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revision 1.60 by jmc, Sun Feb 10 20:07:14 2002 UTC revision 1.303 by mlosch, Tue May 25 07:48:47 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 recoded the lateral boundary conditions for non-hydrostatic w, this time
8      hopefully without new bugs
9      - still to do: biharmonic friction for non-hydrostatic w
10    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
11    o regenerated output for global_ocean_ebm (using -ieee)
12    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
13      of mom_common/
14      - simple re-arrangement of instructions within computing loop
15    checkpoint53d_pre
16    
17    checkpoint53c_post
18    o new version of coupler for AIM+thSIce and Ocean models
19     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
20     - land: change Evaporation of snow
21     - aim with thSIce: fix bug in snow-precip.
22    o changes to calc_gw.F
23     - bug fix for w^2 term near the bottom boundary
24     - (hopefully) improve the lateral slip boundary condtions for use with
25        partial/looped cells
26      - because the bug fix changes two verification experiments anyway (exp5
27        and plume on slope), change the lateral boundary condition from half slip
28        to the value of no_slip_sides
29    o ebm package wasnt quite up to the parallel task. Fixed that.
30    o Adjoint of EBM package + verification
31      * TLM OK
32      * ADM not sufficient accuracy yet (needs further testing)
33    
34    checkpoint53b_post
35    o Commiting new energy balance model to repository
36      * package is pkg/ebm
37      * verif. is verification/global_ocean_ebm
38      * references are in ebm_driver.F
39    C      * X. Wang, P. Stone and J. Marotzke, 1999:
40    C        Global thermohaline circulation. Part I:
41    C        Sensitivity to atmospheric moisture transport.
42    C        J. Climate 12(1), 71-82
43    C      * X. Wang, P. Stone and J. Marotzke, 1999:
44    C        Global thermohaline circulation. Part II:
45    C        Sensitivity with interactive transport.
46    C        J. Climate 12(1), 83-91
47    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
48    C        Destabilization of the thermohaline circulation
49    C        by atmospheric eddy transports.
50    C        J. Climate 7(12), 1870-1882
51    o Will need long integration testing.
52    checkpoint53b_pre
53    
54    o created pkg/mom_common in preparation for variable viscosity code
55    o renamed and split ini_mnc_io
56    o pkg/land: only liquid water can diffuse or run-off
57    o AIM using land: soil wetness availability account for snow
58    o added printMapIncludesZeros to EEPARMS namelist
59    
60    checkpoint53a_post
61    o restore TAMC compatiility for exf_constants.h
62      (no usage of _d in .h)
63    o Additional storing in KPP in an attempt to fix
64      TAMC problem with adjoint of KPP code.
65      (no success...)
66      Identical code works fine with TAF.
67    o Fixed verification/natl_box_adjoint experiments.
68      Initial conditions for Experiments 4 and 5 are now
69      set to "SEAICE_initialHEFF=0", which is more reasonable,
70      and hence gives results closer to that of Experiment 2.
71      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
72    
73    checkpoint53
74    o stable checkpoint with up to date adjoint
75      TLM tests only run for 1st grdchk at the moment. Its unclear if
76      this is a code problem or a problem with resetting code for g_
77      variables that is being autogenerated wrong.
78      Otherwise:
79       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
80       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
81         are both still in chaos following their security messes.
82    
83    checkpoint52n_post
84    o various build (mostly genmake2) changes including:
85      - ability to build/run more easily within Cygwin and MacOS X
86      - more complicated Makefiles with a stronger dependence on Gnu Make
87    o pkg/seaice modifications
88      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
89        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
90        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
91      - changed proxy for geostrophic velocity and updated
92        verification/lab_sea/results/* accordingly
93      - removed ADI dynamic solver from pkg/seaice
94      - replaced all occurrences of 1/CSTICE or 1/CSUICE
95        they caused a segmentation fault under certain circumstances
96      - removed unused field WATR
97    o bug fix in exf-package:
98      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
99         now reflect that.
100    o small fixes in the cal-package:
101      - set reference date to first of January for the 'model'-calendar
102      - failing of cal_CheckDate in cal_FullDate now actually results in a
103        warning
104    o small modifications in exf-package to increase flexibility:
105      - change climtempfreeze from a constant to a runtime parameter that
106        is specified in data.exf_clim (default = -1.9)
107      - introduce runtime parameter windstressmax (default = 2.0) that is
108        specified in data.exf
109    o fix in pkg/thsice:
110      - update Evap (Tsf changes) to be consistent with Latent heat flux
111      - maintain snow precipitation unchanged (even if Tsf >=0).
112     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
113    
114    checkpoint52m_post
115    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
116      this does not change any of the results, because myIter=0 in swfrac always
117      lead to jwtype=2 (the default anyway), but the call makes little sense
118      as a default
119    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
120    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
121      atmospheric model (AIM) to use it ; add a "slab ocean" component.
122    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
123    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
124    o extending useSingleCpuIO option to work with new exch2 I/O format
125      - old-style, missing-tile I/O is still accessible by defining CPP
126        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
127    o monitor package can write to NetCDF files and/or STDOUT
128    o fix re-definition bug in MNC_GRID_INIT_ALL()
129    o doc/api_reference added
130      - a framework for building an API Reference Manual using all
131        the "protex" comments embedded in the code
132      - see pkg/generic_advdiff, pkg/mnc for examples
133    o MNC:
134      - make myThid the last argument for all subroutines
135      - new default for the grid files: NO halos
136      - add useMNC and other run-time flags
137      - separate per-file-group handling of the unlimited dimension
138      - early initialization of MNC w/ flags read at the eeboot stage
139        and lookup tables set in initialize_fixed
140      - write all MNC output to a freshly-created directory
141    o thermodynamics sea-ice (thsice) is now tested with testreport.
142    o test exp. advect_cs: use the standard cs32 grid ; update output.
143    o Added functionality to grdchk:
144      pick global i,j,k position (or nearest wet) where to perform check.
145    
146    checkpoint52l_post
147    o new land formulation:
148      a) use ground enthalpy as prognostic variable to ensure exact
149         energy conservation.
150      b) account for water temperature and for latent heat of freezing
151         in all processes (rain, run-off, ground storage)
152      c) compute surface and ground temperature implicitly.
153    o aim_v23 modification for new land model:
154      a) Treat separately land / ocean / sea-ice surface fluxes
155         to allow implicit computation of land & sea-ice surface temp.
156      b) add snow precipitation.
157    checkpoint52l_pre
158    
159    o fix problem (when 1 tile is empty) in min/max monitor.
