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revision 1.16 by cnh, Tue Nov 3 15:31:08 1998 UTC revision 1.254 by afe, Tue Feb 3 22:51:50 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 tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
7      error messages
8    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
9    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
10      debug output
11    o modfied mdsio_writefield.F to handle non-global files under exch2
12    o update AIM Cubed-Sphere exp (aim.5l_cs):
13      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
14    o update AIM Equatorial Channel exp:
15      use standard aim_v23 pkg and change the SST fields to be more realistic.
16    o globalFile now works with exch2
17    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
18      mon_vort3.F to make exch2 friendly with >1 tile per cube face
19    o limit timeave output for hi-res integrations
20    
21    checkpoint52i_post
22    o removed CPP_EEOPTIONS.h from verification/*/code
23    o updated the tiling for global_ocean_pressure
24    checkpoint52i_pre
25    
26    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
27      the old pkg/aim).
28    
29    checkpoint52h_pre
30    o shortened offending lines in exch2_send_rx?.template
31    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
32    o genmake2: add build & execute test for NetCDF code
33    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
34      old grid files, moved CPP_EEMACROS.h to pkg/exch2
35    o added useSingleCPUIO flag to monitor.F and mon_out.F
36    o added temporary hack for sea-ice dynamics on the cube:
37      metric terms are ignored and it is assumed that
38      there is no sea-ice on cube faces 1, 2, 4, and 5.
39    
40    checkpoint52f_post
41    o added exch2 cube routines to pkg/exch2
42    o modified hs94.cs-32x32x5 to use it
43    o added new grid files to hs94.cs-32x32x5
44    checkpoint52f_pre
45    
46    checkpoint52e_post
47    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
48      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
49    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
50      to work with implicit vertical advection and AB ;
51    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
52    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
53     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
54    checkpoint52e_pre
55    
56    o fix bug in impldiff when Nr=1 or Nr=2.
57    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
58    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
59    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
60      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
61    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
62    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
63    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
64    
65    checkpoint52d_post
66    o re-tiled many expts to allow comparison in multi-processor mode
67      - updated output accordingly
68      - changed hs94.128x64x5 to use intial T from file rather than use the
69        random number generator
70    o add infrastructure in model routines for fizhi and gridalt packages
71    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
72    o changes to permit hi-res, cubed-sphere, configuration
73      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
74      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
75      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
76        of surface winds for the cube
77      (A verification experiment, based on global_ocean.cs32x15, but with
78       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
79       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
80       complete with example surface forcing files and matlab scripts to look
81       at the output and compare it with that of global_ocean.cs32x15.)
82    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
83       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
84       to conform to the common rule.
85    o check-in the first version of the coupler + interfaces for multi-components
86       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
87       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
88       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
89       - ocean and atmos. share the same horizontal grid (no interpolation).
90       - exchanges between component and coupler is done in forward_step
91    o new verification experiment, cpl_aim+ocn:
92       coupled ocean - AIM atmosphere on cs32 grid.
93    
94    checkpoint52d_pre
95    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
96    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
97    
98    checkpoint52c_post
99    o Fixing OPTIONS files for use of exf:
100      - ALLOW_ECCO not needed
101      - ECCO_CPPOPTIONS.h should not be included from
102        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
103        as has been the case in the past
104      - All cal/exf related options are currently set in
105        single header file. Should remain so until we
106        agree on a consistent new policy.
107    o Removed all CPP options for cal package.
108      cal has no more CPP options.
109    o modified STOREs in GAD_ADVECTION
110    o corrected key comp. for passkey
111    
112    checkpoint52b_post
113    o new version: "thsice" of thermodynamic sea-ice pkg:
114     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
115     - modify fluxes but do not change theta directly;
116     - light cleaning of bulk_force pkg (still needed with thsice).
117     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
118       + output_thsice.txt to test thsice & bulk_force pkgs.
119    o put back grid & coriolis monitor output.
120    checkpoint52b_pre
121    
122    o call "do_the_model_io" at the beginning (=> dump initial state)
123    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
124    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
125      (need info on NUMBER_OF_PTRACERS)
126    o missing PTRACERS headers in some routines
127    o default tamc.h in pkg/autodiff supposed to crash
128      to ensure proper customization
129    
130    checkpoint52a_post
131    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
132      - moved surfaceTendencyTice from pkg/seaice to main code
133      - subroutine FREEZE_SURFACE now limits only surface temperature
134        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
135        => new output.txt for global_ocean.cs32x15 & global_with_exf
136      - keep the old version of FREEZE for backward compatibility;
137        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
138      - corresponding modifs for TAF directives
139    o added surface flux output variables to TIMEAVE_STATVARS
140    o time-averaged output for pkg/ptracers
141    o fix problem with ECCO-related divided adjoint
142      snapshot file was missing some ad-variables,
143      but no warning issued by TAF
144    
145    checkpoint52a_pre
146    o some bug fixes for #undef REAL4_IS_SLOW
147    
148    checkpoint52 = ecco_c52_e35
149    o after testing adjoints of checkpoint51u_post
150    
151    checkpoint51u_post
152    o this is the post-merge tag of the ecco-branch
153      (needs another clean checkout and re-testing)
154    o various natl_box_adjoint configs and results
155      but no input fields
156    o obcs adjoint not yet merged!
157    o adding ECCO global 1x1 and 2x2 degree configs
158    o updated/extended some store directives for seaice
159    o pkg/ecco now containes ecco-specific part of cost function
160    o top level routines the_main_loop, forward_step
161      supersede those in model/src/
162      previous input data.cost now in data.ecco
163      (new namelist ecco_cost_nml)
164    o in ctrl/ cleaned some cross-dependencies and updated CPP options
165    
166    checkpoint51t_post
167    o this is the pre-merge tag of the ecco-branch
168    
169    checkpoint51s_post
170    o cleanup: removed various obsolete #define-s
171    o pkg/grdchk
172      - renamed 'ph-grd 3' to 'grad-res'
173      - merged from ecco-branch
174        (remaining bug fixes for obcs gradient checks)
175      - additional high-precision output for testreport
176        (grep for 'precision_grdchk_result')
177    
178    checkpoint51r_post
179    o cleaned up or removed CPP_OPTIONS.h files
180    o updated results for some of the tests to reflect the new
181      optfiles (-ieee: -O0 instead of -O3)
182    
183    checkpoint51q_post
184    o cd_code:
185      - moved cd_scheme.F -> cd_code_scheme.F
186      - separate read_checkpoint from cd_code_ini_vars.F
187      - separated cd_code part from write_checkpoint
188      - updated AD_SOURCE, generated .flow
189      - added CD_CODE_VARS.h to the_main_loop
190      - Moving cd_code specific store dir.s to pkg/cd_code
191    o ctrl package totally restructured
192      - pack/unpack now optional and decoupled from
193        xx_/adxx_ I/O
194      - ctrl_pack/unpack cleaned
195        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
196      - confined inclusion of AD_CONFIG.h to where necessary.
197    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
198    
199    checkpoint51p_post
200    o create initial cd_code package
201      - WARNING: the initialization of fields within packages
202        is broken because INI_FIELDS (where READ_CHECKPOINT is
203        called) is called *before* PACKAGES_INIT_VARIABLES.
