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revision 1.7 by adcroft, Mon Jun 22 16:24:50 1998 UTC revision 1.280 by mlosch, Mon Apr 19 22:30:46 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 small modifications in exf-package to increase flexibility:
7      - change climtempfreeze from a constant to a runtime parameter that
8        is specified in data.exf_clim (default = -1.9)
9      - introduce runtime parameter windstressmax (default = 2.0) that is
10        specified in data.exf
11    o fix in pkg/thsice:
12      - update Evap (Tsf changes) to be consistent with Latent heat flux
13      - maintain snow precipitation unchanged (even if Tsf >=0).
14     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
15    
16    checkpoint52m_post
17    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
18      this does not change any of the results, because myIter=0 in swfrac always
19      lead to jwtype=2 (the default anyway), but the call makes little sense
20      as a default
21    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
22    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
23      atmospheric model (AIM) to use it ; add a "slab ocean" component.
24    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
25    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
26    o extending useSingleCpuIO option to work with new exch2 I/O format
27      - old-style, missing-tile I/O is still accessible by defining CPP
28        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
29    o monitor package can write to NetCDF files and/or STDOUT
30    o fix re-definition bug in MNC_GRID_INIT_ALL()
31    o doc/api_reference added
32      - a framework for building an API Reference Manual using all
33        the "protex" comments embedded in the code
34      - see pkg/generic_advdiff, pkg/mnc for examples
35    o MNC:
36      - make myThid the last argument for all subroutines
37      - new default for the grid files: NO halos
38      - add useMNC and other run-time flags
39      - separate per-file-group handling of the unlimited dimension
40      - early initialization of MNC w/ flags read at the eeboot stage
41        and lookup tables set in initialize_fixed
42      - write all MNC output to a freshly-created directory
43    o thermodynamics sea-ice (thsice) is now tested with testreport.
44    o test exp. advect_cs: use the standard cs32 grid ; update output.
45    o Added functionality to grdchk:
46      pick global i,j,k position (or nearest wet) where to perform check.
47    
48    checkpoint52l_post
49    o new land formulation:
50      a) use ground enthalpy as prognostic variable to ensure exact
51         energy conservation.
52      b) account for water temperature and for latent heat of freezing
53         in all processes (rain, run-off, ground storage)
54      c) compute surface and ground temperature implicitly.
55    o aim_v23 modification for new land model:
56      a) Treat separately land / ocean / sea-ice surface fluxes
57         to allow implicit computation of land & sea-ice surface temp.
58      b) add snow precipitation.
59    checkpoint52l_pre
60    
61    o fix problem (when 1 tile is empty) in min/max monitor.
62    o fix bug in timeAve (u,vZetatave in common block)
63    o no restoring terms under ice for pkg/seaice
64    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
65    o bug fix for pkg/seaice pickups
66    o change MNC call locations and add coordinate attributes
67    o mask vorticity at the corner ; affects global_ocean.cs output
68    o fix ini_curvilinear_grid ; test CS experiments with mpi
69    o aim.5l_cs: modify sea-ice fraction input file ; update output
70    o exf: Adding simple range check routine for exf fields after read
71    
72    checkpoint52k_post
73    o removed top-level directory "diags"
74      - we migrated these functions to pkg/timeave a long time ago
75    o fixed bug introduced in pkg/monitor
76    o accuracy ctrlprec = 32 insuffient for gradient checks using
77      averaged fields (I/O via cost_averages)
78      -> use ctrl.h in active_file*.F to control I/O precision.
79    o paramter list of CALL ADTHE_MAIN_LOOP
80    o added initial do_the_model_io to ecco
81    o set all ...Freq to zero after cost_final
82      taveFreq, dumpFreq, pChkptFreq
83    o MAIN and ECCO differentiability restored
84    
85    checkpoint52j_post
86    o fix nchklev in tamc.h for global_ocean...
87    o Bringing flow and store directives up-to-date
88    o Really weird thing!
89      call do_the_model_io from the_main_loop with parameters
90      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
91      TAF places a faulty re-call of initialise_varia
92      after cost_final call which should not be there!
93    checkpoint52j_pre
94    
95    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
96      error messages
97    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
98    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
99      debug output
100    o modfied mdsio_writefield.F to handle non-global files under exch2
101    o update AIM Cubed-Sphere exp (aim.5l_cs):
102      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
103    o update AIM Equatorial Channel exp:
104      use standard aim_v23 pkg and change the SST fields to be more realistic.
105    o globalFile now works with exch2
106    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
107      mon_vort3.F to make exch2 friendly with >1 tile per cube face
108    o limit timeave output for hi-res integrations
109    
110    checkpoint52i_post
111    o removed CPP_EEOPTIONS.h from verification/*/code
112    o updated the tiling for global_ocean_pressure
113    checkpoint52i_pre
114    
115    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
116      the old pkg/aim).
117    
118    checkpoint52h_pre
119    o shortened offending lines in exch2_send_rx?.template
120    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
121    o genmake2: add build & execute test for NetCDF code
122    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
123      old grid files, moved CPP_EEMACROS.h to pkg/exch2
124    o added useSingleCPUIO flag to monitor.F and mon_out.F
125    o added temporary hack for sea-ice dynamics on the cube:
126      metric terms are ignored and it is assumed that
127      there is no sea-ice on cube faces 1, 2, 4, and 5.
128    
129    checkpoint52f_post
130    o added exch2 cube routines to pkg/exch2
131    o modified hs94.cs-32x32x5 to use it
132    o added new grid files to hs94.cs-32x32x5
133    checkpoint52f_pre
134    
135    checkpoint52e_post
136    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
137      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
138    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
139      to work with implicit vertical advection and AB ;
140    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
141    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
142     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
143    checkpoint52e_pre
144    
145    o fix bug in impldiff when Nr=1 or Nr=2.
146    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
147    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
148    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
149      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
150    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
151    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
152    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
153    
154    checkpoint52d_post
155    o re-tiled many expts to allow comparison in multi-processor mode
156      - updated output accordingly
157      - changed hs94.128x64x5 to use intial T from file rather than use the
158        random number generator
159    o add infrastructure in model routines for fizhi and gridalt packages
160    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
161    o changes to permit hi-res, cubed-sphere, configuration
162      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
163      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
164      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
165        of surface winds for the cube
166      (A verification experiment, based on global_ocean.cs32x15, but with
167       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
168       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
169       complete with example surface forcing files and matlab scripts to look
170       at the output and compare it with that of global_ocean.cs32x15.)
171    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
172       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
173       to conform to the common rule.
174    o check-in the first version of the coupler + interfaces for multi-components
175       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
176       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
177       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
178       - ocean and atmos. share the same horizontal grid (no interpolation).
179       - exchanges between component and coupler is done in forward_step
180    o new verification experiment, cpl_aim+ocn:
181       coupled ocean - AIM atmosphere on cs32 grid.
182    
183    checkpoint52d_pre
184    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
185    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
186    
187    checkpoint52c_post
188    o Fixing OPTIONS files for use of exf:
189      - ALLOW_ECCO not needed
190      - ECCO_CPPOPTIONS.h should not be included from
191        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
192        as has been the case in the past
193      - All cal/exf related options are currently set in
194        single header file. Should remain so until we
195        agree on a consistent new policy.
196    o Removed all CPP options for cal package.
197      cal has no more CPP options.
198    o modified STOREs in GAD_ADVECTION
199    o corrected key comp. for passkey
200    
201    checkpoint52b_post
202    o new version: "thsice" of thermodynamic sea-ice pkg:
203     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
204     - modify fluxes but do not change theta directly;
205     - light cleaning of bulk_force pkg (still needed with thsice).
206     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
207       + output_thsice.txt to test thsice & bulk_force pkgs.
208    o put back grid & coriolis monitor output.
