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revision 1.7 by adcroft, Mon Jun 22 16:24:50 1998 UTC revision 1.207 by dimitri, Thu Nov 13 06:35:13 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 modifications to make FREEZE flux visible to pkg/kpp
7      - moved surfaceTendencyTice from pkg/seaice to main code
8      - FREEZE moved to FORWARD_STEP
9      - subroutine FREEZE now limits only surface temperature
10        this means new output.txt for global_ocean.90x40x15,
11        global_ocean.cs32x15, and global_with_exf, but note
12        that results for these three experiments remain
13        bit-identical to before if allowFreezing=.FALSE.
14    o added surface flux output variables to TIMEAVE_STATVARS
15    o time-averaged output for pkg/ptracers
16    
17    checkpoint52a_pre
18    o some bug fixes for #undef REAL4_IS_SLOW
19    
20    checkpoint52 = ecco_c52_e35
21    o after testing adjoints of checkpoint51u_post
22    
23    checkpoint51u_post
24    o this is the post-merge tag of the ecco-branch
25      (needs another clean checkout and re-testing)
26    o various natl_box_adjoint configs and results
27      but no input fields
28    o obcs adjoint not yet merged!
29    o adding ECCO global 1x1 and 2x2 degree configs
30    o updated/extended some store directives for seaice
31    o pkg/ecco now containes ecco-specific part of cost function
32    o top level routines the_main_loop, forward_step
33      supersede those in model/src/
34      previous input data.cost now in data.ecco
35      (new namelist ecco_cost_nml)
36    o in ctrl/ cleaned some cross-dependencies and updated CPP options
37    
38    checkpoint51t_post
39    o this is the pre-merge tag of the ecco-branch
40    
41    checkpoint51s_post
42    o cleanup: removed various obsolete #define-s
43    o pkg/grdchk
44      - renamed 'ph-grd 3' to 'grad-res'
45      - merged from ecco-branch
46        (remaining bug fixes for obcs gradient checks)
47      - additional high-precision output for testreport
48        (grep for 'precision_grdchk_result')
49    
50    checkpoint51r_post
51    o cleaned up or removed CPP_OPTIONS.h files
52    o updated results for some of the tests to reflect the new
53      optfiles (-ieee: -O0 instead of -O3)
54    
55    checkpoint51q_post
56    o cd_code:
57      - moved cd_scheme.F -> cd_code_scheme.F
58      - separate read_checkpoint from cd_code_ini_vars.F
59      - separated cd_code part from write_checkpoint
60      - updated AD_SOURCE, generated .flow
61      - added CD_CODE_VARS.h to the_main_loop
62      - Moving cd_code specific store dir.s to pkg/cd_code
63    o ctrl package totally restructured
64      - pack/unpack now optional and decoupled from
65        xx_/adxx_ I/O
66      - ctrl_pack/unpack cleaned
67        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
68      - confined inclusion of AD_CONFIG.h to where necessary.
69    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
70    
71    checkpoint51p_post
72    o create initial cd_code package
73      - WARNING: the initialization of fields within packages
74        is broken because INI_FIELDS (where READ_CHECKPOINT is
75        called) is called *before* PACKAGES_INIT_VARIABLES.
76        This seems to be backwards since
77        1) its important to initially zero the entire field including
78           the "halo" region
79        2) zeroing needs to be done *before* reading pickup info
80           and the pickup call might or might not happen in any
81           particular run
82      - this needs an overhaul for R2
83    o cleanup verification/*/code/GMREDI_OPTIONS.h
84    o cleanup testreport
85    
86    checkpoint51o_post
87    o bringing AD-related verif's up to date with genmake2
88      - carbon/
89      - global_ocean.90x40x15/
90      - hs.94.1x64x5/
91      - (front_relax/ )
92    o (more) consistent directory structure for AD-related verif.'s
93    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
94    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
95    o bug fix in find_alpha.F for MDJWF:
96      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
97        change rho -> rho-rhoConst
98      - replace call find_rho to find_rhonum
99    o initialisation of rFlx extended to full array (required by TAF)
100      and shifted to thermodynamics
101    o removed PTRACERS.h in ptracers routine
102    o added surfacetendencyPtr to S/R parameter list pracers_forcing
103    o Correcting initialisations for fVerU, fVerV.
104    o helping TAF to recognize dependency on kUp for
105      fVerU, fVerV
106    o Replacing delZ by delR in pkg/ctrl/
107    checkpoint51o_pre
108    
109    o undid all of cp51 pending some cleanups and discussion
110    o added the [#include "AD_CONFIG.h"] statement to all files that need
111       it for adjoint/tl #defines
112     o re-worked the build logic in genmake2 to support AD_CONFIG.h
113     o removed tools/genmake since it no longer works
114    
115    checkpoint51n_post
116    o modifications to make FREEZE flux visible to pkg/kpp
117      - moved surfaceTendencyTice from pkg/seaice to main code
118      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
119      - subroutine FREEZE now limits only surface temperature
120        (this means new output.txt for global_ocean.90x40x15,
121         global_ocean.cs32x15, and global_with_exf)
122    o added surface flux output variables to TIMEAVE_STATVARS
123    
124    checkpoint51n_pre
125    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
126    o added [#include "AD_CONFIG.h"] to all files that use the following
127      defines:
128      - ALLOW_ADJOINT_RUN
129      - ALLOW_TANGENTLINEAR_RUN
130      - ALLOW_ECCO_OPTIMIZATION
131    
132    checkpoint51m_post
133    o incorporating changes to get TAMC/TAF working in genmake2
134      - added new TAMC/TAF targets to the Makefile
135      - various cleanups related to package handling
136      - these changes should have no impact on the forward model
137    
138    checkpoint51l_post
139    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
140     - faster algorithm for cal_addtime.F
141     - higher precision arithmetic, where needed
142     - pkg/exf *startdate variables changed from calendar date to
143       model integration time
144    
145    checkpoint51l_pre
146    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
147    o enable to apply restoring on S & T only in a latitude band.
148    o update output (external_forcing_surf modif. change truncation errors)
149       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
150    
151    checkpoint51k_post
152    o change default to: useNHMTerms=.FALSE.
153     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
154       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
155     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
156        exp1, ideal_2D_oce
157     - change data file of oceanic exp (leave the results unchanged for now)
158       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
159    o set gravitySign automatically according to the vertical coordinate used
160      (and change sign: back to "logical" value: +1 when R increases downward)
161    o added an include barrier to the default CPP_OPTIONS.h and
162      removed the #include "PACKAGES_CONFIG.h" from it
163    o fix a bug in mom_fluxform (from chk51j_post)
164    
165    checkpoint51j_post
166    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
167    o adjusted some flow directives (dynamics, thermodynamics)
168    o added cubed-sphere case to test cost function
169    o heckpoint_lev?_directives.h now include
170      pkg-specific directives, whenever those are enabled.
