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revision 1.14 by cnh, Tue Sep 29 18:57:53 1998 UTC revision 1.221 by dimitri, Mon Dec 8 02:13:59 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
7    o added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
8    
9    checkpoint52d_pre
10    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
11    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
12    
13    checkpoint52c_post
14    o Fixing OPTIONS files for use of exf:
15      - ALLOW_ECCO not needed
16      - ECCO_CPPOPTIONS.h should not be included from
17        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
18        as has been the case in the past
19      - All cal/exf related options are currently set in
20        single header file. Should remain so until we
21        agree on a consistent new policy.
22    o Removed all CPP options for cal package.
23      cal has no more CPP options.
24    o modified STOREs in GAD_ADVECTION
25    o corrected key comp. for passkey
26    
27    checkpoint52b_post
28    o new version: "thsice" of thermodynamic sea-ice pkg:
29     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
30     - modify fluxes but do not change theta directly;
31     - light cleaning of bulk_force pkg (still needed with thsice).
32     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
33       + output_thsice.txt to test thsice & bulk_force pkgs.
34    o put back grid & coriolis monitor output.
35    checkpoint52b_pre
36    
37    o call "do_the_model_io" at the beginning (=> dump initial state)
38    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
39    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
40      (need info on NUMBER_OF_PTRACERS)
41    o missing PTRACERS headers in some routines
42    o default tamc.h in pkg/autodiff supposed to crash
43      to ensure proper customization
44    
45    checkpoint52a_post
46    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
47      - moved surfaceTendencyTice from pkg/seaice to main code
48      - subroutine FREEZE_SURFACE now limits only surface temperature
49        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
50        => new output.txt for global_ocean.cs32x15 & global_with_exf
51      - keep the old version of FREEZE for backward compatibility;
52        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
53      - corresponding modifs for TAF directives
54    o added surface flux output variables to TIMEAVE_STATVARS
55    o time-averaged output for pkg/ptracers
56    o fix problem with ECCO-related divided adjoint
57      snapshot file was missing some ad-variables,
58      but no warning issued by TAF
59    
60    checkpoint52a_pre
61    o some bug fixes for #undef REAL4_IS_SLOW
62    
63    checkpoint52 = ecco_c52_e35
64    o after testing adjoints of checkpoint51u_post
65    
66    checkpoint51u_post
67    o this is the post-merge tag of the ecco-branch
68      (needs another clean checkout and re-testing)
69    o various natl_box_adjoint configs and results
70      but no input fields
71    o obcs adjoint not yet merged!
72    o adding ECCO global 1x1 and 2x2 degree configs
73    o updated/extended some store directives for seaice
74    o pkg/ecco now containes ecco-specific part of cost function
75    o top level routines the_main_loop, forward_step
76      supersede those in model/src/
77      previous input data.cost now in data.ecco
78      (new namelist ecco_cost_nml)
79    o in ctrl/ cleaned some cross-dependencies and updated CPP options
80    
81    checkpoint51t_post
82    o this is the pre-merge tag of the ecco-branch
83    
84    checkpoint51s_post
85    o cleanup: removed various obsolete #define-s
86    o pkg/grdchk
87      - renamed 'ph-grd 3' to 'grad-res'
88      - merged from ecco-branch
89        (remaining bug fixes for obcs gradient checks)
90      - additional high-precision output for testreport
91        (grep for 'precision_grdchk_result')
92    
93    checkpoint51r_post
94    o cleaned up or removed CPP_OPTIONS.h files
95    o updated results for some of the tests to reflect the new
96      optfiles (-ieee: -O0 instead of -O3)
97    
98    checkpoint51q_post
99    o cd_code:
100      - moved cd_scheme.F -> cd_code_scheme.F
101      - separate read_checkpoint from cd_code_ini_vars.F
102      - separated cd_code part from write_checkpoint
103      - updated AD_SOURCE, generated .flow
104      - added CD_CODE_VARS.h to the_main_loop
105      - Moving cd_code specific store dir.s to pkg/cd_code
106    o ctrl package totally restructured
107      - pack/unpack now optional and decoupled from
108        xx_/adxx_ I/O
109      - ctrl_pack/unpack cleaned
110        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
111      - confined inclusion of AD_CONFIG.h to where necessary.
112    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
113    
114    checkpoint51p_post
115    o create initial cd_code package
116      - WARNING: the initialization of fields within packages
117        is broken because INI_FIELDS (where READ_CHECKPOINT is
118        called) is called *before* PACKAGES_INIT_VARIABLES.
119        This seems to be backwards since
120        1) its important to initially zero the entire field including
121           the "halo" region
122        2) zeroing needs to be done *before* reading pickup info
123           and the pickup call might or might not happen in any
124           particular run
125      - this needs an overhaul for R2
126    o cleanup verification/*/code/GMREDI_OPTIONS.h
127    o cleanup testreport
128    
129    checkpoint51o_post
130    o bringing AD-related verif's up to date with genmake2
131      - carbon/
132      - global_ocean.90x40x15/
133      - hs.94.1x64x5/
134      - (front_relax/ )
135    o (more) consistent directory structure for AD-related verif.'s
136    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
137    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
138    o bug fix in find_alpha.F for MDJWF:
139      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
140        change rho -> rho-rhoConst
141      - replace call find_rho to find_rhonum
142    o initialisation of rFlx extended to full array (required by TAF)
143      and shifted to thermodynamics
144    o removed PTRACERS.h in ptracers routine
145    o added surfacetendencyPtr to S/R parameter list pracers_forcing
146    o Correcting initialisations for fVerU, fVerV.
147    o helping TAF to recognize dependency on kUp for
148      fVerU, fVerV
149    o Replacing delZ by delR in pkg/ctrl/
150    checkpoint51o_pre
151    
152    o undid all of cp51 pending some cleanups and discussion
153    o added the [#include "AD_CONFIG.h"] statement to all files that need
154       it for adjoint/tl #defines
155     o re-worked the build logic in genmake2 to support AD_CONFIG.h
156     o removed tools/genmake since it no longer works
157    
158    checkpoint51n_post
159    o modifications to make FREEZE flux visible to pkg/kpp
160      - moved surfaceTendencyTice from pkg/seaice to main code
161      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
162      - subroutine FREEZE now limits only surface temperature
163        (this means new output.txt for global_ocean.90x40x15,
164         global_ocean.cs32x15, and global_with_exf)
165    o added surface flux output variables to TIMEAVE_STATVARS
166    
167    checkpoint51n_pre
168    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
169    o added [#include "AD_CONFIG.h"] to all files that use the following
170      defines:
171      - ALLOW_ADJOINT_RUN
172      - ALLOW_TANGENTLINEAR_RUN
173      - ALLOW_ECCO_OPTIMIZATION
174    
175    checkpoint51m_post
176    o incorporating changes to get TAMC/TAF working in genmake2
177      - added new TAMC/TAF targets to the Makefile
178      - various cleanups related to package handling
179      - these changes should have no impact on the forward model
180    
181    checkpoint51l_post
182    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
183     - faster algorithm for cal_addtime.F
184     - higher precision arithmetic, where needed
185     - pkg/exf *startdate variables changed from calendar date to
186       model integration time
187    
188    checkpoint51l_pre
189    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
190    o enable to apply restoring on S & T only in a latitude band.
