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revision 1.50 by adcroft, Thu Sep 27 14:24:19 2001 UTC revision 1.302 by adcroft, Mon May 24 15:37:59 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 bug fix for mom_*_sidedrag: rA -> rAs,rAw
8    o regenerated output for global_ocean_ebm (using -ieee)
9    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
10      of mom_common/
11      - simple re-arrangement of instructions within computing loop
12    checkpoint53d_pre
13    
14    checkpoint53c_post
15    o new version of coupler for AIM+thSIce and Ocean models
16     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
17     - land: change Evaporation of snow
18     - aim with thSIce: fix bug in snow-precip.
19    o changes to calc_gw.F
20     - bug fix for w^2 term near the bottom boundary
21     - (hopefully) improve the lateral slip boundary condtions for use with
22        partial/looped cells
23      - because the bug fix changes two verification experiments anyway (exp5
24        and plume on slope), change the lateral boundary condition from half slip
25        to the value of no_slip_sides
26    o ebm package wasnt quite up to the parallel task. Fixed that.
27    o Adjoint of EBM package + verification
28      * TLM OK
29      * ADM not sufficient accuracy yet (needs further testing)
30    
31    checkpoint53b_post
32    o Commiting new energy balance model to repository
33      * package is pkg/ebm
34      * verif. is verification/global_ocean_ebm
35      * references are in ebm_driver.F
36    C      * X. Wang, P. Stone and J. Marotzke, 1999:
37    C        Global thermohaline circulation. Part I:
38    C        Sensitivity to atmospheric moisture transport.
39    C        J. Climate 12(1), 71-82
40    C      * X. Wang, P. Stone and J. Marotzke, 1999:
41    C        Global thermohaline circulation. Part II:
42    C        Sensitivity with interactive transport.
43    C        J. Climate 12(1), 83-91
44    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
45    C        Destabilization of the thermohaline circulation
46    C        by atmospheric eddy transports.
47    C        J. Climate 7(12), 1870-1882
48    o Will need long integration testing.
49    checkpoint53b_pre
50    
51    o created pkg/mom_common in preparation for variable viscosity code
52    o renamed and split ini_mnc_io
53    o pkg/land: only liquid water can diffuse or run-off
54    o AIM using land: soil wetness availability account for snow
55    o added printMapIncludesZeros to EEPARMS namelist
56    
57    checkpoint53a_post
58    o restore TAMC compatiility for exf_constants.h
59      (no usage of _d in .h)
60    o Additional storing in KPP in an attempt to fix
61      TAMC problem with adjoint of KPP code.
62      (no success...)
63      Identical code works fine with TAF.
64    o Fixed verification/natl_box_adjoint experiments.
65      Initial conditions for Experiments 4 and 5 are now
66      set to "SEAICE_initialHEFF=0", which is more reasonable,
67      and hence gives results closer to that of Experiment 2.
68      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
69    
70    checkpoint53
71    o stable checkpoint with up to date adjoint
72      TLM tests only run for 1st grdchk at the moment. Its unclear if
73      this is a code problem or a problem with resetting code for g_
74      variables that is being autogenerated wrong.
75      Otherwise:
76       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
77       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
78         are both still in chaos following their security messes.
79    
80    checkpoint52n_post
81    o various build (mostly genmake2) changes including:
82      - ability to build/run more easily within Cygwin and MacOS X
83      - more complicated Makefiles with a stronger dependence on Gnu Make
84    o pkg/seaice modifications
85      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
86        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
87        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
88      - changed proxy for geostrophic velocity and updated
89        verification/lab_sea/results/* accordingly
90      - removed ADI dynamic solver from pkg/seaice
91      - replaced all occurrences of 1/CSTICE or 1/CSUICE
92        they caused a segmentation fault under certain circumstances
93      - removed unused field WATR
94    o bug fix in exf-package:
95      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
96         now reflect that.
97    o small fixes in the cal-package:
98      - set reference date to first of January for the 'model'-calendar
99      - failing of cal_CheckDate in cal_FullDate now actually results in a
100        warning
101    o small modifications in exf-package to increase flexibility:
102      - change climtempfreeze from a constant to a runtime parameter that
103        is specified in data.exf_clim (default = -1.9)
104      - introduce runtime parameter windstressmax (default = 2.0) that is
105        specified in data.exf
106    o fix in pkg/thsice:
107      - update Evap (Tsf changes) to be consistent with Latent heat flux
108      - maintain snow precipitation unchanged (even if Tsf >=0).
109     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
110    
111    checkpoint52m_post
112    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
113      this does not change any of the results, because myIter=0 in swfrac always
114      lead to jwtype=2 (the default anyway), but the call makes little sense
115      as a default
116    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
117    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
118      atmospheric model (AIM) to use it ; add a "slab ocean" component.
119    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
120    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
121    o extending useSingleCpuIO option to work with new exch2 I/O format
122      - old-style, missing-tile I/O is still accessible by defining CPP
123        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
124    o monitor package can write to NetCDF files and/or STDOUT
125    o fix re-definition bug in MNC_GRID_INIT_ALL()
126    o doc/api_reference added
127      - a framework for building an API Reference Manual using all
128        the "protex" comments embedded in the code
129      - see pkg/generic_advdiff, pkg/mnc for examples
130    o MNC:
131      - make myThid the last argument for all subroutines
132      - new default for the grid files: NO halos
133      - add useMNC and other run-time flags
134      - separate per-file-group handling of the unlimited dimension
135      - early initialization of MNC w/ flags read at the eeboot stage
136        and lookup tables set in initialize_fixed
137      - write all MNC output to a freshly-created directory
138    o thermodynamics sea-ice (thsice) is now tested with testreport.
139    o test exp. advect_cs: use the standard cs32 grid ; update output.
140    o Added functionality to grdchk:
141      pick global i,j,k position (or nearest wet) where to perform check.
142    
143    checkpoint52l_post
144    o new land formulation:
145      a) use ground enthalpy as prognostic variable to ensure exact
146         energy conservation.
147      b) account for water temperature and for latent heat of freezing
148         in all processes (rain, run-off, ground storage)
149      c) compute surface and ground temperature implicitly.
150    o aim_v23 modification for new land model:
151      a) Treat separately land / ocean / sea-ice surface fluxes
152         to allow implicit computation of land & sea-ice surface temp.
153      b) add snow precipitation.
154    checkpoint52l_pre
155    
156    o fix problem (when 1 tile is empty) in min/max monitor.
