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revision 1.41 by heimbach, Fri Jul 13 18:08:14 2001 UTC revision 1.304 by adcroft, Wed May 26 14:50:09 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    
7    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
8      vector-invarianet equations
9      - note: does *NOT* yet use same variable visc. for no-slip BC's.
10    o recoded the lateral boundary conditions for non-hydrostatic w, this time
11      hopefully without new bugs
12      - still to do: biharmonic friction for non-hydrostatic w
13    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
14    o regenerated output for global_ocean_ebm (using -ieee)
15    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
16      of mom_common/
17      - simple re-arrangement of instructions within computing loop
18    checkpoint53d_pre
19    
20    checkpoint53c_post
21    o new version of coupler for AIM+thSIce and Ocean models
22     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
23     - land: change Evaporation of snow
24     - aim with thSIce: fix bug in snow-precip.
25    o changes to calc_gw.F
26     - bug fix for w^2 term near the bottom boundary
27     - (hopefully) improve the lateral slip boundary condtions for use with
28        partial/looped cells
29      - because the bug fix changes two verification experiments anyway (exp5
30        and plume on slope), change the lateral boundary condition from half slip
31        to the value of no_slip_sides
32    o ebm package wasnt quite up to the parallel task. Fixed that.
33    o Adjoint of EBM package + verification
34      * TLM OK
35      * ADM not sufficient accuracy yet (needs further testing)
36    
37    checkpoint53b_post
38    o Commiting new energy balance model to repository
39      * package is pkg/ebm
40      * verif. is verification/global_ocean_ebm
41      * references are in ebm_driver.F
42    C      * X. Wang, P. Stone and J. Marotzke, 1999:
43    C        Global thermohaline circulation. Part I:
44    C        Sensitivity to atmospheric moisture transport.
45    C        J. Climate 12(1), 71-82
46    C      * X. Wang, P. Stone and J. Marotzke, 1999:
47    C        Global thermohaline circulation. Part II:
48    C        Sensitivity with interactive transport.
49    C        J. Climate 12(1), 83-91
50    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
51    C        Destabilization of the thermohaline circulation
52    C        by atmospheric eddy transports.
53    C        J. Climate 7(12), 1870-1882
54    o Will need long integration testing.
55    checkpoint53b_pre
56    
57    o created pkg/mom_common in preparation for variable viscosity code
58    o renamed and split ini_mnc_io
59    o pkg/land: only liquid water can diffuse or run-off
60    o AIM using land: soil wetness availability account for snow
61    o added printMapIncludesZeros to EEPARMS namelist
62    
63    checkpoint53a_post
64    o restore TAMC compatiility for exf_constants.h
65      (no usage of _d in .h)
66    o Additional storing in KPP in an attempt to fix
67      TAMC problem with adjoint of KPP code.
68      (no success...)
69      Identical code works fine with TAF.
70    o Fixed verification/natl_box_adjoint experiments.
71      Initial conditions for Experiments 4 and 5 are now
72      set to "SEAICE_initialHEFF=0", which is more reasonable,
73      and hence gives results closer to that of Experiment 2.
74      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
75    
76    checkpoint53
77    o stable checkpoint with up to date adjoint
78      TLM tests only run for 1st grdchk at the moment. Its unclear if
79      this is a code problem or a problem with resetting code for g_
80      variables that is being autogenerated wrong.
81      Otherwise:
82       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
83       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
84         are both still in chaos following their security messes.
85    
86    checkpoint52n_post
87    o various build (mostly genmake2) changes including:
88      - ability to build/run more easily within Cygwin and MacOS X
89      - more complicated Makefiles with a stronger dependence on Gnu Make
90    o pkg/seaice modifications
91      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
92        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
93        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
94      - changed proxy for geostrophic velocity and updated
95        verification/lab_sea/results/* accordingly
96      - removed ADI dynamic solver from pkg/seaice
97      - replaced all occurrences of 1/CSTICE or 1/CSUICE
98        they caused a segmentation fault under certain circumstances
99      - removed unused field WATR
100    o bug fix in exf-package:
101      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
102         now reflect that.
103    o small fixes in the cal-package:
104      - set reference date to first of January for the 'model'-calendar
105      - failing of cal_CheckDate in cal_FullDate now actually results in a
106        warning
107    o small modifications in exf-package to increase flexibility:
108      - change climtempfreeze from a constant to a runtime parameter that
109        is specified in data.exf_clim (default = -1.9)
110      - introduce runtime parameter windstressmax (default = 2.0) that is
111        specified in data.exf
112    o fix in pkg/thsice:
113      - update Evap (Tsf changes) to be consistent with Latent heat flux
114      - maintain snow precipitation unchanged (even if Tsf >=0).
115     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
116    
117    checkpoint52m_post
118    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
119      this does not change any of the results, because myIter=0 in swfrac always
120      lead to jwtype=2 (the default anyway), but the call makes little sense
121      as a default
122    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
123    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
124      atmospheric model (AIM) to use it ; add a "slab ocean" component.
125    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
126    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
127    o extending useSingleCpuIO option to work with new exch2 I/O format
128      - old-style, missing-tile I/O is still accessible by defining CPP
129        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
130    o monitor package can write to NetCDF files and/or STDOUT
131    o fix re-definition bug in MNC_GRID_INIT_ALL()
132    o doc/api_reference added
133      - a framework for building an API Reference Manual using all
134        the "protex" comments embedded in the code
135      - see pkg/generic_advdiff, pkg/mnc for examples
136    o MNC:
137      - make myThid the last argument for all subroutines
138      - new default for the grid files: NO halos
139      - add useMNC and other run-time flags
140      - separate per-file-group handling of the unlimited dimension
141      - early initialization of MNC w/ flags read at the eeboot stage
142        and lookup tables set in initialize_fixed
143      - write all MNC output to a freshly-created directory
144    o thermodynamics sea-ice (thsice) is now tested with testreport.
145    o test exp. advect_cs: use the standard cs32 grid ; update output.
146    o Added functionality to grdchk:
147      pick global i,j,k position (or nearest wet) where to perform check.
148    
149    checkpoint52l_post
150    o new land formulation:
151      a) use ground enthalpy as prognostic variable to ensure exact
152         energy conservation.
153      b) account for water temperature and for latent heat of freezing
154         in all processes (rain, run-off, ground storage)
155      c) compute surface and ground temperature implicitly.
156    o aim_v23 modification for new land model:
157      a) Treat separately land / ocean / sea-ice surface fluxes
158         to allow implicit computation of land & sea-ice surface temp.
159      b) add snow precipitation.
160    checkpoint52l_pre
161    
162    o fix problem (when 1 tile is empty) in min/max monitor.
163    o fix bug in timeAve (u,vZetatave in common block)
164    o no restoring terms under ice for pkg/seaice
165    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
166    o bug fix for pkg/seaice pickups
167    o change MNC call locations and add coordinate attributes
168    o mask vorticity at the corner ; affects global_ocean.cs output
169    o fix ini_curvilinear_grid ; test CS experiments with mpi
170    o aim.5l_cs: modify sea-ice fraction input file ; update output
171    o exf: Adding simple range check routine for exf fields after read
172    
173    checkpoint52k_post
174    o removed top-level directory "diags"
175      - we migrated these functions to pkg/timeave a long time ago
176    o fixed bug introduced in pkg/monitor
177    o accuracy ctrlprec = 32 insuffient for gradient checks using
178      averaged fields (I/O via cost_averages)
179      -> use ctrl.h in active_file*.F to control I/O precision.
