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revision 1.1 by cnh, Tue May 26 14:38:05 1998 UTC revision 1.281 by mlosch, Mon Apr 19 23:25:15 2004 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o small fixes in the cal-package:
7      - set reference date to first of January for the 'model'-calendar
8      - failing of cal_CheckDate in cal_FullDate now actually results in a
9        warning
10    o small modifications in exf-package to increase flexibility:
11      - change climtempfreeze from a constant to a runtime parameter that
12        is specified in data.exf_clim (default = -1.9)
13      - introduce runtime parameter windstressmax (default = 2.0) that is
14        specified in data.exf
15    o fix in pkg/thsice:
16      - update Evap (Tsf changes) to be consistent with Latent heat flux
17      - maintain snow precipitation unchanged (even if Tsf >=0).
18     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
19    
20    checkpoint52m_post
21    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
22      this does not change any of the results, because myIter=0 in swfrac always
23      lead to jwtype=2 (the default anyway), but the call makes little sense
24      as a default
25    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
26    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
27      atmospheric model (AIM) to use it ; add a "slab ocean" component.
28    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
29    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
30    o extending useSingleCpuIO option to work with new exch2 I/O format
31      - old-style, missing-tile I/O is still accessible by defining CPP
32        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
33    o monitor package can write to NetCDF files and/or STDOUT
34    o fix re-definition bug in MNC_GRID_INIT_ALL()
35    o doc/api_reference added
36      - a framework for building an API Reference Manual using all
37        the "protex" comments embedded in the code
38      - see pkg/generic_advdiff, pkg/mnc for examples
39    o MNC:
40      - make myThid the last argument for all subroutines
41      - new default for the grid files: NO halos
42      - add useMNC and other run-time flags
43      - separate per-file-group handling of the unlimited dimension
44      - early initialization of MNC w/ flags read at the eeboot stage
45        and lookup tables set in initialize_fixed
46      - write all MNC output to a freshly-created directory
47    o thermodynamics sea-ice (thsice) is now tested with testreport.
48    o test exp. advect_cs: use the standard cs32 grid ; update output.
49    o Added functionality to grdchk:
50      pick global i,j,k position (or nearest wet) where to perform check.
51    
52    checkpoint52l_post
53    o new land formulation:
54      a) use ground enthalpy as prognostic variable to ensure exact
55         energy conservation.
56      b) account for water temperature and for latent heat of freezing
57         in all processes (rain, run-off, ground storage)
58      c) compute surface and ground temperature implicitly.
59    o aim_v23 modification for new land model:
60      a) Treat separately land / ocean / sea-ice surface fluxes
61         to allow implicit computation of land & sea-ice surface temp.
62      b) add snow precipitation.
63    checkpoint52l_pre
64    
65    o fix problem (when 1 tile is empty) in min/max monitor.
66    o fix bug in timeAve (u,vZetatave in common block)
67    o no restoring terms under ice for pkg/seaice
68    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
69    o bug fix for pkg/seaice pickups
70    o change MNC call locations and add coordinate attributes
71    o mask vorticity at the corner ; affects global_ocean.cs output
72    o fix ini_curvilinear_grid ; test CS experiments with mpi
73    o aim.5l_cs: modify sea-ice fraction input file ; update output
74    o exf: Adding simple range check routine for exf fields after read
75    
76    checkpoint52k_post
77    o removed top-level directory "diags"
78      - we migrated these functions to pkg/timeave a long time ago
79    o fixed bug introduced in pkg/monitor
80    o accuracy ctrlprec = 32 insuffient for gradient checks using
81      averaged fields (I/O via cost_averages)
82      -> use ctrl.h in active_file*.F to control I/O precision.
83    o paramter list of CALL ADTHE_MAIN_LOOP
84    o added initial do_the_model_io to ecco
85    o set all ...Freq to zero after cost_final
86      taveFreq, dumpFreq, pChkptFreq
87    o MAIN and ECCO differentiability restored
88    
89    checkpoint52j_post
90    o fix nchklev in tamc.h for global_ocean...
91    o Bringing flow and store directives up-to-date
92    o Really weird thing!
93      call do_the_model_io from the_main_loop with parameters
94      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
95      TAF places a faulty re-call of initialise_varia
96      after cost_final call which should not be there!
97    checkpoint52j_pre
98    
99    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
100      error messages
101    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
102    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
103      debug output
104    o modfied mdsio_writefield.F to handle non-global files under exch2
105    o update AIM Cubed-Sphere exp (aim.5l_cs):
106      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
107    o update AIM Equatorial Channel exp:
108      use standard aim_v23 pkg and change the SST fields to be more realistic.
109    o globalFile now works with exch2
110    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
111      mon_vort3.F to make exch2 friendly with >1 tile per cube face
112    o limit timeave output for hi-res integrations
113    
114    checkpoint52i_post
115    o removed CPP_EEOPTIONS.h from verification/*/code
116    o updated the tiling for global_ocean_pressure
117    checkpoint52i_pre
118    
119    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
120      the old pkg/aim).
121    
122    checkpoint52h_pre
123    o shortened offending lines in exch2_send_rx?.template
124    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
125    o genmake2: add build & execute test for NetCDF code
126    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
127      old grid files, moved CPP_EEMACROS.h to pkg/exch2
128    o added useSingleCPUIO flag to monitor.F and mon_out.F
129    o added temporary hack for sea-ice dynamics on the cube:
130      metric terms are ignored and it is assumed that
131      there is no sea-ice on cube faces 1, 2, 4, and 5.
132    
133    checkpoint52f_post
134    o added exch2 cube routines to pkg/exch2
135    o modified hs94.cs-32x32x5 to use it
136    o added new grid files to hs94.cs-32x32x5
137    checkpoint52f_pre
138    
139    checkpoint52e_post
140    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
141      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
142    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
143      to work with implicit vertical advection and AB ;
144    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
145    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
146     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
147    checkpoint52e_pre
148    
149    o fix bug in impldiff when Nr=1 or Nr=2.
150    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
151    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
152    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
153      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
154    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
155    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
156    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
157    
158    checkpoint52d_post
159    o re-tiled many expts to allow comparison in multi-processor mode
160      - updated output accordingly
161      - changed hs94.128x64x5 to use intial T from file rather than use the
162        random number generator
163    o add infrastructure in model routines for fizhi and gridalt packages
164    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
165    o changes to permit hi-res, cubed-sphere, configuration
166      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
167      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
168      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
169        of surface winds for the cube
170      (A verification experiment, based on global_ocean.cs32x15, but with
171       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
172       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
173       complete with example surface forcing files and matlab scripts to look
174       at the output and compare it with that of global_ocean.cs32x15.)
175    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
176       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
177       to conform to the common rule.
178    o check-in the first version of the coupler + interfaces for multi-components
179       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
180       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
181       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
182       - ocean and atmos. share the same horizontal grid (no interpolation).
183       - exchanges between component and coupler is done in forward_step
184    o new verification experiment, cpl_aim+ocn:
185       coupled ocean - AIM atmosphere on cs32 grid.
186    
187    checkpoint52d_pre
188    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
189    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
190    
191    checkpoint52c_post
192    o Fixing OPTIONS files for use of exf:
193      - ALLOW_ECCO not needed
194      - ECCO_CPPOPTIONS.h should not be included from
195        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
196        as has been the case in the past
197      - All cal/exf related options are currently set in
198        single header file. Should remain so until we
199        agree on a consistent new policy.
200    o Removed all CPP options for cal package.
201      cal has no more CPP options.
202    o modified STOREs in GAD_ADVECTION
203    o corrected key comp. for passkey
204    
205    checkpoint52b_post
206    o new version: "thsice" of thermodynamic sea-ice pkg:
207     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
208     - modify fluxes but do not change theta directly;
209     - light cleaning of bulk_force pkg (still needed with thsice).
210     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
211       + output_thsice.txt to test thsice & bulk_force pkgs.
212    o put back grid & coriolis monitor output.