209    checkpoint52b_pre
210    
211    o call "do_the_model_io" at the beginning (=> dump initial state)
212    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
213    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
214      (need info on NUMBER_OF_PTRACERS)
215    o missing PTRACERS headers in some routines
216    o default tamc.h in pkg/autodiff supposed to crash
217      to ensure proper customization
218    
219    checkpoint52a_post
220    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
221      - moved surfaceTendencyTice from pkg/seaice to main code
222      - subroutine FREEZE_SURFACE now limits only surface temperature
223        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
224        => new output.txt for global_ocean.cs32x15 & global_with_exf
225      - keep the old version of FREEZE for backward compatibility;
226        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
227      - corresponding modifs for TAF directives
228    o added surface flux output variables to TIMEAVE_STATVARS
229    o time-averaged output for pkg/ptracers
230    o fix problem with ECCO-related divided adjoint
231      snapshot file was missing some ad-variables,
232      but no warning issued by TAF
233    
234    checkpoint52a_pre
235    o some bug fixes for #undef REAL4_IS_SLOW
236    
237    checkpoint52 = ecco_c52_e35
238    o after testing adjoints of checkpoint51u_post
239    
240    checkpoint51u_post
241    o this is the post-merge tag of the ecco-branch
242      (needs another clean checkout and re-testing)
243    o various natl_box_adjoint configs and results
244      but no input fields
245    o obcs adjoint not yet merged!
246    o adding ECCO global 1x1 and 2x2 degree configs
247    o updated/extended some store directives for seaice
248    o pkg/ecco now containes ecco-specific part of cost function
249    o top level routines the_main_loop, forward_step
250      supersede those in model/src/
251      previous input data.cost now in data.ecco
252      (new namelist ecco_cost_nml)
253    o in ctrl/ cleaned some cross-dependencies and updated CPP options
254    
255    checkpoint51t_post
256    o this is the pre-merge tag of the ecco-branch
257    
258    checkpoint51s_post
259    o cleanup: removed various obsolete #define-s
260    o pkg/grdchk
261      - renamed 'ph-grd 3' to 'grad-res'
262      - merged from ecco-branch
263        (remaining bug fixes for obcs gradient checks)
264      - additional high-precision output for testreport
265        (grep for 'precision_grdchk_result')
266    
267    checkpoint51r_post
268    o cleaned up or removed CPP_OPTIONS.h files
269    o updated results for some of the tests to reflect the new
270      optfiles (-ieee: -O0 instead of -O3)
271    
272    checkpoint51q_post
273    o cd_code:
274      - moved cd_scheme.F -> cd_code_scheme.F
275      - separate read_checkpoint from cd_code_ini_vars.F
276      - separated cd_code part from write_checkpoint
277      - updated AD_SOURCE, generated .flow
278      - added CD_CODE_VARS.h to the_main_loop
279      - Moving cd_code specific store dir.s to pkg/cd_code
280    o ctrl package totally restructured
281      - pack/unpack now optional and decoupled from
282        xx_/adxx_ I/O
283      - ctrl_pack/unpack cleaned
284        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
285      - confined inclusion of AD_CONFIG.h to where necessary.
286    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
287    
288    checkpoint51p_post
289    o create initial cd_code package
290      - WARNING: the initialization of fields within packages
291        is broken because INI_FIELDS (where READ_CHECKPOINT is
292        called) is called *before* PACKAGES_INIT_VARIABLES.
293        This seems to be backwards since
294        1) its important to initially zero the entire field including
295           the "halo" region
296        2) zeroing needs to be done *before* reading pickup info
297           and the pickup call might or might not happen in any
298           particular run
299      - this needs an overhaul for R2
300    o cleanup verification/*/code/GMREDI_OPTIONS.h
301    o cleanup testreport
302    
303    checkpoint51o_post
304    o bringing AD-related verif's up to date with genmake2
305      - carbon/
306      - global_ocean.90x40x15/
307      - hs.94.1x64x5/
308      - (front_relax/ )
309    o (more) consistent directory structure for AD-related verif.'s
310    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
311    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
312    o bug fix in find_alpha.F for MDJWF:
313      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
314        change rho -> rho-rhoConst
315      - replace call find_rho to find_rhonum
316    o initialisation of rFlx extended to full array (required by TAF)
317      and shifted to thermodynamics
318    o removed PTRACERS.h in ptracers routine
319    o added surfacetendencyPtr to S/R parameter list pracers_forcing
320    o Correcting initialisations for fVerU, fVerV.
321    o helping TAF to recognize dependency on kUp for
322      fVerU, fVerV
323    o Replacing delZ by delR in pkg/ctrl/
324    checkpoint51o_pre
325    
326    o undid all of cp51 pending some cleanups and discussion
327    o added the [#include "AD_CONFIG.h"] statement to all files that need
328       it for adjoint/tl #defines
329     o re-worked the build logic in genmake2 to support AD_CONFIG.h
330     o removed tools/genmake since it no longer works
331    
332    checkpoint51n_post
333    o modifications to make FREEZE flux visible to pkg/kpp
334      - moved surfaceTendencyTice from pkg/seaice to main code
335      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
336      - subroutine FREEZE now limits only surface temperature
337        (this means new output.txt for global_ocean.90x40x15,
338         global_ocean.cs32x15, and global_with_exf)
339    o added surface flux output variables to TIMEAVE_STATVARS
340    
341    checkpoint51n_pre
342    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
343    o added [#include "AD_CONFIG.h"] to all files that use the following
344      defines:
345      - ALLOW_ADJOINT_RUN
346      - ALLOW_TANGENTLINEAR_RUN
347      - ALLOW_ECCO_OPTIMIZATION
348    
349    checkpoint51m_post
350    o incorporating changes to get TAMC/TAF working in genmake2
351      - added new TAMC/TAF targets to the Makefile
352      - various cleanups related to package handling
353      - these changes should have no impact on the forward model
354    
355    checkpoint51l_post
356    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
357     - faster algorithm for cal_addtime.F
358     - higher precision arithmetic, where needed
359     - pkg/exf *startdate variables changed from calendar date to
360       model integration time
361    
362    checkpoint51l_pre
363    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
364    o enable to apply restoring on S & T only in a latitude band.
365    o update output (external_forcing_surf modif. change truncation errors)
366       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
367    
368    checkpoint51k_post
369    o change default to: useNHMTerms=.FALSE.
370     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
371       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
372     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
373        exp1, ideal_2D_oce
374     - change data file of oceanic exp (leave the results unchanged for now)
375       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
376    o set gravitySign automatically according to the vertical coordinate used
377      (and change sign: back to "logical" value: +1 when R increases downward)
378    o added an include barrier to the default CPP_OPTIONS.h and
379      removed the #include "PACKAGES_CONFIG.h" from it
380    o fix a bug in mom_fluxform (from chk51j_post)
381    
382    checkpoint51j_post
383    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
384    o adjusted some flow directives (dynamics, thermodynamics)
385    o added cubed-sphere case to test cost function
386    o heckpoint_lev?_directives.h now include
387      pkg-specific directives, whenever those are enabled.
388    o Moving pkg-specific flow directives to corresponding pkg
389      Moving pkg-specific differentiation list to corresponding pkg
390      Moving pkg-specific checkpoint-lev storing to corresponding pkg
391      ---> conventions are
392           - pkg_ad.flow
393           - pkg_ad_diff.list
394           - pkg_ad_check_lev?_dir.h
395    
396    checkpoint51i_post
397    o merge of the branch-genmake2
398      - knowingly breaks the older genmake
399      - automatic generation of all ALLOW_${PKG_NAME} defines
400      - new testreport supersedes older testscript
401    o large number of package inclusion and header cleanups
402    checkpoint51i_pre
403    
404    o new output for adjoin of global ocean vector invariant
405    o fix for checkpoint of thermodynamic seaice and bulk_force
406    o Steph gchem various cleanups
407    
408    checkpoint 51h_pre
409    o fixed some single quotes
410    o modify gchem pkg to be more versatile
411    o modifications to clean up dic pkg
412    o add pkg/cfc
413    
414    checkpoint51g_post
415    o provide links for ARPACK and ADM*TLM
416    o start removing verification/vero/
417    o update AD-related stuff
418      (in particular some IF-statements in model/src/ routines)
419    o adding to verification/global_ocean.90x40x15/ adjoint of
420      vector invariant setup
421    
422    checkpoint51f_post
423    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
424    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
425      of tracer Green's fucntions for ocean inversion project.
