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revision 1.13 by cnh, Wed Sep 9 15:24:19 1998 UTC revision 1.220 by jmc, Sun Dec 7 20:37:32 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    
8    checkpoint52d_pre
9    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
10    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
11    
12    checkpoint52c_post
13    o Fixing OPTIONS files for use of exf:
14      - ALLOW_ECCO not needed
15      - ECCO_CPPOPTIONS.h should not be included from
16        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
17        as has been the case in the past
18      - All cal/exf related options are currently set in
19        single header file. Should remain so until we
20        agree on a consistent new policy.
21    o Removed all CPP options for cal package.
22      cal has no more CPP options.
23    o modified STOREs in GAD_ADVECTION
24    o corrected key comp. for passkey
25    
26    checkpoint52b_post
27    o new version: "thsice" of thermodynamic sea-ice pkg:
28     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
29     - modify fluxes but do not change theta directly;
30     - light cleaning of bulk_force pkg (still needed with thsice).
31     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
32       + output_thsice.txt to test thsice & bulk_force pkgs.
33    o put back grid & coriolis monitor output.
34    checkpoint52b_pre
35    
36    o call "do_the_model_io" at the beginning (=> dump initial state)
37    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
38    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
39      (need info on NUMBER_OF_PTRACERS)
40    o missing PTRACERS headers in some routines
41    o default tamc.h in pkg/autodiff supposed to crash
42      to ensure proper customization
43    
44    checkpoint52a_post
45    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
46      - moved surfaceTendencyTice from pkg/seaice to main code
47      - subroutine FREEZE_SURFACE now limits only surface temperature
48        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
49        => new output.txt for global_ocean.cs32x15 & global_with_exf
50      - keep the old version of FREEZE for backward compatibility;
51        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
52      - corresponding modifs for TAF directives
53    o added surface flux output variables to TIMEAVE_STATVARS
54    o time-averaged output for pkg/ptracers
55    o fix problem with ECCO-related divided adjoint
56      snapshot file was missing some ad-variables,
57      but no warning issued by TAF
58    
59    checkpoint52a_pre
60    o some bug fixes for #undef REAL4_IS_SLOW
61    
62    checkpoint52 = ecco_c52_e35
63    o after testing adjoints of checkpoint51u_post
64    
65    checkpoint51u_post
66    o this is the post-merge tag of the ecco-branch
67      (needs another clean checkout and re-testing)
68    o various natl_box_adjoint configs and results
69      but no input fields
70    o obcs adjoint not yet merged!
71    o adding ECCO global 1x1 and 2x2 degree configs
72    o updated/extended some store directives for seaice
73    o pkg/ecco now containes ecco-specific part of cost function
74    o top level routines the_main_loop, forward_step
75      supersede those in model/src/
76      previous input data.cost now in data.ecco
77      (new namelist ecco_cost_nml)
78    o in ctrl/ cleaned some cross-dependencies and updated CPP options
79    
80    checkpoint51t_post
81    o this is the pre-merge tag of the ecco-branch
82    
83    checkpoint51s_post
84    o cleanup: removed various obsolete #define-s
85    o pkg/grdchk
86      - renamed 'ph-grd 3' to 'grad-res'
87      - merged from ecco-branch
88        (remaining bug fixes for obcs gradient checks)
89      - additional high-precision output for testreport
90        (grep for 'precision_grdchk_result')
91    
92    checkpoint51r_post
93    o cleaned up or removed CPP_OPTIONS.h files
94    o updated results for some of the tests to reflect the new
95      optfiles (-ieee: -O0 instead of -O3)
96    
97    checkpoint51q_post
98    o cd_code:
99      - moved cd_scheme.F -> cd_code_scheme.F
100      - separate read_checkpoint from cd_code_ini_vars.F
101      - separated cd_code part from write_checkpoint
102      - updated AD_SOURCE, generated .flow
103      - added CD_CODE_VARS.h to the_main_loop
104      - Moving cd_code specific store dir.s to pkg/cd_code
105    o ctrl package totally restructured
106      - pack/unpack now optional and decoupled from
107        xx_/adxx_ I/O
108      - ctrl_pack/unpack cleaned
109        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
110      - confined inclusion of AD_CONFIG.h to where necessary.
111    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
112    
113    checkpoint51p_post
114    o create initial cd_code package
115      - WARNING: the initialization of fields within packages
116        is broken because INI_FIELDS (where READ_CHECKPOINT is
117        called) is called *before* PACKAGES_INIT_VARIABLES.
118        This seems to be backwards since
119        1) its important to initially zero the entire field including
120           the "halo" region
121        2) zeroing needs to be done *before* reading pickup info
122           and the pickup call might or might not happen in any
123           particular run
124      - this needs an overhaul for R2
125    o cleanup verification/*/code/GMREDI_OPTIONS.h
126    o cleanup testreport
127    
128    checkpoint51o_post
129    o bringing AD-related verif's up to date with genmake2
130      - carbon/
131      - global_ocean.90x40x15/
132      - hs.94.1x64x5/
133      - (front_relax/ )
134    o (more) consistent directory structure for AD-related verif.'s
135    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
136    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
137    o bug fix in find_alpha.F for MDJWF:
138      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
139        change rho -> rho-rhoConst
140      - replace call find_rho to find_rhonum
141    o initialisation of rFlx extended to full array (required by TAF)
142      and shifted to thermodynamics
143    o removed PTRACERS.h in ptracers routine
144    o added surfacetendencyPtr to S/R parameter list pracers_forcing
145    o Correcting initialisations for fVerU, fVerV.
146    o helping TAF to recognize dependency on kUp for
147      fVerU, fVerV
148    o Replacing delZ by delR in pkg/ctrl/
149    checkpoint51o_pre
150    
151    o undid all of cp51 pending some cleanups and discussion
152    o added the [#include "AD_CONFIG.h"] statement to all files that need
153       it for adjoint/tl #defines
154     o re-worked the build logic in genmake2 to support AD_CONFIG.h
155     o removed tools/genmake since it no longer works
156    
157    checkpoint51n_post
158    o modifications to make FREEZE flux visible to pkg/kpp
159      - moved surfaceTendencyTice from pkg/seaice to main code
160      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
161      - subroutine FREEZE now limits only surface temperature
162        (this means new output.txt for global_ocean.90x40x15,
163         global_ocean.cs32x15, and global_with_exf)
164    o added surface flux output variables to TIMEAVE_STATVARS
165    
166    checkpoint51n_pre
167    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
168    o added [#include "AD_CONFIG.h"] to all files that use the following
169      defines:
170      - ALLOW_ADJOINT_RUN
171      - ALLOW_TANGENTLINEAR_RUN
172      - ALLOW_ECCO_OPTIMIZATION
173    
174    checkpoint51m_post
175    o incorporating changes to get TAMC/TAF working in genmake2
176      - added new TAMC/TAF targets to the Makefile
177      - various cleanups related to package handling
178      - these changes should have no impact on the forward model
179    
180    checkpoint51l_post
181    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
182     - faster algorithm for cal_addtime.F
183     - higher precision arithmetic, where needed
184     - pkg/exf *startdate variables changed from calendar date to
185       model integration time
186    
187    checkpoint51l_pre
188    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
189    o enable to apply restoring on S & T only in a latitude band.
