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revision 1.41 by heimbach, Fri Jul 13 18:08:14 2001 UTC revision 1.186 by edhill, Thu Oct 16 16:29:58 2003 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o added an include barrier to the default CPP_OPTIONS.h and
7      removed the #include "PACKAGES_CONFIG.h" from it
8    
9    checkpoint51j_post
10    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
11    o adjusted some flow directives (dynamics, thermodynamics)
12    o added cubed-sphere case to test cost function
13    o heckpoint_lev?_directives.h now include
14      pkg-specific directives, whenever those are enabled.
15    o Moving pkg-specific flow directives to corresponding pkg
16      Moving pkg-specific differentiation list to corresponding pkg
17      Moving pkg-specific checkpoint-lev storing to corresponding pkg
18      ---> conventions are
19           - pkg_ad.flow
20           - pkg_ad_diff.list
21           - pkg_ad_check_lev?_dir.h
22    
23    checkpoint51i_post
24    o merge of the branch-genmake2
25      - knowingly breaks the older genmake
26      - automatic generation of all ALLOW_${PKG_NAME} defines
27      - new testreport supersedes older testscript
28    o large number of package inclusion and header cleanups
29    checkpoint51i_pre
30    
31    o new output for adjoin of global ocean vector invariant
32    o fix for checkpoint of thermodynamic seaice and bulk_force
33    o Steph gchem various cleanups
34    
35    checkpoint 51h_pre
36    o fixed some single quotes
37    o modify gchem pkg to be more versatile
38    o modifications to clean up dic pkg
39    o add pkg/cfc
40    
41    checkpoint51g_post
42    o provide links for ARPACK and ADM*TLM
43    o start removing verification/vero/
44    o update AD-related stuff
45      (in particular some IF-statements in model/src/ routines)
46    o adding to verification/global_ocean.90x40x15/ adjoint of
47      vector invariant setup
48    
49    checkpoint51f_post
50    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
51    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
52      of tracer Green's fucntions for ocean inversion project.
53    
54    checkpoint51f_pre
55    o Added on-the-fly spatial interpolation capability
56        "USE_EXF_INTERPOLATION" to pkg/exf.
57      - This is a temporary Cartesian-grid hack until
58        the super-duper ESMF coupler becomes available.
59      - See verification/global_with_exf/README for usage example.
60      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
61        flags and modified pkg/seaice accordingly.
62    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
63        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
64        non-local transport term.
65    
66    checkpoint51e_post
67    o pkg/mom_vecinv:
68      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
69      - add time-ave diagnostic of vorticity advection.
70    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
71    o atmospheric geopotential: - include water vapor effect;
72                                - use p^kappa in p* scaling.
73    o land pkg: read initial state from files.
74    o AIM : add stratospheric drag in the upper level
75    
76    checkpoint51d_post
77    o change function ILNBLNK (=> last non-blank char.) to return zero
78      (instead of the string length) when the string. char is empty
79    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
80    o modif's to restore TAMC compatibility
81      - avoid "_d" constructs in PARAMETER declarations
82      - avoid interrupting lines by comment lines
83    o Use cluster local disks for purely local I/O
84      vs. globally visible disks needed for ctrl stuff
85      (merged from ecco-branch)
86      - new active_file_loc... and mdsio_..._loc routines
87      - affected packages: autodiff, ctrl, grdchk, mdsio
88    
89    checkpoint51c_post
90    o introducing integer flag debugLevel
91      - debLevZero: suppress all output
92      - debLevA: standard
93      - debLevB: equivalent to current debugMode=.TRUE.
94    o introducing pathname variable mdsioLocalDir for mdsio
95      that can be specified at runtime
96      (relevant for cluster I/O to local disk)
97    `
98    >>>checkpoint51b_post
99    adjoint of ptracers
100    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
101    o extended state in checkpoint_lev?, etc.
102    o alternative ctrl/cost with tr1 or ptracer
103    o new comlev1_bibj_ptracers
104    o new ptracers.flow
105    o made ptracers_forcing same as external_forcing_s
106    o added verification for adjoint with ptracers
107      - adm. grdchk fail so far
108      - tlm. grdchk OK
109      - checked tapelev/comlev recomputations: OK
110    <<<checkpoint51b_pre
111    
112    checkpoint51a_post
113    o added code for biogeochemistry package
114      - new pkgs: dic, gchem
115      - new subroutine in ptracers
116    o modify code for biogeo packages
117      - in model/src and pkg/ptracers
118    
119    checkpoint51
120    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
121      - autodiff, ctrl, exf, grdchk, seaice
122      kept separate packages
123      - cost, ecco, obcs
124    o updating verification/internal_wave, verification/lab_sea
125      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
126    
127    checkpoint50i_post
128    o Preparing next differentiable checkpoint and sync
129      of MAIN vs. ecco-branch
130      - 1st step: this one is differentiable
131      - 2nd step: next(! not this) checkpoint will have updated packages
132                  from ecco-branch)
133    
134    checkpoint50h_post
135    o new package "land": provide surface BC for AIM.
