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revision 1.9 by adcroft, Thu Jul 2 14:20:04 1998 UTC revision 1.292 by dimitri, Thu May 13 21:44:59 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o added printMapIncludesZeros to EEPARMS namelist
7    
8    checkpoint53a_post
9    o restore TAMC compatiility for exf_constants.h
10      (no usage of _d in .h)
11    o Additional storing in KPP in an attempt to fix
12      TAMC problem with adjoint of KPP code.
13      (no success...)
14      Identical code works fine with TAF.
15    o Fixed verification/natl_box_adjoint experiments.
16      Initial conditions for Experiments 4 and 5 are now
17      set to "SEAICE_initialHEFF=0", which is more reasonable,
18      and hence gives results closer to that of Experiment 2.
19      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
20    
21    checkpoint53
22    o stable checkpoint with up to date adjoint
23      TLM tests only run for 1st grdchk at the moment. Its unclear if
24      this is a code problem or a problem with resetting code for g_
25      variables that is being autogenerated wrong.
26      Otherwise:
27       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
28       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
29         are both still in chaos following their security messes.
30    
31    checkpoint52n_post
32    o various build (mostly genmake2) changes including:
33      - ability to build/run more easily within Cygwin and MacOS X
34      - more complicated Makefiles with a stronger dependence on Gnu Make
35    o pkg/seaice modifications
36      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
37        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
38        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
39      - changed proxy for geostrophic velocity and updated
40        verification/lab_sea/results/* accordingly
41      - removed ADI dynamic solver from pkg/seaice
42      - replaced all occurrences of 1/CSTICE or 1/CSUICE
43        they caused a segmentation fault under certain circumstances
44      - removed unused field WATR
45    o bug fix in exf-package:
46      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
47         now reflect that.
48    o small fixes in the cal-package:
49      - set reference date to first of January for the 'model'-calendar
50      - failing of cal_CheckDate in cal_FullDate now actually results in a
51        warning
52    o small modifications in exf-package to increase flexibility:
53      - change climtempfreeze from a constant to a runtime parameter that
54        is specified in data.exf_clim (default = -1.9)
55      - introduce runtime parameter windstressmax (default = 2.0) that is
56        specified in data.exf
57    o fix in pkg/thsice:
58      - update Evap (Tsf changes) to be consistent with Latent heat flux
59      - maintain snow precipitation unchanged (even if Tsf >=0).
60     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
61    
62    checkpoint52m_post
63    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
64      this does not change any of the results, because myIter=0 in swfrac always
65      lead to jwtype=2 (the default anyway), but the call makes little sense
66      as a default
67    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
68    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
69      atmospheric model (AIM) to use it ; add a "slab ocean" component.
70    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
71    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
72    o extending useSingleCpuIO option to work with new exch2 I/O format
73      - old-style, missing-tile I/O is still accessible by defining CPP
74        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
75    o monitor package can write to NetCDF files and/or STDOUT
76    o fix re-definition bug in MNC_GRID_INIT_ALL()
77    o doc/api_reference added
78      - a framework for building an API Reference Manual using all
79        the "protex" comments embedded in the code
80      - see pkg/generic_advdiff, pkg/mnc for examples
81    o MNC:
82      - make myThid the last argument for all subroutines
83      - new default for the grid files: NO halos
84      - add useMNC and other run-time flags
85      - separate per-file-group handling of the unlimited dimension
86      - early initialization of MNC w/ flags read at the eeboot stage
87        and lookup tables set in initialize_fixed
88      - write all MNC output to a freshly-created directory
89    o thermodynamics sea-ice (thsice) is now tested with testreport.
90    o test exp. advect_cs: use the standard cs32 grid ; update output.
91    o Added functionality to grdchk:
92      pick global i,j,k position (or nearest wet) where to perform check.
93    
94    checkpoint52l_post
95    o new land formulation:
96      a) use ground enthalpy as prognostic variable to ensure exact
97         energy conservation.
98      b) account for water temperature and for latent heat of freezing
99         in all processes (rain, run-off, ground storage)
100      c) compute surface and ground temperature implicitly.
101    o aim_v23 modification for new land model:
102      a) Treat separately land / ocean / sea-ice surface fluxes
103         to allow implicit computation of land & sea-ice surface temp.
104      b) add snow precipitation.
105    checkpoint52l_pre
106    
107    o fix problem (when 1 tile is empty) in min/max monitor.
108    o fix bug in timeAve (u,vZetatave in common block)
109    o no restoring terms under ice for pkg/seaice
110    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
111    o bug fix for pkg/seaice pickups
112    o change MNC call locations and add coordinate attributes
113    o mask vorticity at the corner ; affects global_ocean.cs output
114    o fix ini_curvilinear_grid ; test CS experiments with mpi
115    o aim.5l_cs: modify sea-ice fraction input file ; update output
116    o exf: Adding simple range check routine for exf fields after read
117    
118    checkpoint52k_post
119    o removed top-level directory "diags"
120      - we migrated these functions to pkg/timeave a long time ago
121    o fixed bug introduced in pkg/monitor
122    o accuracy ctrlprec = 32 insuffient for gradient checks using
123      averaged fields (I/O via cost_averages)
124      -> use ctrl.h in active_file*.F to control I/O precision.
125    o paramter list of CALL ADTHE_MAIN_LOOP
126    o added initial do_the_model_io to ecco
127    o set all ...Freq to zero after cost_final
128      taveFreq, dumpFreq, pChkptFreq
129    o MAIN and ECCO differentiability restored
130    
131    checkpoint52j_post
132    o fix nchklev in tamc.h for global_ocean...
133    o Bringing flow and store directives up-to-date
134    o Really weird thing!
135      call do_the_model_io from the_main_loop with parameters
136      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
137      TAF places a faulty re-call of initialise_varia
138      after cost_final call which should not be there!
139    checkpoint52j_pre
140    
141    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
142      error messages
143    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
144    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
145      debug output
146    o modfied mdsio_writefield.F to handle non-global files under exch2
147    o update AIM Cubed-Sphere exp (aim.5l_cs):
148      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
149    o update AIM Equatorial Channel exp:
150      use standard aim_v23 pkg and change the SST fields to be more realistic.
151    o globalFile now works with exch2
152    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
153      mon_vort3.F to make exch2 friendly with >1 tile per cube face
154    o limit timeave output for hi-res integrations
155    
156    checkpoint52i_post
157    o removed CPP_EEOPTIONS.h from verification/*/code
158    o updated the tiling for global_ocean_pressure
159    checkpoint52i_pre
160    
161    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
162      the old pkg/aim).
163    
164    checkpoint52h_pre
165    o shortened offending lines in exch2_send_rx?.template
166    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
167    o genmake2: add build & execute test for NetCDF code
168    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
169      old grid files, moved CPP_EEMACROS.h to pkg/exch2
170    o added useSingleCPUIO flag to monitor.F and mon_out.F
171    o added temporary hack for sea-ice dynamics on the cube:
172      metric terms are ignored and it is assumed that
173      there is no sea-ice on cube faces 1, 2, 4, and 5.
174    
175    checkpoint52f_post
176    o added exch2 cube routines to pkg/exch2
177    o modified hs94.cs-32x32x5 to use it
178    o added new grid files to hs94.cs-32x32x5
179    checkpoint52f_pre
180    
181    checkpoint52e_post
182    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
183      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
184    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
185      to work with implicit vertical advection and AB ;
186    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
187    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
188     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
189    checkpoint52e_pre
190    
191    o fix bug in impldiff when Nr=1 or Nr=2.
192    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
193    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
194    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
195      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
196    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
197    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
198    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
199    
200    checkpoint52d_post
201    o re-tiled many expts to allow comparison in multi-processor mode
202      - updated output accordingly
203      - changed hs94.128x64x5 to use intial T from file rather than use the
204        random number generator
205    o add infrastructure in model routines for fizhi and gridalt packages
206    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
207    o changes to permit hi-res, cubed-sphere, configuration
208      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
209      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
210      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
211        of surface winds for the cube
212      (A verification experiment, based on global_ocean.cs32x15, but with
213       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
214       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
215       complete with example surface forcing files and matlab scripts to look
216       at the output and compare it with that of global_ocean.cs32x15.)