171    o Moving pkg-specific flow directives to corresponding pkg
172      Moving pkg-specific differentiation list to corresponding pkg
173      Moving pkg-specific checkpoint-lev storing to corresponding pkg
174      ---> conventions are
175           - pkg_ad.flow
176           - pkg_ad_diff.list
177           - pkg_ad_check_lev?_dir.h
178    
179    checkpoint51i_post
180    o merge of the branch-genmake2
181      - knowingly breaks the older genmake
182      - automatic generation of all ALLOW_${PKG_NAME} defines
183      - new testreport supersedes older testscript
184    o large number of package inclusion and header cleanups
185    checkpoint51i_pre
186    
187    o new output for adjoin of global ocean vector invariant
188    o fix for checkpoint of thermodynamic seaice and bulk_force
189    o Steph gchem various cleanups
190    
191    checkpoint 51h_pre
192    o fixed some single quotes
193    o modify gchem pkg to be more versatile
194    o modifications to clean up dic pkg
195    o add pkg/cfc
196    
197    checkpoint51g_post
198    o provide links for ARPACK and ADM*TLM
199    o start removing verification/vero/
200    o update AD-related stuff
201      (in particular some IF-statements in model/src/ routines)
202    o adding to verification/global_ocean.90x40x15/ adjoint of
203      vector invariant setup
204    
205    checkpoint51f_post
206    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
207    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
208      of tracer Green's fucntions for ocean inversion project.
209    
210    checkpoint51f_pre
211    o Added on-the-fly spatial interpolation capability
212        "USE_EXF_INTERPOLATION" to pkg/exf.
213      - This is a temporary Cartesian-grid hack until
214        the super-duper ESMF coupler becomes available.
215      - See verification/global_with_exf/README for usage example.
216      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
217        flags and modified pkg/seaice accordingly.
218    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
219        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
220        non-local transport term.
221    
222    checkpoint51e_post
223    o pkg/mom_vecinv:
224      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
225      - add time-ave diagnostic of vorticity advection.
226    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
227    o atmospheric geopotential: - include water vapor effect;
228                                - use p^kappa in p* scaling.
229    o land pkg: read initial state from files.
230    o AIM : add stratospheric drag in the upper level
231    
232    checkpoint51d_post
233    o change function ILNBLNK (=> last non-blank char.) to return zero
234      (instead of the string length) when the string. char is empty
235    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
236    o modif's to restore TAMC compatibility
237      - avoid "_d" constructs in PARAMETER declarations
238      - avoid interrupting lines by comment lines
239    o Use cluster local disks for purely local I/O
240      vs. globally visible disks needed for ctrl stuff
241      (merged from ecco-branch)
242      - new active_file_loc... and mdsio_..._loc routines
243      - affected packages: autodiff, ctrl, grdchk, mdsio
244    
245    checkpoint51c_post
246    o introducing integer flag debugLevel
247      - debLevZero: suppress all output
248      - debLevA: standard
249      - debLevB: equivalent to current debugMode=.TRUE.
250    o introducing pathname variable mdsioLocalDir for mdsio
251      that can be specified at runtime
252      (relevant for cluster I/O to local disk)
253    `
254    >>>checkpoint51b_post
255    adjoint of ptracers
256    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
257    o extended state in checkpoint_lev?, etc.
258    o alternative ctrl/cost with tr1 or ptracer
259    o new comlev1_bibj_ptracers
260    o new ptracers.flow
261    o made ptracers_forcing same as external_forcing_s
262    o added verification for adjoint with ptracers
263      - adm. grdchk fail so far
264      - tlm. grdchk OK
265      - checked tapelev/comlev recomputations: OK
266    <<<checkpoint51b_pre
267    
268    checkpoint51a_post
269    o added code for biogeochemistry package
270      - new pkgs: dic, gchem
271      - new subroutine in ptracers
272    o modify code for biogeo packages
273      - in model/src and pkg/ptracers
274    
275    checkpoint51
276    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
277      - autodiff, ctrl, exf, grdchk, seaice
278      kept separate packages
279      - cost, ecco, obcs
280    o updating verification/internal_wave, verification/lab_sea
281      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
282    
283    checkpoint50i_post
284    o Preparing next differentiable checkpoint and sync
285      of MAIN vs. ecco-branch
286      - 1st step: this one is differentiable
287      - 2nd step: next(! not this) checkpoint will have updated packages
288                  from ecco-branch)
289    
290    checkpoint50h_post
291    o new package "land": provide surface BC for AIM.
292    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
293    o AIM: use true log-P extrapolation for near surface temp (= as in
294        F.Molteni paper) ; update aim.5l_cs output.
295    o New variable in PARM03 for more flexible pickups
296    o somewhat cleaned package initialisation sequence for
297      ctrl/ cost/ ecco/ in packages_... routines
298    
299    checkpoint50g_post
300    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
301      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
302      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
303        made the default because of faster convergence than ADI
304    
305    checkpoint50f_post
306    o exf totally restructured
307      - replaced all exf_set_ routines by one generic exf_set_gen.F
308        and made sure it's still differentiable
309      - split exf_getffields.F into new exf_bulkformulae.F
310      - exf_inscal_/exf_outscal_ suffixes consistent with field names
311      - updated adjoint/makefile and relevant verif. accordingly
312    
313    checkpoint50f_pre
314     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
315          + change Evap over land. (update aim.5l_cs output)
316     o added missing .cvsignores and made uniform across expts
317     o changed configuration of tidal_basin_2d expt
318     o added pkg/debug functions for tracing code in fatal crashes
319     o tidied pkg/monitor to use MONITOR_OPTIONS.h
320     o new fn in pkg/monitor to stop model if solution grows too big
321     o removed lots of single quotes from comments
322    
323    checkpoint50e_post
324    o make KPP work with PTRACERS
325     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
326       nearly a copy of kpp_transport_s
327     - there is no analogue to SurfaceTendencyS, so I have to use
328       gPtr(of the surface layer) instead
329    o add a new platform SunFire+mpi (SunFire 15000) to genmake
330    checkpoint50e_pre
331    
332    checkpoint50d_post
333    o change kpp output from multiple-record state files to single-record state
334      files analogous to write_state.F
335    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
336      analogous to the cg2d-related output.
337    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
338      so that writing to internal file fn (with length 512) fails.
339    checkpoint50d_pre
340    
341    checkpoint50c_post
342    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
343    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
344    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
345    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
346    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
347    
348    checkpoint50c_pre
349    Merging from release1_p13:
350    o bug fix for pkg/seaice dynamic solver
351    o Added SEAICE_initialHEFF to pkg/seaice
352    
353    checkpoint50b_post
354    o store u*,v* in gU,V instead of in guNm1,gvNm1
355    o in order to put the momForcing out of the Adams-Bashforth:
356      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
357      to timestep.F
358    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
359    o re-generate output for highly sensitive test-exp:
360       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
361    
362    checkpoint50b_pre
363    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
364    o corrected CPP option mismatch in exf_Bulk... functions for case
365      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
366    
367    checkpoint50a_post
368    o Bug fix for merging between c50 and KPP.