191    o update output (external_forcing_surf modif. change truncation errors)
192       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
193    
194    checkpoint51k_post
195    o change default to: useNHMTerms=.FALSE.
196     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
197       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
198     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
199        exp1, ideal_2D_oce
200     - change data file of oceanic exp (leave the results unchanged for now)
201       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
202    o set gravitySign automatically according to the vertical coordinate used
203      (and change sign: back to "logical" value: +1 when R increases downward)
204    o added an include barrier to the default CPP_OPTIONS.h and
205      removed the #include "PACKAGES_CONFIG.h" from it
206    o fix a bug in mom_fluxform (from chk51j_post)
207    
208    checkpoint51j_post
209    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
210    o adjusted some flow directives (dynamics, thermodynamics)
211    o added cubed-sphere case to test cost function
212    o heckpoint_lev?_directives.h now include
213      pkg-specific directives, whenever those are enabled.
214    o Moving pkg-specific flow directives to corresponding pkg
215      Moving pkg-specific differentiation list to corresponding pkg
216      Moving pkg-specific checkpoint-lev storing to corresponding pkg
217      ---> conventions are
218           - pkg_ad.flow
219           - pkg_ad_diff.list
220           - pkg_ad_check_lev?_dir.h
221    
222    checkpoint51i_post
223    o merge of the branch-genmake2
224      - knowingly breaks the older genmake
225      - automatic generation of all ALLOW_${PKG_NAME} defines
226      - new testreport supersedes older testscript
227    o large number of package inclusion and header cleanups
228    checkpoint51i_pre
229    
230    o new output for adjoin of global ocean vector invariant
231    o fix for checkpoint of thermodynamic seaice and bulk_force
232    o Steph gchem various cleanups
233    
234    checkpoint 51h_pre
235    o fixed some single quotes
236    o modify gchem pkg to be more versatile
237    o modifications to clean up dic pkg
238    o add pkg/cfc
239    
240    checkpoint51g_post
241    o provide links for ARPACK and ADM*TLM
242    o start removing verification/vero/
243    o update AD-related stuff
244      (in particular some IF-statements in model/src/ routines)
245    o adding to verification/global_ocean.90x40x15/ adjoint of
246      vector invariant setup
247    
248    checkpoint51f_post
249    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
250    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
251      of tracer Green's fucntions for ocean inversion project.
252    
253    checkpoint51f_pre
254    o Added on-the-fly spatial interpolation capability
255        "USE_EXF_INTERPOLATION" to pkg/exf.
256      - This is a temporary Cartesian-grid hack until
257        the super-duper ESMF coupler becomes available.
258      - See verification/global_with_exf/README for usage example.
259      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
260        flags and modified pkg/seaice accordingly.
261    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
262        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
263        non-local transport term.
264    
265    checkpoint51e_post
266    o pkg/mom_vecinv:
267      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
268      - add time-ave diagnostic of vorticity advection.
269    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
270    o atmospheric geopotential: - include water vapor effect;
271                                - use p^kappa in p* scaling.
272    o land pkg: read initial state from files.
273    o AIM : add stratospheric drag in the upper level
274    
275    checkpoint51d_post
276    o change function ILNBLNK (=> last non-blank char.) to return zero
277      (instead of the string length) when the string. char is empty
278    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
279    o modif's to restore TAMC compatibility
280      - avoid "_d" constructs in PARAMETER declarations
281      - avoid interrupting lines by comment lines
282    o Use cluster local disks for purely local I/O
283      vs. globally visible disks needed for ctrl stuff
284      (merged from ecco-branch)
285      - new active_file_loc... and mdsio_..._loc routines
286      - affected packages: autodiff, ctrl, grdchk, mdsio
287    
288    checkpoint51c_post
289    o introducing integer flag debugLevel
290      - debLevZero: suppress all output
291      - debLevA: standard
292      - debLevB: equivalent to current debugMode=.TRUE.
293    o introducing pathname variable mdsioLocalDir for mdsio
294      that can be specified at runtime
295      (relevant for cluster I/O to local disk)
296    `
297    >>>checkpoint51b_post
298    adjoint of ptracers
299    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
300    o extended state in checkpoint_lev?, etc.
301    o alternative ctrl/cost with tr1 or ptracer
302    o new comlev1_bibj_ptracers
303    o new ptracers.flow
304    o made ptracers_forcing same as external_forcing_s
305    o added verification for adjoint with ptracers
306      - adm. grdchk fail so far
307      - tlm. grdchk OK
308      - checked tapelev/comlev recomputations: OK
309    <<<checkpoint51b_pre
310    
311    checkpoint51a_post
312    o added code for biogeochemistry package
313      - new pkgs: dic, gchem
314      - new subroutine in ptracers
315    o modify code for biogeo packages
316      - in model/src and pkg/ptracers
317    
318    checkpoint51
319    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
320      - autodiff, ctrl, exf, grdchk, seaice
321      kept separate packages
322      - cost, ecco, obcs
323    o updating verification/internal_wave, verification/lab_sea
324      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
325    
326    checkpoint50i_post
327    o Preparing next differentiable checkpoint and sync
328      of MAIN vs. ecco-branch
329      - 1st step: this one is differentiable
330      - 2nd step: next(! not this) checkpoint will have updated packages
331                  from ecco-branch)
332    
333    checkpoint50h_post
334    o new package "land": provide surface BC for AIM.
335    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
336    o AIM: use true log-P extrapolation for near surface temp (= as in
337        F.Molteni paper) ; update aim.5l_cs output.
338    o New variable in PARM03 for more flexible pickups
339    o somewhat cleaned package initialisation sequence for
340      ctrl/ cost/ ecco/ in packages_... routines
341    
342    checkpoint50g_post
343    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
344      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
345      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
346        made the default because of faster convergence than ADI
347    
348    checkpoint50f_post
349    o exf totally restructured
350      - replaced all exf_set_ routines by one generic exf_set_gen.F
351        and made sure it's still differentiable
352      - split exf_getffields.F into new exf_bulkformulae.F
353      - exf_inscal_/exf_outscal_ suffixes consistent with field names
354      - updated adjoint/makefile and relevant verif. accordingly
355    
356    checkpoint50f_pre
357     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
358          + change Evap over land. (update aim.5l_cs output)
359     o added missing .cvsignores and made uniform across expts
360     o changed configuration of tidal_basin_2d expt
361     o added pkg/debug functions for tracing code in fatal crashes
362     o tidied pkg/monitor to use MONITOR_OPTIONS.h
363     o new fn in pkg/monitor to stop model if solution grows too big
364     o removed lots of single quotes from comments
365    
366    checkpoint50e_post
367    o make KPP work with PTRACERS
368     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
369       nearly a copy of kpp_transport_s
370     - there is no analogue to SurfaceTendencyS, so I have to use
371       gPtr(of the surface layer) instead
372    o add a new platform SunFire+mpi (SunFire 15000) to genmake
373    checkpoint50e_pre
374    
375    checkpoint50d_post
376    o change kpp output from multiple-record state files to single-record state
377      files analogous to write_state.F
378    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
379      analogous to the cg2d-related output.
