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revision 1.5 by cnh, Mon Jun 15 05:13:55 1998 UTC revision 1.262 by edhill, Thu Feb 26 22:39:55 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 change MNC call locations and add coordinate attributes
7    o mask vorticity at the corner ; affects global_ocean.cs output
8    o fix ini_curvilinear_grid ; test CS experiments with mpi
9    o aim.5l_cs: modify sea-ice fraction input file ; update output
10    o exf: Adding simple range check routine for exf fields after read
11    
12    checkpoint52k_post
13    o removed top-level directory "diags"
14      - we migrated these functions to pkg/timeave a long time ago
15    o fixed bug introduced in pkg/monitor
16    o accuracy ctrlprec = 32 insuffient for gradient checks using
17      averaged fields (I/O via cost_averages)
18      -> use ctrl.h in active_file*.F to control I/O precision.
19    o paramter list of CALL ADTHE_MAIN_LOOP
20    o added initial do_the_model_io to ecco
21    o set all ...Freq to zero after cost_final
22      taveFreq, dumpFreq, pChkptFreq
23    o MAIN and ECCO differentiability restored
24    
25    checkpoint52j_post
26    o fix nchklev in tamc.h for global_ocean...
27    o Bringing flow and store directives up-to-date
28    o Really weird thing!
29      call do_the_model_io from the_main_loop with parameters
30      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
31      TAF places a faulty re-call of initialise_varia
32      after cost_final call which should not be there!
33    checkpoint52j_pre
34    
35    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
36      error messages
37    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
38    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
39      debug output
40    o modfied mdsio_writefield.F to handle non-global files under exch2
41    o update AIM Cubed-Sphere exp (aim.5l_cs):
42      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
43    o update AIM Equatorial Channel exp:
44      use standard aim_v23 pkg and change the SST fields to be more realistic.
45    o globalFile now works with exch2
46    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
47      mon_vort3.F to make exch2 friendly with >1 tile per cube face
48    o limit timeave output for hi-res integrations
49    
50    checkpoint52i_post
51    o removed CPP_EEOPTIONS.h from verification/*/code
52    o updated the tiling for global_ocean_pressure
53    checkpoint52i_pre
54    
55    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
56      the old pkg/aim).
57    
58    checkpoint52h_pre
59    o shortened offending lines in exch2_send_rx?.template
60    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
61    o genmake2: add build & execute test for NetCDF code
62    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
63      old grid files, moved CPP_EEMACROS.h to pkg/exch2
64    o added useSingleCPUIO flag to monitor.F and mon_out.F
65    o added temporary hack for sea-ice dynamics on the cube:
66      metric terms are ignored and it is assumed that
67      there is no sea-ice on cube faces 1, 2, 4, and 5.
68    
69    checkpoint52f_post
70    o added exch2 cube routines to pkg/exch2
71    o modified hs94.cs-32x32x5 to use it
72    o added new grid files to hs94.cs-32x32x5
73    checkpoint52f_pre
74    
75    checkpoint52e_post
76    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
77      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
78    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
79      to work with implicit vertical advection and AB ;
80    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
81    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
82     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
83    checkpoint52e_pre
84    
85    o fix bug in impldiff when Nr=1 or Nr=2.
86    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
87    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
88    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
89      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
90    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
91    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
92    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
93    
94    checkpoint52d_post
95    o re-tiled many expts to allow comparison in multi-processor mode
96      - updated output accordingly
97      - changed hs94.128x64x5 to use intial T from file rather than use the
98        random number generator
99    o add infrastructure in model routines for fizhi and gridalt packages
100    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
101    o changes to permit hi-res, cubed-sphere, configuration
102      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
103      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
104      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
105        of surface winds for the cube
106      (A verification experiment, based on global_ocean.cs32x15, but with
107       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
108       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
109       complete with example surface forcing files and matlab scripts to look
110       at the output and compare it with that of global_ocean.cs32x15.)
111    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
112       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
113       to conform to the common rule.
114    o check-in the first version of the coupler + interfaces for multi-components
115       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
116       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
117       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
118       - ocean and atmos. share the same horizontal grid (no interpolation).
119       - exchanges between component and coupler is done in forward_step
120    o new verification experiment, cpl_aim+ocn:
121       coupled ocean - AIM atmosphere on cs32 grid.
122    
123    checkpoint52d_pre
124    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
125    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
126    
127    checkpoint52c_post
128    o Fixing OPTIONS files for use of exf:
129      - ALLOW_ECCO not needed
130      - ECCO_CPPOPTIONS.h should not be included from
131        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
132        as has been the case in the past
133      - All cal/exf related options are currently set in
134        single header file. Should remain so until we
135        agree on a consistent new policy.
136    o Removed all CPP options for cal package.
137      cal has no more CPP options.
138    o modified STOREs in GAD_ADVECTION
139    o corrected key comp. for passkey
140    
141    checkpoint52b_post
142    o new version: "thsice" of thermodynamic sea-ice pkg:
143     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
144     - modify fluxes but do not change theta directly;
145     - light cleaning of bulk_force pkg (still needed with thsice).
146     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
147       + output_thsice.txt to test thsice & bulk_force pkgs.
148    o put back grid & coriolis monitor output.
149    checkpoint52b_pre
150    
151    o call "do_the_model_io" at the beginning (=> dump initial state)
152    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
153    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
154      (need info on NUMBER_OF_PTRACERS)
155    o missing PTRACERS headers in some routines
156    o default tamc.h in pkg/autodiff supposed to crash
157      to ensure proper customization
158    
159    checkpoint52a_post
160    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
161      - moved surfaceTendencyTice from pkg/seaice to main code
162      - subroutine FREEZE_SURFACE now limits only surface temperature
163        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
164        => new output.txt for global_ocean.cs32x15 & global_with_exf
165      - keep the old version of FREEZE for backward compatibility;
166        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
167      - corresponding modifs for TAF directives
168    o added surface flux output variables to TIMEAVE_STATVARS
169    o time-averaged output for pkg/ptracers
170    o fix problem with ECCO-related divided adjoint
171      snapshot file was missing some ad-variables,
172      but no warning issued by TAF
173    
174    checkpoint52a_pre
175    o some bug fixes for #undef REAL4_IS_SLOW
176    
177    checkpoint52 = ecco_c52_e35
178    o after testing adjoints of checkpoint51u_post
179    
180    checkpoint51u_post
181    o this is the post-merge tag of the ecco-branch
182      (needs another clean checkout and re-testing)
183    o various natl_box_adjoint configs and results
184      but no input fields
185    o obcs adjoint not yet merged!
186    o adding ECCO global 1x1 and 2x2 degree configs
187    o updated/extended some store directives for seaice
188    o pkg/ecco now containes ecco-specific part of cost function
189    o top level routines the_main_loop, forward_step
190      supersede those in model/src/
191      previous input data.cost now in data.ecco
192      (new namelist ecco_cost_nml)
193    o in ctrl/ cleaned some cross-dependencies and updated CPP options
194    
195    checkpoint51t_post
196    o this is the pre-merge tag of the ecco-branch
197    
198    checkpoint51s_post
199    o cleanup: removed various obsolete #define-s
200    o pkg/grdchk
201      - renamed 'ph-grd 3' to 'grad-res'
202      - merged from ecco-branch
203        (remaining bug fixes for obcs gradient checks)
204      - additional high-precision output for testreport
205        (grep for 'precision_grdchk_result')
206    
207    checkpoint51r_post
208    o cleaned up or removed CPP_OPTIONS.h files
209    o updated results for some of the tests to reflect the new
210      optfiles (-ieee: -O0 instead of -O3)
211    
212    checkpoint51q_post
213    o cd_code:
214      - moved cd_scheme.F -> cd_code_scheme.F
215      - separate read_checkpoint from cd_code_ini_vars.F
216      - separated cd_code part from write_checkpoint
217      - updated AD_SOURCE, generated .flow
218      - added CD_CODE_VARS.h to the_main_loop
219      - Moving cd_code specific store dir.s to pkg/cd_code
220    o ctrl package totally restructured
221      - pack/unpack now optional and decoupled from
222        xx_/adxx_ I/O
223      - ctrl_pack/unpack cleaned
224        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
225      - confined inclusion of AD_CONFIG.h to where necessary.