426    
427    checkpoint51f_pre
428    o Added on-the-fly spatial interpolation capability
429        "USE_EXF_INTERPOLATION" to pkg/exf.
430      - This is a temporary Cartesian-grid hack until
431        the super-duper ESMF coupler becomes available.
432      - See verification/global_with_exf/README for usage example.
433      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
434        flags and modified pkg/seaice accordingly.
435    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
436        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
437        non-local transport term.
438    
439    checkpoint51e_post
440    o pkg/mom_vecinv:
441      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
442      - add time-ave diagnostic of vorticity advection.
443    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
444    o atmospheric geopotential: - include water vapor effect;
445                                - use p^kappa in p* scaling.
446    o land pkg: read initial state from files.
447    o AIM : add stratospheric drag in the upper level
448    
449    checkpoint51d_post
450    o change function ILNBLNK (=> last non-blank char.) to return zero
451      (instead of the string length) when the string. char is empty
452    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
453    o modif's to restore TAMC compatibility
454      - avoid "_d" constructs in PARAMETER declarations
455      - avoid interrupting lines by comment lines
456    o Use cluster local disks for purely local I/O
457      vs. globally visible disks needed for ctrl stuff
458      (merged from ecco-branch)
459      - new active_file_loc... and mdsio_..._loc routines
460      - affected packages: autodiff, ctrl, grdchk, mdsio
461    
462    checkpoint51c_post
463    o introducing integer flag debugLevel
464      - debLevZero: suppress all output
465      - debLevA: standard
466      - debLevB: equivalent to current debugMode=.TRUE.
467    o introducing pathname variable mdsioLocalDir for mdsio
468      that can be specified at runtime
469      (relevant for cluster I/O to local disk)
470    `
471    >>>checkpoint51b_post
472    adjoint of ptracers
473    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
474    o extended state in checkpoint_lev?, etc.
475    o alternative ctrl/cost with tr1 or ptracer
476    o new comlev1_bibj_ptracers
477    o new ptracers.flow
478    o made ptracers_forcing same as external_forcing_s
479    o added verification for adjoint with ptracers
480      - adm. grdchk fail so far
481      - tlm. grdchk OK
482      - checked tapelev/comlev recomputations: OK
483    <<<checkpoint51b_pre
484    
485    checkpoint51a_post
486    o added code for biogeochemistry package
487      - new pkgs: dic, gchem
488      - new subroutine in ptracers
489    o modify code for biogeo packages
490      - in model/src and pkg/ptracers
491    
492    checkpoint51
493    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
494      - autodiff, ctrl, exf, grdchk, seaice
495      kept separate packages
496      - cost, ecco, obcs
497    o updating verification/internal_wave, verification/lab_sea
498      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
499    
500    checkpoint50i_post
501    o Preparing next differentiable checkpoint and sync
502      of MAIN vs. ecco-branch
503      - 1st step: this one is differentiable
504      - 2nd step: next(! not this) checkpoint will have updated packages
505                  from ecco-branch)
506    
507    checkpoint50h_post
508    o new package "land": provide surface BC for AIM.
509    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
510    o AIM: use true log-P extrapolation for near surface temp (= as in
511        F.Molteni paper) ; update aim.5l_cs output.
512    o New variable in PARM03 for more flexible pickups
513    o somewhat cleaned package initialisation sequence for
514      ctrl/ cost/ ecco/ in packages_... routines
515    
516    checkpoint50g_post
517    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
518      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
519      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
520        made the default because of faster convergence than ADI
521    
522    checkpoint50f_post
523    o exf totally restructured
524      - replaced all exf_set_ routines by one generic exf_set_gen.F
525        and made sure it's still differentiable
526      - split exf_getffields.F into new exf_bulkformulae.F
527      - exf_inscal_/exf_outscal_ suffixes consistent with field names
528      - updated adjoint/makefile and relevant verif. accordingly
529    
530    checkpoint50f_pre
531     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
532          + change Evap over land. (update aim.5l_cs output)
533     o added missing .cvsignores and made uniform across expts
534     o changed configuration of tidal_basin_2d expt
535     o added pkg/debug functions for tracing code in fatal crashes
536     o tidied pkg/monitor to use MONITOR_OPTIONS.h
537     o new fn in pkg/monitor to stop model if solution grows too big
538     o removed lots of single quotes from comments
539    
540    checkpoint50e_post
541    o make KPP work with PTRACERS
542     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
543       nearly a copy of kpp_transport_s
544     - there is no analogue to SurfaceTendencyS, so I have to use
545       gPtr(of the surface layer) instead
546    o add a new platform SunFire+mpi (SunFire 15000) to genmake
547    checkpoint50e_pre
548    
549    checkpoint50d_post
550    o change kpp output from multiple-record state files to single-record state
551      files analogous to write_state.F
552    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
553      analogous to the cg2d-related output.
554    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
555      so that writing to internal file fn (with length 512) fails.
556    checkpoint50d_pre
557    
558    checkpoint50c_post
559    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
560    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
561    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
562    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
563    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
564    
565    checkpoint50c_pre
566    Merging from release1_p13:
567    o bug fix for pkg/seaice dynamic solver
568    o Added SEAICE_initialHEFF to pkg/seaice
569    
570    checkpoint50b_post
571    o store u*,v* in gU,V instead of in guNm1,gvNm1
572    o in order to put the momForcing out of the Adams-Bashforth:
573      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
574      to timestep.F
575    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
576    o re-generate output for highly sensitive test-exp:
577       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
578    
579    checkpoint50b_pre
580    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
581    o corrected CPP option mismatch in exf_Bulk... functions for case
582      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
583    
584    checkpoint50a_post
585    o Bug fix for merging between c50 and KPP.
586      ikey was passed from thermodynamics to kpp_calc via
587      common block rather than being recomputed in kpp_calc,
588      in contradiction with new key itdkey.
589      New key ikppkey created, and tamc.h headers updated.
590    
591    checkpoint50
592    - 2nd step of merge with ecco-branch:
593      merge changes in ecco-branch back into main trunk
594    - bug fix in find_alpha
595    - more storing in gmredi_calc_tensor.F, kpp_routines.F
596    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
597    - merged some sliced AD support routines
598    
599    checkpoint49
600    merged from ecco-branch:
601    o exf:
602      - Enable initialisation of forcing fields to constant
603        (runtime) values.
604      - in exf_getffields.F
605        Reduce i-/j-loop to interior domain, discarding overlaps.
606        That also fixes wrong TAF-key computations for key_1, key_2
607        with bulf formulae.
608      - exf_init.F modify #ifdef for exf_init_evap
609      - exf_getffieldrec.F, ctrl_getrec.F
610        The following INT-usages are not safe:
611          fldsecs  = int(fldsecs/fldperiod)*fldperiod
612          fldcount = int(fldsecs/fldperiod) + 1
613        and were modified.
614    o autodiff: checkpoint_lev...
615      - updated storing for bulk formulae (some arrays were missing)
616      - added state for seaice package
617      - synchronized with main branch
618    o DIVA:
619      Modif.s in
620      - the_main_loop.F
621      - the_model_main.F
622      and added cost_final_restore.F cost_final_store.F
623      o With these changes, it is possible to fully separate
624        the first forward run to compute the cost function (mdthe_main_loop)
625        and adjoint runs over individual DIVA intervals (adthe_main_loop)
626        into separate model executions.