380    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
381      so that writing to internal file fn (with length 512) fails.
382    checkpoint50d_pre
383    
384    checkpoint50c_post
385    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
386    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
387    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
388    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
389    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
390    
391    checkpoint50c_pre
392    Merging from release1_p13:
393    o bug fix for pkg/seaice dynamic solver
394    o Added SEAICE_initialHEFF to pkg/seaice
395    
396    checkpoint50b_post
397    o store u*,v* in gU,V instead of in guNm1,gvNm1
398    o in order to put the momForcing out of the Adams-Bashforth:
399      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
400      to timestep.F
401    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
402    o re-generate output for highly sensitive test-exp:
403       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
404    
405    checkpoint50b_pre
406    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
407    o corrected CPP option mismatch in exf_Bulk... functions for case
408      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
409    
410    checkpoint50a_post
411    o Bug fix for merging between c50 and KPP.
412      ikey was passed from thermodynamics to kpp_calc via
413      common block rather than being recomputed in kpp_calc,
414      in contradiction with new key itdkey.
415      New key ikppkey created, and tamc.h headers updated.
416    
417    checkpoint50
418    - 2nd step of merge with ecco-branch:
419      merge changes in ecco-branch back into main trunk
420    - bug fix in find_alpha
421    - more storing in gmredi_calc_tensor.F, kpp_routines.F
422    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
423    - merged some sliced AD support routines
424    
425    checkpoint49
426    merged from ecco-branch:
427    o exf:
428      - Enable initialisation of forcing fields to constant
429        (runtime) values.
430      - in exf_getffields.F
431        Reduce i-/j-loop to interior domain, discarding overlaps.
432        That also fixes wrong TAF-key computations for key_1, key_2
433        with bulf formulae.
434      - exf_init.F modify #ifdef for exf_init_evap
435      - exf_getffieldrec.F, ctrl_getrec.F
436        The following INT-usages are not safe:
437          fldsecs  = int(fldsecs/fldperiod)*fldperiod
438          fldcount = int(fldsecs/fldperiod) + 1
439        and were modified.
440    o autodiff: checkpoint_lev...
441      - updated storing for bulk formulae (some arrays were missing)
442      - added state for seaice package
443      - synchronized with main branch
444    o DIVA:
445      Modif.s in
446      - the_main_loop.F
447      - the_model_main.F
448      and added cost_final_restore.F cost_final_store.F
449      o With these changes, it is possible to fully separate
450        the first forward run to compute the cost function (mdthe_main_loop)
451        and adjoint runs over individual DIVA intervals (adthe_main_loop)
452        into separate model executions.
453        This enables better tuning of DIVA to given queue sizes.
454      o Loss of cost function value in consecutive DIVA runs is
455        fixed by storing to 'costfinal' file.
456      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
457        beginning/end of adjoint integration is accounted for.
458      The current changes apply to TAF-1.4.26.
459      TAF has one remaining bug, requiring one manual change
460      (see MITgcm manual).
461    o cal: synchronized between MAIN and ecco-branch
462    
463    checkpoint48i_post
464    o Changes to restore differentiability of code w.r.t. previous tag
465      (mostly adding new routines to make list and replacing
466      pressure by totPhiHyd).
467    o Updated and merged grdchk package
468      - has both ADM and TLM checks
469      - works for single- and multi-proc.
470      - output cleaned
471      - worked successfully for parallel DIVA
472    o genmake:
473      - Adding -platform=SP4
474      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
475    o Modif. for DIVA:
476      ctrl_unpack should not be called in intermediate DIVA interval.
477      (similar thing would apply for active files such as
478      tbar, sbar, psbar, which should not be reinitialised;
479      only relevant for ecco-branch)
480    
481    checkpoint48h_post
482    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
483    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
484    o Added SEAICE_initialHEFF to pkg/seaice
485    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
486    
487    checkpoint48g_post
488    --- EOS:
489    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
490      store total Potential in totPhyHyd for diagnostics & EOS.
491    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
492    --- Pressure/geopotential gradient:
493    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
494    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
495      ( changes results of global_ocean_pressure )
496    o NLFS + z-coord.: add eta*Rho' contribution.
497    o accurate phiHyd when using interface-W at the middle between 2 centers
498     ( changes results of ideal_2D_oce )
499    o includes r* 2nd term in potential gradient.
500    
501    checkpoint48f_post
502    Merging from release1_p12:
503    o Modifications for using pkg/exf with pkg/seaice
504      - improved description of the various forcing configurations
505      - added basic radiation bulk formulae to pkg/exf
506      - units/sign fix for evap computation in exf_getffields.F
507      - updated verification/global_with_exf/results/output.txt
508    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
509      (SBO) core products, including oceanic mass, center-of-mass,
510      angular, and bottom pressure (see pkg/sbo/README.sbo).
511    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
512      to avoid negative values in shallow regions.
513      - updated verification/natl_box/results/output.txt
514      - updated verification/lab_sea/results/output.txt
515    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
516    o Added useSingleCpuIO option (see PARAMS.h).
517    o Updated useSingleCpuIO option in mdsio_writefield.F to
518      work with multi-field files, e.g., for single-file pickup.
519    o pkg/seaice:
520      - bug fix in growth.F: QNET for no shortwave case
521      - added HeffFile for specifying initial sea-ice thickness
522      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
523    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
524      kpp_transport_t.F, forward_step.F, and the_main_loop.F
525    o pkg/seaice:
526      - adjoint-friendly modifications
527      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
528    
529    checkpoint48e_post
530    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
531    o dynamics: change definition of computational domain & adapt mom_fluxform
532      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
533    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
534        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
535        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
536        global_ocean.90x40x15 global_with_exf global_ocean_pressure
537        inverted_barometer solid-body.cs-32x32x1
538      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
539    
540    checkpoint48d_post
541    o in preparation for r*:
542     a) use pre-computed gradient of hydrostatic potential:
543        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
544     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
545        => affects results of glob_oce_pressure (different truncation error)  
546      update output.txt of ideal_2D_oce & global_ocean_pressure
547    
548    checkpoint48d_pre
549    o in preparation for r*:
550      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
551      pass the 2 comp. of the grad. as arguments to momentum S/R.
