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revision 1.1 by cnh, Tue May 26 14:38:05 1998 UTC revision 1.283 by mlosch, Wed Apr 28 12:01:30 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o replaced all occurrences of 1/CSTICE or 1/CSUICE
7      - they caused a segmentation fault under certain circumstances
8      - removed unused field WATR
9    o bug fix in exf-package:
10      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
11         now reflect that.
12    o small fixes in the cal-package:
13      - set reference date to first of January for the 'model'-calendar
14      - failing of cal_CheckDate in cal_FullDate now actually results in a
15        warning
16    o small modifications in exf-package to increase flexibility:
17      - change climtempfreeze from a constant to a runtime parameter that
18        is specified in data.exf_clim (default = -1.9)
19      - introduce runtime parameter windstressmax (default = 2.0) that is
20        specified in data.exf
21    o fix in pkg/thsice:
22      - update Evap (Tsf changes) to be consistent with Latent heat flux
23      - maintain snow precipitation unchanged (even if Tsf >=0).
24     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
25    
26    checkpoint52m_post
27    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
28      this does not change any of the results, because myIter=0 in swfrac always
29      lead to jwtype=2 (the default anyway), but the call makes little sense
30      as a default
31    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
32    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
33      atmospheric model (AIM) to use it ; add a "slab ocean" component.
34    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
35    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
36    o extending useSingleCpuIO option to work with new exch2 I/O format
37      - old-style, missing-tile I/O is still accessible by defining CPP
38        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
39    o monitor package can write to NetCDF files and/or STDOUT
40    o fix re-definition bug in MNC_GRID_INIT_ALL()
41    o doc/api_reference added
42      - a framework for building an API Reference Manual using all
43        the "protex" comments embedded in the code
44      - see pkg/generic_advdiff, pkg/mnc for examples
45    o MNC:
46      - make myThid the last argument for all subroutines
47      - new default for the grid files: NO halos
48      - add useMNC and other run-time flags
49      - separate per-file-group handling of the unlimited dimension
50      - early initialization of MNC w/ flags read at the eeboot stage
51        and lookup tables set in initialize_fixed
52      - write all MNC output to a freshly-created directory
53    o thermodynamics sea-ice (thsice) is now tested with testreport.
54    o test exp. advect_cs: use the standard cs32 grid ; update output.
55    o Added functionality to grdchk:
56      pick global i,j,k position (or nearest wet) where to perform check.
57    
58    checkpoint52l_post
59    o new land formulation:
60      a) use ground enthalpy as prognostic variable to ensure exact
61         energy conservation.
62      b) account for water temperature and for latent heat of freezing
63         in all processes (rain, run-off, ground storage)
64      c) compute surface and ground temperature implicitly.
65    o aim_v23 modification for new land model:
66      a) Treat separately land / ocean / sea-ice surface fluxes
67         to allow implicit computation of land & sea-ice surface temp.
68      b) add snow precipitation.
69    checkpoint52l_pre
70    
71    o fix problem (when 1 tile is empty) in min/max monitor.
72    o fix bug in timeAve (u,vZetatave in common block)
73    o no restoring terms under ice for pkg/seaice
74    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
75    o bug fix for pkg/seaice pickups
76    o change MNC call locations and add coordinate attributes
77    o mask vorticity at the corner ; affects global_ocean.cs output
78    o fix ini_curvilinear_grid ; test CS experiments with mpi
79    o aim.5l_cs: modify sea-ice fraction input file ; update output
80    o exf: Adding simple range check routine for exf fields after read
81    
82    checkpoint52k_post
83    o removed top-level directory "diags"
84      - we migrated these functions to pkg/timeave a long time ago
85    o fixed bug introduced in pkg/monitor
86    o accuracy ctrlprec = 32 insuffient for gradient checks using
87      averaged fields (I/O via cost_averages)
88      -> use ctrl.h in active_file*.F to control I/O precision.
89    o paramter list of CALL ADTHE_MAIN_LOOP
90    o added initial do_the_model_io to ecco
91    o set all ...Freq to zero after cost_final
92      taveFreq, dumpFreq, pChkptFreq
93    o MAIN and ECCO differentiability restored
94    
95    checkpoint52j_post
96    o fix nchklev in tamc.h for global_ocean...
97    o Bringing flow and store directives up-to-date
98    o Really weird thing!
99      call do_the_model_io from the_main_loop with parameters
100      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
101      TAF places a faulty re-call of initialise_varia
102      after cost_final call which should not be there!
103    checkpoint52j_pre
104    
105    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
106      error messages
107    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
108    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
109      debug output
110    o modfied mdsio_writefield.F to handle non-global files under exch2
111    o update AIM Cubed-Sphere exp (aim.5l_cs):
112      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
113    o update AIM Equatorial Channel exp:
114      use standard aim_v23 pkg and change the SST fields to be more realistic.
115    o globalFile now works with exch2
116    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
117      mon_vort3.F to make exch2 friendly with >1 tile per cube face
118    o limit timeave output for hi-res integrations
119    
120    checkpoint52i_post
121    o removed CPP_EEOPTIONS.h from verification/*/code
122    o updated the tiling for global_ocean_pressure
123    checkpoint52i_pre
124    
125    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
126      the old pkg/aim).
127    
128    checkpoint52h_pre
129    o shortened offending lines in exch2_send_rx?.template
130    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
131    o genmake2: add build & execute test for NetCDF code
132    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
133      old grid files, moved CPP_EEMACROS.h to pkg/exch2
134    o added useSingleCPUIO flag to monitor.F and mon_out.F
135    o added temporary hack for sea-ice dynamics on the cube:
136      metric terms are ignored and it is assumed that
137      there is no sea-ice on cube faces 1, 2, 4, and 5.
138    
139    checkpoint52f_post
140    o added exch2 cube routines to pkg/exch2
141    o modified hs94.cs-32x32x5 to use it
142    o added new grid files to hs94.cs-32x32x5
143    checkpoint52f_pre
144    
145    checkpoint52e_post
146    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
147      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
148    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
149      to work with implicit vertical advection and AB ;
150    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
151    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
152     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
153    checkpoint52e_pre
154    
155    o fix bug in impldiff when Nr=1 or Nr=2.
156    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
157    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
158    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
159      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
160    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
161    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
162    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
163    
164    checkpoint52d_post
165    o re-tiled many expts to allow comparison in multi-processor mode
166      - updated output accordingly
167      - changed hs94.128x64x5 to use intial T from file rather than use the
168        random number generator
169    o add infrastructure in model routines for fizhi and gridalt packages
170    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
171    o changes to permit hi-res, cubed-sphere, configuration
172      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
173      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
174      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
175        of surface winds for the cube
176      (A verification experiment, based on global_ocean.cs32x15, but with
177       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
178       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
179       complete with example surface forcing files and matlab scripts to look
180       at the output and compare it with that of global_ocean.cs32x15.)
181    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
182       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
183       to conform to the common rule.
184    o check-in the first version of the coupler + interfaces for multi-components
185       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
186       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
187       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
188       - ocean and atmos. share the same horizontal grid (no interpolation).
189       - exchanges between component and coupler is done in forward_step
190    o new verification experiment, cpl_aim+ocn:
191       coupled ocean - AIM atmosphere on cs32 grid.
192    
193    checkpoint52d_pre
194    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
195    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
196    
197    checkpoint52c_post
198    o Fixing OPTIONS files for use of exf:
199      - ALLOW_ECCO not needed
200      - ECCO_CPPOPTIONS.h should not be included from
201        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
202        as has been the case in the past
203      - All cal/exf related options are currently set in
204        single header file. Should remain so until we
205        agree on a consistent new policy.
206    o Removed all CPP options for cal package.
207      cal has no more CPP options.
208    o modified STOREs in GAD_ADVECTION
209    o corrected key comp. for passkey
210    
211    checkpoint52b_post
212    o new version: "thsice" of thermodynamic sea-ice pkg:
213     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
214     - modify fluxes but do not change theta directly;
215     - light cleaning of bulk_force pkg (still needed with thsice).
216     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
217       + output_thsice.txt to test thsice & bulk_force pkgs.