627        This enables better tuning of DIVA to given queue sizes.
628      o Loss of cost function value in consecutive DIVA runs is
629        fixed by storing to 'costfinal' file.
630      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
631        beginning/end of adjoint integration is accounted for.
632      The current changes apply to TAF-1.4.26.
633      TAF has one remaining bug, requiring one manual change
634      (see MITgcm manual).
635    o cal: synchronized between MAIN and ecco-branch
636    
637    checkpoint48i_post
638    o Changes to restore differentiability of code w.r.t. previous tag
639      (mostly adding new routines to make list and replacing
640      pressure by totPhiHyd).
641    o Updated and merged grdchk package
642      - has both ADM and TLM checks
643      - works for single- and multi-proc.
644      - output cleaned
645      - worked successfully for parallel DIVA
646    o genmake:
647      - Adding -platform=SP4
648      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
649    o Modif. for DIVA:
650      ctrl_unpack should not be called in intermediate DIVA interval.
651      (similar thing would apply for active files such as
652      tbar, sbar, psbar, which should not be reinitialised;
653      only relevant for ecco-branch)
654    
655    checkpoint48h_post
656    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
657    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
658    o Added SEAICE_initialHEFF to pkg/seaice
659    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
660    
661    checkpoint48g_post
662    --- EOS:
663    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
664      store total Potential in totPhyHyd for diagnostics & EOS.
665    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
666    --- Pressure/geopotential gradient:
667    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
668    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
669      ( changes results of global_ocean_pressure )
670    o NLFS + z-coord.: add eta*Rho' contribution.
671    o accurate phiHyd when using interface-W at the middle between 2 centers
672     ( changes results of ideal_2D_oce )
673    o includes r* 2nd term in potential gradient.
674    
675    checkpoint48f_post
676    Merging from release1_p12:
677    o Modifications for using pkg/exf with pkg/seaice
678      - improved description of the various forcing configurations
679      - added basic radiation bulk formulae to pkg/exf
680      - units/sign fix for evap computation in exf_getffields.F
681      - updated verification/global_with_exf/results/output.txt
682    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
683      (SBO) core products, including oceanic mass, center-of-mass,
684      angular, and bottom pressure (see pkg/sbo/README.sbo).
685    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
686      to avoid negative values in shallow regions.
687      - updated verification/natl_box/results/output.txt
688      - updated verification/lab_sea/results/output.txt
689    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
690    o Added useSingleCpuIO option (see PARAMS.h).
691    o Updated useSingleCpuIO option in mdsio_writefield.F to
692      work with multi-field files, e.g., for single-file pickup.
693    o pkg/seaice:
694      - bug fix in growth.F: QNET for no shortwave case
695      - added HeffFile for specifying initial sea-ice thickness
696      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
697    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
698      kpp_transport_t.F, forward_step.F, and the_main_loop.F
699    o pkg/seaice:
700      - adjoint-friendly modifications
701      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
702    
703    checkpoint48e_post
704    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
705    o dynamics: change definition of computational domain & adapt mom_fluxform
706      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
707    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
708        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
709        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
710        global_ocean.90x40x15 global_with_exf global_ocean_pressure
711        inverted_barometer solid-body.cs-32x32x1
712      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
713    
714    checkpoint48d_post
715    o in preparation for r*:
716     a) use pre-computed gradient of hydrostatic potential:
717        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
718     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
719        => affects results of glob_oce_pressure (different truncation error)  
720      update output.txt of ideal_2D_oce & global_ocean_pressure
721    
722    checkpoint48d_pre
723    o in preparation for r*:
724      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
725      pass the 2 comp. of the grad. as arguments to momentum S/R.
726      but for the moment, only used if it does not change the results.
727    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
728    
729    checkpoint48c_post
730    Modifications in treatment of initial flux forcing controls
731    to avoid extra storing of flux fields.
732    
733    checkpoint48c_pre
734    o Added tidal_basin_2d experiment (currently 1D!)
735    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
736    
737    checkpoint48b_post
738    o r* coordinate added in #ifdef NONLIN_FRSURF block.
739     (modification to pressure gradient not yet implemented)
740    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
741      (for U & V) that are used for vertical advection of momentum.
742    
743    checkpoint48a_post
744    o In preparation for r*, use temp. array to compute vertical transport
745       in flux-form momentum pkg. => change results of few test-exp.
746      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
747                        lab_sea, natl_box & plume_on_slope
748    
749    checkpoint48
750    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
751    
752    checkpoint47j_post
753    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
754    o moved adexch from forward_step to addummy_in_stepping
755    o added exch in ctrl_map_...
756    o aveFreq.=0. at end of cost_final to avoid overwrite in
757      reverse checkpointing loop
758    o Yet more changes in gmredi:
759      * adgmredi_calc_tensor
760        avoiding all recomputation of gmredi_slope_limit
761      * adgmredi_x/y/rtransport
762        added flag for excessive storing to avoid recomp. of
763        u/v/rtans, dTdx/y/z
764        -> this is not really necessary and very memory-consuming
765      * adgmredi_slope_psi:
766        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
767      * gmredi_slope_limit
768        re-activated full calculation of taperfct for case 'ac02'
769    o updating verification/ adjoints of carbon, global_ocean.90x40x15
770    
771    checkpoint47i_post
772    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
773    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
774      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
775    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
776    o gmredi: fix few bugs.
777    
778    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
779    This will be a good checkpoint to plug into the ecco-branch.
780    o few modif.'s to get latest version adjointed
781      (mainly kick out code in ini_linear_phisurf)
782    o modif's to run adjoint with exactConserv
783    o case GM_BOLUS_ADVEC should be cleaned
784      S/R gmredi_slope_psi should be cleaned
785    o verification/carbon now has exactConserv=.TRUE.
786    
787    checkpoint47g_post
788    o time-average AIM output: becomes independent from statvars time-average
789      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
790    o After TAF bug fix:
791      Tested adjoint of gmredi package.
792      Tests were done with checkpoint47 rather than with latest
793      checkpoint47f_post since the latter is broken for the adjoint
794      verification/carbon/ contains both ADM and TLM gradient checks.
795    Here they are, before they get changed/lost/stolen.
796    Mostly modif.'s to fix numerical sensitivities.
797    Gradient checks OK for
798    - GM_taper_scheme:
799      * clipping
800      * ac02
801      * linear
802      * glw91
803      * dm95
804      * ldd97
805    - GMREDI_OPTIONS:
806      * GM_VISBECK_VARIABLE_K
807      * GM_NON_UNITY_DIAGONAL
808      * GM_EXTRA_DIAGONAL
809      * GM_BOLUS_ADVEC
810    in conjunction with data.gmredi parameters to be checked in
811    in a few minutes under verification/carbon/code/
812    
813    checkpoint47f_post
814    Merging from release1_p10:
815    o modifications for using pkg/exf with pkg/seaice
816      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
817        and SEAICE_EXTERNAL_FLUXES
818      - pkg/exf CPP options EXF_READ_EVAP and
819        EXF_NO_BULK_COMPUTATIONS
820      - usage examples are Experiments 8 and 9 in
821        verification/lab_sea/README
822      - verification/lab_sea default experiment now uses
823        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
824    
825    checkpoint47e_post
826    o created a tag prior to creating a branch
827    
828    checkpoint47d_post
829    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
830      at the bottom boundary had an erroneous half slip boundary condition
831    o added bottom drag and no slip boundary condition capabilities to
832      oceanic pressure coordinates code
833    o added new verification experiment global_ocean_pressure, this experiment is
834      also described in the tutorial section of the manual
835    checkpoint47d_pre
836    
837    checkpoint47c_post
838    o Added a verification experiment for a global cubed-sphere ocean run
839      -  verification/global_ocean.cubed32x32x30
840      -  uses pkg/therm_seaice and pkg/bulk_forcing
841    
842    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
843    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
844      when using P-coordinate; only implemented for atmospheric config.