369      ikey was passed from thermodynamics to kpp_calc via
370      common block rather than being recomputed in kpp_calc,
371      in contradiction with new key itdkey.
372      New key ikppkey created, and tamc.h headers updated.
373    
374    checkpoint50
375    - 2nd step of merge with ecco-branch:
376      merge changes in ecco-branch back into main trunk
377    - bug fix in find_alpha
378    - more storing in gmredi_calc_tensor.F, kpp_routines.F
379    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
380    - merged some sliced AD support routines
381    
382    checkpoint49
383    merged from ecco-branch:
384    o exf:
385      - Enable initialisation of forcing fields to constant
386        (runtime) values.
387      - in exf_getffields.F
388        Reduce i-/j-loop to interior domain, discarding overlaps.
389        That also fixes wrong TAF-key computations for key_1, key_2
390        with bulf formulae.
391      - exf_init.F modify #ifdef for exf_init_evap
392      - exf_getffieldrec.F, ctrl_getrec.F
393        The following INT-usages are not safe:
394          fldsecs  = int(fldsecs/fldperiod)*fldperiod
395          fldcount = int(fldsecs/fldperiod) + 1
396        and were modified.
397    o autodiff: checkpoint_lev...
398      - updated storing for bulk formulae (some arrays were missing)
399      - added state for seaice package
400      - synchronized with main branch
401    o DIVA:
402      Modif.s in
403      - the_main_loop.F
404      - the_model_main.F
405      and added cost_final_restore.F cost_final_store.F
406      o With these changes, it is possible to fully separate
407        the first forward run to compute the cost function (mdthe_main_loop)
408        and adjoint runs over individual DIVA intervals (adthe_main_loop)
409        into separate model executions.
410        This enables better tuning of DIVA to given queue sizes.
411      o Loss of cost function value in consecutive DIVA runs is
412        fixed by storing to 'costfinal' file.
413      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
414        beginning/end of adjoint integration is accounted for.
415      The current changes apply to TAF-1.4.26.
416      TAF has one remaining bug, requiring one manual change
417      (see MITgcm manual).
418    o cal: synchronized between MAIN and ecco-branch
419    
420    checkpoint48i_post
421    o Changes to restore differentiability of code w.r.t. previous tag
422      (mostly adding new routines to make list and replacing
423      pressure by totPhiHyd).
424    o Updated and merged grdchk package
425      - has both ADM and TLM checks
426      - works for single- and multi-proc.
427      - output cleaned
428      - worked successfully for parallel DIVA
429    o genmake:
430      - Adding -platform=SP4
431      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
432    o Modif. for DIVA:
433      ctrl_unpack should not be called in intermediate DIVA interval.
434      (similar thing would apply for active files such as
435      tbar, sbar, psbar, which should not be reinitialised;
436      only relevant for ecco-branch)
437    
438    checkpoint48h_post
439    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
440    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
441    o Added SEAICE_initialHEFF to pkg/seaice
442    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
443    
444    checkpoint48g_post
445    --- EOS:
446    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
447      store total Potential in totPhyHyd for diagnostics & EOS.
448    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
449    --- Pressure/geopotential gradient:
450    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
451    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
452      ( changes results of global_ocean_pressure )
453    o NLFS + z-coord.: add eta*Rho' contribution.
454    o accurate phiHyd when using interface-W at the middle between 2 centers
455     ( changes results of ideal_2D_oce )
456    o includes r* 2nd term in potential gradient.
457    
458    checkpoint48f_post
459    Merging from release1_p12:
460    o Modifications for using pkg/exf with pkg/seaice
461      - improved description of the various forcing configurations
462      - added basic radiation bulk formulae to pkg/exf
463      - units/sign fix for evap computation in exf_getffields.F
464      - updated verification/global_with_exf/results/output.txt
465    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
466      (SBO) core products, including oceanic mass, center-of-mass,
467      angular, and bottom pressure (see pkg/sbo/README.sbo).
468    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
469      to avoid negative values in shallow regions.
470      - updated verification/natl_box/results/output.txt
471      - updated verification/lab_sea/results/output.txt
472    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
473    o Added useSingleCpuIO option (see PARAMS.h).
474    o Updated useSingleCpuIO option in mdsio_writefield.F to
475      work with multi-field files, e.g., for single-file pickup.
476    o pkg/seaice:
477      - bug fix in growth.F: QNET for no shortwave case
478      - added HeffFile for specifying initial sea-ice thickness
479      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
480    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
481      kpp_transport_t.F, forward_step.F, and the_main_loop.F
482    o pkg/seaice:
483      - adjoint-friendly modifications
484      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
485    
486    checkpoint48e_post
487    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
488    o dynamics: change definition of computational domain & adapt mom_fluxform
489      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
490    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
491        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
492        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
493        global_ocean.90x40x15 global_with_exf global_ocean_pressure
494        inverted_barometer solid-body.cs-32x32x1
495      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
496    
497    checkpoint48d_post
498    o in preparation for r*:
499     a) use pre-computed gradient of hydrostatic potential:
500        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
501     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
502        => affects results of glob_oce_pressure (different truncation error)  
503      update output.txt of ideal_2D_oce & global_ocean_pressure
504    
505    checkpoint48d_pre
506    o in preparation for r*:
507      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
508      pass the 2 comp. of the grad. as arguments to momentum S/R.
509      but for the moment, only used if it does not change the results.
510    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
511    
512    checkpoint48c_post
513    Modifications in treatment of initial flux forcing controls
514    to avoid extra storing of flux fields.
515    
516    checkpoint48c_pre
517    o Added tidal_basin_2d experiment (currently 1D!)
518    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
519    
520    checkpoint48b_post
521    o r* coordinate added in #ifdef NONLIN_FRSURF block.
522     (modification to pressure gradient not yet implemented)
523    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
524      (for U & V) that are used for vertical advection of momentum.
525    
526    checkpoint48a_post
527    o In preparation for r*, use temp. array to compute vertical transport
528       in flux-form momentum pkg. => change results of few test-exp.
529      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
530                        lab_sea, natl_box & plume_on_slope
531    
532    checkpoint48
533    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
534    
535    checkpoint47j_post
536    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
537    o moved adexch from forward_step to addummy_in_stepping
538    o added exch in ctrl_map_...
539    o aveFreq.=0. at end of cost_final to avoid overwrite in
540      reverse checkpointing loop
541    o Yet more changes in gmredi:
542      * adgmredi_calc_tensor
543        avoiding all recomputation of gmredi_slope_limit
544      * adgmredi_x/y/rtransport
545        added flag for excessive storing to avoid recomp. of
546        u/v/rtans, dTdx/y/z
547        -> this is not really necessary and very memory-consuming
548      * adgmredi_slope_psi:
549        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
550      * gmredi_slope_limit
551        re-activated full calculation of taperfct for case 'ac02'
552    o updating verification/ adjoints of carbon, global_ocean.90x40x15
553    
554    checkpoint47i_post
555    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
556    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
557      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
558    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
559    o gmredi: fix few bugs.
