implicit computation of land & sea-ice surface temp.
151      b) add snow precipitation.
152    checkpoint52l_pre
153    
154    o fix problem (when 1 tile is empty) in min/max monitor.
155    o fix bug in timeAve (u,vZetatave in common block)
156    o no restoring terms under ice for pkg/seaice
157    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
158    o bug fix for pkg/seaice pickups
159    o change MNC call locations and add coordinate attributes
160    o mask vorticity at the corner ; affects global_ocean.cs output
161    o fix ini_curvilinear_grid ; test CS experiments with mpi
162    o aim.5l_cs: modify sea-ice fraction input file ; update output
163    o exf: Adding simple range check routine for exf fields after read
164    
165    checkpoint52k_post
166    o removed top-level directory "diags"
167      - we migrated these functions to pkg/timeave a long time ago
168    o fixed bug introduced in pkg/monitor
169    o accuracy ctrlprec = 32 insuffient for gradient checks using
170      averaged fields (I/O via cost_averages)
171      -> use ctrl.h in active_file*.F to control I/O precision.
172    o paramter list of CALL ADTHE_MAIN_LOOP
173    o added initial do_the_model_io to ecco
174    o set all ...Freq to zero after cost_final
175      taveFreq, dumpFreq, pChkptFreq
176    o MAIN and ECCO differentiability restored
177    
178    checkpoint52j_post
179    o fix nchklev in tamc.h for global_ocean...
180    o Bringing flow and store directives up-to-date
181    o Really weird thing!
182      call do_the_model_io from the_main_loop with parameters
183      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
184      TAF places a faulty re-call of initialise_varia
185      after cost_final call which should not be there!
186    checkpoint52j_pre
187    
188    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
189      error messages
190    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
191    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
192      debug output
193    o modfied mdsio_writefield.F to handle non-global files under exch2
194    o update AIM Cubed-Sphere exp (aim.5l_cs):
195      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
196    o update AIM Equatorial Channel exp:
197      use standard aim_v23 pkg and change the SST fields to be more realistic.
198    o globalFile now works with exch2
199    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
200      mon_vort3.F to make exch2 friendly with >1 tile per cube face
201    o limit timeave output for hi-res integrations
202    
203    checkpoint52i_post
204    o removed CPP_EEOPTIONS.h from verification/*/code
205    o updated the tiling for global_ocean_pressure
206    checkpoint52i_pre
207    
208    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
209      the old pkg/aim).
210    
211    checkpoint52h_pre
212    o shortened offending lines in exch2_send_rx?.template
213    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
214    o genmake2: add build & execute test for NetCDF code
215    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
216      old grid files, moved CPP_EEMACROS.h to pkg/exch2
217    o added useSingleCPUIO flag to monitor.F and mon_out.F
218    o added temporary hack for sea-ice dynamics on the cube:
219      metric terms are ignored and it is assumed that
220      there is no sea-ice on cube faces 1, 2, 4, and 5.
221    
222    checkpoint52f_post
223    o added exch2 cube routines to pkg/exch2
224    o modified hs94.cs-32x32x5 to use it
225    o added new grid files to hs94.cs-32x32x5
226    checkpoint52f_pre
227    
228    checkpoint52e_post
229    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
230      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
231    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
232      to work with implicit vertical advection and AB ;
233    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
234    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
235     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
236    checkpoint52e_pre
237    
238    o fix bug in impldiff when Nr=1 or Nr=2.
239    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
240    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
241    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
242      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
243    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
244    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
245    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
246    
247    checkpoint52d_post
248    o re-tiled many expts to allow comparison in multi-processor mode
249      - updated output accordingly
250      - changed hs94.128x64x5 to use intial T from file rather than use the
251        random number generator
252    o add infrastructure in model routines for fizhi and gridalt packages
253    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
254    o changes to permit hi-res, cubed-sphere, configuration
255      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
256      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
257      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
258        of surface winds for the cube
259      (A verification experiment, based on global_ocean.cs32x15, but with
260       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
261       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
262       complete with example surface forcing files and matlab scripts to look
263       at the output and compare it with that of global_ocean.cs32x15.)
264    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
265       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
266       to conform to the common rule.
267    o check-in the first version of the coupler + interfaces for multi-components
268       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
269       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
270       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
271       - ocean and atmos. share the same horizontal grid (no interpolation).