180    o paramter list of CALL ADTHE_MAIN_LOOP
181    o added initial do_the_model_io to ecco
182    o set all ...Freq to zero after cost_final
183      taveFreq, dumpFreq, pChkptFreq
184    o MAIN and ECCO differentiability restored
185    
186    checkpoint52j_post
187    o fix nchklev in tamc.h for global_ocean...
188    o Bringing flow and store directives up-to-date
189    o Really weird thing!
190      call do_the_model_io from the_main_loop with parameters
191      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
192      TAF places a faulty re-call of initialise_varia
193      after cost_final call which should not be there!
194    checkpoint52j_pre
195    
196    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
197      error messages
198    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
199    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
200      debug output
201    o modfied mdsio_writefield.F to handle non-global files under exch2
202    o update AIM Cubed-Sphere exp (aim.5l_cs):
203      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
204    o update AIM Equatorial Channel exp:
205      use standard aim_v23 pkg and change the SST fields to be more realistic.
206    o globalFile now works with exch2
207    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
208      mon_vort3.F to make exch2 friendly with >1 tile per cube face
209    o limit timeave output for hi-res integrations
210    
211    checkpoint52i_post
212    o removed CPP_EEOPTIONS.h from verification/*/code
213    o updated the tiling for global_ocean_pressure
214    checkpoint52i_pre
215    
216    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
217      the old pkg/aim).
218    
219    checkpoint52h_pre
220    o shortened offending lines in exch2_send_rx?.template
221    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
222    o genmake2: add build & execute test for NetCDF code
223    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
224      old grid files, moved CPP_EEMACROS.h to pkg/exch2
225    o added useSingleCPUIO flag to monitor.F and mon_out.F
226    o added temporary hack for sea-ice dynamics on the cube:
227      metric terms are ignored and it is assumed that
228      there is no sea-ice on cube faces 1, 2, 4, and 5.
229    
230    checkpoint52f_post
231    o added exch2 cube routines to pkg/exch2
232    o modified hs94.cs-32x32x5 to use it
233    o added new grid files to hs94.cs-32x32x5
234    checkpoint52f_pre
235    
236    checkpoint52e_post
237    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
238      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
239    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
240      to work with implicit vertical advection and AB ;
241    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
242    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
243     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
244    checkpoint52e_pre
245    
246    o fix bug in impldiff when Nr=1 or Nr=2.
247    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
248    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
249    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
250      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
251    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
252    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
253    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
254    
255    checkpoint52d_post
256    o re-tiled many expts to allow comparison in multi-processor mode
257      - updated output accordingly
258      - changed hs94.128x64x5 to use intial T from file rather than use the
259        random number generator
260    o add infrastructure in model routines for fizhi and gridalt packages
261    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
262    o changes to permit hi-res, cubed-sphere, configuration
263      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
264      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
265      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
266        of surface winds for the cube
267      (A verification experiment, based on global_ocean.cs32x15, but with
268       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
269       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
270       complete with example surface forcing files and matlab scripts to look
271       at the output and compare it with that of global_ocean.cs32x15.)
272    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
273       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
274       to conform to the common rule.
275    o check-in the first version of the coupler + interfaces for multi-components
276       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
277       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
278       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
279       - ocean and atmos. share the same horizontal grid (no interpolation).
280       - exchanges between component and coupler is done in forward_step
281    o new verification experiment, cpl_aim+ocn:
282       coupled ocean - AIM atmosphere on cs32 grid.
283    
284    checkpoint52d_pre
285    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
286    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
287    
288    checkpoint52c_post
289    o Fixing OPTIONS files for use of exf:
290      - ALLOW_ECCO not needed
291      - ECCO_CPPOPTIONS.h should not be included from
292        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
293        as has been the case in the past
294      - All cal/exf related options are currently set in
295        single header file. Should remain so until we
296        agree on a consistent new policy.
297    o Removed all CPP options for cal package.
298      cal has no more CPP options.
299    o modified STOREs in GAD_ADVECTION
300    o corrected key comp. for passkey
301    
302    checkpoint52b_post
303    o new version: "thsice" of thermodynamic sea-ice pkg:
304     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
305     - modify fluxes but do not change theta directly;
306     - light cleaning of bulk_force pkg (still needed with thsice).
307     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
308       + output_thsice.txt to test thsice & bulk_force pkgs.
309    o put back grid & coriolis monitor output.
310    checkpoint52b_pre
311    
312    o call "do_the_model_io" at the beginning (=> dump initial state)
313    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
314    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
315      (need info on NUMBER_OF_PTRACERS)
316    o missing PTRACERS headers in some routines
317    o default tamc.h in pkg/autodiff supposed to crash
318      to ensure proper customization
319    
320    checkpoint52a_post
321    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
322      - moved surfaceTendencyTice from pkg/seaice to main code
323      - subroutine FREEZE_SURFACE now limits only surface temperature
324        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
325        => new output.txt for global_ocean.cs32x15 & global_with_exf
326      - keep the old version of FREEZE for backward compatibility;
327        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
328      - corresponding modifs for TAF directives
329    o added surface flux output variables to TIMEAVE_STATVARS
330    o time-averaged output for pkg/ptracers
331    o fix problem with ECCO-related divided adjoint
332      snapshot file was missing some ad-variables,
333      but no warning issued by TAF
334    
335    checkpoint52a_pre
336    o some bug fixes for #undef REAL4_IS_SLOW
337    
338    checkpoint52 = ecco_c52_e35
339    o after testing adjoints of checkpoint51u_post
340    
341    checkpoint51u_post
342    o this is the post-merge tag of the ecco-branch
343      (needs another clean checkout and re-testing)
344    o various natl_box_adjoint configs and results
345      but no input fields
346    o obcs adjoint not yet merged!
347    o adding ECCO global 1x1 and 2x2 degree configs
348    o updated/extended some store directives for seaice
349    o pkg/ecco now containes ecco-specific part of cost function
350    o top level routines the_main_loop, forward_step
351      supersede those in model/src/
352      previous input data.cost now in data.ecco
353      (new namelist ecco_cost_nml)
354    o in ctrl/ cleaned some cross-dependencies and updated CPP options
355    
356    checkpoint51t_post
357    o this is the pre-merge tag of the ecco-branch
358    
359    checkpoint51s_post
360    o cleanup: removed various obsolete #define-s
361    o pkg/grdchk
362      - renamed 'ph-grd 3' to 'grad-res'
363      - merged from ecco-branch
364        (remaining bug fixes for obcs gradient checks)
365      - additional high-precision output for testreport
366        (grep for 'precision_grdchk_result')
367    
368    checkpoint51r_post
369    o cleaned up or removed CPP_OPTIONS.h files
370    o updated results for some of the tests to reflect the new
371      optfiles (-ieee: -O0 instead of -O3)
372    
373    checkpoint51q_post
374    o cd_code:
375      - moved cd_scheme.F -> cd_code_scheme.F
376      - separate read_checkpoint from cd_code_ini_vars.F
377      - separated cd_code part from write_checkpoint
378      - updated AD_SOURCE, generated .flow
379      - added CD_CODE_VARS.h to the_main_loop
380      - Moving cd_code specific store dir.s to pkg/cd_code
381    o ctrl package totally restructured
382      - pack/unpack now optional and decoupled from
383        xx_/adxx_ I/O
384      - ctrl_pack/unpack cleaned
385        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
386      - confined inclusion of AD_CONFIG.h to where necessary.