218    o put back grid & coriolis monitor output.
219    checkpoint52b_pre
220    
221    o call "do_the_model_io" at the beginning (=> dump initial state)
222    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
223    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
224      (need info on NUMBER_OF_PTRACERS)
225    o missing PTRACERS headers in some routines
226    o default tamc.h in pkg/autodiff supposed to crash
227      to ensure proper customization
228    
229    checkpoint52a_post
230    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
231      - moved surfaceTendencyTice from pkg/seaice to main code
232      - subroutine FREEZE_SURFACE now limits only surface temperature
233        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
234        => new output.txt for global_ocean.cs32x15 & global_with_exf
235      - keep the old version of FREEZE for backward compatibility;
236        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
237      - corresponding modifs for TAF directives
238    o added surface flux output variables to TIMEAVE_STATVARS
239    o time-averaged output for pkg/ptracers
240    o fix problem with ECCO-related divided adjoint
241      snapshot file was missing some ad-variables,
242      but no warning issued by TAF
243    
244    checkpoint52a_pre
245    o some bug fixes for #undef REAL4_IS_SLOW
246    
247    checkpoint52 = ecco_c52_e35
248    o after testing adjoints of checkpoint51u_post
249    
250    checkpoint51u_post
251    o this is the post-merge tag of the ecco-branch
252      (needs another clean checkout and re-testing)
253    o various natl_box_adjoint configs and results
254      but no input fields
255    o obcs adjoint not yet merged!
256    o adding ECCO global 1x1 and 2x2 degree configs
257    o updated/extended some store directives for seaice
258    o pkg/ecco now containes ecco-specific part of cost function
259    o top level routines the_main_loop, forward_step
260      supersede those in model/src/
261      previous input data.cost now in data.ecco
262      (new namelist ecco_cost_nml)
263    o in ctrl/ cleaned some cross-dependencies and updated CPP options
264    
265    checkpoint51t_post
266    o this is the pre-merge tag of the ecco-branch
267    
268    checkpoint51s_post
269    o cleanup: removed various obsolete #define-s
270    o pkg/grdchk
271      - renamed 'ph-grd 3' to 'grad-res'
272      - merged from ecco-branch
273        (remaining bug fixes for obcs gradient checks)
274      - additional high-precision output for testreport
275        (grep for 'precision_grdchk_result')
276    
277    checkpoint51r_post
278    o cleaned up or removed CPP_OPTIONS.h files
279    o updated results for some of the tests to reflect the new
280      optfiles (-ieee: -O0 instead of -O3)
281    
282    checkpoint51q_post
283    o cd_code:
284      - moved cd_scheme.F -> cd_code_scheme.F
285      - separate read_checkpoint from cd_code_ini_vars.F
286      - separated cd_code part from write_checkpoint
287      - updated AD_SOURCE, generated .flow
288      - added CD_CODE_VARS.h to the_main_loop
289      - Moving cd_code specific store dir.s to pkg/cd_code
290    o ctrl package totally restructured
291      - pack/unpack now optional and decoupled from
292        xx_/adxx_ I/O
293      - ctrl_pack/unpack cleaned
294        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
295      - confined inclusion of AD_CONFIG.h to where necessary.
296    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
297    
298    checkpoint51p_post
299    o create initial cd_code package
300      - WARNING: the initialization of fields within packages
301        is broken because INI_FIELDS (where READ_CHECKPOINT is
302        called) is called *before* PACKAGES_INIT_VARIABLES.
303        This seems to be backwards since
304        1) its important to initially zero the entire field including
305           the "halo" region
306        2) zeroing needs to be done *before* reading pickup info
307           and the pickup call might or might not happen in any
308           particular run
309      - this needs an overhaul for R2
310    o cleanup verification/*/code/GMREDI_OPTIONS.h
311    o cleanup testreport
312    
313    checkpoint51o_post
314    o bringing AD-related verif's up to date with genmake2
315      - carbon/
316      - global_ocean.90x40x15/
317      - hs.94.1x64x5/
318      - (front_relax/ )
319    o (more) consistent directory structure for AD-related verif.'s
320    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
321    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
322    o bug fix in find_alpha.F for MDJWF:
323      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
324        change rho -> rho-rhoConst
325      - replace call find_rho to find_rhonum
326    o initialisation of rFlx extended to full array (required by TAF)
327      and shifted to thermodynamics
328    o removed PTRACERS.h in ptracers routine
329    o added surfacetendencyPtr to S/R parameter list pracers_forcing
330    o Correcting initialisations for fVerU, fVerV.
331    o helping TAF to recognize dependency on kUp for
332      fVerU, fVerV
333    o Replacing delZ by delR in pkg/ctrl/
334    checkpoint51o_pre
335    
336    o undid all of cp51 pending some cleanups and discussion
337    o added the [#include "AD_CONFIG.h"] statement to all files that need
338       it for adjoint/tl #defines
339     o re-worked the build logic in genmake2 to support AD_CONFIG.h
340     o removed tools/genmake since it no longer works
341    
342    checkpoint51n_post
343    o modifications to make FREEZE flux visible to pkg/kpp
344      - moved surfaceTendencyTice from pkg/seaice to main code
345      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
346      - subroutine FREEZE now limits only surface temperature
347        (this means new output.txt for global_ocean.90x40x15,
348         global_ocean.cs32x15, and global_with_exf)
349    o added surface flux output variables to TIMEAVE_STATVARS
350    
351    checkpoint51n_pre
352    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
353    o added [#include "AD_CONFIG.h"] to all files that use the following
354      defines:
355      - ALLOW_ADJOINT_RUN
356      - ALLOW_TANGENTLINEAR_RUN
357      - ALLOW_ECCO_OPTIMIZATION
358    
359    checkpoint51m_post
360    o incorporating changes to get TAMC/TAF working in genmake2
361      - added new TAMC/TAF targets to the Makefile
362      - various cleanups related to package handling
363      - these changes should have no impact on the forward model
364    
365    checkpoint51l_post
366    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
367     - faster algorithm for cal_addtime.F
368     - higher precision arithmetic, where needed
369     - pkg/exf *startdate variables changed from calendar date to
370       model integration time
371    
372    checkpoint51l_pre
373    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
374    o enable to apply restoring on S & T only in a latitude band.
375    o update output (external_forcing_surf modif. change truncation errors)
376       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
377    
378    checkpoint51k_post
379    o change default to: useNHMTerms=.FALSE.
380     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
381       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
382     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
383        exp1, ideal_2D_oce
384     - change data file of oceanic exp (leave the results unchanged for now)
385       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
386    o set gravitySign automatically according to the vertical coordinate used
387      (and change sign: back to "logical" value: +1 when R increases downward)
388    o added an include barrier to the default CPP_OPTIONS.h and
389      removed the #include "PACKAGES_CONFIG.h" from it
390    o fix a bug in mom_fluxform (from chk51j_post)
391    
392    checkpoint51j_post
393    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
394    o adjusted some flow directives (dynamics, thermodynamics)
395    o added cubed-sphere case to test cost function
396    o heckpoint_lev?_directives.h now include
397      pkg-specific directives, whenever those are enabled.
398    o Moving pkg-specific flow directives to corresponding pkg
399      Moving pkg-specific differentiation list to corresponding pkg
400      Moving pkg-specific checkpoint-lev storing to corresponding pkg
401      ---> conventions are
402           - pkg_ad.flow
403           - pkg_ad_diff.list
404           - pkg_ad_check_lev?_dir.h
405    
406    checkpoint51i_post
407    o merge of the branch-genmake2
408      - knowingly breaks the older genmake
409      - automatic generation of all ALLOW_${PKG_NAME} defines
410      - new testreport supersedes older testscript
411    o large number of package inclusion and header cleanups
412    checkpoint51i_pre
413    
414    o new output for adjoin of global ocean vector invariant
415    o fix for checkpoint of thermodynamic seaice and bulk_force
416    o Steph gchem various cleanups
417    
418    checkpoint 51h_pre
419    o fixed some single quotes
420    o modify gchem pkg to be more versatile
421    o modifications to clean up dic pkg
422    o add pkg/cfc
423    
424    checkpoint51g_post
425    o provide links for ARPACK and ADM*TLM
426    o start removing verification/vero/
427    o update AD-related stuff
428      (in particular some IF-statements in model/src/ routines)
429    o adding to verification/global_ocean.90x40x15/ adjoint of
430      vector invariant setup
431    
432    checkpoint51f_post
433    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
434    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
435      of tracer Green's fucntions for ocean inversion project.