552      but for the moment, only used if it does not change the results.
553    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
554    
555    checkpoint48c_post
556    Modifications in treatment of initial flux forcing controls
557    to avoid extra storing of flux fields.
558    
559    checkpoint48c_pre
560    o Added tidal_basin_2d experiment (currently 1D!)
561    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
562    
563    checkpoint48b_post
564    o r* coordinate added in #ifdef NONLIN_FRSURF block.
565     (modification to pressure gradient not yet implemented)
566    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
567      (for U & V) that are used for vertical advection of momentum.
568    
569    checkpoint48a_post
570    o In preparation for r*, use temp. array to compute vertical transport
571       in flux-form momentum pkg. => change results of few test-exp.
572      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
573                        lab_sea, natl_box & plume_on_slope
574    
575    checkpoint48
576    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
577    
578    checkpoint47j_post
579    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
580    o moved adexch from forward_step to addummy_in_stepping
581    o added exch in ctrl_map_...
582    o aveFreq.=0. at end of cost_final to avoid overwrite in
583      reverse checkpointing loop
584    o Yet more changes in gmredi:
585      * adgmredi_calc_tensor
586        avoiding all recomputation of gmredi_slope_limit
587      * adgmredi_x/y/rtransport
588        added flag for excessive storing to avoid recomp. of
589        u/v/rtans, dTdx/y/z
590        -> this is not really necessary and very memory-consuming
591      * adgmredi_slope_psi:
592        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
593      * gmredi_slope_limit
594        re-activated full calculation of taperfct for case 'ac02'
595    o updating verification/ adjoints of carbon, global_ocean.90x40x15
596    
597    checkpoint47i_post
598    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
599    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
600      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
601    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
602    o gmredi: fix few bugs.
603    
604    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
605    This will be a good checkpoint to plug into the ecco-branch.
606    o few modif.'s to get latest version adjointed
607      (mainly kick out code in ini_linear_phisurf)
608    o modif's to run adjoint with exactConserv
609    o case GM_BOLUS_ADVEC should be cleaned
610      S/R gmredi_slope_psi should be cleaned
611    o verification/carbon now has exactConserv=.TRUE.
612    
613    checkpoint47g_post
614    o time-average AIM output: becomes independent from statvars time-average
615      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
616    o After TAF bug fix:
617      Tested adjoint of gmredi package.
618      Tests were done with checkpoint47 rather than with latest
619      checkpoint47f_post since the latter is broken for the adjoint
620      verification/carbon/ contains both ADM and TLM gradient checks.
621    Here they are, before they get changed/lost/stolen.
622    Mostly modif.'s to fix numerical sensitivities.
623    Gradient checks OK for
624    - GM_taper_scheme:
625      * clipping
626      * ac02
627      * linear
628      * glw91
629      * dm95
630      * ldd97
631    - GMREDI_OPTIONS:
632      * GM_VISBECK_VARIABLE_K
633      * GM_NON_UNITY_DIAGONAL
634      * GM_EXTRA_DIAGONAL
635      * GM_BOLUS_ADVEC
636    in conjunction with data.gmredi parameters to be checked in
637    in a few minutes under verification/carbon/code/
638    
639    checkpoint47f_post
640    Merging from release1_p10:
641    o modifications for using pkg/exf with pkg/seaice
642      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
643        and SEAICE_EXTERNAL_FLUXES
644      - pkg/exf CPP options EXF_READ_EVAP and
645        EXF_NO_BULK_COMPUTATIONS
646      - usage examples are Experiments 8 and 9 in
647        verification/lab_sea/README
648      - verification/lab_sea default experiment now uses
649        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
650    
651    checkpoint47e_post
652    o created a tag prior to creating a branch
653    
654    checkpoint47d_post
655    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
656      at the bottom boundary had an erroneous half slip boundary condition
657    o added bottom drag and no slip boundary condition capabilities to
658      oceanic pressure coordinates code
659    o added new verification experiment global_ocean_pressure, this experiment is
660      also described in the tutorial section of the manual
661    checkpoint47d_pre
662    
663    checkpoint47c_post
664    o Added a verification experiment for a global cubed-sphere ocean run
665      -  verification/global_ocean.cubed32x32x30
666      -  uses pkg/therm_seaice and pkg/bulk_forcing
667    
668    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
669    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
670      when using P-coordinate; only implemented for atmospheric config.
671    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
672      NOTES: requires option NONLIN_FRSURF to be "#define".
673    o update advect_xz/results/output.txt (left from checkpoint44g_post)
674    
675    checkpoint47b_post
676    Merging from release1_p9:
677    o pkg/seaice
678      - removed GOTO's and added taf directives
679      - double precision constants to reduce the g77 (Linux)
680        to F77 (SGI) differences reported in release1_p8
681    o tools/genmake
682      - added SGI options
683    o verification/testscript
684      - updated to that of checkpoint47a_post
685    o verification/global_ocean.90x40x15/input/eedata
686      - modified for SGI f77 compatibility
687    o verification/lab_sea
688      - added description of sea-ice model
689      - added missing matlab routines
690      - added test of thermodynamics parallelization
691    
692    checkpoint47a_post
693    o new pkg: aim_v23
694     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
695       for now, keep the same surface forcing as before.
696     - Part-Cell implemented into AIM; check that Heat & Water are conserved
697     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
698     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
699    o add diagnostic of surface correction term in monitor output
700    
701    o bulk_force and therm_seaice
702    - Two packages:  bulk_force (Bulk forcing)
703      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
704    - Earlier integration from Stephaine Dutkiewicz
705      and Patrick Heimbach.
706    - Two ifdef statements for compile time,
707       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
708    
709    checkpoint47
710    differentiable version of checkpoint46n_post
711    o bug fix in quasihydrostaticterms
712    o * "clean" adjoint code (in terms of extensive recomputations)
713        can now be obtained for all GMREDI options (i.e. for
714        - GM_VISBECK_VARIABLE_K
715        - GM_NON_UNITY_DIAGONAL
716        - GM_EXTRA_DIAGONAL
717        - GM_BOLUS_ADVEC )
718      * However, wrong gradient check problem remains unsolved.
719      * New CPP options have been introduced for different
720        tapering schemes
721    o external_fields_load now part of differentiation list
722    o pressure needs multiple storing;
723      would be nice to have store_pressure at beginning or
724      end of forward_step, e.g. by having phiHyd global (5-dim.)
725      (NB: pressure is needed for certain cases in find_rho,
726      which is also invoked through convective_adjustment).
727    o recomputations in find_rho for cases
728     'JMD95'/'UNESCO' or 'MDJWF' are OK.
