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revision 1.17 by cnh, Mon Nov 30 16:46:45 1998 UTC revision 1.191 by edhill, Tue Oct 21 21:14:08 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint51m_post
7    o incorporating changes to get TAMC/TAF working in genmake2
8      - added new TAMC/TAF targets to the Makefile
9      - various cleanups related to package handling
10      - these changes should have no impact on the forward model
11    
12    checkpoint51l_post
13    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
14     - faster algorithm for cal_addtime.F
15     - higher precision arithmetic, where needed
16     - pkg/exf *startdate variables changed from calendar date to
17       model integration time
18    
19    checkpoint51l_pre
20    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
21    o enable to apply restoring on S & T only in a latitude band.
22    o update output (external_forcing_surf modif. change truncation errors)
23       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
24    
25    checkpoint51k_post
26    o change default to: useNHMTerms=.FALSE.
27     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
28       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
29     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
30        exp1, ideal_2D_oce
31     - change data file of oceanic exp (leave the results unchanged for now)
32       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
33    o set gravitySign automatically according to the vertical coordinate used
34      (and change sign: back to "logical" value: +1 when R increases downward)
35    o added an include barrier to the default CPP_OPTIONS.h and
36      removed the #include "PACKAGES_CONFIG.h" from it
37    o fix a bug in mom_fluxform (from chk51j_post)
38    
39    checkpoint51j_post
40    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
41    o adjusted some flow directives (dynamics, thermodynamics)
42    o added cubed-sphere case to test cost function
43    o heckpoint_lev?_directives.h now include
44      pkg-specific directives, whenever those are enabled.
45    o Moving pkg-specific flow directives to corresponding pkg
46      Moving pkg-specific differentiation list to corresponding pkg
47      Moving pkg-specific checkpoint-lev storing to corresponding pkg
48      ---> conventions are
49           - pkg_ad.flow
50           - pkg_ad_diff.list
51           - pkg_ad_check_lev?_dir.h
52    
53    checkpoint51i_post
54    o merge of the branch-genmake2
55      - knowingly breaks the older genmake
56      - automatic generation of all ALLOW_${PKG_NAME} defines
57      - new testreport supersedes older testscript
58    o large number of package inclusion and header cleanups
59    checkpoint51i_pre
60    
61    o new output for adjoin of global ocean vector invariant
62    o fix for checkpoint of thermodynamic seaice and bulk_force
63    o Steph gchem various cleanups
64    
65    checkpoint 51h_pre
66    o fixed some single quotes
67    o modify gchem pkg to be more versatile
68    o modifications to clean up dic pkg
69    o add pkg/cfc
70    
71    checkpoint51g_post
72    o provide links for ARPACK and ADM*TLM
73    o start removing verification/vero/
74    o update AD-related stuff
75      (in particular some IF-statements in model/src/ routines)
76    o adding to verification/global_ocean.90x40x15/ adjoint of
77      vector invariant setup
78    
79    checkpoint51f_post
80    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
81    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
82      of tracer Green's fucntions for ocean inversion project.
83    
84    checkpoint51f_pre
85    o Added on-the-fly spatial interpolation capability
86        "USE_EXF_INTERPOLATION" to pkg/exf.
87      - This is a temporary Cartesian-grid hack until
88        the super-duper ESMF coupler becomes available.
89      - See verification/global_with_exf/README for usage example.
90      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
91        flags and modified pkg/seaice accordingly.
92    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
93        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
94        non-local transport term.
95    
96    checkpoint51e_post
97    o pkg/mom_vecinv:
98      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
99      - add time-ave diagnostic of vorticity advection.
100    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
101    o atmospheric geopotential: - include water vapor effect;
102                                - use p^kappa in p* scaling.
103    o land pkg: read initial state from files.
104    o AIM : add stratospheric drag in the upper level
105    
106    checkpoint51d_post
107    o change function ILNBLNK (=> last non-blank char.) to return zero
108      (instead of the string length) when the string. char is empty
109    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
110    o modif's to restore TAMC compatibility
111      - avoid "_d" constructs in PARAMETER declarations
112      - avoid interrupting lines by comment lines
113    o Use cluster local disks for purely local I/O
114      vs. globally visible disks needed for ctrl stuff
115      (merged from ecco-branch)
116      - new active_file_loc... and mdsio_..._loc routines
117      - affected packages: autodiff, ctrl, grdchk, mdsio
118    
119    checkpoint51c_post
120    o introducing integer flag debugLevel
121      - debLevZero: suppress all output
122      - debLevA: standard
123      - debLevB: equivalent to current debugMode=.TRUE.
124    o introducing pathname variable mdsioLocalDir for mdsio
125      that can be specified at runtime
126      (relevant for cluster I/O to local disk)
127    `
128    >>>checkpoint51b_post
129    adjoint of ptracers
130    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
131    o extended state in checkpoint_lev?, etc.
132    o alternative ctrl/cost with tr1 or ptracer
133    o new comlev1_bibj_ptracers
134    o new ptracers.flow
135    o made ptracers_forcing same as external_forcing_s
136    o added verification for adjoint with ptracers
137      - adm. grdchk fail so far
138      - tlm. grdchk OK
139      - checked tapelev/comlev recomputations: OK
140    <<<checkpoint51b_pre
141    
142    checkpoint51a_post
143    o added code for biogeochemistry package
144      - new pkgs: dic, gchem
145      - new subroutine in ptracers
146    o modify code for biogeo packages
147      - in model/src and pkg/ptracers
148    
149    checkpoint51
150    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
151      - autodiff, ctrl, exf, grdchk, seaice
152      kept separate packages
153      - cost, ecco, obcs
154    o updating verification/internal_wave, verification/lab_sea
155      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
156    
157    checkpoint50i_post
158    o Preparing next differentiable checkpoint and sync
159      of MAIN vs. ecco-branch
160      - 1st step: this one is differentiable
161      - 2nd step: next(! not this) checkpoint will have updated packages
162                  from ecco-branch)
163    
164    checkpoint50h_post
165    o new package "land": provide surface BC for AIM.