272       - exchanges between component and coupler is done in forward_step
273    o new verification experiment, cpl_aim+ocn:
274       coupled ocean - AIM atmosphere on cs32 grid.
275    
276    checkpoint52d_pre
277    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
278    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
279    
280    checkpoint52c_post
281    o Fixing OPTIONS files for use of exf:
282      - ALLOW_ECCO not needed
283      - ECCO_CPPOPTIONS.h should not be included from
284        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
285        as has been the case in the past
286      - All cal/exf related options are currently set in
287        single header file. Should remain so until we
288        agree on a consistent new policy.
289    o Removed all CPP options for cal package.
290      cal has no more CPP options.
291    o modified STOREs in GAD_ADVECTION
292    o corrected key comp. for passkey
293    
294    checkpoint52b_post
295    o new version: "thsice" of thermodynamic sea-ice pkg:
296     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
297     - modify fluxes but do not change theta directly;
298     - light cleaning of bulk_force pkg (still needed with thsice).
299     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
300       + output_thsice.txt to test thsice & bulk_force pkgs.
301    o put back grid & coriolis monitor output.
302    checkpoint52b_pre
303    
304    o call "do_the_model_io" at the beginning (=> dump initial state)
305    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
306    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
307      (need info on NUMBER_OF_PTRACERS)
308    o missing PTRACERS headers in some routines
309    o default tamc.h in pkg/autodiff supposed to crash
310      to ensure proper customization
311    
312    checkpoint52a_post
313    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
314      - moved surfaceTendencyTice from pkg/seaice to main code
315      - subroutine FREEZE_SURFACE now limits only surface temperature
316        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
317        => new output.txt for global_ocean.cs32x15 & global_with_exf
318      - keep the old version of FREEZE for backward compatibility;
319        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
320      - corresponding modifs for TAF directives
321    o added surface flux output variables to TIMEAVE_STATVARS
322    o time-averaged output for pkg/ptracers
323    o fix problem with ECCO-related divided adjoint
324      snapshot file was missing some ad-variables,
325      but no warning issued by TAF
326    
327    checkpoint52a_pre
328    o some bug fixes for #undef REAL4_IS_SLOW
329    
330    checkpoint52 = ecco_c52_e35
331    o after testing adjoints of checkpoint51u_post
332    
333    checkpoint51u_post
334    o this is the post-merge tag of the ecco-branch
335      (needs another clean checkout and re-testing)
336    o various natl_box_adjoint configs and results
337      but no input fields
338    o obcs adjoint not yet merged!
339    o adding ECCO global 1x1 and 2x2 degree configs
340    o updated/extended some store directives for seaice
341    o pkg/ecco now containes ecco-specific part of cost function
342    o top level routines the_main_loop, forward_step
343      supersede those in model/src/
344      previous input data.cost now in data.ecco
345      (new namelist ecco_cost_nml)
346    o in ctrl/ cleaned some cross-dependencies and updated CPP options
347    
348    checkpoint51t_post
349    o this is the pre-merge tag of the ecco-branch
350    
351    checkpoint51s_post
352    o cleanup: removed various obsolete #define-s
353    o pkg/grdchk
354      - renamed 'ph-grd 3' to 'grad-res'
355      - merged from ecco-branch
356        (remaining bug fixes for obcs gradient checks)
357      - additional high-precision output for testreport
358        (grep for 'precision_grdchk_result')
359    
360    checkpoint51r_post
361    o cleaned up or removed CPP_OPTIONS.h files
362    o updated results for some of the tests to reflect the new
363      optfiles (-ieee: -O0 instead of -O3)
364    
365    checkpoint51q_post
366    o cd_code:
367      - moved cd_scheme.F -> cd_code_scheme.F
368      - separate read_checkpoint from cd_code_ini_vars.F
369      - separated cd_code part from write_checkpoint
370      - updated AD_SOURCE, generated .flow
371      - added CD_CODE_VARS.h to the_main_loop
372      - Moving cd_code specific store dir.s to pkg/cd_code
373    o ctrl package totally restructured
374      - pack/unpack now optional and decoupled from
375        xx_/adxx_ I/O
376      - ctrl_pack/unpack cleaned
377        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
378      - confined inclusion of AD_CONFIG.h to where necessary.