190    o update output (external_forcing_surf modif. change truncation errors)
191       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
192    
193    checkpoint51k_post
194    o change default to: useNHMTerms=.FALSE.
195     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
196       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
197     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
198        exp1, ideal_2D_oce
199     - change data file of oceanic exp (leave the results unchanged for now)
200       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
201    o set gravitySign automatically according to the vertical coordinate used
202      (and change sign: back to "logical" value: +1 when R increases downward)
203    o added an include barrier to the default CPP_OPTIONS.h and
204      removed the #include "PACKAGES_CONFIG.h" from it
205    o fix a bug in mom_fluxform (from chk51j_post)
206    
207    checkpoint51j_post
208    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
209    o adjusted some flow directives (dynamics, thermodynamics)
210    o added cubed-sphere case to test cost function
211    o heckpoint_lev?_directives.h now include
212      pkg-specific directives, whenever those are enabled.
213    o Moving pkg-specific flow directives to corresponding pkg
214      Moving pkg-specific differentiation list to corresponding pkg
215      Moving pkg-specific checkpoint-lev storing to corresponding pkg
216      ---> conventions are
217           - pkg_ad.flow
218           - pkg_ad_diff.list
219           - pkg_ad_check_lev?_dir.h
220    
221    checkpoint51i_post
222    o merge of the branch-genmake2
223      - knowingly breaks the older genmake
224      - automatic generation of all ALLOW_${PKG_NAME} defines
225      - new testreport supersedes older testscript
226    o large number of package inclusion and header cleanups
227    checkpoint51i_pre
228    
229    o new output for adjoin of global ocean vector invariant
230    o fix for checkpoint of thermodynamic seaice and bulk_force
231    o Steph gchem various cleanups
232    
233    checkpoint 51h_pre
234    o fixed some single quotes
235    o modify gchem pkg to be more versatile
236    o modifications to clean up dic pkg
237    o add pkg/cfc
238    
239    checkpoint51g_post
240    o provide links for ARPACK and ADM*TLM
241    o start removing verification/vero/
242    o update AD-related stuff
243      (in particular some IF-statements in model/src/ routines)
244    o adding to verification/global_ocean.90x40x15/ adjoint of
245      vector invariant setup
246    
247    checkpoint51f_post
248    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
249    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
250      of tracer Green's fucntions for ocean inversion project.
251    
252    checkpoint51f_pre
253    o Added on-the-fly spatial interpolation capability
254        "USE_EXF_INTERPOLATION" to pkg/exf.
255      - This is a temporary Cartesian-grid hack until
256        the super-duper ESMF coupler becomes available.
257      - See verification/global_with_exf/README for usage example.
258      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
259        flags and modified pkg/seaice accordingly.
260    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
261        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
262        non-local transport term.
263    
264    checkpoint51e_post
265    o pkg/mom_vecinv:
266      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
267      - add time-ave diagnostic of vorticity advection.
268    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
269    o atmospheric geopotential: - include water vapor effect;
270                                - use p^kappa in p* scaling.
271    o land pkg: read initial state from files.
272    o AIM : add stratospheric drag in the upper level
273    
274    checkpoint51d_post
275    o change function ILNBLNK (=> last non-blank char.) to return zero
276      (instead of the string length) when the string. char is empty
277    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
278    o modif's to restore TAMC compatibility
279      - avoid "_d" constructs in PARAMETER declarations
280      - avoid interrupting lines by comment lines
281    o Use cluster local disks for purely local I/O
282      vs. globally visible disks needed for ctrl stuff
283      (merged from ecco-branch)
284      - new active_file_loc... and mdsio_..._loc routines
285      - affected packages: autodiff, ctrl, grdchk, mdsio
286    
287    checkpoint51c_post
288    o introducing integer flag debugLevel
289      - debLevZero: suppress all output
290      - debLevA: standard
291      - debLevB: equivalent to current debugMode=.TRUE.
292    o introducing pathname variable mdsioLocalDir for mdsio
293      that can be specified at runtime
294      (relevant for cluster I/O to local disk)
295    `
296    >>>checkpoint51b_post
297    adjoint of ptracers
298    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
299    o extended state in checkpoint_lev?, etc.
300    o alternative ctrl/cost with tr1 or ptracer
301    o new comlev1_bibj_ptracers
302    o new ptracers.flow
303    o made ptracers_forcing same as external_forcing_s
304    o added verification for adjoint with ptracers
305      - adm. grdchk fail so far
306      - tlm. grdchk OK
307      - checked tapelev/comlev recomputations: OK
308    <<<checkpoint51b_pre
309    
310    checkpoint51a_post
311    o added code for biogeochemistry package
312      - new pkgs: dic, gchem
313      - new subroutine in ptracers
314    o modify code for biogeo packages
315      - in model/src and pkg/ptracers
316    
317    checkpoint51
318    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
319      - autodiff, ctrl, exf, grdchk, seaice
320      kept separate packages
321      - cost, ecco, obcs
322    o updating verification/internal_wave, verification/lab_sea
323      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
324    
325    checkpoint50i_post
326    o Preparing next differentiable checkpoint and sync
327      of MAIN vs. ecco-branch
328      - 1st step: this one is differentiable
329      - 2nd step: next(! not this) checkpoint will have updated packages
330                  from ecco-branch)
331    
332    checkpoint50h_post
333    o new package "land": provide surface BC for AIM.
334    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
335    o AIM: use true log-P extrapolation for near surface temp (= as in
336        F.Molteni paper) ; update aim.5l_cs output.
337    o New variable in PARM03 for more flexible pickups
338    o somewhat cleaned package initialisation sequence for
339      ctrl/ cost/ ecco/ in packages_... routines
340    
341    checkpoint50g_post
342    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
343      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
344      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
345        made the default because of faster convergence than ADI
346    
347    checkpoint50f_post
348    o exf totally restructured
349      - replaced all exf_set_ routines by one generic exf_set_gen.F
350        and made sure it's still differentiable
351      - split exf_getffields.F into new exf_bulkformulae.F
352      - exf_inscal_/exf_outscal_ suffixes consistent with field names
353      - updated adjoint/makefile and relevant verif. accordingly
354    
355    checkpoint50f_pre
356     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
357          + change Evap over land. (update aim.5l_cs output)
358     o added missing .cvsignores and made uniform across expts
359     o changed configuration of tidal_basin_2d expt
360     o added pkg/debug functions for tracing code in fatal crashes
361     o tidied pkg/monitor to use MONITOR_OPTIONS.h
362     o new fn in pkg/monitor to stop model if solution grows too big
363     o removed lots of single quotes from comments
364    
365    checkpoint50e_post
366    o make KPP work with PTRACERS
367     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
368       nearly a copy of kpp_transport_s
369     - there is no analogue to SurfaceTendencyS, so I have to use
370       gPtr(of the surface layer) instead
371    o add a new platform SunFire+mpi (SunFire 15000) to genmake
372    checkpoint50e_pre
373    
374    checkpoint50d_post
375    o change kpp output from multiple-record state files to single-record state
376      files analogous to write_state.F
377    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
378      analogous to the cg2d-related output.