166    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
167    o AIM: use true log-P extrapolation for near surface temp (= as in
168        F.Molteni paper) ; update aim.5l_cs output.
169    o New variable in PARM03 for more flexible pickups
170    o somewhat cleaned package initialisation sequence for
171      ctrl/ cost/ ecco/ in packages_... routines
172    
173    checkpoint50g_post
174    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
175      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
176      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
177        made the default because of faster convergence than ADI
178    
179    checkpoint50f_post
180    o exf totally restructured
181      - replaced all exf_set_ routines by one generic exf_set_gen.F
182        and made sure it's still differentiable
183      - split exf_getffields.F into new exf_bulkformulae.F
184      - exf_inscal_/exf_outscal_ suffixes consistent with field names
185      - updated adjoint/makefile and relevant verif. accordingly
186    
187    checkpoint50f_pre
188     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
189          + change Evap over land. (update aim.5l_cs output)
190     o added missing .cvsignores and made uniform across expts
191     o changed configuration of tidal_basin_2d expt
192     o added pkg/debug functions for tracing code in fatal crashes
193     o tidied pkg/monitor to use MONITOR_OPTIONS.h
194     o new fn in pkg/monitor to stop model if solution grows too big
195     o removed lots of single quotes from comments
196    
197    checkpoint50e_post
198    o make KPP work with PTRACERS
199     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
200       nearly a copy of kpp_transport_s
201     - there is no analogue to SurfaceTendencyS, so I have to use
202       gPtr(of the surface layer) instead
203    o add a new platform SunFire+mpi (SunFire 15000) to genmake
204    checkpoint50e_pre
205    
206    checkpoint50d_post
207    o change kpp output from multiple-record state files to single-record state
208      files analogous to write_state.F
209    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
210      analogous to the cg2d-related output.
211    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
212      so that writing to internal file fn (with length 512) fails.
213    checkpoint50d_pre
214    
215    checkpoint50c_post
216    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
217    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
218    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
219    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
220    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
221    
222    checkpoint50c_pre
223    Merging from release1_p13:
224    o bug fix for pkg/seaice dynamic solver
225    o Added SEAICE_initialHEFF to pkg/seaice
226    
227    checkpoint50b_post
228    o store u*,v* in gU,V instead of in guNm1,gvNm1
229    o in order to put the momForcing out of the Adams-Bashforth:
230      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
231      to timestep.F
232    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
233    o re-generate output for highly sensitive test-exp:
234       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
235    
236    checkpoint50b_pre
237    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
238    o corrected CPP option mismatch in exf_Bulk... functions for case
239      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
240    
241    checkpoint50a_post
242    o Bug fix for merging between c50 and KPP.
243      ikey was passed from thermodynamics to kpp_calc via
244      common block rather than being recomputed in kpp_calc,
245      in contradiction with new key itdkey.
246      New key ikppkey created, and tamc.h headers updated.
247    
248    checkpoint50
249    - 2nd step of merge with ecco-branch:
250      merge changes in ecco-branch back into main trunk
251    - bug fix in find_alpha
252    - more storing in gmredi_calc_tensor.F, kpp_routines.F
253    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
254    - merged some sliced AD support routines
255    
256    checkpoint49
257    merged from ecco-branch:
258    o exf:
259      - Enable initialisation of forcing fields to constant
260        (runtime) values.
261      - in exf_getffields.F
262        Reduce i-/j-loop to interior domain, discarding overlaps.
263        That also fixes wrong TAF-key computations for key_1, key_2
264        with bulf formulae.
265      - exf_init.F modify #ifdef for exf_init_evap
266      - exf_getffieldrec.F, ctrl_getrec.F
267        The following INT-usages are not safe:
268          fldsecs  = int(fldsecs/fldperiod)*fldperiod
269          fldcount = int(fldsecs/fldperiod) + 1
270        and were modified.
271    o autodiff: checkpoint_lev...
272      - updated storing for bulk formulae (some arrays were missing)
273      - added state for seaice package
274      - synchronized with main branch
275    o DIVA:
276      Modif.s in
277      - the_main_loop.F
278      - the_model_main.F
279      and added cost_final_restore.F cost_final_store.F
280      o With these changes, it is possible to fully separate
281        the first forward run to compute the cost function (mdthe_main_loop)
282        and adjoint runs over individual DIVA intervals (adthe_main_loop)
283        into separate model executions.
284        This enables better tuning of DIVA to given queue sizes.
285      o Loss of cost function value in consecutive DIVA runs is
286        fixed by storing to 'costfinal' file.
287      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
288        beginning/end of adjoint integration is accounted for.
289      The current changes apply to TAF-1.4.26.
290      TAF has one remaining bug, requiring one manual change
291      (see MITgcm manual).
292    o cal: synchronized between MAIN and ecco-branch
293    
294    checkpoint48i_post
295    o Changes to restore differentiability of code w.r.t. previous tag
296      (mostly adding new routines to make list and replacing
297      pressure by totPhiHyd).
298    o Updated and merged grdchk package
299      - has both ADM and TLM checks
300      - works for single- and multi-proc.
301      - output cleaned
302      - worked successfully for parallel DIVA
303    o genmake:
304      - Adding -platform=SP4
305      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
306    o Modif. for DIVA:
307      ctrl_unpack should not be called in intermediate DIVA interval.
308      (similar thing would apply for active files such as
309      tbar, sbar, psbar, which should not be reinitialised;
310      only relevant for ecco-branch)
311    
312    checkpoint48h_post
313    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
314    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
315    o Added SEAICE_initialHEFF to pkg/seaice
316    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
317    
318    checkpoint48g_post
319    --- EOS:
320    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
321      store total Potential in totPhyHyd for diagnostics & EOS.
322    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
323    --- Pressure/geopotential gradient:
324    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
325    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
326      ( changes results of global_ocean_pressure )
327    o NLFS + z-coord.: add eta*Rho' contribution.