160    o fix bug in timeAve (u,vZetatave in common block)
161    o no restoring terms under ice for pkg/seaice
162    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
163    o bug fix for pkg/seaice pickups
164    o change MNC call locations and add coordinate attributes
165    o mask vorticity at the corner ; affects global_ocean.cs output
166    o fix ini_curvilinear_grid ; test CS experiments with mpi
167    o aim.5l_cs: modify sea-ice fraction input file ; update output
168    o exf: Adding simple range check routine for exf fields after read
169    
170    checkpoint52k_post
171    o removed top-level directory "diags"
172      - we migrated these functions to pkg/timeave a long time ago
173    o fixed bug introduced in pkg/monitor
174    o accuracy ctrlprec = 32 insuffient for gradient checks using
175      averaged fields (I/O via cost_averages)
176      -> use ctrl.h in active_file*.F to control I/O precision.
177    o paramter list of CALL ADTHE_MAIN_LOOP
178    o added initial do_the_model_io to ecco
179    o set all ...Freq to zero after cost_final
180      taveFreq, dumpFreq, pChkptFreq
181    o MAIN and ECCO differentiability restored
182    
183    checkpoint52j_post
184    o fix nchklev in tamc.h for global_ocean...
185    o Bringing flow and store directives up-to-date
186    o Really weird thing!
187      call do_the_model_io from the_main_loop with parameters
188      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
189      TAF places a faulty re-call of initialise_varia
190      after cost_final call which should not be there!
191    checkpoint52j_pre
192    
193    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
194      error messages
195    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
196    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
197      debug output
198    o modfied mdsio_writefield.F to handle non-global files under exch2
199    o update AIM Cubed-Sphere exp (aim.5l_cs):
200      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
201    o update AIM Equatorial Channel exp:
202      use standard aim_v23 pkg and change the SST fields to be more realistic.
203    o globalFile now works with exch2
204    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
205      mon_vort3.F to make exch2 friendly with >1 tile per cube face
206    o limit timeave output for hi-res integrations
207    
208    checkpoint52i_post
209    o removed CPP_EEOPTIONS.h from verification/*/code
210    o updated the tiling for global_ocean_pressure
211    checkpoint52i_pre
212    
213    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
214      the old pkg/aim).
215    
216    checkpoint52h_pre
217    o shortened offending lines in exch2_send_rx?.template
218    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
219    o genmake2: add build & execute test for NetCDF code
220    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
221      old grid files, moved CPP_EEMACROS.h to pkg/exch2
222    o added useSingleCPUIO flag to monitor.F and mon_out.F
223    o added temporary hack for sea-ice dynamics on the cube:
224      metric terms are ignored and it is assumed that
225      there is no sea-ice on cube faces 1, 2, 4, and 5.
226    
227    checkpoint52f_post
228    o added exch2 cube routines to pkg/exch2
229    o modified hs94.cs-32x32x5 to use it
230    o added new grid files to hs94.cs-32x32x5
231    checkpoint52f_pre
232    
233    checkpoint52e_post
234    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
235      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
236    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
237      to work with implicit vertical advection and AB ;
238    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
239    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
240     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
241    checkpoint52e_pre
242    
243    o fix bug in impldiff when Nr=1 or Nr=2.
244    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
245    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
246    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
247      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
248    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
249    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
250    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
251    
252    checkpoint52d_post
253    o re-tiled many expts to allow comparison in multi-processor mode
254      - updated output accordingly
255      - changed hs94.128x64x5 to use intial T from file rather than use the
256        random number generator
257    o add infrastructure in model routines for fizhi and gridalt packages
258    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
259    o changes to permit hi-res, cubed-sphere, configuration
260      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
261      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
262      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
263        of surface winds for the cube
264      (A verification experiment, based on global_ocean.cs32x15, but with
265       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
266       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
267       complete with example surface forcing files and matlab scripts to look
268       at the output and compare it with that of global_ocean.cs32x15.)
269    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
270       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
271       to conform to the common rule.
272    o check-in the first version of the coupler + interfaces for multi-components
273       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
274       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
275       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
276       - ocean and atmos. share the same horizontal grid (no interpolation).
277       - exchanges between component and coupler is done in forward_step
278    o new verification experiment, cpl_aim+ocn:
279       coupled ocean - AIM atmosphere on cs32 grid.
280    
281    checkpoint52d_pre
282    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
283    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
284    
285    checkpoint52c_post
286    o Fixing OPTIONS files for use of exf:
287      - ALLOW_ECCO not needed
288      - ECCO_CPPOPTIONS.h should not be included from
289        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
290        as has been the case in the past
291      - All cal/exf related options are currently set in
292        single header file. Should remain so until we
293        agree on a consistent new policy.
294    o Removed all CPP options for cal package.
295      cal has no more CPP options.
296    o modified STOREs in GAD_ADVECTION
297    o corrected key comp. for passkey
298    
299    checkpoint52b_post
300    o new version: "thsice" of thermodynamic sea-ice pkg:
301     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
302     - modify fluxes but do not change theta directly;
303     - light cleaning of bulk_force pkg (still needed with thsice).
304     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
305       + output_thsice.txt to test thsice & bulk_force pkgs.
306    o put back grid & coriolis monitor output.
307    checkpoint52b_pre
308    
309    o call "do_the_model_io" at the beginning (=> dump initial state)
310    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
311    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
312      (need info on NUMBER_OF_PTRACERS)
313    o missing PTRACERS headers in some routines
314    o default tamc.h in pkg/autodiff supposed to crash
315      to ensure proper customization
316    
317    checkpoint52a_post
318    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
319      - moved surfaceTendencyTice from pkg/seaice to main code
320      - subroutine FREEZE_SURFACE now limits only surface temperature
321        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
322        => new output.txt for global_ocean.cs32x15 & global_with_exf
323      - keep the old version of FREEZE for backward compatibility;
324        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
325      - corresponding modifs for TAF directives
326    o added surface flux output variables to TIMEAVE_STATVARS
327    o time-averaged output for pkg/ptracers
328    o fix problem with ECCO-related divided adjoint
329      snapshot file was missing some ad-variables,
330      but no warning issued by TAF
331    
332    checkpoint52a_pre
333    o some bug fixes for #undef REAL4_IS_SLOW
334    
335    checkpoint52 = ecco_c52_e35
336    o after testing adjoints of checkpoint51u_post
337    
338    checkpoint51u_post
339    o this is the post-merge tag of the ecco-branch
340      (needs another clean checkout and re-testing)
341    o various natl_box_adjoint configs and results
342      but no input fields
343    o obcs adjoint not yet merged!
