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revision 1.10 by cnh, Wed Jul 8 15:40:09 1998 UTC revision 1.184 by edhill, Thu Oct 9 04:19:17 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint51i_post
7    o merge of the branch-genmake2
8      - knowingly breaks the older genmake
9      - automatic generation of all ALLOW_${PKG_NAME} defines
10      - new testreport supersedes older testscript
11    o large number of package inclusion and header cleanups
12    checkpoint51i_pre
13    
14    o new output for adjoin of global ocean vector invariant
15    o fix for checkpoint of thermodynamic seaice and bulk_force
16    o Steph gchem various cleanups
17    
18    checkpoint 51h_pre
19    o fixed some single quotes
20    o modify gchem pkg to be more versatile
21    o modifications to clean up dic pkg
22    o add pkg/cfc
23    
24    checkpoint51g_post
25    o provide links for ARPACK and ADM*TLM
26    o start removing verification/vero/
27    o update AD-related stuff
28      (in particular some IF-statements in model/src/ routines)
29    o adding to verification/global_ocean.90x40x15/ adjoint of
30      vector invariant setup
31    
32    checkpoint51f_post
33    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
34    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
35      of tracer Green's fucntions for ocean inversion project.
36    
37    checkpoint51f_pre
38    o Added on-the-fly spatial interpolation capability
39        "USE_EXF_INTERPOLATION" to pkg/exf.
40      - This is a temporary Cartesian-grid hack until
41        the super-duper ESMF coupler becomes available.
42      - See verification/global_with_exf/README for usage example.
43      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
44        flags and modified pkg/seaice accordingly.
45    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
46        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
47        non-local transport term.
48    
49    checkpoint51e_post
50    o pkg/mom_vecinv:
51      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
52      - add time-ave diagnostic of vorticity advection.
53    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
54    o atmospheric geopotential: - include water vapor effect;
55                                - use p^kappa in p* scaling.
56    o land pkg: read initial state from files.
57    o AIM : add stratospheric drag in the upper level
58    
59    checkpoint51d_post
60    o change function ILNBLNK (=> last non-blank char.) to return zero
61      (instead of the string length) when the string. char is empty
62    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
63    o modif's to restore TAMC compatibility
64      - avoid "_d" constructs in PARAMETER declarations
65      - avoid interrupting lines by comment lines
66    o Use cluster local disks for purely local I/O
67      vs. globally visible disks needed for ctrl stuff
68      (merged from ecco-branch)
69      - new active_file_loc... and mdsio_..._loc routines
70      - affected packages: autodiff, ctrl, grdchk, mdsio
71    
72    checkpoint51c_post
73    o introducing integer flag debugLevel
74      - debLevZero: suppress all output
75      - debLevA: standard
76      - debLevB: equivalent to current debugMode=.TRUE.
77    o introducing pathname variable mdsioLocalDir for mdsio
78      that can be specified at runtime
79      (relevant for cluster I/O to local disk)
80    `
81    >>>checkpoint51b_post
82    adjoint of ptracers
83    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
84    o extended state in checkpoint_lev?, etc.
85    o alternative ctrl/cost with tr1 or ptracer
86    o new comlev1_bibj_ptracers
87    o new ptracers.flow
88    o made ptracers_forcing same as external_forcing_s
89    o added verification for adjoint with ptracers
90      - adm. grdchk fail so far
91      - tlm. grdchk OK
92      - checked tapelev/comlev recomputations: OK
93    <<<checkpoint51b_pre
94    
95    checkpoint51a_post
96    o added code for biogeochemistry package
97      - new pkgs: dic, gchem
98      - new subroutine in ptracers
99    o modify code for biogeo packages
100      - in model/src and pkg/ptracers
101    
102    checkpoint51
103    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
104      - autodiff, ctrl, exf, grdchk, seaice
105      kept separate packages
106      - cost, ecco, obcs
107    o updating verification/internal_wave, verification/lab_sea
108      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
109    
110    checkpoint50i_post
111    o Preparing next differentiable checkpoint and sync
112      of MAIN vs. ecco-branch
113      - 1st step: this one is differentiable
114      - 2nd step: next(! not this) checkpoint will have updated packages
115                  from ecco-branch)
116    
117    checkpoint50h_post
118    o new package "land": provide surface BC for AIM.