204        This seems to be backwards since
205        1) its important to initially zero the entire field including
206           the "halo" region
207        2) zeroing needs to be done *before* reading pickup info
208           and the pickup call might or might not happen in any
209           particular run
210      - this needs an overhaul for R2
211    o cleanup verification/*/code/GMREDI_OPTIONS.h
212    o cleanup testreport
213    
214    checkpoint51o_post
215    o bringing AD-related verif's up to date with genmake2
216      - carbon/
217      - global_ocean.90x40x15/
218      - hs.94.1x64x5/
219      - (front_relax/ )
220    o (more) consistent directory structure for AD-related verif.'s
221    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
222    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
223    o bug fix in find_alpha.F for MDJWF:
224      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
225        change rho -> rho-rhoConst
226      - replace call find_rho to find_rhonum
227    o initialisation of rFlx extended to full array (required by TAF)
228      and shifted to thermodynamics
229    o removed PTRACERS.h in ptracers routine
230    o added surfacetendencyPtr to S/R parameter list pracers_forcing
231    o Correcting initialisations for fVerU, fVerV.
232    o helping TAF to recognize dependency on kUp for
233      fVerU, fVerV
234    o Replacing delZ by delR in pkg/ctrl/
235    checkpoint51o_pre
236    
237    o undid all of cp51 pending some cleanups and discussion
238    o added the [#include "AD_CONFIG.h"] statement to all files that need
239       it for adjoint/tl #defines
240     o re-worked the build logic in genmake2 to support AD_CONFIG.h
241     o removed tools/genmake since it no longer works
242    
243    checkpoint51n_post
244    o modifications to make FREEZE flux visible to pkg/kpp
245      - moved surfaceTendencyTice from pkg/seaice to main code
246      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
247      - subroutine FREEZE now limits only surface temperature
248        (this means new output.txt for global_ocean.90x40x15,
249         global_ocean.cs32x15, and global_with_exf)
250    o added surface flux output variables to TIMEAVE_STATVARS
251    
252    checkpoint51n_pre
253    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
254    o added [#include "AD_CONFIG.h"] to all files that use the following
255      defines:
256      - ALLOW_ADJOINT_RUN
257      - ALLOW_TANGENTLINEAR_RUN
258      - ALLOW_ECCO_OPTIMIZATION
259    
260    checkpoint51m_post
261    o incorporating changes to get TAMC/TAF working in genmake2
262      - added new TAMC/TAF targets to the Makefile
263      - various cleanups related to package handling
264      - these changes should have no impact on the forward model
265    
266    checkpoint51l_post
267    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
268     - faster algorithm for cal_addtime.F
269     - higher precision arithmetic, where needed
270     - pkg/exf *startdate variables changed from calendar date to
271       model integration time
272    
273    checkpoint51l_pre
274    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
275    o enable to apply restoring on S & T only in a latitude band.
276    o update output (external_forcing_surf modif. change truncation errors)
277       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
278    
279    checkpoint51k_post
280    o change default to: useNHMTerms=.FALSE.
281     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
282       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
283     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
284        exp1, ideal_2D_oce
285     - change data file of oceanic exp (leave the results unchanged for now)
286       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
287    o set gravitySign automatically according to the vertical coordinate used
288      (and change sign: back to "logical" value: +1 when R increases downward)
289    o added an include barrier to the default CPP_OPTIONS.h and
290      removed the #include "PACKAGES_CONFIG.h" from it
291    o fix a bug in mom_fluxform (from chk51j_post)
292    
293    checkpoint51j_post
294    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
295    o adjusted some flow directives (dynamics, thermodynamics)
296    o added cubed-sphere case to test cost function
297    o heckpoint_lev?_directives.h now include
298      pkg-specific directives, whenever those are enabled.
299    o Moving pkg-specific flow directives to corresponding pkg
300      Moving pkg-specific differentiation list to corresponding pkg
301      Moving pkg-specific checkpoint-lev storing to corresponding pkg
302      ---> conventions are
303           - pkg_ad.flow
304           - pkg_ad_diff.list
305           - pkg_ad_check_lev?_dir.h
306    
307    checkpoint51i_post
308    o merge of the branch-genmake2
309      - knowingly breaks the older genmake
310      - automatic generation of all ALLOW_${PKG_NAME} defines
311      - new testreport supersedes older testscript
312    o large number of package inclusion and header cleanups
313    checkpoint51i_pre
314    
315    o new output for adjoin of global ocean vector invariant
316    o fix for checkpoint of thermodynamic seaice and bulk_force
317    o Steph gchem various cleanups
318    
319    checkpoint 51h_pre
320    o fixed some single quotes
321    o modify gchem pkg to be more versatile
322    o modifications to clean up dic pkg
323    o add pkg/cfc
324    
325    checkpoint51g_post
326    o provide links for ARPACK and ADM*TLM
327    o start removing verification/vero/
328    o update AD-related stuff
329      (in particular some IF-statements in model/src/ routines)
330    o adding to verification/global_ocean.90x40x15/ adjoint of
331      vector invariant setup
332    
333    checkpoint51f_post
334    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
335    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
336      of tracer Green's fucntions for ocean inversion project.
337    
338    checkpoint51f_pre
339    o Added on-the-fly spatial interpolation capability
340        "USE_EXF_INTERPOLATION" to pkg/exf.
341      - This is a temporary Cartesian-grid hack until
342        the super-duper ESMF coupler becomes available.
343      - See verification/global_with_exf/README for usage example.
344      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
345        flags and modified pkg/seaice accordingly.
346    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
347        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
348        non-local transport term.
349    
350    checkpoint51e_post
351    o pkg/mom_vecinv:
352      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
353      - add time-ave diagnostic of vorticity advection.
354    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
355    o atmospheric geopotential: - include water vapor effect;
356                                - use p^kappa in p* scaling.
357    o land pkg: read initial state from files.
358    o AIM : add stratospheric drag in the upper level
359    
360    checkpoint51d_post
361    o change function ILNBLNK (=> last non-blank char.) to return zero
362      (instead of the string length) when the string. char is empty
363    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
364    o modif's to restore TAMC compatibility
365      - avoid "_d" constructs in PARAMETER declarations
366      - avoid interrupting lines by comment lines
367    o Use cluster local disks for purely local I/O
368      vs. globally visible disks needed for ctrl stuff
369      (merged from ecco-branch)
370      - new active_file_loc... and mdsio_..._loc routines
371      - affected packages: autodiff, ctrl, grdchk, mdsio
372    
373    checkpoint51c_post
374    o introducing integer flag debugLevel
375      - debLevZero: suppress all output
376      - debLevA: standard
377      - debLevB: equivalent to current debugMode=.TRUE.
378    o introducing pathname variable mdsioLocalDir for mdsio
379      that can be specified at runtime
380      (relevant for cluster I/O to local disk)
381    `
382    >>>checkpoint51b_post
383    adjoint of ptracers
384    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
385    o extended state in checkpoint_lev?, etc.