136    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
137    o AIM: use true log-P extrapolation for near surface temp (= as in
138        F.Molteni paper) ; update aim.5l_cs output.
139    o New variable in PARM03 for more flexible pickups
140    o somewhat cleaned package initialisation sequence for
141      ctrl/ cost/ ecco/ in packages_... routines
142    
143    checkpoint50g_post
144    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
145      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
146      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
147        made the default because of faster convergence than ADI
148    
149    checkpoint50f_post
150    o exf totally restructured
151      - replaced all exf_set_ routines by one generic exf_set_gen.F
152        and made sure it's still differentiable
153      - split exf_getffields.F into new exf_bulkformulae.F
154      - exf_inscal_/exf_outscal_ suffixes consistent with field names
155      - updated adjoint/makefile and relevant verif. accordingly
156    
157    checkpoint50f_pre
158     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
159          + change Evap over land. (update aim.5l_cs output)
160     o added missing .cvsignores and made uniform across expts
161     o changed configuration of tidal_basin_2d expt
162     o added pkg/debug functions for tracing code in fatal crashes
163     o tidied pkg/monitor to use MONITOR_OPTIONS.h
164     o new fn in pkg/monitor to stop model if solution grows too big
165     o removed lots of single quotes from comments
166    
167    checkpoint50e_post
168    o make KPP work with PTRACERS
169     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
170       nearly a copy of kpp_transport_s
171     - there is no analogue to SurfaceTendencyS, so I have to use
172       gPtr(of the surface layer) instead
173    o add a new platform SunFire+mpi (SunFire 15000) to genmake
174    checkpoint50e_pre
175    
176    checkpoint50d_post
177    o change kpp output from multiple-record state files to single-record state
178      files analogous to write_state.F
179    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
180      analogous to the cg2d-related output.
181    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
182      so that writing to internal file fn (with length 512) fails.
183    checkpoint50d_pre
184    
185    checkpoint50c_post
186    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
187    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
188    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
189    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
190    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
191    
192    checkpoint50c_pre
193    Merging from release1_p13:
194    o bug fix for pkg/seaice dynamic solver
195    o Added SEAICE_initialHEFF to pkg/seaice
196    
197    checkpoint50b_post
198    o store u*,v* in gU,V instead of in guNm1,gvNm1
199    o in order to put the momForcing out of the Adams-Bashforth:
200      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
201      to timestep.F
202    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
203    o re-generate output for highly sensitive test-exp:
204       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
205    
206    checkpoint50b_pre
207    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
208    o corrected CPP option mismatch in exf_Bulk... functions for case
209      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
210    
211    checkpoint50a_post
212    o Bug fix for merging between c50 and KPP.
213      ikey was passed from thermodynamics to kpp_calc via
214      common block rather than being recomputed in kpp_calc,
215      in contradiction with new key itdkey.
216      New key ikppkey created, and tamc.h headers updated.
217    
218    checkpoint50
219    - 2nd step of merge with ecco-branch:
220      merge changes in ecco-branch back into main trunk
221    - bug fix in find_alpha
222    - more storing in gmredi_calc_tensor.F, kpp_routines.F
223    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
224    - merged some sliced AD support routines
225    
226    checkpoint49
227    merged from ecco-branch:
228    o exf:
229      - Enable initialisation of forcing fields to constant
230        (runtime) values.
231      - in exf_getffields.F
232        Reduce i-/j-loop to interior domain, discarding overlaps.
233        That also fixes wrong TAF-key computations for key_1, key_2
234        with bulf formulae.
235      - exf_init.F modify #ifdef for exf_init_evap
236      - exf_getffieldrec.F, ctrl_getrec.F
237        The following INT-usages are not safe:
238          fldsecs  = int(fldsecs/fldperiod)*fldperiod
239          fldcount = int(fldsecs/fldperiod) + 1
240        and were modified.
241    o autodiff: checkpoint_lev...
242      - updated storing for bulk formulae (some arrays were missing)
243      - added state for seaice package
244      - synchronized with main branch
245    o DIVA:
246      Modif.s in
247      - the_main_loop.F
248      - the_model_main.F
249      and added cost_final_restore.F cost_final_store.F
250      o With these changes, it is possible to fully separate
251        the first forward run to compute the cost function (mdthe_main_loop)
252        and adjoint runs over individual DIVA intervals (adthe_main_loop)
253        into separate model executions.
254        This enables better tuning of DIVA to given queue sizes.
255      o Loss of cost function value in consecutive DIVA runs is
256        fixed by storing to 'costfinal' file.
257      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
258        beginning/end of adjoint integration is accounted for.
259      The current changes apply to TAF-1.4.26.
260      TAF has one remaining bug, requiring one manual change
261      (see MITgcm manual).