217    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
218       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
219       to conform to the common rule.
220    o check-in the first version of the coupler + interfaces for multi-components
221       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
222       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
223       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
224       - ocean and atmos. share the same horizontal grid (no interpolation).
225       - exchanges between component and coupler is done in forward_step
226    o new verification experiment, cpl_aim+ocn:
227       coupled ocean - AIM atmosphere on cs32 grid.
228    
229    checkpoint52d_pre
230    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
231    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
232    
233    checkpoint52c_post
234    o Fixing OPTIONS files for use of exf:
235      - ALLOW_ECCO not needed
236      - ECCO_CPPOPTIONS.h should not be included from
237        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
238        as has been the case in the past
239      - All cal/exf related options are currently set in
240        single header file. Should remain so until we
241        agree on a consistent new policy.
242    o Removed all CPP options for cal package.
243      cal has no more CPP options.
244    o modified STOREs in GAD_ADVECTION
245    o corrected key comp. for passkey
246    
247    checkpoint52b_post
248    o new version: "thsice" of thermodynamic sea-ice pkg:
249     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
250     - modify fluxes but do not change theta directly;
251     - light cleaning of bulk_force pkg (still needed with thsice).
252     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
253       + output_thsice.txt to test thsice & bulk_force pkgs.
254    o put back grid & coriolis monitor output.
255    checkpoint52b_pre
256    
257    o call "do_the_model_io" at the beginning (=> dump initial state)
258    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
259    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
260      (need info on NUMBER_OF_PTRACERS)
261    o missing PTRACERS headers in some routines
262    o default tamc.h in pkg/autodiff supposed to crash
263      to ensure proper customization
264    
265    checkpoint52a_post
266    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
267      - moved surfaceTendencyTice from pkg/seaice to main code
268      - subroutine FREEZE_SURFACE now limits only surface temperature
269        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
270        => new output.txt for global_ocean.cs32x15 & global_with_exf
271      - keep the old version of FREEZE for backward compatibility;
272        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
273      - corresponding modifs for TAF directives
274    o added surface flux output variables to TIMEAVE_STATVARS
275    o time-averaged output for pkg/ptracers
276    o fix problem with ECCO-related divided adjoint
277      snapshot file was missing some ad-variables,
278      but no warning issued by TAF
279    
280    checkpoint52a_pre
281    o some bug fixes for #undef REAL4_IS_SLOW
282    
283    checkpoint52 = ecco_c52_e35
284    o after testing adjoints of checkpoint51u_post
285    
286    checkpoint51u_post
287    o this is the post-merge tag of the ecco-branch
288      (needs another clean checkout and re-testing)
289    o various natl_box_adjoint configs and results
290      but no input fields
291    o obcs adjoint not yet merged!
292    o adding ECCO global 1x1 and 2x2 degree configs
293    o updated/extended some store directives for seaice
294    o pkg/ecco now containes ecco-specific part of cost function
295    o top level routines the_main_loop, forward_step
296      supersede those in model/src/
297      previous input data.cost now in data.ecco
298      (new namelist ecco_cost_nml)
299    o in ctrl/ cleaned some cross-dependencies and updated CPP options
300    
301    checkpoint51t_post
302    o this is the pre-merge tag of the ecco-branch
303    
304    checkpoint51s_post
305    o cleanup: removed various obsolete #define-s
306    o pkg/grdchk
307      - renamed 'ph-grd 3' to 'grad-res'
308      - merged from ecco-branch
309        (remaining bug fixes for obcs gradient checks)
310      - additional high-precision output for testreport
311        (grep for 'precision_grdchk_result')
312    
313    checkpoint51r_post
314    o cleaned up or removed CPP_OPTIONS.h files
315    o updated results for some of the tests to reflect the new
316      optfiles (-ieee: -O0 instead of -O3)
317    
318    checkpoint51q_post
319    o cd_code:
320      - moved cd_scheme.F -> cd_code_scheme.F
321      - separate read_checkpoint from cd_code_ini_vars.F
322      - separated cd_code part from write_checkpoint
323      - updated AD_SOURCE, generated .flow
324      - added CD_CODE_VARS.h to the_main_loop
325      - Moving cd_code specific store dir.s to pkg/cd_code
326    o ctrl package totally restructured
327      - pack/unpack now optional and decoupled from
328        xx_/adxx_ I/O
329      - ctrl_pack/unpack cleaned
330        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
331      - confined inclusion of AD_CONFIG.h to where necessary.
332    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
333    
334    checkpoint51p_post
335    o create initial cd_code package
336      - WARNING: the initialization of fields within packages
337        is broken because INI_FIELDS (where READ_CHECKPOINT is
338        called) is called *before* PACKAGES_INIT_VARIABLES.
339        This seems to be backwards since
340        1) its important to initially zero the entire field including
341           the "halo" region
342        2) zeroing needs to be done *before* reading pickup info
343           and the pickup call might or might not happen in any
344           particular run
345      - this needs an overhaul for R2
346    o cleanup verification/*/code/GMREDI_OPTIONS.h
347    o cleanup testreport
348    
349    checkpoint51o_post
350    o bringing AD-related verif's up to date with genmake2
351      - carbon/
352      - global_ocean.90x40x15/
353      - hs.94.1x64x5/
354      - (front_relax/ )
355    o (more) consistent directory structure for AD-related verif.'s
356    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
357    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
358    o bug fix in find_alpha.F for MDJWF:
359      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
360        change rho -> rho-rhoConst
361      - replace call find_rho to find_rhonum
362    o initialisation of rFlx extended to full array (required by TAF)
363      and shifted to thermodynamics
364    o removed PTRACERS.h in ptracers routine
365    o added surfacetendencyPtr to S/R parameter list pracers_forcing
366    o Correcting initialisations for fVerU, fVerV.
367    o helping TAF to recognize dependency on kUp for
368      fVerU, fVerV
369    o Replacing delZ by delR in pkg/ctrl/
370    checkpoint51o_pre
371    
372    o undid all of cp51 pending some cleanups and discussion
373    o added the [#include "AD_CONFIG.h"] statement to all files that need
374       it for adjoint/tl #defines
375     o re-worked the build logic in genmake2 to support AD_CONFIG.h
376     o removed tools/genmake since it no longer works
377    
378    checkpoint51n_post
379    o modifications to make FREEZE flux visible to pkg/kpp
380      - moved surfaceTendencyTice from pkg/seaice to main code
381      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
382      - subroutine FREEZE now limits only surface temperature
383        (this means new output.txt for global_ocean.90x40x15,
384         global_ocean.cs32x15, and global_with_exf)
385    o added surface flux output variables to TIMEAVE_STATVARS
386    
387    checkpoint51n_pre
388    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
389    o added [#include "AD_CONFIG.h"] to all files that use the following
390      defines:
391      - ALLOW_ADJOINT_RUN
392      - ALLOW_TANGENTLINEAR_RUN
393      - ALLOW_ECCO_OPTIMIZATION
394    
395    checkpoint51m_post
396    o incorporating changes to get TAMC/TAF working in genmake2
397      - added new TAMC/TAF targets to the Makefile
398      - various cleanups related to package handling
399      - these changes should have no impact on the forward model
400    
401    checkpoint51l_post
402    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
403     - faster algorithm for cal_addtime.F
404     - higher precision arithmetic, where needed
405     - pkg/exf *startdate variables changed from calendar date to
406       model integration time
407    
408    checkpoint51l_pre
409    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
410    o enable to apply restoring on S & T only in a latitude band.
411    o update output (external_forcing_surf modif. change truncation errors)
412       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
413    
414    checkpoint51k_post
415    o change default to: useNHMTerms=.FALSE.