213    checkpoint52b_pre
214    
215    o call "do_the_model_io" at the beginning (=> dump initial state)
216    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
217    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
218      (need info on NUMBER_OF_PTRACERS)
219    o missing PTRACERS headers in some routines
220    o default tamc.h in pkg/autodiff supposed to crash
221      to ensure proper customization
222    
223    checkpoint52a_post
224    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
225      - moved surfaceTendencyTice from pkg/seaice to main code
226      - subroutine FREEZE_SURFACE now limits only surface temperature
227        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
228        => new output.txt for global_ocean.cs32x15 & global_with_exf
229      - keep the old version of FREEZE for backward compatibility;
230        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
231      - corresponding modifs for TAF directives
232    o added surface flux output variables to TIMEAVE_STATVARS
233    o time-averaged output for pkg/ptracers
234    o fix problem with ECCO-related divided adjoint
235      snapshot file was missing some ad-variables,
236      but no warning issued by TAF
237    
238    checkpoint52a_pre
239    o some bug fixes for #undef REAL4_IS_SLOW
240    
241    checkpoint52 = ecco_c52_e35
242    o after testing adjoints of checkpoint51u_post
243    
244    checkpoint51u_post
245    o this is the post-merge tag of the ecco-branch
246      (needs another clean checkout and re-testing)
247    o various natl_box_adjoint configs and results
248      but no input fields
249    o obcs adjoint not yet merged!
250    o adding ECCO global 1x1 and 2x2 degree configs
251    o updated/extended some store directives for seaice
252    o pkg/ecco now containes ecco-specific part of cost function
253    o top level routines the_main_loop, forward_step
254      supersede those in model/src/
255      previous input data.cost now in data.ecco
256      (new namelist ecco_cost_nml)
257    o in ctrl/ cleaned some cross-dependencies and updated CPP options
258    
259    checkpoint51t_post
260    o this is the pre-merge tag of the ecco-branch
261    
262    checkpoint51s_post
263    o cleanup: removed various obsolete #define-s
264    o pkg/grdchk
265      - renamed 'ph-grd 3' to 'grad-res'
266      - merged from ecco-branch
267        (remaining bug fixes for obcs gradient checks)
268      - additional high-precision output for testreport
269        (grep for 'precision_grdchk_result')
270    
271    checkpoint51r_post
272    o cleaned up or removed CPP_OPTIONS.h files
273    o updated results for some of the tests to reflect the new
274      optfiles (-ieee: -O0 instead of -O3)
275    
276    checkpoint51q_post
277    o cd_code:
278      - moved cd_scheme.F -> cd_code_scheme.F
279      - separate read_checkpoint from cd_code_ini_vars.F
280      - separated cd_code part from write_checkpoint
281      - updated AD_SOURCE, generated .flow
282      - added CD_CODE_VARS.h to the_main_loop
283      - Moving cd_code specific store dir.s to pkg/cd_code
284    o ctrl package totally restructured
285      - pack/unpack now optional and decoupled from
286        xx_/adxx_ I/O
287      - ctrl_pack/unpack cleaned
288        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
289      - confined inclusion of AD_CONFIG.h to where necessary.
290    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
291    
292    checkpoint51p_post
293    o create initial cd_code package
294      - WARNING: the initialization of fields within packages
295        is broken because INI_FIELDS (where READ_CHECKPOINT is
296        called) is called *before* PACKAGES_INIT_VARIABLES.
297        This seems to be backwards since
298        1) its important to initially zero the entire field including
299           the "halo" region
300        2) zeroing needs to be done *before* reading pickup info
301           and the pickup call might or might not happen in any
302           particular run
303      - this needs an overhaul for R2
304    o cleanup verification/*/code/GMREDI_OPTIONS.h
305    o cleanup testreport
306    
307    checkpoint51o_post
308    o bringing AD-related verif's up to date with genmake2
309      - carbon/
310      - global_ocean.90x40x15/
311      - hs.94.1x64x5/
312      - (front_relax/ )
313    o (more) consistent directory structure for AD-related verif.'s
314    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
315    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
316    o bug fix in find_alpha.F for MDJWF:
317      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
318        change rho -> rho-rhoConst
319      - replace call find_rho to find_rhonum
320    o initialisation of rFlx extended to full array (required by TAF)
321      and shifted to thermodynamics
322    o removed PTRACERS.h in ptracers routine
323    o added surfacetendencyPtr to S/R parameter list pracers_forcing
324    o Correcting initialisations for fVerU, fVerV.
325    o helping TAF to recognize dependency on kUp for
326      fVerU, fVerV
327    o Replacing delZ by delR in pkg/ctrl/
328    checkpoint51o_pre
329    
330    o undid all of cp51 pending some cleanups and discussion
331    o added the [#include "AD_CONFIG.h"] statement to all files that need
332       it for adjoint/tl #defines
333     o re-worked the build logic in genmake2 to support AD_CONFIG.h
334     o removed tools/genmake since it no longer works
335    
336    checkpoint51n_post
337    o modifications to make FREEZE flux visible to pkg/kpp
338      - moved surfaceTendencyTice from pkg/seaice to main code
339      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
340      - subroutine FREEZE now limits only surface temperature
341        (this means new output.txt for global_ocean.90x40x15,
342         global_ocean.cs32x15, and global_with_exf)
343    o added surface flux output variables to TIMEAVE_STATVARS
344    
345    checkpoint51n_pre
346    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
347    o added [#include "AD_CONFIG.h"] to all files that use the following
348      defines:
349      - ALLOW_ADJOINT_RUN
350      - ALLOW_TANGENTLINEAR_RUN
351      - ALLOW_ECCO_OPTIMIZATION
352    
353    checkpoint51m_post
354    o incorporating changes to get TAMC/TAF working in genmake2
355      - added new TAMC/TAF targets to the Makefile
356      - various cleanups related to package handling
357      - these changes should have no impact on the forward model
358    
359    checkpoint51l_post
360    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
361     - faster algorithm for cal_addtime.F
362     - higher precision arithmetic, where needed
363     - pkg/exf *startdate variables changed from calendar date to
364       model integration time
365    
366    checkpoint51l_pre
367    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
368    o enable to apply restoring on S & T only in a latitude band.
369    o update output (external_forcing_surf modif. change truncation errors)
370       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
371    
372    checkpoint51k_post
373    o change default to: useNHMTerms=.FALSE.
374     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
375       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
376     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
377        exp1, ideal_2D_oce
378     - change data file of oceanic exp (leave the results unchanged for now)
379       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
380    o set gravitySign automatically according to the vertical coordinate used
381      (and change sign: back to "logical" value: +1 when R increases downward)
382    o added an include barrier to the default CPP_OPTIONS.h and
383      removed the #include "PACKAGES_CONFIG.h" from it
384    o fix a bug in mom_fluxform (from chk51j_post)
385    
386    checkpoint51j_post
387    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
388    o adjusted some flow directives (dynamics, thermodynamics)
389    o added cubed-sphere case to test cost function
390    o heckpoint_lev?_directives.h now include
391      pkg-specific directives, whenever those are enabled.
392    o Moving pkg-specific flow directives to corresponding pkg
393      Moving pkg-specific differentiation list to corresponding pkg
394      Moving pkg-specific checkpoint-lev storing to corresponding pkg
395      ---> conventions are
396           - pkg_ad.flow
397           - pkg_ad_diff.list
398           - pkg_ad_check_lev?_dir.h
399    
400    checkpoint51i_post
401    o merge of the branch-genmake2
402      - knowingly breaks the older genmake
403      - automatic generation of all ALLOW_${PKG_NAME} defines
404      - new testreport supersedes older testscript
405    o large number of package inclusion and header cleanups
406    checkpoint51i_pre
407    
408    o new output for adjoin of global ocean vector invariant
409    o fix for checkpoint of thermodynamic seaice and bulk_force
410    o Steph gchem various cleanups
411    
412    checkpoint 51h_pre
413    o fixed some single quotes
414    o modify gchem pkg to be more versatile
415    o modifications to clean up dic pkg
416    o add pkg/cfc
417    
418    checkpoint51g_post
419    o provide links for ARPACK and ADM*TLM
420    o start removing verification/vero/
421    o update AD-related stuff
422      (in particular some IF-statements in model/src/ routines)
423    o adding to verification/global_ocean.90x40x15/ adjoint of
424      vector invariant setup
425    
426    checkpoint51f_post
427    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
428    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
429      of tracer Green's fucntions for ocean inversion project.