379    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
380      so that writing to internal file fn (with length 512) fails.
381    checkpoint50d_pre
382    
383    checkpoint50c_post
384    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
385    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
386    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
387    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
388    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
389    
390    checkpoint50c_pre
391    Merging from release1_p13:
392    o bug fix for pkg/seaice dynamic solver
393    o Added SEAICE_initialHEFF to pkg/seaice
394    
395    checkpoint50b_post
396    o store u*,v* in gU,V instead of in guNm1,gvNm1
397    o in order to put the momForcing out of the Adams-Bashforth:
398      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
399      to timestep.F
400    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
401    o re-generate output for highly sensitive test-exp:
402       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
403    
404    checkpoint50b_pre
405    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
406    o corrected CPP option mismatch in exf_Bulk... functions for case
407      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
408    
409    checkpoint50a_post
410    o Bug fix for merging between c50 and KPP.
411      ikey was passed from thermodynamics to kpp_calc via
412      common block rather than being recomputed in kpp_calc,
413      in contradiction with new key itdkey.
414      New key ikppkey created, and tamc.h headers updated.
415    
416    checkpoint50
417    - 2nd step of merge with ecco-branch:
418      merge changes in ecco-branch back into main trunk
419    - bug fix in find_alpha
420    - more storing in gmredi_calc_tensor.F, kpp_routines.F
421    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
422    - merged some sliced AD support routines
423    
424    checkpoint49
425    merged from ecco-branch:
426    o exf:
427      - Enable initialisation of forcing fields to constant
428        (runtime) values.
429      - in exf_getffields.F
430        Reduce i-/j-loop to interior domain, discarding overlaps.
431        That also fixes wrong TAF-key computations for key_1, key_2
432        with bulf formulae.
433      - exf_init.F modify #ifdef for exf_init_evap
434      - exf_getffieldrec.F, ctrl_getrec.F
435        The following INT-usages are not safe:
436          fldsecs  = int(fldsecs/fldperiod)*fldperiod
437          fldcount = int(fldsecs/fldperiod) + 1
438        and were modified.
439    o autodiff: checkpoint_lev...
440      - updated storing for bulk formulae (some arrays were missing)
441      - added state for seaice package
442      - synchronized with main branch
443    o DIVA:
444      Modif.s in
445      - the_main_loop.F
446      - the_model_main.F
447      and added cost_final_restore.F cost_final_store.F
448      o With these changes, it is possible to fully separate
449        the first forward run to compute the cost function (mdthe_main_loop)
450        and adjoint runs over individual DIVA intervals (adthe_main_loop)
451        into separate model executions.
452        This enables better tuning of DIVA to given queue sizes.
453      o Loss of cost function value in consecutive DIVA runs is
454        fixed by storing to 'costfinal' file.
455      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
456        beginning/end of adjoint integration is accounted for.
457      The current changes apply to TAF-1.4.26.
458      TAF has one remaining bug, requiring one manual change
459      (see MITgcm manual).
460    o cal: synchronized between MAIN and ecco-branch
461    
462    checkpoint48i_post
463    o Changes to restore differentiability of code w.r.t. previous tag
464      (mostly adding new routines to make list and replacing
465      pressure by totPhiHyd).
466    o Updated and merged grdchk package
467      - has both ADM and TLM checks
468      - works for single- and multi-proc.
469      - output cleaned
470      - worked successfully for parallel DIVA
471    o genmake:
472      - Adding -platform=SP4
473      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
474    o Modif. for DIVA:
475      ctrl_unpack should not be called in intermediate DIVA interval.
476      (similar thing would apply for active files such as
477      tbar, sbar, psbar, which should not be reinitialised;
478      only relevant for ecco-branch)
479    
480    checkpoint48h_post
481    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
482    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
483    o Added SEAICE_initialHEFF to pkg/seaice
484    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
485    
486    checkpoint48g_post
487    --- EOS:
488    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
489      store total Potential in totPhyHyd for diagnostics & EOS.
490    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
491    --- Pressure/geopotential gradient:
492    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
493    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
494      ( changes results of global_ocean_pressure )
495    o NLFS + z-coord.: add eta*Rho' contribution.
496    o accurate phiHyd when using interface-W at the middle between 2 centers
497     ( changes results of ideal_2D_oce )
498    o includes r* 2nd term in potential gradient.
499    
500    checkpoint48f_post
501    Merging from release1_p12:
502    o Modifications for using pkg/exf with pkg/seaice
503      - improved description of the various forcing configurations
504      - added basic radiation bulk formulae to pkg/exf
505      - units/sign fix for evap computation in exf_getffields.F
506      - updated verification/global_with_exf/results/output.txt
507    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
508      (SBO) core products, including oceanic mass, center-of-mass,
509      angular, and bottom pressure (see pkg/sbo/README.sbo).
510    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
511      to avoid negative values in shallow regions.
512      - updated verification/natl_box/results/output.txt
513      - updated verification/lab_sea/results/output.txt
514    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
515    o Added useSingleCpuIO option (see PARAMS.h).
516    o Updated useSingleCpuIO option in mdsio_writefield.F to
517      work with multi-field files, e.g., for single-file pickup.
518    o pkg/seaice:
519      - bug fix in growth.F: QNET for no shortwave case
520      - added HeffFile for specifying initial sea-ice thickness
521      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
522    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
523      kpp_transport_t.F, forward_step.F, and the_main_loop.F
524    o pkg/seaice:
525      - adjoint-friendly modifications
526      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
527    
528    checkpoint48e_post
529    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
530    o dynamics: change definition of computational domain & adapt mom_fluxform
531      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
532    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
533        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
534        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
535        global_ocean.90x40x15 global_with_exf global_ocean_pressure
536        inverted_barometer solid-body.cs-32x32x1
537      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
538    
539    checkpoint48d_post
540    o in preparation for r*:
541     a) use pre-computed gradient of hydrostatic potential:
542        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
543     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
544        => affects results of glob_oce_pressure (different truncation error)  
545      update output.txt of ideal_2D_oce & global_ocean_pressure
546    
547    checkpoint48d_pre
548    o in preparation for r*:
549      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
550      pass the 2 comp. of the grad. as arguments to momentum S/R.
551      but for the moment, only used if it does not change the results.
552    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
553    
554    checkpoint48c_post
555    Modifications in treatment of initial flux forcing controls
556    to avoid extra storing of flux fields.