416     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
417       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
418     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
419        exp1, ideal_2D_oce
420     - change data file of oceanic exp (leave the results unchanged for now)
421       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
422    o set gravitySign automatically according to the vertical coordinate used
423      (and change sign: back to "logical" value: +1 when R increases downward)
424    o added an include barrier to the default CPP_OPTIONS.h and
425      removed the #include "PACKAGES_CONFIG.h" from it
426    o fix a bug in mom_fluxform (from chk51j_post)
427    
428    checkpoint51j_post
429    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
430    o adjusted some flow directives (dynamics, thermodynamics)
431    o added cubed-sphere case to test cost function
432    o heckpoint_lev?_directives.h now include
433      pkg-specific directives, whenever those are enabled.
434    o Moving pkg-specific flow directives to corresponding pkg
435      Moving pkg-specific differentiation list to corresponding pkg
436      Moving pkg-specific checkpoint-lev storing to corresponding pkg
437      ---> conventions are
438           - pkg_ad.flow
439           - pkg_ad_diff.list
440           - pkg_ad_check_lev?_dir.h
441    
442    checkpoint51i_post
443    o merge of the branch-genmake2
444      - knowingly breaks the older genmake
445      - automatic generation of all ALLOW_${PKG_NAME} defines
446      - new testreport supersedes older testscript
447    o large number of package inclusion and header cleanups
448    checkpoint51i_pre
449    
450    o new output for adjoin of global ocean vector invariant
451    o fix for checkpoint of thermodynamic seaice and bulk_force
452    o Steph gchem various cleanups
453    
454    checkpoint 51h_pre
455    o fixed some single quotes
456    o modify gchem pkg to be more versatile
457    o modifications to clean up dic pkg
458    o add pkg/cfc
459    
460    checkpoint51g_post
461    o provide links for ARPACK and ADM*TLM
462    o start removing verification/vero/
463    o update AD-related stuff
464      (in particular some IF-statements in model/src/ routines)
465    o adding to verification/global_ocean.90x40x15/ adjoint of
466      vector invariant setup
467    
468    checkpoint51f_post
469    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
470    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
471      of tracer Green's fucntions for ocean inversion project.
472    
473    checkpoint51f_pre
474    o Added on-the-fly spatial interpolation capability
475        "USE_EXF_INTERPOLATION" to pkg/exf.
476      - This is a temporary Cartesian-grid hack until
477        the super-duper ESMF coupler becomes available.
478      - See verification/global_with_exf/README for usage example.
479      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
480        flags and modified pkg/seaice accordingly.
481    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
482        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
483        non-local transport term.
484    
485    checkpoint51e_post
486    o pkg/mom_vecinv:
487      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
488      - add time-ave diagnostic of vorticity advection.
489    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
490    o atmospheric geopotential: - include water vapor effect;
491                                - use p^kappa in p* scaling.
492    o land pkg: read initial state from files.
493    o AIM : add stratospheric drag in the upper level
494    
495    checkpoint51d_post
496    o change function ILNBLNK (=> last non-blank char.) to return zero
497      (instead of the string length) when the string. char is empty
498    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
499    o modif's to restore TAMC compatibility
500      - avoid "_d" constructs in PARAMETER declarations
501      - avoid interrupting lines by comment lines
502    o Use cluster local disks for purely local I/O
503      vs. globally visible disks needed for ctrl stuff
504      (merged from ecco-branch)
505      - new active_file_loc... and mdsio_..._loc routines
506      - affected packages: autodiff, ctrl, grdchk, mdsio
507    
508    checkpoint51c_post
509    o introducing integer flag debugLevel
510      - debLevZero: suppress all output
511      - debLevA: standard
512      - debLevB: equivalent to current debugMode=.TRUE.
513    o introducing pathname variable mdsioLocalDir for mdsio
514      that can be specified at runtime
515      (relevant for cluster I/O to local disk)
516    `
517    >>>checkpoint51b_post
518    adjoint of ptracers
519    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
520    o extended state in checkpoint_lev?, etc.
521    o alternative ctrl/cost with tr1 or ptracer
522    o new comlev1_bibj_ptracers
523    o new ptracers.flow
524    o made ptracers_forcing same as external_forcing_s
525    o added verification for adjoint with ptracers
526      - adm. grdchk fail so far
527      - tlm. grdchk OK
528      - checked tapelev/comlev recomputations: OK
529    <<<checkpoint51b_pre
530    
531    checkpoint51a_post
532    o added code for biogeochemistry package
533      - new pkgs: dic, gchem
534      - new subroutine in ptracers
535    o modify code for biogeo packages
536      - in model/src and pkg/ptracers
537    
538    checkpoint51
539    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
540      - autodiff, ctrl, exf, grdchk, seaice
541      kept separate packages
542      - cost, ecco, obcs
543    o updating verification/internal_wave, verification/lab_sea
544      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
545    
546    checkpoint50i_post
547    o Preparing next differentiable checkpoint and sync
548      of MAIN vs. ecco-branch
549      - 1st step: this one is differentiable
550      - 2nd step: next(! not this) checkpoint will have updated packages
551                  from ecco-branch)
552    
553    checkpoint50h_post
554    o new package "land": provide surface BC for AIM.
555    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
556    o AIM: use true log-P extrapolation for near surface temp (= as in
557        F.Molteni paper) ; update aim.5l_cs output.
558    o New variable in PARM03 for more flexible pickups
559    o somewhat cleaned package initialisation sequence for
560      ctrl/ cost/ ecco/ in packages_... routines
561    
562    checkpoint50g_post
563    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
564      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
565      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
566        made the default because of faster convergence than ADI
567    
568    checkpoint50f_post
569    o exf totally restructured
570      - replaced all exf_set_ routines by one generic exf_set_gen.F
571        and made sure it's still differentiable
572      - split exf_getffields.F into new exf_bulkformulae.F
573      - exf_inscal_/exf_outscal_ suffixes consistent with field names
574      - updated adjoint/makefile and relevant verif. accordingly
575    
576    checkpoint50f_pre
577     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
578          + change Evap over land. (update aim.5l_cs output)
579     o added missing .cvsignores and made uniform across expts
580     o changed configuration of tidal_basin_2d expt
581     o added pkg/debug functions for tracing code in fatal crashes
582     o tidied pkg/monitor to use MONITOR_OPTIONS.h
583     o new fn in pkg/monitor to stop model if solution grows too big
584     o removed lots of single quotes from comments
585    
586    checkpoint50e_post
587    o make KPP work with PTRACERS
588     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
589       nearly a copy of kpp_transport_s
590     - there is no analogue to SurfaceTendencyS, so I have to use
591       gPtr(of the surface layer) instead
592    o add a new platform SunFire+mpi (SunFire 15000) to genmake
593    checkpoint50e_pre
594    
595    checkpoint50d_post
596    o change kpp output from multiple-record state files to single-record state
597      files analogous to write_state.F
598    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
599      analogous to the cg2d-related output.
600    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
601      so that writing to internal file fn (with length 512) fails.
602    checkpoint50d_pre
603    
604    checkpoint50c_post
605    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
606    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
607    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
608    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
609    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
610    
611    checkpoint50c_pre
612    Merging from release1_p13:
613    o bug fix for pkg/seaice dynamic solver
614    o Added SEAICE_initialHEFF to pkg/seaice
615    
616    checkpoint50b_post
617    o store u*,v* in gU,V instead of in guNm1,gvNm1
618    o in order to put the momForcing out of the Adams-Bashforth:
619      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
620      to timestep.F
621    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
622    o re-generate output for highly sensitive test-exp:
623       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
624    
625    checkpoint50b_pre
626    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
627    o corrected CPP option mismatch in exf_Bulk... functions for case
628      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
629    
630    checkpoint50a_post
631    o Bug fix for merging between c50 and KPP.
632      ikey was passed from thermodynamics to kpp_calc via
633      common block rather than being recomputed in kpp_calc,
634      in contradiction with new key itdkey.
635      New key ikppkey created, and tamc.h headers updated.
636    
637    checkpoint50
638    - 2nd step of merge with ecco-branch:
639      merge changes in ecco-branch back into main trunk
640    - bug fix in find_alpha
641    - more storing in gmredi_calc_tensor.F, kpp_routines.F
642    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
643    - merged some sliced AD support routines
644    
645    checkpoint49
646    merged from ecco-branch:
647    o exf:
648      - Enable initialisation of forcing fields to constant
649        (runtime) values.