845    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
846      NOTES: requires option NONLIN_FRSURF to be "#define".
847    o update advect_xz/results/output.txt (left from checkpoint44g_post)
848    
849    checkpoint47b_post
850    Merging from release1_p9:
851    o pkg/seaice
852      - removed GOTO's and added taf directives
853      - double precision constants to reduce the g77 (Linux)
854        to F77 (SGI) differences reported in release1_p8
855    o tools/genmake
856      - added SGI options
857    o verification/testscript
858      - updated to that of checkpoint47a_post
859    o verification/global_ocean.90x40x15/input/eedata
860      - modified for SGI f77 compatibility
861    o verification/lab_sea
862      - added description of sea-ice model
863      - added missing matlab routines
864      - added test of thermodynamics parallelization
865    
866    checkpoint47a_post
867    o new pkg: aim_v23
868     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
869       for now, keep the same surface forcing as before.
870     - Part-Cell implemented into AIM; check that Heat & Water are conserved
871     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
872     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
873    o add diagnostic of surface correction term in monitor output
874    
875    o bulk_force and therm_seaice
876    - Two packages:  bulk_force (Bulk forcing)
877      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
878    - Earlier integration from Stephaine Dutkiewicz
879      and Patrick Heimbach.
880    - Two ifdef statements for compile time,
881       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
882    
883    checkpoint47
884    differentiable version of checkpoint46n_post
885    o bug fix in quasihydrostaticterms
886    o * "clean" adjoint code (in terms of extensive recomputations)
887        can now be obtained for all GMREDI options (i.e. for
888        - GM_VISBECK_VARIABLE_K
889        - GM_NON_UNITY_DIAGONAL
890        - GM_EXTRA_DIAGONAL
891        - GM_BOLUS_ADVEC )
892      * However, wrong gradient check problem remains unsolved.
893      * New CPP options have been introduced for different
894        tapering schemes
895    o external_fields_load now part of differentiation list
896    o pressure needs multiple storing;
897      would be nice to have store_pressure at beginning or
898      end of forward_step, e.g. by having phiHyd global (5-dim.)
899      (NB: pressure is needed for certain cases in find_rho,
900      which is also invoked through convective_adjustment).
901    o recomputations in find_rho for cases
902     'JMD95'/'UNESCO' or 'MDJWF' are OK.
903    o #define ATMOSPHERIC_LOADING should be differentiable
904    o ini_forcing shifted to begining of initialise_varia
905    o Incorporating QNVS line search routines into MITgcm
906      (this is separate code, and therefore not under pkg)
907      lsopt/, optim/
908    o Updated verification/carbon/
909      - #define GM_VISBECK_VARIABLE_K
910      - GM_taper_scheme    = 'ldd97'    
911    
912    checkpoint46n_post
913    Merging from release1_p8:
914    o verification/natl_box:
915      updating new external_fields_load routine
916    o New package: pkg/seaice
917      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
918      The sea-ice code is based on Hibler (1979-1980).
919      Two sea-ice dynamic solvers, ADI and LSR, are included.
920      In addition to computing prognostic sea-ice variables and diagnosing
921      the forcing/external data fields that drive the ocean model,
922      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
923      The implied surface heat flux is then stored in variable
924      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
925      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
926      non-local transport term.  Because this call precedes model
927      thermodynamics, temperature under sea-ice may not be "exactly" at
928      the freezing point by the time theta is dumped or time-averaged.
929      N.B.: fairly large differences in accuracy occur across
930            different platforms/compilers; comparison between
931            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
932            generated output gives:
933       T           S           U           V
934      C D M    c        m  s        m  s        m  s        m  s
935      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
936      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
937      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
938    
939      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
940    o GAD:
941      - generated new common blocks to account for call of
942        same gad routines with differing traceridentities
943        (needed to modify tracerIdentity indices in GAD.h)
944      - generated separate common blocks for case useCubedSphereExchange
945        (Department of Futurology)
946      - parameter lists to gmredi_?transport: added tracerIdentity
947      - added new key indices to tamc.h
948    o external_fields_load:
949      - added this routine to TAF list
950      - needed to make some common blocks global and additional storing
951        along the same lines as exf package (checkpoint_lev?_directives.h)
952    o exf:
953      updated external forcing package
954      - bug fixes carried over from ecco-branch
955        (missing OBCS_OPTIONS.h in two routines)
956      - enable easy to use "no forcing".
957      - added exf I/O for atmospheric loading
958      - added exf I/O for runoff data
959      - transfered scaling between exf <-> MITgcm to exf namelist
960    o Adding new verification experiment global_with_exf.
961      This verification experiment is almost identical to the
962      global_ocean.90x40x15 experiment, except that it uses
963      the exf (and cal) package instead of the
964      external_fields_load routine (cf README file).
965    
966    checkpoint46m_post
967    o modified testscript to return -- when there are no lines of "%MON" output
968    o added new flag "quasiHydrostatic" for QH mode
969      and new routine quasihydrostaticterms()
970    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
971      New routine: mom_u_coriolis_nh()
972    o fixed sign of non-hydrostatic metric terms in u and v equations.
973      Depend on correct sign of gravitySign.
974    o added work.pc* to .cvsignore in aim directories using ifc
975    o introduced flag for controllin non-hydrostatic metric terms
976    o removed gravitySign from PARM04
977    o switched to g77/ifc from pgf77 in aim experiments
978    
979    checkpoint46l_post
980    o made convective adjustment work with pressure coordinates:
981     - changed the direction of k-loop in convective_adjustment.F for the
982       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
983     - adjusted the reference pressure k-index in convective_adjustment.F
984     - adjusted the convection condition in convect.F (in analogy to
985       calc_ivdc.F)
986     - convective_adjustment no longer computes anything on the halos
987     - removed the warnings about negative salinity from find_rho.F and
988       find_alpha.F; instead the new routine look_for_neg_salinity, called
989       at the beginning of find_rho, find_alpha, and find_beta, does a
990       check of the entire slice, if CPP-option
991       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
992    checkpoint46l_pre
993    
994    checkpoint46k_post
995    o fixed the verification/global_ocean.90x40x15 experiment:
996     - new bathymetry (the world according to A., JMC, and M.)
997     - new initial fields and forcing fields (*.bin files)
998     - new POLY3.COEFFS (for the next release one should switch to a full
999       equation of state: JMD95P or MDJWF)
1000     - fixed several errors and redundancies in the data file
1001     - experiment uses looped cells
1002     - added matlab directory with diagnostic scripts for plotting of output
1003    
1004    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1005     - read AIM physics parameters from a file (data.aimphys)
1006     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1007    
1008    checkpoint46j_post
1009    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1010    o move wVel computation at the end of the time step, in S/R integr_continuity
1011    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1012    o update timeave pkg for wVel diagnostic.
1013    checkpoint46j_pre
1014    
1015    checkpoint46i_post
1016    o Clean up AIM package (and keep the results unchanged):
1017      include CPP_OPTION and use IMPLICT NONE in all routines ;
1018      declare all the variables _RL ; use _d 0 for all numerical constants.
1019      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1020    
1021    checkpoint46h_post
1022    o cleaned up the use of rhoNil and rhoConst.
1023      - rhoNil should only appear in the LINEAR equation of state, everywhere
1024        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1025        and the dynamical equations are all divided by rhoConst
1026    o introduced new parameter rhoConstFresh, a reference density of fresh
1027      water, to remove the fresh water flux's dependence on rhoNil. The default
1028      value is 999.8 kg/m^3
1029    o cleanup up external_forcing.F and external_forcing_surf.F
1030      - can now be used by both OCEANIC and OCEANICP
1031    checkpoint46h_pre
1032    
1033     Added code to convert surface volume flux (fresh water) into
1034     a mass flux when using P coordinates in the ocean (OCEANICP).