387    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
388    
389    checkpoint51p_post
390    o create initial cd_code package
391      - WARNING: the initialization of fields within packages
392        is broken because INI_FIELDS (where READ_CHECKPOINT is
393        called) is called *before* PACKAGES_INIT_VARIABLES.
394        This seems to be backwards since
395        1) its important to initially zero the entire field including
396           the "halo" region
397        2) zeroing needs to be done *before* reading pickup info
398           and the pickup call might or might not happen in any
399           particular run
400      - this needs an overhaul for R2
401    o cleanup verification/*/code/GMREDI_OPTIONS.h
402    o cleanup testreport
403    
404    checkpoint51o_post
405    o bringing AD-related verif's up to date with genmake2
406      - carbon/
407      - global_ocean.90x40x15/
408      - hs.94.1x64x5/
409      - (front_relax/ )
410    o (more) consistent directory structure for AD-related verif.'s
411    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
412    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
413    o bug fix in find_alpha.F for MDJWF:
414      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
415        change rho -> rho-rhoConst
416      - replace call find_rho to find_rhonum
417    o initialisation of rFlx extended to full array (required by TAF)
418      and shifted to thermodynamics
419    o removed PTRACERS.h in ptracers routine
420    o added surfacetendencyPtr to S/R parameter list pracers_forcing
421    o Correcting initialisations for fVerU, fVerV.
422    o helping TAF to recognize dependency on kUp for
423      fVerU, fVerV
424    o Replacing delZ by delR in pkg/ctrl/
425    checkpoint51o_pre
426    
427    o undid all of cp51 pending some cleanups and discussion
428    o added the [#include "AD_CONFIG.h"] statement to all files that need
429       it for adjoint/tl #defines
430     o re-worked the build logic in genmake2 to support AD_CONFIG.h
431     o removed tools/genmake since it no longer works
432    
433    checkpoint51n_post
434    o modifications to make FREEZE flux visible to pkg/kpp
435      - moved surfaceTendencyTice from pkg/seaice to main code
436      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
437      - subroutine FREEZE now limits only surface temperature
438        (this means new output.txt for global_ocean.90x40x15,
439         global_ocean.cs32x15, and global_with_exf)
440    o added surface flux output variables to TIMEAVE_STATVARS
441    
442    checkpoint51n_pre
443    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
444    o added [#include "AD_CONFIG.h"] to all files that use the following
445      defines:
446      - ALLOW_ADJOINT_RUN
447      - ALLOW_TANGENTLINEAR_RUN
448      - ALLOW_ECCO_OPTIMIZATION
449    
450    checkpoint51m_post
451    o incorporating changes to get TAMC/TAF working in genmake2
452      - added new TAMC/TAF targets to the Makefile
453      - various cleanups related to package handling
454      - these changes should have no impact on the forward model
455    
456    checkpoint51l_post
457    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
458     - faster algorithm for cal_addtime.F
459     - higher precision arithmetic, where needed
460     - pkg/exf *startdate variables changed from calendar date to
461       model integration time
462    
463    checkpoint51l_pre
464    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
465    o enable to apply restoring on S & T only in a latitude band.
466    o update output (external_forcing_surf modif. change truncation errors)
467       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
468    
469    checkpoint51k_post
470    o change default to: useNHMTerms=.FALSE.
471     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
472       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
473     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
474        exp1, ideal_2D_oce
475     - change data file of oceanic exp (leave the results unchanged for now)
476       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
477    o set gravitySign automatically according to the vertical coordinate used
478      (and change sign: back to "logical" value: +1 when R increases downward)
479    o added an include barrier to the default CPP_OPTIONS.h and
480      removed the #include "PACKAGES_CONFIG.h" from it
481    o fix a bug in mom_fluxform (from chk51j_post)
482    
483    checkpoint51j_post
484    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
485    o adjusted some flow directives (dynamics, thermodynamics)
486    o added cubed-sphere case to test cost function
487    o heckpoint_lev?_directives.h now include
488      pkg-specific directives, whenever those are enabled.
489    o Moving pkg-specific flow directives to corresponding pkg
490      Moving pkg-specific differentiation list to corresponding pkg
491      Moving pkg-specific checkpoint-lev storing to corresponding pkg
492      ---> conventions are
493           - pkg_ad.flow
494           - pkg_ad_diff.list
495           - pkg_ad_check_lev?_dir.h
496    
497    checkpoint51i_post
498    o merge of the branch-genmake2
499      - knowingly breaks the older genmake
500      - automatic generation of all ALLOW_${PKG_NAME} defines
501      - new testreport supersedes older testscript
502    o large number of package inclusion and header cleanups
503    checkpoint51i_pre
504    
505    o new output for adjoin of global ocean vector invariant
506    o fix for checkpoint of thermodynamic seaice and bulk_force
507    o Steph gchem various cleanups
508    
509    checkpoint 51h_pre
510    o fixed some single quotes
511    o modify gchem pkg to be more versatile
512    o modifications to clean up dic pkg
513    o add pkg/cfc
514    
515    checkpoint51g_post
516    o provide links for ARPACK and ADM*TLM
517    o start removing verification/vero/
518    o update AD-related stuff
519      (in particular some IF-statements in model/src/ routines)
520    o adding to verification/global_ocean.90x40x15/ adjoint of
521      vector invariant setup
522    
523    checkpoint51f_post
524    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
525    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
526      of tracer Green's fucntions for ocean inversion project.
527    
528    checkpoint51f_pre
529    o Added on-the-fly spatial interpolation capability
530        "USE_EXF_INTERPOLATION" to pkg/exf.
531      - This is a temporary Cartesian-grid hack until
532        the super-duper ESMF coupler becomes available.
533      - See verification/global_with_exf/README for usage example.
534      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
535        flags and modified pkg/seaice accordingly.
536    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
537        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
538        non-local transport term.
539    
540    checkpoint51e_post
541    o pkg/mom_vecinv:
542      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
543      - add time-ave diagnostic of vorticity advection.
544    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
545    o atmospheric geopotential: - include water vapor effect;
546                                - use p^kappa in p* scaling.
547    o land pkg: read initial state from files.