157    o fix bug in timeAve (u,vZetatave in common block)
158    o no restoring terms under ice for pkg/seaice
159    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
160    o bug fix for pkg/seaice pickups
161    o change MNC call locations and add coordinate attributes
162    o mask vorticity at the corner ; affects global_ocean.cs output
163    o fix ini_curvilinear_grid ; test CS experiments with mpi
164    o aim.5l_cs: modify sea-ice fraction input file ; update output
165    o exf: Adding simple range check routine for exf fields after read
166    
167    checkpoint52k_post
168    o removed top-level directory "diags"
169      - we migrated these functions to pkg/timeave a long time ago
170    o fixed bug introduced in pkg/monitor
171    o accuracy ctrlprec = 32 insuffient for gradient checks using
172      averaged fields (I/O via cost_averages)
173      -> use ctrl.h in active_file*.F to control I/O precision.
174    o paramter list of CALL ADTHE_MAIN_LOOP
175    o added initial do_the_model_io to ecco
176    o set all ...Freq to zero after cost_final
177      taveFreq, dumpFreq, pChkptFreq
178    o MAIN and ECCO differentiability restored
179    
180    checkpoint52j_post
181    o fix nchklev in tamc.h for global_ocean...
182    o Bringing flow and store directives up-to-date
183    o Really weird thing!
184      call do_the_model_io from the_main_loop with parameters
185      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
186      TAF places a faulty re-call of initialise_varia
187      after cost_final call which should not be there!
188    checkpoint52j_pre
189    
190    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
191      error messages
192    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
193    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
194      debug output
195    o modfied mdsio_writefield.F to handle non-global files under exch2
196    o update AIM Cubed-Sphere exp (aim.5l_cs):
197      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
198    o update AIM Equatorial Channel exp:
199      use standard aim_v23 pkg and change the SST fields to be more realistic.
200    o globalFile now works with exch2
201    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
202      mon_vort3.F to make exch2 friendly with >1 tile per cube face
203    o limit timeave output for hi-res integrations
204    
205    checkpoint52i_post
206    o removed CPP_EEOPTIONS.h from verification/*/code
207    o updated the tiling for global_ocean_pressure
208    checkpoint52i_pre
209    
210    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
211      the old pkg/aim).
212    
213    checkpoint52h_pre
214    o shortened offending lines in exch2_send_rx?.template
215    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
216    o genmake2: add build & execute test for NetCDF code
217    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
218      old grid files, moved CPP_EEMACROS.h to pkg/exch2
219    o added useSingleCPUIO flag to monitor.F and mon_out.F
220    o added temporary hack for sea-ice dynamics on the cube:
221      metric terms are ignored and it is assumed that
222      there is no sea-ice on cube faces 1, 2, 4, and 5.
223    
224    checkpoint52f_post
225    o added exch2 cube routines to pkg/exch2
226    o modified hs94.cs-32x32x5 to use it
227    o added new grid files to hs94.cs-32x32x5
228    checkpoint52f_pre
229    
230    checkpoint52e_post
231    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
232      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
233    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
234      to work with implicit vertical advection and AB ;
235    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
236    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
237     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
238    checkpoint52e_pre
239    
240    o fix bug in impldiff when Nr=1 or Nr=2.
241    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
242    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
243    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
244      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
245    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
246    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
247    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
248    
249    checkpoint52d_post
250    o re-tiled many expts to allow comparison in multi-processor mode
251      - updated output accordingly
252      - changed hs94.128x64x5 to use intial T from file rather than use the
253        random number generator
254    o add infrastructure in model routines for fizhi and gridalt packages
255    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
256    o changes to permit hi-res, cubed-sphere, configuration
257      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
258      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
259      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
260        of surface winds for the cube
261      (A verification experiment, based on global_ocean.cs32x15, but with
262       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
263       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
264       complete with example surface forcing files and matlab scripts to look
265       at the output and compare it with that of global_ocean.cs32x15.)
266    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
267       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
268       to conform to the common rule.
269    o check-in the first version of the coupler + interfaces for multi-components
270       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
271       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
272       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
273       - ocean and atmos. share the same horizontal grid (no interpolation).
274       - exchanges between component and coupler is done in forward_step
275    o new verification experiment, cpl_aim+ocn:
276       coupled ocean - AIM atmosphere on cs32 grid.
277    
278    checkpoint52d_pre
279    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
280    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
281    
282    checkpoint52c_post
283    o Fixing OPTIONS files for use of exf:
284      - ALLOW_ECCO not needed
285      - ECCO_CPPOPTIONS.h should not be included from
286        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
287        as has been the case in the past
288      - All cal/exf related options are currently set in
289        single header file. Should remain so until we
290        agree on a consistent new policy.
291    o Removed all CPP options for cal package.
292      cal has no more CPP options.
293    o modified STOREs in GAD_ADVECTION
294    o corrected key comp. for passkey
295    
296    checkpoint52b_post
297    o new version: "thsice" of thermodynamic sea-ice pkg:
298     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
299     - modify fluxes but do not change theta directly;
300     - light cleaning of bulk_force pkg (still needed with thsice).
301     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
302       + output_thsice.txt to test thsice & bulk_force pkgs.
303    o put back grid & coriolis monitor output.
304    checkpoint52b_pre
305    
306    o call "do_the_model_io" at the beginning (=> dump initial state)
307    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
308    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
309      (need info on NUMBER_OF_PTRACERS)
310    o missing PTRACERS headers in some routines
311    o default tamc.h in pkg/autodiff supposed to crash
312      to ensure proper customization
313    
314    checkpoint52a_post
315    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
316      - moved surfaceTendencyTice from pkg/seaice to main code
317      - subroutine FREEZE_SURFACE now limits only surface temperature
318        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
319        => new output.txt for global_ocean.cs32x15 & global_with_exf
320      - keep the old version of FREEZE for backward compatibility;
321        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
322      - corresponding modifs for TAF directives
323    o added surface flux output variables to TIMEAVE_STATVARS
324    o time-averaged output for pkg/ptracers
325    o fix problem with ECCO-related divided adjoint
326      snapshot file was missing some ad-variables,
327      but no warning issued by TAF
328    
329    checkpoint52a_pre
330    o some bug fixes for #undef REAL4_IS_SLOW
331    
332    checkpoint52 = ecco_c52_e35
333    o after testing adjoints of checkpoint51u_post
334    
335    checkpoint51u_post
336    o this is the post-merge tag of the ecco-branch
337      (needs another clean checkout and re-testing)
338    o various natl_box_adjoint configs and results
339      but no input fields
340    o obcs adjoint not yet merged!