650      - in exf_getffields.F
651        Reduce i-/j-loop to interior domain, discarding overlaps.
652        That also fixes wrong TAF-key computations for key_1, key_2
653        with bulf formulae.
654      - exf_init.F modify #ifdef for exf_init_evap
655      - exf_getffieldrec.F, ctrl_getrec.F
656        The following INT-usages are not safe:
657          fldsecs  = int(fldsecs/fldperiod)*fldperiod
658          fldcount = int(fldsecs/fldperiod) + 1
659        and were modified.
660    o autodiff: checkpoint_lev...
661      - updated storing for bulk formulae (some arrays were missing)
662      - added state for seaice package
663      - synchronized with main branch
664    o DIVA:
665      Modif.s in
666      - the_main_loop.F
667      - the_model_main.F
668      and added cost_final_restore.F cost_final_store.F
669      o With these changes, it is possible to fully separate
670        the first forward run to compute the cost function (mdthe_main_loop)
671        and adjoint runs over individual DIVA intervals (adthe_main_loop)
672        into separate model executions.
673        This enables better tuning of DIVA to given queue sizes.
674      o Loss of cost function value in consecutive DIVA runs is
675        fixed by storing to 'costfinal' file.
676      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
677        beginning/end of adjoint integration is accounted for.
678      The current changes apply to TAF-1.4.26.
679      TAF has one remaining bug, requiring one manual change
680      (see MITgcm manual).
681    o cal: synchronized between MAIN and ecco-branch
682    
683    checkpoint48i_post
684    o Changes to restore differentiability of code w.r.t. previous tag
685      (mostly adding new routines to make list and replacing
686      pressure by totPhiHyd).
687    o Updated and merged grdchk package
688      - has both ADM and TLM checks
689      - works for single- and multi-proc.
690      - output cleaned
691      - worked successfully for parallel DIVA
692    o genmake:
693      - Adding -platform=SP4
694      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
695    o Modif. for DIVA:
696      ctrl_unpack should not be called in intermediate DIVA interval.
697      (similar thing would apply for active files such as
698      tbar, sbar, psbar, which should not be reinitialised;
699      only relevant for ecco-branch)
700    
701    checkpoint48h_post
702    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
703    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
704    o Added SEAICE_initialHEFF to pkg/seaice
705    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
706    
707    checkpoint48g_post
708    --- EOS:
709    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
710      store total Potential in totPhyHyd for diagnostics & EOS.
711    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
712    --- Pressure/geopotential gradient:
713    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
714    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
715      ( changes results of global_ocean_pressure )
716    o NLFS + z-coord.: add eta*Rho' contribution.
717    o accurate phiHyd when using interface-W at the middle between 2 centers
718     ( changes results of ideal_2D_oce )
719    o includes r* 2nd term in potential gradient.
720    
721    checkpoint48f_post
722    Merging from release1_p12:
723    o Modifications for using pkg/exf with pkg/seaice
724      - improved description of the various forcing configurations
725      - added basic radiation bulk formulae to pkg/exf
726      - units/sign fix for evap computation in exf_getffields.F
727      - updated verification/global_with_exf/results/output.txt
728    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
729      (SBO) core products, including oceanic mass, center-of-mass,
730      angular, and bottom pressure (see pkg/sbo/README.sbo).
731    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
732      to avoid negative values in shallow regions.
733      - updated verification/natl_box/results/output.txt
734      - updated verification/lab_sea/results/output.txt
735    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
736    o Added useSingleCpuIO option (see PARAMS.h).
737    o Updated useSingleCpuIO option in mdsio_writefield.F to
738      work with multi-field files, e.g., for single-file pickup.
739    o pkg/seaice:
740      - bug fix in growth.F: QNET for no shortwave case
741      - added HeffFile for specifying initial sea-ice thickness
742      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
743    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
744      kpp_transport_t.F, forward_step.F, and the_main_loop.F
745    o pkg/seaice:
746      - adjoint-friendly modifications
747      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
748    
749    checkpoint48e_post
750    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
751    o dynamics: change definition of computational domain & adapt mom_fluxform
752      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
753    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
754        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
755        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
756        global_ocean.90x40x15 global_with_exf global_ocean_pressure
757        inverted_barometer solid-body.cs-32x32x1
758      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
759    
760    checkpoint48d_post
761    o in preparation for r*:
762     a) use pre-computed gradient of hydrostatic potential:
763        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
764     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
765        => affects results of glob_oce_pressure (different truncation error)  
766      update output.txt of ideal_2D_oce & global_ocean_pressure
767    
768    checkpoint48d_pre
769    o in preparation for r*:
770      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
771      pass the 2 comp. of the grad. as arguments to momentum S/R.
772      but for the moment, only used if it does not change the results.
773    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
774    
775    checkpoint48c_post
776    Modifications in treatment of initial flux forcing controls
777    to avoid extra storing of flux fields.
778    
779    checkpoint48c_pre
780    o Added tidal_basin_2d experiment (currently 1D!)
781    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
782    
783    checkpoint48b_post
784    o r* coordinate added in #ifdef NONLIN_FRSURF block.
785     (modification to pressure gradient not yet implemented)
786    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
787      (for U & V) that are used for vertical advection of momentum.
788    
789    checkpoint48a_post
790    o In preparation for r*, use temp. array to compute vertical transport
791       in flux-form momentum pkg. => change results of few test-exp.
792      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
793                        lab_sea, natl_box & plume_on_slope
794    
795    checkpoint48
796    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
797    
798    checkpoint47j_post
799    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
800    o moved adexch from forward_step to addummy_in_stepping
801    o added exch in ctrl_map_...
802    o aveFreq.=0. at end of cost_final to avoid overwrite in
803      reverse checkpointing loop
804    o Yet more changes in gmredi:
805      * adgmredi_calc_tensor
806        avoiding all recomputation of gmredi_slope_limit
807      * adgmredi_x/y/rtransport
808        added flag for excessive storing to avoid recomp. of
809        u/v/rtans, dTdx/y/z
810        -> this is not really necessary and very memory-consuming
811      * adgmredi_slope_psi:
812        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
813      * gmredi_slope_limit
814        re-activated full calculation of taperfct for case 'ac02'
815    o updating verification/ adjoints of carbon, global_ocean.90x40x15
816    
817    checkpoint47i_post
818    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
819    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
820      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
821    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
822    o gmredi: fix few bugs.
823    
824    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
825    This will be a good checkpoint to plug into the ecco-branch.
826    o few modif.'s to get latest version adjointed
827      (mainly kick out code in ini_linear_phisurf)
828    o modif's to run adjoint with exactConserv
829    o case GM_BOLUS_ADVEC should be cleaned
830      S/R gmredi_slope_psi should be cleaned
831    o verification/carbon now has exactConserv=.TRUE.
832    
833    checkpoint47g_post
834    o time-average AIM output: becomes independent from statvars time-average
835      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
836    o After TAF bug fix:
837      Tested adjoint of gmredi package.
838      Tests were done with checkpoint47 rather than with latest
839      checkpoint47f_post since the latter is broken for the adjoint
840      verification/carbon/ contains both ADM and TLM gradient checks.