386    o alternative ctrl/cost with tr1 or ptracer
387    o new comlev1_bibj_ptracers
388    o new ptracers.flow
389    o made ptracers_forcing same as external_forcing_s
390    o added verification for adjoint with ptracers
391      - adm. grdchk fail so far
392      - tlm. grdchk OK
393      - checked tapelev/comlev recomputations: OK
394    <<<checkpoint51b_pre
395    
396    checkpoint51a_post
397    o added code for biogeochemistry package
398      - new pkgs: dic, gchem
399      - new subroutine in ptracers
400    o modify code for biogeo packages
401      - in model/src and pkg/ptracers
402    
403    checkpoint51
404    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
405      - autodiff, ctrl, exf, grdchk, seaice
406      kept separate packages
407      - cost, ecco, obcs
408    o updating verification/internal_wave, verification/lab_sea
409      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
410    
411    checkpoint50i_post
412    o Preparing next differentiable checkpoint and sync
413      of MAIN vs. ecco-branch
414      - 1st step: this one is differentiable
415      - 2nd step: next(! not this) checkpoint will have updated packages
416                  from ecco-branch)
417    
418    checkpoint50h_post
419    o new package "land": provide surface BC for AIM.
420    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
421    o AIM: use true log-P extrapolation for near surface temp (= as in
422        F.Molteni paper) ; update aim.5l_cs output.
423    o New variable in PARM03 for more flexible pickups
424    o somewhat cleaned package initialisation sequence for
425      ctrl/ cost/ ecco/ in packages_... routines
426    
427    checkpoint50g_post
428    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
429      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
430      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
431        made the default because of faster convergence than ADI
432    
433    checkpoint50f_post
434    o exf totally restructured
435      - replaced all exf_set_ routines by one generic exf_set_gen.F
436        and made sure it's still differentiable
437      - split exf_getffields.F into new exf_bulkformulae.F
438      - exf_inscal_/exf_outscal_ suffixes consistent with field names
439      - updated adjoint/makefile and relevant verif. accordingly
440    
441    checkpoint50f_pre
442     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
443          + change Evap over land. (update aim.5l_cs output)
444     o added missing .cvsignores and made uniform across expts
445     o changed configuration of tidal_basin_2d expt
446     o added pkg/debug functions for tracing code in fatal crashes
447     o tidied pkg/monitor to use MONITOR_OPTIONS.h
448     o new fn in pkg/monitor to stop model if solution grows too big
449     o removed lots of single quotes from comments
450    
451    checkpoint50e_post
452    o make KPP work with PTRACERS
453     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
454       nearly a copy of kpp_transport_s
455     - there is no analogue to SurfaceTendencyS, so I have to use
456       gPtr(of the surface layer) instead
457    o add a new platform SunFire+mpi (SunFire 15000) to genmake
458    checkpoint50e_pre
459    
460    checkpoint50d_post
461    o change kpp output from multiple-record state files to single-record state
462      files analogous to write_state.F
463    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
464      analogous to the cg2d-related output.
465    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
466      so that writing to internal file fn (with length 512) fails.
467    checkpoint50d_pre
468    
469    checkpoint50c_post
470    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
471    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
472    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
473    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
474    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
475    
476    checkpoint50c_pre
477    Merging from release1_p13:
478    o bug fix for pkg/seaice dynamic solver
479    o Added SEAICE_initialHEFF to pkg/seaice
480    
481    checkpoint50b_post
482    o store u*,v* in gU,V instead of in guNm1,gvNm1
483    o in order to put the momForcing out of the Adams-Bashforth:
484      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
485      to timestep.F
486    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
487    o re-generate output for highly sensitive test-exp:
488       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
489    
490    checkpoint50b_pre
491    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
492    o corrected CPP option mismatch in exf_Bulk... functions for case
493      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
494    
495    checkpoint50a_post
496    o Bug fix for merging between c50 and KPP.
497      ikey was passed from thermodynamics to kpp_calc via
498      common block rather than being recomputed in kpp_calc,
499      in contradiction with new key itdkey.
500      New key ikppkey created, and tamc.h headers updated.
501    
502    checkpoint50
503    - 2nd step of merge with ecco-branch:
504      merge changes in ecco-branch back into main trunk
505    - bug fix in find_alpha
506    - more storing in gmredi_calc_tensor.F, kpp_routines.F
507    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
508    - merged some sliced AD support routines
509    
510    checkpoint49
511    merged from ecco-branch:
512    o exf:
513      - Enable initialisation of forcing fields to constant
514        (runtime) values.
515      - in exf_getffields.F
516        Reduce i-/j-loop to interior domain, discarding overlaps.
517        That also fixes wrong TAF-key computations for key_1, key_2
518        with bulf formulae.
519      - exf_init.F modify #ifdef for exf_init_evap
520      - exf_getffieldrec.F, ctrl_getrec.F
521        The following INT-usages are not safe:
522          fldsecs  = int(fldsecs/fldperiod)*fldperiod
523          fldcount = int(fldsecs/fldperiod) + 1
524        and were modified.
525    o autodiff: checkpoint_lev...
526      - updated storing for bulk formulae (some arrays were missing)
527      - added state for seaice package
528      - synchronized with main branch
529    o DIVA:
530      Modif.s in
531      - the_main_loop.F
532      - the_model_main.F
533      and added cost_final_restore.F cost_final_store.F
534      o With these changes, it is possible to fully separate
535        the first forward run to compute the cost function (mdthe_main_loop)
536        and adjoint runs over individual DIVA intervals (adthe_main_loop)
537        into separate model executions.
538        This enables better tuning of DIVA to given queue sizes.
539      o Loss of cost function value in consecutive DIVA runs is
540        fixed by storing to 'costfinal' file.
541      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
542        beginning/end of adjoint integration is accounted for.
543      The current changes apply to TAF-1.4.26.
544      TAF has one remaining bug, requiring one manual change
545      (see MITgcm manual).
546    o cal: synchronized between MAIN and ecco-branch
547    
548    checkpoint48i_post
549    o Changes to restore differentiability of code w.r.t. previous tag
550      (mostly adding new routines to make list and replacing
551      pressure by totPhiHyd).
552    o Updated and merged grdchk package
553      - has both ADM and TLM checks
554      - works for single- and multi-proc.
555      - output cleaned
556      - worked successfully for parallel DIVA
557    o genmake:
558      - Adding -platform=SP4
559      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
560    o Modif. for DIVA:
561      ctrl_unpack should not be called in intermediate DIVA interval.
562      (similar thing would apply for active files such as
563      tbar, sbar, psbar, which should not be reinitialised;
564      only relevant for ecco-branch)
565    
566    checkpoint48h_post
567    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
568    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
569    o Added SEAICE_initialHEFF to pkg/seaice
570    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
571    
572    checkpoint48g_post
573    --- EOS:
574    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
575      store total Potential in totPhyHyd for diagnostics & EOS.
576    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
577    --- Pressure/geopotential gradient:
578    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
579    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
580      ( changes results of global_ocean_pressure )
581    o NLFS + z-coord.: add eta*Rho' contribution.
582    o accurate phiHyd when using interface-W at the middle between 2 centers
583     ( changes results of ideal_2D_oce )
584    o includes r* 2nd term in potential gradient.