262    o cal: synchronized between MAIN and ecco-branch
263    
264    checkpoint48i_post
265    o Changes to restore differentiability of code w.r.t. previous tag
266      (mostly adding new routines to make list and replacing
267      pressure by totPhiHyd).
268    o Updated and merged grdchk package
269      - has both ADM and TLM checks
270      - works for single- and multi-proc.
271      - output cleaned
272      - worked successfully for parallel DIVA
273    o genmake:
274      - Adding -platform=SP4
275      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
276    o Modif. for DIVA:
277      ctrl_unpack should not be called in intermediate DIVA interval.
278      (similar thing would apply for active files such as
279      tbar, sbar, psbar, which should not be reinitialised;
280      only relevant for ecco-branch)
281    
282    checkpoint48h_post
283    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
284    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
285    o Added SEAICE_initialHEFF to pkg/seaice
286    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
287    
288    checkpoint48g_post
289    --- EOS:
290    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
291      store total Potential in totPhyHyd for diagnostics & EOS.
292    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
293    --- Pressure/geopotential gradient:
294    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
295    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
296      ( changes results of global_ocean_pressure )
297    o NLFS + z-coord.: add eta*Rho' contribution.
298    o accurate phiHyd when using interface-W at the middle between 2 centers
299     ( changes results of ideal_2D_oce )
300    o includes r* 2nd term in potential gradient.
301    
302    checkpoint48f_post
303    Merging from release1_p12:
304    o Modifications for using pkg/exf with pkg/seaice
305      - improved description of the various forcing configurations
306      - added basic radiation bulk formulae to pkg/exf
307      - units/sign fix for evap computation in exf_getffields.F
308      - updated verification/global_with_exf/results/output.txt
309    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
310      (SBO) core products, including oceanic mass, center-of-mass,
311      angular, and bottom pressure (see pkg/sbo/README.sbo).
312    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
313      to avoid negative values in shallow regions.
314      - updated verification/natl_box/results/output.txt
315      - updated verification/lab_sea/results/output.txt
316    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
317    o Added useSingleCpuIO option (see PARAMS.h).
318    o Updated useSingleCpuIO option in mdsio_writefield.F to
319      work with multi-field files, e.g., for single-file pickup.
320    o pkg/seaice:
321      - bug fix in growth.F: QNET for no shortwave case
322      - added HeffFile for specifying initial sea-ice thickness
323      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
324    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
325      kpp_transport_t.F, forward_step.F, and the_main_loop.F
326    o pkg/seaice:
327      - adjoint-friendly modifications
328      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
329    
330    checkpoint48e_post
331    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
332    o dynamics: change definition of computational domain & adapt mom_fluxform
333      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
334    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
335        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
336        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
337        global_ocean.90x40x15 global_with_exf global_ocean_pressure
338        inverted_barometer solid-body.cs-32x32x1
339      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
340    
341    checkpoint48d_post
342    o in preparation for r*:
343     a) use pre-computed gradient of hydrostatic potential:
344        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
345     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
346        => affects results of glob_oce_pressure (different truncation error)  
347      update output.txt of ideal_2D_oce & global_ocean_pressure
348    
349    checkpoint48d_pre
350    o in preparation for r*:
351      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
352      pass the 2 comp. of the grad. as arguments to momentum S/R.
353      but for the moment, only used if it does not change the results.
354    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
355    
356    checkpoint48c_post
357    Modifications in treatment of initial flux forcing controls
358    to avoid extra storing of flux fields.
359    
360    checkpoint48c_pre
361    o Added tidal_basin_2d experiment (currently 1D!)
362    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
363    
364    checkpoint48b_post
365    o r* coordinate added in #ifdef NONLIN_FRSURF block.
366     (modification to pressure gradient not yet implemented)
367    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
368      (for U & V) that are used for vertical advection of momentum.
369    
370    checkpoint48a_post
371    o In preparation for r*, use temp. array to compute vertical transport
372       in flux-form momentum pkg. => change results of few test-exp.
373      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
374                        lab_sea, natl_box & plume_on_slope
375    
376    checkpoint48
377    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
378    
379    checkpoint47j_post
380    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
381    o moved adexch from forward_step to addummy_in_stepping
382    o added exch in ctrl_map_...
383    o aveFreq.=0. at end of cost_final to avoid overwrite in
384      reverse checkpointing loop
385    o Yet more changes in gmredi:
386      * adgmredi_calc_tensor
387        avoiding all recomputation of gmredi_slope_limit
388      * adgmredi_x/y/rtransport
389        added flag for excessive storing to avoid recomp. of
390        u/v/rtans, dTdx/y/z
391        -> this is not really necessary and very memory-consuming
392      * adgmredi_slope_psi:
393        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
394      * gmredi_slope_limit
395        re-activated full calculation of taperfct for case 'ac02'
396    o updating verification/ adjoints of carbon, global_ocean.90x40x15
397    
398    checkpoint47i_post
399    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
400    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
401      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
402    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
403    o gmredi: fix few bugs.