436    
437    checkpoint51f_pre
438    o Added on-the-fly spatial interpolation capability
439        "USE_EXF_INTERPOLATION" to pkg/exf.
440      - This is a temporary Cartesian-grid hack until
441        the super-duper ESMF coupler becomes available.
442      - See verification/global_with_exf/README for usage example.
443      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
444        flags and modified pkg/seaice accordingly.
445    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
446        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
447        non-local transport term.
448    
449    checkpoint51e_post
450    o pkg/mom_vecinv:
451      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
452      - add time-ave diagnostic of vorticity advection.
453    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
454    o atmospheric geopotential: - include water vapor effect;
455                                - use p^kappa in p* scaling.
456    o land pkg: read initial state from files.
457    o AIM : add stratospheric drag in the upper level
458    
459    checkpoint51d_post
460    o change function ILNBLNK (=> last non-blank char.) to return zero
461      (instead of the string length) when the string. char is empty
462    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
463    o modif's to restore TAMC compatibility
464      - avoid "_d" constructs in PARAMETER declarations
465      - avoid interrupting lines by comment lines
466    o Use cluster local disks for purely local I/O
467      vs. globally visible disks needed for ctrl stuff
468      (merged from ecco-branch)
469      - new active_file_loc... and mdsio_..._loc routines
470      - affected packages: autodiff, ctrl, grdchk, mdsio
471    
472    checkpoint51c_post
473    o introducing integer flag debugLevel
474      - debLevZero: suppress all output
475      - debLevA: standard
476      - debLevB: equivalent to current debugMode=.TRUE.
477    o introducing pathname variable mdsioLocalDir for mdsio
478      that can be specified at runtime
479      (relevant for cluster I/O to local disk)
480    `
481    >>>checkpoint51b_post
482    adjoint of ptracers
483    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
484    o extended state in checkpoint_lev?, etc.
485    o alternative ctrl/cost with tr1 or ptracer
486    o new comlev1_bibj_ptracers
487    o new ptracers.flow
488    o made ptracers_forcing same as external_forcing_s
489    o added verification for adjoint with ptracers
490      - adm. grdchk fail so far
491      - tlm. grdchk OK
492      - checked tapelev/comlev recomputations: OK
493    <<<checkpoint51b_pre
494    
495    checkpoint51a_post
496    o added code for biogeochemistry package
497      - new pkgs: dic, gchem
498      - new subroutine in ptracers
499    o modify code for biogeo packages
500      - in model/src and pkg/ptracers
501    
502    checkpoint51
503    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
504      - autodiff, ctrl, exf, grdchk, seaice
505      kept separate packages
506      - cost, ecco, obcs
507    o updating verification/internal_wave, verification/lab_sea
508      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
509    
510    checkpoint50i_post
511    o Preparing next differentiable checkpoint and sync
512      of MAIN vs. ecco-branch
513      - 1st step: this one is differentiable
514      - 2nd step: next(! not this) checkpoint will have updated packages
515                  from ecco-branch)
516    
517    checkpoint50h_post
518    o new package "land": provide surface BC for AIM.
519    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
520    o AIM: use true log-P extrapolation for near surface temp (= as in
521        F.Molteni paper) ; update aim.5l_cs output.
522    o New variable in PARM03 for more flexible pickups
523    o somewhat cleaned package initialisation sequence for
524      ctrl/ cost/ ecco/ in packages_... routines
525    
526    checkpoint50g_post
527    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
528      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
529      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
530        made the default because of faster convergence than ADI
531    
532    checkpoint50f_post
533    o exf totally restructured
534      - replaced all exf_set_ routines by one generic exf_set_gen.F
535        and made sure it's still differentiable
536      - split exf_getffields.F into new exf_bulkformulae.F
537      - exf_inscal_/exf_outscal_ suffixes consistent with field names
538      - updated adjoint/makefile and relevant verif. accordingly
539    
540    checkpoint50f_pre
541     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
542          + change Evap over land. (update aim.5l_cs output)
543     o added missing .cvsignores and made uniform across expts
544     o changed configuration of tidal_basin_2d expt
545     o added pkg/debug functions for tracing code in fatal crashes
546     o tidied pkg/monitor to use MONITOR_OPTIONS.h
547     o new fn in pkg/monitor to stop model if solution grows too big
548     o removed lots of single quotes from comments
549    
550    checkpoint50e_post
551    o make KPP work with PTRACERS
552     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
553       nearly a copy of kpp_transport_s
554     - there is no analogue to SurfaceTendencyS, so I have to use
555       gPtr(of the surface layer) instead
556    o add a new platform SunFire+mpi (SunFire 15000) to genmake
557    checkpoint50e_pre
558    
559    checkpoint50d_post
560    o change kpp output from multiple-record state files to single-record state
561      files analogous to write_state.F
562    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
563      analogous to the cg2d-related output.
564    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
565      so that writing to internal file fn (with length 512) fails.
566    checkpoint50d_pre
567    
568    checkpoint50c_post
569    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
570    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
571    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
572    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
573    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
574    
575    checkpoint50c_pre
576    Merging from release1_p13:
577    o bug fix for pkg/seaice dynamic solver
578    o Added SEAICE_initialHEFF to pkg/seaice
579    
580    checkpoint50b_post
581    o store u*,v* in gU,V instead of in guNm1,gvNm1
582    o in order to put the momForcing out of the Adams-Bashforth:
583      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
584      to timestep.F
585    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
586    o re-generate output for highly sensitive test-exp:
587       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
588    
589    checkpoint50b_pre
590    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
591    o corrected CPP option mismatch in exf_Bulk... functions for case
592      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
593    
594    checkpoint50a_post
595    o Bug fix for merging between c50 and KPP.
596      ikey was passed from thermodynamics to kpp_calc via
597      common block rather than being recomputed in kpp_calc,
598      in contradiction with new key itdkey.
599      New key ikppkey created, and tamc.h headers updated.
600    
601    checkpoint50
602    - 2nd step of merge with ecco-branch:
603      merge changes in ecco-branch back into main trunk
604    - bug fix in find_alpha
605    - more storing in gmredi_calc_tensor.F, kpp_routines.F
606    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
607    - merged some sliced AD support routines
608    
609    checkpoint49
610    merged from ecco-branch:
611    o exf:
612      - Enable initialisation of forcing fields to constant
613        (runtime) values.
614      - in exf_getffields.F
615        Reduce i-/j-loop to interior domain, discarding overlaps.
616        That also fixes wrong TAF-key computations for key_1, key_2
617        with bulf formulae.
618      - exf_init.F modify #ifdef for exf_init_evap
619      - exf_getffieldrec.F, ctrl_getrec.F
620        The following INT-usages are not safe:
621          fldsecs  = int(fldsecs/fldperiod)*fldperiod
622          fldcount = int(fldsecs/fldperiod) + 1
623        and were modified.
624    o autodiff: checkpoint_lev...
625      - updated storing for bulk formulae (some arrays were missing)
626      - added state for seaice package
627      - synchronized with main branch
628    o DIVA:
629      Modif.s in
630      - the_main_loop.F
631      - the_model_main.F
632      and added cost_final_restore.F cost_final_store.F
633      o With these changes, it is possible to fully separate
634        the first forward run to compute the cost function (mdthe_main_loop)
635        and adjoint runs over individual DIVA intervals (adthe_main_loop)
636        into separate model executions.
637        This enables better tuning of DIVA to given queue sizes.
638      o Loss of cost function value in consecutive DIVA runs is
639        fixed by storing to 'costfinal' file.
640      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
641        beginning/end of adjoint integration is accounted for.
642      The current changes apply to TAF-1.4.26.
643      TAF has one remaining bug, requiring one manual change
644      (see MITgcm manual).