585    
586    checkpoint48f_post
587    Merging from release1_p12:
588    o Modifications for using pkg/exf with pkg/seaice
589      - improved description of the various forcing configurations
590      - added basic radiation bulk formulae to pkg/exf
591      - units/sign fix for evap computation in exf_getffields.F
592      - updated verification/global_with_exf/results/output.txt
593    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
594      (SBO) core products, including oceanic mass, center-of-mass,
595      angular, and bottom pressure (see pkg/sbo/README.sbo).
596    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
597      to avoid negative values in shallow regions.
598      - updated verification/natl_box/results/output.txt
599      - updated verification/lab_sea/results/output.txt
600    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
601    o Added useSingleCpuIO option (see PARAMS.h).
602    o Updated useSingleCpuIO option in mdsio_writefield.F to
603      work with multi-field files, e.g., for single-file pickup.
604    o pkg/seaice:
605      - bug fix in growth.F: QNET for no shortwave case
606      - added HeffFile for specifying initial sea-ice thickness
607      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
608    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
609      kpp_transport_t.F, forward_step.F, and the_main_loop.F
610    o pkg/seaice:
611      - adjoint-friendly modifications
612      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
613    
614    checkpoint48e_post
615    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
616    o dynamics: change definition of computational domain & adapt mom_fluxform
617      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
618    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
619        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
620        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
621        global_ocean.90x40x15 global_with_exf global_ocean_pressure
622        inverted_barometer solid-body.cs-32x32x1
623      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
624    
625    checkpoint48d_post
626    o in preparation for r*:
627     a) use pre-computed gradient of hydrostatic potential:
628        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
629     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
630        => affects results of glob_oce_pressure (different truncation error)  
631      update output.txt of ideal_2D_oce & global_ocean_pressure
632    
633    checkpoint48d_pre
634    o in preparation for r*:
635      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
636      pass the 2 comp. of the grad. as arguments to momentum S/R.
637      but for the moment, only used if it does not change the results.
638    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
639    
640    checkpoint48c_post
641    Modifications in treatment of initial flux forcing controls
642    to avoid extra storing of flux fields.
643    
644    checkpoint48c_pre
645    o Added tidal_basin_2d experiment (currently 1D!)
646    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
647    
648    checkpoint48b_post
649    o r* coordinate added in #ifdef NONLIN_FRSURF block.
650     (modification to pressure gradient not yet implemented)
651    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
652      (for U & V) that are used for vertical advection of momentum.
653    
654    checkpoint48a_post
655    o In preparation for r*, use temp. array to compute vertical transport
656       in flux-form momentum pkg. => change results of few test-exp.
657      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
658                        lab_sea, natl_box & plume_on_slope
659    
660    checkpoint48
661    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
662    
663    checkpoint47j_post
664    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
665    o moved adexch from forward_step to addummy_in_stepping
666    o added exch in ctrl_map_...
667    o aveFreq.=0. at end of cost_final to avoid overwrite in
668      reverse checkpointing loop
669    o Yet more changes in gmredi:
670      * adgmredi_calc_tensor
671        avoiding all recomputation of gmredi_slope_limit
672      * adgmredi_x/y/rtransport
673        added flag for excessive storing to avoid recomp. of
674        u/v/rtans, dTdx/y/z
675        -> this is not really necessary and very memory-consuming
676      * adgmredi_slope_psi:
677        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
678      * gmredi_slope_limit
679        re-activated full calculation of taperfct for case 'ac02'
680    o updating verification/ adjoints of carbon, global_ocean.90x40x15
681    
682    checkpoint47i_post
683    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
684    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
685      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
686    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
687    o gmredi: fix few bugs.
688    
689    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
690    This will be a good checkpoint to plug into the ecco-branch.
691    o few modif.'s to get latest version adjointed
692      (mainly kick out code in ini_linear_phisurf)
693    o modif's to run adjoint with exactConserv
694    o case GM_BOLUS_ADVEC should be cleaned
695      S/R gmredi_slope_psi should be cleaned
696    o verification/carbon now has exactConserv=.TRUE.
697    
698    checkpoint47g_post
699    o time-average AIM output: becomes independent from statvars time-average
700      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
701    o After TAF bug fix:
702      Tested adjoint of gmredi package.
703      Tests were done with checkpoint47 rather than with latest
704      checkpoint47f_post since the latter is broken for the adjoint
705      verification/carbon/ contains both ADM and TLM gradient checks.
706    Here they are, before they get changed/lost/stolen.
707    Mostly modif.'s to fix numerical sensitivities.
708    Gradient checks OK for
709    - GM_taper_scheme:
710      * clipping
711      * ac02
712      * linear
713      * glw91
714      * dm95
715      * ldd97
716    - GMREDI_OPTIONS:
717      * GM_VISBECK_VARIABLE_K
718      * GM_NON_UNITY_DIAGONAL
719      * GM_EXTRA_DIAGONAL
720      * GM_BOLUS_ADVEC
721    in conjunction with data.gmredi parameters to be checked in
722    in a few minutes under verification/carbon/code/
723    
724    checkpoint47f_post
725    Merging from release1_p10:
726    o modifications for using pkg/exf with pkg/seaice
727      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
728        and SEAICE_EXTERNAL_FLUXES
729      - pkg/exf CPP options EXF_READ_EVAP and
730        EXF_NO_BULK_COMPUTATIONS
731      - usage examples are Experiments 8 and 9 in
732        verification/lab_sea/README
733      - verification/lab_sea default experiment now uses
734        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
735    
736    checkpoint47e_post
737    o created a tag prior to creating a branch
738    
739    checkpoint47d_post
740    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
741      at the bottom boundary had an erroneous half slip boundary condition
742    o added bottom drag and no slip boundary condition capabilities to
743      oceanic pressure coordinates code
744    o added new verification experiment global_ocean_pressure, this experiment is
745      also described in the tutorial section of the manual
746    checkpoint47d_pre
747    
748    checkpoint47c_post
749    o Added a verification experiment for a global cubed-sphere ocean run
750      -  verification/global_ocean.cubed32x32x30
751      -  uses pkg/therm_seaice and pkg/bulk_forcing
752    
753    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
754    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
755      when using P-coordinate; only implemented for atmospheric config.
756    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
757      NOTES: requires option NONLIN_FRSURF to be "#define".
758    o update advect_xz/results/output.txt (left from checkpoint44g_post)
759    
760    checkpoint47b_post
761    Merging from release1_p9:
762    o pkg/seaice
763      - removed GOTO's and added taf directives
764      - double precision constants to reduce the g77 (Linux)
765        to F77 (SGI) differences reported in release1_p8
766    o tools/genmake
767      - added SGI options
768    o verification/testscript
769      - updated to that of checkpoint47a_post
770    o verification/global_ocean.90x40x15/input/eedata
771      - modified for SGI f77 compatibility
772    o verification/lab_sea
773      - added description of sea-ice model
774      - added missing matlab routines
775      - added test of thermodynamics parallelization
776    
777    checkpoint47a_post
778    o new pkg: aim_v23
779     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
780       for now, keep the same surface forcing as before.