226    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
227    
228    checkpoint51p_post
229    o create initial cd_code package
230      - WARNING: the initialization of fields within packages
231        is broken because INI_FIELDS (where READ_CHECKPOINT is
232        called) is called *before* PACKAGES_INIT_VARIABLES.
233        This seems to be backwards since
234        1) its important to initially zero the entire field including
235           the "halo" region
236        2) zeroing needs to be done *before* reading pickup info
237           and the pickup call might or might not happen in any
238           particular run
239      - this needs an overhaul for R2
240    o cleanup verification/*/code/GMREDI_OPTIONS.h
241    o cleanup testreport
242    
243    checkpoint51o_post
244    o bringing AD-related verif's up to date with genmake2
245      - carbon/
246      - global_ocean.90x40x15/
247      - hs.94.1x64x5/
248      - (front_relax/ )
249    o (more) consistent directory structure for AD-related verif.'s
250    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
251    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
252    o bug fix in find_alpha.F for MDJWF:
253      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
254        change rho -> rho-rhoConst
255      - replace call find_rho to find_rhonum
256    o initialisation of rFlx extended to full array (required by TAF)
257      and shifted to thermodynamics
258    o removed PTRACERS.h in ptracers routine
259    o added surfacetendencyPtr to S/R parameter list pracers_forcing
260    o Correcting initialisations for fVerU, fVerV.
261    o helping TAF to recognize dependency on kUp for
262      fVerU, fVerV
263    o Replacing delZ by delR in pkg/ctrl/
264    checkpoint51o_pre
265    
266    o undid all of cp51 pending some cleanups and discussion
267    o added the [#include "AD_CONFIG.h"] statement to all files that need
268       it for adjoint/tl #defines
269     o re-worked the build logic in genmake2 to support AD_CONFIG.h
270     o removed tools/genmake since it no longer works
271    
272    checkpoint51n_post
273    o modifications to make FREEZE flux visible to pkg/kpp
274      - moved surfaceTendencyTice from pkg/seaice to main code
275      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
276      - subroutine FREEZE now limits only surface temperature
277        (this means new output.txt for global_ocean.90x40x15,
278         global_ocean.cs32x15, and global_with_exf)
279    o added surface flux output variables to TIMEAVE_STATVARS
280    
281    checkpoint51n_pre
282    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
283    o added [#include "AD_CONFIG.h"] to all files that use the following
284      defines:
285      - ALLOW_ADJOINT_RUN
286      - ALLOW_TANGENTLINEAR_RUN
287      - ALLOW_ECCO_OPTIMIZATION
288    
289    checkpoint51m_post
290    o incorporating changes to get TAMC/TAF working in genmake2
291      - added new TAMC/TAF targets to the Makefile
292      - various cleanups related to package handling
293      - these changes should have no impact on the forward model
294    
295    checkpoint51l_post
296    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
297     - faster algorithm for cal_addtime.F
298     - higher precision arithmetic, where needed
299     - pkg/exf *startdate variables changed from calendar date to
300       model integration time
301    
302    checkpoint51l_pre
303    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
304    o enable to apply restoring on S & T only in a latitude band.
305    o update output (external_forcing_surf modif. change truncation errors)
306       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
307    
308    checkpoint51k_post
309    o change default to: useNHMTerms=.FALSE.
310     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
311       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
312     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
313        exp1, ideal_2D_oce
314     - change data file of oceanic exp (leave the results unchanged for now)
315       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
316    o set gravitySign automatically according to the vertical coordinate used
317      (and change sign: back to "logical" value: +1 when R increases downward)
318    o added an include barrier to the default CPP_OPTIONS.h and
319      removed the #include "PACKAGES_CONFIG.h" from it
320    o fix a bug in mom_fluxform (from chk51j_post)
321    
322    checkpoint51j_post
323    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
324    o adjusted some flow directives (dynamics, thermodynamics)
325    o added cubed-sphere case to test cost function
326    o heckpoint_lev?_directives.h now include
327      pkg-specific directives, whenever those are enabled.
328    o Moving pkg-specific flow directives to corresponding pkg
329      Moving pkg-specific differentiation list to corresponding pkg
330      Moving pkg-specific checkpoint-lev storing to corresponding pkg
331      ---> conventions are
332           - pkg_ad.flow
333           - pkg_ad_diff.list
334           - pkg_ad_check_lev?_dir.h
335    
336    checkpoint51i_post
337    o merge of the branch-genmake2
338      - knowingly breaks the older genmake
339      - automatic generation of all ALLOW_${PKG_NAME} defines
340      - new testreport supersedes older testscript
341    o large number of package inclusion and header cleanups
342    checkpoint51i_pre
343    
344    o new output for adjoin of global ocean vector invariant
345    o fix for checkpoint of thermodynamic seaice and bulk_force
346    o Steph gchem various cleanups
347    
348    checkpoint 51h_pre
349    o fixed some single quotes
350    o modify gchem pkg to be more versatile
351    o modifications to clean up dic pkg
352    o add pkg/cfc
353    
354    checkpoint51g_post
355    o provide links for ARPACK and ADM*TLM
356    o start removing verification/vero/
357    o update AD-related stuff
358      (in particular some IF-statements in model/src/ routines)
359    o adding to verification/global_ocean.90x40x15/ adjoint of
360      vector invariant setup
361    
362    checkpoint51f_post
363    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
364    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
365      of tracer Green's fucntions for ocean inversion project.
366    
367    checkpoint51f_pre
368    o Added on-the-fly spatial interpolation capability
369        "USE_EXF_INTERPOLATION" to pkg/exf.
370      - This is a temporary Cartesian-grid hack until
371        the super-duper ESMF coupler becomes available.
372      - See verification/global_with_exf/README for usage example.
373      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
374        flags and modified pkg/seaice accordingly.
375    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
376        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
377        non-local transport term.
378    
379    checkpoint51e_post
380    o pkg/mom_vecinv:
381      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
382      - add time-ave diagnostic of vorticity advection.
383    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
384    o atmospheric geopotential: - include water vapor effect;
385                                - use p^kappa in p* scaling.
386    o land pkg: read initial state from files.
387    o AIM : add stratospheric drag in the upper level
388    
389    checkpoint51d_post
390    o change function ILNBLNK (=> last non-blank char.) to return zero
391      (instead of the string length) when the string. char is empty
392    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
393    o modif's to restore TAMC compatibility
394      - avoid "_d" constructs in PARAMETER declarations
395      - avoid interrupting lines by comment lines
396    o Use cluster local disks for purely local I/O
397      vs. globally visible disks needed for ctrl stuff
398      (merged from ecco-branch)
399      - new active_file_loc... and mdsio_..._loc routines
400      - affected packages: autodiff, ctrl, grdchk, mdsio
401    
402    checkpoint51c_post
403    o introducing integer flag debugLevel
404      - debLevZero: suppress all output
405      - debLevA: standard
406      - debLevB: equivalent to current debugMode=.TRUE.