341    o adding ECCO global 1x1 and 2x2 degree configs
342    o updated/extended some store directives for seaice
343    o pkg/ecco now containes ecco-specific part of cost function
344    o top level routines the_main_loop, forward_step
345      supersede those in model/src/
346      previous input data.cost now in data.ecco
347      (new namelist ecco_cost_nml)
348    o in ctrl/ cleaned some cross-dependencies and updated CPP options
349    
350    checkpoint51t_post
351    o this is the pre-merge tag of the ecco-branch
352    
353    checkpoint51s_post
354    o cleanup: removed various obsolete #define-s
355    o pkg/grdchk
356      - renamed 'ph-grd 3' to 'grad-res'
357      - merged from ecco-branch
358        (remaining bug fixes for obcs gradient checks)
359      - additional high-precision output for testreport
360        (grep for 'precision_grdchk_result')
361    
362    checkpoint51r_post
363    o cleaned up or removed CPP_OPTIONS.h files
364    o updated results for some of the tests to reflect the new
365      optfiles (-ieee: -O0 instead of -O3)
366    
367    checkpoint51q_post
368    o cd_code:
369      - moved cd_scheme.F -> cd_code_scheme.F
370      - separate read_checkpoint from cd_code_ini_vars.F
371      - separated cd_code part from write_checkpoint
372      - updated AD_SOURCE, generated .flow
373      - added CD_CODE_VARS.h to the_main_loop
374      - Moving cd_code specific store dir.s to pkg/cd_code
375    o ctrl package totally restructured
376      - pack/unpack now optional and decoupled from
377        xx_/adxx_ I/O
378      - ctrl_pack/unpack cleaned
379        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
380      - confined inclusion of AD_CONFIG.h to where necessary.
381    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
382    
383    checkpoint51p_post
384    o create initial cd_code package
385      - WARNING: the initialization of fields within packages
386        is broken because INI_FIELDS (where READ_CHECKPOINT is
387        called) is called *before* PACKAGES_INIT_VARIABLES.
388        This seems to be backwards since
389        1) its important to initially zero the entire field including
390           the "halo" region
391        2) zeroing needs to be done *before* reading pickup info
392           and the pickup call might or might not happen in any
393           particular run
394      - this needs an overhaul for R2
395    o cleanup verification/*/code/GMREDI_OPTIONS.h
396    o cleanup testreport
397    
398    checkpoint51o_post
399    o bringing AD-related verif's up to date with genmake2
400      - carbon/
401      - global_ocean.90x40x15/
402      - hs.94.1x64x5/
403      - (front_relax/ )
404    o (more) consistent directory structure for AD-related verif.'s
405    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
406    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
407    o bug fix in find_alpha.F for MDJWF:
408      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
409        change rho -> rho-rhoConst
410      - replace call find_rho to find_rhonum
411    o initialisation of rFlx extended to full array (required by TAF)
412      and shifted to thermodynamics
413    o removed PTRACERS.h in ptracers routine
414    o added surfacetendencyPtr to S/R parameter list pracers_forcing
415    o Correcting initialisations for fVerU, fVerV.
416    o helping TAF to recognize dependency on kUp for
417      fVerU, fVerV
418    o Replacing delZ by delR in pkg/ctrl/
419    checkpoint51o_pre
420    
421    o undid all of cp51 pending some cleanups and discussion
422    o added the [#include "AD_CONFIG.h"] statement to all files that need
423       it for adjoint/tl #defines
424     o re-worked the build logic in genmake2 to support AD_CONFIG.h
425     o removed tools/genmake since it no longer works
426    
427    checkpoint51n_post
428    o modifications to make FREEZE flux visible to pkg/kpp
429      - moved surfaceTendencyTice from pkg/seaice to main code
430      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
431      - subroutine FREEZE now limits only surface temperature
432        (this means new output.txt for global_ocean.90x40x15,
433         global_ocean.cs32x15, and global_with_exf)
434    o added surface flux output variables to TIMEAVE_STATVARS
435    
436    checkpoint51n_pre
437    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
438    o added [#include "AD_CONFIG.h"] to all files that use the following
439      defines:
440      - ALLOW_ADJOINT_RUN
441      - ALLOW_TANGENTLINEAR_RUN
442      - ALLOW_ECCO_OPTIMIZATION
443    
444    checkpoint51m_post
445    o incorporating changes to get TAMC/TAF working in genmake2
446      - added new TAMC/TAF targets to the Makefile
447      - various cleanups related to package handling
448      - these changes should have no impact on the forward model
449    
450    checkpoint51l_post
451    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
452     - faster algorithm for cal_addtime.F
453     - higher precision arithmetic, where needed
454     - pkg/exf *startdate variables changed from calendar date to
455       model integration time
456    
457    checkpoint51l_pre
458    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
459    o enable to apply restoring on S & T only in a latitude band.
460    o update output (external_forcing_surf modif. change truncation errors)
461       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
462    
463    checkpoint51k_post
464    o change default to: useNHMTerms=.FALSE.
465     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
466       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
467     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
468        exp1, ideal_2D_oce
469     - change data file of oceanic exp (leave the results unchanged for now)
470       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
471    o set gravitySign automatically according to the vertical coordinate used
472      (and change sign: back to "logical" value: +1 when R increases downward)
473    o added an include barrier to the default CPP_OPTIONS.h and
474      removed the #include "PACKAGES_CONFIG.h" from it
475    o fix a bug in mom_fluxform (from chk51j_post)
476    
477    checkpoint51j_post
478    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
479    o adjusted some flow directives (dynamics, thermodynamics)
480    o added cubed-sphere case to test cost function
481    o heckpoint_lev?_directives.h now include
482      pkg-specific directives, whenever those are enabled.
483    o Moving pkg-specific flow directives to corresponding pkg
484      Moving pkg-specific differentiation list to corresponding pkg
485      Moving pkg-specific checkpoint-lev storing to corresponding pkg
486      ---> conventions are
487           - pkg_ad.flow
488           - pkg_ad_diff.list
489           - pkg_ad_check_lev?_dir.h
490    
491    checkpoint51i_post
492    o merge of the branch-genmake2
493      - knowingly breaks the older genmake
494      - automatic generation of all ALLOW_${PKG_NAME} defines
495      - new testreport supersedes older testscript
496    o large number of package inclusion and header cleanups
497    checkpoint51i_pre
498    
499    o new output for adjoin of global ocean vector invariant
500    o fix for checkpoint of thermodynamic seaice and bulk_force
501    o Steph gchem various cleanups
502    
503    checkpoint 51h_pre
504    o fixed some single quotes
505    o modify gchem pkg to be more versatile
506    o modifications to clean up dic pkg
507    o add pkg/cfc
508    
509    checkpoint51g_post
510    o provide links for ARPACK and ADM*TLM
511    o start removing verification/vero/
512    o update AD-related stuff
513      (in particular some IF-statements in model/src/ routines)
514    o adding to verification/global_ocean.90x40x15/ adjoint of
515      vector invariant setup
516    
517    checkpoint51f_post
518    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
519    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
520      of tracer Green's fucntions for ocean inversion project.
521    
522    checkpoint51f_pre
523    o Added on-the-fly spatial interpolation capability
524        "USE_EXF_INTERPOLATION" to pkg/exf.