645    o cal: synchronized between MAIN and ecco-branch
646    
647    checkpoint48i_post
648    o Changes to restore differentiability of code w.r.t. previous tag
649      (mostly adding new routines to make list and replacing
650      pressure by totPhiHyd).
651    o Updated and merged grdchk package
652      - has both ADM and TLM checks
653      - works for single- and multi-proc.
654      - output cleaned
655      - worked successfully for parallel DIVA
656    o genmake:
657      - Adding -platform=SP4
658      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
659    o Modif. for DIVA:
660      ctrl_unpack should not be called in intermediate DIVA interval.
661      (similar thing would apply for active files such as
662      tbar, sbar, psbar, which should not be reinitialised;
663      only relevant for ecco-branch)
664    
665    checkpoint48h_post
666    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
667    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
668    o Added SEAICE_initialHEFF to pkg/seaice
669    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
670    
671    checkpoint48g_post
672    --- EOS:
673    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
674      store total Potential in totPhyHyd for diagnostics & EOS.
675    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
676    --- Pressure/geopotential gradient:
677    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
678    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
679      ( changes results of global_ocean_pressure )
680    o NLFS + z-coord.: add eta*Rho' contribution.
681    o accurate phiHyd when using interface-W at the middle between 2 centers
682     ( changes results of ideal_2D_oce )
683    o includes r* 2nd term in potential gradient.
684    
685    checkpoint48f_post
686    Merging from release1_p12:
687    o Modifications for using pkg/exf with pkg/seaice
688      - improved description of the various forcing configurations
689      - added basic radiation bulk formulae to pkg/exf
690      - units/sign fix for evap computation in exf_getffields.F
691      - updated verification/global_with_exf/results/output.txt
692    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
693      (SBO) core products, including oceanic mass, center-of-mass,
694      angular, and bottom pressure (see pkg/sbo/README.sbo).
695    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
696      to avoid negative values in shallow regions.
697      - updated verification/natl_box/results/output.txt
698      - updated verification/lab_sea/results/output.txt
699    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
700    o Added useSingleCpuIO option (see PARAMS.h).
701    o Updated useSingleCpuIO option in mdsio_writefield.F to
702      work with multi-field files, e.g., for single-file pickup.
703    o pkg/seaice:
704      - bug fix in growth.F: QNET for no shortwave case
705      - added HeffFile for specifying initial sea-ice thickness
706      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
707    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
708      kpp_transport_t.F, forward_step.F, and the_main_loop.F
709    o pkg/seaice:
710      - adjoint-friendly modifications
711      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
712    
713    checkpoint48e_post
714    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
715    o dynamics: change definition of computational domain & adapt mom_fluxform
716      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
717    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
718        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
719        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
720        global_ocean.90x40x15 global_with_exf global_ocean_pressure
721        inverted_barometer solid-body.cs-32x32x1
722      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
723    
724    checkpoint48d_post
725    o in preparation for r*:
726     a) use pre-computed gradient of hydrostatic potential:
727        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
728     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
729        => affects results of glob_oce_pressure (different truncation error)  
730      update output.txt of ideal_2D_oce & global_ocean_pressure
731    
732    checkpoint48d_pre
733    o in preparation for r*:
734      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
735      pass the 2 comp. of the grad. as arguments to momentum S/R.
736      but for the moment, only used if it does not change the results.
737    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
738    
739    checkpoint48c_post
740    Modifications in treatment of initial flux forcing controls
741    to avoid extra storing of flux fields.
742    
743    checkpoint48c_pre
744    o Added tidal_basin_2d experiment (currently 1D!)
745    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
746    
747    checkpoint48b_post
748    o r* coordinate added in #ifdef NONLIN_FRSURF block.
749     (modification to pressure gradient not yet implemented)
750    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
751      (for U & V) that are used for vertical advection of momentum.
752    
753    checkpoint48a_post
754    o In preparation for r*, use temp. array to compute vertical transport
755       in flux-form momentum pkg. => change results of few test-exp.
756      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
757                        lab_sea, natl_box & plume_on_slope
758    
759    checkpoint48
760    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
761    
762    checkpoint47j_post
763    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
764    o moved adexch from forward_step to addummy_in_stepping
765    o added exch in ctrl_map_...
766    o aveFreq.=0. at end of cost_final to avoid overwrite in
767      reverse checkpointing loop
768    o Yet more changes in gmredi:
769      * adgmredi_calc_tensor
770        avoiding all recomputation of gmredi_slope_limit
771      * adgmredi_x/y/rtransport
772        added flag for excessive storing to avoid recomp. of
773        u/v/rtans, dTdx/y/z
774        -> this is not really necessary and very memory-consuming
775      * adgmredi_slope_psi:
776        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
777      * gmredi_slope_limit
778        re-activated full calculation of taperfct for case 'ac02'
779    o updating verification/ adjoints of carbon, global_ocean.90x40x15
780    
781    checkpoint47i_post
782    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
783    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
784      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
785    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
786    o gmredi: fix few bugs.
787    
788    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
789    This will be a good checkpoint to plug into the ecco-branch.
790    o few modif.'s to get latest version adjointed
791      (mainly kick out code in ini_linear_phisurf)
792    o modif's to run adjoint with exactConserv
793    o case GM_BOLUS_ADVEC should be cleaned
794      S/R gmredi_slope_psi should be cleaned
795    o verification/carbon now has exactConserv=.TRUE.
796    
797    checkpoint47g_post
798    o time-average AIM output: becomes independent from statvars time-average
799      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
800    o After TAF bug fix:
801      Tested adjoint of gmredi package.
802      Tests were done with checkpoint47 rather than with latest
803      checkpoint47f_post since the latter is broken for the adjoint
804      verification/carbon/ contains both ADM and TLM gradient checks.
805    Here they are, before they get changed/lost/stolen.
806    Mostly modif.'s to fix numerical sensitivities.
807    Gradient checks OK for
808    - GM_taper_scheme:
809      * clipping
810      * ac02
811      * linear
812      * glw91
813      * dm95
814      * ldd97
815    - GMREDI_OPTIONS:
816      * GM_VISBECK_VARIABLE_K
817      * GM_NON_UNITY_DIAGONAL
818      * GM_EXTRA_DIAGONAL
819      * GM_BOLUS_ADVEC
820    in conjunction with data.gmredi parameters to be checked in
821    in a few minutes under verification/carbon/code/
822    
823    checkpoint47f_post
824    Merging from release1_p10:
825    o modifications for using pkg/exf with pkg/seaice
826      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
827        and SEAICE_EXTERNAL_FLUXES
828      - pkg/exf CPP options EXF_READ_EVAP and
829        EXF_NO_BULK_COMPUTATIONS
830      - usage examples are Experiments 8 and 9 in
831        verification/lab_sea/README
832      - verification/lab_sea default experiment now uses
833        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
834    
835    checkpoint47e_post
836    o created a tag prior to creating a branch
837    
838    checkpoint47d_post
839    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
840      at the bottom boundary had an erroneous half slip boundary condition
841    o added bottom drag and no slip boundary condition capabilities to
842      oceanic pressure coordinates code
843    o added new verification experiment global_ocean_pressure, this experiment is
844      also described in the tutorial section of the manual
845    checkpoint47d_pre
846    
847    checkpoint47c_post
848    o Added a verification experiment for a global cubed-sphere ocean run
849      -  verification/global_ocean.cubed32x32x30
850      -  uses pkg/therm_seaice and pkg/bulk_forcing
851    
852    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
853    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
854      when using P-coordinate; only implemented for atmospheric config.
855    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
856      NOTES: requires option NONLIN_FRSURF to be "#define".
857    o update advect_xz/results/output.txt (left from checkpoint44g_post)
858    
859    checkpoint47b_post
860    Merging from release1_p9:
861    o pkg/seaice
862      - removed GOTO's and added taf directives
863      - double precision constants to reduce the g77 (Linux)
864        to F77 (SGI) differences reported in release1_p8
865    o tools/genmake
866      - added SGI options
867    o verification/testscript
868      - updated to that of checkpoint47a_post
869    o verification/global_ocean.90x40x15/input/eedata
870      - modified for SGI f77 compatibility
871    o verification/lab_sea
872      - added description of sea-ice model
873      - added missing matlab routines
874      - added test of thermodynamics parallelization
875    
876    checkpoint47a_post
877    o new pkg: aim_v23
878     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
879       for now, keep the same surface forcing as before.