430    
431    checkpoint51f_pre
432    o Added on-the-fly spatial interpolation capability
433        "USE_EXF_INTERPOLATION" to pkg/exf.
434      - This is a temporary Cartesian-grid hack until
435        the super-duper ESMF coupler becomes available.
436      - See verification/global_with_exf/README for usage example.
437      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
438        flags and modified pkg/seaice accordingly.
439    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
440        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
441        non-local transport term.
442    
443    checkpoint51e_post
444    o pkg/mom_vecinv:
445      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
446      - add time-ave diagnostic of vorticity advection.
447    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
448    o atmospheric geopotential: - include water vapor effect;
449                                - use p^kappa in p* scaling.
450    o land pkg: read initial state from files.
451    o AIM : add stratospheric drag in the upper level
452    
453    checkpoint51d_post
454    o change function ILNBLNK (=> last non-blank char.) to return zero
455      (instead of the string length) when the string. char is empty
456    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
457    o modif's to restore TAMC compatibility
458      - avoid "_d" constructs in PARAMETER declarations
459      - avoid interrupting lines by comment lines
460    o Use cluster local disks for purely local I/O
461      vs. globally visible disks needed for ctrl stuff
462      (merged from ecco-branch)
463      - new active_file_loc... and mdsio_..._loc routines
464      - affected packages: autodiff, ctrl, grdchk, mdsio
465    
466    checkpoint51c_post
467    o introducing integer flag debugLevel
468      - debLevZero: suppress all output
469      - debLevA: standard
470      - debLevB: equivalent to current debugMode=.TRUE.
471    o introducing pathname variable mdsioLocalDir for mdsio
472      that can be specified at runtime
473      (relevant for cluster I/O to local disk)
474    `
475    >>>checkpoint51b_post
476    adjoint of ptracers
477    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
478    o extended state in checkpoint_lev?, etc.
479    o alternative ctrl/cost with tr1 or ptracer
480    o new comlev1_bibj_ptracers
481    o new ptracers.flow
482    o made ptracers_forcing same as external_forcing_s
483    o added verification for adjoint with ptracers
484      - adm. grdchk fail so far
485      - tlm. grdchk OK
486      - checked tapelev/comlev recomputations: OK
487    <<<checkpoint51b_pre
488    
489    checkpoint51a_post
490    o added code for biogeochemistry package
491      - new pkgs: dic, gchem
492      - new subroutine in ptracers
493    o modify code for biogeo packages
494      - in model/src and pkg/ptracers
495    
496    checkpoint51
497    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
498      - autodiff, ctrl, exf, grdchk, seaice
499      kept separate packages
500      - cost, ecco, obcs
501    o updating verification/internal_wave, verification/lab_sea
502      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
503    
504    checkpoint50i_post
505    o Preparing next differentiable checkpoint and sync
506      of MAIN vs. ecco-branch
507      - 1st step: this one is differentiable
508      - 2nd step: next(! not this) checkpoint will have updated packages
509                  from ecco-branch)
510    
511    checkpoint50h_post
512    o new package "land": provide surface BC for AIM.
513    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
514    o AIM: use true log-P extrapolation for near surface temp (= as in
515        F.Molteni paper) ; update aim.5l_cs output.
516    o New variable in PARM03 for more flexible pickups
517    o somewhat cleaned package initialisation sequence for
518      ctrl/ cost/ ecco/ in packages_... routines
519    
520    checkpoint50g_post
521    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
522      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
523      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
524        made the default because of faster convergence than ADI
525    
526    checkpoint50f_post
527    o exf totally restructured
528      - replaced all exf_set_ routines by one generic exf_set_gen.F
529        and made sure it's still differentiable
530      - split exf_getffields.F into new exf_bulkformulae.F
531      - exf_inscal_/exf_outscal_ suffixes consistent with field names
532      - updated adjoint/makefile and relevant verif. accordingly
533    
534    checkpoint50f_pre
535     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
536          + change Evap over land. (update aim.5l_cs output)
537     o added missing .cvsignores and made uniform across expts
538     o changed configuration of tidal_basin_2d expt
539     o added pkg/debug functions for tracing code in fatal crashes
540     o tidied pkg/monitor to use MONITOR_OPTIONS.h
541     o new fn in pkg/monitor to stop model if solution grows too big
542     o removed lots of single quotes from comments
543    
544    checkpoint50e_post
545    o make KPP work with PTRACERS
546     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
547       nearly a copy of kpp_transport_s
548     - there is no analogue to SurfaceTendencyS, so I have to use
549       gPtr(of the surface layer) instead
550    o add a new platform SunFire+mpi (SunFire 15000) to genmake
551    checkpoint50e_pre
552    
553    checkpoint50d_post
554    o change kpp output from multiple-record state files to single-record state
555      files analogous to write_state.F
556    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
557      analogous to the cg2d-related output.
558    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
559      so that writing to internal file fn (with length 512) fails.
560    checkpoint50d_pre
561    
562    checkpoint50c_post
563    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
564    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
565    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
566    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
567    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
568    
569    checkpoint50c_pre
570    Merging from release1_p13:
571    o bug fix for pkg/seaice dynamic solver
572    o Added SEAICE_initialHEFF to pkg/seaice
573    
574    checkpoint50b_post
575    o store u*,v* in gU,V instead of in guNm1,gvNm1
576    o in order to put the momForcing out of the Adams-Bashforth:
577      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
578      to timestep.F
579    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
580    o re-generate output for highly sensitive test-exp:
581       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
582    
583    checkpoint50b_pre
584    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
585    o corrected CPP option mismatch in exf_Bulk... functions for case
586      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
587    
588    checkpoint50a_post
589    o Bug fix for merging between c50 and KPP.
590      ikey was passed from thermodynamics to kpp_calc via
591      common block rather than being recomputed in kpp_calc,
592      in contradiction with new key itdkey.
593      New key ikppkey created, and tamc.h headers updated.
594    
595    checkpoint50
596    - 2nd step of merge with ecco-branch:
597      merge changes in ecco-branch back into main trunk
598    - bug fix in find_alpha
599    - more storing in gmredi_calc_tensor.F, kpp_routines.F
600    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
601    - merged some sliced AD support routines
602    
603    checkpoint49
604    merged from ecco-branch:
605    o exf:
606      - Enable initialisation of forcing fields to constant
607        (runtime) values.
608      - in exf_getffields.F
609        Reduce i-/j-loop to interior domain, discarding overlaps.
610        That also fixes wrong TAF-key computations for key_1, key_2
611        with bulf formulae.
612      - exf_init.F modify #ifdef for exf_init_evap
613      - exf_getffieldrec.F, ctrl_getrec.F
614        The following INT-usages are not safe:
615          fldsecs  = int(fldsecs/fldperiod)*fldperiod
616          fldcount = int(fldsecs/fldperiod) + 1
617        and were modified.
618    o autodiff: checkpoint_lev...
619      - updated storing for bulk formulae (some arrays were missing)
620      - added state for seaice package
621      - synchronized with main branch
622    o DIVA:
623      Modif.s in
624      - the_main_loop.F
625      - the_model_main.F
626      and added cost_final_restore.F cost_final_store.F
627      o With these changes, it is possible to fully separate
628        the first forward run to compute the cost function (mdthe_main_loop)
629        and adjoint runs over individual DIVA intervals (adthe_main_loop)
630        into separate model executions.
631        This enables better tuning of DIVA to given queue sizes.
632      o Loss of cost function value in consecutive DIVA runs is
633        fixed by storing to 'costfinal' file.
634      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
635        beginning/end of adjoint integration is accounted for.
636      The current changes apply to TAF-1.4.26.
637      TAF has one remaining bug, requiring one manual change
638      (see MITgcm manual).
639    o cal: synchronized between MAIN and ecco-branch
640    
641    checkpoint48i_post
642    o Changes to restore differentiability of code w.r.t. previous tag
643      (mostly adding new routines to make list and replacing
644      pressure by totPhiHyd).