781     - Part-Cell implemented into AIM; check that Heat & Water are conserved
782     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
783     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
784    o add diagnostic of surface correction term in monitor output
785    
786    o bulk_force and therm_seaice
787    - Two packages:  bulk_force (Bulk forcing)
788      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
789    - Earlier integration from Stephaine Dutkiewicz
790      and Patrick Heimbach.
791    - Two ifdef statements for compile time,
792       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
793    
794    checkpoint47
795    differentiable version of checkpoint46n_post
796    o bug fix in quasihydrostaticterms
797    o * "clean" adjoint code (in terms of extensive recomputations)
798        can now be obtained for all GMREDI options (i.e. for
799        - GM_VISBECK_VARIABLE_K
800        - GM_NON_UNITY_DIAGONAL
801        - GM_EXTRA_DIAGONAL
802        - GM_BOLUS_ADVEC )
803      * However, wrong gradient check problem remains unsolved.
804      * New CPP options have been introduced for different
805        tapering schemes
806    o external_fields_load now part of differentiation list
807    o pressure needs multiple storing;
808      would be nice to have store_pressure at beginning or
809      end of forward_step, e.g. by having phiHyd global (5-dim.)
810      (NB: pressure is needed for certain cases in find_rho,
811      which is also invoked through convective_adjustment).
812    o recomputations in find_rho for cases
813     'JMD95'/'UNESCO' or 'MDJWF' are OK.
814    o #define ATMOSPHERIC_LOADING should be differentiable
815    o ini_forcing shifted to begining of initialise_varia
816    o Incorporating QNVS line search routines into MITgcm
817      (this is separate code, and therefore not under pkg)
818      lsopt/, optim/
819    o Updated verification/carbon/
820      - #define GM_VISBECK_VARIABLE_K
821      - GM_taper_scheme    = 'ldd97'    
822    
823    checkpoint46n_post
824    Merging from release1_p8:
825    o verification/natl_box:
826      updating new external_fields_load routine
827    o New package: pkg/seaice
828      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
829      The sea-ice code is based on Hibler (1979-1980).
830      Two sea-ice dynamic solvers, ADI and LSR, are included.
831      In addition to computing prognostic sea-ice variables and diagnosing
832      the forcing/external data fields that drive the ocean model,
833      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
834      The implied surface heat flux is then stored in variable
835      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
836      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
837      non-local transport term.  Because this call precedes model
838      thermodynamics, temperature under sea-ice may not be "exactly" at
839      the freezing point by the time theta is dumped or time-averaged.
840      N.B.: fairly large differences in accuracy occur across
841            different platforms/compilers; comparison between
842            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
843            generated output gives:
844       T           S           U           V
845      C D M    c        m  s        m  s        m  s        m  s
846      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
847      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
848      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
849    
850      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
851    o GAD:
852      - generated new common blocks to account for call of
853        same gad routines with differing traceridentities
854        (needed to modify tracerIdentity indices in GAD.h)
855      - generated separate common blocks for case useCubedSphereExchange
856        (Department of Futurology)
857      - parameter lists to gmredi_?transport: added tracerIdentity
858      - added new key indices to tamc.h
859    o external_fields_load:
860      - added this routine to TAF list
861      - needed to make some common blocks global and additional storing
862        along the same lines as exf package (checkpoint_lev?_directives.h)
863    o exf:
864      updated external forcing package
865      - bug fixes carried over from ecco-branch
866        (missing OBCS_OPTIONS.h in two routines)
867      - enable easy to use "no forcing".
868      - added exf I/O for atmospheric loading
869      - added exf I/O for runoff data
870      - transfered scaling between exf <-> MITgcm to exf namelist
871    o Adding new verification experiment global_with_exf.
872      This verification experiment is almost identical to the
873      global_ocean.90x40x15 experiment, except that it uses
874      the exf (and cal) package instead of the
875      external_fields_load routine (cf README file).
876    
877    checkpoint46m_post
878    o modified testscript to return -- when there are no lines of "%MON" output
879    o added new flag "quasiHydrostatic" for QH mode
880      and new routine quasihydrostaticterms()
881    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
882      New routine: mom_u_coriolis_nh()
883    o fixed sign of non-hydrostatic metric terms in u and v equations.
884      Depend on correct sign of gravitySign.
885    o added work.pc* to .cvsignore in aim directories using ifc
886    o introduced flag for controllin non-hydrostatic metric terms
887    o removed gravitySign from PARM04
888    o switched to g77/ifc from pgf77 in aim experiments
889    
890    checkpoint46l_post
891    o made convective adjustment work with pressure coordinates:
892     - changed the direction of k-loop in convective_adjustment.F for the
893       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
894     - adjusted the reference pressure k-index in convective_adjustment.F
895     - adjusted the convection condition in convect.F (in analogy to
896       calc_ivdc.F)
897     - convective_adjustment no longer computes anything on the halos
898     - removed the warnings about negative salinity from find_rho.F and
899       find_alpha.F; instead the new routine look_for_neg_salinity, called
900       at the beginning of find_rho, find_alpha, and find_beta, does a
901       check of the entire slice, if CPP-option
902       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
903    checkpoint46l_pre
904    
905    checkpoint46k_post
906    o fixed the verification/global_ocean.90x40x15 experiment:
907     - new bathymetry (the world according to A., JMC, and M.)
908     - new initial fields and forcing fields (*.bin files)
909     - new POLY3.COEFFS (for the next release one should switch to a full
910       equation of state: JMD95P or MDJWF)
911     - fixed several errors and redundancies in the data file
912     - experiment uses looped cells
913     - added matlab directory with diagnostic scripts for plotting of output
914    
915    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
916     - read AIM physics parameters from a file (data.aimphys)
917     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
918    
919    checkpoint46j_post
920    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
921    o move wVel computation at the end of the time step, in S/R integr_continuity
922    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
923    o update timeave pkg for wVel diagnostic.
924    checkpoint46j_pre
925    
926    checkpoint46i_post
927    o Clean up AIM package (and keep the results unchanged):
928      include CPP_OPTION and use IMPLICT NONE in all routines ;
929      declare all the variables _RL ; use _d 0 for all numerical constants.
930      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
931    
932    checkpoint46h_post
933    o cleaned up the use of rhoNil and rhoConst.
934      - rhoNil should only appear in the LINEAR equation of state, everywhere
935        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
936        and the dynamical equations are all divided by rhoConst
937    o introduced new parameter rhoConstFresh, a reference density of fresh
938      water, to remove the fresh water flux's dependence on rhoNil. The default
939      value is 999.8 kg/m^3
940    o cleanup up external_forcing.F and external_forcing_surf.F
941      - can now be used by both OCEANIC and OCEANICP
942    checkpoint46h_pre
943    
944     Added code to convert surface volume flux (fresh water) into
945     a mass flux when using P coordinates in the ocean (OCEANICP).
946     Note: It assumes you have set rho0=rhoConst=density of fresh water.
947    
948    checkpoint46g_post
949    o Include a new diagnostic variable phiHydLow for the ocean model
950      - in z-coordinates, it is the bottom pressure anomaly
951      - in p-coordinates, it is the sea surface elevation
952      - in both cases, these variable have global drift, reflecting the mass
953        drift in z-coordinates and the volume drift in p-coordinates
954      - included time averaging for phiHydLow, be aware of the drift!