344    o adding ECCO global 1x1 and 2x2 degree configs
345    o updated/extended some store directives for seaice
346    o pkg/ecco now containes ecco-specific part of cost function
347    o top level routines the_main_loop, forward_step
348      supersede those in model/src/
349      previous input data.cost now in data.ecco
350      (new namelist ecco_cost_nml)
351    o in ctrl/ cleaned some cross-dependencies and updated CPP options
352    
353    checkpoint51t_post
354    o this is the pre-merge tag of the ecco-branch
355    
356    checkpoint51s_post
357    o cleanup: removed various obsolete #define-s
358    o pkg/grdchk
359      - renamed 'ph-grd 3' to 'grad-res'
360      - merged from ecco-branch
361        (remaining bug fixes for obcs gradient checks)
362      - additional high-precision output for testreport
363        (grep for 'precision_grdchk_result')
364    
365    checkpoint51r_post
366    o cleaned up or removed CPP_OPTIONS.h files
367    o updated results for some of the tests to reflect the new
368      optfiles (-ieee: -O0 instead of -O3)
369    
370    checkpoint51q_post
371    o cd_code:
372      - moved cd_scheme.F -> cd_code_scheme.F
373      - separate read_checkpoint from cd_code_ini_vars.F
374      - separated cd_code part from write_checkpoint
375      - updated AD_SOURCE, generated .flow
376      - added CD_CODE_VARS.h to the_main_loop
377      - Moving cd_code specific store dir.s to pkg/cd_code
378    o ctrl package totally restructured
379      - pack/unpack now optional and decoupled from
380        xx_/adxx_ I/O
381      - ctrl_pack/unpack cleaned
382        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
383      - confined inclusion of AD_CONFIG.h to where necessary.
384    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
385    
386    checkpoint51p_post
387    o create initial cd_code package
388      - WARNING: the initialization of fields within packages
389        is broken because INI_FIELDS (where READ_CHECKPOINT is
390        called) is called *before* PACKAGES_INIT_VARIABLES.
391        This seems to be backwards since
392        1) its important to initially zero the entire field including
393           the "halo" region
394        2) zeroing needs to be done *before* reading pickup info
395           and the pickup call might or might not happen in any
396           particular run
397      - this needs an overhaul for R2
398    o cleanup verification/*/code/GMREDI_OPTIONS.h
399    o cleanup testreport
400    
401    checkpoint51o_post
402    o bringing AD-related verif's up to date with genmake2
403      - carbon/
404      - global_ocean.90x40x15/
405      - hs.94.1x64x5/
406      - (front_relax/ )
407    o (more) consistent directory structure for AD-related verif.'s
408    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
409    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
410    o bug fix in find_alpha.F for MDJWF:
411      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
412        change rho -> rho-rhoConst
413      - replace call find_rho to find_rhonum
414    o initialisation of rFlx extended to full array (required by TAF)
415      and shifted to thermodynamics
416    o removed PTRACERS.h in ptracers routine
417    o added surfacetendencyPtr to S/R parameter list pracers_forcing
418    o Correcting initialisations for fVerU, fVerV.
419    o helping TAF to recognize dependency on kUp for
420      fVerU, fVerV
421    o Replacing delZ by delR in pkg/ctrl/
422    checkpoint51o_pre
423    
424    o undid all of cp51 pending some cleanups and discussion
425    o added the [#include "AD_CONFIG.h"] statement to all files that need
426       it for adjoint/tl #defines
427     o re-worked the build logic in genmake2 to support AD_CONFIG.h
428     o removed tools/genmake since it no longer works
429    
430    checkpoint51n_post
431    o modifications to make FREEZE flux visible to pkg/kpp
432      - moved surfaceTendencyTice from pkg/seaice to main code
433      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
434      - subroutine FREEZE now limits only surface temperature
435        (this means new output.txt for global_ocean.90x40x15,
436         global_ocean.cs32x15, and global_with_exf)
437    o added surface flux output variables to TIMEAVE_STATVARS
438    
439    checkpoint51n_pre
440    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
441    o added [#include "AD_CONFIG.h"] to all files that use the following
442      defines:
443      - ALLOW_ADJOINT_RUN
444      - ALLOW_TANGENTLINEAR_RUN
445      - ALLOW_ECCO_OPTIMIZATION
446    
447    checkpoint51m_post
448    o incorporating changes to get TAMC/TAF working in genmake2
449      - added new TAMC/TAF targets to the Makefile
450      - various cleanups related to package handling
451      - these changes should have no impact on the forward model
452    
453    checkpoint51l_post
454    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
455     - faster algorithm for cal_addtime.F
456     - higher precision arithmetic, where needed
457     - pkg/exf *startdate variables changed from calendar date to
458       model integration time
459    
460    checkpoint51l_pre
461    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
462    o enable to apply restoring on S & T only in a latitude band.
463    o update output (external_forcing_surf modif. change truncation errors)
464       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
465    
466    checkpoint51k_post
467    o change default to: useNHMTerms=.FALSE.
468     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
469       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
470     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
471        exp1, ideal_2D_oce
472     - change data file of oceanic exp (leave the results unchanged for now)
473       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
474    o set gravitySign automatically according to the vertical coordinate used
475      (and change sign: back to "logical" value: +1 when R increases downward)
476    o added an include barrier to the default CPP_OPTIONS.h and
477      removed the #include "PACKAGES_CONFIG.h" from it
478    o fix a bug in mom_fluxform (from chk51j_post)
479    
480    checkpoint51j_post
481    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
482    o adjusted some flow directives (dynamics, thermodynamics)
483    o added cubed-sphere case to test cost function
484    o heckpoint_lev?_directives.h now include
485      pkg-specific directives, whenever those are enabled.