645    o Updated and merged grdchk package
646      - has both ADM and TLM checks
647      - works for single- and multi-proc.
648      - output cleaned
649      - worked successfully for parallel DIVA
650    o genmake:
651      - Adding -platform=SP4
652      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
653    o Modif. for DIVA:
654      ctrl_unpack should not be called in intermediate DIVA interval.
655      (similar thing would apply for active files such as
656      tbar, sbar, psbar, which should not be reinitialised;
657      only relevant for ecco-branch)
658    
659    checkpoint48h_post
660    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
661    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
662    o Added SEAICE_initialHEFF to pkg/seaice
663    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
664    
665    checkpoint48g_post
666    --- EOS:
667    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
668      store total Potential in totPhyHyd for diagnostics & EOS.
669    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
670    --- Pressure/geopotential gradient:
671    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
672    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
673      ( changes results of global_ocean_pressure )
674    o NLFS + z-coord.: add eta*Rho' contribution.
675    o accurate phiHyd when using interface-W at the middle between 2 centers
676     ( changes results of ideal_2D_oce )
677    o includes r* 2nd term in potential gradient.
678    
679    checkpoint48f_post
680    Merging from release1_p12:
681    o Modifications for using pkg/exf with pkg/seaice
682      - improved description of the various forcing configurations
683      - added basic radiation bulk formulae to pkg/exf
684      - units/sign fix for evap computation in exf_getffields.F
685      - updated verification/global_with_exf/results/output.txt
686    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
687      (SBO) core products, including oceanic mass, center-of-mass,
688      angular, and bottom pressure (see pkg/sbo/README.sbo).
689    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
690      to avoid negative values in shallow regions.
691      - updated verification/natl_box/results/output.txt
692      - updated verification/lab_sea/results/output.txt
693    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
694    o Added useSingleCpuIO option (see PARAMS.h).
695    o Updated useSingleCpuIO option in mdsio_writefield.F to
696      work with multi-field files, e.g., for single-file pickup.
697    o pkg/seaice:
698      - bug fix in growth.F: QNET for no shortwave case
699      - added HeffFile for specifying initial sea-ice thickness
700      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
701    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
702      kpp_transport_t.F, forward_step.F, and the_main_loop.F
703    o pkg/seaice:
704      - adjoint-friendly modifications
705      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
706    
707    checkpoint48e_post
708    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
709    o dynamics: change definition of computational domain & adapt mom_fluxform
710      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
711    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
712        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
713        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
714        global_ocean.90x40x15 global_with_exf global_ocean_pressure
715        inverted_barometer solid-body.cs-32x32x1
716      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
717    
718    checkpoint48d_post
719    o in preparation for r*:
720     a) use pre-computed gradient of hydrostatic potential:
721        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
722     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
723        => affects results of glob_oce_pressure (different truncation error)  
724      update output.txt of ideal_2D_oce & global_ocean_pressure
725    
726    checkpoint48d_pre
727    o in preparation for r*:
728      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
729      pass the 2 comp. of the grad. as arguments to momentum S/R.
730      but for the moment, only used if it does not change the results.
731    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
732    
733    checkpoint48c_post
734    Modifications in treatment of initial flux forcing controls
735    to avoid extra storing of flux fields.
736    
737    checkpoint48c_pre
738    o Added tidal_basin_2d experiment (currently 1D!)
739    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
740    
741    checkpoint48b_post
742    o r* coordinate added in #ifdef NONLIN_FRSURF block.
743     (modification to pressure gradient not yet implemented)
744    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
745      (for U & V) that are used for vertical advection of momentum.
746    
747    checkpoint48a_post
748    o In preparation for r*, use temp. array to compute vertical transport
749       in flux-form momentum pkg. => change results of few test-exp.
750      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
751                        lab_sea, natl_box & plume_on_slope
752    
753    checkpoint48
754    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
755    
756    checkpoint47j_post
757    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
758    o moved adexch from forward_step to addummy_in_stepping
759    o added exch in ctrl_map_...
760    o aveFreq.=0. at end of cost_final to avoid overwrite in
761      reverse checkpointing loop
762    o Yet more changes in gmredi:
763      * adgmredi_calc_tensor
764        avoiding all recomputation of gmredi_slope_limit
765      * adgmredi_x/y/rtransport
766        added flag for excessive storing to avoid recomp. of
767        u/v/rtans, dTdx/y/z
768        -> this is not really necessary and very memory-consuming
769      * adgmredi_slope_psi:
770        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
771      * gmredi_slope_limit
772        re-activated full calculation of taperfct for case 'ac02'
773    o updating verification/ adjoints of carbon, global_ocean.90x40x15
774    
775    checkpoint47i_post
776    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
777    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
778      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
779    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
780    o gmredi: fix few bugs.
781    
782    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
783    This will be a good checkpoint to plug into the ecco-branch.
784    o few modif.'s to get latest version adjointed
785      (mainly kick out code in ini_linear_phisurf)
786    o modif's to run adjoint with exactConserv
787    o case GM_BOLUS_ADVEC should be cleaned
788      S/R gmredi_slope_psi should be cleaned
789    o verification/carbon now has exactConserv=.TRUE.
790    
791    checkpoint47g_post
792    o time-average AIM output: becomes independent from statvars time-average
793      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
794    o After TAF bug fix:
795      Tested adjoint of gmredi package.
796      Tests were done with checkpoint47 rather than with latest
797      checkpoint47f_post since the latter is broken for the adjoint
798      verification/carbon/ contains both ADM and TLM gradient checks.
799    Here they are, before they get changed/lost/stolen.
800    Mostly modif.'s to fix numerical sensitivities.
801    Gradient checks OK for
802    - GM_taper_scheme:
803      * clipping
804      * ac02
805      * linear
806      * glw91
807      * dm95
808      * ldd97
809    - GMREDI_OPTIONS:
810      * GM_VISBECK_VARIABLE_K
811      * GM_NON_UNITY_DIAGONAL
812      * GM_EXTRA_DIAGONAL
813      * GM_BOLUS_ADVEC
814    in conjunction with data.gmredi parameters to be checked in
815    in a few minutes under verification/carbon/code/
816    
817    checkpoint47f_post
818    Merging from release1_p10:
819    o modifications for using pkg/exf with pkg/seaice
820      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
821        and SEAICE_EXTERNAL_FLUXES
822      - pkg/exf CPP options EXF_READ_EVAP and
823        EXF_NO_BULK_COMPUTATIONS
824      - usage examples are Experiments 8 and 9 in
825        verification/lab_sea/README
826      - verification/lab_sea default experiment now uses
827        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
828    
829    checkpoint47e_post
830    o created a tag prior to creating a branch
831    
832    checkpoint47d_post
833    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
834      at the bottom boundary had an erroneous half slip boundary condition
835    o added bottom drag and no slip boundary condition capabilities to
836      oceanic pressure coordinates code
837    o added new verification experiment global_ocean_pressure, this experiment is
838      also described in the tutorial section of the manual
839    checkpoint47d_pre
840    
841    checkpoint47c_post
842    o Added a verification experiment for a global cubed-sphere ocean run
843      -  verification/global_ocean.cubed32x32x30
844      -  uses pkg/therm_seaice and pkg/bulk_forcing
845    
846    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
847    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
848      when using P-coordinate; only implemented for atmospheric config.
849    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
850      NOTES: requires option NONLIN_FRSURF to be "#define".
851    o update advect_xz/results/output.txt (left from checkpoint44g_post)
852    
853    checkpoint47b_post
854    Merging from release1_p9:
855    o pkg/seaice
856      - removed GOTO's and added taf directives
857      - double precision constants to reduce the g77 (Linux)
858        to F77 (SGI) differences reported in release1_p8
859    o tools/genmake
860      - added SGI options
861    o verification/testscript
862      - updated to that of checkpoint47a_post
863    o verification/global_ocean.90x40x15/input/eedata
864      - modified for SGI f77 compatibility
865    o verification/lab_sea
866      - added description of sea-ice model
867      - added missing matlab routines
868      - added test of thermodynamics parallelization
869    
870    checkpoint47a_post
871    o new pkg: aim_v23
872     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
873       for now, keep the same surface forcing as before.