560    
561    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
562    This will be a good checkpoint to plug into the ecco-branch.
563    o few modif.'s to get latest version adjointed
564      (mainly kick out code in ini_linear_phisurf)
565    o modif's to run adjoint with exactConserv
566    o case GM_BOLUS_ADVEC should be cleaned
567      S/R gmredi_slope_psi should be cleaned
568    o verification/carbon now has exactConserv=.TRUE.
569    
570    checkpoint47g_post
571    o time-average AIM output: becomes independent from statvars time-average
572      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
573    o After TAF bug fix:
574      Tested adjoint of gmredi package.
575      Tests were done with checkpoint47 rather than with latest
576      checkpoint47f_post since the latter is broken for the adjoint
577      verification/carbon/ contains both ADM and TLM gradient checks.
578    Here they are, before they get changed/lost/stolen.
579    Mostly modif.'s to fix numerical sensitivities.
580    Gradient checks OK for
581    - GM_taper_scheme:
582      * clipping
583      * ac02
584      * linear
585      * glw91
586      * dm95
587      * ldd97
588    - GMREDI_OPTIONS:
589      * GM_VISBECK_VARIABLE_K
590      * GM_NON_UNITY_DIAGONAL
591      * GM_EXTRA_DIAGONAL
592      * GM_BOLUS_ADVEC
593    in conjunction with data.gmredi parameters to be checked in
594    in a few minutes under verification/carbon/code/
595    
596    checkpoint47f_post
597    Merging from release1_p10:
598    o modifications for using pkg/exf with pkg/seaice
599      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
600        and SEAICE_EXTERNAL_FLUXES
601      - pkg/exf CPP options EXF_READ_EVAP and
602        EXF_NO_BULK_COMPUTATIONS
603      - usage examples are Experiments 8 and 9 in
604        verification/lab_sea/README
605      - verification/lab_sea default experiment now uses
606        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
607    
608    checkpoint47e_post
609    o created a tag prior to creating a branch
610    
611    checkpoint47d_post
612    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
613      at the bottom boundary had an erroneous half slip boundary condition
614    o added bottom drag and no slip boundary condition capabilities to
615      oceanic pressure coordinates code
616    o added new verification experiment global_ocean_pressure, this experiment is
617      also described in the tutorial section of the manual
618    checkpoint47d_pre
619    
620    checkpoint47c_post
621    o Added a verification experiment for a global cubed-sphere ocean run
622      -  verification/global_ocean.cubed32x32x30
623      -  uses pkg/therm_seaice and pkg/bulk_forcing
624    
625    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
626    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
627      when using P-coordinate; only implemented for atmospheric config.
628    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
629      NOTES: requires option NONLIN_FRSURF to be "#define".
630    o update advect_xz/results/output.txt (left from checkpoint44g_post)
631    
632    checkpoint47b_post
633    Merging from release1_p9:
634    o pkg/seaice
635      - removed GOTO's and added taf directives
636      - double precision constants to reduce the g77 (Linux)
637        to F77 (SGI) differences reported in release1_p8
638    o tools/genmake
639      - added SGI options
640    o verification/testscript
641      - updated to that of checkpoint47a_post
642    o verification/global_ocean.90x40x15/input/eedata
643      - modified for SGI f77 compatibility
644    o verification/lab_sea
645      - added description of sea-ice model
646      - added missing matlab routines
647      - added test of thermodynamics parallelization
648    
649    checkpoint47a_post
650    o new pkg: aim_v23
651     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
652       for now, keep the same surface forcing as before.
653     - Part-Cell implemented into AIM; check that Heat & Water are conserved
654     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
655     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
656    o add diagnostic of surface correction term in monitor output
657    
658    o bulk_force and therm_seaice
659    - Two packages:  bulk_force (Bulk forcing)
660      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
661    - Earlier integration from Stephaine Dutkiewicz
662      and Patrick Heimbach.
663    - Two ifdef statements for compile time,
664       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
665    
666    checkpoint47
667    differentiable version of checkpoint46n_post
668    o bug fix in quasihydrostaticterms
669    o * "clean" adjoint code (in terms of extensive recomputations)
670        can now be obtained for all GMREDI options (i.e. for
671        - GM_VISBECK_VARIABLE_K
672        - GM_NON_UNITY_DIAGONAL
673        - GM_EXTRA_DIAGONAL
674        - GM_BOLUS_ADVEC )
675      * However, wrong gradient check problem remains unsolved.
676      * New CPP options have been introduced for different
677        tapering schemes
678    o external_fields_load now part of differentiation list
679    o pressure needs multiple storing;
680      would be nice to have store_pressure at beginning or
681      end of forward_step, e.g. by having phiHyd global (5-dim.)
682      (NB: pressure is needed for certain cases in find_rho,
683      which is also invoked through convective_adjustment).
684    o recomputations in find_rho for cases
685     'JMD95'/'UNESCO' or 'MDJWF' are OK.
686    o #define ATMOSPHERIC_LOADING should be differentiable
687    o ini_forcing shifted to begining of initialise_varia
688    o Incorporating QNVS line search routines into MITgcm
689      (this is separate code, and therefore not under pkg)
690      lsopt/, optim/
691    o Updated verification/carbon/
692      - #define GM_VISBECK_VARIABLE_K
693      - GM_taper_scheme    = 'ldd97'    
694    
695    checkpoint46n_post
696    Merging from release1_p8:
697    o verification/natl_box:
698      updating new external_fields_load routine
699    o New package: pkg/seaice
700      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
701      The sea-ice code is based on Hibler (1979-1980).
702      Two sea-ice dynamic solvers, ADI and LSR, are included.
703      In addition to computing prognostic sea-ice variables and diagnosing
704      the forcing/external data fields that drive the ocean model,
705      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
706      The implied surface heat flux is then stored in variable
707      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
708      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
709      non-local transport term.  Because this call precedes model
710      thermodynamics, temperature under sea-ice may not be "exactly" at
711      the freezing point by the time theta is dumped or time-averaged.
712      N.B.: fairly large differences in accuracy occur across
713            different platforms/compilers; comparison between
714            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
715            generated output gives:
716       T           S           U           V
717      C D M    c        m  s        m  s        m  s        m  s
718      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
719      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
720      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
721    
722      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
723    o GAD:
724      - generated new common blocks to account for call of
725        same gad routines with differing traceridentities
726        (needed to modify tracerIdentity indices in GAD.h)
727      - generated separate common blocks for case useCubedSphereExchange
728        (Department of Futurology)
729      - parameter lists to gmredi_?transport: added tracerIdentity
730      - added new key indices to tamc.h
731    o external_fields_load:
732      - added this routine to TAF list
733      - needed to make some common blocks global and additional storing
734        along the same lines as exf package (checkpoint_lev?_directives.h)
735    o exf:
736      updated external forcing package
737      - bug fixes carried over from ecco-branch
738        (missing OBCS_OPTIONS.h in two routines)
739      - enable easy to use "no forcing".