486    o Moving pkg-specific flow directives to corresponding pkg
487      Moving pkg-specific differentiation list to corresponding pkg
488      Moving pkg-specific checkpoint-lev storing to corresponding pkg
489      ---> conventions are
490           - pkg_ad.flow
491           - pkg_ad_diff.list
492           - pkg_ad_check_lev?_dir.h
493    
494    checkpoint51i_post
495    o merge of the branch-genmake2
496      - knowingly breaks the older genmake
497      - automatic generation of all ALLOW_${PKG_NAME} defines
498      - new testreport supersedes older testscript
499    o large number of package inclusion and header cleanups
500    checkpoint51i_pre
501    
502    o new output for adjoin of global ocean vector invariant
503    o fix for checkpoint of thermodynamic seaice and bulk_force
504    o Steph gchem various cleanups
505    
506    checkpoint 51h_pre
507    o fixed some single quotes
508    o modify gchem pkg to be more versatile
509    o modifications to clean up dic pkg
510    o add pkg/cfc
511    
512    checkpoint51g_post
513    o provide links for ARPACK and ADM*TLM
514    o start removing verification/vero/
515    o update AD-related stuff
516      (in particular some IF-statements in model/src/ routines)
517    o adding to verification/global_ocean.90x40x15/ adjoint of
518      vector invariant setup
519    
520    checkpoint51f_post
521    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
522    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
523      of tracer Green's fucntions for ocean inversion project.
524    
525    checkpoint51f_pre
526    o Added on-the-fly spatial interpolation capability
527        "USE_EXF_INTERPOLATION" to pkg/exf.
528      - This is a temporary Cartesian-grid hack until
529        the super-duper ESMF coupler becomes available.
530      - See verification/global_with_exf/README for usage example.
531      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
532        flags and modified pkg/seaice accordingly.
533    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
534        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
535        non-local transport term.
536    
537    checkpoint51e_post
538    o pkg/mom_vecinv:
539      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
540      - add time-ave diagnostic of vorticity advection.
541    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
542    o atmospheric geopotential: - include water vapor effect;
543                                - use p^kappa in p* scaling.
544    o land pkg: read initial state from files.
545    o AIM : add stratospheric drag in the upper level
546    
547    checkpoint51d_post
548    o change function ILNBLNK (=> last non-blank char.) to return zero
549      (instead of the string length) when the string. char is empty
550    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
551    o modif's to restore TAMC compatibility
552      - avoid "_d" constructs in PARAMETER declarations
553      - avoid interrupting lines by comment lines
554    o Use cluster local disks for purely local I/O
555      vs. globally visible disks needed for ctrl stuff
556      (merged from ecco-branch)
557      - new active_file_loc... and mdsio_..._loc routines
558      - affected packages: autodiff, ctrl, grdchk, mdsio
559    
560    checkpoint51c_post
561    o introducing integer flag debugLevel
562      - debLevZero: suppress all output
563      - debLevA: standard
564      - debLevB: equivalent to current debugMode=.TRUE.
565    o introducing pathname variable mdsioLocalDir for mdsio
566      that can be specified at runtime
567      (relevant for cluster I/O to local disk)
568    `
569    >>>checkpoint51b_post
570    adjoint of ptracers
571    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
572    o extended state in checkpoint_lev?, etc.
573    o alternative ctrl/cost with tr1 or ptracer
574    o new comlev1_bibj_ptracers
575    o new ptracers.flow
576    o made ptracers_forcing same as external_forcing_s
577    o added verification for adjoint with ptracers
578      - adm. grdchk fail so far
579      - tlm. grdchk OK
580      - checked tapelev/comlev recomputations: OK
581    <<<checkpoint51b_pre
582    
583    checkpoint51a_post
584    o added code for biogeochemistry package
585      - new pkgs: dic, gchem
586      - new subroutine in ptracers
587    o modify code for biogeo packages
588      - in model/src and pkg/ptracers
589    
590    checkpoint51
591    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
592      - autodiff, ctrl, exf, grdchk, seaice
593      kept separate packages
594      - cost, ecco, obcs
595    o updating verification/internal_wave, verification/lab_sea
596      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
597    
598    checkpoint50i_post
599    o Preparing next differentiable checkpoint and sync
600      of MAIN vs. ecco-branch
601      - 1st step: this one is differentiable
602      - 2nd step: next(! not this) checkpoint will have updated packages
603                  from ecco-branch)
604    
605    checkpoint50h_post
606    o new package "land": provide surface BC for AIM.
607    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
608    o AIM: use true log-P extrapolation for near surface temp (= as in
609        F.Molteni paper) ; update aim.5l_cs output.
610    o New variable in PARM03 for more flexible pickups
611    o somewhat cleaned package initialisation sequence for
612      ctrl/ cost/ ecco/ in packages_... routines
613    
614    checkpoint50g_post
615    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
616      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
617      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
618        made the default because of faster convergence than ADI
619    
620    checkpoint50f_post
621    o exf totally restructured
622      - replaced all exf_set_ routines by one generic exf_set_gen.F
623        and made sure it's still differentiable
624      - split exf_getffields.F into new exf_bulkformulae.F
625      - exf_inscal_/exf_outscal_ suffixes consistent with field names
626      - updated adjoint/makefile and relevant verif. accordingly
627    
628    checkpoint50f_pre
629     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
630          + change Evap over land. (update aim.5l_cs output)
631     o added missing .cvsignores and made uniform across expts
632     o changed configuration of tidal_basin_2d expt
633     o added pkg/debug functions for tracing code in fatal crashes
634     o tidied pkg/monitor to use MONITOR_OPTIONS.h
635     o new fn in pkg/monitor to stop model if solution grows too big
636     o removed lots of single quotes from comments
637    
638    checkpoint50e_post
639    o make KPP work with PTRACERS
640     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
641       nearly a copy of kpp_transport_s
642     - there is no analogue to SurfaceTendencyS, so I have to use
643       gPtr(of the surface layer) instead
644    o add a new platform SunFire+mpi (SunFire 15000) to genmake
645    checkpoint50e_pre
646    
647    checkpoint50d_post
648    o change kpp output from multiple-record state files to single-record state
649      files analogous to write_state.F
650    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
651      analogous to the cg2d-related output.
652    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
653      so that writing to internal file fn (with length 512) fails.
654    checkpoint50d_pre
655    
656    checkpoint50c_post
657    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
658    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
659    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
660    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
661    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
662    
663    checkpoint50c_pre
664    Merging from release1_p13:
665    o bug fix for pkg/seaice dynamic solver
666    o Added SEAICE_initialHEFF to pkg/seaice
667    
668    checkpoint50b_post
669    o store u*,v* in gU,V instead of in guNm1,gvNm1
670    o in order to put the momForcing out of the Adams-Bashforth:
671      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
672      to timestep.F
673    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
674    o re-generate output for highly sensitive test-exp:
675       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
676    
677    checkpoint50b_pre
678    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
679    o corrected CPP option mismatch in exf_Bulk... functions for case
680      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
681    
682    checkpoint50a_post
683    o Bug fix for merging between c50 and KPP.