880     - Part-Cell implemented into AIM; check that Heat & Water are conserved
881     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
882     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
883    o add diagnostic of surface correction term in monitor output
884    
885    o bulk_force and therm_seaice
886    - Two packages:  bulk_force (Bulk forcing)
887      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
888    - Earlier integration from Stephaine Dutkiewicz
889      and Patrick Heimbach.
890    - Two ifdef statements for compile time,
891       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
892    
893    checkpoint47
894    differentiable version of checkpoint46n_post
895    o bug fix in quasihydrostaticterms
896    o * "clean" adjoint code (in terms of extensive recomputations)
897        can now be obtained for all GMREDI options (i.e. for
898        - GM_VISBECK_VARIABLE_K
899        - GM_NON_UNITY_DIAGONAL
900        - GM_EXTRA_DIAGONAL
901        - GM_BOLUS_ADVEC )
902      * However, wrong gradient check problem remains unsolved.
903      * New CPP options have been introduced for different
904        tapering schemes
905    o external_fields_load now part of differentiation list
906    o pressure needs multiple storing;
907      would be nice to have store_pressure at beginning or
908      end of forward_step, e.g. by having phiHyd global (5-dim.)
909      (NB: pressure is needed for certain cases in find_rho,
910      which is also invoked through convective_adjustment).
911    o recomputations in find_rho for cases
912     'JMD95'/'UNESCO' or 'MDJWF' are OK.
913    o #define ATMOSPHERIC_LOADING should be differentiable
914    o ini_forcing shifted to begining of initialise_varia
915    o Incorporating QNVS line search routines into MITgcm
916      (this is separate code, and therefore not under pkg)
917      lsopt/, optim/
918    o Updated verification/carbon/
919      - #define GM_VISBECK_VARIABLE_K
920      - GM_taper_scheme    = 'ldd97'    
921    
922    checkpoint46n_post
923    Merging from release1_p8:
924    o verification/natl_box:
925      updating new external_fields_load routine
926    o New package: pkg/seaice
927      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
928      The sea-ice code is based on Hibler (1979-1980).
929      Two sea-ice dynamic solvers, ADI and LSR, are included.
930      In addition to computing prognostic sea-ice variables and diagnosing
931      the forcing/external data fields that drive the ocean model,
932      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
933      The implied surface heat flux is then stored in variable
934      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
935      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
936      non-local transport term.  Because this call precedes model
937      thermodynamics, temperature under sea-ice may not be "exactly" at
938      the freezing point by the time theta is dumped or time-averaged.
939      N.B.: fairly large differences in accuracy occur across
940            different platforms/compilers; comparison between
941            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
942            generated output gives:
943       T           S           U           V
944      C D M    c        m  s        m  s        m  s        m  s
945      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
946      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
947      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
948    
949      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
950    o GAD:
951      - generated new common blocks to account for call of
952        same gad routines with differing traceridentities
953        (needed to modify tracerIdentity indices in GAD.h)
954      - generated separate common blocks for case useCubedSphereExchange
955        (Department of Futurology)
956      - parameter lists to gmredi_?transport: added tracerIdentity
957      - added new key indices to tamc.h
958    o external_fields_load:
959      - added this routine to TAF list
960      - needed to make some common blocks global and additional storing
961        along the same lines as exf package (checkpoint_lev?_directives.h)
962    o exf:
963      updated external forcing package
964      - bug fixes carried over from ecco-branch
965        (missing OBCS_OPTIONS.h in two routines)
966      - enable easy to use "no forcing".
967      - added exf I/O for atmospheric loading
968      - added exf I/O for runoff data
969      - transfered scaling between exf <-> MITgcm to exf namelist
970    o Adding new verification experiment global_with_exf.
971      This verification experiment is almost identical to the
972      global_ocean.90x40x15 experiment, except that it uses
973      the exf (and cal) package instead of the
974      external_fields_load routine (cf README file).
975    
976    checkpoint46m_post
977    o modified testscript to return -- when there are no lines of "%MON" output
978    o added new flag "quasiHydrostatic" for QH mode
979      and new routine quasihydrostaticterms()
980    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
981      New routine: mom_u_coriolis_nh()
982    o fixed sign of non-hydrostatic metric terms in u and v equations.
983      Depend on correct sign of gravitySign.
984    o added work.pc* to .cvsignore in aim directories using ifc
985    o introduced flag for controllin non-hydrostatic metric terms
986    o removed gravitySign from PARM04
987    o switched to g77/ifc from pgf77 in aim experiments
988    
989    checkpoint46l_post
990    o made convective adjustment work with pressure coordinates:
991     - changed the direction of k-loop in convective_adjustment.F for the
992       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
993     - adjusted the reference pressure k-index in convective_adjustment.F
994     - adjusted the convection condition in convect.F (in analogy to
995       calc_ivdc.F)
996     - convective_adjustment no longer computes anything on the halos
997     - removed the warnings about negative salinity from find_rho.F and
998       find_alpha.F; instead the new routine look_for_neg_salinity, called
999       at the beginning of find_rho, find_alpha, and find_beta, does a
1000       check of the entire slice, if CPP-option
1001       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
1002    checkpoint46l_pre
1003    
1004    checkpoint46k_post
1005    o fixed the verification/global_ocean.90x40x15 experiment:
1006     - new bathymetry (the world according to A., JMC, and M.)
1007     - new initial fields and forcing fields (*.bin files)
1008     - new POLY3.COEFFS (for the next release one should switch to a full
1009       equation of state: JMD95P or MDJWF)
1010     - fixed several errors and redundancies in the data file
1011     - experiment uses looped cells
1012     - added matlab directory with diagnostic scripts for plotting of output
1013    
1014    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1015     - read AIM physics parameters from a file (data.aimphys)
1016     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1017    
1018    checkpoint46j_post
1019    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1020    o move wVel computation at the end of the time step, in S/R integr_continuity
1021    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1022    o update timeave pkg for wVel diagnostic.
1023    checkpoint46j_pre
1024    
1025    checkpoint46i_post
1026    o Clean up AIM package (and keep the results unchanged):
1027      include CPP_OPTION and use IMPLICT NONE in all routines ;
1028      declare all the variables _RL ; use _d 0 for all numerical constants.
1029      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1030    
1031    checkpoint46h_post
1032    o cleaned up the use of rhoNil and rhoConst.
1033      - rhoNil should only appear in the LINEAR equation of state, everywhere
1034        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1035        and the dynamical equations are all divided by rhoConst
1036    o introduced new parameter rhoConstFresh, a reference density of fresh
1037      water, to remove the fresh water flux's dependence on rhoNil. The default
1038      value is 999.8 kg/m^3
1039    o cleanup up external_forcing.F and external_forcing_surf.F
1040      - can now be used by both OCEANIC and OCEANICP
1041    checkpoint46h_pre
1042    
1043     Added code to convert surface volume flux (fresh water) into
1044     a mass flux when using P coordinates in the ocean (OCEANICP).
1045     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1046    
1047    checkpoint46g_post
1048    o Include a new diagnostic variable phiHydLow for the ocean model
1049      - in z-coordinates, it is the bottom pressure anomaly
1050      - in p-coordinates, it is the sea surface elevation
1051      - in both cases, these variable have global drift, reflecting the mass
1052        drift in z-coordinates and the volume drift in p-coordinates
1053      - included time averaging for phiHydLow, be aware of the drift!
1054    o depth-dependent computation of Bo_surf for pressure coordinates
1055      in the ocean (buoyancyRelation='OCEANICP')
1056      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1057        Theta, Salinity, and Pressure in the parameter list. This routine is
1058        presently contained in find_rho.F. This routine does not give the
1059        correct density for 'POLY3', which would be a z-dependent reference
1060        density.
1061    o cleaned up find_rho
1062      - removed obsolete 'eqn' from the parameter list.