404    
405    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
406    This will be a good checkpoint to plug into the ecco-branch.
407    o few modif.'s to get latest version adjointed
408      (mainly kick out code in ini_linear_phisurf)
409    o modif's to run adjoint with exactConserv
410    o case GM_BOLUS_ADVEC should be cleaned
411      S/R gmredi_slope_psi should be cleaned
412    o verification/carbon now has exactConserv=.TRUE.
413    
414    checkpoint47g_post
415    o time-average AIM output: becomes independent from statvars time-average
416      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
417    o After TAF bug fix:
418      Tested adjoint of gmredi package.
419      Tests were done with checkpoint47 rather than with latest
420      checkpoint47f_post since the latter is broken for the adjoint
421      verification/carbon/ contains both ADM and TLM gradient checks.
422    Here they are, before they get changed/lost/stolen.
423    Mostly modif.'s to fix numerical sensitivities.
424    Gradient checks OK for
425    - GM_taper_scheme:
426      * clipping
427      * ac02
428      * linear
429      * glw91
430      * dm95
431      * ldd97
432    - GMREDI_OPTIONS:
433      * GM_VISBECK_VARIABLE_K
434      * GM_NON_UNITY_DIAGONAL
435      * GM_EXTRA_DIAGONAL
436      * GM_BOLUS_ADVEC
437    in conjunction with data.gmredi parameters to be checked in
438    in a few minutes under verification/carbon/code/
439    
440    checkpoint47f_post
441    Merging from release1_p10:
442    o modifications for using pkg/exf with pkg/seaice
443      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
444        and SEAICE_EXTERNAL_FLUXES
445      - pkg/exf CPP options EXF_READ_EVAP and
446        EXF_NO_BULK_COMPUTATIONS
447      - usage examples are Experiments 8 and 9 in
448        verification/lab_sea/README
449      - verification/lab_sea default experiment now uses
450        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
451    
452    checkpoint47e_post
453    o created a tag prior to creating a branch
454    
455    checkpoint47d_post
456    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
457      at the bottom boundary had an erroneous half slip boundary condition
458    o added bottom drag and no slip boundary condition capabilities to
459      oceanic pressure coordinates code
460    o added new verification experiment global_ocean_pressure, this experiment is
461      also described in the tutorial section of the manual
462    checkpoint47d_pre
463    
464    checkpoint47c_post
465    o Added a verification experiment for a global cubed-sphere ocean run
466      -  verification/global_ocean.cubed32x32x30
467      -  uses pkg/therm_seaice and pkg/bulk_forcing
468    
469    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
470    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
471      when using P-coordinate; only implemented for atmospheric config.
472    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
473      NOTES: requires option NONLIN_FRSURF to be "#define".
474    o update advect_xz/results/output.txt (left from checkpoint44g_post)
475    
476    checkpoint47b_post
477    Merging from release1_p9:
478    o pkg/seaice
479      - removed GOTO's and added taf directives
480      - double precision constants to reduce the g77 (Linux)
481        to F77 (SGI) differences reported in release1_p8
482    o tools/genmake
483      - added SGI options
484    o verification/testscript
485      - updated to that of checkpoint47a_post
486    o verification/global_ocean.90x40x15/input/eedata
487      - modified for SGI f77 compatibility
488    o verification/lab_sea
489      - added description of sea-ice model
490      - added missing matlab routines
491      - added test of thermodynamics parallelization
492    
493    checkpoint47a_post
494    o new pkg: aim_v23
495     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
496       for now, keep the same surface forcing as before.
497     - Part-Cell implemented into AIM; check that Heat & Water are conserved
498     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
499     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
500    o add diagnostic of surface correction term in monitor output
501    
502    o bulk_force and therm_seaice
503    - Two packages:  bulk_force (Bulk forcing)
504      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
505    - Earlier integration from Stephaine Dutkiewicz
506      and Patrick Heimbach.
507    - Two ifdef statements for compile time,
508       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
509    
510    checkpoint47
511    differentiable version of checkpoint46n_post
512    o bug fix in quasihydrostaticterms
513    o * "clean" adjoint code (in terms of extensive recomputations)
514        can now be obtained for all GMREDI options (i.e. for
515        - GM_VISBECK_VARIABLE_K
516        - GM_NON_UNITY_DIAGONAL
517        - GM_EXTRA_DIAGONAL
518        - GM_BOLUS_ADVEC )
519      * However, wrong gradient check problem remains unsolved.
520      * New CPP options have been introduced for different
521        tapering schemes
522    o external_fields_load now part of differentiation list
523    o pressure needs multiple storing;
524      would be nice to have store_pressure at beginning or
525      end of forward_step, e.g. by having phiHyd global (5-dim.)