841    Here they are, before they get changed/lost/stolen.
842    Mostly modif.'s to fix numerical sensitivities.
843    Gradient checks OK for
844    - GM_taper_scheme:
845      * clipping
846      * ac02
847      * linear
848      * glw91
849      * dm95
850      * ldd97
851    - GMREDI_OPTIONS:
852      * GM_VISBECK_VARIABLE_K
853      * GM_NON_UNITY_DIAGONAL
854      * GM_EXTRA_DIAGONAL
855      * GM_BOLUS_ADVEC
856    in conjunction with data.gmredi parameters to be checked in
857    in a few minutes under verification/carbon/code/
858    
859    checkpoint47f_post
860    Merging from release1_p10:
861    o modifications for using pkg/exf with pkg/seaice
862      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
863        and SEAICE_EXTERNAL_FLUXES
864      - pkg/exf CPP options EXF_READ_EVAP and
865        EXF_NO_BULK_COMPUTATIONS
866      - usage examples are Experiments 8 and 9 in
867        verification/lab_sea/README
868      - verification/lab_sea default experiment now uses
869        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
870    
871    checkpoint47e_post
872    o created a tag prior to creating a branch
873    
874    checkpoint47d_post
875    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
876      at the bottom boundary had an erroneous half slip boundary condition
877    o added bottom drag and no slip boundary condition capabilities to
878      oceanic pressure coordinates code
879    o added new verification experiment global_ocean_pressure, this experiment is
880      also described in the tutorial section of the manual
881    checkpoint47d_pre
882    
883    checkpoint47c_post
884    o Added a verification experiment for a global cubed-sphere ocean run
885      -  verification/global_ocean.cubed32x32x30
886      -  uses pkg/therm_seaice and pkg/bulk_forcing
887    
888    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
889    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
890      when using P-coordinate; only implemented for atmospheric config.
891    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
892      NOTES: requires option NONLIN_FRSURF to be "#define".
893    o update advect_xz/results/output.txt (left from checkpoint44g_post)
894    
895    checkpoint47b_post
896    Merging from release1_p9:
897    o pkg/seaice
898      - removed GOTO's and added taf directives
899      - double precision constants to reduce the g77 (Linux)
900        to F77 (SGI) differences reported in release1_p8
901    o tools/genmake
902      - added SGI options
903    o verification/testscript
904      - updated to that of checkpoint47a_post
905    o verification/global_ocean.90x40x15/input/eedata
906      - modified for SGI f77 compatibility
907    o verification/lab_sea
908      - added description of sea-ice model
909      - added missing matlab routines
910      - added test of thermodynamics parallelization
911    
912    checkpoint47a_post
913    o new pkg: aim_v23
914     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
915       for now, keep the same surface forcing as before.
916     - Part-Cell implemented into AIM; check that Heat & Water are conserved
917     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
918     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
919    o add diagnostic of surface correction term in monitor output
920    
921    o bulk_force and therm_seaice
922    - Two packages:  bulk_force (Bulk forcing)
923      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
924    - Earlier integration from Stephaine Dutkiewicz
925      and Patrick Heimbach.
926    - Two ifdef statements for compile time,
927       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
928    
929    checkpoint47
930    differentiable version of checkpoint46n_post
931    o bug fix in quasihydrostaticterms
932    o * "clean" adjoint code (in terms of extensive recomputations)
933        can now be obtained for all GMREDI options (i.e. for
934        - GM_VISBECK_VARIABLE_K
935        - GM_NON_UNITY_DIAGONAL
936        - GM_EXTRA_DIAGONAL
937        - GM_BOLUS_ADVEC )
938      * However, wrong gradient check problem remains unsolved.
939      * New CPP options have been introduced for different
940        tapering schemes
941    o external_fields_load now part of differentiation list
942    o pressure needs multiple storing;
943      would be nice to have store_pressure at beginning or
944      end of forward_step, e.g. by having phiHyd global (5-dim.)
945      (NB: pressure is needed for certain cases in find_rho,
946      which is also invoked through convective_adjustment).
947    o recomputations in find_rho for cases
948     'JMD95'/'UNESCO' or 'MDJWF' are OK.
949    o #define ATMOSPHERIC_LOADING should be differentiable
950    o ini_forcing shifted to begining of initialise_varia
951    o Incorporating QNVS line search routines into MITgcm
952      (this is separate code, and therefore not under pkg)
953      lsopt/, optim/
954    o Updated verification/carbon/
955      - #define GM_VISBECK_VARIABLE_K
956      - GM_taper_scheme    = 'ldd97'    
957    
958    checkpoint46n_post
959    Merging from release1_p8:
960    o verification/natl_box:
961      updating new external_fields_load routine
962    o New package: pkg/seaice
963      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
964      The sea-ice code is based on Hibler (1979-1980).
965      Two sea-ice dynamic solvers, ADI and LSR, are included.
966      In addition to computing prognostic sea-ice variables and diagnosing
967      the forcing/external data fields that drive the ocean model,
968      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
969      The implied surface heat flux is then stored in variable
970      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
971      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
972      non-local transport term.  Because this call precedes model
973      thermodynamics, temperature under sea-ice may not be "exactly" at
974      the freezing point by the time theta is dumped or time-averaged.
975      N.B.: fairly large differences in accuracy occur across
976            different platforms/compilers; comparison between
977            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
978            generated output gives:
979       T           S           U           V
980      C D M    c        m  s        m  s        m  s        m  s
981      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
982      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
983      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
984    
985      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
986    o GAD:
987      - generated new common blocks to account for call of
988        same gad routines with differing traceridentities
989        (needed to modify tracerIdentity indices in GAD.h)
990      - generated separate common blocks for case useCubedSphereExchange
991        (Department of Futurology)
992      - parameter lists to gmredi_?transport: added tracerIdentity
993      - added new key indices to tamc.h
994    o external_fields_load:
995      - added this routine to TAF list
996      - needed to make some common blocks global and additional storing
997        along the same lines as exf package (checkpoint_lev?_directives.h)
998    o exf:
999      updated external forcing package
1000      - bug fixes carried over from ecco-branch
1001        (missing OBCS_OPTIONS.h in two routines)
1002      - enable easy to use "no forcing".
1003      - added exf I/O for atmospheric loading
1004      - added exf I/O for runoff data
1005      - transfered scaling between exf <-> MITgcm to exf namelist
1006    o Adding new verification experiment global_with_exf.
1007      This verification experiment is almost identical to the
1008      global_ocean.90x40x15 experiment, except that it uses
1009      the exf (and cal) package instead of the
1010      external_fields_load routine (cf README file).
1011    
1012    checkpoint46m_post
1013    o modified testscript to return -- when there are no lines of "%MON" output
1014    o added new flag "quasiHydrostatic" for QH mode
1015      and new routine quasihydrostaticterms()
1016    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1017      New routine: mom_u_coriolis_nh()
1018    o fixed sign of non-hydrostatic metric terms in u and v equations.
1019      Depend on correct sign of gravitySign.
1020    o added work.pc* to .cvsignore in aim directories using ifc
1021    o introduced flag for controllin non-hydrostatic metric terms
1022    o removed gravitySign from PARM04
1023    o switched to g77/ifc from pgf77 in aim experiments
1024    
1025    checkpoint46l_post
1026    o made convective adjustment work with pressure coordinates:
1027     - changed the direction of k-loop in convective_adjustment.F for the
1028       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
1029     - adjusted the reference pressure k-index in convective_adjustment.F
1030     - adjusted the convection condition in convect.F (in analogy to
1031       calc_ivdc.F)
1032     - convective_adjustment no longer computes anything on the halos
1033     - removed the warnings about negative salinity from find_rho.F and
1034       find_alpha.F; instead the new routine look_for_neg_salinity, called
1035       at the beginning of find_rho, find_alpha, and find_beta, does a
1036       check of the entire slice, if CPP-option
1037       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1038    checkpoint46l_pre
1039    
1040    checkpoint46k_post
1041    o fixed the verification/global_ocean.90x40x15 experiment:
1042     - new bathymetry (the world according to A., JMC, and M.)
1043     - new initial fields and forcing fields (*.bin files)
1044     - new POLY3.COEFFS (for the next release one should switch to a full
1045       equation of state: JMD95P or MDJWF)
1046     - fixed several errors and redundancies in the data file
1047     - experiment uses looped cells
1048     - added matlab directory with diagnostic scripts for plotting of output
1049    
1050    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1051     - read AIM physics parameters from a file (data.aimphys)
1052     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1053    
1054    checkpoint46j_post
1055    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1056    o move wVel computation at the end of the time step, in S/R integr_continuity
1057    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1058    o update timeave pkg for wVel diagnostic.
1059    checkpoint46j_pre
1060    
1061    checkpoint46i_post
1062    o Clean up AIM package (and keep the results unchanged):
1063      include CPP_OPTION and use IMPLICT NONE in all routines ;
1064      declare all the variables _RL ; use _d 0 for all numerical constants.