874     - Part-Cell implemented into AIM; check that Heat & Water are conserved
875     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
876     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
877    o add diagnostic of surface correction term in monitor output
878    
879    o bulk_force and therm_seaice
880    - Two packages:  bulk_force (Bulk forcing)
881      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
882    - Earlier integration from Stephaine Dutkiewicz
883      and Patrick Heimbach.
884    - Two ifdef statements for compile time,
885       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
886    
887    checkpoint47
888    differentiable version of checkpoint46n_post
889    o bug fix in quasihydrostaticterms
890    o * "clean" adjoint code (in terms of extensive recomputations)
891        can now be obtained for all GMREDI options (i.e. for
892        - GM_VISBECK_VARIABLE_K
893        - GM_NON_UNITY_DIAGONAL
894        - GM_EXTRA_DIAGONAL
895        - GM_BOLUS_ADVEC )
896      * However, wrong gradient check problem remains unsolved.
897      * New CPP options have been introduced for different
898        tapering schemes
899    o external_fields_load now part of differentiation list
900    o pressure needs multiple storing;
901      would be nice to have store_pressure at beginning or
902      end of forward_step, e.g. by having phiHyd global (5-dim.)
903      (NB: pressure is needed for certain cases in find_rho,
904      which is also invoked through convective_adjustment).
905    o recomputations in find_rho for cases
906     'JMD95'/'UNESCO' or 'MDJWF' are OK.
907    o #define ATMOSPHERIC_LOADING should be differentiable
908    o ini_forcing shifted to begining of initialise_varia
909    o Incorporating QNVS line search routines into MITgcm
910      (this is separate code, and therefore not under pkg)
911      lsopt/, optim/
912    o Updated verification/carbon/
913      - #define GM_VISBECK_VARIABLE_K
914      - GM_taper_scheme    = 'ldd97'    
915    
916    checkpoint46n_post
917    Merging from release1_p8:
918    o verification/natl_box:
919      updating new external_fields_load routine
920    o New package: pkg/seaice
921      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
922      The sea-ice code is based on Hibler (1979-1980).
923      Two sea-ice dynamic solvers, ADI and LSR, are included.
924      In addition to computing prognostic sea-ice variables and diagnosing
925      the forcing/external data fields that drive the ocean model,
926      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
927      The implied surface heat flux is then stored in variable
928      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
929      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
930      non-local transport term.  Because this call precedes model
931      thermodynamics, temperature under sea-ice may not be "exactly" at
932      the freezing point by the time theta is dumped or time-averaged.
933      N.B.: fairly large differences in accuracy occur across
934            different platforms/compilers; comparison between
935            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
936            generated output gives:
937       T           S           U           V
938      C D M    c        m  s        m  s        m  s        m  s
939      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
940      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
941      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
942    
943      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
944    o GAD:
945      - generated new common blocks to account for call of
946        same gad routines with differing traceridentities
947        (needed to modify tracerIdentity indices in GAD.h)
948      - generated separate common blocks for case useCubedSphereExchange
949        (Department of Futurology)
950      - parameter lists to gmredi_?transport: added tracerIdentity
951      - added new key indices to tamc.h
952    o external_fields_load:
953      - added this routine to TAF list
954      - needed to make some common blocks global and additional storing
955        along the same lines as exf package (checkpoint_lev?_directives.h)
956    o exf:
957      updated external forcing package
958      - bug fixes carried over from ecco-branch
959        (missing OBCS_OPTIONS.h in two routines)
960      - enable easy to use "no forcing".
961      - added exf I/O for atmospheric loading
962      - added exf I/O for runoff data
963      - transfered scaling between exf <-> MITgcm to exf namelist
964    o Adding new verification experiment global_with_exf.
965      This verification experiment is almost identical to the
966      global_ocean.90x40x15 experiment, except that it uses
967      the exf (and cal) package instead of the
968      external_fields_load routine (cf README file).
969    
970    checkpoint46m_post
971    o modified testscript to return -- when there are no lines of "%MON" output
972    o added new flag "quasiHydrostatic" for QH mode
973      and new routine quasihydrostaticterms()
974    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
975      New routine: mom_u_coriolis_nh()
976    o fixed sign of non-hydrostatic metric terms in u and v equations.
977      Depend on correct sign of gravitySign.
978    o added work.pc* to .cvsignore in aim directories using ifc
979    o introduced flag for controllin non-hydrostatic metric terms
980    o removed gravitySign from PARM04
981    o switched to g77/ifc from pgf77 in aim experiments
982    
983    checkpoint46l_post
984    o made convective adjustment work with pressure coordinates:
985     - changed the direction of k-loop in convective_adjustment.F for the
986       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
987     - adjusted the reference pressure k-index in convective_adjustment.F
988     - adjusted the convection condition in convect.F (in analogy to
989       calc_ivdc.F)
990     - convective_adjustment no longer computes anything on the halos
991     - removed the warnings about negative salinity from find_rho.F and
992       find_alpha.F; instead the new routine look_for_neg_salinity, called
993       at the beginning of find_rho, find_alpha, and find_beta, does a
994       check of the entire slice, if CPP-option
995       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
996    checkpoint46l_pre
997    
998    checkpoint46k_post
999    o fixed the verification/global_ocean.90x40x15 experiment:
1000     - new bathymetry (the world according to A., JMC, and M.)
1001     - new initial fields and forcing fields (*.bin files)
1002     - new POLY3.COEFFS (for the next release one should switch to a full
1003       equation of state: JMD95P or MDJWF)
1004     - fixed several errors and redundancies in the data file
1005     - experiment uses looped cells
1006     - added matlab directory with diagnostic scripts for plotting of output
1007    
1008    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
1009     - read AIM physics parameters from a file (data.aimphys)
1010     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
1011    
1012    checkpoint46j_post
1013    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
1014    o move wVel computation at the end of the time step, in S/R integr_continuity
1015    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
1016    o update timeave pkg for wVel diagnostic.
1017    checkpoint46j_pre
1018    
1019    checkpoint46i_post
1020    o Clean up AIM package (and keep the results unchanged):
1021      include CPP_OPTION and use IMPLICT NONE in all routines ;
1022      declare all the variables _RL ; use _d 0 for all numerical constants.
1023      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
1024    
1025    checkpoint46h_post
1026    o cleaned up the use of rhoNil and rhoConst.
1027      - rhoNil should only appear in the LINEAR equation of state, everywhere
1028        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
1029        and the dynamical equations are all divided by rhoConst
1030    o introduced new parameter rhoConstFresh, a reference density of fresh
1031      water, to remove the fresh water flux's dependence on rhoNil. The default
1032      value is 999.8 kg/m^3
1033    o cleanup up external_forcing.F and external_forcing_surf.F
1034      - can now be used by both OCEANIC and OCEANICP
1035    checkpoint46h_pre
1036    
1037     Added code to convert surface volume flux (fresh water) into
1038     a mass flux when using P coordinates in the ocean (OCEANICP).
1039     Note: It assumes you have set rho0=rhoConst=density of fresh water.
1040    
1041    checkpoint46g_post
1042    o Include a new diagnostic variable phiHydLow for the ocean model
1043      - in z-coordinates, it is the bottom pressure anomaly
1044      - in p-coordinates, it is the sea surface elevation
1045      - in both cases, these variable have global drift, reflecting the mass
1046        drift in z-coordinates and the volume drift in p-coordinates
1047      - included time averaging for phiHydLow, be aware of the drift!
1048    o depth-dependent computation of Bo_surf for pressure coordinates
1049      in the ocean (buoyancyRelation='OCEANICP')
1050      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
1051        Theta, Salinity, and Pressure in the parameter list. This routine is
1052        presently contained in find_rho.F. This routine does not give the
1053        correct density for 'POLY3', which would be a z-dependent reference
1054        density.
1055    o cleaned up find_rho
1056      - removed obsolete 'eqn' from the parameter list.