955    o depth-dependent computation of Bo_surf for pressure coordinates
956      in the ocean (buoyancyRelation='OCEANICP')
957      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
958        Theta, Salinity, and Pressure in the parameter list. This routine is
959        presently contained in find_rho.F. This routine does not give the
960        correct density for 'POLY3', which would be a z-dependent reference
961        density.
962    o cleaned up find_rho
963      - removed obsolete 'eqn' from the parameter list.
964    o added two new verification experiments: gop and goz
965      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
966    checkpoint46g_pre
967    
968    checkpoint46f_post
969    o Enable tangent linear (forward mode) gradient checks:
970      - extended active file handling to g_... files
971      - added TANGENT_SIMULATION to theSimulationMode
972      - extended grdchk package accordingly
973    o added tangent linear setup in verification/carbon/code_ftl
974    o added adjoint setup in verification/front_relax/code_ad
975    
976    checkpoint46e_post
977    o Added new equation of state -> MDJWF
978      - EOS of McDougall et al., 2002, JAOT, submitted
979      - caveat: the equation of state is only valid for a smaller (more
980        realistic?) range of values than JMD95P/Z and UNESCO
981      - added masks to the calculation of pressure in store_pressure
982      - added more check values for density in check_eos (ini_eos.F), some of
983        the old check values are out of the range of the MDJWF-eos, so don't
984        expect perfect matches for those
985    checkpoint46e_pre
986    
987    checkpoint46d_post
988    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
989      'OCEANICP', also initialised field pressure correctly in ini_eos in the
990      case of pressure coordinates. eosType='JMD95Z' in
991      combination with buoyancyRelation='OCEANICP' now causes an error.
992    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
993      in find_alpha/beta.
994    checkpoint46d_pre
995    
996    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
997      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
998    
999    checkpoint46c_post
1000    o Changes necessary for ocean in p-coordinates
1001     -  Added new buoyancy relation = 'OCEANICP'
1002     -  Added new parameters = gravitySign (this used to be contained inside
1003        the factor dRdZ which I added when we first switched to R coordinates).
1004     X GM/Redi is not compatible (yet)
1005     X bottom drag and no-slip need to be debugged.
1006    checkpoint46c_pre
1007    
1008    checkpoint46b_post
1009    o Added new equation of state -> JMD95Z and JMD95P
1010      - EOS of Jackett and McDougall, 1995, JAOT
1011      - moved all EOS parameters into EOS.h
1012      - new routines ini_eos.F, store_pressure.F
1013    o Added UNESCO EOS, but not recommended because it requires
1014      in-situ temperature (see JMD95)
1015    o Modified formatting for knudsen2.f in utils/knudsen2 and added
1016      unesco.f to be used with POLY3
1017    checkpoint46b_pre
1018    
1019    checkpoint46a_post
1020    o Added (atmospheric) pressure loading
1021      - new field in FFIELDS.h, etc...
1022      - new cpp flag ATMOSPHERIC_LOADING
1023    o Changed hFacC to _hFacC in calc_phi_hyd.F
1024    o Added SHORTWAVE_HEATING to some files for consistency
1025    checkpoint46a_pre
1026    
1027    checkpoint46
1028    further merges from release1_p5
1029    o new ctrl package
1030      - adopted from ECCO environment to enable optimization
1031      - added Eliassen Palm fluxes to controls
1032    o added Eliassen Palm flux controls to gradient check package
1033    o cost package
1034      - Compatible with new ctrl package
1035      - added Eliassen Palm cost hooks
1036      - modif's of existing cost functions
1037    o Adjoint-related bug fixes in kpp:
1038      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
1039      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
1040    o autodiff package
1041      - flow directives:
1042        + new for S/R do_the_model_io
1043        + enhanced for S/R checkpoint
1044        + new gmredi.flow
1045      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
1046        disable adcommon.h/g_common.h by default.
1047      - fixed problem for adjoint of global_max
1048    o modified verification/carbon/
1049    o New setup for adjoint of global_ocean
1050    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
1051    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
1052    o incorporated hooks for sponge layer code (external_forcing.F)
1053    
1054    checkpoint45d_post
1055    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
1056    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
1057      (affects plume_on_slope "cg2d" output)
1058    o add new parameter deltaTfreesurf for free-surface time stepping
1059    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
1060    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
1061    o change phiMin in exp1 (to agree with documentation)
1062    o add new flags:
1063     - T,S forcing inside/outside Adams-Bashforth
1064     - turn off temp,salt advection and/or forcing
1065     - for each tracer, define internal flag for multiDimAdvection & A-B
1066    o monitor: change definition of KE to check conservation of Energy
1067    
1068    checkpoint45c_post
1069    o Removed f90 comments ("!")
1070    o Modified initialisations to enable exf package for MITgcm
1071      (without invoking ECCO_PACKAGE).
1072    o modifications to gradient check package (Martin Losch)
1073      - enable centered differences
1074      - modified format of standard output
1075    
1076    checkpoint45b_post
1077    o cleaned exchange calls in cg2d
1078    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
1079    o included CPP option SINGLE_LAYER_MODE in thermodynamics
1080      to configure barotropic setup (Martin Losch)
1081    o moved some initialisations within bi,bj loop in dynamics
1082      (TAF flow dependency)
1083    o in initialise_varia, moved call packages_init_variables
1084      before convective_adjustment_init
1085      (corresponding adjustment of TAF tape initialisation).
1086    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1087    
1088    checkpoint45a_post
1089    o compute Rho over the whole domain (extend iMin,jMin indices)
1090    o specific exchange for X-slice domain (case Ny=1)
1091    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1092    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1093    
1094    checkpoint44h_post = checkpoint45
1095    o Fix to restore differentiability:
1096      place at which packages_init_variables is called in
1097      initialise_varia is crucial for reverse control flow.
1098    o modifications in GMRedi to enable stable adjoint
1099      (corresponding modif's in thermodynamics, dynamics)
1100    o added missing hook for sponge layer code in external_forcing
1101    o modified test cost functions
1102    o storing in gad_advection (plus removal of write(0,*)!
1103    o missing headers TR1.h added in convective_adjustment routines
1104    o errorMessageUnit set non-equal zero in eeboot
1105      (conflict on some platforms, e.g. IBM SP3)
1106    o modified carbon verif.
1107    
1108    checkpoint44h_pre
1109    o vertical grid option: allow to put the Interface at the middle between
1110      2 cell-centers ; replace delZ in pkg/kpp by drF.
1111    o GM Advective form: Tracers are advected using the residual transport (=
1112      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1113    
1114    checkpoint44g_post
1115    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1116      results) ; ifdef missing in thermodynamics.F
1117    
1118    checkpoint44f_pre,checkpoint44f_post
1119    o added PTRACERS package
1120      This allows an arbitrary number of passive tracers to be integrated
1121      forward simultaneously with the dynamicaly model.
1122      + Implemented so far:
1123        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1124        - I/O and checkpointing
1125        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1126      + Not implemented so far:
1127        - KPP
1128        - OBCS
1129      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1130        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1131        line in data.pkg.