1065      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1066    
1067    checkpoint46h_post
1068    o cleaned up the use of rhoNil and rhoConst.
1069      - rhoNil should only appear in the LINEAR equation of state, everywhere
1070        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1071        and the dynamical equations are all divided by rhoConst
1072    o introduced new parameter rhoConstFresh, a reference density of fresh
1073      water, to remove the fresh water flux's dependence on rhoNil. The default
1074      value is 999.8 kg/m^3
1075    o cleanup up external_forcing.F and external_forcing_surf.F
1076      - can now be used by both OCEANIC and OCEANICP
1077    checkpoint46h_pre
1078    
1079     Added code to convert surface volume flux (fresh water) into
1080     a mass flux when using P coordinates in the ocean (OCEANICP).
1081     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1082    
1083    checkpoint46g_post
1084    o Include a new diagnostic variable phiHydLow for the ocean model
1085      - in z-coordinates, it is the bottom pressure anomaly
1086      - in p-coordinates, it is the sea surface elevation
1087      - in both cases, these variable have global drift, reflecting the mass
1088        drift in z-coordinates and the volume drift in p-coordinates
1089      - included time averaging for phiHydLow, be aware of the drift!
1090    o depth-dependent computation of Bo_surf for pressure coordinates
1091      in the ocean (buoyancyRelation='OCEANICP')
1092      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1093        Theta, Salinity, and Pressure in the parameter list. This routine is
1094        presently contained in find_rho.F. This routine does not give the
1095        correct density for 'POLY3', which would be a z-dependent reference
1096        density.
1097    o cleaned up find_rho
1098      - removed obsolete 'eqn' from the parameter list.
1099    o added two new verification experiments: gop and goz
1100      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1101    checkpoint46g_pre
1102    
1103    checkpoint46f_post
1104    o Enable tangent linear (forward mode) gradient checks:
1105      - extended active file handling to g_... files
1106      - added TANGENT_SIMULATION to theSimulationMode
1107      - extended grdchk package accordingly
1108    o added tangent linear setup in verification/carbon/code_ftl
1109    o added adjoint setup in verification/front_relax/code_ad
1110    
1111    checkpoint46e_post
1112    o Added new equation of state -> MDJWF
1113      - EOS of McDougall et al., 2002, JAOT, submitted
1114      - caveat: the equation of state is only valid for a smaller (more
1115        realistic?) range of values than JMD95P/Z and UNESCO
1116      - added masks to the calculation of pressure in store_pressure
1117      - added more check values for density in check_eos (ini_eos.F), some of
1118        the old check values are out of the range of the MDJWF-eos, so don't
1119        expect perfect matches for those
1120    checkpoint46e_pre
1121    
1122    checkpoint46d_post
1123    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1124      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1125      case of pressure coordinates. eosType='JMD95Z' in
1126      combination with buoyancyRelation='OCEANICP' now causes an error.
1127    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1128      in find_alpha/beta.
1129    checkpoint46d_pre
1130    
1131    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1132      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1133    
1134    checkpoint46c_post
1135    o Changes necessary for ocean in p-coordinates
1136     -  Added new buoyancy relation = 'OCEANICP'
1137     -  Added new parameters = gravitySign (this used to be contained inside
1138        the factor dRdZ which I added when we first switched to R coordinates).
1139     X GM/Redi is not compatible (yet)
1140     X bottom drag and no-slip need to be debugged.
1141    checkpoint46c_pre
1142    
1143    checkpoint46b_post
1144    o Added new equation of state -> JMD95Z and JMD95P
1145      - EOS of Jackett and McDougall, 1995, JAOT
1146      - moved all EOS parameters into EOS.h
1147      - new routines ini_eos.F, store_pressure.F
1148    o Added UNESCO EOS, but not recommended because it requires
1149      in-situ temperature (see JMD95)
1150    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1151      unesco.f to be used with POLY3
1152    checkpoint46b_pre
1153    
1154    checkpoint46a_post
1155    o Added (atmospheric) pressure loading
1156      - new field in FFIELDS.h, etc...
1157      - new cpp flag ATMOSPHERIC_LOADING
1158    o Changed hFacC to _hFacC in calc_phi_hyd.F
1159    o Added SHORTWAVE_HEATING to some files for consistency
1160    checkpoint46a_pre
1161    
1162    checkpoint46
1163    further merges from release1_p5
1164    o new ctrl package
1165      - adopted from ECCO environment to enable optimization
1166      - added Eliassen Palm fluxes to controls
1167    o added Eliassen Palm flux controls to gradient check package
1168    o cost package
1169      - Compatible with new ctrl package
1170      - added Eliassen Palm cost hooks
1171      - modif's of existing cost functions
1172    o Adjoint-related bug fixes in kpp:
1173      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1174      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1175    o autodiff package
1176      - flow directives:
1177        + new for S/R do_the_model_io
1178        + enhanced for S/R checkpoint
1179        + new gmredi.flow
1180      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1181        disable adcommon.h/g_common.h by default.
1182      - fixed problem for adjoint of global_max
1183    o modified verification/carbon/
1184    o New setup for adjoint of global_ocean
1185    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1186    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1187    o incorporated hooks for sponge layer code (external_forcing.F)
1188    
1189    checkpoint45d_post
1190    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1191    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1192      (affects plume_on_slope "cg2d" output)
1193    o add new parameter deltaTfreesurf for free-surface time stepping
1194    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1195    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1196    o change phiMin in exp1 (to agree with documentation)
1197    o add new flags:
1198     - T,S forcing inside/outside Adams-Bashforth
1199     - turn off temp,salt advection and/or forcing
1200     - for each tracer, define internal flag for multiDimAdvection & A-B
1201    o monitor: change definition of KE to check conservation of Energy
1202    
1203    checkpoint45c_post
1204    o Removed f90 comments ("!")
1205    o Modified initialisations to enable exf package for MITgcm
1206      (without invoking ECCO_PACKAGE).
1207    o modifications to gradient check package (Martin Losch)
1208      - enable centered differences
1209      - modified format of standard output
1210    
1211    checkpoint45b_post
1212    o cleaned exchange calls in cg2d
1213    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1214    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1215      to configure barotropic setup (Martin Losch)
1216    o moved some initialisations within bi,bj loop in dynamics
1217      (TAF flow dependency)
1218    o in initialise_varia, moved call packages_init_variables
1219      before convective_adjustment_init
1220      (corresponding adjustment of TAF tape initialisation).
1221    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1222    
1223    checkpoint45a_post
1224    o compute Rho over the whole domain (extend iMin,jMin indices)
1225    o specific exchange for X-slice domain (case Ny=1)
1226    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1227    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1228    
1229    checkpoint44h_post = checkpoint45
1230    o Fix to restore differentiability:
1231      place at which packages_init_variables is called in
1232      initialise_varia is crucial for reverse control flow.
1233    o modifications in GMRedi to enable stable adjoint
1234      (corresponding modif's in thermodynamics, dynamics)
1235    o added missing hook for sponge layer code in external_forcing
1236    o modified test cost functions
1237    o storing in gad_advection (plus removal of write(0,*)!
1238    o missing headers TR1.h added in convective_adjustment routines
1239    o errorMessageUnit set non-equal zero in eeboot
1240      (conflict on some platforms, e.g. IBM SP3)
1241    o modified carbon verif.
1242    
1243    checkpoint44h_pre
1244    o vertical grid option: allow to put the Interface at the middle between
1245      2 cell-centers ; replace delZ in pkg/kpp by drF.
1246    o GM Advective form: Tracers are advected using the residual transport (=
1247      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1248    
1249    checkpoint44g_post
1250    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1251      results) ; ifdef missing in thermodynamics.F
1252    
1253    checkpoint44f_pre,checkpoint44f_post
1254    o added PTRACERS package
1255      This allows an arbitrary number of passive tracers to be integrated
1256      forward simultaneously with the dynamicaly model.