407    o introducing pathname variable mdsioLocalDir for mdsio
408      that can be specified at runtime
409      (relevant for cluster I/O to local disk)
410    `
411    >>>checkpoint51b_post
412    adjoint of ptracers
413    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
414    o extended state in checkpoint_lev?, etc.
415    o alternative ctrl/cost with tr1 or ptracer
416    o new comlev1_bibj_ptracers
417    o new ptracers.flow
418    o made ptracers_forcing same as external_forcing_s
419    o added verification for adjoint with ptracers
420      - adm. grdchk fail so far
421      - tlm. grdchk OK
422      - checked tapelev/comlev recomputations: OK
423    <<<checkpoint51b_pre
424    
425    checkpoint51a_post
426    o added code for biogeochemistry package
427      - new pkgs: dic, gchem
428      - new subroutine in ptracers
429    o modify code for biogeo packages
430      - in model/src and pkg/ptracers
431    
432    checkpoint51
433    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
434      - autodiff, ctrl, exf, grdchk, seaice
435      kept separate packages
436      - cost, ecco, obcs
437    o updating verification/internal_wave, verification/lab_sea
438      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
439    
440    checkpoint50i_post
441    o Preparing next differentiable checkpoint and sync
442      of MAIN vs. ecco-branch
443      - 1st step: this one is differentiable
444      - 2nd step: next(! not this) checkpoint will have updated packages
445                  from ecco-branch)
446    
447    checkpoint50h_post
448    o new package "land": provide surface BC for AIM.
449    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
450    o AIM: use true log-P extrapolation for near surface temp (= as in
451        F.Molteni paper) ; update aim.5l_cs output.
452    o New variable in PARM03 for more flexible pickups
453    o somewhat cleaned package initialisation sequence for
454      ctrl/ cost/ ecco/ in packages_... routines
455    
456    checkpoint50g_post
457    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
458      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
459      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
460        made the default because of faster convergence than ADI
461    
462    checkpoint50f_post
463    o exf totally restructured
464      - replaced all exf_set_ routines by one generic exf_set_gen.F
465        and made sure it's still differentiable
466      - split exf_getffields.F into new exf_bulkformulae.F
467      - exf_inscal_/exf_outscal_ suffixes consistent with field names
468      - updated adjoint/makefile and relevant verif. accordingly
469    
470    checkpoint50f_pre
471     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
472          + change Evap over land. (update aim.5l_cs output)
473     o added missing .cvsignores and made uniform across expts
474     o changed configuration of tidal_basin_2d expt
475     o added pkg/debug functions for tracing code in fatal crashes
476     o tidied pkg/monitor to use MONITOR_OPTIONS.h
477     o new fn in pkg/monitor to stop model if solution grows too big
478     o removed lots of single quotes from comments
479    
480    checkpoint50e_post
481    o make KPP work with PTRACERS
482     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
483       nearly a copy of kpp_transport_s
484     - there is no analogue to SurfaceTendencyS, so I have to use
485       gPtr(of the surface layer) instead
486    o add a new platform SunFire+mpi (SunFire 15000) to genmake
487    checkpoint50e_pre
488    
489    checkpoint50d_post
490    o change kpp output from multiple-record state files to single-record state
491      files analogous to write_state.F
492    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
493      analogous to the cg2d-related output.
494    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
495      so that writing to internal file fn (with length 512) fails.
496    checkpoint50d_pre
497    
498    checkpoint50c_post
499    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
500    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
501    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
502    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
503    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
504    
505    checkpoint50c_pre
506    Merging from release1_p13:
507    o bug fix for pkg/seaice dynamic solver
508    o Added SEAICE_initialHEFF to pkg/seaice
509    
510    checkpoint50b_post
511    o store u*,v* in gU,V instead of in guNm1,gvNm1
512    o in order to put the momForcing out of the Adams-Bashforth:
513      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
514      to timestep.F
515    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
516    o re-generate output for highly sensitive test-exp:
517       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
518    
519    checkpoint50b_pre
520    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
521    o corrected CPP option mismatch in exf_Bulk... functions for case
522      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
523    
524    checkpoint50a_post
525    o Bug fix for merging between c50 and KPP.
526      ikey was passed from thermodynamics to kpp_calc via
527      common block rather than being recomputed in kpp_calc,
528      in contradiction with new key itdkey.
529      New key ikppkey created, and tamc.h headers updated.
530    
531    checkpoint50
532    - 2nd step of merge with ecco-branch:
533      merge changes in ecco-branch back into main trunk
534    - bug fix in find_alpha
535    - more storing in gmredi_calc_tensor.F, kpp_routines.F
536    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
537    - merged some sliced AD support routines
538    
539    checkpoint49
540    merged from ecco-branch:
541    o exf:
542      - Enable initialisation of forcing fields to constant
543        (runtime) values.
544      - in exf_getffields.F
545        Reduce i-/j-loop to interior domain, discarding overlaps.
546        That also fixes wrong TAF-key computations for key_1, key_2
547        with bulf formulae.
548      - exf_init.F modify #ifdef for exf_init_evap
549      - exf_getffieldrec.F, ctrl_getrec.F
550        The following INT-usages are not safe:
551          fldsecs  = int(fldsecs/fldperiod)*fldperiod
552          fldcount = int(fldsecs/fldperiod) + 1
553        and were modified.
554    o autodiff: checkpoint_lev...
555      - updated storing for bulk formulae (some arrays were missing)
556      - added state for seaice package
557      - synchronized with main branch
558    o DIVA:
559      Modif.s in
560      - the_main_loop.F
561      - the_model_main.F
562      and added cost_final_restore.F cost_final_store.F
563      o With these changes, it is possible to fully separate
564        the first forward run to compute the cost function (mdthe_main_loop)
565        and adjoint runs over individual DIVA intervals (adthe_main_loop)
566        into separate model executions.
567        This enables better tuning of DIVA to given queue sizes.
568      o Loss of cost function value in consecutive DIVA runs is
569        fixed by storing to 'costfinal' file.
570      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
571        beginning/end of adjoint integration is accounted for.
572      The current changes apply to TAF-1.4.26.
573      TAF has one remaining bug, requiring one manual change
574      (see MITgcm manual).
575    o cal: synchronized between MAIN and ecco-branch
576    
577    checkpoint48i_post
578    o Changes to restore differentiability of code w.r.t. previous tag
579      (mostly adding new routines to make list and replacing
580      pressure by totPhiHyd).
581    o Updated and merged grdchk package
582      - has both ADM and TLM checks
583      - works for single- and multi-proc.
584      - output cleaned
585      - worked successfully for parallel DIVA
586    o genmake:
587      - Adding -platform=SP4
588      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
589    o Modif. for DIVA:
590      ctrl_unpack should not be called in intermediate DIVA interval.
591      (similar thing would apply for active files such as
592      tbar, sbar, psbar, which should not be reinitialised;
593      only relevant for ecco-branch)
594    
595    checkpoint48h_post
596    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
597    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
598    o Added SEAICE_initialHEFF to pkg/seaice
599    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
600    
601    checkpoint48g_post
602    --- EOS:
603    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
604      store total Potential in totPhyHyd for diagnostics & EOS.
605    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
606    --- Pressure/geopotential gradient:
607    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
608    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
609      ( changes results of global_ocean_pressure )
610    o NLFS + z-coord.: add eta*Rho' contribution.
611    o accurate phiHyd when using interface-W at the middle between 2 centers
612     ( changes results of ideal_2D_oce )
613    o includes r* 2nd term in potential gradient.