729    o #define ATMOSPHERIC_LOADING should be differentiable
730    o ini_forcing shifted to begining of initialise_varia
731    o Incorporating QNVS line search routines into MITgcm
732      (this is separate code, and therefore not under pkg)
733      lsopt/, optim/
734    o Updated verification/carbon/
735      - #define GM_VISBECK_VARIABLE_K
736      - GM_taper_scheme    = 'ldd97'    
737    
738    checkpoint46n_post
739    Merging from release1_p8:
740    o verification/natl_box:
741      updating new external_fields_load routine
742    o New package: pkg/seaice
743      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
744      The sea-ice code is based on Hibler (1979-1980).
745      Two sea-ice dynamic solvers, ADI and LSR, are included.
746      In addition to computing prognostic sea-ice variables and diagnosing
747      the forcing/external data fields that drive the ocean model,
748      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
749      The implied surface heat flux is then stored in variable
750      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
751      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
752      non-local transport term.  Because this call precedes model
753      thermodynamics, temperature under sea-ice may not be "exactly" at
754      the freezing point by the time theta is dumped or time-averaged.
755      N.B.: fairly large differences in accuracy occur across
756            different platforms/compilers; comparison between
757            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
758            generated output gives:
759       T           S           U           V
760      C D M    c        m  s        m  s        m  s        m  s
761      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
762      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
763      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
764    
765      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
766    o GAD:
767      - generated new common blocks to account for call of
768        same gad routines with differing traceridentities
769        (needed to modify tracerIdentity indices in GAD.h)
770      - generated separate common blocks for case useCubedSphereExchange
771        (Department of Futurology)
772      - parameter lists to gmredi_?transport: added tracerIdentity
773      - added new key indices to tamc.h
774    o external_fields_load:
775      - added this routine to TAF list
776      - needed to make some common blocks global and additional storing
777        along the same lines as exf package (checkpoint_lev?_directives.h)
778    o exf:
779      updated external forcing package
780      - bug fixes carried over from ecco-branch
781        (missing OBCS_OPTIONS.h in two routines)
782      - enable easy to use "no forcing".
783      - added exf I/O for atmospheric loading
784      - added exf I/O for runoff data
785      - transfered scaling between exf <-> MITgcm to exf namelist
786    o Adding new verification experiment global_with_exf.
787      This verification experiment is almost identical to the
788      global_ocean.90x40x15 experiment, except that it uses
789      the exf (and cal) package instead of the
790      external_fields_load routine (cf README file).
791    
792    checkpoint46m_post
793    o modified testscript to return -- when there are no lines of "%MON" output
794    o added new flag "quasiHydrostatic" for QH mode
795      and new routine quasihydrostaticterms()
796    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
797      New routine: mom_u_coriolis_nh()
798    o fixed sign of non-hydrostatic metric terms in u and v equations.
799      Depend on correct sign of gravitySign.
800    o added work.pc* to .cvsignore in aim directories using ifc
801    o introduced flag for controllin non-hydrostatic metric terms
802    o removed gravitySign from PARM04
803    o switched to g77/ifc from pgf77 in aim experiments
804    
805    checkpoint46l_post
806    o made convective adjustment work with pressure coordinates:
807     - changed the direction of k-loop in convective_adjustment.F for the
808       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
809     - adjusted the reference pressure k-index in convective_adjustment.F
810     - adjusted the convection condition in convect.F (in analogy to
811       calc_ivdc.F)
812     - convective_adjustment no longer computes anything on the halos
813     - removed the warnings about negative salinity from find_rho.F and
814       find_alpha.F; instead the new routine look_for_neg_salinity, called
815       at the beginning of find_rho, find_alpha, and find_beta, does a
816       check of the entire slice, if CPP-option
817       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
818    checkpoint46l_pre
819    
820    checkpoint46k_post
821    o fixed the verification/global_ocean.90x40x15 experiment:
822     - new bathymetry (the world according to A., JMC, and M.)
823     - new initial fields and forcing fields (*.bin files)
824     - new POLY3.COEFFS (for the next release one should switch to a full
825       equation of state: JMD95P or MDJWF)
826     - fixed several errors and redundancies in the data file
827     - experiment uses looped cells
828     - added matlab directory with diagnostic scripts for plotting of output
829    
830    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
831     - read AIM physics parameters from a file (data.aimphys)
832     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
833    
834    checkpoint46j_post
835    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
836    o move wVel computation at the end of the time step, in S/R integr_continuity
837    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
838    o update timeave pkg for wVel diagnostic.
839    checkpoint46j_pre
840    
841    checkpoint46i_post
842    o Clean up AIM package (and keep the results unchanged):
843      include CPP_OPTION and use IMPLICT NONE in all routines ;
844      declare all the variables _RL ; use _d 0 for all numerical constants.
845      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
846    
847    checkpoint46h_post
848    o cleaned up the use of rhoNil and rhoConst.
849      - rhoNil should only appear in the LINEAR equation of state, everywhere
850        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
851        and the dynamical equations are all divided by rhoConst
852    o introduced new parameter rhoConstFresh, a reference density of fresh
853      water, to remove the fresh water flux's dependence on rhoNil. The default
854      value is 999.8 kg/m^3
855    o cleanup up external_forcing.F and external_forcing_surf.F
856      - can now be used by both OCEANIC and OCEANICP
857    checkpoint46h_pre
858    
859     Added code to convert surface volume flux (fresh water) into
860     a mass flux when using P coordinates in the ocean (OCEANICP).
861     Note: It assumes you have set rho0=rhoConst=density of fresh water.
862    
863    checkpoint46g_post
864    o Include a new diagnostic variable phiHydLow for the ocean model
865      - in z-coordinates, it is the bottom pressure anomaly
866      - in p-coordinates, it is the sea surface elevation
867      - in both cases, these variable have global drift, reflecting the mass
868        drift in z-coordinates and the volume drift in p-coordinates
869      - included time averaging for phiHydLow, be aware of the drift!
870    o depth-dependent computation of Bo_surf for pressure coordinates
871      in the ocean (buoyancyRelation='OCEANICP')
872      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
873        Theta, Salinity, and Pressure in the parameter list. This routine is
874        presently contained in find_rho.F. This routine does not give the
875        correct density for 'POLY3', which would be a z-dependent reference
876        density.
877    o cleaned up find_rho
878      - removed obsolete 'eqn' from the parameter list.
879    o added two new verification experiments: gop and goz
880      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
881    checkpoint46g_pre
882    
883    checkpoint46f_post
884    o Enable tangent linear (forward mode) gradient checks:
885      - extended active file handling to g_... files
886      - added TANGENT_SIMULATION to theSimulationMode
887      - extended grdchk package accordingly
888    o added tangent linear setup in verification/carbon/code_ftl
889    o added adjoint setup in verification/front_relax/code_ad
890    
891    checkpoint46e_post
892    o Added new equation of state -> MDJWF
893      - EOS of McDougall et al., 2002, JAOT, submitted
894      - caveat: the equation of state is only valid for a smaller (more
895        realistic?) range of values than JMD95P/Z and UNESCO
896      - added masks to the calculation of pressure in store_pressure
897      - added more check values for density in check_eos (ini_eos.F), some of
898        the old check values are out of the range of the MDJWF-eos, so don't
899        expect perfect matches for those
900    checkpoint46e_pre
901    
902    checkpoint46d_post
903    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
904      'OCEANICP', also initialised field pressure correctly in ini_eos in the
905      case of pressure coordinates. eosType='JMD95Z' in
906      combination with buoyancyRelation='OCEANICP' now causes an error.