557    
558    checkpoint48c_pre
559    o Added tidal_basin_2d experiment (currently 1D!)
560    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
561    
562    checkpoint48b_post
563    o r* coordinate added in #ifdef NONLIN_FRSURF block.
564     (modification to pressure gradient not yet implemented)
565    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
566      (for U & V) that are used for vertical advection of momentum.
567    
568    checkpoint48a_post
569    o In preparation for r*, use temp. array to compute vertical transport
570       in flux-form momentum pkg. => change results of few test-exp.
571      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
572                        lab_sea, natl_box & plume_on_slope
573    
574    checkpoint48
575    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
576    
577    checkpoint47j_post
578    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
579    o moved adexch from forward_step to addummy_in_stepping
580    o added exch in ctrl_map_...
581    o aveFreq.=0. at end of cost_final to avoid overwrite in
582      reverse checkpointing loop
583    o Yet more changes in gmredi:
584      * adgmredi_calc_tensor
585        avoiding all recomputation of gmredi_slope_limit
586      * adgmredi_x/y/rtransport
587        added flag for excessive storing to avoid recomp. of
588        u/v/rtans, dTdx/y/z
589        -> this is not really necessary and very memory-consuming
590      * adgmredi_slope_psi:
591        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
592      * gmredi_slope_limit
593        re-activated full calculation of taperfct for case 'ac02'
594    o updating verification/ adjoints of carbon, global_ocean.90x40x15
595    
596    checkpoint47i_post
597    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
598    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
599      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
600    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
601    o gmredi: fix few bugs.
602    
603    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
604    This will be a good checkpoint to plug into the ecco-branch.
605    o few modif.'s to get latest version adjointed
606      (mainly kick out code in ini_linear_phisurf)
607    o modif's to run adjoint with exactConserv
608    o case GM_BOLUS_ADVEC should be cleaned
609      S/R gmredi_slope_psi should be cleaned
610    o verification/carbon now has exactConserv=.TRUE.
611    
612    checkpoint47g_post
613    o time-average AIM output: becomes independent from statvars time-average
614      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
615    o After TAF bug fix:
616      Tested adjoint of gmredi package.
617      Tests were done with checkpoint47 rather than with latest
618      checkpoint47f_post since the latter is broken for the adjoint
619      verification/carbon/ contains both ADM and TLM gradient checks.
620    Here they are, before they get changed/lost/stolen.
621    Mostly modif.'s to fix numerical sensitivities.
622    Gradient checks OK for
623    - GM_taper_scheme:
624      * clipping
625      * ac02
626      * linear
627      * glw91
628      * dm95
629      * ldd97
630    - GMREDI_OPTIONS:
631      * GM_VISBECK_VARIABLE_K
632      * GM_NON_UNITY_DIAGONAL
633      * GM_EXTRA_DIAGONAL
634      * GM_BOLUS_ADVEC
635    in conjunction with data.gmredi parameters to be checked in
636    in a few minutes under verification/carbon/code/
637    
638    checkpoint47f_post
639    Merging from release1_p10:
640    o modifications for using pkg/exf with pkg/seaice
641      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
642        and SEAICE_EXTERNAL_FLUXES
643      - pkg/exf CPP options EXF_READ_EVAP and
644        EXF_NO_BULK_COMPUTATIONS
645      - usage examples are Experiments 8 and 9 in
646        verification/lab_sea/README
647      - verification/lab_sea default experiment now uses
648        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
649    
650    checkpoint47e_post
651    o created a tag prior to creating a branch
652    
653    checkpoint47d_post
654    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
655      at the bottom boundary had an erroneous half slip boundary condition
656    o added bottom drag and no slip boundary condition capabilities to
657      oceanic pressure coordinates code
658    o added new verification experiment global_ocean_pressure, this experiment is
659      also described in the tutorial section of the manual
660    checkpoint47d_pre
661    
662    checkpoint47c_post
663    o Added a verification experiment for a global cubed-sphere ocean run
664      -  verification/global_ocean.cubed32x32x30
665      -  uses pkg/therm_seaice and pkg/bulk_forcing
666    
667    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
668    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
669      when using P-coordinate; only implemented for atmospheric config.
670    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
671      NOTES: requires option NONLIN_FRSURF to be "#define".
672    o update advect_xz/results/output.txt (left from checkpoint44g_post)
673    
674    checkpoint47b_post
675    Merging from release1_p9:
676    o pkg/seaice
677      - removed GOTO's and added taf directives
678      - double precision constants to reduce the g77 (Linux)
679        to F77 (SGI) differences reported in release1_p8
680    o tools/genmake
681      - added SGI options
682    o verification/testscript
683      - updated to that of checkpoint47a_post
684    o verification/global_ocean.90x40x15/input/eedata
685      - modified for SGI f77 compatibility
686    o verification/lab_sea
687      - added description of sea-ice model
688      - added missing matlab routines
689      - added test of thermodynamics parallelization
690    
691    checkpoint47a_post
692    o new pkg: aim_v23
693     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
694       for now, keep the same surface forcing as before.
695     - Part-Cell implemented into AIM; check that Heat & Water are conserved
696     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
697     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
698    o add diagnostic of surface correction term in monitor output
699    
700    o bulk_force and therm_seaice
701    - Two packages:  bulk_force (Bulk forcing)
702      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
703    - Earlier integration from Stephaine Dutkiewicz
704      and Patrick Heimbach.
705    - Two ifdef statements for compile time,
706       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
707    
708    checkpoint47
709    differentiable version of checkpoint46n_post
710    o bug fix in quasihydrostaticterms
711    o * "clean" adjoint code (in terms of extensive recomputations)
712        can now be obtained for all GMREDI options (i.e. for
713        - GM_VISBECK_VARIABLE_K
714        - GM_NON_UNITY_DIAGONAL
715        - GM_EXTRA_DIAGONAL
716        - GM_BOLUS_ADVEC )
717      * However, wrong gradient check problem remains unsolved.
718      * New CPP options have been introduced for different
719        tapering schemes
720    o external_fields_load now part of differentiation list
721    o pressure needs multiple storing;
722      would be nice to have store_pressure at beginning or
723      end of forward_step, e.g. by having phiHyd global (5-dim.)
724      (NB: pressure is needed for certain cases in find_rho,
725      which is also invoked through convective_adjustment).
726    o recomputations in find_rho for cases
727     'JMD95'/'UNESCO' or 'MDJWF' are OK.