526      (NB: pressure is needed for certain cases in find_rho,
527      which is also invoked through convective_adjustment).
528    o recomputations in find_rho for cases
529     'JMD95'/'UNESCO' or 'MDJWF' are OK.
530    o #define ATMOSPHERIC_LOADING should be differentiable
531    o ini_forcing shifted to begining of initialise_varia
532    o Incorporating QNVS line search routines into MITgcm
533      (this is separate code, and therefore not under pkg)
534      lsopt/, optim/
535    o Updated verification/carbon/
536      - #define GM_VISBECK_VARIABLE_K
537      - GM_taper_scheme    = 'ldd97'    
538    
539    checkpoint46n_post
540    Merging from release1_p8:
541    o verification/natl_box:
542      updating new external_fields_load routine
543    o New package: pkg/seaice
544      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
545      The sea-ice code is based on Hibler (1979-1980).
546      Two sea-ice dynamic solvers, ADI and LSR, are included.
547      In addition to computing prognostic sea-ice variables and diagnosing
548      the forcing/external data fields that drive the ocean model,
549      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
550      The implied surface heat flux is then stored in variable
551      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
552      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
553      non-local transport term.  Because this call precedes model
554      thermodynamics, temperature under sea-ice may not be "exactly" at
555      the freezing point by the time theta is dumped or time-averaged.
556      N.B.: fairly large differences in accuracy occur across
557            different platforms/compilers; comparison between
558            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
559            generated output gives:
560       T           S           U           V
561      C D M    c        m  s        m  s        m  s        m  s
562      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
563      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
564      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
565    
566      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
567    o GAD:
568      - generated new common blocks to account for call of
569        same gad routines with differing traceridentities
570        (needed to modify tracerIdentity indices in GAD.h)
571      - generated separate common blocks for case useCubedSphereExchange
572        (Department of Futurology)
573      - parameter lists to gmredi_?transport: added tracerIdentity
574      - added new key indices to tamc.h
575    o external_fields_load:
576      - added this routine to TAF list
577      - needed to make some common blocks global and additional storing
578        along the same lines as exf package (checkpoint_lev?_directives.h)
579    o exf:
580      updated external forcing package
581      - bug fixes carried over from ecco-branch
582        (missing OBCS_OPTIONS.h in two routines)
583      - enable easy to use "no forcing".
584      - added exf I/O for atmospheric loading
585      - added exf I/O for runoff data
586      - transfered scaling between exf <-> MITgcm to exf namelist
587    o Adding new verification experiment global_with_exf.
588      This verification experiment is almost identical to the
589      global_ocean.90x40x15 experiment, except that it uses
590      the exf (and cal) package instead of the
591      external_fields_load routine (cf README file).
592    
593    checkpoint46m_post
594    o modified testscript to return -- when there are no lines of "%MON" output
595    o added new flag "quasiHydrostatic" for QH mode
596      and new routine quasihydrostaticterms()
597    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
598      New routine: mom_u_coriolis_nh()
599    o fixed sign of non-hydrostatic metric terms in u and v equations.
600      Depend on correct sign of gravitySign.
601    o added work.pc* to .cvsignore in aim directories using ifc
602    o introduced flag for controllin non-hydrostatic metric terms
603    o removed gravitySign from PARM04
604    o switched to g77/ifc from pgf77 in aim experiments
605    
606    checkpoint46l_post
607    o made convective adjustment work with pressure coordinates:
608     - changed the direction of k-loop in convective_adjustment.F for the
609       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
610     - adjusted the reference pressure k-index in convective_adjustment.F
611     - adjusted the convection condition in convect.F (in analogy to
612       calc_ivdc.F)
613     - convective_adjustment no longer computes anything on the halos
614     - removed the warnings about negative salinity from find_rho.F and
615       find_alpha.F; instead the new routine look_for_neg_salinity, called
616       at the beginning of find_rho, find_alpha, and find_beta, does a
617       check of the entire slice, if CPP-option
618       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
619    checkpoint46l_pre
620    
621    checkpoint46k_post
622    o fixed the verification/global_ocean.90x40x15 experiment:
623     - new bathymetry (the world according to A., JMC, and M.)
624     - new initial fields and forcing fields (*.bin files)
625     - new POLY3.COEFFS (for the next release one should switch to a full
626       equation of state: JMD95P or MDJWF)
627     - fixed several errors and redundancies in the data file
628     - experiment uses looped cells
629     - added matlab directory with diagnostic scripts for plotting of output
630    
631    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
632     - read AIM physics parameters from a file (data.aimphys)
633     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
634    
635    checkpoint46j_post
636    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
637    o move wVel computation at the end of the time step, in S/R integr_continuity
638    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
639    o update timeave pkg for wVel diagnostic.
640    checkpoint46j_pre
641    
642    checkpoint46i_post
643    o Clean up AIM package (and keep the results unchanged):
644      include CPP_OPTION and use IMPLICT NONE in all routines ;
645      declare all the variables _RL ; use _d 0 for all numerical constants.