548    o AIM : add stratospheric drag in the upper level
549    
550    checkpoint51d_post
551    o change function ILNBLNK (=> last non-blank char.) to return zero
552      (instead of the string length) when the string. char is empty
553    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
554    o modif's to restore TAMC compatibility
555      - avoid "_d" constructs in PARAMETER declarations
556      - avoid interrupting lines by comment lines
557    o Use cluster local disks for purely local I/O
558      vs. globally visible disks needed for ctrl stuff
559      (merged from ecco-branch)
560      - new active_file_loc... and mdsio_..._loc routines
561      - affected packages: autodiff, ctrl, grdchk, mdsio
562    
563    checkpoint51c_post
564    o introducing integer flag debugLevel
565      - debLevZero: suppress all output
566      - debLevA: standard
567      - debLevB: equivalent to current debugMode=.TRUE.
568    o introducing pathname variable mdsioLocalDir for mdsio
569      that can be specified at runtime
570      (relevant for cluster I/O to local disk)
571    `
572    >>>checkpoint51b_post
573    adjoint of ptracers
574    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
575    o extended state in checkpoint_lev?, etc.
576    o alternative ctrl/cost with tr1 or ptracer
577    o new comlev1_bibj_ptracers
578    o new ptracers.flow
579    o made ptracers_forcing same as external_forcing_s
580    o added verification for adjoint with ptracers
581      - adm. grdchk fail so far
582      - tlm. grdchk OK
583      - checked tapelev/comlev recomputations: OK
584    <<<checkpoint51b_pre
585    
586    checkpoint51a_post
587    o added code for biogeochemistry package
588      - new pkgs: dic, gchem
589      - new subroutine in ptracers
590    o modify code for biogeo packages
591      - in model/src and pkg/ptracers
592    
593    checkpoint51
594    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
595      - autodiff, ctrl, exf, grdchk, seaice
596      kept separate packages
597      - cost, ecco, obcs
598    o updating verification/internal_wave, verification/lab_sea
599      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
600    
601    checkpoint50i_post
602    o Preparing next differentiable checkpoint and sync
603      of MAIN vs. ecco-branch
604      - 1st step: this one is differentiable
605      - 2nd step: next(! not this) checkpoint will have updated packages
606                  from ecco-branch)
607    
608    checkpoint50h_post
609    o new package "land": provide surface BC for AIM.
610    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
611    o AIM: use true log-P extrapolation for near surface temp (= as in
612        F.Molteni paper) ; update aim.5l_cs output.
613    o New variable in PARM03 for more flexible pickups
614    o somewhat cleaned package initialisation sequence for
615      ctrl/ cost/ ecco/ in packages_... routines
616    
617    checkpoint50g_post
618    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
619      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
620      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
621        made the default because of faster convergence than ADI
622    
623    checkpoint50f_post
624    o exf totally restructured
625      - replaced all exf_set_ routines by one generic exf_set_gen.F
626        and made sure it's still differentiable
627      - split exf_getffields.F into new exf_bulkformulae.F
628      - exf_inscal_/exf_outscal_ suffixes consistent with field names
629      - updated adjoint/makefile and relevant verif. accordingly
630    
631    checkpoint50f_pre
632     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
633          + change Evap over land. (update aim.5l_cs output)
634     o added missing .cvsignores and made uniform across expts
635     o changed configuration of tidal_basin_2d expt
636     o added pkg/debug functions for tracing code in fatal crashes
637     o tidied pkg/monitor to use MONITOR_OPTIONS.h
638     o new fn in pkg/monitor to stop model if solution grows too big
639     o removed lots of single quotes from comments
640    
641    checkpoint50e_post
642    o make KPP work with PTRACERS
643     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
644       nearly a copy of kpp_transport_s
645     - there is no analogue to SurfaceTendencyS, so I have to use
646       gPtr(of the surface layer) instead
647    o add a new platform SunFire+mpi (SunFire 15000) to genmake
648    checkpoint50e_pre
649    
650    checkpoint50d_post
651    o change kpp output from multiple-record state files to single-record state
652      files analogous to write_state.F
653    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
654      analogous to the cg2d-related output.
655    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
656      so that writing to internal file fn (with length 512) fails.
657    checkpoint50d_pre
658    
659    checkpoint50c_post
660    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
661    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
662    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
663    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
664    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
665    
666    checkpoint50c_pre
667    Merging from release1_p13:
668    o bug fix for pkg/seaice dynamic solver
669    o Added SEAICE_initialHEFF to pkg/seaice
670    
671    checkpoint50b_post
672    o store u*,v* in gU,V instead of in guNm1,gvNm1
673    o in order to put the momForcing out of the Adams-Bashforth:
674      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
675      to timestep.F
676    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
677    o re-generate output for highly sensitive test-exp:
678       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
679    
680    checkpoint50b_pre
681    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
682    o corrected CPP option mismatch in exf_Bulk... functions for case
683      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
684    
685    checkpoint50a_post
686    o Bug fix for merging between c50 and KPP.
687      ikey was passed from thermodynamics to kpp_calc via
688      common block rather than being recomputed in kpp_calc,
689      in contradiction with new key itdkey.
690      New key ikppkey created, and tamc.h headers updated.
691    
692    checkpoint50
693    - 2nd step of merge with ecco-branch:
694      merge changes in ecco-branch back into main trunk
695    - bug fix in find_alpha
696    - more storing in gmredi_calc_tensor.F, kpp_routines.F
697    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
698    - merged some sliced AD support routines
699    
700    checkpoint49
701    merged from ecco-branch:
702    o exf:
703      - Enable initialisation of forcing fields to constant
704        (runtime) values.
705      - in exf_getffields.F
706        Reduce i-/j-loop to interior domain, discarding overlaps.
707        That also fixes wrong TAF-key computations for key_1, key_2
708        with bulf formulae.
709      - exf_init.F modify #ifdef for exf_init_evap
710      - exf_getffieldrec.F, ctrl_getrec.F
711        The following INT-usages are not safe:
712          fldsecs  = int(fldsecs/fldperiod)*fldperiod
713          fldcount = int(fldsecs/fldperiod) + 1
714        and were modified.
715    o autodiff: checkpoint_lev...
716      - updated storing for bulk formulae (some arrays were missing)
717      - added state for seaice package
718      - synchronized with main branch
719    o DIVA:
720      Modif.s in
721      - the_main_loop.F
722      - the_model_main.F
723      and added cost_final_restore.F cost_final_store.F
724      o With these changes, it is possible to fully separate
725        the first forward run to compute the cost function (mdthe_main_loop)
726        and adjoint runs over individual DIVA intervals (adthe_main_loop)
727        into separate model executions.
728        This enables better tuning of DIVA to given queue sizes.
729      o Loss of cost function value in consecutive DIVA runs is
730        fixed by storing to 'costfinal' file.
731      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
732        beginning/end of adjoint integration is accounted for.
733      The current changes apply to TAF-1.4.26.
734      TAF has one remaining bug, requiring one manual change
735      (see MITgcm manual).
736    o cal: synchronized between MAIN and ecco-branch
737    
738    checkpoint48i_post
739    o Changes to restore differentiability of code w.r.t. previous tag
740      (mostly adding new routines to make list and replacing
741      pressure by totPhiHyd).
742    o Updated and merged grdchk package
743      - has both ADM and TLM checks
744      - works for single- and multi-proc.
745      - output cleaned
746      - worked successfully for parallel DIVA
747    o genmake:
748      - Adding -platform=SP4
749      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
750    o Modif. for DIVA:
751      ctrl_unpack should not be called in intermediate DIVA interval.