740      - added exf I/O for atmospheric loading
741      - added exf I/O for runoff data
742      - transfered scaling between exf <-> MITgcm to exf namelist
743    o Adding new verification experiment global_with_exf.
744      This verification experiment is almost identical to the
745      global_ocean.90x40x15 experiment, except that it uses
746      the exf (and cal) package instead of the
747      external_fields_load routine (cf README file).
748    
749    checkpoint46m_post
750    o modified testscript to return -- when there are no lines of "%MON" output
751    o added new flag "quasiHydrostatic" for QH mode
752      and new routine quasihydrostaticterms()
753    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
754      New routine: mom_u_coriolis_nh()
755    o fixed sign of non-hydrostatic metric terms in u and v equations.
756      Depend on correct sign of gravitySign.
757    o added work.pc* to .cvsignore in aim directories using ifc
758    o introduced flag for controllin non-hydrostatic metric terms
759    o removed gravitySign from PARM04
760    o switched to g77/ifc from pgf77 in aim experiments
761    
762    checkpoint46l_post
763    o made convective adjustment work with pressure coordinates:
764     - changed the direction of k-loop in convective_adjustment.F for the
765       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
766     - adjusted the reference pressure k-index in convective_adjustment.F
767     - adjusted the convection condition in convect.F (in analogy to
768       calc_ivdc.F)
769     - convective_adjustment no longer computes anything on the halos
770     - removed the warnings about negative salinity from find_rho.F and
771       find_alpha.F; instead the new routine look_for_neg_salinity, called
772       at the beginning of find_rho, find_alpha, and find_beta, does a
773       check of the entire slice, if CPP-option
774       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
775    checkpoint46l_pre
776    
777    checkpoint46k_post
778    o fixed the verification/global_ocean.90x40x15 experiment:
779     - new bathymetry (the world according to A., JMC, and M.)
780     - new initial fields and forcing fields (*.bin files)
781     - new POLY3.COEFFS (for the next release one should switch to a full
782       equation of state: JMD95P or MDJWF)
783     - fixed several errors and redundancies in the data file
784     - experiment uses looped cells
785     - added matlab directory with diagnostic scripts for plotting of output
786    
787    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
788     - read AIM physics parameters from a file (data.aimphys)
789     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
790    
791    checkpoint46j_post
792    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
793    o move wVel computation at the end of the time step, in S/R integr_continuity
794    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
795    o update timeave pkg for wVel diagnostic.
796    checkpoint46j_pre
797    
798    checkpoint46i_post
799    o Clean up AIM package (and keep the results unchanged):
800      include CPP_OPTION and use IMPLICT NONE in all routines ;
801      declare all the variables _RL ; use _d 0 for all numerical constants.
802      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
803    
804    checkpoint46h_post
805    o cleaned up the use of rhoNil and rhoConst.
806      - rhoNil should only appear in the LINEAR equation of state, everywhere
807        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
808        and the dynamical equations are all divided by rhoConst
809    o introduced new parameter rhoConstFresh, a reference density of fresh
810      water, to remove the fresh water flux's dependence on rhoNil. The default
811      value is 999.8 kg/m^3
812    o cleanup up external_forcing.F and external_forcing_surf.F
813      - can now be used by both OCEANIC and OCEANICP
814    checkpoint46h_pre
815    
816     Added code to convert surface volume flux (fresh water) into
817     a mass flux when using P coordinates in the ocean (OCEANICP).
818     Note: It assumes you have set rho0=rhoConst=density of fresh water.
819    
820    checkpoint46g_post
821    o Include a new diagnostic variable phiHydLow for the ocean model
822      - in z-coordinates, it is the bottom pressure anomaly
823      - in p-coordinates, it is the sea surface elevation
824      - in both cases, these variable have global drift, reflecting the mass
825        drift in z-coordinates and the volume drift in p-coordinates
826      - included time averaging for phiHydLow, be aware of the drift!
827    o depth-dependent computation of Bo_surf for pressure coordinates
828      in the ocean (buoyancyRelation='OCEANICP')
829      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
830        Theta, Salinity, and Pressure in the parameter list. This routine is
831        presently contained in find_rho.F. This routine does not give the
832        correct density for 'POLY3', which would be a z-dependent reference
833        density.
834    o cleaned up find_rho
835      - removed obsolete 'eqn' from the parameter list.
836    o added two new verification experiments: gop and goz
837      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
838    checkpoint46g_pre
839    
840    checkpoint46f_post
841    o Enable tangent linear (forward mode) gradient checks:
842      - extended active file handling to g_... files
843      - added TANGENT_SIMULATION to theSimulationMode
844      - extended grdchk package accordingly
845    o added tangent linear setup in verification/carbon/code_ftl
846    o added adjoint setup in verification/front_relax/code_ad
847    
848    checkpoint46e_post
849    o Added new equation of state -> MDJWF
850      - EOS of McDougall et al., 2002, JAOT, submitted
851      - caveat: the equation of state is only valid for a smaller (more
852        realistic?) range of values than JMD95P/Z and UNESCO
853      - added masks to the calculation of pressure in store_pressure
854      - added more check values for density in check_eos (ini_eos.F), some of
855        the old check values are out of the range of the MDJWF-eos, so don't
856        expect perfect matches for those
857    checkpoint46e_pre
858    
859    checkpoint46d_post
860    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
861      'OCEANICP', also initialised field pressure correctly in ini_eos in the
862      case of pressure coordinates. eosType='JMD95Z' in
863      combination with buoyancyRelation='OCEANICP' now causes an error.
864    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
865      in find_alpha/beta.
866    checkpoint46d_pre
867    
868    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
869      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
870    
871    checkpoint46c_post
872    o Changes necessary for ocean in p-coordinates
873     -  Added new buoyancy relation = 'OCEANICP'
874     -  Added new parameters = gravitySign (this used to be contained inside
875        the factor dRdZ which I added when we first switched to R coordinates).
876     X GM/Redi is not compatible (yet)
877     X bottom drag and no-slip need to be debugged.
878    checkpoint46c_pre
879    
880    checkpoint46b_post
881    o Added new equation of state -> JMD95Z and JMD95P
882      - EOS of Jackett and McDougall, 1995, JAOT
883      - moved all EOS parameters into EOS.h
884      - new routines ini_eos.F, store_pressure.F
885    o Added UNESCO EOS, but not recommended because it requires
886      in-situ temperature (see JMD95)
887    o Modified formatting for knudsen2.f in utils/knudsen2 and added
888      unesco.f to be used with POLY3
889    checkpoint46b_pre
890    
891    checkpoint46a_post
892    o Added (atmospheric) pressure loading
893      - new field in FFIELDS.h, etc...