1035     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1036    
1037    checkpoint46g_post
1038    o Include a new diagnostic variable phiHydLow for the ocean model
1039      - in z-coordinates, it is the bottom pressure anomaly
1040      - in p-coordinates, it is the sea surface elevation
1041      - in both cases, these variable have global drift, reflecting the mass
1042        drift in z-coordinates and the volume drift in p-coordinates
1043      - included time averaging for phiHydLow, be aware of the drift!
1044    o depth-dependent computation of Bo_surf for pressure coordinates
1045      in the ocean (buoyancyRelation='OCEANICP')
1046      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1047        Theta, Salinity, and Pressure in the parameter list. This routine is
1048        presently contained in find_rho.F. This routine does not give the
1049        correct density for 'POLY3', which would be a z-dependent reference
1050        density.
1051    o cleaned up find_rho
1052      - removed obsolete 'eqn' from the parameter list.
1053    o added two new verification experiments: gop and goz
1054      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1055    checkpoint46g_pre
1056    
1057    checkpoint46f_post
1058    o Enable tangent linear (forward mode) gradient checks:
1059      - extended active file handling to g_... files
1060      - added TANGENT_SIMULATION to theSimulationMode
1061      - extended grdchk package accordingly
1062    o added tangent linear setup in verification/carbon/code_ftl
1063    o added adjoint setup in verification/front_relax/code_ad
1064    
1065    checkpoint46e_post
1066    o Added new equation of state -> MDJWF
1067      - EOS of McDougall et al., 2002, JAOT, submitted
1068      - caveat: the equation of state is only valid for a smaller (more
1069        realistic?) range of values than JMD95P/Z and UNESCO
1070      - added masks to the calculation of pressure in store_pressure
1071      - added more check values for density in check_eos (ini_eos.F), some of
1072        the old check values are out of the range of the MDJWF-eos, so don't
1073        expect perfect matches for those
1074    checkpoint46e_pre
1075    
1076    checkpoint46d_post
1077    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1078      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1079      case of pressure coordinates. eosType='JMD95Z' in
1080      combination with buoyancyRelation='OCEANICP' now causes an error.
1081    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1082      in find_alpha/beta.
1083    checkpoint46d_pre
1084    
1085    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1086      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1087    
1088    checkpoint46c_post
1089    o Changes necessary for ocean in p-coordinates
1090     -  Added new buoyancy relation = 'OCEANICP'
1091     -  Added new parameters = gravitySign (this used to be contained inside
1092        the factor dRdZ which I added when we first switched to R coordinates).
1093     X GM/Redi is not compatible (yet)
1094     X bottom drag and no-slip need to be debugged.
1095    checkpoint46c_pre
1096    
1097    checkpoint46b_post
1098    o Added new equation of state -> JMD95Z and JMD95P
1099      - EOS of Jackett and McDougall, 1995, JAOT
1100      - moved all EOS parameters into EOS.h
1101      - new routines ini_eos.F, store_pressure.F
1102    o Added UNESCO EOS, but not recommended because it requires
1103      in-situ temperature (see JMD95)
1104    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1105      unesco.f to be used with POLY3
1106    checkpoint46b_pre
1107    
1108    checkpoint46a_post
1109    o Added (atmospheric) pressure loading
1110      - new field in FFIELDS.h, etc...
1111      - new cpp flag ATMOSPHERIC_LOADING
1112    o Changed hFacC to _hFacC in calc_phi_hyd.F
1113    o Added SHORTWAVE_HEATING to some files for consistency
1114    checkpoint46a_pre
1115    
1116    checkpoint46
1117    further merges from release1_p5
1118    o new ctrl package
1119      - adopted from ECCO environment to enable optimization
1120      - added Eliassen Palm fluxes to controls
1121    o added Eliassen Palm flux controls to gradient check package
1122    o cost package
1123      - Compatible with new ctrl package
1124      - added Eliassen Palm cost hooks
1125      - modif's of existing cost functions
1126    o Adjoint-related bug fixes in kpp:
1127      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1128      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1129    o autodiff package
1130      - flow directives:
1131        + new for S/R do_the_model_io
1132        + enhanced for S/R checkpoint
1133        + new gmredi.flow
1134      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1135        disable adcommon.h/g_common.h by default.
1136      - fixed problem for adjoint of global_max
1137    o modified verification/carbon/
1138    o New setup for adjoint of global_ocean
1139    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1140    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1141    o incorporated hooks for sponge layer code (external_forcing.F)
1142    
1143    checkpoint45d_post
1144    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1145    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1146      (affects plume_on_slope "cg2d" output)
1147    o add new parameter deltaTfreesurf for free-surface time stepping
1148    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1149    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1150    o change phiMin in exp1 (to agree with documentation)
1151    o add new flags:
1152     - T,S forcing inside/outside Adams-Bashforth
1153     - turn off temp,salt advection and/or forcing
1154     - for each tracer, define internal flag for multiDimAdvection & A-B
1155    o monitor: change definition of KE to check conservation of Energy
1156    
1157    checkpoint45c_post
1158    o Removed f90 comments ("!")
1159    o Modified initialisations to enable exf package for MITgcm
1160      (without invoking ECCO_PACKAGE).
1161    o modifications to gradient check package (Martin Losch)
1162      - enable centered differences
1163      - modified format of standard output
1164    
1165    checkpoint45b_post
1166    o cleaned exchange calls in cg2d
1167    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1168    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1169      to configure barotropic setup (Martin Losch)
1170    o moved some initialisations within bi,bj loop in dynamics
1171      (TAF flow dependency)
1172    o in initialise_varia, moved call packages_init_variables
1173      before convective_adjustment_init
1174      (corresponding adjustment of TAF tape initialisation).
1175    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1176    
1177    checkpoint45a_post
1178    o compute Rho over the whole domain (extend iMin,jMin indices)
1179    o specific exchange for X-slice domain (case Ny=1)
1180    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1181    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1182    
1183    checkpoint44h_post = checkpoint45
1184    o Fix to restore differentiability:
1185      place at which packages_init_variables is called in
1186      initialise_varia is crucial for reverse control flow.
1187    o modifications in GMRedi to enable stable adjoint
1188      (corresponding modif's in thermodynamics, dynamics)
1189    o added missing hook for sponge layer code in external_forcing
1190    o modified test cost functions
1191    o storing in gad_advection (plus removal of write(0,*)!
1192    o missing headers TR1.h added in convective_adjustment routines
1193    o errorMessageUnit set non-equal zero in eeboot
1194      (conflict on some platforms, e.g. IBM SP3)
1195    o modified carbon verif.
1196    
1197    checkpoint44h_pre
1198    o vertical grid option: allow to put the Interface at the middle between
1199      2 cell-centers ; replace delZ in pkg/kpp by drF.
1200    o GM Advective form: Tracers are advected using the residual transport (=
1201      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1202    
1203    checkpoint44g_post
1204    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1205      results) ; ifdef missing in thermodynamics.F
1206    
1207    checkpoint44f_pre,checkpoint44f_post
1208    o added PTRACERS package
1209      This allows an arbitrary number of passive tracers to be integrated
1210      forward simultaneously with the dynamicaly model.
1211      + Implemented so far:
1212        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1213        - I/O and checkpointing
1214        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1215      + Not implemented so far:
1216        - KPP
1217        - OBCS
1218      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1219        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1220        line in data.pkg.
1221      + This package is disabled by default since it increases storage.
1222    
1223    
1224    o testscript: added -cleanup option
1225    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1226                 b) enable to filter 2D fields.
1227    
1228    checkpoint44e_pre,post
1229    o re-wrote convective adjustment to use pre-calculated weights
1230      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1231      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1232      Original calls to convect() still in place.