684      ikey was passed from thermodynamics to kpp_calc via
685      common block rather than being recomputed in kpp_calc,
686      in contradiction with new key itdkey.
687      New key ikppkey created, and tamc.h headers updated.
688    
689    checkpoint50
690    - 2nd step of merge with ecco-branch:
691      merge changes in ecco-branch back into main trunk
692    - bug fix in find_alpha
693    - more storing in gmredi_calc_tensor.F, kpp_routines.F
694    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
695    - merged some sliced AD support routines
696    
697    checkpoint49
698    merged from ecco-branch:
699    o exf:
700      - Enable initialisation of forcing fields to constant
701        (runtime) values.
702      - in exf_getffields.F
703        Reduce i-/j-loop to interior domain, discarding overlaps.
704        That also fixes wrong TAF-key computations for key_1, key_2
705        with bulf formulae.
706      - exf_init.F modify #ifdef for exf_init_evap
707      - exf_getffieldrec.F, ctrl_getrec.F
708        The following INT-usages are not safe:
709          fldsecs  = int(fldsecs/fldperiod)*fldperiod
710          fldcount = int(fldsecs/fldperiod) + 1
711        and were modified.
712    o autodiff: checkpoint_lev...
713      - updated storing for bulk formulae (some arrays were missing)
714      - added state for seaice package
715      - synchronized with main branch
716    o DIVA:
717      Modif.s in
718      - the_main_loop.F
719      - the_model_main.F
720      and added cost_final_restore.F cost_final_store.F
721      o With these changes, it is possible to fully separate
722        the first forward run to compute the cost function (mdthe_main_loop)
723        and adjoint runs over individual DIVA intervals (adthe_main_loop)
724        into separate model executions.
725        This enables better tuning of DIVA to given queue sizes.
726      o Loss of cost function value in consecutive DIVA runs is
727        fixed by storing to 'costfinal' file.
728      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
729        beginning/end of adjoint integration is accounted for.
730      The current changes apply to TAF-1.4.26.
731      TAF has one remaining bug, requiring one manual change
732      (see MITgcm manual).
733    o cal: synchronized between MAIN and ecco-branch
734    
735    checkpoint48i_post
736    o Changes to restore differentiability of code w.r.t. previous tag
737      (mostly adding new routines to make list and replacing
738      pressure by totPhiHyd).
739    o Updated and merged grdchk package
740      - has both ADM and TLM checks
741      - works for single- and multi-proc.
742      - output cleaned
743      - worked successfully for parallel DIVA
744    o genmake:
745      - Adding -platform=SP4
746      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
747    o Modif. for DIVA:
748      ctrl_unpack should not be called in intermediate DIVA interval.
749      (similar thing would apply for active files such as
750      tbar, sbar, psbar, which should not be reinitialised;
751      only relevant for ecco-branch)
752    
753    checkpoint48h_post
754    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
755    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
756    o Added SEAICE_initialHEFF to pkg/seaice
757    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
758    
759    checkpoint48g_post
760    --- EOS:
761    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
762      store total Potential in totPhyHyd for diagnostics & EOS.
763    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
764    --- Pressure/geopotential gradient:
765    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
766    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
767      ( changes results of global_ocean_pressure )
768    o NLFS + z-coord.: add eta*Rho' contribution.
769    o accurate phiHyd when using interface-W at the middle between 2 centers
770     ( changes results of ideal_2D_oce )
771    o includes r* 2nd term in potential gradient.
772    
773    checkpoint48f_post
774    Merging from release1_p12:
775    o Modifications for using pkg/exf with pkg/seaice
776      - improved description of the various forcing configurations
777      - added basic radiation bulk formulae to pkg/exf
778      - units/sign fix for evap computation in exf_getffields.F
779      - updated verification/global_with_exf/results/output.txt
780    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
781      (SBO) core products, including oceanic mass, center-of-mass,
782      angular, and bottom pressure (see pkg/sbo/README.sbo).
783    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
784      to avoid negative values in shallow regions.
785      - updated verification/natl_box/results/output.txt
786      - updated verification/lab_sea/results/output.txt
787    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
788    o Added useSingleCpuIO option (see PARAMS.h).
789    o Updated useSingleCpuIO option in mdsio_writefield.F to
790      work with multi-field files, e.g., for single-file pickup.
791    o pkg/seaice:
792      - bug fix in growth.F: QNET for no shortwave case
793      - added HeffFile for specifying initial sea-ice thickness
794      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
795    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
796      kpp_transport_t.F, forward_step.F, and the_main_loop.F
797    o pkg/seaice:
798      - adjoint-friendly modifications
799      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
800    
801    checkpoint48e_post
802    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
803    o dynamics: change definition of computational domain & adapt mom_fluxform
804      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
805    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
806        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
807        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
808        global_ocean.90x40x15 global_with_exf global_ocean_pressure
809        inverted_barometer solid-body.cs-32x32x1
810      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
811    
812    checkpoint48d_post
813    o in preparation for r*:
814     a) use pre-computed gradient of hydrostatic potential:
815        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
816     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
817        => affects results of glob_oce_pressure (different truncation error)  
818      update output.txt of ideal_2D_oce & global_ocean_pressure
819    
820    checkpoint48d_pre
821    o in preparation for r*:
822      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
823      pass the 2 comp. of the grad. as arguments to momentum S/R.
824      but for the moment, only used if it does not change the results.
825    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
826    
827    checkpoint48c_post
828    Modifications in treatment of initial flux forcing controls
829    to avoid extra storing of flux fields.
830    
831    checkpoint48c_pre
832    o Added tidal_basin_2d experiment (currently 1D!)
833    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
834    
835    checkpoint48b_post
836    o r* coordinate added in #ifdef NONLIN_FRSURF block.
837     (modification to pressure gradient not yet implemented)
838    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
839      (for U & V) that are used for vertical advection of momentum.
840    
841    checkpoint48a_post
842    o In preparation for r*, use temp. array to compute vertical transport
843       in flux-form momentum pkg. => change results of few test-exp.
844      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
845                        lab_sea, natl_box & plume_on_slope
846    
847    checkpoint48
848    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
849    
850    checkpoint47j_post
851    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
852    o moved adexch from forward_step to addummy_in_stepping
853    o added exch in ctrl_map_...