1063    o added two new verification experiments: gop and goz
1064      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1065    checkpoint46g_pre
1066    
1067    checkpoint46f_post
1068    o Enable tangent linear (forward mode) gradient checks:
1069      - extended active file handling to g_... files
1070      - added TANGENT_SIMULATION to theSimulationMode
1071      - extended grdchk package accordingly
1072    o added tangent linear setup in verification/carbon/code_ftl
1073    o added adjoint setup in verification/front_relax/code_ad
1074    
1075    checkpoint46e_post
1076    o Added new equation of state -> MDJWF
1077      - EOS of McDougall et al., 2002, JAOT, submitted
1078      - caveat: the equation of state is only valid for a smaller (more
1079        realistic?) range of values than JMD95P/Z and UNESCO
1080      - added masks to the calculation of pressure in store_pressure
1081      - added more check values for density in check_eos (ini_eos.F), some of
1082        the old check values are out of the range of the MDJWF-eos, so don't
1083        expect perfect matches for those
1084    checkpoint46e_pre
1085    
1086    checkpoint46d_post
1087    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1088      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1089      case of pressure coordinates. eosType='JMD95Z' in
1090      combination with buoyancyRelation='OCEANICP' now causes an error.
1091    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1092      in find_alpha/beta.
1093    checkpoint46d_pre
1094    
1095    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1096      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1097    
1098    checkpoint46c_post
1099    o Changes necessary for ocean in p-coordinates
1100     -  Added new buoyancy relation = 'OCEANICP'
1101     -  Added new parameters = gravitySign (this used to be contained inside
1102        the factor dRdZ which I added when we first switched to R coordinates).
1103     X GM/Redi is not compatible (yet)
1104     X bottom drag and no-slip need to be debugged.
1105    checkpoint46c_pre
1106    
1107    checkpoint46b_post
1108    o Added new equation of state -> JMD95Z and JMD95P
1109      - EOS of Jackett and McDougall, 1995, JAOT
1110      - moved all EOS parameters into EOS.h
1111      - new routines ini_eos.F, store_pressure.F
1112    o Added UNESCO EOS, but not recommended because it requires
1113      in-situ temperature (see JMD95)
1114    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1115      unesco.f to be used with POLY3
1116    checkpoint46b_pre
1117    
1118    checkpoint46a_post
1119    o Added (atmospheric) pressure loading
1120      - new field in FFIELDS.h, etc...
1121      - new cpp flag ATMOSPHERIC_LOADING
1122    o Changed hFacC to _hFacC in calc_phi_hyd.F
1123    o Added SHORTWAVE_HEATING to some files for consistency
1124    checkpoint46a_pre
1125    
1126    checkpoint46
1127    further merges from release1_p5
1128    o new ctrl package
1129      - adopted from ECCO environment to enable optimization
1130      - added Eliassen Palm fluxes to controls
1131    o added Eliassen Palm flux controls to gradient check package
1132    o cost package
1133      - Compatible with new ctrl package
1134      - added Eliassen Palm cost hooks
1135      - modif's of existing cost functions
1136    o Adjoint-related bug fixes in kpp:
1137      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1138      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1139    o autodiff package
1140      - flow directives:
1141        + new for S/R do_the_model_io
1142        + enhanced for S/R checkpoint
1143        + new gmredi.flow
1144      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1145        disable adcommon.h/g_common.h by default.
1146      - fixed problem for adjoint of global_max
1147    o modified verification/carbon/
1148    o New setup for adjoint of global_ocean
1149    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1150    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1151    o incorporated hooks for sponge layer code (external_forcing.F)
1152    
1153    checkpoint45d_post
1154    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1155    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1156      (affects plume_on_slope "cg2d" output)
1157    o add new parameter deltaTfreesurf for free-surface time stepping
1158    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1159    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1160    o change phiMin in exp1 (to agree with documentation)
1161    o add new flags:
1162     - T,S forcing inside/outside Adams-Bashforth
1163     - turn off temp,salt advection and/or forcing
1164     - for each tracer, define internal flag for multiDimAdvection & A-B
1165    o monitor: change definition of KE to check conservation of Energy
1166    
1167    checkpoint45c_post
1168    o Removed f90 comments ("!")
1169    o Modified initialisations to enable exf package for MITgcm
1170      (without invoking ECCO_PACKAGE).
1171    o modifications to gradient check package (Martin Losch)
1172      - enable centered differences
1173      - modified format of standard output
1174    
1175    checkpoint45b_post
1176    o cleaned exchange calls in cg2d
1177    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1178    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1179      to configure barotropic setup (Martin Losch)
1180    o moved some initialisations within bi,bj loop in dynamics
1181      (TAF flow dependency)
1182    o in initialise_varia, moved call packages_init_variables
1183      before convective_adjustment_init
1184      (corresponding adjustment of TAF tape initialisation).
1185    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1186    
1187    checkpoint45a_post
1188    o compute Rho over the whole domain (extend iMin,jMin indices)
1189    o specific exchange for X-slice domain (case Ny=1)
1190    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1191    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1192    
1193    checkpoint44h_post = checkpoint45
1194    o Fix to restore differentiability:
1195      place at which packages_init_variables is called in
1196      initialise_varia is crucial for reverse control flow.
1197    o modifications in GMRedi to enable stable adjoint
1198      (corresponding modif's in thermodynamics, dynamics)
1199    o added missing hook for sponge layer code in external_forcing
1200    o modified test cost functions
1201    o storing in gad_advection (plus removal of write(0,*)!
1202    o missing headers TR1.h added in convective_adjustment routines
1203    o errorMessageUnit set non-equal zero in eeboot
1204      (conflict on some platforms, e.g. IBM SP3)
1205    o modified carbon verif.
1206    
1207    checkpoint44h_pre
1208    o vertical grid option: allow to put the Interface at the middle between
1209      2 cell-centers ; replace delZ in pkg/kpp by drF.
1210    o GM Advective form: Tracers are advected using the residual transport (=
1211      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1212    
1213    checkpoint44g_post
1214    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1215      results) ; ifdef missing in thermodynamics.F
1216    
1217    checkpoint44f_pre,checkpoint44f_post
1218    o added PTRACERS package
1219      This allows an arbitrary number of passive tracers to be integrated
1220      forward simultaneously with the dynamicaly model.
1221      + Implemented so far:
1222        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1223        - I/O and checkpointing
1224        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1225      + Not implemented so far:
1226        - KPP
1227        - OBCS
1228      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1229        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1230        line in data.pkg.
1231      + This package is disabled by default since it increases storage.
1232    
1233    
1234    o testscript: added -cleanup option
1235    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1236                 b) enable to filter 2D fields.
1237    
1238    checkpoint44e_pre,post
1239    o re-wrote convective adjustment to use pre-calculated weights
1240      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1241      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1242      Original calls to convect() still in place.
1243    
1244    chkpt44d_pre,post
1245    o added missing EXCLUDE_MONITOR flags
1246    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1247      (incompatible typ in MIN/MAX expressions caused problems
1248      on IBM SP3)
1249    o in genmake added variable MAKEDEPEND
1250      plus resetting for case SunOS
1251    o added timer_stats.c routine for IBM SP3
1252    o removed variables in dynamics
1253    !!! I forgot to create tag chkpt44d_pre !!!
1254    !!! But chkpt44d_pre = chkpt44c_post    !!!
1255    
1256    o real fresh water flux implemented with non-linear free-surface.
1257    
1258    chkpt44c_pre,post
1259    o few fix (mask in shap_s2, EmPmR in external_field_load,
1260      USE_NATURAL_BCS in solve_for_P);
1261    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1262    
1263    checkpoint44b_pre/_post
1264    o merge of relevant stuff from the ecco-branch:
1265      - genmake: removed $S64 overwrite for case SunOS
1266      - pkg/exf: update and corrections for field swapping and obcs
1267      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1268                  harmonized between ECCO and MITgcm
1269      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1270                      updated checkpointing_lev... lists for obcs
1271      - model/src: minor changes in forward_step, plot_field
1272                   added directive for divided adjoint in the_main_loop
1273      - pkg/mdsio: added mdsio_gl_slice
1274    
1275    o check parameters & config (chkpt44a_pre,post)
1276    o OBC and NonLin_FrSurf.