1257      + Implemented so far:
1258        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1259        - I/O and checkpointing
1260        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1261      + Not implemented so far:
1262        - KPP
1263        - OBCS
1264      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1265        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1266        line in data.pkg.
1267      + This package is disabled by default since it increases storage.
1268    
1269    
1270    o testscript: added -cleanup option
1271    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1272                 b) enable to filter 2D fields.
1273    
1274    checkpoint44e_pre,post
1275    o re-wrote convective adjustment to use pre-calculated weights
1276      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1277      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1278      Original calls to convect() still in place.
1279    
1280    chkpt44d_pre,post
1281    o added missing EXCLUDE_MONITOR flags
1282    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1283      (incompatible typ in MIN/MAX expressions caused problems
1284      on IBM SP3)
1285    o in genmake added variable MAKEDEPEND
1286      plus resetting for case SunOS
1287    o added timer_stats.c routine for IBM SP3
1288    o removed variables in dynamics
1289    !!! I forgot to create tag chkpt44d_pre !!!
1290    !!! But chkpt44d_pre = chkpt44c_post    !!!
1291    
1292    o real fresh water flux implemented with non-linear free-surface.
1293    
1294    chkpt44c_pre,post
1295    o few fix (mask in shap_s2, EmPmR in external_field_load,
1296      USE_NATURAL_BCS in solve_for_P);
1297    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1298    
1299    checkpoint44b_pre/_post
1300    o merge of relevant stuff from the ecco-branch:
1301      - genmake: removed $S64 overwrite for case SunOS
1302      - pkg/exf: update and corrections for field swapping and obcs
1303      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1304                  harmonized between ECCO and MITgcm
1305      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1306                      updated checkpointing_lev... lists for obcs
1307      - model/src: minor changes in forward_step, plot_field
1308                   added directive for divided adjoint in the_main_loop
1309      - pkg/mdsio: added mdsio_gl_slice
1310    
1311    o check parameters & config (chkpt44a_pre,post)
1312    o OBC and NonLin_FrSurf.
1313    
1314    checkpoint44
1315    o fix bug in mom_vi_del2uv
1316    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1317    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1318    o update AIM experiments (NCEP input files)
1319    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1320    o added some stuff for AD
1321    
1322    checkpoint43
1323    o added two new advection tests
1324    o added global 4x4 degree ocean test
1325    o added test of H&S94 with free surface on cube
1326    o some final mods for gradient check, adjoint,...
1327    
1328    checkpoint42
1329      Fixed AD-related problems:
1330    o Store directives up-to-date with re-arranged Adams-Bashforth
1331      (mainly thermodynamics.F)
1332    o New store directives for multi-dim. advection schemes
1333      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1334      * new common block and key passkey
1335      (mainly gad_advection.F)
1336    o Modified store directives for split of dynamics/thermodynamics
1337      for the case ALLOW_KPP
1338    o Cleaned argument list for timestep_tracer.F
1339    
1340    checkpoint41
1341    o re-formatted/added comments in prologues of key subroutines
1342      to work with protex
1343    
1344    checkpoint40
1345    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1346    o added FLT (floats) package from Arne along with demo. experiment
1347    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1348      implementation of forward-in-time forcing terms
1349    o more mods for non-linear free-surface including new variable
1350    o modified multi-dim method to work on cube
1351    o bug fix in KPP (from DM)
1352    
1353    checkpoint40pre9
1354    o added DST advection schemes
1355    o fix MPI bug on SGI's
1356    o modifications for non-linear free-surface
1357    o fixed conditionals for fixed flow/passive tracer only mode
1358    o added tension/strain form of stress tensor
1359    o changes to commenting of arguments for TAF/TAMC
1360    o added/updated many matlab scripts
1361    o added multi-dimensional advection method for tracers
1362      
1363    checkpoint40pre8
1364    o new package rw/
1365      Added method for dumping intermediate local arrays:
1366      mdsio_writetile - same as mdsio_writefield except works from inside
1367                        bi,bj loop
1368      mdsio_writelocal - same as mdsio_writetile except works for local
1369                         arrays
1370      write_local_r? - higher-level wrapper for mdsio_writelocal
1371      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1372      Example given at end of mom_vecinv.F that dumps some local arrays.
1373    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1374      control flux-form versus vector invariant code.
1375      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1376      or genmake -DISABLE ...
1377    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1378      (additional storing is now needed for case vecinv;
1379      currently nothing implemented to switch this storing off
1380      in case fluxform is used since no CPP flag available).
1381    
1382    checkpoint40pre7
1383    o bug fix in dynamics.F
1384      calc_viscosity called before k=1,Nr loop.
1385    o added some #ifdef's ALLOW_PASSIVE_TRACER
1386    o cleaned initialisations in ctrl_map_ini
1387      related to TAF
1388    
1389    checkpoint40pre6
1390    o split dynamics into thermodynamics & dynamics
1391    o corresponding split of calc_diffusivity into
1392      calc_diffusivity, calc_viscosity
1393      (kpp_calc_diff, kpp_calc_visc).
1394    o Added diffkr, kapgm to control variables
1395    o bug fix in gmredi_slope_limit for ldd97
1396    
1397    checkpoint40pre5
1398    o proper initialization of Adams-Bashforth time stepping
1399      + uses forward step for very first step of model (iter=0)
1400    o re-generated *all* output since almost all output is modified by this
1401      change (sorry but we've been putting this one off for about 2 years)
1402      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1403        *not* regenerated since they are already out of date and I don't
1404        want to create the impression that they are suddenly working.
1405    o removed KAP stuff for DEC's
1406    o modified/added many .cvsignore files in */code and */input
1407    o added new expt "solid-body.cs-32x32x1"
1408      + this uses an alternative form of ini_curvilinear_grid.F which
1409        is not necessarily any better than the current one...
1410    
1411    checkpoint40pre4
1412    o added re-initialisations of utrans,vtrans,rtrans in
1413      calc_common_factors which are crucial for TAF.
1414    o extended iMin,jMin range for calc_common_factors,
1415      calc_diffusivity
1416    o added option ALLOW_PASSIVE_TRACER
1417    o a few minor updates and fixes
1418    
1419    checkpoint40pre3
1420    o created calc_gtr1.F for gad package
1421    o split the_main_loop and re-introduced forward_step
1422    o some recomputations of nIter0 for TAMC
1423    
1424    checkpoint40pre2
1425    o Updated to latest branch of AJA, JMC
1426    o Added gradient check package
1427    o Added routines for passive tracer handling
1428    o Added carbon sequestration sensitivity experiment
1429    
1430    checkpoint39
1431     o Modifications and fixes to support TAMC
1432       (mainly missing or wrong directives)
1433     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1434       in addummy_in_stepping
1435     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1436     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1437     o Included following packages:
1438       cal: calendar
1439       exf: external forcing
1440       ecco: essential routines to control use of cal, exf
1441             (NB: this is not the full ECCO environment)
1442     o disabled some packages by default in genmake
1443    
1444    checkpoint38
1445     o see notes_c37_adj.txt
1446     o corrected wrong layer index in external_forcing_t
1447     o replaced the_main_loop/forward_step by the_main_loop
1448     o removed forceoutput from write_state
1449       (replaced criteria for initial/final state)
1450     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1451    
1452    checkpoint37
1453     o mdsio.F routine split and packaged in pkg/mdsio
1454       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1455        used unless genmake -disable=mdsio)
1456     o allow a more precise surface-geopotential gradient for the atmosphere
1457       taking into account the change in space of Alpha (=1/rho) at the surface.
1458     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1459       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1460     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1461       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1462       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1463     o Time-Average diagnostics defined as a pseudo package "timeave".
1464     o pickup files : old pickup (before c35) did not work with new code (c35
1465       and after) unless activating 2 commented lines in initialise-varia.
1466     o Non-Hydrostatic pickup file Pb fixed.
1467     o bug with Rigid-lid version (since c35) fixed.  