328    o accurate phiHyd when using interface-W at the middle between 2 centers
329     ( changes results of ideal_2D_oce )
330    o includes r* 2nd term in potential gradient.
331    
332    checkpoint48f_post
333    Merging from release1_p12:
334    o Modifications for using pkg/exf with pkg/seaice
335      - improved description of the various forcing configurations
336      - added basic radiation bulk formulae to pkg/exf
337      - units/sign fix for evap computation in exf_getffields.F
338      - updated verification/global_with_exf/results/output.txt
339    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
340      (SBO) core products, including oceanic mass, center-of-mass,
341      angular, and bottom pressure (see pkg/sbo/README.sbo).
342    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
343      to avoid negative values in shallow regions.
344      - updated verification/natl_box/results/output.txt
345      - updated verification/lab_sea/results/output.txt
346    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
347    o Added useSingleCpuIO option (see PARAMS.h).
348    o Updated useSingleCpuIO option in mdsio_writefield.F to
349      work with multi-field files, e.g., for single-file pickup.
350    o pkg/seaice:
351      - bug fix in growth.F: QNET for no shortwave case
352      - added HeffFile for specifying initial sea-ice thickness
353      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
354    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
355      kpp_transport_t.F, forward_step.F, and the_main_loop.F
356    o pkg/seaice:
357      - adjoint-friendly modifications
358      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
359    
360    checkpoint48e_post
361    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
362    o dynamics: change definition of computational domain & adapt mom_fluxform
363      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
364    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
365        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
366        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
367        global_ocean.90x40x15 global_with_exf global_ocean_pressure
368        inverted_barometer solid-body.cs-32x32x1
369      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
370    
371    checkpoint48d_post
372    o in preparation for r*:
373     a) use pre-computed gradient of hydrostatic potential:
374        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
375     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
376        => affects results of glob_oce_pressure (different truncation error)  
377      update output.txt of ideal_2D_oce & global_ocean_pressure
378    
379    checkpoint48d_pre
380    o in preparation for r*:
381      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
382      pass the 2 comp. of the grad. as arguments to momentum S/R.
383      but for the moment, only used if it does not change the results.
384    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
385    
386    checkpoint48c_post
387    Modifications in treatment of initial flux forcing controls
388    to avoid extra storing of flux fields.
389    
390    checkpoint48c_pre
391    o Added tidal_basin_2d experiment (currently 1D!)
392    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
393    
394    checkpoint48b_post
395    o r* coordinate added in #ifdef NONLIN_FRSURF block.
396     (modification to pressure gradient not yet implemented)
397    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
398      (for U & V) that are used for vertical advection of momentum.
399    
400    checkpoint48a_post
401    o In preparation for r*, use temp. array to compute vertical transport
402       in flux-form momentum pkg. => change results of few test-exp.
403      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
404                        lab_sea, natl_box & plume_on_slope
405    
406    checkpoint48
407    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
408    
409    checkpoint47j_post
410    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
411    o moved adexch from forward_step to addummy_in_stepping
412    o added exch in ctrl_map_...
413    o aveFreq.=0. at end of cost_final to avoid overwrite in
414      reverse checkpointing loop
415    o Yet more changes in gmredi:
416      * adgmredi_calc_tensor
417        avoiding all recomputation of gmredi_slope_limit
418      * adgmredi_x/y/rtransport
419        added flag for excessive storing to avoid recomp. of
420        u/v/rtans, dTdx/y/z
421        -> this is not really necessary and very memory-consuming
422      * adgmredi_slope_psi:
423        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
424      * gmredi_slope_limit
425        re-activated full calculation of taperfct for case 'ac02'
426    o updating verification/ adjoints of carbon, global_ocean.90x40x15
427    
428    checkpoint47i_post
429    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
430    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
431      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
432    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
433    o gmredi: fix few bugs.
434    
435    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
436    This will be a good checkpoint to plug into the ecco-branch.
437    o few modif.'s to get latest version adjointed
438      (mainly kick out code in ini_linear_phisurf)
439    o modif's to run adjoint with exactConserv
440    o case GM_BOLUS_ADVEC should be cleaned
441      S/R gmredi_slope_psi should be cleaned
442    o verification/carbon now has exactConserv=.TRUE.
443    
444    checkpoint47g_post
445    o time-average AIM output: becomes independent from statvars time-average
446      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
447    o After TAF bug fix:
448      Tested adjoint of gmredi package.
449      Tests were done with checkpoint47 rather than with latest
450      checkpoint47f_post since the latter is broken for the adjoint
451      verification/carbon/ contains both ADM and TLM gradient checks.
452    Here they are, before they get changed/lost/stolen.
453    Mostly modif.'s to fix numerical sensitivities.
454    Gradient checks OK for
455    - GM_taper_scheme:
456      * clipping
457      * ac02
458      * linear
459      * glw91
460      * dm95
461      * ldd97
462    - GMREDI_OPTIONS:
463      * GM_VISBECK_VARIABLE_K
464      * GM_NON_UNITY_DIAGONAL
465      * GM_EXTRA_DIAGONAL
466      * GM_BOLUS_ADVEC
467    in conjunction with data.gmredi parameters to be checked in
468    in a few minutes under verification/carbon/code/
469    
470    checkpoint47f_post
471    Merging from release1_p10:
472    o modifications for using pkg/exf with pkg/seaice
473      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
474        and SEAICE_EXTERNAL_FLUXES
475      - pkg/exf CPP options EXF_READ_EVAP and
476        EXF_NO_BULK_COMPUTATIONS
477      - usage examples are Experiments 8 and 9 in
478        verification/lab_sea/README
479      - verification/lab_sea default experiment now uses
480        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
481    
482    checkpoint47e_post
483    o created a tag prior to creating a branch
484    
485    checkpoint47d_post
486    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
487      at the bottom boundary had an erroneous half slip boundary condition
488    o added bottom drag and no slip boundary condition capabilities to
489      oceanic pressure coordinates code
490    o added new verification experiment global_ocean_pressure, this experiment is
491      also described in the tutorial section of the manual
492    checkpoint47d_pre
493    
494    checkpoint47c_post
495    o Added a verification experiment for a global cubed-sphere ocean run
496      -  verification/global_ocean.cubed32x32x30
497      -  uses pkg/therm_seaice and pkg/bulk_forcing
498    
499    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
500    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
501      when using P-coordinate; only implemented for atmospheric config.