379    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
380    
381    checkpoint51p_post
382    o create initial cd_code package
383      - WARNING: the initialization of fields within packages
384        is broken because INI_FIELDS (where READ_CHECKPOINT is
385        called) is called *before* PACKAGES_INIT_VARIABLES.
386        This seems to be backwards since
387        1) its important to initially zero the entire field including
388           the "halo" region
389        2) zeroing needs to be done *before* reading pickup info
390           and the pickup call might or might not happen in any
391           particular run
392      - this needs an overhaul for R2
393    o cleanup verification/*/code/GMREDI_OPTIONS.h
394    o cleanup testreport
395    
396    checkpoint51o_post
397    o bringing AD-related verif's up to date with genmake2
398      - carbon/
399      - global_ocean.90x40x15/
400      - hs.94.1x64x5/
401      - (front_relax/ )
402    o (more) consistent directory structure for AD-related verif.'s
403    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
404    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
405    o bug fix in find_alpha.F for MDJWF:
406      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
407        change rho -> rho-rhoConst
408      - replace call find_rho to find_rhonum
409    o initialisation of rFlx extended to full array (required by TAF)
410      and shifted to thermodynamics
411    o removed PTRACERS.h in ptracers routine
412    o added surfacetendencyPtr to S/R parameter list pracers_forcing
413    o Correcting initialisations for fVerU, fVerV.
414    o helping TAF to recognize dependency on kUp for
415      fVerU, fVerV
416    o Replacing delZ by delR in pkg/ctrl/
417    checkpoint51o_pre
418    
419    o undid all of cp51 pending some cleanups and discussion
420    o added the [#include "AD_CONFIG.h"] statement to all files that need
421       it for adjoint/tl #defines
422     o re-worked the build logic in genmake2 to support AD_CONFIG.h
423     o removed tools/genmake since it no longer works
424    
425    checkpoint51n_post
426    o modifications to make FREEZE flux visible to pkg/kpp
427      - moved surfaceTendencyTice from pkg/seaice to main code
428      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
429      - subroutine FREEZE now limits only surface temperature
430        (this means new output.txt for global_ocean.90x40x15,
431         global_ocean.cs32x15, and global_with_exf)
432    o added surface flux output variables to TIMEAVE_STATVARS
433    
434    checkpoint51n_pre
435    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
436    o added [#include "AD_CONFIG.h"] to all files that use the following
437      defines:
438      - ALLOW_ADJOINT_RUN
439      - ALLOW_TANGENTLINEAR_RUN
440      - ALLOW_ECCO_OPTIMIZATION
441    
442    checkpoint51m_post
443    o incorporating changes to get TAMC/TAF working in genmake2
444      - added new TAMC/TAF targets to the Makefile
445      - various cleanups related to package handling
446      - these changes should have no impact on the forward model
447    
448    checkpoint51l_post
449    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
450     - faster algorithm for cal_addtime.F
451     - higher precision arithmetic, where needed
452     - pkg/exf *startdate variables changed from calendar date to
453       model integration time
454    
455    checkpoint51l_pre
456    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
457    o enable to apply restoring on S & T only in a latitude band.
458    o update output (external_forcing_surf modif. change truncation errors)
459       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
460    
461    checkpoint51k_post
462    o change default to: useNHMTerms=.FALSE.
463     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
464       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
465     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
466        exp1, ideal_2D_oce
467     - change data file of oceanic exp (leave the results unchanged for now)
468       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
469    o set gravitySign automatically according to the vertical coordinate used
470      (and change sign: back to "logical" value: +1 when R increases downward)
471    o added an include barrier to the default CPP_OPTIONS.h and
472      removed the #include "PACKAGES_CONFIG.h" from it
473    o fix a bug in mom_fluxform (from chk51j_post)
474    
475    checkpoint51j_post
476    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
477    o adjusted some flow directives (dynamics, thermodynamics)
478    o added cubed-sphere case to test cost function
479    o heckpoint_lev?_directives.h now include
480      pkg-specific directives, whenever those are enabled.