1132      + This package is disabled by default since it increases storage.
1133    
1134    
1135    o testscript: added -cleanup option
1136    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1137                 b) enable to filter 2D fields.
1138    
1139    checkpoint44e_pre,post
1140    o re-wrote convective adjustment to use pre-calculated weights
1141      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1142      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1143      Original calls to convect() still in place.
1144    
1145    chkpt44d_pre,post
1146    o added missing EXCLUDE_MONITOR flags
1147    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1148      (incompatible typ in MIN/MAX expressions caused problems
1149      on IBM SP3)
1150    o in genmake added variable MAKEDEPEND
1151      plus resetting for case SunOS
1152    o added timer_stats.c routine for IBM SP3
1153    o removed variables in dynamics
1154    !!! I forgot to create tag chkpt44d_pre !!!
1155    !!! But chkpt44d_pre = chkpt44c_post    !!!
1156    
1157    o real fresh water flux implemented with non-linear free-surface.
1158    
1159    chkpt44c_pre,post
1160    o few fix (mask in shap_s2, EmPmR in external_field_load,
1161      USE_NATURAL_BCS in solve_for_P);
1162    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1163    
1164    checkpoint44b_pre/_post
1165    o merge of relevant stuff from the ecco-branch:
1166      - genmake: removed $S64 overwrite for case SunOS
1167      - pkg/exf: update and corrections for field swapping and obcs
1168      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1169                  harmonized between ECCO and MITgcm
1170      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1171                      updated checkpointing_lev... lists for obcs
1172      - model/src: minor changes in forward_step, plot_field
1173                   added directive for divided adjoint in the_main_loop
1174      - pkg/mdsio: added mdsio_gl_slice
1175    
1176    o check parameters & config (chkpt44a_pre,post)
1177    o OBC and NonLin_FrSurf.
1178    
1179    checkpoint44
1180    o fix bug in mom_vi_del2uv
1181    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1182    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1183    o update AIM experiments (NCEP input files)
1184    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1185    o added some stuff for AD
1186    
1187    checkpoint43
1188    o added two new advection tests
1189    o added global 4x4 degree ocean test
1190    o added test of H&S94 with free surface on cube
1191    o some final mods for gradient check, adjoint,...
1192    
1193    checkpoint42
1194      Fixed AD-related problems:
1195    o Store directives up-to-date with re-arranged Adams-Bashforth
1196      (mainly thermodynamics.F)
1197    o New store directives for multi-dim. advection schemes
1198      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1199      * new common block and key passkey
1200      (mainly gad_advection.F)
1201    o Modified store directives for split of dynamics/thermodynamics
1202      for the case ALLOW_KPP
1203    o Cleaned argument list for timestep_tracer.F
1204    
1205    checkpoint41
1206    o re-formatted/added comments in prologues of key subroutines
1207      to work with protex
1208    
1209    checkpoint40
1210    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1211    o added FLT (floats) package from Arne along with demo. experiment
1212    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1213      implementation of forward-in-time forcing terms
1214    o more mods for non-linear free-surface including new variable
1215    o modified multi-dim method to work on cube
1216    o bug fix in KPP (from DM)
1217    
1218    checkpoint40pre9
1219    o added DST advection schemes
1220    o fix MPI bug on SGI's
1221    o modifications for non-linear free-surface
1222    o fixed conditionals for fixed flow/passive tracer only mode
1223    o added tension/strain form of stress tensor
1224    o changes to commenting of arguments for TAF/TAMC
1225    o added/updated many matlab scripts
1226    o added multi-dimensional advection method for tracers
1227      
1228    checkpoint40pre8
1229    o new package rw/
1230      Added method for dumping intermediate local arrays:
1231      mdsio_writetile - same as mdsio_writefield except works from inside
1232                        bi,bj loop
1233      mdsio_writelocal - same as mdsio_writetile except works for local
1234                         arrays
1235      write_local_r? - higher-level wrapper for mdsio_writelocal
1236      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1237      Example given at end of mom_vecinv.F that dumps some local arrays.
1238    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1239      control flux-form versus vector invariant code.
1240      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1241      or genmake -DISABLE ...
1242    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1243      (additional storing is now needed for case vecinv;
1244      currently nothing implemented to switch this storing off
1245      in case fluxform is used since no CPP flag available).
1246    
1247    checkpoint40pre7
1248    o bug fix in dynamics.F
1249      calc_viscosity called before k=1,Nr loop.
1250    o added some #ifdef's ALLOW_PASSIVE_TRACER
1251    o cleaned initialisations in ctrl_map_ini
1252      related to TAF
1253    
1254    checkpoint40pre6
1255    o split dynamics into thermodynamics & dynamics
1256    o corresponding split of calc_diffusivity into
1257      calc_diffusivity, calc_viscosity
1258      (kpp_calc_diff, kpp_calc_visc).
1259    o Added diffkr, kapgm to control variables
1260    o bug fix in gmredi_slope_limit for ldd97
1261    
1262    checkpoint40pre5
1263    o proper initialization of Adams-Bashforth time stepping
1264      + uses forward step for very first step of model (iter=0)
1265    o re-generated *all* output since almost all output is modified by this
1266      change (sorry but we've been putting this one off for about 2 years)
1267      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1268        *not* regenerated since they are already out of date and I don't
1269        want to create the impression that they are suddenly working.
1270    o removed KAP stuff for DEC's
1271    o modified/added many .cvsignore files in */code and */input
1272    o added new expt "solid-body.cs-32x32x1"
1273      + this uses an alternative form of ini_curvilinear_grid.F which
1274        is not necessarily any better than the current one...
1275    
1276    checkpoint40pre4
1277    o added re-initialisations of utrans,vtrans,rtrans in
1278      calc_common_factors which are crucial for TAF.
1279    o extended iMin,jMin range for calc_common_factors,
1280      calc_diffusivity
1281    o added option ALLOW_PASSIVE_TRACER
1282    o a few minor updates and fixes
1283    
1284    checkpoint40pre3
1285    o created calc_gtr1.F for gad package
1286    o split the_main_loop and re-introduced forward_step
1287    o some recomputations of nIter0 for TAMC
1288    
1289    checkpoint40pre2
1290    o Updated to latest branch of AJA, JMC
1291    o Added gradient check package
1292    o Added routines for passive tracer handling
1293    o Added carbon sequestration sensitivity experiment
1294    
1295    checkpoint39
1296     o Modifications and fixes to support TAMC
1297       (mainly missing or wrong directives)
1298     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1299       in addummy_in_stepping
1300     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1301     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1302     o Included following packages:
1303       cal: calendar
1304       exf: external forcing
1305       ecco: essential routines to control use of cal, exf
1306             (NB: this is not the full ECCO environment)
1307     o disabled some packages by default in genmake
1308    
1309    checkpoint38
1310     o see notes_c37_adj.txt
1311     o corrected wrong layer index in external_forcing_t
1312     o replaced the_main_loop/forward_step by the_main_loop
1313     o removed forceoutput from write_state
1314       (replaced criteria for initial/final state)
1315     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1316    
1317    checkpoint37
1318     o mdsio.F routine split and packaged in pkg/mdsio
1319       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1320        used unless genmake -disable=mdsio)
1321     o allow a more precise surface-geopotential gradient for the atmosphere
1322       taking into account the change in space of Alpha (=1/rho) at the surface.