502    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
503      NOTES: requires option NONLIN_FRSURF to be "#define".
504    o update advect_xz/results/output.txt (left from checkpoint44g_post)
505    
506    checkpoint47b_post
507    Merging from release1_p9:
508    o pkg/seaice
509      - removed GOTO's and added taf directives
510      - double precision constants to reduce the g77 (Linux)
511        to F77 (SGI) differences reported in release1_p8
512    o tools/genmake
513      - added SGI options
514    o verification/testscript
515      - updated to that of checkpoint47a_post
516    o verification/global_ocean.90x40x15/input/eedata
517      - modified for SGI f77 compatibility
518    o verification/lab_sea
519      - added description of sea-ice model
520      - added missing matlab routines
521      - added test of thermodynamics parallelization
522    
523    checkpoint47a_post
524    o new pkg: aim_v23
525     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
526       for now, keep the same surface forcing as before.
527     - Part-Cell implemented into AIM; check that Heat & Water are conserved
528     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
529     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
530    o add diagnostic of surface correction term in monitor output
531    
532    o bulk_force and therm_seaice
533    - Two packages:  bulk_force (Bulk forcing)
534      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
535    - Earlier integration from Stephaine Dutkiewicz
536      and Patrick Heimbach.
537    - Two ifdef statements for compile time,
538       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
539    
540    checkpoint47
541    differentiable version of checkpoint46n_post
542    o bug fix in quasihydrostaticterms
543    o * "clean" adjoint code (in terms of extensive recomputations)
544        can now be obtained for all GMREDI options (i.e. for
545        - GM_VISBECK_VARIABLE_K
546        - GM_NON_UNITY_DIAGONAL
547        - GM_EXTRA_DIAGONAL
548        - GM_BOLUS_ADVEC )
549      * However, wrong gradient check problem remains unsolved.
550      * New CPP options have been introduced for different
551        tapering schemes
552    o external_fields_load now part of differentiation list
553    o pressure needs multiple storing;
554      would be nice to have store_pressure at beginning or
555      end of forward_step, e.g. by having phiHyd global (5-dim.)
556      (NB: pressure is needed for certain cases in find_rho,
557      which is also invoked through convective_adjustment).
558    o recomputations in find_rho for cases
559     'JMD95'/'UNESCO' or 'MDJWF' are OK.
560    o #define ATMOSPHERIC_LOADING should be differentiable
561    o ini_forcing shifted to begining of initialise_varia
562    o Incorporating QNVS line search routines into MITgcm
563      (this is separate code, and therefore not under pkg)
564      lsopt/, optim/
565    o Updated verification/carbon/
566      - #define GM_VISBECK_VARIABLE_K
567      - GM_taper_scheme    = 'ldd97'    
568    
569    checkpoint46n_post
570    Merging from release1_p8:
571    o verification/natl_box:
572      updating new external_fields_load routine
573    o New package: pkg/seaice
574      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
575      The sea-ice code is based on Hibler (1979-1980).
576      Two sea-ice dynamic solvers, ADI and LSR, are included.
577      In addition to computing prognostic sea-ice variables and diagnosing
578      the forcing/external data fields that drive the ocean model,
579      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
580      The implied surface heat flux is then stored in variable
581      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
582      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
583      non-local transport term.  Because this call precedes model
584      thermodynamics, temperature under sea-ice may not be "exactly" at
585      the freezing point by the time theta is dumped or time-averaged.
586      N.B.: fairly large differences in accuracy occur across
587            different platforms/compilers; comparison between
588            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
589            generated output gives:
590       T           S           U           V
591      C D M    c        m  s        m  s        m  s        m  s
592      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
593      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
594      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
595    
596      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
597    o GAD:
598      - generated new common blocks to account for call of
599        same gad routines with differing traceridentities
600        (needed to modify tracerIdentity indices in GAD.h)
601      - generated separate common blocks for case useCubedSphereExchange
602        (Department of Futurology)
603      - parameter lists to gmredi_?transport: added tracerIdentity
604      - added new key indices to tamc.h
605    o external_fields_load:
606      - added this routine to TAF list
607      - needed to make some common blocks global and additional storing
608        along the same lines as exf package (checkpoint_lev?_directives.h)
609    o exf:
610      updated external forcing package
611      - bug fixes carried over from ecco-branch
612        (missing OBCS_OPTIONS.h in two routines)
613      - enable easy to use "no forcing".
614      - added exf I/O for atmospheric loading
615      - added exf I/O for runoff data
616      - transfered scaling between exf <-> MITgcm to exf namelist
617    o Adding new verification experiment global_with_exf.
618      This verification experiment is almost identical to the
619      global_ocean.90x40x15 experiment, except that it uses
620      the exf (and cal) package instead of the
621      external_fields_load routine (cf README file).
622    
623    checkpoint46m_post
624    o modified testscript to return -- when there are no lines of "%MON" output
625    o added new flag "quasiHydrostatic" for QH mode
626      and new routine quasihydrostaticterms()
627    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
628      New routine: mom_u_coriolis_nh()
629    o fixed sign of non-hydrostatic metric terms in u and v equations.