894      - new cpp flag ATMOSPHERIC_LOADING
895    o Changed hFacC to _hFacC in calc_phi_hyd.F
896    o Added SHORTWAVE_HEATING to some files for consistency
897    checkpoint46a_pre
898    
899    checkpoint46
900    further merges from release1_p5
901    o new ctrl package
902      - adopted from ECCO environment to enable optimization
903      - added Eliassen Palm fluxes to controls
904    o added Eliassen Palm flux controls to gradient check package
905    o cost package
906      - Compatible with new ctrl package
907      - added Eliassen Palm cost hooks
908      - modif's of existing cost functions
909    o Adjoint-related bug fixes in kpp:
910      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
911      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
912    o autodiff package
913      - flow directives:
914        + new for S/R do_the_model_io
915        + enhanced for S/R checkpoint
916        + new gmredi.flow
917      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
918        disable adcommon.h/g_common.h by default.
919      - fixed problem for adjoint of global_max
920    o modified verification/carbon/
921    o New setup for adjoint of global_ocean
922    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
923    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
924    o incorporated hooks for sponge layer code (external_forcing.F)
925    
926    checkpoint45d_post
927    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
928    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
929      (affects plume_on_slope "cg2d" output)
930    o add new parameter deltaTfreesurf for free-surface time stepping
931    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
932    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
933    o change phiMin in exp1 (to agree with documentation)
934    o add new flags:
935     - T,S forcing inside/outside Adams-Bashforth
936     - turn off temp,salt advection and/or forcing
937     - for each tracer, define internal flag for multiDimAdvection & A-B
938    o monitor: change definition of KE to check conservation of Energy
939    
940    checkpoint45c_post
941    o Removed f90 comments ("!")
942    o Modified initialisations to enable exf package for MITgcm
943      (without invoking ECCO_PACKAGE).
944    o modifications to gradient check package (Martin Losch)
945      - enable centered differences
946      - modified format of standard output
947    
948    checkpoint45b_post
949    o cleaned exchange calls in cg2d
950    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
951    o included CPP option SINGLE_LAYER_MODE in thermodynamics
952      to configure barotropic setup (Martin Losch)
953    o moved some initialisations within bi,bj loop in dynamics
954      (TAF flow dependency)
955    o in initialise_varia, moved call packages_init_variables
956      before convective_adjustment_init
957      (corresponding adjustment of TAF tape initialisation).
958    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
959    
960    checkpoint45a_post
961    o compute Rho over the whole domain (extend iMin,jMin indices)
962    o specific exchange for X-slice domain (case Ny=1)
963    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
964    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
965    
966    checkpoint44h_post = checkpoint45
967    o Fix to restore differentiability:
968      place at which packages_init_variables is called in
969      initialise_varia is crucial for reverse control flow.
970    o modifications in GMRedi to enable stable adjoint
971      (corresponding modif's in thermodynamics, dynamics)
972    o added missing hook for sponge layer code in external_forcing
973    o modified test cost functions
974    o storing in gad_advection (plus removal of write(0,*)!
975    o missing headers TR1.h added in convective_adjustment routines
976    o errorMessageUnit set non-equal zero in eeboot
977      (conflict on some platforms, e.g. IBM SP3)
978    o modified carbon verif.
979    
980    checkpoint44h_pre
981    o vertical grid option: allow to put the Interface at the middle between
982      2 cell-centers ; replace delZ in pkg/kpp by drF.
983    o GM Advective form: Tracers are advected using the residual transport (=
984      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
985    
986    checkpoint44g_post
987    o fix surface correction term in multiDimAdvection (affects plume_on_slope
988      results) ; ifdef missing in thermodynamics.F
989    
990    checkpoint44f_pre,checkpoint44f_post
991    o added PTRACERS package
992      This allows an arbitrary number of passive tracers to be integrated
993      forward simultaneously with the dynamicaly model.
994      + Implemented so far:
995        - basic forward algorithm (time-stepping, advection, diffusion, convection)
996        - I/O and checkpointing
997        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
998      + Not implemented so far:
999        - KPP
1000        - OBCS
1001      + No specific example supplied (yet) but global_ocean.90x40x15 has the
1002        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
1003        line in data.pkg.
1004      + This package is disabled by default since it increases storage.
1005    
1006    
1007    o testscript: added -cleanup option
1008    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
1009                 b) enable to filter 2D fields.
1010    
1011    checkpoint44e_pre,post
1012    o re-wrote convective adjustment to use pre-calculated weights
1013      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
1014      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
1015      Original calls to convect() still in place.
1016    
1017    chkpt44d_pre,post
1018    o added missing EXCLUDE_MONITOR flags
1019    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
1020      (incompatible typ in MIN/MAX expressions caused problems
1021      on IBM SP3)
1022    o in genmake added variable MAKEDEPEND
1023      plus resetting for case SunOS
1024    o added timer_stats.c routine for IBM SP3
1025    o removed variables in dynamics
1026    !!! I forgot to create tag chkpt44d_pre !!!
1027    !!! But chkpt44d_pre = chkpt44c_post    !!!
1028    
1029    o real fresh water flux implemented with non-linear free-surface.
1030    
1031    chkpt44c_pre,post
1032    o few fix (mask in shap_s2, EmPmR in external_field_load,
1033      USE_NATURAL_BCS in solve_for_P);
1034    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
1035    
1036    checkpoint44b_pre/_post
1037    o merge of relevant stuff from the ecco-branch:
1038      - genmake: removed $S64 overwrite for case SunOS
1039      - pkg/exf: update and corrections for field swapping and obcs
1040      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1041                  harmonized between ECCO and MITgcm
1042      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1043                      updated checkpointing_lev... lists for obcs
1044      - model/src: minor changes in forward_step, plot_field
1045                   added directive for divided adjoint in the_main_loop
1046      - pkg/mdsio: added mdsio_gl_slice
1047    
1048    o check parameters & config (chkpt44a_pre,post)
1049    o OBC and NonLin_FrSurf.
1050    
1051    checkpoint44
1052    o fix bug in mom_vi_del2uv
1053    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1054    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1055    o update AIM experiments (NCEP input files)
1056    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1057    o added some stuff for AD
1058    
1059    checkpoint43
1060    o added two new advection tests
1061    o added global 4x4 degree ocean test
1062    o added test of H&S94 with free surface on cube
1063    o some final mods for gradient check, adjoint,...