907    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
908      in find_alpha/beta.
909    checkpoint46d_pre
910    
911    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
912      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
913    
914    checkpoint46c_post
915    o Changes necessary for ocean in p-coordinates
916     -  Added new buoyancy relation = 'OCEANICP'
917     -  Added new parameters = gravitySign (this used to be contained inside
918        the factor dRdZ which I added when we first switched to R coordinates).
919     X GM/Redi is not compatible (yet)
920     X bottom drag and no-slip need to be debugged.
921    checkpoint46c_pre
922    
923    checkpoint46b_post
924    o Added new equation of state -> JMD95Z and JMD95P
925      - EOS of Jackett and McDougall, 1995, JAOT
926      - moved all EOS parameters into EOS.h
927      - new routines ini_eos.F, store_pressure.F
928    o Added UNESCO EOS, but not recommended because it requires
929      in-situ temperature (see JMD95)
930    o Modified formatting for knudsen2.f in utils/knudsen2 and added
931      unesco.f to be used with POLY3
932    checkpoint46b_pre
933    
934    checkpoint46a_post
935    o Added (atmospheric) pressure loading
936      - new field in FFIELDS.h, etc...
937      - new cpp flag ATMOSPHERIC_LOADING
938    o Changed hFacC to _hFacC in calc_phi_hyd.F
939    o Added SHORTWAVE_HEATING to some files for consistency
940    checkpoint46a_pre
941    
942    checkpoint46
943    further merges from release1_p5
944    o new ctrl package
945      - adopted from ECCO environment to enable optimization
946      - added Eliassen Palm fluxes to controls
947    o added Eliassen Palm flux controls to gradient check package
948    o cost package
949      - Compatible with new ctrl package
950      - added Eliassen Palm cost hooks
951      - modif's of existing cost functions
952    o Adjoint-related bug fixes in kpp:
953      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
954      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
955    o autodiff package
956      - flow directives:
957        + new for S/R do_the_model_io
958        + enhanced for S/R checkpoint
959        + new gmredi.flow
960      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
961        disable adcommon.h/g_common.h by default.
962      - fixed problem for adjoint of global_max
963    o modified verification/carbon/
964    o New setup for adjoint of global_ocean
965    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
966    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
967    o incorporated hooks for sponge layer code (external_forcing.F)
968    
969    checkpoint45d_post
970    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
971    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
972      (affects plume_on_slope "cg2d" output)
973    o add new parameter deltaTfreesurf for free-surface time stepping
974    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
975    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
976    o change phiMin in exp1 (to agree with documentation)
977    o add new flags:
978     - T,S forcing inside/outside Adams-Bashforth
979     - turn off temp,salt advection and/or forcing
980     - for each tracer, define internal flag for multiDimAdvection & A-B
981    o monitor: change definition of KE to check conservation of Energy
982    
983    checkpoint45c_post
984    o Removed f90 comments ("!")
985    o Modified initialisations to enable exf package for MITgcm
986      (without invoking ECCO_PACKAGE).
987    o modifications to gradient check package (Martin Losch)
988      - enable centered differences
989      - modified format of standard output
990    
991    checkpoint45b_post
992    o cleaned exchange calls in cg2d
993    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
994    o included CPP option SINGLE_LAYER_MODE in thermodynamics
995      to configure barotropic setup (Martin Losch)
996    o moved some initialisations within bi,bj loop in dynamics
997      (TAF flow dependency)
998    o in initialise_varia, moved call packages_init_variables
999      before convective_adjustment_init
1000      (corresponding adjustment of TAF tape initialisation).
1001    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1002    
1003    checkpoint45a_post
1004    o compute Rho over the whole domain (extend iMin,jMin indices)
1005    o specific exchange for X-slice domain (case Ny=1)
1006    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1007    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1008    
1009    checkpoint44h_post = checkpoint45
1010    o Fix to restore differentiability:
1011      place at which packages_init_variables is called in
1012      initialise_varia is crucial for reverse control flow.
1013    o modifications in GMRedi to enable stable adjoint
1014      (corresponding modif's in thermodynamics, dynamics)
1015    o added missing hook for sponge layer code in external_forcing
1016    o modified test cost functions
1017    o storing in gad_advection (plus removal of write(0,*)!
1018    o missing headers TR1.h added in convective_adjustment routines
1019    o errorMessageUnit set non-equal zero in eeboot
1020      (conflict on some platforms, e.g. IBM SP3)
1021    o modified carbon verif.
1022    
1023    checkpoint44h_pre
1024    o vertical grid option: allow to put the Interface at the middle between
1025      2 cell-centers ; replace delZ in pkg/kpp by drF.
1026    o GM Advective form: Tracers are advected using the residual transport (=
1027      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1028    
1029    checkpoint44g_post
1030    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1031      results) ; ifdef missing in thermodynamics.F
1032    
1033    checkpoint44f_pre,checkpoint44f_post
1034    o added PTRACERS package
1035      This allows an arbitrary number of passive tracers to be integrated
1036      forward simultaneously with the dynamicaly model.
1037      + Implemented so far:
1038        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1039        - I/O and checkpointing
1040        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1041      + Not implemented so far:
1042        - KPP
1043        - OBCS
1044      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1045        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1046        line in data.pkg.
1047      + This package is disabled by default since it increases storage.
1048    
1049    
1050    o testscript: added -cleanup option
1051    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1052                 b) enable to filter 2D fields.
1053    
1054    checkpoint44e_pre,post
1055    o re-wrote convective adjustment to use pre-calculated weights
1056      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1057      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1058      Original calls to convect() still in place.
1059    
1060    chkpt44d_pre,post
1061    o added missing EXCLUDE_MONITOR flags
1062    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1063      (incompatible typ in MIN/MAX expressions caused problems
1064      on IBM SP3)
1065    o in genmake added variable MAKEDEPEND
1066      plus resetting for case SunOS
1067    o added timer_stats.c routine for IBM SP3
1068    o removed variables in dynamics
1069    !!! I forgot to create tag chkpt44d_pre !!!
1070    !!! But chkpt44d_pre = chkpt44c_post    !!!
1071    
1072    o real fresh water flux implemented with non-linear free-surface.