525      - This is a temporary Cartesian-grid hack until
526        the super-duper ESMF coupler becomes available.
527      - See verification/global_with_exf/README for usage example.
528      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
529        flags and modified pkg/seaice accordingly.
530    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
531        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
532        non-local transport term.
533    
534    checkpoint51e_post
535    o pkg/mom_vecinv:
536      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
537      - add time-ave diagnostic of vorticity advection.
538    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
539    o atmospheric geopotential: - include water vapor effect;
540                                - use p^kappa in p* scaling.
541    o land pkg: read initial state from files.
542    o AIM : add stratospheric drag in the upper level
543    
544    checkpoint51d_post
545    o change function ILNBLNK (=> last non-blank char.) to return zero
546      (instead of the string length) when the string. char is empty
547    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
548    o modif's to restore TAMC compatibility
549      - avoid "_d" constructs in PARAMETER declarations
550      - avoid interrupting lines by comment lines
551    o Use cluster local disks for purely local I/O
552      vs. globally visible disks needed for ctrl stuff
553      (merged from ecco-branch)
554      - new active_file_loc... and mdsio_..._loc routines
555      - affected packages: autodiff, ctrl, grdchk, mdsio
556    
557    checkpoint51c_post
558    o introducing integer flag debugLevel
559      - debLevZero: suppress all output
560      - debLevA: standard
561      - debLevB: equivalent to current debugMode=.TRUE.
562    o introducing pathname variable mdsioLocalDir for mdsio
563      that can be specified at runtime
564      (relevant for cluster I/O to local disk)
565    `
566    >>>checkpoint51b_post
567    adjoint of ptracers
568    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
569    o extended state in checkpoint_lev?, etc.
570    o alternative ctrl/cost with tr1 or ptracer
571    o new comlev1_bibj_ptracers
572    o new ptracers.flow
573    o made ptracers_forcing same as external_forcing_s
574    o added verification for adjoint with ptracers
575      - adm. grdchk fail so far
576      - tlm. grdchk OK
577      - checked tapelev/comlev recomputations: OK
578    <<<checkpoint51b_pre
579    
580    checkpoint51a_post
581    o added code for biogeochemistry package
582      - new pkgs: dic, gchem
583      - new subroutine in ptracers
584    o modify code for biogeo packages
585      - in model/src and pkg/ptracers
586    
587    checkpoint51
588    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
589      - autodiff, ctrl, exf, grdchk, seaice
590      kept separate packages
591      - cost, ecco, obcs
592    o updating verification/internal_wave, verification/lab_sea
593      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
594    
595    checkpoint50i_post
596    o Preparing next differentiable checkpoint and sync
597      of MAIN vs. ecco-branch
598      - 1st step: this one is differentiable
599      - 2nd step: next(! not this) checkpoint will have updated packages
600                  from ecco-branch)
601    
602    checkpoint50h_post
603    o new package "land": provide surface BC for AIM.
604    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
605    o AIM: use true log-P extrapolation for near surface temp (= as in
606        F.Molteni paper) ; update aim.5l_cs output.
607    o New variable in PARM03 for more flexible pickups
608    o somewhat cleaned package initialisation sequence for
609      ctrl/ cost/ ecco/ in packages_... routines
610    
611    checkpoint50g_post
612    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
613      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
614      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
615        made the default because of faster convergence than ADI
616    
617    checkpoint50f_post
618    o exf totally restructured
619      - replaced all exf_set_ routines by one generic exf_set_gen.F
620        and made sure it's still differentiable
621      - split exf_getffields.F into new exf_bulkformulae.F
622      - exf_inscal_/exf_outscal_ suffixes consistent with field names
623      - updated adjoint/makefile and relevant verif. accordingly
624    
625    checkpoint50f_pre
626     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
627          + change Evap over land. (update aim.5l_cs output)
628     o added missing .cvsignores and made uniform across expts
629     o changed configuration of tidal_basin_2d expt
630     o added pkg/debug functions for tracing code in fatal crashes
631     o tidied pkg/monitor to use MONITOR_OPTIONS.h
632     o new fn in pkg/monitor to stop model if solution grows too big
633     o removed lots of single quotes from comments
634    
635    checkpoint50e_post
636    o make KPP work with PTRACERS
637     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
638       nearly a copy of kpp_transport_s
639     - there is no analogue to SurfaceTendencyS, so I have to use
640       gPtr(of the surface layer) instead
641    o add a new platform SunFire+mpi (SunFire 15000) to genmake
642    checkpoint50e_pre
643    
644    checkpoint50d_post
645    o change kpp output from multiple-record state files to single-record state
646      files analogous to write_state.F
647    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
648      analogous to the cg2d-related output.
649    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
650      so that writing to internal file fn (with length 512) fails.
651    checkpoint50d_pre
652    
653    checkpoint50c_post
654    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
655    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
656    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
657    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
658    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
659    
660    checkpoint50c_pre
661    Merging from release1_p13:
662    o bug fix for pkg/seaice dynamic solver
663    o Added SEAICE_initialHEFF to pkg/seaice
664    
665    checkpoint50b_post
666    o store u*,v* in gU,V instead of in guNm1,gvNm1
667    o in order to put the momForcing out of the Adams-Bashforth:
668      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
669      to timestep.F
670    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
671    o re-generate output for highly sensitive test-exp:
672       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
673    
674    checkpoint50b_pre
675    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
676    o corrected CPP option mismatch in exf_Bulk... functions for case
677      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
678    
679    checkpoint50a_post
680    o Bug fix for merging between c50 and KPP.
681      ikey was passed from thermodynamics to kpp_calc via
682      common block rather than being recomputed in kpp_calc,
683      in contradiction with new key itdkey.
684      New key ikppkey created, and tamc.h headers updated.
685    
686    checkpoint50
687    - 2nd step of merge with ecco-branch:
688      merge changes in ecco-branch back into main trunk
689    - bug fix in find_alpha
690    - more storing in gmredi_calc_tensor.F, kpp_routines.F
691    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
692    - merged some sliced AD support routines
693    
694    checkpoint49
695    merged from ecco-branch:
696    o exf:
697      - Enable initialisation of forcing fields to constant
698        (runtime) values.
699      - in exf_getffields.F
700        Reduce i-/j-loop to interior domain, discarding overlaps.
701        That also fixes wrong TAF-key computations for key_1, key_2
702        with bulf formulae.
703      - exf_init.F modify #ifdef for exf_init_evap
704      - exf_getffieldrec.F, ctrl_getrec.F
705        The following INT-usages are not safe:
706          fldsecs  = int(fldsecs/fldperiod)*fldperiod
707          fldcount = int(fldsecs/fldperiod) + 1
708        and were modified.