1064    
1065    checkpoint42
1066      Fixed AD-related problems:
1067    o Store directives up-to-date with re-arranged Adams-Bashforth
1068      (mainly thermodynamics.F)
1069    o New store directives for multi-dim. advection schemes
1070      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1071      * new common block and key passkey
1072      (mainly gad_advection.F)
1073    o Modified store directives for split of dynamics/thermodynamics
1074      for the case ALLOW_KPP
1075    o Cleaned argument list for timestep_tracer.F
1076    
1077    checkpoint41
1078    o re-formatted/added comments in prologues of key subroutines
1079      to work with protex
1080    
1081    checkpoint40
1082    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1083    o added FLT (floats) package from Arne along with demo. experiment
1084    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1085      implementation of forward-in-time forcing terms
1086    o more mods for non-linear free-surface including new variable
1087    o modified multi-dim method to work on cube
1088    o bug fix in KPP (from DM)
1089    
1090    checkpoint40pre9
1091    o added DST advection schemes
1092    o fix MPI bug on SGI's
1093    o modifications for non-linear free-surface
1094    o fixed conditionals for fixed flow/passive tracer only mode
1095    o added tension/strain form of stress tensor
1096    o changes to commenting of arguments for TAF/TAMC
1097    o added/updated many matlab scripts
1098    o added multi-dimensional advection method for tracers
1099      
1100    checkpoint40pre8
1101    o new package rw/
1102      Added method for dumping intermediate local arrays:
1103      mdsio_writetile - same as mdsio_writefield except works from inside
1104                        bi,bj loop
1105      mdsio_writelocal - same as mdsio_writetile except works for local
1106                         arrays
1107      write_local_r? - higher-level wrapper for mdsio_writelocal
1108      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1109      Example given at end of mom_vecinv.F that dumps some local arrays.
1110    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1111      control flux-form versus vector invariant code.
1112      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1113      or genmake -DISABLE ...
1114    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1115      (additional storing is now needed for case vecinv;
1116      currently nothing implemented to switch this storing off
1117      in case fluxform is used since no CPP flag available).
1118    
1119    checkpoint40pre7
1120    o bug fix in dynamics.F
1121      calc_viscosity called before k=1,Nr loop.
1122    o added some #ifdef's ALLOW_PASSIVE_TRACER
1123    o cleaned initialisations in ctrl_map_ini
1124      related to TAF
1125    
1126    checkpoint40pre6
1127    o split dynamics into thermodynamics & dynamics
1128    o corresponding split of calc_diffusivity into
1129      calc_diffusivity, calc_viscosity
1130      (kpp_calc_diff, kpp_calc_visc).
1131    o Added diffkr, kapgm to control variables
1132    o bug fix in gmredi_slope_limit for ldd97
1133    
1134    checkpoint40pre5
1135    o proper initialization of Adams-Bashforth time stepping
1136      + uses forward step for very first step of model (iter=0)
1137    o re-generated *all* output since almost all output is modified by this
1138      change (sorry but we've been putting this one off for about 2 years)
1139      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1140        *not* regenerated since they are already out of date and I don't
1141        want to create the impression that they are suddenly working.
1142    o removed KAP stuff for DEC's
1143    o modified/added many .cvsignore files in */code and */input
1144    o added new expt "solid-body.cs-32x32x1"
1145      + this uses an alternative form of ini_curvilinear_grid.F which
1146        is not necessarily any better than the current one...
1147    
1148    checkpoint40pre4
1149    o added re-initialisations of utrans,vtrans,rtrans in
1150      calc_common_factors which are crucial for TAF.
1151    o extended iMin,jMin range for calc_common_factors,
1152      calc_diffusivity
1153    o added option ALLOW_PASSIVE_TRACER
1154    o a few minor updates and fixes
1155    
1156    checkpoint40pre3
1157    o created calc_gtr1.F for gad package
1158    o split the_main_loop and re-introduced forward_step
1159    o some recomputations of nIter0 for TAMC
1160    
1161    checkpoint40pre2
1162    o Updated to latest branch of AJA, JMC
1163    o Added gradient check package
1164    o Added routines for passive tracer handling
1165    o Added carbon sequestration sensitivity experiment
1166    
1167    checkpoint39
1168     o Modifications and fixes to support TAMC
1169       (mainly missing or wrong directives)
1170     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1171       in addummy_in_stepping
1172     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1173     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1174     o Included following packages:
1175       cal: calendar
1176       exf: external forcing
1177       ecco: essential routines to control use of cal, exf
1178             (NB: this is not the full ECCO environment)
1179     o disabled some packages by default in genmake
1180    
1181    checkpoint38
1182     o see notes_c37_adj.txt
1183     o corrected wrong layer index in external_forcing_t
1184     o replaced the_main_loop/forward_step by the_main_loop
1185     o removed forceoutput from write_state
1186       (replaced criteria for initial/final state)
1187     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1188    
1189    checkpoint37
1190     o mdsio.F routine split and packaged in pkg/mdsio
1191       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1192        used unless genmake -disable=mdsio)
1193     o allow a more precise surface-geopotential gradient for the atmosphere
1194       taking into account the change in space of Alpha (=1/rho) at the surface.
1195     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1196       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1197     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1198       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1199       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1200     o Time-Average diagnostics defined as a pseudo package "timeave".
1201     o pickup files : old pickup (before c35) did not work with new code (c35
1202       and after) unless activating 2 commented lines in initialise-varia.
1203     o Non-Hydrostatic pickup file Pb fixed.
1204     o bug with Rigid-lid version (since c35) fixed.  
1205    
1206    checkpoint36
1207     o implement Crank-Nickelson barotropic time-stepping
1208     o recover Time-Average diagnostics
1209     o fix Pb in checkpoint (PR#19)
1210     o AIM become a standard package ; clean unused CPP_kees
1211    
1212    checkpoint35
1213     o subtantial rewrite of dynamics.f
1214     o allows staggered time-stepping
1215     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1216     o added bottom drag (linear + quadratic)
1217    
1218    checkpoint34
1219     o Modified exchange routines for correct reverse simulation.
1220     o Added verification output to comply with bug fix in impldiff.F
1221       as of c33 (exp2, natl_box).
1222     o Corrected store directives in dynamics.F
1223     o Corrected array boundaries in impldiff.F
1224     o Corrected array dimensions in gmredi.
1225       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1226     o Added routine GLOBAL_SUM_INT to global_sum.F
1227     o Added mdsio_gl.F for ECCO purposes.
1228    
1229    checkpoint33
1230     o Fixed bug in lower BC in impldiff.F
1231     o Fixed confusion about units of forcing arrays in FFIELDS.h
1232       namely Fu,Fv,Qnet,Qsw,EmPmR:
1233       - Removed verification/natl_box/code/external_fields_scale.F
1234         (did not differ from that in model/src)
1235       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1236         (see FFIELDS.h for description)
1237       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1238         kpp_calc.F and kpp_transport_t.F
1239       - Removed model/src/external_fields_scale.F and calls to it
1240       - verification/natl_box uses flux data with "atmospheric" sign so
1241         a special version of external_fields_load.F is used to
1242         change the data as it's read in. This way, the arrays
1243         have the right units and signs at all times tha a user could
1244         possibly use them.