614    
615    checkpoint48f_post
616    Merging from release1_p12:
617    o Modifications for using pkg/exf with pkg/seaice
618      - improved description of the various forcing configurations
619      - added basic radiation bulk formulae to pkg/exf
620      - units/sign fix for evap computation in exf_getffields.F
621      - updated verification/global_with_exf/results/output.txt
622    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
623      (SBO) core products, including oceanic mass, center-of-mass,
624      angular, and bottom pressure (see pkg/sbo/README.sbo).
625    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
626      to avoid negative values in shallow regions.
627      - updated verification/natl_box/results/output.txt
628      - updated verification/lab_sea/results/output.txt
629    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
630    o Added useSingleCpuIO option (see PARAMS.h).
631    o Updated useSingleCpuIO option in mdsio_writefield.F to
632      work with multi-field files, e.g., for single-file pickup.
633    o pkg/seaice:
634      - bug fix in growth.F: QNET for no shortwave case
635      - added HeffFile for specifying initial sea-ice thickness
636      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
637    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
638      kpp_transport_t.F, forward_step.F, and the_main_loop.F
639    o pkg/seaice:
640      - adjoint-friendly modifications
641      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
642    
643    checkpoint48e_post
644    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
645    o dynamics: change definition of computational domain & adapt mom_fluxform
646      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
647    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
648        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
649        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
650        global_ocean.90x40x15 global_with_exf global_ocean_pressure
651        inverted_barometer solid-body.cs-32x32x1
652      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
653    
654    checkpoint48d_post
655    o in preparation for r*:
656     a) use pre-computed gradient of hydrostatic potential:
657        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
658     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
659        => affects results of glob_oce_pressure (different truncation error)  
660      update output.txt of ideal_2D_oce & global_ocean_pressure
661    
662    checkpoint48d_pre
663    o in preparation for r*:
664      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
665      pass the 2 comp. of the grad. as arguments to momentum S/R.
666      but for the moment, only used if it does not change the results.
667    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
668    
669    checkpoint48c_post
670    Modifications in treatment of initial flux forcing controls
671    to avoid extra storing of flux fields.
672    
673    checkpoint48c_pre
674    o Added tidal_basin_2d experiment (currently 1D!)
675    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
676    
677    checkpoint48b_post
678    o r* coordinate added in #ifdef NONLIN_FRSURF block.
679     (modification to pressure gradient not yet implemented)
680    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
681      (for U & V) that are used for vertical advection of momentum.
682    
683    checkpoint48a_post
684    o In preparation for r*, use temp. array to compute vertical transport
685       in flux-form momentum pkg. => change results of few test-exp.
686      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
687                        lab_sea, natl_box & plume_on_slope
688    
689    checkpoint48
690    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
691    
692    checkpoint47j_post
693    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
694    o moved adexch from forward_step to addummy_in_stepping
695    o added exch in ctrl_map_...
696    o aveFreq.=0. at end of cost_final to avoid overwrite in
697      reverse checkpointing loop
698    o Yet more changes in gmredi:
699      * adgmredi_calc_tensor
700        avoiding all recomputation of gmredi_slope_limit
701      * adgmredi_x/y/rtransport
702        added flag for excessive storing to avoid recomp. of
703        u/v/rtans, dTdx/y/z
704        -> this is not really necessary and very memory-consuming
705      * adgmredi_slope_psi:
706        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
707      * gmredi_slope_limit
708        re-activated full calculation of taperfct for case 'ac02'
709    o updating verification/ adjoints of carbon, global_ocean.90x40x15
710    
711    checkpoint47i_post
712    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
713    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
714      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
715    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
716    o gmredi: fix few bugs.
717    
718    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
719    This will be a good checkpoint to plug into the ecco-branch.
720    o few modif.'s to get latest version adjointed
721      (mainly kick out code in ini_linear_phisurf)
722    o modif's to run adjoint with exactConserv
723    o case GM_BOLUS_ADVEC should be cleaned
724      S/R gmredi_slope_psi should be cleaned
725    o verification/carbon now has exactConserv=.TRUE.
726    
727    checkpoint47g_post
728    o time-average AIM output: becomes independent from statvars time-average
729      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
730    o After TAF bug fix:
731      Tested adjoint of gmredi package.
732      Tests were done with checkpoint47 rather than with latest
733      checkpoint47f_post since the latter is broken for the adjoint
734      verification/carbon/ contains both ADM and TLM gradient checks.
735    Here they are, before they get changed/lost/stolen.
736    Mostly modif.'s to fix numerical sensitivities.
737    Gradient checks OK for
738    - GM_taper_scheme:
739      * clipping
740      * ac02
741      * linear
742      * glw91
743      * dm95
744      * ldd97
745    - GMREDI_OPTIONS:
746      * GM_VISBECK_VARIABLE_K
747      * GM_NON_UNITY_DIAGONAL
748      * GM_EXTRA_DIAGONAL
749      * GM_BOLUS_ADVEC
750    in conjunction with data.gmredi parameters to be checked in
751    in a few minutes under verification/carbon/code/
752    
753    checkpoint47f_post
754    Merging from release1_p10:
755    o modifications for using pkg/exf with pkg/seaice
756      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
757        and SEAICE_EXTERNAL_FLUXES
758      - pkg/exf CPP options EXF_READ_EVAP and
759        EXF_NO_BULK_COMPUTATIONS
760      - usage examples are Experiments 8 and 9 in
761        verification/lab_sea/README
762      - verification/lab_sea default experiment now uses
763        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
764    
765    checkpoint47e_post
766    o created a tag prior to creating a branch
767    
768    checkpoint47d_post
769    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
770      at the bottom boundary had an erroneous half slip boundary condition
771    o added bottom drag and no slip boundary condition capabilities to
772      oceanic pressure coordinates code
773    o added new verification experiment global_ocean_pressure, this experiment is
774      also described in the tutorial section of the manual
775    checkpoint47d_pre
776    
777    checkpoint47c_post
778    o Added a verification experiment for a global cubed-sphere ocean run
779      -  verification/global_ocean.cubed32x32x30
780      -  uses pkg/therm_seaice and pkg/bulk_forcing
781    
782    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
783    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
784      when using P-coordinate; only implemented for atmospheric config.
785    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
786      NOTES: requires option NONLIN_FRSURF to be "#define".
787    o update advect_xz/results/output.txt (left from checkpoint44g_post)
788    
789    checkpoint47b_post
790    Merging from release1_p9:
791    o pkg/seaice
792      - removed GOTO's and added taf directives
793      - double precision constants to reduce the g77 (Linux)
794        to F77 (SGI) differences reported in release1_p8
795    o tools/genmake
796      - added SGI options
797    o verification/testscript
798      - updated to that of checkpoint47a_post
799    o verification/global_ocean.90x40x15/input/eedata
800      - modified for SGI f77 compatibility
801    o verification/lab_sea
802      - added description of sea-ice model
803      - added missing matlab routines
804      - added test of thermodynamics parallelization
805    
806    checkpoint47a_post
807    o new pkg: aim_v23
808     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
809       for now, keep the same surface forcing as before.
810     - Part-Cell implemented into AIM; check that Heat & Water are conserved
811     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
812     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
813    o add diagnostic of surface correction term in monitor output
814    
815    o bulk_force and therm_seaice
816    - Two packages:  bulk_force (Bulk forcing)
817      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
818    - Earlier integration from Stephaine Dutkiewicz
819      and Patrick Heimbach.
820    - Two ifdef statements for compile time,
821       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
822    
823    checkpoint47
824    differentiable version of checkpoint46n_post
825    o bug fix in quasihydrostaticterms
826    o * "clean" adjoint code (in terms of extensive recomputations)
827        can now be obtained for all GMREDI options (i.e. for
828        - GM_VISBECK_VARIABLE_K
829        - GM_NON_UNITY_DIAGONAL
830        - GM_EXTRA_DIAGONAL
831        - GM_BOLUS_ADVEC )
832      * However, wrong gradient check problem remains unsolved.