1073    
1074    chkpt44c_pre,post
1075    o few fix (mask in shap_s2, EmPmR in external_field_load,
1076      USE_NATURAL_BCS in solve_for_P);
1077    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1078    
1079    checkpoint44b_pre/_post
1080    o merge of relevant stuff from the ecco-branch:
1081      - genmake: removed $S64 overwrite for case SunOS
1082      - pkg/exf: update and corrections for field swapping and obcs
1083      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1084                  harmonized between ECCO and MITgcm
1085      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1086                      updated checkpointing_lev... lists for obcs
1087      - model/src: minor changes in forward_step, plot_field
1088                   added directive for divided adjoint in the_main_loop
1089      - pkg/mdsio: added mdsio_gl_slice
1090    
1091    o check parameters & config (chkpt44a_pre,post)
1092    o OBC and NonLin_FrSurf.
1093    
1094    checkpoint44
1095    o fix bug in mom_vi_del2uv
1096    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1097    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1098    o update AIM experiments (NCEP input files)
1099    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1100    o added some stuff for AD
1101    
1102    checkpoint43
1103    o added two new advection tests
1104    o added global 4x4 degree ocean test
1105    o added test of H&S94 with free surface on cube
1106    o some final mods for gradient check, adjoint,...
1107    
1108    checkpoint42
1109      Fixed AD-related problems:
1110    o Store directives up-to-date with re-arranged Adams-Bashforth
1111      (mainly thermodynamics.F)
1112    o New store directives for multi-dim. advection schemes
1113      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1114      * new common block and key passkey
1115      (mainly gad_advection.F)
1116    o Modified store directives for split of dynamics/thermodynamics
1117      for the case ALLOW_KPP
1118    o Cleaned argument list for timestep_tracer.F
1119    
1120    checkpoint41
1121    o re-formatted/added comments in prologues of key subroutines
1122      to work with protex
1123    
1124    checkpoint40
1125    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1126    o added FLT (floats) package from Arne along with demo. experiment
1127    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1128      implementation of forward-in-time forcing terms
1129    o more mods for non-linear free-surface including new variable
1130    o modified multi-dim method to work on cube
1131    o bug fix in KPP (from DM)
1132    
1133    checkpoint40pre9
1134    o added DST advection schemes
1135    o fix MPI bug on SGI's
1136    o modifications for non-linear free-surface
1137    o fixed conditionals for fixed flow/passive tracer only mode
1138    o added tension/strain form of stress tensor
1139    o changes to commenting of arguments for TAF/TAMC
1140    o added/updated many matlab scripts
1141    o added multi-dimensional advection method for tracers
1142      
1143    checkpoint40pre8
1144    o new package rw/
1145      Added method for dumping intermediate local arrays:
1146      mdsio_writetile - same as mdsio_writefield except works from inside
1147                        bi,bj loop
1148      mdsio_writelocal - same as mdsio_writetile except works for local
1149                         arrays
1150      write_local_r? - higher-level wrapper for mdsio_writelocal
1151      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1152      Example given at end of mom_vecinv.F that dumps some local arrays.
1153    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1154      control flux-form versus vector invariant code.
1155      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1156      or genmake -DISABLE ...
1157    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1158      (additional storing is now needed for case vecinv;
1159      currently nothing implemented to switch this storing off
1160      in case fluxform is used since no CPP flag available).
1161    
1162    checkpoint40pre7
1163    o bug fix in dynamics.F
1164      calc_viscosity called before k=1,Nr loop.
1165    o added some #ifdef's ALLOW_PASSIVE_TRACER
1166    o cleaned initialisations in ctrl_map_ini
1167      related to TAF
1168    
1169    checkpoint40pre6
1170    o split dynamics into thermodynamics & dynamics
1171    o corresponding split of calc_diffusivity into
1172      calc_diffusivity, calc_viscosity
1173      (kpp_calc_diff, kpp_calc_visc).
1174    o Added diffkr, kapgm to control variables
1175    o bug fix in gmredi_slope_limit for ldd97
1176    
1177    checkpoint40pre5
1178    o proper initialization of Adams-Bashforth time stepping
1179      + uses forward step for very first step of model (iter=0)
1180    o re-generated *all* output since almost all output is modified by this
1181      change (sorry but we've been putting this one off for about 2 years)
1182      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1183        *not* regenerated since they are already out of date and I don't
1184        want to create the impression that they are suddenly working.
1185    o removed KAP stuff for DEC's
1186    o modified/added many .cvsignore files in */code and */input
1187    o added new expt "solid-body.cs-32x32x1"
1188      + this uses an alternative form of ini_curvilinear_grid.F which
1189        is not necessarily any better than the current one...
1190    
1191    checkpoint40pre4
1192    o added re-initialisations of utrans,vtrans,rtrans in
1193      calc_common_factors which are crucial for TAF.
1194    o extended iMin,jMin range for calc_common_factors,
1195      calc_diffusivity
1196    o added option ALLOW_PASSIVE_TRACER
1197    o a few minor updates and fixes
1198    
1199    checkpoint40pre3
1200    o created calc_gtr1.F for gad package
1201    o split the_main_loop and re-introduced forward_step
1202    o some recomputations of nIter0 for TAMC
1203    
1204    checkpoint40pre2
1205    o Updated to latest branch of AJA, JMC
1206    o Added gradient check package
1207    o Added routines for passive tracer handling
1208    o Added carbon sequestration sensitivity experiment
1209    
1210    checkpoint39
1211     o Modifications and fixes to support TAMC
1212       (mainly missing or wrong directives)
1213     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1214       in addummy_in_stepping
1215     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1216     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1217     o Included following packages:
1218       cal: calendar
1219       exf: external forcing
1220       ecco: essential routines to control use of cal, exf
1221             (NB: this is not the full ECCO environment)
1222     o disabled some packages by default in genmake
1223    
1224    checkpoint38
1225     o see notes_c37_adj.txt
1226     o corrected wrong layer index in external_forcing_t
1227     o replaced the_main_loop/forward_step by the_main_loop
1228     o removed forceoutput from write_state
1229       (replaced criteria for initial/final state)
1230     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1231    
1232    checkpoint37
1233     o mdsio.F routine split and packaged in pkg/mdsio
1234       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1235        used unless genmake -disable=mdsio)
1236     o allow a more precise surface-geopotential gradient for the atmosphere
1237       taking into account the change in space of Alpha (=1/rho) at the surface.
1238     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1239       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1240     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1241       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1242       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1243     o Time-Average diagnostics defined as a pseudo package "timeave".
1244     o pickup files : old pickup (before c35) did not work with new code (c35
1245       and after) unless activating 2 commented lines in initialise-varia.
1246     o Non-Hydrostatic pickup file Pb fixed.
1247     o bug with Rigid-lid version (since c35) fixed.  