728    o #define ATMOSPHERIC_LOADING should be differentiable
729    o ini_forcing shifted to begining of initialise_varia
730    o Incorporating QNVS line search routines into MITgcm
731      (this is separate code, and therefore not under pkg)
732      lsopt/, optim/
733    o Updated verification/carbon/
734      - #define GM_VISBECK_VARIABLE_K
735      - GM_taper_scheme    = 'ldd97'    
736    
737    checkpoint46n_post
738    Merging from release1_p8:
739    o verification/natl_box:
740      updating new external_fields_load routine
741    o New package: pkg/seaice
742      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
743      The sea-ice code is based on Hibler (1979-1980).
744      Two sea-ice dynamic solvers, ADI and LSR, are included.
745      In addition to computing prognostic sea-ice variables and diagnosing
746      the forcing/external data fields that drive the ocean model,
747      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
748      The implied surface heat flux is then stored in variable
749      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
750      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
751      non-local transport term.  Because this call precedes model
752      thermodynamics, temperature under sea-ice may not be "exactly" at
753      the freezing point by the time theta is dumped or time-averaged.
754      N.B.: fairly large differences in accuracy occur across
755            different platforms/compilers; comparison between
756            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
757            generated output gives:
758       T           S           U           V
759      C D M    c        m  s        m  s        m  s        m  s
760      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
761      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
762      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
763    
764      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
765    o GAD:
766      - generated new common blocks to account for call of
767        same gad routines with differing traceridentities
768        (needed to modify tracerIdentity indices in GAD.h)
769      - generated separate common blocks for case useCubedSphereExchange
770        (Department of Futurology)
771      - parameter lists to gmredi_?transport: added tracerIdentity
772      - added new key indices to tamc.h
773    o external_fields_load:
774      - added this routine to TAF list
775      - needed to make some common blocks global and additional storing
776        along the same lines as exf package (checkpoint_lev?_directives.h)
777    o exf:
778      updated external forcing package
779      - bug fixes carried over from ecco-branch
780        (missing OBCS_OPTIONS.h in two routines)
781      - enable easy to use "no forcing".
782      - added exf I/O for atmospheric loading
783      - added exf I/O for runoff data
784      - transfered scaling between exf <-> MITgcm to exf namelist
785    o Adding new verification experiment global_with_exf.
786      This verification experiment is almost identical to the
787      global_ocean.90x40x15 experiment, except that it uses
788      the exf (and cal) package instead of the
789      external_fields_load routine (cf README file).
790    
791    checkpoint46m_post
792    o modified testscript to return -- when there are no lines of "%MON" output
793    o added new flag "quasiHydrostatic" for QH mode
794      and new routine quasihydrostaticterms()
795    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
796      New routine: mom_u_coriolis_nh()
797    o fixed sign of non-hydrostatic metric terms in u and v equations.
798      Depend on correct sign of gravitySign.
799    o added work.pc* to .cvsignore in aim directories using ifc
800    o introduced flag for controllin non-hydrostatic metric terms
801    o removed gravitySign from PARM04
802    o switched to g77/ifc from pgf77 in aim experiments
803    
804    checkpoint46l_post
805    o made convective adjustment work with pressure coordinates:
806     - changed the direction of k-loop in convective_adjustment.F for the
807       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
808     - adjusted the reference pressure k-index in convective_adjustment.F
809     - adjusted the convection condition in convect.F (in analogy to
810       calc_ivdc.F)
811     - convective_adjustment no longer computes anything on the halos
812     - removed the warnings about negative salinity from find_rho.F and
813       find_alpha.F; instead the new routine look_for_neg_salinity, called
814       at the beginning of find_rho, find_alpha, and find_beta, does a
815       check of the entire slice, if CPP-option
816       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
817    checkpoint46l_pre
818    
819    checkpoint46k_post
820    o fixed the verification/global_ocean.90x40x15 experiment:
821     - new bathymetry (the world according to A., JMC, and M.)
822     - new initial fields and forcing fields (*.bin files)
823     - new POLY3.COEFFS (for the next release one should switch to a full
824       equation of state: JMD95P or MDJWF)
825     - fixed several errors and redundancies in the data file
826     - experiment uses looped cells
827     - added matlab directory with diagnostic scripts for plotting of output
828    
829    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
830     - read AIM physics parameters from a file (data.aimphys)
831     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
832    
833    checkpoint46j_post
834    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
835    o move wVel computation at the end of the time step, in S/R integr_continuity
836    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
837    o update timeave pkg for wVel diagnostic.
838    checkpoint46j_pre
839    
840    checkpoint46i_post
841    o Clean up AIM package (and keep the results unchanged):
842      include CPP_OPTION and use IMPLICT NONE in all routines ;
843      declare all the variables _RL ; use _d 0 for all numerical constants.
844      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
845    
846    checkpoint46h_post
847    o cleaned up the use of rhoNil and rhoConst.
848      - rhoNil should only appear in the LINEAR equation of state, everywhere
849        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
850        and the dynamical equations are all divided by rhoConst
851    o introduced new parameter rhoConstFresh, a reference density of fresh
852      water, to remove the fresh water flux's dependence on rhoNil. The default
853      value is 999.8 kg/m^3
854    o cleanup up external_forcing.F and external_forcing_surf.F
855      - can now be used by both OCEANIC and OCEANICP
856    checkpoint46h_pre
857    
858     Added code to convert surface volume flux (fresh water) into
859     a mass flux when using P coordinates in the ocean (OCEANICP).
860     Note: It assumes you have set rho0=rhoConst=density of fresh water.
861    
862    checkpoint46g_post
863    o Include a new diagnostic variable phiHydLow for the ocean model
864      - in z-coordinates, it is the bottom pressure anomaly
865      - in p-coordinates, it is the sea surface elevation
866      - in both cases, these variable have global drift, reflecting the mass
867        drift in z-coordinates and the volume drift in p-coordinates
868      - included time averaging for phiHydLow, be aware of the drift!
869    o depth-dependent computation of Bo_surf for pressure coordinates
870      in the ocean (buoyancyRelation='OCEANICP')
871      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
872        Theta, Salinity, and Pressure in the parameter list. This routine is
873        presently contained in find_rho.F. This routine does not give the
874        correct density for 'POLY3', which would be a z-dependent reference
875        density.
876    o cleaned up find_rho
877      - removed obsolete 'eqn' from the parameter list.
878    o added two new verification experiments: gop and goz
879      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
880    checkpoint46g_pre
881    
882    checkpoint46f_post
883    o Enable tangent linear (forward mode) gradient checks:
884      - extended active file handling to g_... files
885      - added TANGENT_SIMULATION to theSimulationMode
886      - extended grdchk package accordingly
887    o added tangent linear setup in verification/carbon/code_ftl
888    o added adjoint setup in verification/front_relax/code_ad
889    
890    checkpoint46e_post
891    o Added new equation of state -> MDJWF
892      - EOS of McDougall et al., 2002, JAOT, submitted
893      - caveat: the equation of state is only valid for a smaller (more
894        realistic?) range of values than JMD95P/Z and UNESCO
895      - added masks to the calculation of pressure in store_pressure
896      - added more check values for density in check_eos (ini_eos.F), some of
897        the old check values are out of the range of the MDJWF-eos, so don't
898        expect perfect matches for those
899    checkpoint46e_pre
900    
901    checkpoint46d_post
902    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
903      'OCEANICP', also initialised field pressure correctly in ini_eos in the
904      case of pressure coordinates. eosType='JMD95Z' in
905      combination with buoyancyRelation='OCEANICP' now causes an error.