481    o Moving pkg-specific flow directives to corresponding pkg
482      Moving pkg-specific differentiation list to corresponding pkg
483      Moving pkg-specific checkpoint-lev storing to corresponding pkg
484      ---> conventions are
485           - pkg_ad.flow
486           - pkg_ad_diff.list
487           - pkg_ad_check_lev?_dir.h
488    
489    checkpoint51i_post
490    o merge of the branch-genmake2
491      - knowingly breaks the older genmake
492      - automatic generation of all ALLOW_${PKG_NAME} defines
493      - new testreport supersedes older testscript
494    o large number of package inclusion and header cleanups
495    checkpoint51i_pre
496    
497    o new output for adjoin of global ocean vector invariant
498    o fix for checkpoint of thermodynamic seaice and bulk_force
499    o Steph gchem various cleanups
500    
501    checkpoint 51h_pre
502    o fixed some single quotes
503    o modify gchem pkg to be more versatile
504    o modifications to clean up dic pkg
505    o add pkg/cfc
506    
507    checkpoint51g_post
508    o provide links for ARPACK and ADM*TLM
509    o start removing verification/vero/
510    o update AD-related stuff
511      (in particular some IF-statements in model/src/ routines)
512    o adding to verification/global_ocean.90x40x15/ adjoint of
513      vector invariant setup
514    
515    checkpoint51f_post
516    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
517    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
518      of tracer Green's fucntions for ocean inversion project.
519    
520    checkpoint51f_pre
521    o Added on-the-fly spatial interpolation capability
522        "USE_EXF_INTERPOLATION" to pkg/exf.
523      - This is a temporary Cartesian-grid hack until
524        the super-duper ESMF coupler becomes available.
525      - See verification/global_with_exf/README for usage example.
526      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
527        flags and modified pkg/seaice accordingly.
528    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
529        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
530        non-local transport term.
531    
532    checkpoint51e_post
533    o pkg/mom_vecinv:
534      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
535      - add time-ave diagnostic of vorticity advection.
536    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
537    o atmospheric geopotential: - include water vapor effect;
538                                - use p^kappa in p* scaling.
539    o land pkg: read initial state from files.
540    o AIM : add stratospheric drag in the upper level
541    
542    checkpoint51d_post
543    o change function ILNBLNK (=> last non-blank char.) to return zero
544      (instead of the string length) when the string. char is empty
545    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
546    o modif's to restore TAMC compatibility
547      - avoid "_d" constructs in PARAMETER declarations
548      - avoid interrupting lines by comment lines
549    o Use cluster local disks for purely local I/O
550      vs. globally visible disks needed for ctrl stuff
551      (merged from ecco-branch)
552      - new active_file_loc... and mdsio_..._loc routines
553      - affected packages: autodiff, ctrl, grdchk, mdsio
554    
555    checkpoint51c_post
556    o introducing integer flag debugLevel
557      - debLevZero: suppress all output
558      - debLevA: standard
559      - debLevB: equivalent to current debugMode=.TRUE.
560    o introducing pathname variable mdsioLocalDir for mdsio
561      that can be specified at runtime
562      (relevant for cluster I/O to local disk)
563    `
564    >>>checkpoint51b_post
565    adjoint of ptracers
566    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
567    o extended state in checkpoint_lev?, etc.
568    o alternative ctrl/cost with tr1 or ptracer
569    o new comlev1_bibj_ptracers
570    o new ptracers.flow
571    o made ptracers_forcing same as external_forcing_s
572    o added verification for adjoint with ptracers
573      - adm. grdchk fail so far
574      - tlm. grdchk OK
575      - checked tapelev/comlev recomputations: OK
576    <<<checkpoint51b_pre
577    
578    checkpoint51a_post
579    o added code for biogeochemistry package
580      - new pkgs: dic, gchem
581      - new subroutine in ptracers
582    o modify code for biogeo packages
583      - in model/src and pkg/ptracers
584    
585    checkpoint51
586    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
587      - autodiff, ctrl, exf, grdchk, seaice
588      kept separate packages
589      - cost, ecco, obcs
590    o updating verification/internal_wave, verification/lab_sea
591      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
592    
593    checkpoint50i_post
594    o Preparing next differentiable checkpoint and sync
595      of MAIN vs. ecco-branch
596      - 1st step: this one is differentiable
597      - 2nd step: next(! not this) checkpoint will have updated packages
598                  from ecco-branch)
599    
600    checkpoint50h_post
601    o new package "land": provide surface BC for AIM.