1057    o added two new verification experiments: gop and goz
1058      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
1059    checkpoint46g_pre
1060    
1061    checkpoint46f_post
1062    o Enable tangent linear (forward mode) gradient checks:
1063      - extended active file handling to g_... files
1064      - added TANGENT_SIMULATION to theSimulationMode
1065      - extended grdchk package accordingly
1066    o added tangent linear setup in verification/carbon/code_ftl
1067    o added adjoint setup in verification/front_relax/code_ad
1068    
1069    checkpoint46e_post
1070    o Added new equation of state -> MDJWF
1071      - EOS of McDougall et al., 2002, JAOT, submitted
1072      - caveat: the equation of state is only valid for a smaller (more
1073        realistic?) range of values than JMD95P/Z and UNESCO
1074      - added masks to the calculation of pressure in store_pressure
1075      - added more check values for density in check_eos (ini_eos.F), some of
1076        the old check values are out of the range of the MDJWF-eos, so don't
1077        expect perfect matches for those
1078    checkpoint46e_pre
1079    
1080    checkpoint46d_post
1081    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
1082      'OCEANICP', also initialised field pressure correctly in ini_eos in the
1083      case of pressure coordinates. eosType='JMD95Z' in
1084      combination with buoyancyRelation='OCEANICP' now causes an error.
1085    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1086      in find_alpha/beta.
1087    checkpoint46d_pre
1088    
1089    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
1090      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
1091    
1092    checkpoint46c_post
1093    o Changes necessary for ocean in p-coordinates
1094     -  Added new buoyancy relation = 'OCEANICP'
1095     -  Added new parameters = gravitySign (this used to be contained inside
1096        the factor dRdZ which I added when we first switched to R coordinates).
1097     X GM/Redi is not compatible (yet)
1098     X bottom drag and no-slip need to be debugged.
1099    checkpoint46c_pre
1100    
1101    checkpoint46b_post
1102    o Added new equation of state -> JMD95Z and JMD95P
1103      - EOS of Jackett and McDougall, 1995, JAOT
1104      - moved all EOS parameters into EOS.h
1105      - new routines ini_eos.F, store_pressure.F
1106    o Added UNESCO EOS, but not recommended because it requires
1107      in-situ temperature (see JMD95)
1108    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1109      unesco.f to be used with POLY3
1110    checkpoint46b_pre
1111    
1112    checkpoint46a_post
1113    o Added (atmospheric) pressure loading
1114      - new field in FFIELDS.h, etc...
1115      - new cpp flag ATMOSPHERIC_LOADING
1116    o Changed hFacC to _hFacC in calc_phi_hyd.F
1117    o Added SHORTWAVE_HEATING to some files for consistency
1118    checkpoint46a_pre
1119    
1120    checkpoint46
1121    further merges from release1_p5
1122    o new ctrl package
1123      - adopted from ECCO environment to enable optimization
1124      - added Eliassen Palm fluxes to controls
1125    o added Eliassen Palm flux controls to gradient check package
1126    o cost package
1127      - Compatible with new ctrl package
1128      - added Eliassen Palm cost hooks
1129      - modif's of existing cost functions
1130    o Adjoint-related bug fixes in kpp:
1131      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1132      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1133    o autodiff package
1134      - flow directives:
1135        + new for S/R do_the_model_io
1136        + enhanced for S/R checkpoint
1137        + new gmredi.flow
1138      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1139        disable adcommon.h/g_common.h by default.
1140      - fixed problem for adjoint of global_max
1141    o modified verification/carbon/
1142    o New setup for adjoint of global_ocean
1143    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1144    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1145    o incorporated hooks for sponge layer code (external_forcing.F)
1146    
1147    checkpoint45d_post
1148    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1149    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1150      (affects plume_on_slope "cg2d" output)
1151    o add new parameter deltaTfreesurf for free-surface time stepping
1152    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1153    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1154    o change phiMin in exp1 (to agree with documentation)
1155    o add new flags:
1156     - T,S forcing inside/outside Adams-Bashforth
1157     - turn off temp,salt advection and/or forcing
1158     - for each tracer, define internal flag for multiDimAdvection & A-B
1159    o monitor: change definition of KE to check conservation of Energy
1160    
1161    checkpoint45c_post
1162    o Removed f90 comments ("!")
1163    o Modified initialisations to enable exf package for MITgcm
1164      (without invoking ECCO_PACKAGE).
1165    o modifications to gradient check package (Martin Losch)
1166      - enable centered differences
1167      - modified format of standard output
1168    
1169    checkpoint45b_post
1170    o cleaned exchange calls in cg2d
1171    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1172    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1173      to configure barotropic setup (Martin Losch)
1174    o moved some initialisations within bi,bj loop in dynamics
1175      (TAF flow dependency)
1176    o in initialise_varia, moved call packages_init_variables
1177      before convective_adjustment_init
1178      (corresponding adjustment of TAF tape initialisation).
1179    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1180    
1181    checkpoint45a_post
1182    o compute Rho over the whole domain (extend iMin,jMin indices)
1183    o specific exchange for X-slice domain (case Ny=1)
1184    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1185    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1186    
1187    checkpoint44h_post = checkpoint45
1188    o Fix to restore differentiability:
1189      place at which packages_init_variables is called in
1190      initialise_varia is crucial for reverse control flow.
1191    o modifications in GMRedi to enable stable adjoint
1192      (corresponding modif's in thermodynamics, dynamics)
1193    o added missing hook for sponge layer code in external_forcing
1194    o modified test cost functions
1195    o storing in gad_advection (plus removal of write(0,*)!
1196    o missing headers TR1.h added in convective_adjustment routines
1197    o errorMessageUnit set non-equal zero in eeboot
1198      (conflict on some platforms, e.g. IBM SP3)
1199    o modified carbon verif.
1200    
1201    checkpoint44h_pre
1202    o vertical grid option: allow to put the Interface at the middle between
1203      2 cell-centers ; replace delZ in pkg/kpp by drF.
1204    o GM Advective form: Tracers are advected using the residual transport (=
1205      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1206    
1207    checkpoint44g_post
1208    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1209      results) ; ifdef missing in thermodynamics.F
1210    
1211    checkpoint44f_pre,checkpoint44f_post
1212    o added PTRACERS package
1213      This allows an arbitrary number of passive tracers to be integrated
1214      forward simultaneously with the dynamicaly model.
1215      + Implemented so far:
1216        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1217        - I/O and checkpointing
1218        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1219      + Not implemented so far:
1220        - KPP
1221        - OBCS
1222      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1223        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1224        line in data.pkg.
1225      + This package is disabled by default since it increases storage.
1226    
1227    
1228    o testscript: added -cleanup option
1229    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1230                 b) enable to filter 2D fields.
1231    
1232    checkpoint44e_pre,post
1233    o re-wrote convective adjustment to use pre-calculated weights
1234      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1235      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1236      Original calls to convect() still in place.
1237    
1238    chkpt44d_pre,post
1239    o added missing EXCLUDE_MONITOR flags
1240    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1241      (incompatible typ in MIN/MAX expressions caused problems
1242      on IBM SP3)
1243    o in genmake added variable MAKEDEPEND
1244      plus resetting for case SunOS
1245    o added timer_stats.c routine for IBM SP3
1246    o removed variables in dynamics
1247    !!! I forgot to create tag chkpt44d_pre !!!
1248    !!! But chkpt44d_pre = chkpt44c_post    !!!
1249    
1250    o real fresh water flux implemented with non-linear free-surface.
1251    
1252    chkpt44c_pre,post
1253    o few fix (mask in shap_s2, EmPmR in external_field_load,
1254      USE_NATURAL_BCS in solve_for_P);
1255    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1256    
1257    checkpoint44b_pre/_post
1258    o merge of relevant stuff from the ecco-branch:
1259      - genmake: removed $S64 overwrite for case SunOS
1260      - pkg/exf: update and corrections for field swapping and obcs
1261      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1262                  harmonized between ECCO and MITgcm
1263      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1264                      updated checkpointing_lev... lists for obcs
1265      - model/src: minor changes in forward_step, plot_field
1266                   added directive for divided adjoint in the_main_loop
1267      - pkg/mdsio: added mdsio_gl_slice
1268    
1269    o check parameters & config (chkpt44a_pre,post)
1270    o OBC and NonLin_FrSurf.