833      * New CPP options have been introduced for different
834        tapering schemes
835    o external_fields_load now part of differentiation list
836    o pressure needs multiple storing;
837      would be nice to have store_pressure at beginning or
838      end of forward_step, e.g. by having phiHyd global (5-dim.)
839      (NB: pressure is needed for certain cases in find_rho,
840      which is also invoked through convective_adjustment).
841    o recomputations in find_rho for cases
842     'JMD95'/'UNESCO' or 'MDJWF' are OK.
843    o #define ATMOSPHERIC_LOADING should be differentiable
844    o ini_forcing shifted to begining of initialise_varia
845    o Incorporating QNVS line search routines into MITgcm
846      (this is separate code, and therefore not under pkg)
847      lsopt/, optim/
848    o Updated verification/carbon/
849      - #define GM_VISBECK_VARIABLE_K
850      - GM_taper_scheme    = 'ldd97'    
851    
852    checkpoint46n_post
853    Merging from release1_p8:
854    o verification/natl_box:
855      updating new external_fields_load routine
856    o New package: pkg/seaice
857      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
858      The sea-ice code is based on Hibler (1979-1980).
859      Two sea-ice dynamic solvers, ADI and LSR, are included.
860      In addition to computing prognostic sea-ice variables and diagnosing
861      the forcing/external data fields that drive the ocean model,
862      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
863      The implied surface heat flux is then stored in variable
864      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
865      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
866      non-local transport term.  Because this call precedes model
867      thermodynamics, temperature under sea-ice may not be "exactly" at
868      the freezing point by the time theta is dumped or time-averaged.
869      N.B.: fairly large differences in accuracy occur across
870            different platforms/compilers; comparison between
871            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
872            generated output gives:
873       T           S           U           V
874      C D M    c        m  s        m  s        m  s        m  s
875      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
876      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
877      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
878    
879      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
880    o GAD:
881      - generated new common blocks to account for call of
882        same gad routines with differing traceridentities
883        (needed to modify tracerIdentity indices in GAD.h)
884      - generated separate common blocks for case useCubedSphereExchange
885        (Department of Futurology)
886      - parameter lists to gmredi_?transport: added tracerIdentity
887      - added new key indices to tamc.h
888    o external_fields_load:
889      - added this routine to TAF list
890      - needed to make some common blocks global and additional storing
891        along the same lines as exf package (checkpoint_lev?_directives.h)
892    o exf:
893      updated external forcing package
894      - bug fixes carried over from ecco-branch
895        (missing OBCS_OPTIONS.h in two routines)
896      - enable easy to use "no forcing".
897      - added exf I/O for atmospheric loading
898      - added exf I/O for runoff data
899      - transfered scaling between exf <-> MITgcm to exf namelist
900    o Adding new verification experiment global_with_exf.
901      This verification experiment is almost identical to the
902      global_ocean.90x40x15 experiment, except that it uses
903      the exf (and cal) package instead of the
904      external_fields_load routine (cf README file).
905    
906    checkpoint46m_post
907    o modified testscript to return -- when there are no lines of "%MON" output
908    o added new flag "quasiHydrostatic" for QH mode
909      and new routine quasihydrostaticterms()
910    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
911      New routine: mom_u_coriolis_nh()
912    o fixed sign of non-hydrostatic metric terms in u and v equations.
913      Depend on correct sign of gravitySign.
914    o added work.pc* to .cvsignore in aim directories using ifc
915    o introduced flag for controllin non-hydrostatic metric terms
916    o removed gravitySign from PARM04
917    o switched to g77/ifc from pgf77 in aim experiments
918    
919    checkpoint46l_post
920    o made convective adjustment work with pressure coordinates:
921     - changed the direction of k-loop in convective_adjustment.F for the
922       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
923     - adjusted the reference pressure k-index in convective_adjustment.F
924     - adjusted the convection condition in convect.F (in analogy to
925       calc_ivdc.F)
926     - convective_adjustment no longer computes anything on the halos
927     - removed the warnings about negative salinity from find_rho.F and
928       find_alpha.F; instead the new routine look_for_neg_salinity, called
929       at the beginning of find_rho, find_alpha, and find_beta, does a
930       check of the entire slice, if CPP-option
931       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
932    checkpoint46l_pre
933    
934    checkpoint46k_post
935    o fixed the verification/global_ocean.90x40x15 experiment:
936     - new bathymetry (the world according to A., JMC, and M.)
937     - new initial fields and forcing fields (*.bin files)
938     - new POLY3.COEFFS (for the next release one should switch to a full
939       equation of state: JMD95P or MDJWF)
940     - fixed several errors and redundancies in the data file
941     - experiment uses looped cells
942     - added matlab directory with diagnostic scripts for plotting of output
943    
944    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
945     - read AIM physics parameters from a file (data.aimphys)
946     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
947    
948    checkpoint46j_post
949    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
950    o move wVel computation at the end of the time step, in S/R integr_continuity
951    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
952    o update timeave pkg for wVel diagnostic.
953    checkpoint46j_pre
954    
955    checkpoint46i_post
956    o Clean up AIM package (and keep the results unchanged):
957      include CPP_OPTION and use IMPLICT NONE in all routines ;
958      declare all the variables _RL ; use _d 0 for all numerical constants.
959      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
960    
961    checkpoint46h_post
962    o cleaned up the use of rhoNil and rhoConst.
963      - rhoNil should only appear in the LINEAR equation of state, everywhere
964        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
965        and the dynamical equations are all divided by rhoConst
966    o introduced new parameter rhoConstFresh, a reference density of fresh
967      water, to remove the fresh water flux's dependence on rhoNil. The default
968      value is 999.8 kg/m^3
969    o cleanup up external_forcing.F and external_forcing_surf.F
970      - can now be used by both OCEANIC and OCEANICP
971    checkpoint46h_pre
972    
973     Added code to convert surface volume flux (fresh water) into
974     a mass flux when using P coordinates in the ocean (OCEANICP).
975     Note: It assumes you have set rho0=rhoConst=density of fresh water.
976    
977    checkpoint46g_post
978    o Include a new diagnostic variable phiHydLow for the ocean model
979      - in z-coordinates, it is the bottom pressure anomaly
980      - in p-coordinates, it is the sea surface elevation
981      - in both cases, these variable have global drift, reflecting the mass
982        drift in z-coordinates and the volume drift in p-coordinates
983      - included time averaging for phiHydLow, be aware of the drift!
984    o depth-dependent computation of Bo_surf for pressure coordinates
985      in the ocean (buoyancyRelation='OCEANICP')
986      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
987        Theta, Salinity, and Pressure in the parameter list. This routine is
988        presently contained in find_rho.F. This routine does not give the
989        correct density for 'POLY3', which would be a z-dependent reference
990        density.
991    o cleaned up find_rho
992      - removed obsolete 'eqn' from the parameter list.