854    o aveFreq.=0. at end of cost_final to avoid overwrite in
855      reverse checkpointing loop
856    o Yet more changes in gmredi:
857      * adgmredi_calc_tensor
858        avoiding all recomputation of gmredi_slope_limit
859      * adgmredi_x/y/rtransport
860        added flag for excessive storing to avoid recomp. of
861        u/v/rtans, dTdx/y/z
862        -> this is not really necessary and very memory-consuming
863      * adgmredi_slope_psi:
864        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
865      * gmredi_slope_limit
866        re-activated full calculation of taperfct for case 'ac02'
867    o updating verification/ adjoints of carbon, global_ocean.90x40x15
868    
869    checkpoint47i_post
870    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
871    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
872      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
873    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
874    o gmredi: fix few bugs.
875    
876    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
877    This will be a good checkpoint to plug into the ecco-branch.
878    o few modif.'s to get latest version adjointed
879      (mainly kick out code in ini_linear_phisurf)
880    o modif's to run adjoint with exactConserv
881    o case GM_BOLUS_ADVEC should be cleaned
882      S/R gmredi_slope_psi should be cleaned
883    o verification/carbon now has exactConserv=.TRUE.
884    
885    checkpoint47g_post
886    o time-average AIM output: becomes independent from statvars time-average
887      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
888    o After TAF bug fix:
889      Tested adjoint of gmredi package.
890      Tests were done with checkpoint47 rather than with latest
891      checkpoint47f_post since the latter is broken for the adjoint
892      verification/carbon/ contains both ADM and TLM gradient checks.
893    Here they are, before they get changed/lost/stolen.
894    Mostly modif.'s to fix numerical sensitivities.
895    Gradient checks OK for
896    - GM_taper_scheme:
897      * clipping
898      * ac02
899      * linear
900      * glw91
901      * dm95
902      * ldd97
903    - GMREDI_OPTIONS:
904      * GM_VISBECK_VARIABLE_K
905      * GM_NON_UNITY_DIAGONAL
906      * GM_EXTRA_DIAGONAL
907      * GM_BOLUS_ADVEC
908    in conjunction with data.gmredi parameters to be checked in
909    in a few minutes under verification/carbon/code/
910    
911    checkpoint47f_post
912    Merging from release1_p10:
913    o modifications for using pkg/exf with pkg/seaice
914      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
915        and SEAICE_EXTERNAL_FLUXES
916      - pkg/exf CPP options EXF_READ_EVAP and
917        EXF_NO_BULK_COMPUTATIONS
918      - usage examples are Experiments 8 and 9 in
919        verification/lab_sea/README
920      - verification/lab_sea default experiment now uses
921        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
922    
923    checkpoint47e_post
924    o created a tag prior to creating a branch
925    
926    checkpoint47d_post
927    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
928      at the bottom boundary had an erroneous half slip boundary condition
929    o added bottom drag and no slip boundary condition capabilities to
930      oceanic pressure coordinates code
931    o added new verification experiment global_ocean_pressure, this experiment is
932      also described in the tutorial section of the manual
933    checkpoint47d_pre
934    
935    checkpoint47c_post
936    o Added a verification experiment for a global cubed-sphere ocean run
937      -  verification/global_ocean.cubed32x32x30
938      -  uses pkg/therm_seaice and pkg/bulk_forcing
939    
940    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
941    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
942      when using P-coordinate; only implemented for atmospheric config.
943    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
944      NOTES: requires option NONLIN_FRSURF to be "#define".
945    o update advect_xz/results/output.txt (left from checkpoint44g_post)
946    
947    checkpoint47b_post
948    Merging from release1_p9:
949    o pkg/seaice
950      - removed GOTO's and added taf directives
951      - double precision constants to reduce the g77 (Linux)
952        to F77 (SGI) differences reported in release1_p8
953    o tools/genmake
954      - added SGI options
955    o verification/testscript
956      - updated to that of checkpoint47a_post
957    o verification/global_ocean.90x40x15/input/eedata
958      - modified for SGI f77 compatibility
959    o verification/lab_sea
960      - added description of sea-ice model
961      - added missing matlab routines
962      - added test of thermodynamics parallelization
963    
964    checkpoint47a_post
965    o new pkg: aim_v23
966     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
967       for now, keep the same surface forcing as before.
968     - Part-Cell implemented into AIM; check that Heat & Water are conserved
969     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
970     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
971    o add diagnostic of surface correction term in monitor output
972    
973    o bulk_force and therm_seaice
974    - Two packages:  bulk_force (Bulk forcing)
975      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
976    - Earlier integration from Stephaine Dutkiewicz
977      and Patrick Heimbach.
978    - Two ifdef statements for compile time,
979       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
980    
981    checkpoint47
982    differentiable version of checkpoint46n_post
983    o bug fix in quasihydrostaticterms
984    o * "clean" adjoint code (in terms of extensive recomputations)
985        can now be obtained for all GMREDI options (i.e. for
986        - GM_VISBECK_VARIABLE_K
987        - GM_NON_UNITY_DIAGONAL
988        - GM_EXTRA_DIAGONAL
989        - GM_BOLUS_ADVEC )
990      * However, wrong gradient check problem remains unsolved.
991      * New CPP options have been introduced for different
992        tapering schemes
993    o external_fields_load now part of differentiation list
994    o pressure needs multiple storing;
995      would be nice to have store_pressure at beginning or
996      end of forward_step, e.g. by having phiHyd global (5-dim.)
997      (NB: pressure is needed for certain cases in find_rho,
998      which is also invoked through convective_adjustment).
999    o recomputations in find_rho for cases
1000     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1001    o #define ATMOSPHERIC_LOADING should be differentiable
1002    o ini_forcing shifted to begining of initialise_varia
1003    o Incorporating QNVS line search routines into MITgcm
1004      (this is separate code, and therefore not under pkg)
1005      lsopt/, optim/
1006    o Updated verification/carbon/
1007      - #define GM_VISBECK_VARIABLE_K
1008      - GM_taper_scheme    = 'ldd97'    
1009    
1010    checkpoint46n_post
1011    Merging from release1_p8:
1012    o verification/natl_box:
1013      updating new external_fields_load routine
1014    o New package: pkg/seaice
1015      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1016      The sea-ice code is based on Hibler (1979-1980).
1017      Two sea-ice dynamic solvers, ADI and LSR, are included.
1018      In addition to computing prognostic sea-ice variables and diagnosing
1019      the forcing/external data fields that drive the ocean model,
1020      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1021      The implied surface heat flux is then stored in variable
1022      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1023      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1024      non-local transport term.  Because this call precedes model
1025      thermodynamics, temperature under sea-ice may not be "exactly" at
1026      the freezing point by the time theta is dumped or time-averaged.