752      (similar thing would apply for active files such as
753      tbar, sbar, psbar, which should not be reinitialised;
754      only relevant for ecco-branch)
755    
756    checkpoint48h_post
757    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
758    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
759    o Added SEAICE_initialHEFF to pkg/seaice
760    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
761    
762    checkpoint48g_post
763    --- EOS:
764    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
765      store total Potential in totPhyHyd for diagnostics & EOS.
766    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
767    --- Pressure/geopotential gradient:
768    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
769    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
770      ( changes results of global_ocean_pressure )
771    o NLFS + z-coord.: add eta*Rho' contribution.
772    o accurate phiHyd when using interface-W at the middle between 2 centers
773     ( changes results of ideal_2D_oce )
774    o includes r* 2nd term in potential gradient.
775    
776    checkpoint48f_post
777    Merging from release1_p12:
778    o Modifications for using pkg/exf with pkg/seaice
779      - improved description of the various forcing configurations
780      - added basic radiation bulk formulae to pkg/exf
781      - units/sign fix for evap computation in exf_getffields.F
782      - updated verification/global_with_exf/results/output.txt
783    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
784      (SBO) core products, including oceanic mass, center-of-mass,
785      angular, and bottom pressure (see pkg/sbo/README.sbo).
786    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
787      to avoid negative values in shallow regions.
788      - updated verification/natl_box/results/output.txt
789      - updated verification/lab_sea/results/output.txt
790    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
791    o Added useSingleCpuIO option (see PARAMS.h).
792    o Updated useSingleCpuIO option in mdsio_writefield.F to
793      work with multi-field files, e.g., for single-file pickup.
794    o pkg/seaice:
795      - bug fix in growth.F: QNET for no shortwave case
796      - added HeffFile for specifying initial sea-ice thickness
797      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
798    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
799      kpp_transport_t.F, forward_step.F, and the_main_loop.F
800    o pkg/seaice:
801      - adjoint-friendly modifications
802      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
803    
804    checkpoint48e_post
805    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
806    o dynamics: change definition of computational domain & adapt mom_fluxform
807      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
808    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
809        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
810        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
811        global_ocean.90x40x15 global_with_exf global_ocean_pressure
812        inverted_barometer solid-body.cs-32x32x1
813      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
814    
815    checkpoint48d_post
816    o in preparation for r*:
817     a) use pre-computed gradient of hydrostatic potential:
818        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
819     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
820        => affects results of glob_oce_pressure (different truncation error)  
821      update output.txt of ideal_2D_oce & global_ocean_pressure
822    
823    checkpoint48d_pre
824    o in preparation for r*:
825      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
826      pass the 2 comp. of the grad. as arguments to momentum S/R.
827      but for the moment, only used if it does not change the results.
828    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
829    
830    checkpoint48c_post
831    Modifications in treatment of initial flux forcing controls
832    to avoid extra storing of flux fields.
833    
834    checkpoint48c_pre
835    o Added tidal_basin_2d experiment (currently 1D!)
836    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
837    
838    checkpoint48b_post
839    o r* coordinate added in #ifdef NONLIN_FRSURF block.
840     (modification to pressure gradient not yet implemented)
841    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
842      (for U & V) that are used for vertical advection of momentum.
843    
844    checkpoint48a_post
845    o In preparation for r*, use temp. array to compute vertical transport
846       in flux-form momentum pkg. => change results of few test-exp.
847      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
848                        lab_sea, natl_box & plume_on_slope
849    
850    checkpoint48
851    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
852    
853    checkpoint47j_post
854    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
855    o moved adexch from forward_step to addummy_in_stepping
856    o added exch in ctrl_map_...
857    o aveFreq.=0. at end of cost_final to avoid overwrite in
858      reverse checkpointing loop
859    o Yet more changes in gmredi:
860      * adgmredi_calc_tensor
861        avoiding all recomputation of gmredi_slope_limit
862      * adgmredi_x/y/rtransport
863        added flag for excessive storing to avoid recomp. of
864        u/v/rtans, dTdx/y/z
865        -> this is not really necessary and very memory-consuming
866      * adgmredi_slope_psi:
867        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
868      * gmredi_slope_limit
869        re-activated full calculation of taperfct for case 'ac02'
870    o updating verification/ adjoints of carbon, global_ocean.90x40x15
871    
872    checkpoint47i_post
873    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
874    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
875      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
876    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
877    o gmredi: fix few bugs.
878    
879    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
880    This will be a good checkpoint to plug into the ecco-branch.
881    o few modif.'s to get latest version adjointed
882      (mainly kick out code in ini_linear_phisurf)
883    o modif's to run adjoint with exactConserv
884    o case GM_BOLUS_ADVEC should be cleaned
885      S/R gmredi_slope_psi should be cleaned
886    o verification/carbon now has exactConserv=.TRUE.
887    
888    checkpoint47g_post
889    o time-average AIM output: becomes independent from statvars time-average
890      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
891    o After TAF bug fix:
892      Tested adjoint of gmredi package.
893      Tests were done with checkpoint47 rather than with latest
894      checkpoint47f_post since the latter is broken for the adjoint
895      verification/carbon/ contains both ADM and TLM gradient checks.
896    Here they are, before they get changed/lost/stolen.
897    Mostly modif.'s to fix numerical sensitivities.
898    Gradient checks OK for
899    - GM_taper_scheme:
900      * clipping
901      * ac02
902      * linear
903      * glw91
904      * dm95
905      * ldd97
906    - GMREDI_OPTIONS:
907      * GM_VISBECK_VARIABLE_K
908      * GM_NON_UNITY_DIAGONAL
909      * GM_EXTRA_DIAGONAL
910      * GM_BOLUS_ADVEC
911    in conjunction with data.gmredi parameters to be checked in
912    in a few minutes under verification/carbon/code/
913    
914    checkpoint47f_post
915    Merging from release1_p10:
916    o modifications for using pkg/exf with pkg/seaice
917      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
918        and SEAICE_EXTERNAL_FLUXES
919      - pkg/exf CPP options EXF_READ_EVAP and
920        EXF_NO_BULK_COMPUTATIONS
921      - usage examples are Experiments 8 and 9 in
922        verification/lab_sea/README
923      - verification/lab_sea default experiment now uses
924        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
925    
926    checkpoint47e_post
927    o created a tag prior to creating a branch
928    
929    checkpoint47d_post
930    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
931      at the bottom boundary had an erroneous half slip boundary condition
932    o added bottom drag and no slip boundary condition capabilities to
933      oceanic pressure coordinates code
934    o added new verification experiment global_ocean_pressure, this experiment is
935      also described in the tutorial section of the manual
936    checkpoint47d_pre
937    
938    checkpoint47c_post
939    o Added a verification experiment for a global cubed-sphere ocean run
940      -  verification/global_ocean.cubed32x32x30
941      -  uses pkg/therm_seaice and pkg/bulk_forcing
942    
943    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
944    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
945      when using P-coordinate; only implemented for atmospheric config.