993    o added two new verification experiments: gop and goz
994      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
995    checkpoint46g_pre
996    
997    checkpoint46f_post
998    o Enable tangent linear (forward mode) gradient checks:
999      - extended active file handling to g_... files
1000      - added TANGENT_SIMULATION to theSimulationMode
1001      - extended grdchk package accordingly
1002    o added tangent linear setup in verification/carbon/code_ftl
1003    o added adjoint setup in verification/front_relax/code_ad
1004    
1005    checkpoint46e_post
1006    o Added new equation of state -> MDJWF
1007      - EOS of McDougall et al., 2002, JAOT, submitted
1008      - caveat: the equation of state is only valid for a smaller (more
1009        realistic?) range of values than JMD95P/Z and UNESCO
1010      - added masks to the calculation of pressure in store_pressure
1011      - added more check values for density in check_eos (ini_eos.F), some of
1012        the old check values are out of the range of the MDJWF-eos, so don't
1013        expect perfect matches for those
1014    checkpoint46e_pre
1015    
1016    checkpoint46d_post
1017    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1018      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1019      case of pressure coordinates. eosType='JMD95Z' in
1020      combination with buoyancyRelation='OCEANICP' now causes an error.
1021    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1022      in find_alpha/beta.
1023    checkpoint46d_pre
1024    
1025    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1026      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1027    
1028    checkpoint46c_post
1029    o Changes necessary for ocean in p-coordinates
1030     -  Added new buoyancy relation = 'OCEANICP'
1031     -  Added new parameters = gravitySign (this used to be contained inside
1032        the factor dRdZ which I added when we first switched to R coordinates).
1033     X GM/Redi is not compatible (yet)
1034     X bottom drag and no-slip need to be debugged.
1035    checkpoint46c_pre
1036    
1037    checkpoint46b_post
1038    o Added new equation of state -> JMD95Z and JMD95P
1039      - EOS of Jackett and McDougall, 1995, JAOT
1040      - moved all EOS parameters into EOS.h
1041      - new routines ini_eos.F, store_pressure.F
1042    o Added UNESCO EOS, but not recommended because it requires
1043      in-situ temperature (see JMD95)
1044    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1045      unesco.f to be used with POLY3
1046    checkpoint46b_pre
1047    
1048    checkpoint46a_post
1049    o Added (atmospheric) pressure loading
1050      - new field in FFIELDS.h, etc...
1051      - new cpp flag ATMOSPHERIC_LOADING
1052    o Changed hFacC to _hFacC in calc_phi_hyd.F
1053    o Added SHORTWAVE_HEATING to some files for consistency
1054    checkpoint46a_pre
1055    
1056    checkpoint46
1057    further merges from release1_p5
1058    o new ctrl package
1059      - adopted from ECCO environment to enable optimization
1060      - added Eliassen Palm fluxes to controls
1061    o added Eliassen Palm flux controls to gradient check package
1062    o cost package
1063      - Compatible with new ctrl package
1064      - added Eliassen Palm cost hooks
1065      - modif's of existing cost functions
1066    o Adjoint-related bug fixes in kpp:
1067      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1068      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1069    o autodiff package
1070      - flow directives:
1071        + new for S/R do_the_model_io
1072        + enhanced for S/R checkpoint
1073        + new gmredi.flow
1074      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1075        disable adcommon.h/g_common.h by default.
1076      - fixed problem for adjoint of global_max
1077    o modified verification/carbon/
1078    o New setup for adjoint of global_ocean
1079    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1080    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1081    o incorporated hooks for sponge layer code (external_forcing.F)
1082    
1083    checkpoint45d_post
1084    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1085    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1086      (affects plume_on_slope "cg2d" output)
1087    o add new parameter deltaTfreesurf for free-surface time stepping
1088    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1089    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1090    o change phiMin in exp1 (to agree with documentation)
1091    o add new flags:
1092     - T,S forcing inside/outside Adams-Bashforth
1093     - turn off temp,salt advection and/or forcing
1094     - for each tracer, define internal flag for multiDimAdvection & A-B
1095    o monitor: change definition of KE to check conservation of Energy
1096    
1097    checkpoint45c_post
1098    o Removed f90 comments ("!")
1099    o Modified initialisations to enable exf package for MITgcm
1100      (without invoking ECCO_PACKAGE).
1101    o modifications to gradient check package (Martin Losch)
1102      - enable centered differences
1103      - modified format of standard output
1104    
1105    checkpoint45b_post
1106    o cleaned exchange calls in cg2d
1107    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1108    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1109      to configure barotropic setup (Martin Losch)
1110    o moved some initialisations within bi,bj loop in dynamics
1111      (TAF flow dependency)
1112    o in initialise_varia, moved call packages_init_variables
1113      before convective_adjustment_init
1114      (corresponding adjustment of TAF tape initialisation).
1115    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1116    
1117    checkpoint45a_post
1118    o compute Rho over the whole domain (extend iMin,jMin indices)
1119    o specific exchange for X-slice domain (case Ny=1)
1120    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1121    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1122    
1123    checkpoint44h_post = checkpoint45
1124    o Fix to restore differentiability:
1125      place at which packages_init_variables is called in
1126      initialise_varia is crucial for reverse control flow.
1127    o modifications in GMRedi to enable stable adjoint
1128      (corresponding modif's in thermodynamics, dynamics)
1129    o added missing hook for sponge layer code in external_forcing
1130    o modified test cost functions
1131    o storing in gad_advection (plus removal of write(0,*)!
1132    o missing headers TR1.h added in convective_adjustment routines
1133    o errorMessageUnit set non-equal zero in eeboot
1134      (conflict on some platforms, e.g. IBM SP3)
1135    o modified carbon verif.
1136    
1137    checkpoint44h_pre
1138    o vertical grid option: allow to put the Interface at the middle between
1139      2 cell-centers ; replace delZ in pkg/kpp by drF.
1140    o GM Advective form: Tracers are advected using the residual transport (=
1141      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1142    
1143    checkpoint44g_post
1144    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1145      results) ; ifdef missing in thermodynamics.F
1146    
1147    checkpoint44f_pre,checkpoint44f_post
1148    o added PTRACERS package
1149      This allows an arbitrary number of passive tracers to be integrated
1150      forward simultaneously with the dynamicaly model.
1151      + Implemented so far:
1152        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1153        - I/O and checkpointing
1154        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1155      + Not implemented so far:
1156        - KPP
1157        - OBCS
1158      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1159        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1160        line in data.pkg.
1161      + This package is disabled by default since it increases storage.
1162    
1163    
1164    o testscript: added -cleanup option
1165    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1166                 b) enable to filter 2D fields.
1167    
1168    checkpoint44e_pre,post
1169    o re-wrote convective adjustment to use pre-calculated weights
1170      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1171      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1172      Original calls to convect() still in place.
1173    
1174    chkpt44d_pre,post
1175    o added missing EXCLUDE_MONITOR flags
1176    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1177      (incompatible typ in MIN/MAX expressions caused problems
1178      on IBM SP3)
1179    o in genmake added variable MAKEDEPEND
1180      plus resetting for case SunOS
1181    o added timer_stats.c routine for IBM SP3
1182    o removed variables in dynamics
1183    !!! I forgot to create tag chkpt44d_pre !!!
1184    !!! But chkpt44d_pre = chkpt44c_post    !!!
1185    
1186    o real fresh water flux implemented with non-linear free-surface.
1187    
1188    chkpt44c_pre,post
1189    o few fix (mask in shap_s2, EmPmR in external_field_load,
1190      USE_NATURAL_BCS in solve_for_P);
1191    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1192    
1193    checkpoint44b_pre/_post
1194    o merge of relevant stuff from the ecco-branch:
1195      - genmake: removed $S64 overwrite for case SunOS
1196      - pkg/exf: update and corrections for field swapping and obcs
1197      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1198                  harmonized between ECCO and MITgcm
1199      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1200                      updated checkpointing_lev... lists for obcs
1201      - model/src: minor changes in forward_step, plot_field
1202                   added directive for divided adjoint in the_main_loop
1203      - pkg/mdsio: added mdsio_gl_slice
1204    
1205    o check parameters & config (chkpt44a_pre,post)
1206    o OBC and NonLin_FrSurf.