602    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
603    o AIM: use true log-P extrapolation for near surface temp (= as in
604        F.Molteni paper) ; update aim.5l_cs output.
605    o New variable in PARM03 for more flexible pickups
606    o somewhat cleaned package initialisation sequence for
607      ctrl/ cost/ ecco/ in packages_... routines
608    
609    checkpoint50g_post
610    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
611      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
612      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
613        made the default because of faster convergence than ADI
614    
615    checkpoint50f_post
616    o exf totally restructured
617      - replaced all exf_set_ routines by one generic exf_set_gen.F
618        and made sure it's still differentiable
619      - split exf_getffields.F into new exf_bulkformulae.F
620      - exf_inscal_/exf_outscal_ suffixes consistent with field names
621      - updated adjoint/makefile and relevant verif. accordingly
622    
623    checkpoint50f_pre
624     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
625          + change Evap over land. (update aim.5l_cs output)
626     o added missing .cvsignores and made uniform across expts
627     o changed configuration of tidal_basin_2d expt
628     o added pkg/debug functions for tracing code in fatal crashes
629     o tidied pkg/monitor to use MONITOR_OPTIONS.h
630     o new fn in pkg/monitor to stop model if solution grows too big
631     o removed lots of single quotes from comments
632    
633    checkpoint50e_post
634    o make KPP work with PTRACERS
635     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
636       nearly a copy of kpp_transport_s
637     - there is no analogue to SurfaceTendencyS, so I have to use
638       gPtr(of the surface layer) instead
639    o add a new platform SunFire+mpi (SunFire 15000) to genmake
640    checkpoint50e_pre
641    
642    checkpoint50d_post
643    o change kpp output from multiple-record state files to single-record state
644      files analogous to write_state.F
645    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
646      analogous to the cg2d-related output.
647    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
648      so that writing to internal file fn (with length 512) fails.
649    checkpoint50d_pre
650    
651    checkpoint50c_post
652    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
653    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
654    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
655    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
656    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
657    
658    checkpoint50c_pre
659    Merging from release1_p13:
660    o bug fix for pkg/seaice dynamic solver
661    o Added SEAICE_initialHEFF to pkg/seaice
662    
663    checkpoint50b_post
664    o store u*,v* in gU,V instead of in guNm1,gvNm1
665    o in order to put the momForcing out of the Adams-Bashforth:
666      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
667      to timestep.F
668    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
669    o re-generate output for highly sensitive test-exp:
670       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
671    
672    checkpoint50b_pre
673    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
674    o corrected CPP option mismatch in exf_Bulk... functions for case
675      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
676    
677    checkpoint50a_post
678    o Bug fix for merging between c50 and KPP.
679      ikey was passed from thermodynamics to kpp_calc via
680      common block rather than being recomputed in kpp_calc,
681      in contradiction with new key itdkey.
682      New key ikppkey created, and tamc.h headers updated.
683    
684    checkpoint50
685    - 2nd step of merge with ecco-branch:
686      merge changes in ecco-branch back into main trunk
687    - bug fix in find_alpha
688    - more storing in gmredi_calc_tensor.F, kpp_routines.F
689    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
690    - merged some sliced AD support routines
691    
692    checkpoint49
693    merged from ecco-branch:
694    o exf:
695      - Enable initialisation of forcing fields to constant
696        (runtime) values.
697      - in exf_getffields.F
698        Reduce i-/j-loop to interior domain, discarding overlaps.
699        That also fixes wrong TAF-key computations for key_1, key_2
700        with bulf formulae.
701      - exf_init.F modify #ifdef for exf_init_evap
702      - exf_getffieldrec.F, ctrl_getrec.F
703        The following INT-usages are not safe:
704          fldsecs  = int(fldsecs/fldperiod)*fldperiod
705          fldcount = int(fldsecs/fldperiod) + 1
706        and were modified.
707    o autodiff: checkpoint_lev...
708      - updated storing for bulk formulae (some arrays were missing)
709      - added state for seaice package
710      - synchronized with main branch
711    o DIVA:
712      Modif.s in
713      - the_main_loop.F
714      - the_model_main.F
715      and added cost_final_restore.F cost_final_store.F
716      o With these changes, it is possible to fully separate
717        the first forward run to compute the cost function (mdthe_main_loop)
718        and adjoint runs over individual DIVA intervals (adthe_main_loop)
719        into separate model executions.