630      Depend on correct sign of gravitySign.
631    o added work.pc* to .cvsignore in aim directories using ifc
632    o introduced flag for controllin non-hydrostatic metric terms
633    o removed gravitySign from PARM04
634    o switched to g77/ifc from pgf77 in aim experiments
635    
636    checkpoint46l_post
637    o made convective adjustment work with pressure coordinates:
638     - changed the direction of k-loop in convective_adjustment.F for the
639       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
640     - adjusted the reference pressure k-index in convective_adjustment.F
641     - adjusted the convection condition in convect.F (in analogy to
642       calc_ivdc.F)
643     - convective_adjustment no longer computes anything on the halos
644     - removed the warnings about negative salinity from find_rho.F and
645       find_alpha.F; instead the new routine look_for_neg_salinity, called
646       at the beginning of find_rho, find_alpha, and find_beta, does a
647       check of the entire slice, if CPP-option
648       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
649    checkpoint46l_pre
650    
651    checkpoint46k_post
652    o fixed the verification/global_ocean.90x40x15 experiment:
653     - new bathymetry (the world according to A., JMC, and M.)
654     - new initial fields and forcing fields (*.bin files)
655     - new POLY3.COEFFS (for the next release one should switch to a full
656       equation of state: JMD95P or MDJWF)
657     - fixed several errors and redundancies in the data file
658     - experiment uses looped cells
659     - added matlab directory with diagnostic scripts for plotting of output
660    
661    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
662     - read AIM physics parameters from a file (data.aimphys)
663     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
664    
665    checkpoint46j_post
666    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
667    o move wVel computation at the end of the time step, in S/R integr_continuity
668    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
669    o update timeave pkg for wVel diagnostic.
670    checkpoint46j_pre
671    
672    checkpoint46i_post
673    o Clean up AIM package (and keep the results unchanged):
674      include CPP_OPTION and use IMPLICT NONE in all routines ;
675      declare all the variables _RL ; use _d 0 for all numerical constants.
676      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
677    
678    checkpoint46h_post
679    o cleaned up the use of rhoNil and rhoConst.
680      - rhoNil should only appear in the LINEAR equation of state, everywhere
681        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
682        and the dynamical equations are all divided by rhoConst
683    o introduced new parameter rhoConstFresh, a reference density of fresh
684      water, to remove the fresh water flux's dependence on rhoNil. The default
685      value is 999.8 kg/m^3
686    o cleanup up external_forcing.F and external_forcing_surf.F
687      - can now be used by both OCEANIC and OCEANICP
688    checkpoint46h_pre
689    
690     Added code to convert surface volume flux (fresh water) into
691     a mass flux when using P coordinates in the ocean (OCEANICP).
692     Note: It assumes you have set rho0=rhoConst=density of fresh water.
693    
694    checkpoint46g_post
695    o Include a new diagnostic variable phiHydLow for the ocean model
696      - in z-coordinates, it is the bottom pressure anomaly
697      - in p-coordinates, it is the sea surface elevation
698      - in both cases, these variable have global drift, reflecting the mass
699        drift in z-coordinates and the volume drift in p-coordinates
700      - included time averaging for phiHydLow, be aware of the drift!
701    o depth-dependent computation of Bo_surf for pressure coordinates
702      in the ocean (buoyancyRelation='OCEANICP')
703      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
704        Theta, Salinity, and Pressure in the parameter list. This routine is
705        presently contained in find_rho.F. This routine does not give the
706        correct density for 'POLY3', which would be a z-dependent reference
707        density.
708    o cleaned up find_rho
709      - removed obsolete 'eqn' from the parameter list.
710    o added two new verification experiments: gop and goz
711      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
712    checkpoint46g_pre
713    
714    checkpoint46f_post
715    o Enable tangent linear (forward mode) gradient checks:
716      - extended active file handling to g_... files
717      - added TANGENT_SIMULATION to theSimulationMode
718      - extended grdchk package accordingly
719    o added tangent linear setup in verification/carbon/code_ftl
720    o added adjoint setup in verification/front_relax/code_ad
721    
722    checkpoint46e_post
723    o Added new equation of state -> MDJWF
724      - EOS of McDougall et al., 2002, JAOT, submitted
725      - caveat: the equation of state is only valid for a smaller (more
726        realistic?) range of values than JMD95P/Z and UNESCO
727      - added masks to the calculation of pressure in store_pressure
728      - added more check values for density in check_eos (ini_eos.F), some of
729        the old check values are out of the range of the MDJWF-eos, so don't
730        expect perfect matches for those
731    checkpoint46e_pre
732    
733    checkpoint46d_post
734    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
735      'OCEANICP', also initialised field pressure correctly in ini_eos in the
736      case of pressure coordinates. eosType='JMD95Z' in
737      combination with buoyancyRelation='OCEANICP' now causes an error.
738    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
739      in find_alpha/beta.
740    checkpoint46d_pre
741    
742    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
743      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
744    
745    checkpoint46c_post
746    o Changes necessary for ocean in p-coordinates
747     -  Added new buoyancy relation = 'OCEANICP'
748     -  Added new parameters = gravitySign (this used to be contained inside
749        the factor dRdZ which I added when we first switched to R coordinates).
750     X GM/Redi is not compatible (yet)
751     X bottom drag and no-slip need to be debugged.
752    checkpoint46c_pre
753    
754    checkpoint46b_post
755    o Added new equation of state -> JMD95Z and JMD95P
756      - EOS of Jackett and McDougall, 1995, JAOT
757      - moved all EOS parameters into EOS.h
758      - new routines ini_eos.F, store_pressure.F
759    o Added UNESCO EOS, but not recommended because it requires
760      in-situ temperature (see JMD95)
761    o Modified formatting for knudsen2.f in utils/knudsen2 and added
762      unesco.f to be used with POLY3
763    checkpoint46b_pre
764    
765    checkpoint46a_post
766    o Added (atmospheric) pressure loading
767      - new field in FFIELDS.h, etc...
768      - new cpp flag ATMOSPHERIC_LOADING
769    o Changed hFacC to _hFacC in calc_phi_hyd.F
770    o Added SHORTWAVE_HEATING to some files for consistency
771    checkpoint46a_pre
772    
773    checkpoint46
774    further merges from release1_p5
775    o new ctrl package
776      - adopted from ECCO environment to enable optimization
777      - added Eliassen Palm fluxes to controls
778    o added Eliassen Palm flux controls to gradient check package
779    o cost package
780      - Compatible with new ctrl package
781      - added Eliassen Palm cost hooks
782      - modif's of existing cost functions
783    o Adjoint-related bug fixes in kpp:
784      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
785      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
786    o autodiff package
787      - flow directives:
788        + new for S/R do_the_model_io
789        + enhanced for S/R checkpoint
790        + new gmredi.flow
791      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
792        disable adcommon.h/g_common.h by default.