1207    
1208    checkpoint44
1209    o fix bug in mom_vi_del2uv
1210    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1211    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1212    o update AIM experiments (NCEP input files)
1213    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1214    o added some stuff for AD
1215    
1216    checkpoint43
1217    o added two new advection tests
1218    o added global 4x4 degree ocean test
1219    o added test of H&S94 with free surface on cube
1220    o some final mods for gradient check, adjoint,...
1221    
1222    checkpoint42
1223      Fixed AD-related problems:
1224    o Store directives up-to-date with re-arranged Adams-Bashforth
1225      (mainly thermodynamics.F)
1226    o New store directives for multi-dim. advection schemes
1227      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1228      * new common block and key passkey
1229      (mainly gad_advection.F)
1230    o Modified store directives for split of dynamics/thermodynamics
1231      for the case ALLOW_KPP
1232    o Cleaned argument list for timestep_tracer.F
1233    
1234    checkpoint41
1235    o re-formatted/added comments in prologues of key subroutines
1236      to work with protex
1237    
1238    checkpoint40
1239    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1240    o added FLT (floats) package from Arne along with demo. experiment
1241    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1242      implementation of forward-in-time forcing terms
1243    o more mods for non-linear free-surface including new variable
1244    o modified multi-dim method to work on cube
1245    o bug fix in KPP (from DM)
1246    
1247    checkpoint40pre9
1248    o added DST advection schemes
1249    o fix MPI bug on SGI's
1250    o modifications for non-linear free-surface
1251    o fixed conditionals for fixed flow/passive tracer only mode
1252    o added tension/strain form of stress tensor
1253    o changes to commenting of arguments for TAF/TAMC
1254    o added/updated many matlab scripts
1255    o added multi-dimensional advection method for tracers
1256      
1257    checkpoint40pre8
1258    o new package rw/
1259      Added method for dumping intermediate local arrays:
1260      mdsio_writetile - same as mdsio_writefield except works from inside
1261                        bi,bj loop
1262      mdsio_writelocal - same as mdsio_writetile except works for local
1263                         arrays
1264      write_local_r? - higher-level wrapper for mdsio_writelocal
1265      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1266      Example given at end of mom_vecinv.F that dumps some local arrays.
1267    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1268      control flux-form versus vector invariant code.
1269      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1270      or genmake -DISABLE ...
1271    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1272      (additional storing is now needed for case vecinv;
1273      currently nothing implemented to switch this storing off
1274      in case fluxform is used since no CPP flag available).
1275    
1276    checkpoint40pre7
1277    o bug fix in dynamics.F
1278      calc_viscosity called before k=1,Nr loop.
1279    o added some #ifdef's ALLOW_PASSIVE_TRACER
1280    o cleaned initialisations in ctrl_map_ini
1281      related to TAF
1282    
1283    checkpoint40pre6
1284    o split dynamics into thermodynamics & dynamics
1285    o corresponding split of calc_diffusivity into
1286      calc_diffusivity, calc_viscosity
1287      (kpp_calc_diff, kpp_calc_visc).
1288    o Added diffkr, kapgm to control variables
1289    o bug fix in gmredi_slope_limit for ldd97
1290    
1291    checkpoint40pre5
1292    o proper initialization of Adams-Bashforth time stepping
1293      + uses forward step for very first step of model (iter=0)
1294    o re-generated *all* output since almost all output is modified by this
1295      change (sorry but we've been putting this one off for about 2 years)
1296      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1297        *not* regenerated since they are already out of date and I don't
1298        want to create the impression that they are suddenly working.
1299    o removed KAP stuff for DEC's
1300    o modified/added many .cvsignore files in */code and */input
1301    o added new expt "solid-body.cs-32x32x1"
1302      + this uses an alternative form of ini_curvilinear_grid.F which
1303        is not necessarily any better than the current one...
1304    
1305    checkpoint40pre4
1306    o added re-initialisations of utrans,vtrans,rtrans in
1307      calc_common_factors which are crucial for TAF.
1308    o extended iMin,jMin range for calc_common_factors,
1309      calc_diffusivity
1310    o added option ALLOW_PASSIVE_TRACER
1311    o a few minor updates and fixes
1312    
1313    checkpoint40pre3
1314    o created calc_gtr1.F for gad package
1315    o split the_main_loop and re-introduced forward_step
1316    o some recomputations of nIter0 for TAMC
1317    
1318    checkpoint40pre2
1319    o Updated to latest branch of AJA, JMC
1320    o Added gradient check package
1321    o Added routines for passive tracer handling
1322    o Added carbon sequestration sensitivity experiment
1323    
1324    checkpoint39
1325     o Modifications and fixes to support TAMC
1326       (mainly missing or wrong directives)
1327     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1328       in addummy_in_stepping
1329     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1330     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1331     o Included following packages:
1332       cal: calendar
1333       exf: external forcing
1334       ecco: essential routines to control use of cal, exf
1335             (NB: this is not the full ECCO environment)
1336     o disabled some packages by default in genmake
1337    
1338    checkpoint38
1339     o see notes_c37_adj.txt
1340     o corrected wrong layer index in external_forcing_t
1341     o replaced the_main_loop/forward_step by the_main_loop
1342     o removed forceoutput from write_state
1343       (replaced criteria for initial/final state)
1344     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1345    
1346    checkpoint37
1347     o mdsio.F routine split and packaged in pkg/mdsio
1348       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1349        used unless genmake -disable=mdsio)
1350     o allow a more precise surface-geopotential gradient for the atmosphere
1351       taking into account the change in space of Alpha (=1/rho) at the surface.
1352     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1353       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1354     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1355       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1356       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1357     o Time-Average diagnostics defined as a pseudo package "timeave".
1358     o pickup files : old pickup (before c35) did not work with new code (c35
1359       and after) unless activating 2 commented lines in initialise-varia.
1360     o Non-Hydrostatic pickup file Pb fixed.
1361     o bug with Rigid-lid version (since c35) fixed.  
1362    
1363    checkpoint36
1364     o implement Crank-Nickelson barotropic time-stepping
1365     o recover Time-Average diagnostics
1366     o fix Pb in checkpoint (PR#19)
1367     o AIM become a standard package ; clean unused CPP_kees
1368    
1369    checkpoint35
1370     o subtantial rewrite of dynamics.f
1371     o allows staggered time-stepping
1372     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1373     o added bottom drag (linear + quadratic)
1374    
1375    checkpoint34
1376     o Modified exchange routines for correct reverse simulation.
1377     o Added verification output to comply with bug fix in impldiff.F
1378       as of c33 (exp2, natl_box).
1379     o Corrected store directives in dynamics.F
1380     o Corrected array boundaries in impldiff.F
1381     o Corrected array dimensions in gmredi.
1382       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1383     o Added routine GLOBAL_SUM_INT to global_sum.F
1384     o Added mdsio_gl.F for ECCO purposes.
1385    
1386    checkpoint33
1387     o Fixed bug in lower BC in impldiff.F
1388     o Fixed confusion about units of forcing arrays in FFIELDS.h
1389       namely Fu,Fv,Qnet,Qsw,EmPmR:
1390       - Removed verification/natl_box/code/external_fields_scale.F
1391         (did not differ from that in model/src)
1392       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1393         (see FFIELDS.h for description)
1394       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1395         kpp_calc.F and kpp_transport_t.F
1396       - Removed model/src/external_fields_scale.F and calls to it
1397       - verification/natl_box uses flux data with "atmospheric" sign so
1398         a special version of external_fields_load.F is used to
1399         change the data as it's read in. This way, the arrays
1400         have the right units and signs at all times tha a user could
1401         possibly use them.