906    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
907      in find_alpha/beta.
908    checkpoint46d_pre
909    
910    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
911      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
912    
913    checkpoint46c_post
914    o Changes necessary for ocean in p-coordinates
915     -  Added new buoyancy relation = 'OCEANICP'
916     -  Added new parameters = gravitySign (this used to be contained inside
917        the factor dRdZ which I added when we first switched to R coordinates).
918     X GM/Redi is not compatible (yet)
919     X bottom drag and no-slip need to be debugged.
920    checkpoint46c_pre
921    
922    checkpoint46b_post
923    o Added new equation of state -> JMD95Z and JMD95P
924      - EOS of Jackett and McDougall, 1995, JAOT
925      - moved all EOS parameters into EOS.h
926      - new routines ini_eos.F, store_pressure.F
927    o Added UNESCO EOS, but not recommended because it requires
928      in-situ temperature (see JMD95)
929    o Modified formatting for knudsen2.f in utils/knudsen2 and added
930      unesco.f to be used with POLY3
931    checkpoint46b_pre
932    
933    checkpoint46a_post
934    o Added (atmospheric) pressure loading
935      - new field in FFIELDS.h, etc...
936      - new cpp flag ATMOSPHERIC_LOADING
937    o Changed hFacC to _hFacC in calc_phi_hyd.F
938    o Added SHORTWAVE_HEATING to some files for consistency
939    checkpoint46a_pre
940    
941    checkpoint46
942    further merges from release1_p5
943    o new ctrl package
944      - adopted from ECCO environment to enable optimization
945      - added Eliassen Palm fluxes to controls
946    o added Eliassen Palm flux controls to gradient check package
947    o cost package
948      - Compatible with new ctrl package
949      - added Eliassen Palm cost hooks
950      - modif's of existing cost functions
951    o Adjoint-related bug fixes in kpp:
952      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
953      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
954    o autodiff package
955      - flow directives:
956        + new for S/R do_the_model_io
957        + enhanced for S/R checkpoint
958        + new gmredi.flow
959      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
960        disable adcommon.h/g_common.h by default.
961      - fixed problem for adjoint of global_max
962    o modified verification/carbon/
963    o New setup for adjoint of global_ocean
964    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
965    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
966    o incorporated hooks for sponge layer code (external_forcing.F)
967    
968    checkpoint45d_post
969    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
970    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
971      (affects plume_on_slope "cg2d" output)
972    o add new parameter deltaTfreesurf for free-surface time stepping
973    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
974    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
975    o change phiMin in exp1 (to agree with documentation)
976    o add new flags:
977     - T,S forcing inside/outside Adams-Bashforth
978     - turn off temp,salt advection and/or forcing
979     - for each tracer, define internal flag for multiDimAdvection & A-B
980    o monitor: change definition of KE to check conservation of Energy
981    
982    checkpoint45c_post
983    o Removed f90 comments ("!")
984    o Modified initialisations to enable exf package for MITgcm
985      (without invoking ECCO_PACKAGE).
986    o modifications to gradient check package (Martin Losch)
987      - enable centered differences
988      - modified format of standard output
989    
990    checkpoint45b_post
991    o cleaned exchange calls in cg2d
992    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
993    o included CPP option SINGLE_LAYER_MODE in thermodynamics
994      to configure barotropic setup (Martin Losch)
995    o moved some initialisations within bi,bj loop in dynamics
996      (TAF flow dependency)
997    o in initialise_varia, moved call packages_init_variables
998      before convective_adjustment_init
999      (corresponding adjustment of TAF tape initialisation).
1000    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
1001    
1002    checkpoint45a_post
1003    o compute Rho over the whole domain (extend iMin,jMin indices)
1004    o specific exchange for X-slice domain (case Ny=1)
1005    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
1006    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
1007    
1008    checkpoint44h_post = checkpoint45
1009    o Fix to restore differentiability:
1010      place at which packages_init_variables is called in
1011      initialise_varia is crucial for reverse control flow.
1012    o modifications in GMRedi to enable stable adjoint
1013      (corresponding modif's in thermodynamics, dynamics)
1014    o added missing hook for sponge layer code in external_forcing
1015    o modified test cost functions
1016    o storing in gad_advection (plus removal of write(0,*)!
1017    o missing headers TR1.h added in convective_adjustment routines
1018    o errorMessageUnit set non-equal zero in eeboot
1019      (conflict on some platforms, e.g. IBM SP3)
1020    o modified carbon verif.
1021    
1022    checkpoint44h_pre
1023    o vertical grid option: allow to put the Interface at the middle between
1024      2 cell-centers ; replace delZ in pkg/kpp by drF.
1025    o GM Advective form: Tracers are advected using the residual transport (=
1026      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
1027    
1028    checkpoint44g_post
1029    o fix surface correction term in multiDimAdvection (affects plume_on_slope
1030      results) ; ifdef missing in thermodynamics.F
1031    
1032    checkpoint44f_pre,checkpoint44f_post
1033    o added PTRACERS package
1034      This allows an arbitrary number of passive tracers to be integrated
1035      forward simultaneously with the dynamicaly model.
1036      + Implemented so far:
1037        - basic forward algorithm (time-stepping, advection, diffusion, convection)
1038        - I/O and checkpointing
1039        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
1040      + Not implemented so far:
1041        - KPP
1042        - OBCS
1043      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1044        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1045        line in data.pkg.
1046      + This package is disabled by default since it increases storage.
1047    
1048    
1049    o testscript: added -cleanup option
1050    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1051                 b) enable to filter 2D fields.
1052    
1053    checkpoint44e_pre,post
1054    o re-wrote convective adjustment to use pre-calculated weights
1055      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1056      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1057      Original calls to convect() still in place.
1058    
1059    chkpt44d_pre,post
1060    o added missing EXCLUDE_MONITOR flags
1061    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1062      (incompatible typ in MIN/MAX expressions caused problems
1063      on IBM SP3)
1064    o in genmake added variable MAKEDEPEND
1065      plus resetting for case SunOS
1066    o added timer_stats.c routine for IBM SP3
1067    o removed variables in dynamics
1068    !!! I forgot to create tag chkpt44d_pre !!!
1069    !!! But chkpt44d_pre = chkpt44c_post    !!!
1070    
1071    o real fresh water flux implemented with non-linear free-surface.
1072    
1073    chkpt44c_pre,post
1074    o few fix (mask in shap_s2, EmPmR in external_field_load,
1075      USE_NATURAL_BCS in solve_for_P);
1076    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1077    
1078    checkpoint44b_pre/_post
1079    o merge of relevant stuff from the ecco-branch:
1080      - genmake: removed $S64 overwrite for case SunOS
1081      - pkg/exf: update and corrections for field swapping and obcs
1082      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1083                  harmonized between ECCO and MITgcm
1084      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1085                      updated checkpointing_lev... lists for obcs
1086      - model/src: minor changes in forward_step, plot_field
1087                   added directive for divided adjoint in the_main_loop
1088      - pkg/mdsio: added mdsio_gl_slice
1089    
1090    o check parameters & config (chkpt44a_pre,post)
1091    o OBC and NonLin_FrSurf.