793      - fixed problem for adjoint of global_max
794    o modified verification/carbon/
795    o New setup for adjoint of global_ocean
796    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
797    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
798    o incorporated hooks for sponge layer code (external_forcing.F)
799    
800    checkpoint45d_post
801    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
802    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
803      (affects plume_on_slope "cg2d" output)
804    o add new parameter deltaTfreesurf for free-surface time stepping
805    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
806    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
807    o change phiMin in exp1 (to agree with documentation)
808    o add new flags:
809     - T,S forcing inside/outside Adams-Bashforth
810     - turn off temp,salt advection and/or forcing
811     - for each tracer, define internal flag for multiDimAdvection & A-B
812    o monitor: change definition of KE to check conservation of Energy
813    
814    checkpoint45c_post
815    o Removed f90 comments ("!")
816    o Modified initialisations to enable exf package for MITgcm
817      (without invoking ECCO_PACKAGE).
818    o modifications to gradient check package (Martin Losch)
819      - enable centered differences
820      - modified format of standard output
821    
822    checkpoint45b_post
823    o cleaned exchange calls in cg2d
824    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
825    o included CPP option SINGLE_LAYER_MODE in thermodynamics
826      to configure barotropic setup (Martin Losch)
827    o moved some initialisations within bi,bj loop in dynamics
828      (TAF flow dependency)
829    o in initialise_varia, moved call packages_init_variables
830      before convective_adjustment_init
831      (corresponding adjustment of TAF tape initialisation).
832    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
833    
834    checkpoint45a_post
835    o compute Rho over the whole domain (extend iMin,jMin indices)
836    o specific exchange for X-slice domain (case Ny=1)
837    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
838    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
839    
840    checkpoint44h_post = checkpoint45
841    o Fix to restore differentiability:
842      place at which packages_init_variables is called in
843      initialise_varia is crucial for reverse control flow.
844    o modifications in GMRedi to enable stable adjoint
845      (corresponding modif's in thermodynamics, dynamics)
846    o added missing hook for sponge layer code in external_forcing
847    o modified test cost functions
848    o storing in gad_advection (plus removal of write(0,*)!
849    o missing headers TR1.h added in convective_adjustment routines
850    o errorMessageUnit set non-equal zero in eeboot
851      (conflict on some platforms, e.g. IBM SP3)
852    o modified carbon verif.
853    
854    checkpoint44h_pre
855    o vertical grid option: allow to put the Interface at the middle between
856      2 cell-centers ; replace delZ in pkg/kpp by drF.
857    o GM Advective form: Tracers are advected using the residual transport (=
858      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
859    
860    checkpoint44g_post
861    o fix surface correction term in multiDimAdvection (affects plume_on_slope
862      results) ; ifdef missing in thermodynamics.F
863    
864    checkpoint44f_pre,checkpoint44f_post
865    o added PTRACERS package
866      This allows an arbitrary number of passive tracers to be integrated
867      forward simultaneously with the dynamicaly model.
868      + Implemented so far:
869        - basic forward algorithm (time-stepping, advection, diffusion, convection)
870        - I/O and checkpointing
871        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
872      + Not implemented so far:
873        - KPP
874        - OBCS
875      + No specific example supplied (yet) but global_ocean.90x40x15 has the
876        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
877        line in data.pkg.
878      + This package is disabled by default since it increases storage.
879    
880    
881    o testscript: added -cleanup option
882    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
883                 b) enable to filter 2D fields.
884    
885    checkpoint44e_pre,post
886    o re-wrote convective adjustment to use pre-calculated weights
887      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
888      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
889      Original calls to convect() still in place.
890    
891    chkpt44d_pre,post
892    o added missing EXCLUDE_MONITOR flags
893    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
894      (incompatible typ in MIN/MAX expressions caused problems
895      on IBM SP3)
896    o in genmake added variable MAKEDEPEND
897      plus resetting for case SunOS
898    o added timer_stats.c routine for IBM SP3
899    o removed variables in dynamics
900    !!! I forgot to create tag chkpt44d_pre !!!
901    !!! But chkpt44d_pre = chkpt44c_post    !!!
902    
903    o real fresh water flux implemented with non-linear free-surface.
904    
905    chkpt44c_pre,post
906    o few fix (mask in shap_s2, EmPmR in external_field_load,
907      USE_NATURAL_BCS in solve_for_P);
908    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
909    
910    checkpoint44b_pre/_post
911    o merge of relevant stuff from the ecco-branch:
912      - genmake: removed $S64 overwrite for case SunOS
913      - pkg/exf: update and corrections for field swapping and obcs
914      - pkg/ecco: parameter lists for the_model_main, the_main_loop
915                  harmonized between ECCO and MITgcm
916      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
917                      updated checkpointing_lev... lists for obcs
918      - model/src: minor changes in forward_step, plot_field
919                   added directive for divided adjoint in the_main_loop
920      - pkg/mdsio: added mdsio_gl_slice
921    
922    o check parameters & config (chkpt44a_pre,post)
923    o OBC and NonLin_FrSurf.
924    
925    checkpoint44
926    o fix bug in mom_vi_del2uv
927    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
928    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
929    o update AIM experiments (NCEP input files)
930    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
931    o added some stuff for AD
932    
933    checkpoint43
934    o added two new advection tests
935    o added global 4x4 degree ocean test
936    o added test of H&S94 with free surface on cube
937    o some final mods for gradient check, adjoint,...