646      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
647    
648    checkpoint46h_post
649    o cleaned up the use of rhoNil and rhoConst.
650      - rhoNil should only appear in the LINEAR equation of state, everywhere
651        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
652        and the dynamical equations are all divided by rhoConst
653    o introduced new parameter rhoConstFresh, a reference density of fresh
654      water, to remove the fresh water flux's dependence on rhoNil. The default
655      value is 999.8 kg/m^3
656    o cleanup up external_forcing.F and external_forcing_surf.F
657      - can now be used by both OCEANIC and OCEANICP
658    checkpoint46h_pre
659    
660     Added code to convert surface volume flux (fresh water) into
661     a mass flux when using P coordinates in the ocean (OCEANICP).
662     Note: It assumes you have set rho0=rhoConst=density of fresh water.
663    
664    checkpoint46g_post
665    o Include a new diagnostic variable phiHydLow for the ocean model
666      - in z-coordinates, it is the bottom pressure anomaly
667      - in p-coordinates, it is the sea surface elevation
668      - in both cases, these variable have global drift, reflecting the mass
669        drift in z-coordinates and the volume drift in p-coordinates
670      - included time averaging for phiHydLow, be aware of the drift!
671    o depth-dependent computation of Bo_surf for pressure coordinates
672      in the ocean (buoyancyRelation='OCEANICP')
673      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
674        Theta, Salinity, and Pressure in the parameter list. This routine is
675        presently contained in find_rho.F. This routine does not give the
676        correct density for 'POLY3', which would be a z-dependent reference
677        density.
678    o cleaned up find_rho
679      - removed obsolete 'eqn' from the parameter list.
680    o added two new verification experiments: gop and goz
681      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
682    checkpoint46g_pre
683    
684    checkpoint46f_post
685    o Enable tangent linear (forward mode) gradient checks:
686      - extended active file handling to g_... files
687      - added TANGENT_SIMULATION to theSimulationMode
688      - extended grdchk package accordingly
689    o added tangent linear setup in verification/carbon/code_ftl
690    o added adjoint setup in verification/front_relax/code_ad
691    
692    checkpoint46e_post
693    o Added new equation of state -> MDJWF
694      - EOS of McDougall et al., 2002, JAOT, submitted
695      - caveat: the equation of state is only valid for a smaller (more
696        realistic?) range of values than JMD95P/Z and UNESCO
697      - added masks to the calculation of pressure in store_pressure
698      - added more check values for density in check_eos (ini_eos.F), some of
699        the old check values are out of the range of the MDJWF-eos, so don't
700        expect perfect matches for those
701    checkpoint46e_pre
702    
703    checkpoint46d_post
704    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
705      'OCEANICP', also initialised field pressure correctly in ini_eos in the
706      case of pressure coordinates. eosType='JMD95Z' in
707      combination with buoyancyRelation='OCEANICP' now causes an error.
708    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
709      in find_alpha/beta.
710    checkpoint46d_pre
711    
712    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
713      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
714    
715    checkpoint46c_post
716    o Changes necessary for ocean in p-coordinates
717     -  Added new buoyancy relation = 'OCEANICP'
718     -  Added new parameters = gravitySign (this used to be contained inside
719        the factor dRdZ which I added when we first switched to R coordinates).
720     X GM/Redi is not compatible (yet)
721     X bottom drag and no-slip need to be debugged.
722    checkpoint46c_pre
723    
724    checkpoint46b_post
725    o Added new equation of state -> JMD95Z and JMD95P
726      - EOS of Jackett and McDougall, 1995, JAOT
727      - moved all EOS parameters into EOS.h
728      - new routines ini_eos.F, store_pressure.F
729    o Added UNESCO EOS, but not recommended because it requires
730      in-situ temperature (see JMD95)
731    o Modified formatting for knudsen2.f in utils/knudsen2 and added
732      unesco.f to be used with POLY3
733    checkpoint46b_pre
734    
735    checkpoint46a_post
736    o Added (atmospheric) pressure loading
737      - new field in FFIELDS.h, etc...
738      - new cpp flag ATMOSPHERIC_LOADING
739    o Changed hFacC to _hFacC in calc_phi_hyd.F
740    o Added SHORTWAVE_HEATING to some files for consistency
741    checkpoint46a_pre
742    
743    checkpoint46
744    further merges from release1_p5
745    o new ctrl package
746      - adopted from ECCO environment to enable optimization
747      - added Eliassen Palm fluxes to controls
748    o added Eliassen Palm flux controls to gradient check package
749    o cost package
750      - Compatible with new ctrl package
751      - added Eliassen Palm cost hooks
752      - modif's of existing cost functions
753    o Adjoint-related bug fixes in kpp:
754      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
755      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
756    o autodiff package
757      - flow directives:
758        + new for S/R do_the_model_io
759        + enhanced for S/R checkpoint
760        + new gmredi.flow
761      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
762        disable adcommon.h/g_common.h by default.