720        This enables better tuning of DIVA to given queue sizes.
721      o Loss of cost function value in consecutive DIVA runs is
722        fixed by storing to 'costfinal' file.
723      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
724        beginning/end of adjoint integration is accounted for.
725      The current changes apply to TAF-1.4.26.
726      TAF has one remaining bug, requiring one manual change
727      (see MITgcm manual).
728    o cal: synchronized between MAIN and ecco-branch
729    
730    checkpoint48i_post
731    o Changes to restore differentiability of code w.r.t. previous tag
732      (mostly adding new routines to make list and replacing
733      pressure by totPhiHyd).
734    o Updated and merged grdchk package
735      - has both ADM and TLM checks
736      - works for single- and multi-proc.
737      - output cleaned
738      - worked successfully for parallel DIVA
739    o genmake:
740      - Adding -platform=SP4
741      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
742    o Modif. for DIVA:
743      ctrl_unpack should not be called in intermediate DIVA interval.
744      (similar thing would apply for active files such as
745      tbar, sbar, psbar, which should not be reinitialised;
746      only relevant for ecco-branch)
747    
748    checkpoint48h_post
749    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
750    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
751    o Added SEAICE_initialHEFF to pkg/seaice
752    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
753    
754    checkpoint48g_post
755    --- EOS:
756    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
757      store total Potential in totPhyHyd for diagnostics & EOS.
758    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
759    --- Pressure/geopotential gradient:
760    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
761    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
762      ( changes results of global_ocean_pressure )
763    o NLFS + z-coord.: add eta*Rho' contribution.
764    o accurate phiHyd when using interface-W at the middle between 2 centers
765     ( changes results of ideal_2D_oce )
766    o includes r* 2nd term in potential gradient.
767    
768    checkpoint48f_post
769    Merging from release1_p12:
770    o Modifications for using pkg/exf with pkg/seaice
771      - improved description of the various forcing configurations
772      - added basic radiation bulk formulae to pkg/exf
773      - units/sign fix for evap computation in exf_getffields.F
774      - updated verification/global_with_exf/results/output.txt
775    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
776      (SBO) core products, including oceanic mass, center-of-mass,
777      angular, and bottom pressure (see pkg/sbo/README.sbo).
778    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
779      to avoid negative values in shallow regions.
780      - updated verification/natl_box/results/output.txt
781      - updated verification/lab_sea/results/output.txt
782    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
783    o Added useSingleCpuIO option (see PARAMS.h).
784    o Updated useSingleCpuIO option in mdsio_writefield.F to
785      work with multi-field files, e.g., for single-file pickup.
786    o pkg/seaice:
787      - bug fix in growth.F: QNET for no shortwave case
788      - added HeffFile for specifying initial sea-ice thickness
789      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
790    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
791      kpp_transport_t.F, forward_step.F, and the_main_loop.F
792    o pkg/seaice:
793      - adjoint-friendly modifications
794      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
795    
796    checkpoint48e_post
797    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
798    o dynamics: change definition of computational domain & adapt mom_fluxform
799      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
800    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
801        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
802        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
803        global_ocean.90x40x15 global_with_exf global_ocean_pressure
804        inverted_barometer solid-body.cs-32x32x1
805      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
806    
807    checkpoint48d_post
808    o in preparation for r*:
809     a) use pre-computed gradient of hydrostatic potential:
810        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
811     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
812        => affects results of glob_oce_pressure (different truncation error)  
813      update output.txt of ideal_2D_oce & global_ocean_pressure
814    
815    checkpoint48d_pre
816    o in preparation for r*:
817      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
818      pass the 2 comp. of the grad. as arguments to momentum S/R.
819      but for the moment, only used if it does not change the results.
820    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
821    
822    checkpoint48c_post
823    Modifications in treatment of initial flux forcing controls
824    to avoid extra storing of flux fields.
825    
826    checkpoint48c_pre
827    o Added tidal_basin_2d experiment (currently 1D!)
828    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
829    
830    checkpoint48b_post
831    o r* coordinate added in #ifdef NONLIN_FRSURF block.