938    
939    checkpoint42
940      Fixed AD-related problems:
941    o Store directives up-to-date with re-arranged Adams-Bashforth
942      (mainly thermodynamics.F)
943    o New store directives for multi-dim. advection schemes
944      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
945      * new common block and key passkey
946      (mainly gad_advection.F)
947    o Modified store directives for split of dynamics/thermodynamics
948      for the case ALLOW_KPP
949    o Cleaned argument list for timestep_tracer.F
950    
951    checkpoint41
952    o re-formatted/added comments in prologues of key subroutines
953      to work with protex
954    
955    checkpoint40
956    o moved calc_gs, calc_gt and calc_tr1 back to model/src
957    o added FLT (floats) package from Arne along with demo. experiment
958    o re-arranged Adams-Bashforth scheme for tracers to allow easier
959      implementation of forward-in-time forcing terms
960    o more mods for non-linear free-surface including new variable
961    o modified multi-dim method to work on cube
962    o bug fix in KPP (from DM)
963    
964    checkpoint40pre9
965    o added DST advection schemes
966    o fix MPI bug on SGI's
967    o modifications for non-linear free-surface
968    o fixed conditionals for fixed flow/passive tracer only mode
969    o added tension/strain form of stress tensor
970    o changes to commenting of arguments for TAF/TAMC
971    o added/updated many matlab scripts
972    o added multi-dimensional advection method for tracers
973      
974    checkpoint40pre8
975    o new package rw/
976      Added method for dumping intermediate local arrays:
977      mdsio_writetile - same as mdsio_writefield except works from inside
978                        bi,bj loop
979      mdsio_writelocal - same as mdsio_writetile except works for local
980                         arrays
981      write_local_r? - higher-level wrapper for mdsio_writelocal
982      Controlled by diagFreq. Defaults to zero (ie. no dumps)
983      Example given at end of mom_vecinv.F that dumps some local arrays.
984    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
985      control flux-form versus vector invariant code.
986      Switch is runtime flag vectorInvariantMomentum (defaults to false)
987      or genmake -DISABLE ...
988    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
989      (additional storing is now needed for case vecinv;
990      currently nothing implemented to switch this storing off
991      in case fluxform is used since no CPP flag available).
992    
993    checkpoint40pre7
994    o bug fix in dynamics.F
995      calc_viscosity called before k=1,Nr loop.
996    o added some #ifdef's ALLOW_PASSIVE_TRACER
997    o cleaned initialisations in ctrl_map_ini
998      related to TAF
999    
1000    checkpoint40pre6
1001    o split dynamics into thermodynamics & dynamics
1002    o corresponding split of calc_diffusivity into
1003      calc_diffusivity, calc_viscosity
1004      (kpp_calc_diff, kpp_calc_visc).
1005    o Added diffkr, kapgm to control variables
1006    o bug fix in gmredi_slope_limit for ldd97
1007    
1008    checkpoint40pre5
1009    o proper initialization of Adams-Bashforth time stepping
1010      + uses forward step for very first step of model (iter=0)
1011    o re-generated *all* output since almost all output is modified by this
1012      change (sorry but we've been putting this one off for about 2 years)
1013      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1014        *not* regenerated since they are already out of date and I don't
1015        want to create the impression that they are suddenly working.
1016    o removed KAP stuff for DEC's
1017    o modified/added many .cvsignore files in */code and */input
1018    o added new expt "solid-body.cs-32x32x1"
1019      + this uses an alternative form of ini_curvilinear_grid.F which
1020        is not necessarily any better than the current one...
1021    
1022    checkpoint40pre4
1023    o added re-initialisations of utrans,vtrans,rtrans in
1024      calc_common_factors which are crucial for TAF.
1025    o extended iMin,jMin range for calc_common_factors,
1026      calc_diffusivity
1027    o added option ALLOW_PASSIVE_TRACER
1028    o a few minor updates and fixes
1029    
1030    checkpoint40pre3
1031    o created calc_gtr1.F for gad package
1032    o split the_main_loop and re-introduced forward_step
1033    o some recomputations of nIter0 for TAMC
1034    
1035    checkpoint40pre2
1036    o Updated to latest branch of AJA, JMC
1037    o Added gradient check package
1038    o Added routines for passive tracer handling
1039    o Added carbon sequestration sensitivity experiment
1040    
1041    checkpoint39
1042     o Modifications and fixes to support TAMC
1043       (mainly missing or wrong directives)
1044     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1045       in addummy_in_stepping
1046     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1047     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1048     o Included following packages:
1049       cal: calendar
1050       exf: external forcing
1051       ecco: essential routines to control use of cal, exf
1052             (NB: this is not the full ECCO environment)
1053     o disabled some packages by default in genmake
1054    
1055    checkpoint38
1056     o see notes_c37_adj.txt
1057     o corrected wrong layer index in external_forcing_t
1058     o replaced the_main_loop/forward_step by the_main_loop
1059     o removed forceoutput from write_state
1060       (replaced criteria for initial/final state)
1061     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1062    
1063    checkpoint37
1064     o mdsio.F routine split and packaged in pkg/mdsio
1065       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1066        used unless genmake -disable=mdsio)
1067     o allow a more precise surface-geopotential gradient for the atmosphere
1068       taking into account the change in space of Alpha (=1/rho) at the surface.
1069     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1070       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1071     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1072       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1073       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1074     o Time-Average diagnostics defined as a pseudo package "timeave".
1075     o pickup files : old pickup (before c35) did not work with new code (c35
1076       and after) unless activating 2 commented lines in initialise-varia.
1077     o Non-Hydrostatic pickup file Pb fixed.
1078     o bug with Rigid-lid version (since c35) fixed.  
1079    
1080    checkpoint36
1081     o implement Crank-Nickelson barotropic time-stepping
1082     o recover Time-Average diagnostics
1083     o fix Pb in checkpoint (PR#19)
1084     o AIM become a standard package ; clean unused CPP_kees
1085    
1086    checkpoint35
1087     o subtantial rewrite of dynamics.f
1088     o allows staggered time-stepping
1089     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1090     o added bottom drag (linear + quadratic)
1091    
1092    checkpoint34
1093     o Modified exchange routines for correct reverse simulation.