1027      N.B.: fairly large differences in accuracy occur across
1028            different platforms/compilers; comparison between
1029            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1030            generated output gives:
1031       T           S           U           V
1032      C D M    c        m  s        m  s        m  s        m  s
1033      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1034      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1035      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1036    
1037      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1038    o GAD:
1039      - generated new common blocks to account for call of
1040        same gad routines with differing traceridentities
1041        (needed to modify tracerIdentity indices in GAD.h)
1042      - generated separate common blocks for case useCubedSphereExchange
1043        (Department of Futurology)
1044      - parameter lists to gmredi_?transport: added tracerIdentity
1045      - added new key indices to tamc.h
1046    o external_fields_load:
1047      - added this routine to TAF list
1048      - needed to make some common blocks global and additional storing
1049        along the same lines as exf package (checkpoint_lev?_directives.h)
1050    o exf:
1051      updated external forcing package
1052      - bug fixes carried over from ecco-branch
1053        (missing OBCS_OPTIONS.h in two routines)
1054      - enable easy to use "no forcing".
1055      - added exf I/O for atmospheric loading
1056      - added exf I/O for runoff data
1057      - transfered scaling between exf <-> MITgcm to exf namelist
1058    o Adding new verification experiment global_with_exf.
1059      This verification experiment is almost identical to the
1060      global_ocean.90x40x15 experiment, except that it uses
1061      the exf (and cal) package instead of the
1062      external_fields_load routine (cf README file).
1063    
1064    checkpoint46m_post
1065    o modified testscript to return -- when there are no lines of "%MON" output
1066    o added new flag "quasiHydrostatic" for QH mode
1067      and new routine quasihydrostaticterms()
1068    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1069      New routine: mom_u_coriolis_nh()
1070    o fixed sign of non-hydrostatic metric terms in u and v equations.
1071      Depend on correct sign of gravitySign.
1072    o added work.pc* to .cvsignore in aim directories using ifc
1073    o introduced flag for controllin non-hydrostatic metric terms
1074    o removed gravitySign from PARM04
1075    o switched to g77/ifc from pgf77 in aim experiments
1076    
1077    checkpoint46l_post
1078    o made convective adjustment work with pressure coordinates:
1079     - changed the direction of k-loop in convective_adjustment.F for the
1080       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1081     - adjusted the reference pressure k-index in convective_adjustment.F
1082     - adjusted the convection condition in convect.F (in analogy to
1083       calc_ivdc.F)
1084     - convective_adjustment no longer computes anything on the halos
1085     - removed the warnings about negative salinity from find_rho.F and
1086       find_alpha.F; instead the new routine look_for_neg_salinity, called
1087       at the beginning of find_rho, find_alpha, and find_beta, does a
1088       check of the entire slice, if CPP-option
1089       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1090    checkpoint46l_pre
1091    
1092    checkpoint46k_post
1093    o fixed the verification/global_ocean.90x40x15 experiment:
1094     - new bathymetry (the world according to A., JMC, and M.)
1095     - new initial fields and forcing fields (*.bin files)
1096     - new POLY3.COEFFS (for the next release one should switch to a full
1097       equation of state: JMD95P or MDJWF)
1098     - fixed several errors and redundancies in the data file
1099     - experiment uses looped cells
1100     - added matlab directory with diagnostic scripts for plotting of output
1101    
1102    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1103     - read AIM physics parameters from a file (data.aimphys)
1104     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1105    
1106    checkpoint46j_post
1107    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1108    o move wVel computation at the end of the time step, in S/R integr_continuity
1109    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1110    o update timeave pkg for wVel diagnostic.
1111    checkpoint46j_pre
1112    
1113    checkpoint46i_post
1114    o Clean up AIM package (and keep the results unchanged):
1115      include CPP_OPTION and use IMPLICT NONE in all routines ;
1116      declare all the variables _RL ; use _d 0 for all numerical constants.
1117      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1118    
1119    checkpoint46h_post
1120    o cleaned up the use of rhoNil and rhoConst.
1121      - rhoNil should only appear in the LINEAR equation of state, everywhere
1122        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1123        and the dynamical equations are all divided by rhoConst
1124    o introduced new parameter rhoConstFresh, a reference density of fresh
1125      water, to remove the fresh water flux's dependence on rhoNil. The default
1126      value is 999.8 kg/m^3
1127    o cleanup up external_forcing.F and external_forcing_surf.F
1128      - can now be used by both OCEANIC and OCEANICP
1129    checkpoint46h_pre
1130    
1131     Added code to convert surface volume flux (fresh water) into
1132     a mass flux when using P coordinates in the ocean (OCEANICP).
1133     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1134    
1135    checkpoint46g_post
1136    o Include a new diagnostic variable phiHydLow for the ocean model
1137      - in z-coordinates, it is the bottom pressure anomaly
1138      - in p-coordinates, it is the sea surface elevation
1139      - in both cases, these variable have global drift, reflecting the mass
1140        drift in z-coordinates and the volume drift in p-coordinates
1141      - included time averaging for phiHydLow, be aware of the drift!
1142    o depth-dependent computation of Bo_surf for pressure coordinates
1143      in the ocean (buoyancyRelation='OCEANICP')
1144      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1145        Theta, Salinity, and Pressure in the parameter list. This routine is
1146        presently contained in find_rho.F. This routine does not give the
1147        correct density for 'POLY3', which would be a z-dependent reference
1148        density.
1149    o cleaned up find_rho
1150      - removed obsolete 'eqn' from the parameter list.
1151    o added two new verification experiments: gop and goz
1152      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1153    checkpoint46g_pre
1154    
1155    checkpoint46f_post
1156    o Enable tangent linear (forward mode) gradient checks:
1157      - extended active file handling to g_... files
1158      - added TANGENT_SIMULATION to theSimulationMode
1159      - extended grdchk package accordingly
1160    o added tangent linear setup in verification/carbon/code_ftl
1161    o added adjoint setup in verification/front_relax/code_ad
1162    
1163    checkpoint46e_post
1164    o Added new equation of state -> MDJWF
1165      - EOS of McDougall et al., 2002, JAOT, submitted
1166      - caveat: the equation of state is only valid for a smaller (more
1167        realistic?) range of values than JMD95P/Z and UNESCO
1168      - added masks to the calculation of pressure in store_pressure
1169      - added more check values for density in check_eos (ini_eos.F), some of
1170        the old check values are out of the range of the MDJWF-eos, so don't
1171        expect perfect matches for those
1172    checkpoint46e_pre
1173    
1174    checkpoint46d_post
1175    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1176      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1177      case of pressure coordinates. eosType='JMD95Z' in
1178      combination with buoyancyRelation='OCEANICP' now causes an error.