763      - fixed problem for adjoint of global_max
764    o modified verification/carbon/
765    o New setup for adjoint of global_ocean
766    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
767    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
768    o incorporated hooks for sponge layer code (external_forcing.F)
769    
770    checkpoint45d_post
771    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
772    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
773      (affects plume_on_slope "cg2d" output)
774    o add new parameter deltaTfreesurf for free-surface time stepping
775    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
776    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
777    o change phiMin in exp1 (to agree with documentation)
778    o add new flags:
779     - T,S forcing inside/outside Adams-Bashforth
780     - turn off temp,salt advection and/or forcing
781     - for each tracer, define internal flag for multiDimAdvection & A-B
782    o monitor: change definition of KE to check conservation of Energy
783    
784    checkpoint45c_post
785    o Removed f90 comments ("!")
786    o Modified initialisations to enable exf package for MITgcm
787      (without invoking ECCO_PACKAGE).
788    o modifications to gradient check package (Martin Losch)
789      - enable centered differences
790      - modified format of standard output
791    
792    checkpoint45b_post
793    o cleaned exchange calls in cg2d
794    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
795    o included CPP option SINGLE_LAYER_MODE in thermodynamics
796      to configure barotropic setup (Martin Losch)
797    o moved some initialisations within bi,bj loop in dynamics
798      (TAF flow dependency)
799    o in initialise_varia, moved call packages_init_variables
800      before convective_adjustment_init
801      (corresponding adjustment of TAF tape initialisation).
802    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
803    
804    checkpoint45a_post
805    o compute Rho over the whole domain (extend iMin,jMin indices)
806    o specific exchange for X-slice domain (case Ny=1)
807    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
808    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
809    
810    checkpoint44h_post = checkpoint45
811    o Fix to restore differentiability:
812      place at which packages_init_variables is called in
813      initialise_varia is crucial for reverse control flow.
814    o modifications in GMRedi to enable stable adjoint
815      (corresponding modif's in thermodynamics, dynamics)
816    o added missing hook for sponge layer code in external_forcing
817    o modified test cost functions
818    o storing in gad_advection (plus removal of write(0,*)!
819    o missing headers TR1.h added in convective_adjustment routines
820    o errorMessageUnit set non-equal zero in eeboot
821      (conflict on some platforms, e.g. IBM SP3)
822    o modified carbon verif.
823    
824    checkpoint44h_pre
825    o vertical grid option: allow to put the Interface at the middle between
826      2 cell-centers ; replace delZ in pkg/kpp by drF.
827    o GM Advective form: Tracers are advected using the residual transport (=
828      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
829    
830    checkpoint44g_post
831    o fix surface correction term in multiDimAdvection (affects plume_on_slope
832      results) ; ifdef missing in thermodynamics.F
833    
834    checkpoint44f_pre,checkpoint44f_post
835    o added PTRACERS package
836      This allows an arbitrary number of passive tracers to be integrated
837      forward simultaneously with the dynamicaly model.
838      + Implemented so far:
839        - basic forward algorithm (time-stepping, advection, diffusion, convection)
840        - I/O and checkpointing
841        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
842      + Not implemented so far:
843        - KPP
844        - OBCS
845      + No specific example supplied (yet) but global_ocean.90x40x15 has the
846        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
847        line in data.pkg.
848      + This package is disabled by default since it increases storage.
849    
850    
851    o testscript: added -cleanup option
852    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
853                 b) enable to filter 2D fields.
854    
855    checkpoint44e_pre,post
856    o re-wrote convective adjustment to use pre-calculated weights
857      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
858      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
859      Original calls to convect() still in place.
860    
861    chkpt44d_pre,post
862    o added missing EXCLUDE_MONITOR flags
863    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
864      (incompatible typ in MIN/MAX expressions caused problems
865      on IBM SP3)
866    o in genmake added variable MAKEDEPEND
867      plus resetting for case SunOS
868    o added timer_stats.c routine for IBM SP3
869    o removed variables in dynamics
870    !!! I forgot to create tag chkpt44d_pre !!!
871    !!! But chkpt44d_pre = chkpt44c_post    !!!
872    
873    o real fresh water flux implemented with non-linear free-surface.
874    
875    chkpt44c_pre,post
876    o few fix (mask in shap_s2, EmPmR in external_field_load,
877      USE_NATURAL_BCS in solve_for_P);
878    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
879    
880    checkpoint44b_pre/_post
881    o merge of relevant stuff from the ecco-branch:
882      - genmake: removed $S64 overwrite for case SunOS
883      - pkg/exf: update and corrections for field swapping and obcs
884      - pkg/ecco: parameter lists for the_model_main, the_main_loop
885                  harmonized between ECCO and MITgcm
886      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
887                      updated checkpointing_lev... lists for obcs
888      - model/src: minor changes in forward_step, plot_field
889                   added directive for divided adjoint in the_main_loop
890      - pkg/mdsio: added mdsio_gl_slice
891    
892    o check parameters & config (chkpt44a_pre,post)
893    o OBC and NonLin_FrSurf.