1092    
1093    checkpoint44
1094    o fix bug in mom_vi_del2uv
1095    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1096    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1097    o update AIM experiments (NCEP input files)
1098    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1099    o added some stuff for AD
1100    
1101    checkpoint43
1102    o added two new advection tests
1103    o added global 4x4 degree ocean test
1104    o added test of H&S94 with free surface on cube
1105    o some final mods for gradient check, adjoint,...
1106    
1107    checkpoint42
1108      Fixed AD-related problems:
1109    o Store directives up-to-date with re-arranged Adams-Bashforth
1110      (mainly thermodynamics.F)
1111    o New store directives for multi-dim. advection schemes
1112      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1113      * new common block and key passkey
1114      (mainly gad_advection.F)
1115    o Modified store directives for split of dynamics/thermodynamics
1116      for the case ALLOW_KPP
1117    o Cleaned argument list for timestep_tracer.F
1118    
1119    checkpoint41
1120    o re-formatted/added comments in prologues of key subroutines
1121      to work with protex
1122    
1123    checkpoint40
1124    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1125    o added FLT (floats) package from Arne along with demo. experiment
1126    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1127      implementation of forward-in-time forcing terms
1128    o more mods for non-linear free-surface including new variable
1129    o modified multi-dim method to work on cube
1130    o bug fix in KPP (from DM)
1131    
1132    checkpoint40pre9
1133    o added DST advection schemes
1134    o fix MPI bug on SGI's
1135    o modifications for non-linear free-surface
1136    o fixed conditionals for fixed flow/passive tracer only mode
1137    o added tension/strain form of stress tensor
1138    o changes to commenting of arguments for TAF/TAMC
1139    o added/updated many matlab scripts
1140    o added multi-dimensional advection method for tracers
1141      
1142    checkpoint40pre8
1143    o new package rw/
1144      Added method for dumping intermediate local arrays:
1145      mdsio_writetile - same as mdsio_writefield except works from inside
1146                        bi,bj loop
1147      mdsio_writelocal - same as mdsio_writetile except works for local
1148                         arrays
1149      write_local_r? - higher-level wrapper for mdsio_writelocal
1150      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1151      Example given at end of mom_vecinv.F that dumps some local arrays.
1152    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1153      control flux-form versus vector invariant code.
1154      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1155      or genmake -DISABLE ...
1156    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1157      (additional storing is now needed for case vecinv;
1158      currently nothing implemented to switch this storing off
1159      in case fluxform is used since no CPP flag available).
1160    
1161    checkpoint40pre7
1162    o bug fix in dynamics.F
1163      calc_viscosity called before k=1,Nr loop.
1164    o added some #ifdef's ALLOW_PASSIVE_TRACER
1165    o cleaned initialisations in ctrl_map_ini
1166      related to TAF
1167    
1168    checkpoint40pre6
1169    o split dynamics into thermodynamics & dynamics
1170    o corresponding split of calc_diffusivity into
1171      calc_diffusivity, calc_viscosity
1172      (kpp_calc_diff, kpp_calc_visc).
1173    o Added diffkr, kapgm to control variables
1174    o bug fix in gmredi_slope_limit for ldd97
1175    
1176    checkpoint40pre5
1177    o proper initialization of Adams-Bashforth time stepping
1178      + uses forward step for very first step of model (iter=0)
1179    o re-generated *all* output since almost all output is modified by this
1180      change (sorry but we've been putting this one off for about 2 years)
1181      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1182        *not* regenerated since they are already out of date and I don't
1183        want to create the impression that they are suddenly working.
1184    o removed KAP stuff for DEC's
1185    o modified/added many .cvsignore files in */code and */input
1186    o added new expt "solid-body.cs-32x32x1"
1187      + this uses an alternative form of ini_curvilinear_grid.F which
1188        is not necessarily any better than the current one...
1189    
1190    checkpoint40pre4
1191    o added re-initialisations of utrans,vtrans,rtrans in
1192      calc_common_factors which are crucial for TAF.
1193    o extended iMin,jMin range for calc_common_factors,
1194      calc_diffusivity
1195    o added option ALLOW_PASSIVE_TRACER
1196    o a few minor updates and fixes
1197    
1198    checkpoint40pre3
1199    o created calc_gtr1.F for gad package
1200    o split the_main_loop and re-introduced forward_step
1201    o some recomputations of nIter0 for TAMC
1202    
1203    checkpoint40pre2
1204    o Updated to latest branch of AJA, JMC
1205    o Added gradient check package
1206    o Added routines for passive tracer handling
1207    o Added carbon sequestration sensitivity experiment
1208    
1209    checkpoint39
1210     o Modifications and fixes to support TAMC
1211       (mainly missing or wrong directives)
1212     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1213       in addummy_in_stepping
1214     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1215     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1216     o Included following packages:
1217       cal: calendar
1218       exf: external forcing
1219       ecco: essential routines to control use of cal, exf
1220             (NB: this is not the full ECCO environment)
1221     o disabled some packages by default in genmake
1222    
1223    checkpoint38
1224     o see notes_c37_adj.txt
1225     o corrected wrong layer index in external_forcing_t
1226     o replaced the_main_loop/forward_step by the_main_loop
1227     o removed forceoutput from write_state
1228       (replaced criteria for initial/final state)
1229     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1230    
1231    checkpoint37
1232     o mdsio.F routine split and packaged in pkg/mdsio
1233       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1234        used unless genmake -disable=mdsio)
1235     o allow a more precise surface-geopotential gradient for the atmosphere
1236       taking into account the change in space of Alpha (=1/rho) at the surface.
1237     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1238       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1239     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1240       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1241       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1242     o Time-Average diagnostics defined as a pseudo package "timeave".
1243     o pickup files : old pickup (before c35) did not work with new code (c35
1244       and after) unless activating 2 commented lines in initialise-varia.
1245     o Non-Hydrostatic pickup file Pb fixed.
1246     o bug with Rigid-lid version (since c35) fixed.  
1247    
1248    checkpoint36
1249     o implement Crank-Nickelson barotropic time-stepping
1250     o recover Time-Average diagnostics
1251     o fix Pb in checkpoint (PR#19)
1252     o AIM become a standard package ; clean unused CPP_kees
1253    
1254    checkpoint35
1255     o subtantial rewrite of dynamics.f
1256     o allows staggered time-stepping
1257     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1258     o added bottom drag (linear + quadratic)
1259    
1260    checkpoint34
1261     o Modified exchange routines for correct reverse simulation.