946    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
947      NOTES: requires option NONLIN_FRSURF to be "#define".
948    o update advect_xz/results/output.txt (left from checkpoint44g_post)
949    
950    checkpoint47b_post
951    Merging from release1_p9:
952    o pkg/seaice
953      - removed GOTO's and added taf directives
954      - double precision constants to reduce the g77 (Linux)
955        to F77 (SGI) differences reported in release1_p8
956    o tools/genmake
957      - added SGI options
958    o verification/testscript
959      - updated to that of checkpoint47a_post
960    o verification/global_ocean.90x40x15/input/eedata
961      - modified for SGI f77 compatibility
962    o verification/lab_sea
963      - added description of sea-ice model
964      - added missing matlab routines
965      - added test of thermodynamics parallelization
966    
967    checkpoint47a_post
968    o new pkg: aim_v23
969     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
970       for now, keep the same surface forcing as before.
971     - Part-Cell implemented into AIM; check that Heat & Water are conserved
972     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
973     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
974    o add diagnostic of surface correction term in monitor output
975    
976    o bulk_force and therm_seaice
977    - Two packages:  bulk_force (Bulk forcing)
978      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
979    - Earlier integration from Stephaine Dutkiewicz
980      and Patrick Heimbach.
981    - Two ifdef statements for compile time,
982       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
983    
984    checkpoint47
985    differentiable version of checkpoint46n_post
986    o bug fix in quasihydrostaticterms
987    o * "clean" adjoint code (in terms of extensive recomputations)
988        can now be obtained for all GMREDI options (i.e. for
989        - GM_VISBECK_VARIABLE_K
990        - GM_NON_UNITY_DIAGONAL
991        - GM_EXTRA_DIAGONAL
992        - GM_BOLUS_ADVEC )
993      * However, wrong gradient check problem remains unsolved.
994      * New CPP options have been introduced for different
995        tapering schemes
996    o external_fields_load now part of differentiation list
997    o pressure needs multiple storing;
998      would be nice to have store_pressure at beginning or
999      end of forward_step, e.g. by having phiHyd global (5-dim.)
1000      (NB: pressure is needed for certain cases in find_rho,
1001      which is also invoked through convective_adjustment).
1002    o recomputations in find_rho for cases
1003     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1004    o #define ATMOSPHERIC_LOADING should be differentiable
1005    o ini_forcing shifted to begining of initialise_varia
1006    o Incorporating QNVS line search routines into MITgcm
1007      (this is separate code, and therefore not under pkg)
1008      lsopt/, optim/
1009    o Updated verification/carbon/
1010      - #define GM_VISBECK_VARIABLE_K
1011      - GM_taper_scheme    = 'ldd97'    
1012    
1013    checkpoint46n_post
1014    Merging from release1_p8:
1015    o verification/natl_box:
1016      updating new external_fields_load routine
1017    o New package: pkg/seaice
1018      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1019      The sea-ice code is based on Hibler (1979-1980).
1020      Two sea-ice dynamic solvers, ADI and LSR, are included.
1021      In addition to computing prognostic sea-ice variables and diagnosing
1022      the forcing/external data fields that drive the ocean model,
1023      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1024      The implied surface heat flux is then stored in variable
1025      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1026      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1027      non-local transport term.  Because this call precedes model
1028      thermodynamics, temperature under sea-ice may not be "exactly" at
1029      the freezing point by the time theta is dumped or time-averaged.
1030      N.B.: fairly large differences in accuracy occur across
1031            different platforms/compilers; comparison between
1032            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1033            generated output gives:
1034       T           S           U           V
1035      C D M    c        m  s        m  s        m  s        m  s
1036      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1037      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1038      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1039    
1040      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1041    o GAD:
1042      - generated new common blocks to account for call of
1043        same gad routines with differing traceridentities
1044        (needed to modify tracerIdentity indices in GAD.h)
1045      - generated separate common blocks for case useCubedSphereExchange
1046        (Department of Futurology)
1047      - parameter lists to gmredi_?transport: added tracerIdentity
1048      - added new key indices to tamc.h
1049    o external_fields_load:
1050      - added this routine to TAF list
1051      - needed to make some common blocks global and additional storing
1052        along the same lines as exf package (checkpoint_lev?_directives.h)
1053    o exf:
1054      updated external forcing package
1055      - bug fixes carried over from ecco-branch
1056        (missing OBCS_OPTIONS.h in two routines)
1057      - enable easy to use "no forcing".
1058      - added exf I/O for atmospheric loading
1059      - added exf I/O for runoff data
1060      - transfered scaling between exf <-> MITgcm to exf namelist
1061    o Adding new verification experiment global_with_exf.
1062      This verification experiment is almost identical to the
1063      global_ocean.90x40x15 experiment, except that it uses
1064      the exf (and cal) package instead of the
1065      external_fields_load routine (cf README file).
1066    
1067    checkpoint46m_post
1068    o modified testscript to return -- when there are no lines of "%MON" output
1069    o added new flag "quasiHydrostatic" for QH mode
1070      and new routine quasihydrostaticterms()
1071    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1072      New routine: mom_u_coriolis_nh()
1073    o fixed sign of non-hydrostatic metric terms in u and v equations.
1074      Depend on correct sign of gravitySign.
1075    o added work.pc* to .cvsignore in aim directories using ifc
1076    o introduced flag for controllin non-hydrostatic metric terms
1077    o removed gravitySign from PARM04
1078    o switched to g77/ifc from pgf77 in aim experiments
1079    
1080    checkpoint46l_post
1081    o made convective adjustment work with pressure coordinates:
1082     - changed the direction of k-loop in convective_adjustment.F for the
1083       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1084     - adjusted the reference pressure k-index in convective_adjustment.F
1085     - adjusted the convection condition in convect.F (in analogy to
1086       calc_ivdc.F)
1087     - convective_adjustment no longer computes anything on the halos
1088     - removed the warnings about negative salinity from find_rho.F and
1089       find_alpha.F; instead the new routine look_for_neg_salinity, called
1090       at the beginning of find_rho, find_alpha, and find_beta, does a
1091       check of the entire slice, if CPP-option
1092       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1093    checkpoint46l_pre
1094    
1095    checkpoint46k_post
1096    o fixed the verification/global_ocean.90x40x15 experiment:
1097     - new bathymetry (the world according to A., JMC, and M.)
1098     - new initial fields and forcing fields (*.bin files)
1099     - new POLY3.COEFFS (for the next release one should switch to a full
1100       equation of state: JMD95P or MDJWF)
1101     - fixed several errors and redundancies in the data file
1102     - experiment uses looped cells
1103     - added matlab directory with diagnostic scripts for plotting of output
1104    
1105    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1106     - read AIM physics parameters from a file (data.aimphys)
1107     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1108    
1109    checkpoint46j_post
1110    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1111    o move wVel computation at the end of the time step, in S/R integr_continuity
1112    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1113    o update timeave pkg for wVel diagnostic.
1114    checkpoint46j_pre
1115    
1116    checkpoint46i_post
1117    o Clean up AIM package (and keep the results unchanged):
1118      include CPP_OPTION and use IMPLICT NONE in all routines ;
1119      declare all the variables _RL ; use _d 0 for all numerical constants.
1120      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1121    
1122    checkpoint46h_post
1123    o cleaned up the use of rhoNil and rhoConst.