1277    
1278    checkpoint44
1279    o fix bug in mom_vi_del2uv
1280    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1281    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1282    o update AIM experiments (NCEP input files)
1283    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1284    o added some stuff for AD
1285    
1286    checkpoint43
1287    o added two new advection tests
1288    o added global 4x4 degree ocean test
1289    o added test of H&S94 with free surface on cube
1290    o some final mods for gradient check, adjoint,...
1291    
1292    checkpoint42
1293      Fixed AD-related problems:
1294    o Store directives up-to-date with re-arranged Adams-Bashforth
1295      (mainly thermodynamics.F)
1296    o New store directives for multi-dim. advection schemes
1297      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1298      * new common block and key passkey
1299      (mainly gad_advection.F)
1300    o Modified store directives for split of dynamics/thermodynamics
1301      for the case ALLOW_KPP
1302    o Cleaned argument list for timestep_tracer.F
1303    
1304    checkpoint41
1305    o re-formatted/added comments in prologues of key subroutines
1306      to work with protex
1307    
1308    checkpoint40
1309    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1310    o added FLT (floats) package from Arne along with demo. experiment
1311    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1312      implementation of forward-in-time forcing terms
1313    o more mods for non-linear free-surface including new variable
1314    o modified multi-dim method to work on cube
1315    o bug fix in KPP (from DM)
1316    
1317    checkpoint40pre9
1318    o added DST advection schemes
1319    o fix MPI bug on SGI's
1320    o modifications for non-linear free-surface
1321    o fixed conditionals for fixed flow/passive tracer only mode
1322    o added tension/strain form of stress tensor
1323    o changes to commenting of arguments for TAF/TAMC
1324    o added/updated many matlab scripts
1325    o added multi-dimensional advection method for tracers
1326      
1327    checkpoint40pre8
1328    o new package rw/
1329      Added method for dumping intermediate local arrays:
1330      mdsio_writetile - same as mdsio_writefield except works from inside
1331                        bi,bj loop
1332      mdsio_writelocal - same as mdsio_writetile except works for local
1333                         arrays
1334      write_local_r? - higher-level wrapper for mdsio_writelocal
1335      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1336      Example given at end of mom_vecinv.F that dumps some local arrays.
1337    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1338      control flux-form versus vector invariant code.
1339      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1340      or genmake -DISABLE ...
1341    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1342      (additional storing is now needed for case vecinv;
1343      currently nothing implemented to switch this storing off
1344      in case fluxform is used since no CPP flag available).
1345    
1346    checkpoint40pre7
1347    o bug fix in dynamics.F
1348      calc_viscosity called before k=1,Nr loop.
1349    o added some #ifdef's ALLOW_PASSIVE_TRACER
1350    o cleaned initialisations in ctrl_map_ini
1351      related to TAF
1352    
1353    checkpoint40pre6
1354    o split dynamics into thermodynamics & dynamics
1355    o corresponding split of calc_diffusivity into
1356      calc_diffusivity, calc_viscosity
1357      (kpp_calc_diff, kpp_calc_visc).
1358    o Added diffkr, kapgm to control variables
1359    o bug fix in gmredi_slope_limit for ldd97
1360    
1361    checkpoint40pre5
1362    o proper initialization of Adams-Bashforth time stepping
1363      + uses forward step for very first step of model (iter=0)
1364    o re-generated *all* output since almost all output is modified by this
1365      change (sorry but we've been putting this one off for about 2 years)
1366      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1367        *not* regenerated since they are already out of date and I don't
1368        want to create the impression that they are suddenly working.
1369    o removed KAP stuff for DEC's
1370    o modified/added many .cvsignore files in */code and */input
1371    o added new expt "solid-body.cs-32x32x1"
1372      + this uses an alternative form of ini_curvilinear_grid.F which
1373        is not necessarily any better than the current one...
1374    
1375    checkpoint40pre4
1376    o added re-initialisations of utrans,vtrans,rtrans in
1377      calc_common_factors which are crucial for TAF.
1378    o extended iMin,jMin range for calc_common_factors,
1379      calc_diffusivity
1380    o added option ALLOW_PASSIVE_TRACER
1381    o a few minor updates and fixes
1382    
1383    checkpoint40pre3
1384    o created calc_gtr1.F for gad package
1385    o split the_main_loop and re-introduced forward_step
1386    o some recomputations of nIter0 for TAMC
1387    
1388    checkpoint40pre2
1389    o Updated to latest branch of AJA, JMC
1390    o Added gradient check package
1391    o Added routines for passive tracer handling
1392    o Added carbon sequestration sensitivity experiment
1393    
1394    checkpoint39
1395     o Modifications and fixes to support TAMC
1396       (mainly missing or wrong directives)
1397     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1398       in addummy_in_stepping
1399     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1400     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1401     o Included following packages:
1402       cal: calendar
1403       exf: external forcing
1404       ecco: essential routines to control use of cal, exf
1405             (NB: this is not the full ECCO environment)
1406     o disabled some packages by default in genmake
1407    
1408    checkpoint38
1409     o see notes_c37_adj.txt
1410     o corrected wrong layer index in external_forcing_t
1411     o replaced the_main_loop/forward_step by the_main_loop
1412     o removed forceoutput from write_state
1413       (replaced criteria for initial/final state)
1414     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1415    
1416    checkpoint37
1417     o mdsio.F routine split and packaged in pkg/mdsio
1418       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1419        used unless genmake -disable=mdsio)
1420     o allow a more precise surface-geopotential gradient for the atmosphere
1421       taking into account the change in space of Alpha (=1/rho) at the surface.
1422     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1423       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1424     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1425       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1426       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1427     o Time-Average diagnostics defined as a pseudo package "timeave".
1428     o pickup files : old pickup (before c35) did not work with new code (c35
1429       and after) unless activating 2 commented lines in initialise-varia.
1430     o Non-Hydrostatic pickup file Pb fixed.
1431     o bug with Rigid-lid version (since c35) fixed.  
1432    
1433    checkpoint36
1434     o implement Crank-Nickelson barotropic time-stepping
1435     o recover Time-Average diagnostics
1436     o fix Pb in checkpoint (PR#19)
1437     o AIM become a standard package ; clean unused CPP_kees
1438    
1439    checkpoint35
1440     o subtantial rewrite of dynamics.f
1441     o allows staggered time-stepping
1442     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1443     o added bottom drag (linear + quadratic)
1444    
1445    checkpoint34
1446     o Modified exchange routines for correct reverse simulation.
1447     o Added verification output to comply with bug fix in impldiff.F
1448       as of c33 (exp2, natl_box).
1449     o Corrected store directives in dynamics.F
1450     o Corrected array boundaries in impldiff.F
1451     o Corrected array dimensions in gmredi.
1452       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1453     o Added routine GLOBAL_SUM_INT to global_sum.F
1454     o Added mdsio_gl.F for ECCO purposes.
1455    
1456    checkpoint33
1457     o Fixed bug in lower BC in impldiff.F
1458     o Fixed confusion about units of forcing arrays in FFIELDS.h
1459       namely Fu,Fv,Qnet,Qsw,EmPmR:
1460       - Removed verification/natl_box/code/external_fields_scale.F
1461         (did not differ from that in model/src)
1462       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1463         (see FFIELDS.h for description)
1464       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1465         kpp_calc.F and kpp_transport_t.F
1466       - Removed model/src/external_fields_scale.F and calls to it
1467       - verification/natl_box uses flux data with "atmospheric" sign so
1468         a special version of external_fields_load.F is used to
1469         change the data as it's read in. This way, the arrays
1470         have the right units and signs at all times tha a user could
1471         possibly use them.
1472     o Corrected genmake to delete a temporary file during configuration
1473    
1474    checkpoint32
1475     o Scaling of forcing fields moved from external_forcing.F to
1476       external_fields_scale.F, called directly after loading fields.
1477     o Surface relaxation terms added to surface tendency fields in
1478       extra subroutine.
1479     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1480       fields.
1481     o Changes in GMRedi to comply with packaging structure.
1482     o Modifications and bug fixes in KPP package.