1262     o Added verification output to comply with bug fix in impldiff.F
1263       as of c33 (exp2, natl_box).
1264     o Corrected store directives in dynamics.F
1265     o Corrected array boundaries in impldiff.F
1266     o Corrected array dimensions in gmredi.
1267       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1268     o Added routine GLOBAL_SUM_INT to global_sum.F
1269     o Added mdsio_gl.F for ECCO purposes.
1270    
1271    checkpoint33
1272     o Fixed bug in lower BC in impldiff.F
1273     o Fixed confusion about units of forcing arrays in FFIELDS.h
1274       namely Fu,Fv,Qnet,Qsw,EmPmR:
1275       - Removed verification/natl_box/code/external_fields_scale.F
1276         (did not differ from that in model/src)
1277       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1278         (see FFIELDS.h for description)
1279       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1280         kpp_calc.F and kpp_transport_t.F
1281       - Removed model/src/external_fields_scale.F and calls to it
1282       - verification/natl_box uses flux data with "atmospheric" sign so
1283         a special version of external_fields_load.F is used to
1284         change the data as it's read in. This way, the arrays
1285         have the right units and signs at all times tha a user could
1286         possibly use them.
1287     o Corrected genmake to delete a temporary file during configuration
1288    
1289    checkpoint32
1290     o Scaling of forcing fields moved from external_forcing.F to
1291       external_fields_scale.F, called directly after loading fields.
1292     o Surface relaxation terms added to surface tendency fields in
1293       extra subroutine.
1294     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1295       fields.
1296     o Changes in GMRedi to comply with packaging structure.
1297     o Modifications and bug fixes in KPP package.
1298     o Verification experiment for KPP added (verification/nat_box/)
1299    
1300    checkpoint31
1301     o Packages interface brought in line with defined standard
1302       -> new routines packages_...F
1303       -> changes in initialise_fixed.F, initialise_varia.F
1304       -> enables initialisation interface for ECCO package
1305     o Rescaling of external forcing fields immediately after read
1306       (removed from external_forcing.F)
1307       -> new: surface_fields_scale.F
1308       -> affects ini_foorcing.F, external_fields_load.F
1309     o Computation of surface tendencies before tendency updates.
1310       -> new: external_forcing_surf.F
1311     o Change of variable names useGMRedi, useKPP, useECCO
1312     o Further changes in dynamics.F, impldiff.F for TAMC
1313     o Tested for experiments 0, 2, 4.
1314       - not yet tested for GMRedi.
1315       - not yet tested for KPP.
1316    
1317    checkpoint30
1318     o Updates for OBCs
1319     o New experiment for test OBCs (internal_wave)
1320     o New output.txt in verification/exp4/results/
1321     o Updates for KPP: calculation of viscosity corrected, new variables
1322       kpp_dumpFreq and kpp_taveFreq
1323     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1324       and entry for T90 in genmake
1325    
1326    checkpoint29
1327     o packaged KPP and GM/Redi
1328    
1329    checkpoint28
1330     o Corrected initialization of hFacMin for difference vertical coordinates
1331     o Modified calculation of partial cell thickness to more robust algorithm
1332     o config_summary.F: replaced write_1D_... by write_0D_...
1333       read_write.F: added subroutines write_0D_...
1334     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1335       included some initialisations required for TAMC.
1336     o routine calc_isoslopes: modified sqrt computation to make it
1337       differentiable for zero argument.
1338     o routines dynamics, impldiff:
1339       included store directives and tape key computations required for TAMC.
1340     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1341    
1342    checkpoint27
1343     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1344       formulation works properly with variable resolution.
1345     o restructured the calling tree between the_model_main() and dynamics()
1346     o split initialise() into initialise_fixed() and initialise_varia()
1347     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1348       in new routine ini_psurf()
1349    
1350    checkpoint26
1351     o moved some #ifdef in optional routines to encompass everything
1352       except the argument declarations. This was using up some memory.
1353     o fixed macros like _ADT to work with both versions of Linux cpp
1354     o cleaned up some unused and uninitialized variables
1355       (helps when debugging with strict compile options)
1356     o split up CPP_EEOPTIONS.h into options and macros
1357       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1358     o patch for 2 processor JAM mode
1359    
1360    checkpoint25
1361     o updates for OBCs and NH
1362     o dramatically reduced memory usage
1363     o added "JAM" routines for use on Artic network
1364     o parameterization of convection by implicit vertical diffusion
1365     o added a diagnostic of convective index
1366     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1367       (this is was partly for OBCs and NH but also in anticipation of
1368        an explicit free-surface option)
1369     o initial state input files for U and V
1370    
1371    checkpoint24
1372     o Removed some spurious "REAL"s
1373     o Updated KPP to latest version from JPL
1374     o Added a COS(latitude) in horizontal viscosity
1375    
1376    checkpoint23
1377     o Added del^4 diffusion for salt and temperature
1378     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1379    
1380    checkpoint22
1381     o Made many small changes: implicit none, format(i5), etc...
1382     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1383    
1384    checkpoint21
1385     o Introduced new I/O package that supports direct-access records (mdsio.F)
1386     o Split-up mid-level I/O routines
1387     o Updated input data for experiments 0,1,2,4 and 5
1388     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1389    
1390    checkpoint20
1391     o Tidied up open-boundaries some more
1392     o Added non-hydrostatic code
1393     o Fixed some input data
1394     o Modified MPI start-up to work in "coupled" context.
1395    
1396    checkpoint19
1397     o Tidied up directory structure for verification experiments.
1398     o Added new code for open boundaries.
1399     o Corrected advective terms near boundaries.
1400     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1401     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1402     o Split default parameters out of ini_parms.F into set_defaults.F.
1403    
1404    checkpoint18
1405     o Further changes for optional code generation with
1406       CPP - ugh!
1407    
1408    checkpoint17
1409     o Beginning to incorporating modularity
1410       for supporting atmos. and ocean configs.
1411     o Small changes for TAMC complinace
1412     o New ultra simple test case. Barotropic box
1413       configuration "exp0".
1414    
1415    checkpoint16
1416     o Minor changes to exchange routines to support
1417       accumulation in reverse mode. Adjoint of an
1418       assignment is an addition.
1419     o Changes to support compilation by TAMC (LR(1)
1420       syntax) and by g77 under Linux ( 72 character
1421       limit ).
1422    
1423    checkpoint15
1424     Rewrote exchange routines to allow
1425     o General tile <-> tile connectivity.
1426     o TAMC reverse mode flag ( is this really needed? )
1427     o Variable width overlap and exchange region widths.
1428     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1429       shmput/shmget, VIA, SYSV shmem and every other cool
1430       communication method.
1431    
1432  checkpoint14  checkpoint14
1433   Consistent isomorphism chages made. These allow dynamical core   Consistent isomorphism chages made. These allow dynamical core
1434   to support both pressure and meters as a vertical coordinate.   to support both pressure and meters as a vertical coordinate.

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