1233    
1234    chkpt44d_pre,post
1235    o added missing EXCLUDE_MONITOR flags
1236    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1237      (incompatible typ in MIN/MAX expressions caused problems
1238      on IBM SP3)
1239    o in genmake added variable MAKEDEPEND
1240      plus resetting for case SunOS
1241    o added timer_stats.c routine for IBM SP3
1242    o removed variables in dynamics
1243    !!! I forgot to create tag chkpt44d_pre !!!
1244    !!! But chkpt44d_pre = chkpt44c_post    !!!
1245    
1246    o real fresh water flux implemented with non-linear free-surface.
1247    
1248    chkpt44c_pre,post
1249    o few fix (mask in shap_s2, EmPmR in external_field_load,
1250      USE_NATURAL_BCS in solve_for_P);
1251    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1252    
1253    checkpoint44b_pre/_post
1254    o merge of relevant stuff from the ecco-branch:
1255      - genmake: removed $S64 overwrite for case SunOS
1256      - pkg/exf: update and corrections for field swapping and obcs
1257      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1258                  harmonized between ECCO and MITgcm
1259      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1260                      updated checkpointing_lev... lists for obcs
1261      - model/src: minor changes in forward_step, plot_field
1262                   added directive for divided adjoint in the_main_loop
1263      - pkg/mdsio: added mdsio_gl_slice
1264    
1265    o check parameters & config (chkpt44a_pre,post)
1266    o OBC and NonLin_FrSurf.
1267    
1268    checkpoint44
1269    o fix bug in mom_vi_del2uv
1270    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1271    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1272    o update AIM experiments (NCEP input files)
1273    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1274    o added some stuff for AD
1275    
1276    checkpoint43
1277    o added two new advection tests
1278    o added global 4x4 degree ocean test
1279    o added test of H&S94 with free surface on cube
1280    o some final mods for gradient check, adjoint,...
1281    
1282    checkpoint42
1283      Fixed AD-related problems:
1284    o Store directives up-to-date with re-arranged Adams-Bashforth
1285      (mainly thermodynamics.F)
1286    o New store directives for multi-dim. advection schemes
1287      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1288      * new common block and key passkey
1289      (mainly gad_advection.F)
1290    o Modified store directives for split of dynamics/thermodynamics
1291      for the case ALLOW_KPP
1292    o Cleaned argument list for timestep_tracer.F
1293    
1294    checkpoint41
1295    o re-formatted/added comments in prologues of key subroutines
1296      to work with protex
1297    
1298    checkpoint40
1299    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1300    o added FLT (floats) package from Arne along with demo. experiment
1301    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1302      implementation of forward-in-time forcing terms
1303    o more mods for non-linear free-surface including new variable
1304    o modified multi-dim method to work on cube
1305    o bug fix in KPP (from DM)
1306    
1307    checkpoint40pre9
1308    o added DST advection schemes
1309    o fix MPI bug on SGI's
1310    o modifications for non-linear free-surface
1311    o fixed conditionals for fixed flow/passive tracer only mode
1312    o added tension/strain form of stress tensor
1313    o changes to commenting of arguments for TAF/TAMC
1314    o added/updated many matlab scripts
1315    o added multi-dimensional advection method for tracers
1316      
1317    checkpoint40pre8
1318    o new package rw/
1319      Added method for dumping intermediate local arrays:
1320      mdsio_writetile - same as mdsio_writefield except works from inside
1321                        bi,bj loop
1322      mdsio_writelocal - same as mdsio_writetile except works for local
1323                         arrays
1324      write_local_r? - higher-level wrapper for mdsio_writelocal
1325      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1326      Example given at end of mom_vecinv.F that dumps some local arrays.
1327    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1328      control flux-form versus vector invariant code.
1329      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1330      or genmake -DISABLE ...
1331    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1332      (additional storing is now needed for case vecinv;
1333      currently nothing implemented to switch this storing off
1334      in case fluxform is used since no CPP flag available).
1335    
1336    checkpoint40pre7
1337    o bug fix in dynamics.F
1338      calc_viscosity called before k=1,Nr loop.
1339    o added some #ifdef's ALLOW_PASSIVE_TRACER
1340    o cleaned initialisations in ctrl_map_ini
1341      related to TAF
1342    
1343    checkpoint40pre6
1344    o split dynamics into thermodynamics & dynamics
1345    o corresponding split of calc_diffusivity into
1346      calc_diffusivity, calc_viscosity
1347      (kpp_calc_diff, kpp_calc_visc).
1348    o Added diffkr, kapgm to control variables
1349    o bug fix in gmredi_slope_limit for ldd97
1350    
1351    checkpoint40pre5
1352    o proper initialization of Adams-Bashforth time stepping
1353      + uses forward step for very first step of model (iter=0)
1354    o re-generated *all* output since almost all output is modified by this
1355      change (sorry but we've been putting this one off for about 2 years)
1356      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1357        *not* regenerated since they are already out of date and I don't
1358        want to create the impression that they are suddenly working.
1359    o removed KAP stuff for DEC's
1360    o modified/added many .cvsignore files in */code and */input
1361    o added new expt "solid-body.cs-32x32x1"
1362      + this uses an alternative form of ini_curvilinear_grid.F which
1363        is not necessarily any better than the current one...
1364    
1365    checkpoint40pre4
1366    o added re-initialisations of utrans,vtrans,rtrans in
1367      calc_common_factors which are crucial for TAF.
1368    o extended iMin,jMin range for calc_common_factors,
1369      calc_diffusivity
1370    o added option ALLOW_PASSIVE_TRACER
1371    o a few minor updates and fixes
1372    
1373    checkpoint40pre3
1374    o created calc_gtr1.F for gad package
1375    o split the_main_loop and re-introduced forward_step
1376    o some recomputations of nIter0 for TAMC
1377    
1378    checkpoint40pre2
1379    o Updated to latest branch of AJA, JMC
1380    o Added gradient check package
1381    o Added routines for passive tracer handling
1382    o Added carbon sequestration sensitivity experiment
1383    
1384    checkpoint39
1385     o Modifications and fixes to support TAMC
1386       (mainly missing or wrong directives)
1387     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1388       in addummy_in_stepping
1389     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1390     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1391     o Included following packages:
1392       cal: calendar
1393       exf: external forcing
1394       ecco: essential routines to control use of cal, exf
1395             (NB: this is not the full ECCO environment)
1396     o disabled some packages by default in genmake
1397    
1398    checkpoint38
1399     o see notes_c37_adj.txt
1400     o corrected wrong layer index in external_forcing_t
1401     o replaced the_main_loop/forward_step by the_main_loop
1402     o removed forceoutput from write_state
1403       (replaced criteria for initial/final state)
1404     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1405    
1406    checkpoint37
1407     o mdsio.F routine split and packaged in pkg/mdsio
1408       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1409        used unless genmake -disable=mdsio)
1410     o allow a more precise surface-geopotential gradient for the atmosphere
1411       taking into account the change in space of Alpha (=1/rho) at the surface.
1412     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1413       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1414     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1415       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1416       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1417     o Time-Average diagnostics defined as a pseudo package "timeave".
1418     o pickup files : old pickup (before c35) did not work with new code (c35
1419       and after) unless activating 2 commented lines in initialise-varia.
1420     o Non-Hydrostatic pickup file Pb fixed.
1421     o bug with Rigid-lid version (since c35) fixed.  
1422    
1423    checkpoint36
1424     o implement Crank-Nickelson barotropic time-stepping
1425     o recover Time-Average diagnostics
1426     o fix Pb in checkpoint (PR#19)
1427     o AIM become a standard package ; clean unused CPP_kees
1428    
1429    checkpoint35
1430     o subtantial rewrite of dynamics.f
1431     o allows staggered time-stepping
1432     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1433     o added bottom drag (linear + quadratic)
1434    
1435    checkpoint34
1436     o Modified exchange routines for correct reverse simulation.
1437     o Added verification output to comply with bug fix in impldiff.F
1438       as of c33 (exp2, natl_box).