1402     o Corrected genmake to delete a temporary file during configuration
1403    
1404    checkpoint32
1405     o Scaling of forcing fields moved from external_forcing.F to
1406       external_fields_scale.F, called directly after loading fields.
1407     o Surface relaxation terms added to surface tendency fields in
1408       extra subroutine.
1409     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1410       fields.
1411     o Changes in GMRedi to comply with packaging structure.
1412     o Modifications and bug fixes in KPP package.
1413     o Verification experiment for KPP added (verification/nat_box/)
1414    
1415    checkpoint31
1416     o Packages interface brought in line with defined standard
1417       -> new routines packages_...F
1418       -> changes in initialise_fixed.F, initialise_varia.F
1419       -> enables initialisation interface for ECCO package
1420     o Rescaling of external forcing fields immediately after read
1421       (removed from external_forcing.F)
1422       -> new: surface_fields_scale.F
1423       -> affects ini_foorcing.F, external_fields_load.F
1424     o Computation of surface tendencies before tendency updates.
1425       -> new: external_forcing_surf.F
1426     o Change of variable names useGMRedi, useKPP, useECCO
1427     o Further changes in dynamics.F, impldiff.F for TAMC
1428     o Tested for experiments 0, 2, 4.
1429       - not yet tested for GMRedi.
1430       - not yet tested for KPP.
1431    
1432    checkpoint30
1433     o Updates for OBCs
1434     o New experiment for test OBCs (internal_wave)
1435     o New output.txt in verification/exp4/results/
1436     o Updates for KPP: calculation of viscosity corrected, new variables
1437       kpp_dumpFreq and kpp_taveFreq
1438     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1439       and entry for T90 in genmake
1440    
1441    checkpoint29
1442     o packaged KPP and GM/Redi
1443    
1444    checkpoint28
1445     o Corrected initialization of hFacMin for difference vertical coordinates
1446     o Modified calculation of partial cell thickness to more robust algorithm
1447     o config_summary.F: replaced write_1D_... by write_0D_...
1448       read_write.F: added subroutines write_0D_...
1449     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1450       included some initialisations required for TAMC.
1451     o routine calc_isoslopes: modified sqrt computation to make it
1452       differentiable for zero argument.
1453     o routines dynamics, impldiff:
1454       included store directives and tape key computations required for TAMC.
1455     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1456    
1457    checkpoint27
1458     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1459       formulation works properly with variable resolution.
1460     o restructured the calling tree between the_model_main() and dynamics()
1461     o split initialise() into initialise_fixed() and initialise_varia()
1462     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1463       in new routine ini_psurf()
1464    
1465    checkpoint26
1466     o moved some #ifdef in optional routines to encompass everything
1467       except the argument declarations. This was using up some memory.
1468     o fixed macros like _ADT to work with both versions of Linux cpp
1469     o cleaned up some unused and uninitialized variables
1470       (helps when debugging with strict compile options)
1471     o split up CPP_EEOPTIONS.h into options and macros
1472       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1473     o patch for 2 processor JAM mode
1474    
1475    checkpoint25
1476     o updates for OBCs and NH
1477     o dramatically reduced memory usage
1478     o added "JAM" routines for use on Artic network
1479     o parameterization of convection by implicit vertical diffusion
1480     o added a diagnostic of convective index
1481     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1482       (this is was partly for OBCs and NH but also in anticipation of
1483        an explicit free-surface option)
1484     o initial state input files for U and V
1485    
1486    checkpoint24
1487     o Removed some spurious "REAL"s
1488     o Updated KPP to latest version from JPL
1489     o Added a COS(latitude) in horizontal viscosity
1490    
1491    checkpoint23
1492     o Added del^4 diffusion for salt and temperature
1493     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1494    
1495    checkpoint22
1496     o Made many small changes: implicit none, format(i5), etc...
1497     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1498    
1499    checkpoint21
1500     o Introduced new I/O package that supports direct-access records (mdsio.F)
1501     o Split-up mid-level I/O routines
1502     o Updated input data for experiments 0,1,2,4 and 5
1503     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1504    
1505    checkpoint20
1506     o Tidied up open-boundaries some more
1507     o Added non-hydrostatic code
1508     o Fixed some input data
1509     o Modified MPI start-up to work in "coupled" context.
1510    
1511    checkpoint19
1512     o Tidied up directory structure for verification experiments.
1513     o Added new code for open boundaries.
1514     o Corrected advective terms near boundaries.
1515     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1516     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1517     o Split default parameters out of ini_parms.F into set_defaults.F.
1518    
1519    checkpoint18
1520     o Further changes for optional code generation with
1521       CPP - ugh!
1522    
1523    checkpoint17
1524     o Beginning to incorporating modularity
1525       for supporting atmos. and ocean configs.
1526     o Small changes for TAMC complinace
1527     o New ultra simple test case. Barotropic box
1528       configuration "exp0".
1529    
1530    checkpoint16
1531     o Minor changes to exchange routines to support
1532       accumulation in reverse mode. Adjoint of an
1533       assignment is an addition.
1534     o Changes to support compilation by TAMC (LR(1)
1535       syntax) and by g77 under Linux ( 72 character
1536       limit ).
1537    
1538    checkpoint15
1539     Rewrote exchange routines to allow
1540     o General tile <-> tile connectivity.
1541     o TAMC reverse mode flag ( is this really needed? )
1542     o Variable width overlap and exchange region widths.
1543     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1544       shmput/shmget, VIA, SYSV shmem and every other cool
1545       communication method.
1546    
1547    checkpoint14
1548     Consistent isomorphism chages made. These allow dynamical core
1549     to support both pressure and meters as a vertical coordinate.
1550    
1551    checkpoint13
1552     Release which corrects global_max problem and a couple
1553     of KGM time-averaging diagnostic errors. Also contains
1554     a double-gyre experiment setup as well as the baseline
1555     4 degree global template. The double gyre template is
1556     organised to allow it to be applied automatically to
1557     the baseline configuration.
1558    
1559    branch-point-rdot
1560     A few tidy-ups have been made bt the real point of this
1561     check-point (excuse the pun) is to allow a branch to be
1562     made for the purposes of adding the rDot alterations.
1563     I don't want to commit the rDot to the main-trunk until
1564     we've actually tested it...
1565    
1566    checkpoint12
1567     Tidy up and added generic genmake script (formerly
1568     configure script).
1569     Released to testers.
1570    
1571    checkpoint11
1572     Re-arranged initialise() and introduced ini_vertical_grid()
1573     and ini_masks_etc().
1574    
1575    checkpoint10
1576     Introduced the configure script.
1577     Separated out the diags package.
1578     Added template for writing time-averages of tile/intermediate quantities.
1579     Updated SIZE.h in exp2 and made the data big-endian.
1580    
1581    checkpoint9
1582     MPI fix. Filename changes (meta/data). salbin*y stuff.
1583     General tidy-up.
1584     SST.bin SSS.bin added to verification/exp2
1585    
1586    checkpoint8
1587     Inludes time-dependant forcing and time-averaging.
1588     Works at 4x4 and 2.8125x2.8125 global
1589    
1590    checkpoint7-4degree-ref
1591     Branch from checkpoint7. Released for application to
1592     global modeling and general modeling - process studies, regional
1593     model etc..
1594     Configured for verification/exp2 - 4 degree global, two process.
1595    
1596  checkpoint7  checkpoint7
1597   Created by cnh   Created by cnh
1598   Simple 4 degree global simulation   Simple 4 degree global simulation

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