1483     o Verification experiment for KPP added (verification/nat_box/)
1484    
1485    checkpoint31
1486     o Packages interface brought in line with defined standard
1487       -> new routines packages_...F
1488       -> changes in initialise_fixed.F, initialise_varia.F
1489       -> enables initialisation interface for ECCO package
1490     o Rescaling of external forcing fields immediately after read
1491       (removed from external_forcing.F)
1492       -> new: surface_fields_scale.F
1493       -> affects ini_foorcing.F, external_fields_load.F
1494     o Computation of surface tendencies before tendency updates.
1495       -> new: external_forcing_surf.F
1496     o Change of variable names useGMRedi, useKPP, useECCO
1497     o Further changes in dynamics.F, impldiff.F for TAMC
1498     o Tested for experiments 0, 2, 4.
1499       - not yet tested for GMRedi.
1500       - not yet tested for KPP.
1501    
1502    checkpoint30
1503     o Updates for OBCs
1504     o New experiment for test OBCs (internal_wave)
1505     o New output.txt in verification/exp4/results/
1506     o Updates for KPP: calculation of viscosity corrected, new variables
1507       kpp_dumpFreq and kpp_taveFreq
1508     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1509       and entry for T90 in genmake
1510    
1511    checkpoint29
1512     o packaged KPP and GM/Redi
1513    
1514    checkpoint28
1515     o Corrected initialization of hFacMin for difference vertical coordinates
1516     o Modified calculation of partial cell thickness to more robust algorithm
1517     o config_summary.F: replaced write_1D_... by write_0D_...
1518       read_write.F: added subroutines write_0D_...
1519     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1520       included some initialisations required for TAMC.
1521     o routine calc_isoslopes: modified sqrt computation to make it
1522       differentiable for zero argument.
1523     o routines dynamics, impldiff:
1524       included store directives and tape key computations required for TAMC.
1525     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1526    
1527    checkpoint27
1528     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1529       formulation works properly with variable resolution.
1530     o restructured the calling tree between the_model_main() and dynamics()
1531     o split initialise() into initialise_fixed() and initialise_varia()
1532     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1533       in new routine ini_psurf()
1534    
1535    checkpoint26
1536     o moved some #ifdef in optional routines to encompass everything
1537       except the argument declarations. This was using up some memory.
1538     o fixed macros like _ADT to work with both versions of Linux cpp
1539     o cleaned up some unused and uninitialized variables
1540       (helps when debugging with strict compile options)
1541     o split up CPP_EEOPTIONS.h into options and macros
1542       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1543     o patch for 2 processor JAM mode
1544    
1545    checkpoint25
1546     o updates for OBCs and NH
1547     o dramatically reduced memory usage
1548     o added "JAM" routines for use on Artic network
1549     o parameterization of convection by implicit vertical diffusion
1550     o added a diagnostic of convective index
1551     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1552       (this is was partly for OBCs and NH but also in anticipation of
1553        an explicit free-surface option)
1554     o initial state input files for U and V
1555    
1556    checkpoint24
1557     o Removed some spurious "REAL"s
1558     o Updated KPP to latest version from JPL
1559     o Added a COS(latitude) in horizontal viscosity
1560    
1561    checkpoint23
1562     o Added del^4 diffusion for salt and temperature
1563     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1564    
1565    checkpoint22
1566     o Made many small changes: implicit none, format(i5), etc...
1567     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1568    
1569    checkpoint21
1570     o Introduced new I/O package that supports direct-access records (mdsio.F)
1571     o Split-up mid-level I/O routines
1572     o Updated input data for experiments 0,1,2,4 and 5
1573     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1574    
1575    checkpoint20
1576     o Tidied up open-boundaries some more
1577     o Added non-hydrostatic code
1578     o Fixed some input data
1579     o Modified MPI start-up to work in "coupled" context.
1580    
1581    checkpoint19
1582     o Tidied up directory structure for verification experiments.
1583     o Added new code for open boundaries.
1584     o Corrected advective terms near boundaries.
1585     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1586     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1587     o Split default parameters out of ini_parms.F into set_defaults.F.
1588    
1589    checkpoint18
1590     o Further changes for optional code generation with
1591       CPP - ugh!
1592    
1593    checkpoint17
1594     o Beginning to incorporating modularity
1595       for supporting atmos. and ocean configs.
1596     o Small changes for TAMC complinace
1597     o New ultra simple test case. Barotropic box
1598       configuration "exp0".
1599    
1600    checkpoint16
1601     o Minor changes to exchange routines to support
1602       accumulation in reverse mode. Adjoint of an
1603       assignment is an addition.
1604     o Changes to support compilation by TAMC (LR(1)
1605       syntax) and by g77 under Linux ( 72 character
1606       limit ).
1607    
1608    checkpoint15
1609     Rewrote exchange routines to allow
1610     o General tile <-> tile connectivity.
1611     o TAMC reverse mode flag ( is this really needed? )
1612     o Variable width overlap and exchange region widths.
1613     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1614       shmput/shmget, VIA, SYSV shmem and every other cool
1615       communication method.
1616    
1617    checkpoint14
1618     Consistent isomorphism chages made. These allow dynamical core
1619     to support both pressure and meters as a vertical coordinate.
1620    
1621    checkpoint13
1622     Release which corrects global_max problem and a couple
1623     of KGM time-averaging diagnostic errors. Also contains
1624     a double-gyre experiment setup as well as the baseline
1625     4 degree global template. The double gyre template is
1626     organised to allow it to be applied automatically to
1627     the baseline configuration.
1628    
1629    branch-point-rdot
1630     A few tidy-ups have been made bt the real point of this
1631     check-point (excuse the pun) is to allow a branch to be
1632     made for the purposes of adding the rDot alterations.
1633     I don't want to commit the rDot to the main-trunk until
1634     we've actually tested it...
1635    
1636    checkpoint12
1637     Tidy up and added generic genmake script (formerly
1638     configure script).
1639     Released to testers.
1640    
1641    checkpoint11
1642     Re-arranged initialise() and introduced ini_vertical_grid()
1643     and ini_masks_etc().
1644    
1645    checkpoint10
1646     Introduced the configure script.
1647     Separated out the diags package.
1648     Added template for writing time-averages of tile/intermediate quantities.
1649     Updated SIZE.h in exp2 and made the data big-endian.
1650    
1651    checkpoint9
1652     MPI fix. Filename changes (meta/data). salbin*y stuff.
1653     General tidy-up.
1654     SST.bin SSS.bin added to verification/exp2
1655    
1656    checkpoint8
1657     Inludes time-dependant forcing and time-averaging.
1658     Works at 4x4 and 2.8125x2.8125 global
1659    
1660    checkpoint7-4degree-ref
1661     Branch from checkpoint7. Released for application to
1662     global modeling and general modeling - process studies, regional
1663     model etc..
1664     Configured for verification/exp2 - 4 degree global, two process.
1665    
1666    checkpoint7
1667     Created by cnh
1668     Simple 4 degree global simulation
1669     configuration.
1670     Includes climatological wind,
1671     hydrography, bathymetry etc
1672     Does not include Heat Flux and E-P
1673    
1674    checkpoint6
1675     Created by cnh
1676     merged checkpoint5 with CD and
1677     spherical polar code.
1678     Still some problems with GM Redi
1679     abd full topography.
1680    
1681    checkpoint5
1682     Created by AJA
1683     contains updates to GM Redi
1684     and reordered timestepping loop
1685     for Implicit Diffusion.
1686    
1687    checkpoint4
1688     Created by cnh
1689     Contains memory saving macros ( _rdxc etc..) for when
1690     grid variations are limited.
1691     Contains polynomial coeffs for EOS and knudsen program
1692     for generation.
1693    
1694  checkpoint3  checkpoint3
1695   Created by cnh   Created by cnh
1696   Added extra flags for runtime options   Added extra flags for runtime options
# Line 20  checkpoint1 Line 1709  checkpoint1
1709   Restructured kloop in dynamics.F   Restructured kloop in dynamics.F
1710   Added non-linear EOS   Added non-linear EOS
1711    
1712  baseline - Original checked in code  baseline
1713     Original checked in code
1714    

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