1468    
1469    checkpoint36
1470     o implement Crank-Nickelson barotropic time-stepping
1471     o recover Time-Average diagnostics
1472     o fix Pb in checkpoint (PR#19)
1473     o AIM become a standard package ; clean unused CPP_kees
1474    
1475    checkpoint35
1476     o subtantial rewrite of dynamics.f
1477     o allows staggered time-stepping
1478     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1479     o added bottom drag (linear + quadratic)
1480    
1481    checkpoint34
1482     o Modified exchange routines for correct reverse simulation.
1483     o Added verification output to comply with bug fix in impldiff.F
1484       as of c33 (exp2, natl_box).
1485     o Corrected store directives in dynamics.F
1486     o Corrected array boundaries in impldiff.F
1487     o Corrected array dimensions in gmredi.
1488       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1489     o Added routine GLOBAL_SUM_INT to global_sum.F
1490     o Added mdsio_gl.F for ECCO purposes.
1491    
1492    checkpoint33
1493     o Fixed bug in lower BC in impldiff.F
1494     o Fixed confusion about units of forcing arrays in FFIELDS.h
1495       namely Fu,Fv,Qnet,Qsw,EmPmR:
1496       - Removed verification/natl_box/code/external_fields_scale.F
1497         (did not differ from that in model/src)
1498       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1499         (see FFIELDS.h for description)
1500       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1501         kpp_calc.F and kpp_transport_t.F
1502       - Removed model/src/external_fields_scale.F and calls to it
1503       - verification/natl_box uses flux data with "atmospheric" sign so
1504         a special version of external_fields_load.F is used to
1505         change the data as it's read in. This way, the arrays
1506         have the right units and signs at all times tha a user could
1507         possibly use them.
1508     o Corrected genmake to delete a temporary file during configuration
1509    
1510    checkpoint32
1511     o Scaling of forcing fields moved from external_forcing.F to
1512       external_fields_scale.F, called directly after loading fields.
1513     o Surface relaxation terms added to surface tendency fields in
1514       extra subroutine.
1515     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1516       fields.
1517     o Changes in GMRedi to comply with packaging structure.
1518     o Modifications and bug fixes in KPP package.
1519     o Verification experiment for KPP added (verification/nat_box/)
1520    
1521    checkpoint31
1522     o Packages interface brought in line with defined standard
1523       -> new routines packages_...F
1524       -> changes in initialise_fixed.F, initialise_varia.F
1525       -> enables initialisation interface for ECCO package
1526     o Rescaling of external forcing fields immediately after read
1527       (removed from external_forcing.F)
1528       -> new: surface_fields_scale.F
1529       -> affects ini_foorcing.F, external_fields_load.F
1530     o Computation of surface tendencies before tendency updates.
1531       -> new: external_forcing_surf.F
1532     o Change of variable names useGMRedi, useKPP, useECCO
1533     o Further changes in dynamics.F, impldiff.F for TAMC
1534     o Tested for experiments 0, 2, 4.
1535       - not yet tested for GMRedi.
1536       - not yet tested for KPP.
1537    
1538    checkpoint30
1539     o Updates for OBCs
1540     o New experiment for test OBCs (internal_wave)
1541     o New output.txt in verification/exp4/results/
1542     o Updates for KPP: calculation of viscosity corrected, new variables
1543       kpp_dumpFreq and kpp_taveFreq
1544     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1545       and entry for T90 in genmake
1546    
1547    checkpoint29
1548     o packaged KPP and GM/Redi
1549    
1550    checkpoint28
1551     o Corrected initialization of hFacMin for difference vertical coordinates
1552     o Modified calculation of partial cell thickness to more robust algorithm
1553     o config_summary.F: replaced write_1D_... by write_0D_...
1554       read_write.F: added subroutines write_0D_...
1555     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1556       included some initialisations required for TAMC.
1557     o routine calc_isoslopes: modified sqrt computation to make it
1558       differentiable for zero argument.
1559     o routines dynamics, impldiff:
1560       included store directives and tape key computations required for TAMC.
1561     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1562    
1563    checkpoint27
1564     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1565       formulation works properly with variable resolution.
1566     o restructured the calling tree between the_model_main() and dynamics()
1567     o split initialise() into initialise_fixed() and initialise_varia()
1568     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1569       in new routine ini_psurf()
1570    
1571    checkpoint26
1572     o moved some #ifdef in optional routines to encompass everything
1573       except the argument declarations. This was using up some memory.
1574     o fixed macros like _ADT to work with both versions of Linux cpp
1575     o cleaned up some unused and uninitialized variables
1576       (helps when debugging with strict compile options)
1577     o split up CPP_EEOPTIONS.h into options and macros
1578       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1579     o patch for 2 processor JAM mode
1580    
1581    checkpoint25
1582     o updates for OBCs and NH
1583     o dramatically reduced memory usage
1584     o added "JAM" routines for use on Artic network
1585     o parameterization of convection by implicit vertical diffusion
1586     o added a diagnostic of convective index
1587     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1588       (this is was partly for OBCs and NH but also in anticipation of
1589        an explicit free-surface option)
1590     o initial state input files for U and V
1591    
1592    checkpoint24
1593     o Removed some spurious "REAL"s
1594     o Updated KPP to latest version from JPL
1595     o Added a COS(latitude) in horizontal viscosity
1596    
1597    checkpoint23
1598     o Added del^4 diffusion for salt and temperature
1599     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1600    
1601    checkpoint22
1602     o Made many small changes: implicit none, format(i5), etc...
1603     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1604    
1605    checkpoint21
1606     o Introduced new I/O package that supports direct-access records (mdsio.F)
1607     o Split-up mid-level I/O routines
1608     o Updated input data for experiments 0,1,2,4 and 5
1609     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1610    
1611    checkpoint20
1612     o Tidied up open-boundaries some more
1613     o Added non-hydrostatic code
1614     o Fixed some input data
1615     o Modified MPI start-up to work in "coupled" context.
1616    
1617    checkpoint19
1618     o Tidied up directory structure for verification experiments.
1619     o Added new code for open boundaries.
1620     o Corrected advective terms near boundaries.
1621     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1622     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1623     o Split default parameters out of ini_parms.F into set_defaults.F.
1624    
1625    checkpoint18
1626     o Further changes for optional code generation with
1627       CPP - ugh!
1628    
1629    checkpoint17
1630     o Beginning to incorporating modularity
1631       for supporting atmos. and ocean configs.
1632     o Small changes for TAMC complinace
1633     o New ultra simple test case. Barotropic box
1634       configuration "exp0".
1635    
1636    checkpoint16
1637     o Minor changes to exchange routines to support
1638       accumulation in reverse mode. Adjoint of an
1639       assignment is an addition.
1640     o Changes to support compilation by TAMC (LR(1)
1641       syntax) and by g77 under Linux ( 72 character
1642       limit ).
1643    
1644    checkpoint15
1645     Rewrote exchange routines to allow
1646     o General tile <-> tile connectivity.
1647     o TAMC reverse mode flag ( is this really needed? )
1648     o Variable width overlap and exchange region widths.
1649     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1650       shmput/shmget, VIA, SYSV shmem and every other cool
1651       communication method.
1652    
1653    checkpoint14
1654     Consistent isomorphism chages made. These allow dynamical core
1655     to support both pressure and meters as a vertical coordinate.
1656    
1657    checkpoint13
1658     Release which corrects global_max problem and a couple
1659     of KGM time-averaging diagnostic errors. Also contains
1660     a double-gyre experiment setup as well as the baseline
1661     4 degree global template. The double gyre template is
1662     organised to allow it to be applied automatically to
1663     the baseline configuration.
1664    
1665    branch-point-rdot
1666     A few tidy-ups have been made bt the real point of this
1667     check-point (excuse the pun) is to allow a branch to be
1668     made for the purposes of adding the rDot alterations.
1669     I don't want to commit the rDot to the main-trunk until
1670     we've actually tested it...
1671    
1672    checkpoint12
1673     Tidy up and added generic genmake script (formerly
1674     configure script).
1675     Released to testers.
1676    
1677  checkpoint11  checkpoint11
1678   Re-arranged initialise() and introduced ini_vertical_grid()   Re-arranged initialise() and introduced ini_vertical_grid()
1679   and ini_masks_etc().   and ini_masks_etc().

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