1124      - rhoNil should only appear in the LINEAR equation of state, everywhere
1125        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1126        and the dynamical equations are all divided by rhoConst
1127    o introduced new parameter rhoConstFresh, a reference density of fresh
1128      water, to remove the fresh water flux's dependence on rhoNil. The default
1129      value is 999.8 kg/m^3
1130    o cleanup up external_forcing.F and external_forcing_surf.F
1131      - can now be used by both OCEANIC and OCEANICP
1132    checkpoint46h_pre
1133    
1134     Added code to convert surface volume flux (fresh water) into
1135     a mass flux when using P coordinates in the ocean (OCEANICP).
1136     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1137    
1138    checkpoint46g_post
1139    o Include a new diagnostic variable phiHydLow for the ocean model
1140      - in z-coordinates, it is the bottom pressure anomaly
1141      - in p-coordinates, it is the sea surface elevation
1142      - in both cases, these variable have global drift, reflecting the mass
1143        drift in z-coordinates and the volume drift in p-coordinates
1144      - included time averaging for phiHydLow, be aware of the drift!
1145    o depth-dependent computation of Bo_surf for pressure coordinates
1146      in the ocean (buoyancyRelation='OCEANICP')
1147      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1148        Theta, Salinity, and Pressure in the parameter list. This routine is
1149        presently contained in find_rho.F. This routine does not give the
1150        correct density for 'POLY3', which would be a z-dependent reference
1151        density.
1152    o cleaned up find_rho
1153      - removed obsolete 'eqn' from the parameter list.
1154    o added two new verification experiments: gop and goz
1155      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1156    checkpoint46g_pre
1157    
1158    checkpoint46f_post
1159    o Enable tangent linear (forward mode) gradient checks:
1160      - extended active file handling to g_... files
1161      - added TANGENT_SIMULATION to theSimulationMode
1162      - extended grdchk package accordingly
1163    o added tangent linear setup in verification/carbon/code_ftl
1164    o added adjoint setup in verification/front_relax/code_ad
1165    
1166    checkpoint46e_post
1167    o Added new equation of state -> MDJWF
1168      - EOS of McDougall et al., 2002, JAOT, submitted
1169      - caveat: the equation of state is only valid for a smaller (more
1170        realistic?) range of values than JMD95P/Z and UNESCO
1171      - added masks to the calculation of pressure in store_pressure
1172      - added more check values for density in check_eos (ini_eos.F), some of
1173        the old check values are out of the range of the MDJWF-eos, so don't
1174        expect perfect matches for those
1175    checkpoint46e_pre
1176    
1177    checkpoint46d_post
1178    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1179      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1180      case of pressure coordinates. eosType='JMD95Z' in
1181      combination with buoyancyRelation='OCEANICP' now causes an error.
1182    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1183      in find_alpha/beta.
1184    checkpoint46d_pre
1185    
1186    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1187      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1188    
1189    checkpoint46c_post
1190    o Changes necessary for ocean in p-coordinates
1191     -  Added new buoyancy relation = 'OCEANICP'
1192     -  Added new parameters = gravitySign (this used to be contained inside
1193        the factor dRdZ which I added when we first switched to R coordinates).
1194     X GM/Redi is not compatible (yet)
1195     X bottom drag and no-slip need to be debugged.
1196    checkpoint46c_pre
1197    
1198    checkpoint46b_post
1199    o Added new equation of state -> JMD95Z and JMD95P
1200      - EOS of Jackett and McDougall, 1995, JAOT
1201      - moved all EOS parameters into EOS.h
1202      - new routines ini_eos.F, store_pressure.F
1203    o Added UNESCO EOS, but not recommended because it requires
1204      in-situ temperature (see JMD95)
1205    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1206      unesco.f to be used with POLY3
1207    checkpoint46b_pre
1208    
1209    checkpoint46a_post
1210    o Added (atmospheric) pressure loading
1211      - new field in FFIELDS.h, etc...
1212      - new cpp flag ATMOSPHERIC_LOADING
1213    o Changed hFacC to _hFacC in calc_phi_hyd.F
1214    o Added SHORTWAVE_HEATING to some files for consistency
1215    checkpoint46a_pre
1216    
1217    checkpoint46
1218    further merges from release1_p5
1219    o new ctrl package
1220      - adopted from ECCO environment to enable optimization
1221      - added Eliassen Palm fluxes to controls
1222    o added Eliassen Palm flux controls to gradient check package
1223    o cost package
1224      - Compatible with new ctrl package
1225      - added Eliassen Palm cost hooks
1226      - modif's of existing cost functions
1227    o Adjoint-related bug fixes in kpp:
1228      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1229      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1230    o autodiff package
1231      - flow directives:
1232        + new for S/R do_the_model_io
1233        + enhanced for S/R checkpoint
1234        + new gmredi.flow
1235      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1236        disable adcommon.h/g_common.h by default.
1237      - fixed problem for adjoint of global_max
1238    o modified verification/carbon/
1239    o New setup for adjoint of global_ocean
1240    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1241    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1242    o incorporated hooks for sponge layer code (external_forcing.F)
1243    
1244    checkpoint45d_post
1245    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1246    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1247      (affects plume_on_slope "cg2d" output)
1248    o add new parameter deltaTfreesurf for free-surface time stepping
1249    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1250    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1251    o change phiMin in exp1 (to agree with documentation)
1252    o add new flags:
1253     - T,S forcing inside/outside Adams-Bashforth
1254     - turn off temp,salt advection and/or forcing
1255     - for each tracer, define internal flag for multiDimAdvection & A-B
1256    o monitor: change definition of KE to check conservation of Energy
1257    
1258    checkpoint45c_post
1259    o Removed f90 comments ("!")
1260    o Modified initialisations to enable exf package for MITgcm
1261      (without invoking ECCO_PACKAGE).
1262    o modifications to gradient check package (Martin Losch)
1263      - enable centered differences
1264      - modified format of standard output
1265    
1266    checkpoint45b_post
1267    o cleaned exchange calls in cg2d
1268    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1269    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1270      to configure barotropic setup (Martin Losch)
1271    o moved some initialisations within bi,bj loop in dynamics
1272      (TAF flow dependency)
1273    o in initialise_varia, moved call packages_init_variables
1274      before convective_adjustment_init
1275      (corresponding adjustment of TAF tape initialisation).
1276    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1277    
1278    checkpoint45a_post
1279    o compute Rho over the whole domain (extend iMin,jMin indices)
1280    o specific exchange for X-slice domain (case Ny=1)
1281    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1282    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1283    
1284    checkpoint44h_post = checkpoint45
1285    o Fix to restore differentiability:
1286      place at which packages_init_variables is called in
1287      initialise_varia is crucial for reverse control flow.
1288    o modifications in GMRedi to enable stable adjoint
1289      (corresponding modif's in thermodynamics, dynamics)
1290    o added missing hook for sponge layer code in external_forcing
1291    o modified test cost functions
1292    o storing in gad_advection (plus removal of write(0,*)!
1293    o missing headers TR1.h added in convective_adjustment routines
1294    o errorMessageUnit set non-equal zero in eeboot
1295      (conflict on some platforms, e.g. IBM SP3)
1296    o modified carbon verif.