1094     o Added verification output to comply with bug fix in impldiff.F
1095       as of c33 (exp2, natl_box).
1096     o Corrected store directives in dynamics.F
1097     o Corrected array boundaries in impldiff.F
1098     o Corrected array dimensions in gmredi.
1099       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1100     o Added routine GLOBAL_SUM_INT to global_sum.F
1101     o Added mdsio_gl.F for ECCO purposes.
1102    
1103    checkpoint33
1104     o Fixed bug in lower BC in impldiff.F
1105     o Fixed confusion about units of forcing arrays in FFIELDS.h
1106       namely Fu,Fv,Qnet,Qsw,EmPmR:
1107       - Removed verification/natl_box/code/external_fields_scale.F
1108         (did not differ from that in model/src)
1109       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1110         (see FFIELDS.h for description)
1111       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1112         kpp_calc.F and kpp_transport_t.F
1113       - Removed model/src/external_fields_scale.F and calls to it
1114       - verification/natl_box uses flux data with "atmospheric" sign so
1115         a special version of external_fields_load.F is used to
1116         change the data as it's read in. This way, the arrays
1117         have the right units and signs at all times tha a user could
1118         possibly use them.
1119     o Corrected genmake to delete a temporary file during configuration
1120    
1121    checkpoint32
1122     o Scaling of forcing fields moved from external_forcing.F to
1123       external_fields_scale.F, called directly after loading fields.
1124     o Surface relaxation terms added to surface tendency fields in
1125       extra subroutine.
1126     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1127       fields.
1128     o Changes in GMRedi to comply with packaging structure.
1129     o Modifications and bug fixes in KPP package.
1130     o Verification experiment for KPP added (verification/nat_box/)
1131    
1132    checkpoint31
1133     o Packages interface brought in line with defined standard
1134       -> new routines packages_...F
1135       -> changes in initialise_fixed.F, initialise_varia.F
1136       -> enables initialisation interface for ECCO package
1137     o Rescaling of external forcing fields immediately after read
1138       (removed from external_forcing.F)
1139       -> new: surface_fields_scale.F
1140       -> affects ini_foorcing.F, external_fields_load.F
1141     o Computation of surface tendencies before tendency updates.
1142       -> new: external_forcing_surf.F
1143     o Change of variable names useGMRedi, useKPP, useECCO
1144     o Further changes in dynamics.F, impldiff.F for TAMC
1145     o Tested for experiments 0, 2, 4.
1146       - not yet tested for GMRedi.
1147       - not yet tested for KPP.
1148    
1149    checkpoint30
1150     o Updates for OBCs
1151     o New experiment for test OBCs (internal_wave)
1152     o New output.txt in verification/exp4/results/
1153     o Updates for KPP: calculation of viscosity corrected, new variables
1154       kpp_dumpFreq and kpp_taveFreq
1155     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1156       and entry for T90 in genmake
1157    
1158    checkpoint29
1159     o packaged KPP and GM/Redi
1160    
1161    checkpoint28
1162     o Corrected initialization of hFacMin for difference vertical coordinates
1163     o Modified calculation of partial cell thickness to more robust algorithm
1164     o config_summary.F: replaced write_1D_... by write_0D_...
1165       read_write.F: added subroutines write_0D_...
1166     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1167       included some initialisations required for TAMC.
1168     o routine calc_isoslopes: modified sqrt computation to make it
1169       differentiable for zero argument.
1170     o routines dynamics, impldiff:
1171       included store directives and tape key computations required for TAMC.
1172     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1173    
1174    checkpoint27
1175     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1176       formulation works properly with variable resolution.
1177     o restructured the calling tree between the_model_main() and dynamics()
1178     o split initialise() into initialise_fixed() and initialise_varia()
1179     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1180       in new routine ini_psurf()
1181    
1182    checkpoint26
1183     o moved some #ifdef in optional routines to encompass everything
1184       except the argument declarations. This was using up some memory.
1185     o fixed macros like _ADT to work with both versions of Linux cpp
1186     o cleaned up some unused and uninitialized variables
1187       (helps when debugging with strict compile options)
1188     o split up CPP_EEOPTIONS.h into options and macros
1189       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1190     o patch for 2 processor JAM mode
1191    
1192    checkpoint25
1193     o updates for OBCs and NH
1194     o dramatically reduced memory usage
1195     o added "JAM" routines for use on Artic network
1196     o parameterization of convection by implicit vertical diffusion
1197     o added a diagnostic of convective index
1198     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1199       (this is was partly for OBCs and NH but also in anticipation of
1200        an explicit free-surface option)
1201     o initial state input files for U and V
1202    
1203    checkpoint24
1204     o Removed some spurious "REAL"s
1205     o Updated KPP to latest version from JPL
1206     o Added a COS(latitude) in horizontal viscosity
1207    
1208    checkpoint23
1209     o Added del^4 diffusion for salt and temperature
1210     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1211    
1212    checkpoint22
1213     o Made many small changes: implicit none, format(i5), etc...
1214     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1215    
1216    checkpoint21
1217     o Introduced new I/O package that supports direct-access records (mdsio.F)
1218     o Split-up mid-level I/O routines
1219     o Updated input data for experiments 0,1,2,4 and 5
1220     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1221    
1222    checkpoint20
1223     o Tidied up open-boundaries some more
1224     o Added non-hydrostatic code
1225     o Fixed some input data
1226     o Modified MPI start-up to work in "coupled" context.
1227    
1228    checkpoint19
1229     o Tidied up directory structure for verification experiments.
1230     o Added new code for open boundaries.
1231     o Corrected advective terms near boundaries.
1232     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1233     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1234     o Split default parameters out of ini_parms.F into set_defaults.F.
1235    
1236  checkpoint18  checkpoint18
1237   o Further changes for optional code generation with   o Further changes for optional code generation with
1238     CPP - ugh!     CPP - ugh!

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