1271    
1272    checkpoint44
1273    o fix bug in mom_vi_del2uv
1274    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1275    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1276    o update AIM experiments (NCEP input files)
1277    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1278    o added some stuff for AD
1279    
1280    checkpoint43
1281    o added two new advection tests
1282    o added global 4x4 degree ocean test
1283    o added test of H&S94 with free surface on cube
1284    o some final mods for gradient check, adjoint,...
1285    
1286    checkpoint42
1287      Fixed AD-related problems:
1288    o Store directives up-to-date with re-arranged Adams-Bashforth
1289      (mainly thermodynamics.F)
1290    o New store directives for multi-dim. advection schemes
1291      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1292      * new common block and key passkey
1293      (mainly gad_advection.F)
1294    o Modified store directives for split of dynamics/thermodynamics
1295      for the case ALLOW_KPP
1296    o Cleaned argument list for timestep_tracer.F
1297    
1298    checkpoint41
1299    o re-formatted/added comments in prologues of key subroutines
1300      to work with protex
1301    
1302    checkpoint40
1303    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1304    o added FLT (floats) package from Arne along with demo. experiment
1305    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1306      implementation of forward-in-time forcing terms
1307    o more mods for non-linear free-surface including new variable
1308    o modified multi-dim method to work on cube
1309    o bug fix in KPP (from DM)
1310    
1311    checkpoint40pre9
1312    o added DST advection schemes
1313    o fix MPI bug on SGI's
1314    o modifications for non-linear free-surface
1315    o fixed conditionals for fixed flow/passive tracer only mode
1316    o added tension/strain form of stress tensor
1317    o changes to commenting of arguments for TAF/TAMC
1318    o added/updated many matlab scripts
1319    o added multi-dimensional advection method for tracers
1320      
1321    checkpoint40pre8
1322    o new package rw/
1323      Added method for dumping intermediate local arrays:
1324      mdsio_writetile - same as mdsio_writefield except works from inside
1325                        bi,bj loop
1326      mdsio_writelocal - same as mdsio_writetile except works for local
1327                         arrays
1328      write_local_r? - higher-level wrapper for mdsio_writelocal
1329      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1330      Example given at end of mom_vecinv.F that dumps some local arrays.
1331    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1332      control flux-form versus vector invariant code.
1333      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1334      or genmake -DISABLE ...
1335    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1336      (additional storing is now needed for case vecinv;
1337      currently nothing implemented to switch this storing off
1338      in case fluxform is used since no CPP flag available).
1339    
1340    checkpoint40pre7
1341    o bug fix in dynamics.F
1342      calc_viscosity called before k=1,Nr loop.
1343    o added some #ifdef's ALLOW_PASSIVE_TRACER
1344    o cleaned initialisations in ctrl_map_ini
1345      related to TAF
1346    
1347    checkpoint40pre6
1348    o split dynamics into thermodynamics & dynamics
1349    o corresponding split of calc_diffusivity into
1350      calc_diffusivity, calc_viscosity
1351      (kpp_calc_diff, kpp_calc_visc).
1352    o Added diffkr, kapgm to control variables
1353    o bug fix in gmredi_slope_limit for ldd97
1354    
1355    checkpoint40pre5
1356    o proper initialization of Adams-Bashforth time stepping
1357      + uses forward step for very first step of model (iter=0)
1358    o re-generated *all* output since almost all output is modified by this
1359      change (sorry but we've been putting this one off for about 2 years)
1360      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1361        *not* regenerated since they are already out of date and I don't
1362        want to create the impression that they are suddenly working.
1363    o removed KAP stuff for DEC's
1364    o modified/added many .cvsignore files in */code and */input
1365    o added new expt "solid-body.cs-32x32x1"
1366      + this uses an alternative form of ini_curvilinear_grid.F which
1367        is not necessarily any better than the current one...
1368    
1369    checkpoint40pre4
1370    o added re-initialisations of utrans,vtrans,rtrans in
1371      calc_common_factors which are crucial for TAF.
1372    o extended iMin,jMin range for calc_common_factors,
1373      calc_diffusivity
1374    o added option ALLOW_PASSIVE_TRACER
1375    o a few minor updates and fixes
1376    
1377    checkpoint40pre3
1378    o created calc_gtr1.F for gad package
1379    o split the_main_loop and re-introduced forward_step
1380    o some recomputations of nIter0 for TAMC
1381    
1382    checkpoint40pre2
1383    o Updated to latest branch of AJA, JMC
1384    o Added gradient check package
1385    o Added routines for passive tracer handling
1386    o Added carbon sequestration sensitivity experiment
1387    
1388    checkpoint39
1389     o Modifications and fixes to support TAMC
1390       (mainly missing or wrong directives)
1391     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1392       in addummy_in_stepping
1393     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1394     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1395     o Included following packages:
1396       cal: calendar
1397       exf: external forcing
1398       ecco: essential routines to control use of cal, exf
1399             (NB: this is not the full ECCO environment)
1400     o disabled some packages by default in genmake
1401    
1402    checkpoint38
1403     o see notes_c37_adj.txt
1404     o corrected wrong layer index in external_forcing_t
1405     o replaced the_main_loop/forward_step by the_main_loop
1406     o removed forceoutput from write_state
1407       (replaced criteria for initial/final state)
1408     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1409    
1410    checkpoint37
1411     o mdsio.F routine split and packaged in pkg/mdsio
1412       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1413        used unless genmake -disable=mdsio)
1414     o allow a more precise surface-geopotential gradient for the atmosphere
1415       taking into account the change in space of Alpha (=1/rho) at the surface.
1416     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1417       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1418     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1419       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1420       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1421     o Time-Average diagnostics defined as a pseudo package "timeave".
1422     o pickup files : old pickup (before c35) did not work with new code (c35
1423       and after) unless activating 2 commented lines in initialise-varia.
1424     o Non-Hydrostatic pickup file Pb fixed.
1425     o bug with Rigid-lid version (since c35) fixed.  
1426    
1427    checkpoint36
1428     o implement Crank-Nickelson barotropic time-stepping
1429     o recover Time-Average diagnostics
1430     o fix Pb in checkpoint (PR#19)
1431     o AIM become a standard package ; clean unused CPP_kees
1432    
1433    checkpoint35
1434     o subtantial rewrite of dynamics.f
1435     o allows staggered time-stepping
1436     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1437     o added bottom drag (linear + quadratic)
1438    
1439    checkpoint34
1440     o Modified exchange routines for correct reverse simulation.
1441     o Added verification output to comply with bug fix in impldiff.F
1442       as of c33 (exp2, natl_box).
1443     o Corrected store directives in dynamics.F
1444     o Corrected array boundaries in impldiff.F
1445     o Corrected array dimensions in gmredi.
1446       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1447     o Added routine GLOBAL_SUM_INT to global_sum.F
1448     o Added mdsio_gl.F for ECCO purposes.
1449    
1450    checkpoint33
1451     o Fixed bug in lower BC in impldiff.F
1452     o Fixed confusion about units of forcing arrays in FFIELDS.h
1453       namely Fu,Fv,Qnet,Qsw,EmPmR:
1454       - Removed verification/natl_box/code/external_fields_scale.F
1455         (did not differ from that in model/src)
1456       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1457         (see FFIELDS.h for description)
1458       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1459         kpp_calc.F and kpp_transport_t.F
1460       - Removed model/src/external_fields_scale.F and calls to it
1461       - verification/natl_box uses flux data with "atmospheric" sign so
1462         a special version of external_fields_load.F is used to
1463         change the data as it's read in. This way, the arrays
1464         have the right units and signs at all times tha a user could
1465         possibly use them.
1466     o Corrected genmake to delete a temporary file during configuration
1467    
1468    checkpoint32
1469     o Scaling of forcing fields moved from external_forcing.F to
1470       external_fields_scale.F, called directly after loading fields.
1471     o Surface relaxation terms added to surface tendency fields in
1472       extra subroutine.
1473     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1474       fields.
1475     o Changes in GMRedi to comply with packaging structure.
1476     o Modifications and bug fixes in KPP package.