1297    
1298    checkpoint44h_pre
1299    o vertical grid option: allow to put the Interface at the middle between
1300      2 cell-centers ; replace delZ in pkg/kpp by drF.
1301    o GM Advective form: Tracers are advected using the residual transport (=
1302      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1303    
1304    checkpoint44g_post
1305    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1306      results) ; ifdef missing in thermodynamics.F
1307    
1308    checkpoint44f_pre,checkpoint44f_post
1309    o added PTRACERS package
1310      This allows an arbitrary number of passive tracers to be integrated
1311      forward simultaneously with the dynamicaly model.
1312      + Implemented so far:
1313        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1314        - I/O and checkpointing
1315        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1316      + Not implemented so far:
1317        - KPP
1318        - OBCS
1319      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1320        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1321        line in data.pkg.
1322      + This package is disabled by default since it increases storage.
1323    
1324    
1325    o testscript: added -cleanup option
1326    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1327                 b) enable to filter 2D fields.
1328    
1329    checkpoint44e_pre,post
1330    o re-wrote convective adjustment to use pre-calculated weights
1331      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1332      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1333      Original calls to convect() still in place.
1334    
1335    chkpt44d_pre,post
1336    o added missing EXCLUDE_MONITOR flags
1337    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1338      (incompatible typ in MIN/MAX expressions caused problems
1339      on IBM SP3)
1340    o in genmake added variable MAKEDEPEND
1341      plus resetting for case SunOS
1342    o added timer_stats.c routine for IBM SP3
1343    o removed variables in dynamics
1344    !!! I forgot to create tag chkpt44d_pre !!!
1345    !!! But chkpt44d_pre = chkpt44c_post    !!!
1346    
1347    o real fresh water flux implemented with non-linear free-surface.
1348    
1349    chkpt44c_pre,post
1350    o few fix (mask in shap_s2, EmPmR in external_field_load,
1351      USE_NATURAL_BCS in solve_for_P);
1352    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1353    
1354    checkpoint44b_pre/_post
1355    o merge of relevant stuff from the ecco-branch:
1356      - genmake: removed $S64 overwrite for case SunOS
1357      - pkg/exf: update and corrections for field swapping and obcs
1358      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1359                  harmonized between ECCO and MITgcm
1360      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1361                      updated checkpointing_lev... lists for obcs
1362      - model/src: minor changes in forward_step, plot_field
1363                   added directive for divided adjoint in the_main_loop
1364      - pkg/mdsio: added mdsio_gl_slice
1365    
1366    o check parameters & config (chkpt44a_pre,post)
1367    o OBC and NonLin_FrSurf.
1368    
1369    checkpoint44
1370    o fix bug in mom_vi_del2uv
1371    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1372    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1373    o update AIM experiments (NCEP input files)
1374    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1375    o added some stuff for AD
1376    
1377    checkpoint43
1378    o added two new advection tests
1379    o added global 4x4 degree ocean test
1380    o added test of H&S94 with free surface on cube
1381    o some final mods for gradient check, adjoint,...
1382    
1383    checkpoint42
1384      Fixed AD-related problems:
1385    o Store directives up-to-date with re-arranged Adams-Bashforth
1386      (mainly thermodynamics.F)
1387    o New store directives for multi-dim. advection schemes
1388      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1389      * new common block and key passkey
1390      (mainly gad_advection.F)
1391    o Modified store directives for split of dynamics/thermodynamics
1392      for the case ALLOW_KPP
1393    o Cleaned argument list for timestep_tracer.F
1394    
1395    checkpoint41
1396    o re-formatted/added comments in prologues of key subroutines
1397      to work with protex
1398    
1399    checkpoint40
1400    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1401    o added FLT (floats) package from Arne along with demo. experiment
1402    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1403      implementation of forward-in-time forcing terms
1404    o more mods for non-linear free-surface including new variable
1405    o modified multi-dim method to work on cube
1406    o bug fix in KPP (from DM)
1407    
1408    checkpoint40pre9
1409    o added DST advection schemes
1410    o fix MPI bug on SGI's
1411    o modifications for non-linear free-surface
1412    o fixed conditionals for fixed flow/passive tracer only mode
1413    o added tension/strain form of stress tensor
1414    o changes to commenting of arguments for TAF/TAMC
1415    o added/updated many matlab scripts
1416    o added multi-dimensional advection method for tracers
1417      
1418    checkpoint40pre8
1419    o new package rw/
1420      Added method for dumping intermediate local arrays:
1421      mdsio_writetile - same as mdsio_writefield except works from inside
1422                        bi,bj loop
1423      mdsio_writelocal - same as mdsio_writetile except works for local
1424                         arrays
1425      write_local_r? - higher-level wrapper for mdsio_writelocal
1426      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1427      Example given at end of mom_vecinv.F that dumps some local arrays.
1428    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1429      control flux-form versus vector invariant code.
1430      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1431      or genmake -DISABLE ...
1432    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1433      (additional storing is now needed for case vecinv;
1434      currently nothing implemented to switch this storing off
1435      in case fluxform is used since no CPP flag available).
1436    
1437    checkpoint40pre7
1438    o bug fix in dynamics.F
1439      calc_viscosity called before k=1,Nr loop.
1440    o added some #ifdef's ALLOW_PASSIVE_TRACER
1441    o cleaned initialisations in ctrl_map_ini
1442      related to TAF
1443    
1444    checkpoint40pre6
1445    o split dynamics into thermodynamics & dynamics
1446    o corresponding split of calc_diffusivity into
1447      calc_diffusivity, calc_viscosity
1448      (kpp_calc_diff, kpp_calc_visc).
1449    o Added diffkr, kapgm to control variables
1450    o bug fix in gmredi_slope_limit for ldd97
1451    
1452    checkpoint40pre5
1453    o proper initialization of Adams-Bashforth time stepping
1454      + uses forward step for very first step of model (iter=0)
1455    o re-generated *all* output since almost all output is modified by this
1456      change (sorry but we've been putting this one off for about 2 years)
1457      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1458        *not* regenerated since they are already out of date and I don't
1459        want to create the impression that they are suddenly working.
1460    o removed KAP stuff for DEC's
1461    o modified/added many .cvsignore files in */code and */input
1462    o added new expt "solid-body.cs-32x32x1"
1463      + this uses an alternative form of ini_curvilinear_grid.F which
1464        is not necessarily any better than the current one...
1465    
1466    checkpoint40pre4
1467    o added re-initialisations of utrans,vtrans,rtrans in
1468      calc_common_factors which are crucial for TAF.
1469    o extended iMin,jMin range for calc_common_factors,
1470      calc_diffusivity
1471    o added option ALLOW_PASSIVE_TRACER
1472    o a few minor updates and fixes
1473    
1474    checkpoint40pre3
1475    o created calc_gtr1.F for gad package
1476    o split the_main_loop and re-introduced forward_step
1477    o some recomputations of nIter0 for TAMC
1478    
1479  checkpoint40pre2  checkpoint40pre2
1480  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
1481  o Added gradient check package  o Added gradient check package

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