709    o autodiff: checkpoint_lev...
710      - updated storing for bulk formulae (some arrays were missing)
711      - added state for seaice package
712      - synchronized with main branch
713    o DIVA:
714      Modif.s in
715      - the_main_loop.F
716      - the_model_main.F
717      and added cost_final_restore.F cost_final_store.F
718      o With these changes, it is possible to fully separate
719        the first forward run to compute the cost function (mdthe_main_loop)
720        and adjoint runs over individual DIVA intervals (adthe_main_loop)
721        into separate model executions.
722        This enables better tuning of DIVA to given queue sizes.
723      o Loss of cost function value in consecutive DIVA runs is
724        fixed by storing to 'costfinal' file.
725      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
726        beginning/end of adjoint integration is accounted for.
727      The current changes apply to TAF-1.4.26.
728      TAF has one remaining bug, requiring one manual change
729      (see MITgcm manual).
730    o cal: synchronized between MAIN and ecco-branch
731    
732    checkpoint48i_post
733    o Changes to restore differentiability of code w.r.t. previous tag
734      (mostly adding new routines to make list and replacing
735      pressure by totPhiHyd).
736    o Updated and merged grdchk package
737      - has both ADM and TLM checks
738      - works for single- and multi-proc.
739      - output cleaned
740      - worked successfully for parallel DIVA
741    o genmake:
742      - Adding -platform=SP4
743      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
744    o Modif. for DIVA:
745      ctrl_unpack should not be called in intermediate DIVA interval.
746      (similar thing would apply for active files such as
747      tbar, sbar, psbar, which should not be reinitialised;
748      only relevant for ecco-branch)
749    
750    checkpoint48h_post
751    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
752    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
753    o Added SEAICE_initialHEFF to pkg/seaice
754    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
755    
756    checkpoint48g_post
757    --- EOS:
758    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
759      store total Potential in totPhyHyd for diagnostics & EOS.
760    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
761    --- Pressure/geopotential gradient:
762    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
763    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
764      ( changes results of global_ocean_pressure )
765    o NLFS + z-coord.: add eta*Rho' contribution.
766    o accurate phiHyd when using interface-W at the middle between 2 centers
767     ( changes results of ideal_2D_oce )
768    o includes r* 2nd term in potential gradient.
769    
770    checkpoint48f_post
771    Merging from release1_p12:
772    o Modifications for using pkg/exf with pkg/seaice
773      - improved description of the various forcing configurations
774      - added basic radiation bulk formulae to pkg/exf
775      - units/sign fix for evap computation in exf_getffields.F
776      - updated verification/global_with_exf/results/output.txt
777    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
778      (SBO) core products, including oceanic mass, center-of-mass,
779      angular, and bottom pressure (see pkg/sbo/README.sbo).
780    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
781      to avoid negative values in shallow regions.
782      - updated verification/natl_box/results/output.txt
783      - updated verification/lab_sea/results/output.txt
784    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
785    o Added useSingleCpuIO option (see PARAMS.h).
786    o Updated useSingleCpuIO option in mdsio_writefield.F to
787      work with multi-field files, e.g., for single-file pickup.
788    o pkg/seaice:
789      - bug fix in growth.F: QNET for no shortwave case
790      - added HeffFile for specifying initial sea-ice thickness
791      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
792    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
793      kpp_transport_t.F, forward_step.F, and the_main_loop.F
794    o pkg/seaice:
795      - adjoint-friendly modifications
796      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
797    
798    checkpoint48e_post
799    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
800    o dynamics: change definition of computational domain & adapt mom_fluxform
801      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
802    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
803        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
804        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
805        global_ocean.90x40x15 global_with_exf global_ocean_pressure
806        inverted_barometer solid-body.cs-32x32x1
807      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
808    
809    checkpoint48d_post
810    o in preparation for r*:
811     a) use pre-computed gradient of hydrostatic potential:
812        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
813     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
814        => affects results of glob_oce_pressure (different truncation error)  
815      update output.txt of ideal_2D_oce & global_ocean_pressure
816    
817    checkpoint48d_pre
818    o in preparation for r*:
819      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
820      pass the 2 comp. of the grad. as arguments to momentum S/R.
821      but for the moment, only used if it does not change the results.
822    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
823    
824    checkpoint48c_post
825    Modifications in treatment of initial flux forcing controls
826    to avoid extra storing of flux fields.
827    
828    checkpoint48c_pre
829    o Added tidal_basin_2d experiment (currently 1D!)
830    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
831    
832    checkpoint48b_post
833    o r* coordinate added in #ifdef NONLIN_FRSURF block.
834     (modification to pressure gradient not yet implemented)
835    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
836      (for U & V) that are used for vertical advection of momentum.
837    
838    checkpoint48a_post
839    o In preparation for r*, use temp. array to compute vertical transport
840       in flux-form momentum pkg. => change results of few test-exp.
841      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
842                        lab_sea, natl_box & plume_on_slope
843    
844    checkpoint48
845    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
846    
847    checkpoint47j_post
848    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
849    o moved adexch from forward_step to addummy_in_stepping
850    o added exch in ctrl_map_...
851    o aveFreq.=0. at end of cost_final to avoid overwrite in
852      reverse checkpointing loop
853    o Yet more changes in gmredi:
854      * adgmredi_calc_tensor
855        avoiding all recomputation of gmredi_slope_limit
856      * adgmredi_x/y/rtransport
857        added flag for excessive storing to avoid recomp. of
858        u/v/rtans, dTdx/y/z
859        -> this is not really necessary and very memory-consuming
860      * adgmredi_slope_psi:
861        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
862      * gmredi_slope_limit
863        re-activated full calculation of taperfct for case 'ac02'
864    o updating verification/ adjoints of carbon, global_ocean.90x40x15
865    
866    checkpoint47i_post
867    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
868    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
869      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
870    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
871    o gmredi: fix few bugs.
872    
873    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
874    This will be a good checkpoint to plug into the ecco-branch.
875    o few modif.'s to get latest version adjointed
876      (mainly kick out code in ini_linear_phisurf)
877    o modif's to run adjoint with exactConserv
878    o case GM_BOLUS_ADVEC should be cleaned
879      S/R gmredi_slope_psi should be cleaned
880    o verification/carbon now has exactConserv=.TRUE.
881    
882    checkpoint47g_post
883    o time-average AIM output: becomes independent from statvars time-average
884      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
885    o After TAF bug fix:
886      Tested adjoint of gmredi package.
887      Tests were done with checkpoint47 rather than with latest
888      checkpoint47f_post since the latter is broken for the adjoint
889      verification/carbon/ contains both ADM and TLM gradient checks.