1439     o Corrected store directives in dynamics.F
1440     o Corrected array boundaries in impldiff.F
1441     o Corrected array dimensions in gmredi.
1442       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1443     o Added routine GLOBAL_SUM_INT to global_sum.F
1444     o Added mdsio_gl.F for ECCO purposes.
1445    
1446    checkpoint33
1447     o Fixed bug in lower BC in impldiff.F
1448     o Fixed confusion about units of forcing arrays in FFIELDS.h
1449       namely Fu,Fv,Qnet,Qsw,EmPmR:
1450       - Removed verification/natl_box/code/external_fields_scale.F
1451         (did not differ from that in model/src)
1452       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1453         (see FFIELDS.h for description)
1454       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1455         kpp_calc.F and kpp_transport_t.F
1456       - Removed model/src/external_fields_scale.F and calls to it
1457       - verification/natl_box uses flux data with "atmospheric" sign so
1458         a special version of external_fields_load.F is used to
1459         change the data as it's read in. This way, the arrays
1460         have the right units and signs at all times tha a user could
1461         possibly use them.
1462     o Corrected genmake to delete a temporary file during configuration
1463    
1464    checkpoint32
1465     o Scaling of forcing fields moved from external_forcing.F to
1466       external_fields_scale.F, called directly after loading fields.
1467     o Surface relaxation terms added to surface tendency fields in
1468       extra subroutine.
1469     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1470       fields.
1471     o Changes in GMRedi to comply with packaging structure.
1472     o Modifications and bug fixes in KPP package.
1473     o Verification experiment for KPP added (verification/nat_box/)
1474    
1475    checkpoint31
1476     o Packages interface brought in line with defined standard
1477       -> new routines packages_...F
1478       -> changes in initialise_fixed.F, initialise_varia.F
1479       -> enables initialisation interface for ECCO package
1480     o Rescaling of external forcing fields immediately after read
1481       (removed from external_forcing.F)
1482       -> new: surface_fields_scale.F
1483       -> affects ini_foorcing.F, external_fields_load.F
1484     o Computation of surface tendencies before tendency updates.
1485       -> new: external_forcing_surf.F
1486     o Change of variable names useGMRedi, useKPP, useECCO
1487     o Further changes in dynamics.F, impldiff.F for TAMC
1488     o Tested for experiments 0, 2, 4.
1489       - not yet tested for GMRedi.
1490       - not yet tested for KPP.
1491    
1492    checkpoint30
1493     o Updates for OBCs
1494     o New experiment for test OBCs (internal_wave)
1495     o New output.txt in verification/exp4/results/
1496     o Updates for KPP: calculation of viscosity corrected, new variables
1497       kpp_dumpFreq and kpp_taveFreq
1498     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1499       and entry for T90 in genmake
1500    
1501    checkpoint29
1502     o packaged KPP and GM/Redi
1503    
1504    checkpoint28
1505     o Corrected initialization of hFacMin for difference vertical coordinates
1506     o Modified calculation of partial cell thickness to more robust algorithm
1507     o config_summary.F: replaced write_1D_... by write_0D_...
1508       read_write.F: added subroutines write_0D_...
1509     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1510       included some initialisations required for TAMC.
1511     o routine calc_isoslopes: modified sqrt computation to make it
1512       differentiable for zero argument.
1513     o routines dynamics, impldiff:
1514       included store directives and tape key computations required for TAMC.
1515     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1516    
1517    checkpoint27
1518     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1519       formulation works properly with variable resolution.
1520     o restructured the calling tree between the_model_main() and dynamics()
1521     o split initialise() into initialise_fixed() and initialise_varia()
1522     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1523       in new routine ini_psurf()
1524    
1525    checkpoint26
1526     o moved some #ifdef in optional routines to encompass everything
1527       except the argument declarations. This was using up some memory.
1528     o fixed macros like _ADT to work with both versions of Linux cpp
1529     o cleaned up some unused and uninitialized variables
1530       (helps when debugging with strict compile options)
1531     o split up CPP_EEOPTIONS.h into options and macros
1532       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1533     o patch for 2 processor JAM mode
1534    
1535    checkpoint25
1536     o updates for OBCs and NH
1537     o dramatically reduced memory usage
1538     o added "JAM" routines for use on Artic network
1539     o parameterization of convection by implicit vertical diffusion
1540     o added a diagnostic of convective index
1541     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1542       (this is was partly for OBCs and NH but also in anticipation of
1543        an explicit free-surface option)
1544     o initial state input files for U and V
1545    
1546    checkpoint24
1547     o Removed some spurious "REAL"s
1548     o Updated KPP to latest version from JPL
1549     o Added a COS(latitude) in horizontal viscosity
1550    
1551    checkpoint23
1552     o Added del^4 diffusion for salt and temperature
1553     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1554    
1555    checkpoint22
1556     o Made many small changes: implicit none, format(i5), etc...
1557     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1558    
1559    checkpoint21
1560     o Introduced new I/O package that supports direct-access records (mdsio.F)
1561     o Split-up mid-level I/O routines
1562     o Updated input data for experiments 0,1,2,4 and 5
1563     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1564    
1565    checkpoint20
1566     o Tidied up open-boundaries some more
1567     o Added non-hydrostatic code
1568     o Fixed some input data
1569     o Modified MPI start-up to work in "coupled" context.
1570    
1571    checkpoint19
1572     o Tidied up directory structure for verification experiments.
1573     o Added new code for open boundaries.
1574     o Corrected advective terms near boundaries.
1575     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1576     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1577     o Split default parameters out of ini_parms.F into set_defaults.F.
1578    
1579    checkpoint18
1580     o Further changes for optional code generation with
1581       CPP - ugh!
1582    
1583    checkpoint17
1584     o Beginning to incorporating modularity
1585       for supporting atmos. and ocean configs.
1586     o Small changes for TAMC complinace
1587     o New ultra simple test case. Barotropic box
1588       configuration "exp0".
1589    
1590    checkpoint16
1591     o Minor changes to exchange routines to support
1592       accumulation in reverse mode. Adjoint of an
1593       assignment is an addition.
1594     o Changes to support compilation by TAMC (LR(1)
1595       syntax) and by g77 under Linux ( 72 character
1596       limit ).
1597    
1598    checkpoint15
1599     Rewrote exchange routines to allow
1600     o General tile <-> tile connectivity.
1601     o TAMC reverse mode flag ( is this really needed? )
1602     o Variable width overlap and exchange region widths.
1603     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1604       shmput/shmget, VIA, SYSV shmem and every other cool
1605       communication method.
1606    
1607    checkpoint14
1608     Consistent isomorphism chages made. These allow dynamical core
1609     to support both pressure and meters as a vertical coordinate.
1610    
1611    checkpoint13
1612     Release which corrects global_max problem and a couple
1613     of KGM time-averaging diagnostic errors. Also contains
1614     a double-gyre experiment setup as well as the baseline
1615     4 degree global template. The double gyre template is
1616     organised to allow it to be applied automatically to
1617     the baseline configuration.
1618    
1619    branch-point-rdot
1620     A few tidy-ups have been made bt the real point of this
1621     check-point (excuse the pun) is to allow a branch to be
1622     made for the purposes of adding the rDot alterations.
1623     I don't want to commit the rDot to the main-trunk until
1624     we've actually tested it...
1625    
1626    checkpoint12
1627     Tidy up and added generic genmake script (formerly
1628     configure script).
1629     Released to testers.
1630    
1631    checkpoint11
1632     Re-arranged initialise() and introduced ini_vertical_grid()
1633     and ini_masks_etc().
1634    
1635    checkpoint10
1636     Introduced the configure script.
1637     Separated out the diags package.
1638     Added template for writing time-averages of tile/intermediate quantities.
1639     Updated SIZE.h in exp2 and made the data big-endian.
1640    
1641  checkpoint9  checkpoint9
1642   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
1643   General tidy-up.   General tidy-up.

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