832     (modification to pressure gradient not yet implemented)
833    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
834      (for U & V) that are used for vertical advection of momentum.
835    
836    checkpoint48a_post
837    o In preparation for r*, use temp. array to compute vertical transport
838       in flux-form momentum pkg. => change results of few test-exp.
839      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
840                        lab_sea, natl_box & plume_on_slope
841    
842    checkpoint48
843    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
844    
845    checkpoint47j_post
846    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
847    o moved adexch from forward_step to addummy_in_stepping
848    o added exch in ctrl_map_...
849    o aveFreq.=0. at end of cost_final to avoid overwrite in
850      reverse checkpointing loop
851    o Yet more changes in gmredi:
852      * adgmredi_calc_tensor
853        avoiding all recomputation of gmredi_slope_limit
854      * adgmredi_x/y/rtransport
855        added flag for excessive storing to avoid recomp. of
856        u/v/rtans, dTdx/y/z
857        -> this is not really necessary and very memory-consuming
858      * adgmredi_slope_psi:
859        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
860      * gmredi_slope_limit
861        re-activated full calculation of taperfct for case 'ac02'
862    o updating verification/ adjoints of carbon, global_ocean.90x40x15
863    
864    checkpoint47i_post
865    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
866    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
867      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
868    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
869    o gmredi: fix few bugs.
870    
871    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
872    This will be a good checkpoint to plug into the ecco-branch.
873    o few modif.'s to get latest version adjointed
874      (mainly kick out code in ini_linear_phisurf)
875    o modif's to run adjoint with exactConserv
876    o case GM_BOLUS_ADVEC should be cleaned
877      S/R gmredi_slope_psi should be cleaned
878    o verification/carbon now has exactConserv=.TRUE.
879    
880    checkpoint47g_post
881    o time-average AIM output: becomes independent from statvars time-average
882      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
883    o After TAF bug fix:
884      Tested adjoint of gmredi package.
885      Tests were done with checkpoint47 rather than with latest
886      checkpoint47f_post since the latter is broken for the adjoint
887      verification/carbon/ contains both ADM and TLM gradient checks.
888    Here they are, before they get changed/lost/stolen.
889    Mostly modif.'s to fix numerical sensitivities.
890    Gradient checks OK for
891    - GM_taper_scheme:
892      * clipping
893      * ac02
894      * linear
895      * glw91
896      * dm95
897      * ldd97
898    - GMREDI_OPTIONS:
899      * GM_VISBECK_VARIABLE_K
900      * GM_NON_UNITY_DIAGONAL
901      * GM_EXTRA_DIAGONAL
902      * GM_BOLUS_ADVEC
903    in conjunction with data.gmredi parameters to be checked in
904    in a few minutes under verification/carbon/code/
905    
906    checkpoint47f_post
907    Merging from release1_p10:
908    o modifications for using pkg/exf with pkg/seaice
909      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
910        and SEAICE_EXTERNAL_FLUXES
911      - pkg/exf CPP options EXF_READ_EVAP and
912        EXF_NO_BULK_COMPUTATIONS
913      - usage examples are Experiments 8 and 9 in
914        verification/lab_sea/README
915      - verification/lab_sea default experiment now uses
916        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
917    
918    checkpoint47e_post
919    o created a tag prior to creating a branch
920    
921    checkpoint47d_post
922    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
923      at the bottom boundary had an erroneous half slip boundary condition
924    o added bottom drag and no slip boundary condition capabilities to
925      oceanic pressure coordinates code
926    o added new verification experiment global_ocean_pressure, this experiment is
927      also described in the tutorial section of the manual
928    checkpoint47d_pre
929    
930    checkpoint47c_post
931    o Added a verification experiment for a global cubed-sphere ocean run
932      -  verification/global_ocean.cubed32x32x30
933      -  uses pkg/therm_seaice and pkg/bulk_forcing
934    
935    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
936    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
937      when using P-coordinate; only implemented for atmospheric config.
938    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
939      NOTES: requires option NONLIN_FRSURF to be "#define".
940    o update advect_xz/results/output.txt (left from checkpoint44g_post)
941    
942  checkpoint47b_post  checkpoint47b_post
943  Merging from release1_p9:  Merging from release1_p9:
944  o pkg/seaice  o pkg/seaice

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