890    Here they are, before they get changed/lost/stolen.
891    Mostly modif.'s to fix numerical sensitivities.
892    Gradient checks OK for
893    - GM_taper_scheme:
894      * clipping
895      * ac02
896      * linear
897      * glw91
898      * dm95
899      * ldd97
900    - GMREDI_OPTIONS:
901      * GM_VISBECK_VARIABLE_K
902      * GM_NON_UNITY_DIAGONAL
903      * GM_EXTRA_DIAGONAL
904      * GM_BOLUS_ADVEC
905    in conjunction with data.gmredi parameters to be checked in
906    in a few minutes under verification/carbon/code/
907    
908    checkpoint47f_post
909    Merging from release1_p10:
910    o modifications for using pkg/exf with pkg/seaice
911      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
912        and SEAICE_EXTERNAL_FLUXES
913      - pkg/exf CPP options EXF_READ_EVAP and
914        EXF_NO_BULK_COMPUTATIONS
915      - usage examples are Experiments 8 and 9 in
916        verification/lab_sea/README
917      - verification/lab_sea default experiment now uses
918        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
919    
920    checkpoint47e_post
921    o created a tag prior to creating a branch
922    
923    checkpoint47d_post
924    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
925      at the bottom boundary had an erroneous half slip boundary condition
926    o added bottom drag and no slip boundary condition capabilities to
927      oceanic pressure coordinates code
928    o added new verification experiment global_ocean_pressure, this experiment is
929      also described in the tutorial section of the manual
930    checkpoint47d_pre
931    
932    checkpoint47c_post
933    o Added a verification experiment for a global cubed-sphere ocean run
934      -  verification/global_ocean.cubed32x32x30
935      -  uses pkg/therm_seaice and pkg/bulk_forcing
936    
937    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
938    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
939      when using P-coordinate; only implemented for atmospheric config.
940    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
941      NOTES: requires option NONLIN_FRSURF to be "#define".
942    o update advect_xz/results/output.txt (left from checkpoint44g_post)
943    
944    checkpoint47b_post
945    Merging from release1_p9:
946    o pkg/seaice
947      - removed GOTO's and added taf directives
948      - double precision constants to reduce the g77 (Linux)
949        to F77 (SGI) differences reported in release1_p8
950    o tools/genmake
951      - added SGI options
952    o verification/testscript
953      - updated to that of checkpoint47a_post
954    o verification/global_ocean.90x40x15/input/eedata
955      - modified for SGI f77 compatibility
956    o verification/lab_sea
957      - added description of sea-ice model
958      - added missing matlab routines
959      - added test of thermodynamics parallelization
960    
961    checkpoint47a_post
962    o new pkg: aim_v23
963     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
964       for now, keep the same surface forcing as before.
965     - Part-Cell implemented into AIM; check that Heat & Water are conserved
966     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
967     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
968    o add diagnostic of surface correction term in monitor output
969    
970    o bulk_force and therm_seaice
971    - Two packages:  bulk_force (Bulk forcing)
972      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
973    - Earlier integration from Stephaine Dutkiewicz
974      and Patrick Heimbach.
975    - Two ifdef statements for compile time,
976       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
977    
978    checkpoint47
979    differentiable version of checkpoint46n_post
980    o bug fix in quasihydrostaticterms
981    o * "clean" adjoint code (in terms of extensive recomputations)
982        can now be obtained for all GMREDI options (i.e. for
983        - GM_VISBECK_VARIABLE_K
984        - GM_NON_UNITY_DIAGONAL
985        - GM_EXTRA_DIAGONAL
986        - GM_BOLUS_ADVEC )
987      * However, wrong gradient check problem remains unsolved.
988      * New CPP options have been introduced for different
989        tapering schemes
990    o external_fields_load now part of differentiation list
991    o pressure needs multiple storing;
992      would be nice to have store_pressure at beginning or
993      end of forward_step, e.g. by having phiHyd global (5-dim.)
994      (NB: pressure is needed for certain cases in find_rho,
995      which is also invoked through convective_adjustment).
996    o recomputations in find_rho for cases
997     'JMD95'/'UNESCO' or 'MDJWF' are OK.
998    o #define ATMOSPHERIC_LOADING should be differentiable
999    o ini_forcing shifted to begining of initialise_varia
1000    o Incorporating QNVS line search routines into MITgcm
1001      (this is separate code, and therefore not under pkg)
1002      lsopt/, optim/
1003    o Updated verification/carbon/
1004      - #define GM_VISBECK_VARIABLE_K
1005      - GM_taper_scheme    = 'ldd97'    
1006    
1007    checkpoint46n_post
1008    Merging from release1_p8:
1009    o verification/natl_box:
1010      updating new external_fields_load routine
1011    o New package: pkg/seaice
1012      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1013      The sea-ice code is based on Hibler (1979-1980).
1014      Two sea-ice dynamic solvers, ADI and LSR, are included.
1015      In addition to computing prognostic sea-ice variables and diagnosing
1016      the forcing/external data fields that drive the ocean model,
1017      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1018      The implied surface heat flux is then stored in variable
1019      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1020      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1021      non-local transport term.  Because this call precedes model
1022      thermodynamics, temperature under sea-ice may not be "exactly" at
1023      the freezing point by the time theta is dumped or time-averaged.
1024      N.B.: fairly large differences in accuracy occur across
1025            different platforms/compilers; comparison between
1026            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1027            generated output gives:
1028       T           S           U           V
1029      C D M    c        m  s        m  s        m  s        m  s
1030      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1031      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1032      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1033    
1034      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1035    o GAD:
1036      - generated new common blocks to account for call of
1037        same gad routines with differing traceridentities
1038        (needed to modify tracerIdentity indices in GAD.h)
1039      - generated separate common blocks for case useCubedSphereExchange
1040        (Department of Futurology)
1041      - parameter lists to gmredi_?transport: added tracerIdentity
1042      - added new key indices to tamc.h
1043    o external_fields_load:
1044      - added this routine to TAF list
1045      - needed to make some common blocks global and additional storing
1046        along the same lines as exf package (checkpoint_lev?_directives.h)
1047    o exf:
1048      updated external forcing package
1049      - bug fixes carried over from ecco-branch
1050        (missing OBCS_OPTIONS.h in two routines)
1051      - enable easy to use "no forcing".
1052      - added exf I/O for atmospheric loading
1053      - added exf I/O for runoff data
1054      - transfered scaling between exf <-> MITgcm to exf namelist
1055    o Adding new verification experiment global_with_exf.
1056      This verification experiment is almost identical to the
1057      global_ocean.90x40x15 experiment, except that it uses
1058      the exf (and cal) package instead of the
1059      external_fields_load routine (cf README file).