1477     o Verification experiment for KPP added (verification/nat_box/)
1478    
1479    checkpoint31
1480     o Packages interface brought in line with defined standard
1481       -> new routines packages_...F
1482       -> changes in initialise_fixed.F, initialise_varia.F
1483       -> enables initialisation interface for ECCO package
1484     o Rescaling of external forcing fields immediately after read
1485       (removed from external_forcing.F)
1486       -> new: surface_fields_scale.F
1487       -> affects ini_foorcing.F, external_fields_load.F
1488     o Computation of surface tendencies before tendency updates.
1489       -> new: external_forcing_surf.F
1490     o Change of variable names useGMRedi, useKPP, useECCO
1491     o Further changes in dynamics.F, impldiff.F for TAMC
1492     o Tested for experiments 0, 2, 4.
1493       - not yet tested for GMRedi.
1494       - not yet tested for KPP.
1495    
1496    checkpoint30
1497     o Updates for OBCs
1498     o New experiment for test OBCs (internal_wave)
1499     o New output.txt in verification/exp4/results/
1500     o Updates for KPP: calculation of viscosity corrected, new variables
1501       kpp_dumpFreq and kpp_taveFreq
1502     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1503       and entry for T90 in genmake
1504    
1505    checkpoint29
1506     o packaged KPP and GM/Redi
1507    
1508    checkpoint28
1509     o Corrected initialization of hFacMin for difference vertical coordinates
1510     o Modified calculation of partial cell thickness to more robust algorithm
1511     o config_summary.F: replaced write_1D_... by write_0D_...
1512       read_write.F: added subroutines write_0D_...
1513     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1514       included some initialisations required for TAMC.
1515     o routine calc_isoslopes: modified sqrt computation to make it
1516       differentiable for zero argument.
1517     o routines dynamics, impldiff:
1518       included store directives and tape key computations required for TAMC.
1519     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1520    
1521    checkpoint27
1522     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1523       formulation works properly with variable resolution.
1524     o restructured the calling tree between the_model_main() and dynamics()
1525     o split initialise() into initialise_fixed() and initialise_varia()
1526     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1527       in new routine ini_psurf()
1528    
1529    checkpoint26
1530     o moved some #ifdef in optional routines to encompass everything
1531       except the argument declarations. This was using up some memory.
1532     o fixed macros like _ADT to work with both versions of Linux cpp
1533     o cleaned up some unused and uninitialized variables
1534       (helps when debugging with strict compile options)
1535     o split up CPP_EEOPTIONS.h into options and macros
1536       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1537     o patch for 2 processor JAM mode
1538    
1539    checkpoint25
1540     o updates for OBCs and NH
1541     o dramatically reduced memory usage
1542     o added "JAM" routines for use on Artic network
1543     o parameterization of convection by implicit vertical diffusion
1544     o added a diagnostic of convective index
1545     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1546       (this is was partly for OBCs and NH but also in anticipation of
1547        an explicit free-surface option)
1548     o initial state input files for U and V
1549    
1550    checkpoint24
1551     o Removed some spurious "REAL"s
1552     o Updated KPP to latest version from JPL
1553     o Added a COS(latitude) in horizontal viscosity
1554    
1555    checkpoint23
1556     o Added del^4 diffusion for salt and temperature
1557     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1558    
1559    checkpoint22
1560     o Made many small changes: implicit none, format(i5), etc...
1561     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1562    
1563    checkpoint21
1564     o Introduced new I/O package that supports direct-access records (mdsio.F)
1565     o Split-up mid-level I/O routines
1566     o Updated input data for experiments 0,1,2,4 and 5
1567     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1568    
1569    checkpoint20
1570     o Tidied up open-boundaries some more
1571     o Added non-hydrostatic code
1572     o Fixed some input data
1573     o Modified MPI start-up to work in "coupled" context.
1574    
1575    checkpoint19
1576     o Tidied up directory structure for verification experiments.
1577     o Added new code for open boundaries.
1578     o Corrected advective terms near boundaries.
1579     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1580     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1581     o Split default parameters out of ini_parms.F into set_defaults.F.
1582    
1583    checkpoint18
1584     o Further changes for optional code generation with
1585       CPP - ugh!
1586    
1587    checkpoint17
1588     o Beginning to incorporating modularity
1589       for supporting atmos. and ocean configs.
1590     o Small changes for TAMC complinace
1591     o New ultra simple test case. Barotropic box
1592       configuration "exp0".
1593    
1594    checkpoint16
1595     o Minor changes to exchange routines to support
1596       accumulation in reverse mode. Adjoint of an
1597       assignment is an addition.
1598     o Changes to support compilation by TAMC (LR(1)
1599       syntax) and by g77 under Linux ( 72 character
1600       limit ).
1601    
1602    checkpoint15
1603     Rewrote exchange routines to allow
1604     o General tile <-> tile connectivity.
1605     o TAMC reverse mode flag ( is this really needed? )
1606     o Variable width overlap and exchange region widths.
1607     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1608       shmput/shmget, VIA, SYSV shmem and every other cool
1609       communication method.
1610    
1611    checkpoint14
1612     Consistent isomorphism chages made. These allow dynamical core
1613     to support both pressure and meters as a vertical coordinate.
1614    
1615    checkpoint13
1616     Release which corrects global_max problem and a couple
1617     of KGM time-averaging diagnostic errors. Also contains
1618     a double-gyre experiment setup as well as the baseline
1619     4 degree global template. The double gyre template is
1620     organised to allow it to be applied automatically to
1621     the baseline configuration.
1622    
1623    branch-point-rdot
1624     A few tidy-ups have been made bt the real point of this
1625     check-point (excuse the pun) is to allow a branch to be
1626     made for the purposes of adding the rDot alterations.
1627     I don't want to commit the rDot to the main-trunk until
1628     we've actually tested it...
1629    
1630    checkpoint12
1631     Tidy up and added generic genmake script (formerly
1632     configure script).
1633     Released to testers.
1634    
1635    checkpoint11
1636     Re-arranged initialise() and introduced ini_vertical_grid()
1637     and ini_masks_etc().
1638    
1639    checkpoint10
1640     Introduced the configure script.
1641     Separated out the diags package.
1642     Added template for writing time-averages of tile/intermediate quantities.
1643     Updated SIZE.h in exp2 and made the data big-endian.
1644    
1645    checkpoint9
1646     MPI fix. Filename changes (meta/data). salbin*y stuff.
1647     General tidy-up.
1648     SST.bin SSS.bin added to verification/exp2
1649    
1650    checkpoint8
1651     Inludes time-dependant forcing and time-averaging.
1652     Works at 4x4 and 2.8125x2.8125 global
1653    
1654    checkpoint7-4degree-ref
1655     Branch from checkpoint7. Released for application to
1656     global modeling and general modeling - process studies, regional
1657     model etc..
1658     Configured for verification/exp2 - 4 degree global, two process.
1659    
1660    checkpoint7
1661     Created by cnh
1662     Simple 4 degree global simulation
1663     configuration.
1664     Includes climatological wind,
1665     hydrography, bathymetry etc
1666     Does not include Heat Flux and E-P
1667    
1668    checkpoint6
1669     Created by cnh
1670     merged checkpoint5 with CD and
1671     spherical polar code.
1672     Still some problems with GM Redi
1673     abd full topography.
1674    
1675    checkpoint5
1676     Created by AJA
1677     contains updates to GM Redi
1678     and reordered timestepping loop
1679     for Implicit Diffusion.
1680    
1681    checkpoint4
1682     Created by cnh
1683     Contains memory saving macros ( _rdxc etc..) for when
1684     grid variations are limited.
1685     Contains polynomial coeffs for EOS and knudsen program
1686     for generation.
1687    
1688  checkpoint3  checkpoint3
1689   Created by cnh   Created by cnh
1690   Added extra flags for runtime options   Added extra flags for runtime options
# Line 20  checkpoint1 Line 1703  checkpoint1
1703   Restructured kloop in dynamics.F   Restructured kloop in dynamics.F
1704   Added non-linear EOS   Added non-linear EOS
1705    
1706  baseline - Original checked in code  baseline
1707     Original checked in code
1708    

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