1248    
1249    checkpoint36
1250     o implement Crank-Nickelson barotropic time-stepping
1251     o recover Time-Average diagnostics
1252     o fix Pb in checkpoint (PR#19)
1253     o AIM become a standard package ; clean unused CPP_kees
1254    
1255    checkpoint35
1256     o subtantial rewrite of dynamics.f
1257     o allows staggered time-stepping
1258     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1259     o added bottom drag (linear + quadratic)
1260    
1261    checkpoint34
1262     o Modified exchange routines for correct reverse simulation.
1263     o Added verification output to comply with bug fix in impldiff.F
1264       as of c33 (exp2, natl_box).
1265     o Corrected store directives in dynamics.F
1266     o Corrected array boundaries in impldiff.F
1267     o Corrected array dimensions in gmredi.
1268       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1269     o Added routine GLOBAL_SUM_INT to global_sum.F
1270     o Added mdsio_gl.F for ECCO purposes.
1271    
1272    checkpoint33
1273     o Fixed bug in lower BC in impldiff.F
1274     o Fixed confusion about units of forcing arrays in FFIELDS.h
1275       namely Fu,Fv,Qnet,Qsw,EmPmR:
1276       - Removed verification/natl_box/code/external_fields_scale.F
1277         (did not differ from that in model/src)
1278       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1279         (see FFIELDS.h for description)
1280       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1281         kpp_calc.F and kpp_transport_t.F
1282       - Removed model/src/external_fields_scale.F and calls to it
1283       - verification/natl_box uses flux data with "atmospheric" sign so
1284         a special version of external_fields_load.F is used to
1285         change the data as it's read in. This way, the arrays
1286         have the right units and signs at all times tha a user could
1287         possibly use them.
1288     o Corrected genmake to delete a temporary file during configuration
1289    
1290    checkpoint32
1291     o Scaling of forcing fields moved from external_forcing.F to
1292       external_fields_scale.F, called directly after loading fields.
1293     o Surface relaxation terms added to surface tendency fields in
1294       extra subroutine.
1295     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1296       fields.
1297     o Changes in GMRedi to comply with packaging structure.
1298     o Modifications and bug fixes in KPP package.
1299     o Verification experiment for KPP added (verification/nat_box/)
1300    
1301    checkpoint31
1302     o Packages interface brought in line with defined standard
1303       -> new routines packages_...F
1304       -> changes in initialise_fixed.F, initialise_varia.F
1305       -> enables initialisation interface for ECCO package
1306     o Rescaling of external forcing fields immediately after read
1307       (removed from external_forcing.F)
1308       -> new: surface_fields_scale.F
1309       -> affects ini_foorcing.F, external_fields_load.F
1310     o Computation of surface tendencies before tendency updates.
1311       -> new: external_forcing_surf.F
1312     o Change of variable names useGMRedi, useKPP, useECCO
1313     o Further changes in dynamics.F, impldiff.F for TAMC
1314     o Tested for experiments 0, 2, 4.
1315       - not yet tested for GMRedi.
1316       - not yet tested for KPP.
1317    
1318    checkpoint30
1319     o Updates for OBCs
1320     o New experiment for test OBCs (internal_wave)
1321     o New output.txt in verification/exp4/results/
1322     o Updates for KPP: calculation of viscosity corrected, new variables
1323       kpp_dumpFreq and kpp_taveFreq
1324     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1325       and entry for T90 in genmake
1326    
1327    checkpoint29
1328     o packaged KPP and GM/Redi
1329    
1330    checkpoint28
1331     o Corrected initialization of hFacMin for difference vertical coordinates
1332     o Modified calculation of partial cell thickness to more robust algorithm
1333     o config_summary.F: replaced write_1D_... by write_0D_...
1334       read_write.F: added subroutines write_0D_...
1335     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1336       included some initialisations required for TAMC.
1337     o routine calc_isoslopes: modified sqrt computation to make it
1338       differentiable for zero argument.
1339     o routines dynamics, impldiff:
1340       included store directives and tape key computations required for TAMC.
1341     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1342    
1343    checkpoint27
1344     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1345       formulation works properly with variable resolution.
1346     o restructured the calling tree between the_model_main() and dynamics()
1347     o split initialise() into initialise_fixed() and initialise_varia()
1348     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1349       in new routine ini_psurf()
1350    
1351    checkpoint26
1352     o moved some #ifdef in optional routines to encompass everything
1353       except the argument declarations. This was using up some memory.
1354     o fixed macros like _ADT to work with both versions of Linux cpp
1355     o cleaned up some unused and uninitialized variables
1356       (helps when debugging with strict compile options)
1357     o split up CPP_EEOPTIONS.h into options and macros
1358       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1359     o patch for 2 processor JAM mode
1360    
1361    checkpoint25
1362     o updates for OBCs and NH
1363     o dramatically reduced memory usage
1364     o added "JAM" routines for use on Artic network
1365     o parameterization of convection by implicit vertical diffusion
1366     o added a diagnostic of convective index
1367     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1368       (this is was partly for OBCs and NH but also in anticipation of
1369        an explicit free-surface option)
1370     o initial state input files for U and V
1371    
1372    checkpoint24
1373     o Removed some spurious "REAL"s
1374     o Updated KPP to latest version from JPL
1375     o Added a COS(latitude) in horizontal viscosity
1376    
1377    checkpoint23
1378     o Added del^4 diffusion for salt and temperature
1379     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1380    
1381    checkpoint22
1382     o Made many small changes: implicit none, format(i5), etc...
1383     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1384    
1385    checkpoint21
1386     o Introduced new I/O package that supports direct-access records (mdsio.F)
1387     o Split-up mid-level I/O routines
1388     o Updated input data for experiments 0,1,2,4 and 5
1389     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1390    
1391    checkpoint20
1392     o Tidied up open-boundaries some more
1393     o Added non-hydrostatic code
1394     o Fixed some input data
1395     o Modified MPI start-up to work in "coupled" context.
1396    
1397    checkpoint19
1398     o Tidied up directory structure for verification experiments.
1399     o Added new code for open boundaries.
1400     o Corrected advective terms near boundaries.
1401     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1402     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1403     o Split default parameters out of ini_parms.F into set_defaults.F.
1404    
1405    checkpoint18
1406     o Further changes for optional code generation with
1407       CPP - ugh!
1408    
1409    checkpoint17
1410     o Beginning to incorporating modularity
1411       for supporting atmos. and ocean configs.
1412     o Small changes for TAMC complinace
1413     o New ultra simple test case. Barotropic box
1414       configuration "exp0".
1415    
1416    checkpoint16
1417     o Minor changes to exchange routines to support
1418       accumulation in reverse mode. Adjoint of an
1419       assignment is an addition.
1420     o Changes to support compilation by TAMC (LR(1)
1421       syntax) and by g77 under Linux ( 72 character
1422       limit ).
1423    
1424  checkpoint15  checkpoint15
1425   Rewrote exchange routines to allow   Rewrote exchange routines to allow
1426   o General tile <-> tile connectivity.   o General tile <-> tile connectivity.

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