1060    
1061    checkpoint46m_post
1062    o modified testscript to return -- when there are no lines of "%MON" output
1063    o added new flag "quasiHydrostatic" for QH mode
1064      and new routine quasihydrostaticterms()
1065    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1066      New routine: mom_u_coriolis_nh()
1067    o fixed sign of non-hydrostatic metric terms in u and v equations.
1068      Depend on correct sign of gravitySign.
1069    o added work.pc* to .cvsignore in aim directories using ifc
1070    o introduced flag for controllin non-hydrostatic metric terms
1071    o removed gravitySign from PARM04
1072    o switched to g77/ifc from pgf77 in aim experiments
1073    
1074    checkpoint46l_post
1075    o made convective adjustment work with pressure coordinates:
1076     - changed the direction of k-loop in convective_adjustment.F for the
1077       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1078     - adjusted the reference pressure k-index in convective_adjustment.F
1079     - adjusted the convection condition in convect.F (in analogy to
1080       calc_ivdc.F)
1081     - convective_adjustment no longer computes anything on the halos
1082     - removed the warnings about negative salinity from find_rho.F and
1083       find_alpha.F; instead the new routine look_for_neg_salinity, called
1084       at the beginning of find_rho, find_alpha, and find_beta, does a
1085       check of the entire slice, if CPP-option
1086       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1087    checkpoint46l_pre
1088    
1089    checkpoint46k_post
1090    o fixed the verification/global_ocean.90x40x15 experiment:
1091     - new bathymetry (the world according to A., JMC, and M.)
1092     - new initial fields and forcing fields (*.bin files)
1093     - new POLY3.COEFFS (for the next release one should switch to a full
1094       equation of state: JMD95P or MDJWF)
1095     - fixed several errors and redundancies in the data file
1096     - experiment uses looped cells
1097     - added matlab directory with diagnostic scripts for plotting of output
1098    
1099    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1100     - read AIM physics parameters from a file (data.aimphys)
1101     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1102    
1103    checkpoint46j_post
1104    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1105    o move wVel computation at the end of the time step, in S/R integr_continuity
1106    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1107    o update timeave pkg for wVel diagnostic.
1108    checkpoint46j_pre
1109    
1110    checkpoint46i_post
1111    o Clean up AIM package (and keep the results unchanged):
1112      include CPP_OPTION and use IMPLICT NONE in all routines ;
1113      declare all the variables _RL ; use _d 0 for all numerical constants.
1114      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1115    
1116    checkpoint46h_post
1117    o cleaned up the use of rhoNil and rhoConst.
1118      - rhoNil should only appear in the LINEAR equation of state, everywhere
1119        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1120        and the dynamical equations are all divided by rhoConst
1121    o introduced new parameter rhoConstFresh, a reference density of fresh
1122      water, to remove the fresh water flux's dependence on rhoNil. The default
1123      value is 999.8 kg/m^3
1124    o cleanup up external_forcing.F and external_forcing_surf.F
1125      - can now be used by both OCEANIC and OCEANICP
1126    checkpoint46h_pre
1127    
1128     Added code to convert surface volume flux (fresh water) into
1129     a mass flux when using P coordinates in the ocean (OCEANICP).
1130     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1131    
1132    checkpoint46g_post
1133    o Include a new diagnostic variable phiHydLow for the ocean model
1134      - in z-coordinates, it is the bottom pressure anomaly
1135      - in p-coordinates, it is the sea surface elevation
1136      - in both cases, these variable have global drift, reflecting the mass
1137        drift in z-coordinates and the volume drift in p-coordinates
1138      - included time averaging for phiHydLow, be aware of the drift!
1139    o depth-dependent computation of Bo_surf for pressure coordinates
1140      in the ocean (buoyancyRelation='OCEANICP')
1141      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1142        Theta, Salinity, and Pressure in the parameter list. This routine is
1143        presently contained in find_rho.F. This routine does not give the
1144        correct density for 'POLY3', which would be a z-dependent reference
1145        density.
1146    o cleaned up find_rho
1147      - removed obsolete 'eqn' from the parameter list.
1148    o added two new verification experiments: gop and goz
1149      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1150    checkpoint46g_pre
1151    
1152    checkpoint46f_post
1153    o Enable tangent linear (forward mode) gradient checks:
1154      - extended active file handling to g_... files
1155      - added TANGENT_SIMULATION to theSimulationMode
1156      - extended grdchk package accordingly
1157    o added tangent linear setup in verification/carbon/code_ftl
1158    o added adjoint setup in verification/front_relax/code_ad
1159    
1160    checkpoint46e_post
1161    o Added new equation of state -> MDJWF
1162      - EOS of McDougall et al., 2002, JAOT, submitted
1163      - caveat: the equation of state is only valid for a smaller (more
1164        realistic?) range of values than JMD95P/Z and UNESCO
1165      - added masks to the calculation of pressure in store_pressure
1166      - added more check values for density in check_eos (ini_eos.F), some of
1167        the old check values are out of the range of the MDJWF-eos, so don't
1168        expect perfect matches for those
1169    checkpoint46e_pre
1170    
1171    checkpoint46d_post
1172    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1173      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1174      case of pressure coordinates. eosType='JMD95Z' in
1175      combination with buoyancyRelation='OCEANICP' now causes an error.
1176    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1177      in find_alpha/beta.
1178    checkpoint46d_pre
1179    
1180    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1181      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1182    
1183    checkpoint46c_post
1184    o Changes necessary for ocean in p-coordinates
1185     -  Added new buoyancy relation = 'OCEANICP'
1186     -  Added new parameters = gravitySign (this used to be contained inside
1187        the factor dRdZ which I added when we first switched to R coordinates).
1188     X GM/Redi is not compatible (yet)
1189     X bottom drag and no-slip need to be debugged.
1190    checkpoint46c_pre
1191    
1192    checkpoint46b_post
1193    o Added new equation of state -> JMD95Z and JMD95P
1194      - EOS of Jackett and McDougall, 1995, JAOT
1195      - moved all EOS parameters into EOS.h
1196      - new routines ini_eos.F, store_pressure.F
1197    o Added UNESCO EOS, but not recommended because it requires
1198      in-situ temperature (see JMD95)
1199    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1200      unesco.f to be used with POLY3
1201    checkpoint46b_pre
1202    
1203    checkpoint46a_post
1204    o Added (atmospheric) pressure loading
1205      - new field in FFIELDS.h, etc...
1206      - new cpp flag ATMOSPHERIC_LOADING
1207    o Changed hFacC to _hFacC in calc_phi_hyd.F
1208    o Added SHORTWAVE_HEATING to some files for consistency
1209    checkpoint46a_pre
1210    
1211    checkpoint46
1212    further merges from release1_p5
1213    o new ctrl package
1214      - adopted from ECCO environment to enable optimization
1215      - added Eliassen Palm fluxes to controls
1216    o added Eliassen Palm flux controls to gradient check package
1217    o cost package
1218      - Compatible with new ctrl package
1219      - added Eliassen Palm cost hooks
1220      - modif's of existing cost functions
1221    o Adjoint-related bug fixes in kpp:
1222      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1223      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1224    o autodiff package
1225      - flow directives:
1226        + new for S/R do_the_model_io
1227        + enhanced for S/R checkpoint
1228        + new gmredi.flow
1229      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1230        disable adcommon.h/g_common.h by default.