894    
895    checkpoint44
896    o fix bug in mom_vi_del2uv
897    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
898    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
899    o update AIM experiments (NCEP input files)
900    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
901    o added some stuff for AD
902    
903    checkpoint43
904    o added two new advection tests
905    o added global 4x4 degree ocean test
906    o added test of H&S94 with free surface on cube
907    o some final mods for gradient check, adjoint,...
908    
909    checkpoint42
910      Fixed AD-related problems:
911    o Store directives up-to-date with re-arranged Adams-Bashforth
912      (mainly thermodynamics.F)
913    o New store directives for multi-dim. advection schemes
914      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
915      * new common block and key passkey
916      (mainly gad_advection.F)
917    o Modified store directives for split of dynamics/thermodynamics
918      for the case ALLOW_KPP
919    o Cleaned argument list for timestep_tracer.F
920    
921    checkpoint41
922    o re-formatted/added comments in prologues of key subroutines
923      to work with protex
924    
925    checkpoint40
926    o moved calc_gs, calc_gt and calc_tr1 back to model/src
927    o added FLT (floats) package from Arne along with demo. experiment
928    o re-arranged Adams-Bashforth scheme for tracers to allow easier
929      implementation of forward-in-time forcing terms
930    o more mods for non-linear free-surface including new variable
931    o modified multi-dim method to work on cube
932    o bug fix in KPP (from DM)
933    
934    checkpoint40pre9
935    o added DST advection schemes
936    o fix MPI bug on SGI's
937    o modifications for non-linear free-surface
938    o fixed conditionals for fixed flow/passive tracer only mode
939    o added tension/strain form of stress tensor
940    o changes to commenting of arguments for TAF/TAMC
941    o added/updated many matlab scripts
942    o added multi-dimensional advection method for tracers
943      
944    checkpoint40pre8
945    o new package rw/
946      Added method for dumping intermediate local arrays:
947      mdsio_writetile - same as mdsio_writefield except works from inside
948                        bi,bj loop
949      mdsio_writelocal - same as mdsio_writetile except works for local
950                         arrays
951      write_local_r? - higher-level wrapper for mdsio_writelocal
952      Controlled by diagFreq. Defaults to zero (ie. no dumps)
953      Example given at end of mom_vecinv.F that dumps some local arrays.
954    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
955      control flux-form versus vector invariant code.
956      Switch is runtime flag vectorInvariantMomentum (defaults to false)
957      or genmake -DISABLE ...
958    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
959      (additional storing is now needed for case vecinv;
960      currently nothing implemented to switch this storing off
961      in case fluxform is used since no CPP flag available).
962    
963    checkpoint40pre7
964    o bug fix in dynamics.F
965      calc_viscosity called before k=1,Nr loop.
966    o added some #ifdef's ALLOW_PASSIVE_TRACER
967    o cleaned initialisations in ctrl_map_ini
968      related to TAF
969    
970    checkpoint40pre6
971    o split dynamics into thermodynamics & dynamics
972    o corresponding split of calc_diffusivity into
973      calc_diffusivity, calc_viscosity
974      (kpp_calc_diff, kpp_calc_visc).
975    o Added diffkr, kapgm to control variables
976    o bug fix in gmredi_slope_limit for ldd97
977    
978    checkpoint40pre5
979    o proper initialization of Adams-Bashforth time stepping
980      + uses forward step for very first step of model (iter=0)
981    o re-generated *all* output since almost all output is modified by this
982      change (sorry but we've been putting this one off for about 2 years)
983      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
984        *not* regenerated since they are already out of date and I don't
985        want to create the impression that they are suddenly working.
986    o removed KAP stuff for DEC's
987    o modified/added many .cvsignore files in */code and */input
988    o added new expt "solid-body.cs-32x32x1"
989      + this uses an alternative form of ini_curvilinear_grid.F which
990        is not necessarily any better than the current one...
991    
992    checkpoint40pre4
993    o added re-initialisations of utrans,vtrans,rtrans in
994      calc_common_factors which are crucial for TAF.
995    o extended iMin,jMin range for calc_common_factors,
996      calc_diffusivity
997    o added option ALLOW_PASSIVE_TRACER
998    o a few minor updates and fixes
999    
1000    checkpoint40pre3
1001    o created calc_gtr1.F for gad package
1002    o split the_main_loop and re-introduced forward_step
1003    o some recomputations of nIter0 for TAMC
1004    
1005  checkpoint40pre2  checkpoint40pre2
1006  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
1007  o Added gradient check package  o Added gradient check package

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