1323     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1324       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1325     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1326       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1327       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1328     o Time-Average diagnostics defined as a pseudo package "timeave".
1329     o pickup files : old pickup (before c35) did not work with new code (c35
1330       and after) unless activating 2 commented lines in initialise-varia.
1331     o Non-Hydrostatic pickup file Pb fixed.
1332     o bug with Rigid-lid version (since c35) fixed.  
1333    
1334    checkpoint36
1335     o implement Crank-Nickelson barotropic time-stepping
1336     o recover Time-Average diagnostics
1337     o fix Pb in checkpoint (PR#19)
1338     o AIM become a standard package ; clean unused CPP_kees
1339    
1340    checkpoint35
1341     o subtantial rewrite of dynamics.f
1342     o allows staggered time-stepping
1343     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1344     o added bottom drag (linear + quadratic)
1345    
1346    checkpoint34
1347     o Modified exchange routines for correct reverse simulation.
1348     o Added verification output to comply with bug fix in impldiff.F
1349       as of c33 (exp2, natl_box).
1350     o Corrected store directives in dynamics.F
1351     o Corrected array boundaries in impldiff.F
1352     o Corrected array dimensions in gmredi.
1353       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1354     o Added routine GLOBAL_SUM_INT to global_sum.F
1355     o Added mdsio_gl.F for ECCO purposes.
1356    
1357    checkpoint33
1358     o Fixed bug in lower BC in impldiff.F
1359     o Fixed confusion about units of forcing arrays in FFIELDS.h
1360       namely Fu,Fv,Qnet,Qsw,EmPmR:
1361       - Removed verification/natl_box/code/external_fields_scale.F
1362         (did not differ from that in model/src)
1363       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1364         (see FFIELDS.h for description)
1365       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1366         kpp_calc.F and kpp_transport_t.F
1367       - Removed model/src/external_fields_scale.F and calls to it
1368       - verification/natl_box uses flux data with "atmospheric" sign so
1369         a special version of external_fields_load.F is used to
1370         change the data as it's read in. This way, the arrays
1371         have the right units and signs at all times tha a user could
1372         possibly use them.
1373     o Corrected genmake to delete a temporary file during configuration
1374    
1375    checkpoint32
1376     o Scaling of forcing fields moved from external_forcing.F to
1377       external_fields_scale.F, called directly after loading fields.
1378     o Surface relaxation terms added to surface tendency fields in
1379       extra subroutine.
1380     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1381       fields.
1382     o Changes in GMRedi to comply with packaging structure.
1383     o Modifications and bug fixes in KPP package.
1384     o Verification experiment for KPP added (verification/nat_box/)
1385    
1386    checkpoint31
1387     o Packages interface brought in line with defined standard
1388       -> new routines packages_...F
1389       -> changes in initialise_fixed.F, initialise_varia.F
1390       -> enables initialisation interface for ECCO package
1391     o Rescaling of external forcing fields immediately after read
1392       (removed from external_forcing.F)
1393       -> new: surface_fields_scale.F
1394       -> affects ini_foorcing.F, external_fields_load.F
1395     o Computation of surface tendencies before tendency updates.
1396       -> new: external_forcing_surf.F
1397     o Change of variable names useGMRedi, useKPP, useECCO
1398     o Further changes in dynamics.F, impldiff.F for TAMC
1399     o Tested for experiments 0, 2, 4.
1400       - not yet tested for GMRedi.
1401       - not yet tested for KPP.
1402    
1403    checkpoint30
1404     o Updates for OBCs
1405     o New experiment for test OBCs (internal_wave)
1406     o New output.txt in verification/exp4/results/
1407     o Updates for KPP: calculation of viscosity corrected, new variables
1408       kpp_dumpFreq and kpp_taveFreq
1409     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1410       and entry for T90 in genmake
1411    
1412    checkpoint29
1413     o packaged KPP and GM/Redi
1414    
1415    checkpoint28
1416     o Corrected initialization of hFacMin for difference vertical coordinates
1417     o Modified calculation of partial cell thickness to more robust algorithm
1418     o config_summary.F: replaced write_1D_... by write_0D_...
1419       read_write.F: added subroutines write_0D_...
1420     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1421       included some initialisations required for TAMC.
1422     o routine calc_isoslopes: modified sqrt computation to make it
1423       differentiable for zero argument.
1424     o routines dynamics, impldiff:
1425       included store directives and tape key computations required for TAMC.
1426     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1427    
1428    checkpoint27
1429     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1430       formulation works properly with variable resolution.
1431     o restructured the calling tree between the_model_main() and dynamics()
1432     o split initialise() into initialise_fixed() and initialise_varia()
1433     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1434       in new routine ini_psurf()
1435    
1436    checkpoint26
1437     o moved some #ifdef in optional routines to encompass everything
1438       except the argument declarations. This was using up some memory.
1439     o fixed macros like _ADT to work with both versions of Linux cpp
1440     o cleaned up some unused and uninitialized variables
1441       (helps when debugging with strict compile options)
1442     o split up CPP_EEOPTIONS.h into options and macros
1443       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1444     o patch for 2 processor JAM mode
1445    
1446    checkpoint25
1447     o updates for OBCs and NH
1448     o dramatically reduced memory usage
1449     o added "JAM" routines for use on Artic network
1450     o parameterization of convection by implicit vertical diffusion
1451     o added a diagnostic of convective index
1452     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1453       (this is was partly for OBCs and NH but also in anticipation of
1454        an explicit free-surface option)
1455     o initial state input files for U and V
1456    
1457    checkpoint24
1458     o Removed some spurious "REAL"s
1459     o Updated KPP to latest version from JPL
1460     o Added a COS(latitude) in horizontal viscosity
1461    
1462    checkpoint23
1463     o Added del^4 diffusion for salt and temperature
1464     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1465    
1466    checkpoint22
1467     o Made many small changes: implicit none, format(i5), etc...
1468     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1469    
1470    checkpoint21
1471     o Introduced new I/O package that supports direct-access records (mdsio.F)
1472     o Split-up mid-level I/O routines
1473     o Updated input data for experiments 0,1,2,4 and 5
1474     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1475    
1476    checkpoint20
1477     o Tidied up open-boundaries some more
1478     o Added non-hydrostatic code
1479     o Fixed some input data
1480     o Modified MPI start-up to work in "coupled" context.
1481    
1482    checkpoint19
1483     o Tidied up directory structure for verification experiments.
1484     o Added new code for open boundaries.
1485     o Corrected advective terms near boundaries.
1486     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1487     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1488     o Split default parameters out of ini_parms.F into set_defaults.F.
1489    
1490    checkpoint18
1491     o Further changes for optional code generation with
1492       CPP - ugh!
1493    
1494  checkpoint17  checkpoint17
1495   o Beginning to incorporating modularity   o Beginning to incorporating modularity
1496     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.

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