1231      - fixed problem for adjoint of global_max
1232    o modified verification/carbon/
1233    o New setup for adjoint of global_ocean
1234    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1235    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1236    o incorporated hooks for sponge layer code (external_forcing.F)
1237    
1238    checkpoint45d_post
1239    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1240    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1241      (affects plume_on_slope "cg2d" output)
1242    o add new parameter deltaTfreesurf for free-surface time stepping
1243    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1244    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1245    o change phiMin in exp1 (to agree with documentation)
1246    o add new flags:
1247     - T,S forcing inside/outside Adams-Bashforth
1248     - turn off temp,salt advection and/or forcing
1249     - for each tracer, define internal flag for multiDimAdvection & A-B
1250    o monitor: change definition of KE to check conservation of Energy
1251    
1252    checkpoint45c_post
1253    o Removed f90 comments ("!")
1254    o Modified initialisations to enable exf package for MITgcm
1255      (without invoking ECCO_PACKAGE).
1256    o modifications to gradient check package (Martin Losch)
1257      - enable centered differences
1258      - modified format of standard output
1259    
1260    checkpoint45b_post
1261    o cleaned exchange calls in cg2d
1262    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1263    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1264      to configure barotropic setup (Martin Losch)
1265    o moved some initialisations within bi,bj loop in dynamics
1266      (TAF flow dependency)
1267    o in initialise_varia, moved call packages_init_variables
1268      before convective_adjustment_init
1269      (corresponding adjustment of TAF tape initialisation).
1270    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1271    
1272    checkpoint45a_post
1273    o compute Rho over the whole domain (extend iMin,jMin indices)
1274    o specific exchange for X-slice domain (case Ny=1)
1275    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1276    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1277    
1278    checkpoint44h_post = checkpoint45
1279    o Fix to restore differentiability:
1280      place at which packages_init_variables is called in
1281      initialise_varia is crucial for reverse control flow.
1282    o modifications in GMRedi to enable stable adjoint
1283      (corresponding modif's in thermodynamics, dynamics)
1284    o added missing hook for sponge layer code in external_forcing
1285    o modified test cost functions
1286    o storing in gad_advection (plus removal of write(0,*)!
1287    o missing headers TR1.h added in convective_adjustment routines
1288    o errorMessageUnit set non-equal zero in eeboot
1289      (conflict on some platforms, e.g. IBM SP3)
1290    o modified carbon verif.
1291    
1292    checkpoint44h_pre
1293    o vertical grid option: allow to put the Interface at the middle between
1294      2 cell-centers ; replace delZ in pkg/kpp by drF.
1295    o GM Advective form: Tracers are advected using the residual transport (=
1296      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1297    
1298    checkpoint44g_post
1299    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1300      results) ; ifdef missing in thermodynamics.F
1301    
1302    checkpoint44f_pre,checkpoint44f_post
1303    o added PTRACERS package
1304      This allows an arbitrary number of passive tracers to be integrated
1305      forward simultaneously with the dynamicaly model.
1306      + Implemented so far:
1307        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1308        - I/O and checkpointing
1309        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1310      + Not implemented so far:
1311        - KPP
1312        - OBCS
1313      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1314        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1315        line in data.pkg.
1316      + This package is disabled by default since it increases storage.
1317    
1318    
1319    o testscript: added -cleanup option
1320    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1321                 b) enable to filter 2D fields.
1322    
1323    checkpoint44e_pre,post
1324    o re-wrote convective adjustment to use pre-calculated weights
1325      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1326      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1327      Original calls to convect() still in place.
1328    
1329    chkpt44d_pre,post
1330    o added missing EXCLUDE_MONITOR flags
1331    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1332      (incompatible typ in MIN/MAX expressions caused problems
1333      on IBM SP3)
1334    o in genmake added variable MAKEDEPEND
1335      plus resetting for case SunOS
1336    o added timer_stats.c routine for IBM SP3
1337    o removed variables in dynamics
1338    !!! I forgot to create tag chkpt44d_pre !!!
1339    !!! But chkpt44d_pre = chkpt44c_post    !!!
1340    
1341    o real fresh water flux implemented with non-linear free-surface.
1342    
1343    chkpt44c_pre,post
1344    o few fix (mask in shap_s2, EmPmR in external_field_load,
1345      USE_NATURAL_BCS in solve_for_P);
1346    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1347    
1348    checkpoint44b_pre/_post
1349    o merge of relevant stuff from the ecco-branch:
1350      - genmake: removed $S64 overwrite for case SunOS
1351      - pkg/exf: update and corrections for field swapping and obcs
1352      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1353                  harmonized between ECCO and MITgcm
1354      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1355                      updated checkpointing_lev... lists for obcs
1356      - model/src: minor changes in forward_step, plot_field
1357                   added directive for divided adjoint in the_main_loop
1358      - pkg/mdsio: added mdsio_gl_slice
1359    
1360    o check parameters & config (chkpt44a_pre,post)
1361    o OBC and NonLin_FrSurf.
1362    
1363    checkpoint44
1364    o fix bug in mom_vi_del2uv
1365    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1366    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1367    o update AIM experiments (NCEP input files)
1368    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1369    o added some stuff for AD
1370    
1371    checkpoint43
1372    o added two new advection tests
1373    o added global 4x4 degree ocean test
1374    o added test of H&S94 with free surface on cube
1375    o some final mods for gradient check, adjoint,...
1376    
1377    checkpoint42
1378      Fixed AD-related problems:
1379    o Store directives up-to-date with re-arranged Adams-Bashforth
1380      (mainly thermodynamics.F)
1381    o New store directives for multi-dim. advection schemes
1382      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1383      * new common block and key passkey
1384      (mainly gad_advection.F)
1385    o Modified store directives for split of dynamics/thermodynamics
1386      for the case ALLOW_KPP
1387    o Cleaned argument list for timestep_tracer.F
1388    
1389    checkpoint41
1390    o re-formatted/added comments in prologues of key subroutines
1391      to work with protex
1392    
1393  checkpoint40  checkpoint40
1394  o moved calc_gs, calc_gt and calc_tr1 back to model/src  o moved calc_gs, calc_gt and calc_tr1 back to model/src
1395  o added FLT (floats) package from Arne along with demo. experiment  o added FLT (floats) package from Arne along with demo. experiment

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