1179    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1180      in find_alpha/beta.
1181    checkpoint46d_pre
1182    
1183    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1184      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1185    
1186    checkpoint46c_post
1187    o Changes necessary for ocean in p-coordinates
1188     -  Added new buoyancy relation = 'OCEANICP'
1189     -  Added new parameters = gravitySign (this used to be contained inside
1190        the factor dRdZ which I added when we first switched to R coordinates).
1191     X GM/Redi is not compatible (yet)
1192     X bottom drag and no-slip need to be debugged.
1193    checkpoint46c_pre
1194    
1195    checkpoint46b_post
1196    o Added new equation of state -> JMD95Z and JMD95P
1197      - EOS of Jackett and McDougall, 1995, JAOT
1198      - moved all EOS parameters into EOS.h
1199      - new routines ini_eos.F, store_pressure.F
1200    o Added UNESCO EOS, but not recommended because it requires
1201      in-situ temperature (see JMD95)
1202    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1203      unesco.f to be used with POLY3
1204    checkpoint46b_pre
1205    
1206    checkpoint46a_post
1207    o Added (atmospheric) pressure loading
1208      - new field in FFIELDS.h, etc...
1209      - new cpp flag ATMOSPHERIC_LOADING
1210    o Changed hFacC to _hFacC in calc_phi_hyd.F
1211    o Added SHORTWAVE_HEATING to some files for consistency
1212    checkpoint46a_pre
1213    
1214    checkpoint46
1215    further merges from release1_p5
1216    o new ctrl package
1217      - adopted from ECCO environment to enable optimization
1218      - added Eliassen Palm fluxes to controls
1219    o added Eliassen Palm flux controls to gradient check package
1220    o cost package
1221      - Compatible with new ctrl package
1222      - added Eliassen Palm cost hooks
1223      - modif's of existing cost functions
1224    o Adjoint-related bug fixes in kpp:
1225      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1226      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1227    o autodiff package
1228      - flow directives:
1229        + new for S/R do_the_model_io
1230        + enhanced for S/R checkpoint
1231        + new gmredi.flow
1232      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1233        disable adcommon.h/g_common.h by default.
1234      - fixed problem for adjoint of global_max
1235    o modified verification/carbon/
1236    o New setup for adjoint of global_ocean
1237    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1238    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1239    o incorporated hooks for sponge layer code (external_forcing.F)
1240    
1241    checkpoint45d_post
1242    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1243    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1244      (affects plume_on_slope "cg2d" output)
1245    o add new parameter deltaTfreesurf for free-surface time stepping
1246    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1247    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1248    o change phiMin in exp1 (to agree with documentation)
1249    o add new flags:
1250     - T,S forcing inside/outside Adams-Bashforth
1251     - turn off temp,salt advection and/or forcing
1252     - for each tracer, define internal flag for multiDimAdvection & A-B
1253    o monitor: change definition of KE to check conservation of Energy
1254    
1255    checkpoint45c_post
1256    o Removed f90 comments ("!")
1257    o Modified initialisations to enable exf package for MITgcm
1258      (without invoking ECCO_PACKAGE).
1259    o modifications to gradient check package (Martin Losch)
1260      - enable centered differences
1261      - modified format of standard output
1262    
1263    checkpoint45b_post
1264    o cleaned exchange calls in cg2d
1265    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1266    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1267      to configure barotropic setup (Martin Losch)
1268    o moved some initialisations within bi,bj loop in dynamics
1269      (TAF flow dependency)
1270    o in initialise_varia, moved call packages_init_variables
1271      before convective_adjustment_init
1272      (corresponding adjustment of TAF tape initialisation).
1273    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1274    
1275    checkpoint45a_post
1276    o compute Rho over the whole domain (extend iMin,jMin indices)
1277    o specific exchange for X-slice domain (case Ny=1)
1278    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1279    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1280    
1281    checkpoint44h_post = checkpoint45
1282    o Fix to restore differentiability:
1283      place at which packages_init_variables is called in
1284      initialise_varia is crucial for reverse control flow.
1285    o modifications in GMRedi to enable stable adjoint
1286      (corresponding modif's in thermodynamics, dynamics)
1287    o added missing hook for sponge layer code in external_forcing
1288    o modified test cost functions
1289    o storing in gad_advection (plus removal of write(0,*)!
1290    o missing headers TR1.h added in convective_adjustment routines
1291    o errorMessageUnit set non-equal zero in eeboot
1292      (conflict on some platforms, e.g. IBM SP3)
1293    o modified carbon verif.
1294    
1295    checkpoint44h_pre
1296    o vertical grid option: allow to put the Interface at the middle between
1297      2 cell-centers ; replace delZ in pkg/kpp by drF.
1298    o GM Advective form: Tracers are advected using the residual transport (=
1299      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1300    
1301    checkpoint44g_post
1302    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1303      results) ; ifdef missing in thermodynamics.F
1304    
1305    checkpoint44f_pre,checkpoint44f_post
1306    o added PTRACERS package
1307      This allows an arbitrary number of passive tracers to be integrated
1308      forward simultaneously with the dynamicaly model.
1309      + Implemented so far:
1310        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1311        - I/O and checkpointing
1312        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1313      + Not implemented so far:
1314        - KPP
1315        - OBCS
1316      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1317        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1318        line in data.pkg.
1319      + This package is disabled by default since it increases storage.
1320    
1321    
1322    o testscript: added -cleanup option
1323    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1324                 b) enable to filter 2D fields.
1325    
1326    checkpoint44e_pre,post
1327    o re-wrote convective adjustment to use pre-calculated weights
1328      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1329      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1330      Original calls to convect() still in place.
1331    
1332    chkpt44d_pre,post
1333    o added missing EXCLUDE_MONITOR flags
1334    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1335      (incompatible typ in MIN/MAX expressions caused problems
1336      on IBM SP3)
1337    o in genmake added variable MAKEDEPEND
1338      plus resetting for case SunOS
1339    o added timer_stats.c routine for IBM SP3
1340    o removed variables in dynamics
1341    !!! I forgot to create tag chkpt44d_pre !!!
1342    !!! But chkpt44d_pre = chkpt44c_post    !!!
1343    
1344  o real fresh water flux implemented with non-linear free-surface.  o real fresh water flux implemented with non-linear free-surface.
1345    
1346  chkpt44c_pre,post  chkpt44c_pre,post

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