1245     o Corrected genmake to delete a temporary file during configuration
1246    
1247    checkpoint32
1248     o Scaling of forcing fields moved from external_forcing.F to
1249       external_fields_scale.F, called directly after loading fields.
1250     o Surface relaxation terms added to surface tendency fields in
1251       extra subroutine.
1252     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1253       fields.
1254     o Changes in GMRedi to comply with packaging structure.
1255     o Modifications and bug fixes in KPP package.
1256     o Verification experiment for KPP added (verification/nat_box/)
1257    
1258    checkpoint31
1259     o Packages interface brought in line with defined standard
1260       -> new routines packages_...F
1261       -> changes in initialise_fixed.F, initialise_varia.F
1262       -> enables initialisation interface for ECCO package
1263     o Rescaling of external forcing fields immediately after read
1264       (removed from external_forcing.F)
1265       -> new: surface_fields_scale.F
1266       -> affects ini_foorcing.F, external_fields_load.F
1267     o Computation of surface tendencies before tendency updates.
1268       -> new: external_forcing_surf.F
1269     o Change of variable names useGMRedi, useKPP, useECCO
1270     o Further changes in dynamics.F, impldiff.F for TAMC
1271     o Tested for experiments 0, 2, 4.
1272       - not yet tested for GMRedi.
1273       - not yet tested for KPP.
1274    
1275    checkpoint30
1276     o Updates for OBCs
1277     o New experiment for test OBCs (internal_wave)
1278     o New output.txt in verification/exp4/results/
1279     o Updates for KPP: calculation of viscosity corrected, new variables
1280       kpp_dumpFreq and kpp_taveFreq
1281     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1282       and entry for T90 in genmake
1283    
1284    checkpoint29
1285     o packaged KPP and GM/Redi
1286    
1287    checkpoint28
1288     o Corrected initialization of hFacMin for difference vertical coordinates
1289     o Modified calculation of partial cell thickness to more robust algorithm
1290     o config_summary.F: replaced write_1D_... by write_0D_...
1291       read_write.F: added subroutines write_0D_...
1292     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1293       included some initialisations required for TAMC.
1294     o routine calc_isoslopes: modified sqrt computation to make it
1295       differentiable for zero argument.
1296     o routines dynamics, impldiff:
1297       included store directives and tape key computations required for TAMC.
1298     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1299    
1300    checkpoint27
1301     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1302       formulation works properly with variable resolution.
1303     o restructured the calling tree between the_model_main() and dynamics()
1304     o split initialise() into initialise_fixed() and initialise_varia()
1305     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1306       in new routine ini_psurf()
1307    
1308    checkpoint26
1309     o moved some #ifdef in optional routines to encompass everything
1310       except the argument declarations. This was using up some memory.
1311     o fixed macros like _ADT to work with both versions of Linux cpp
1312     o cleaned up some unused and uninitialized variables
1313       (helps when debugging with strict compile options)
1314     o split up CPP_EEOPTIONS.h into options and macros
1315       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1316     o patch for 2 processor JAM mode
1317    
1318    checkpoint25
1319     o updates for OBCs and NH
1320     o dramatically reduced memory usage
1321     o added "JAM" routines for use on Artic network
1322     o parameterization of convection by implicit vertical diffusion
1323     o added a diagnostic of convective index
1324     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1325       (this is was partly for OBCs and NH but also in anticipation of
1326        an explicit free-surface option)
1327     o initial state input files for U and V
1328    
1329    checkpoint24
1330     o Removed some spurious "REAL"s
1331     o Updated KPP to latest version from JPL
1332     o Added a COS(latitude) in horizontal viscosity
1333    
1334    checkpoint23
1335     o Added del^4 diffusion for salt and temperature
1336     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1337    
1338    checkpoint22
1339     o Made many small changes: implicit none, format(i5), etc...
1340     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1341    
1342    checkpoint21
1343     o Introduced new I/O package that supports direct-access records (mdsio.F)
1344     o Split-up mid-level I/O routines
1345     o Updated input data for experiments 0,1,2,4 and 5
1346     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1347    
1348    checkpoint20
1349     o Tidied up open-boundaries some more
1350     o Added non-hydrostatic code
1351     o Fixed some input data
1352     o Modified MPI start-up to work in "coupled" context.
1353    
1354    checkpoint19
1355     o Tidied up directory structure for verification experiments.
1356     o Added new code for open boundaries.
1357     o Corrected advective terms near boundaries.
1358     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1359     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1360     o Split default parameters out of ini_parms.F into set_defaults.F.
1361    
1362    checkpoint18
1363     o Further changes for optional code generation with
1364       CPP - ugh!
1365    
1366    checkpoint17
1367     o Beginning to incorporating modularity
1368       for supporting atmos. and ocean configs.
1369     o Small changes for TAMC complinace
1370     o New ultra simple test case. Barotropic box
1371       configuration "exp0".
1372    
1373    checkpoint16
1374     o Minor changes to exchange routines to support
1375       accumulation in reverse mode. Adjoint of an
1376       assignment is an addition.
1377     o Changes to support compilation by TAMC (LR(1)
1378       syntax) and by g77 under Linux ( 72 character
1379       limit ).
1380    
1381    checkpoint15
1382     Rewrote exchange routines to allow
1383     o General tile <-> tile connectivity.
1384     o TAMC reverse mode flag ( is this really needed? )
1385     o Variable width overlap and exchange region widths.
1386     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1387       shmput/shmget, VIA, SYSV shmem and every other cool
1388       communication method.
1389    
1390    checkpoint14
1391     Consistent isomorphism chages made. These allow dynamical core
1392     to support both pressure and meters as a vertical coordinate.
1393    
1394    checkpoint13
1395     Release which corrects global_max problem and a couple
1396     of KGM time-averaging diagnostic errors. Also contains
1397     a double-gyre experiment setup as well as the baseline
1398     4 degree global template. The double gyre template is
1399     organised to allow it to be applied automatically to
1400     the baseline configuration.
1401    
1402    branch-point-rdot
1403     A few tidy-ups have been made bt the real point of this
1404     check-point (excuse the pun) is to allow a branch to be
1405     made for the purposes of adding the rDot alterations.
1406     I don't want to commit the rDot to the main-trunk until
1407     we've actually tested it...
1408    
1409    checkpoint12
1410     Tidy up and added generic genmake script (formerly
1411     configure script).
1412     Released to testers.
1413    
1414    checkpoint11
1415     Re-arranged initialise() and introduced ini_vertical_grid()
1416     and ini_masks_etc().
1417    
1418    checkpoint10
1419     Introduced the configure script.
1420     Separated out the diags package.
1421     Added template for writing time-averages of tile/intermediate quantities.
1422     Updated SIZE.h in exp2 and made the data big-endian.
1423    
1424  checkpoint9  checkpoint9
1425   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
1426   General tidy-up.   General tidy-up.

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