119    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
120    o AIM: use true log-P extrapolation for near surface temp (= as in
121        F.Molteni paper) ; update aim.5l_cs output.
122    o New variable in PARM03 for more flexible pickups
123    o somewhat cleaned package initialisation sequence for
124      ctrl/ cost/ ecco/ in packages_... routines
125    
126    checkpoint50g_post
127    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
128      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
129      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
130        made the default because of faster convergence than ADI
131    
132    checkpoint50f_post
133    o exf totally restructured
134      - replaced all exf_set_ routines by one generic exf_set_gen.F
135        and made sure it's still differentiable
136      - split exf_getffields.F into new exf_bulkformulae.F
137      - exf_inscal_/exf_outscal_ suffixes consistent with field names
138      - updated adjoint/makefile and relevant verif. accordingly
139    
140    checkpoint50f_pre
141     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
142          + change Evap over land. (update aim.5l_cs output)
143     o added missing .cvsignores and made uniform across expts
144     o changed configuration of tidal_basin_2d expt
145     o added pkg/debug functions for tracing code in fatal crashes
146     o tidied pkg/monitor to use MONITOR_OPTIONS.h
147     o new fn in pkg/monitor to stop model if solution grows too big
148     o removed lots of single quotes from comments
149    
150    checkpoint50e_post
151    o make KPP work with PTRACERS
152     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
153       nearly a copy of kpp_transport_s
154     - there is no analogue to SurfaceTendencyS, so I have to use
155       gPtr(of the surface layer) instead
156    o add a new platform SunFire+mpi (SunFire 15000) to genmake
157    checkpoint50e_pre
158    
159    checkpoint50d_post
160    o change kpp output from multiple-record state files to single-record state
161      files analogous to write_state.F
162    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
163      analogous to the cg2d-related output.
164    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
165      so that writing to internal file fn (with length 512) fails.
166    checkpoint50d_pre
167    
168    checkpoint50c_post
169    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
170    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
171    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
172    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
173    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
174    
175    checkpoint50c_pre
176    Merging from release1_p13:
177    o bug fix for pkg/seaice dynamic solver
178    o Added SEAICE_initialHEFF to pkg/seaice
179    
180    checkpoint50b_post
181    o store u*,v* in gU,V instead of in guNm1,gvNm1
182    o in order to put the momForcing out of the Adams-Bashforth:
183      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
184      to timestep.F
185    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
186    o re-generate output for highly sensitive test-exp:
187       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
188    
189    checkpoint50b_pre
190    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
191    o corrected CPP option mismatch in exf_Bulk... functions for case
192      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
193    
194    checkpoint50a_post
195    o Bug fix for merging between c50 and KPP.
196      ikey was passed from thermodynamics to kpp_calc via
197      common block rather than being recomputed in kpp_calc,
198      in contradiction with new key itdkey.
199      New key ikppkey created, and tamc.h headers updated.
200    
201    checkpoint50
202    - 2nd step of merge with ecco-branch:
203      merge changes in ecco-branch back into main trunk
204    - bug fix in find_alpha
205    - more storing in gmredi_calc_tensor.F, kpp_routines.F
206    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
207    - merged some sliced AD support routines
208    
209    checkpoint49
210    merged from ecco-branch:
211    o exf:
212      - Enable initialisation of forcing fields to constant
213        (runtime) values.
214      - in exf_getffields.F
215        Reduce i-/j-loop to interior domain, discarding overlaps.
216        That also fixes wrong TAF-key computations for key_1, key_2
217        with bulf formulae.
218      - exf_init.F modify #ifdef for exf_init_evap
219      - exf_getffieldrec.F, ctrl_getrec.F
220        The following INT-usages are not safe:
221          fldsecs  = int(fldsecs/fldperiod)*fldperiod
222          fldcount = int(fldsecs/fldperiod) + 1
223        and were modified.
224    o autodiff: checkpoint_lev...
225      - updated storing for bulk formulae (some arrays were missing)
226      - added state for seaice package
227      - synchronized with main branch
228    o DIVA:
229      Modif.s in
230      - the_main_loop.F
231      - the_model_main.F
232      and added cost_final_restore.F cost_final_store.F
233      o With these changes, it is possible to fully separate
234        the first forward run to compute the cost function (mdthe_main_loop)
235        and adjoint runs over individual DIVA intervals (adthe_main_loop)
236        into separate model executions.
237        This enables better tuning of DIVA to given queue sizes.
238      o Loss of cost function value in consecutive DIVA runs is
239        fixed by storing to 'costfinal' file.
240      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
241        beginning/end of adjoint integration is accounted for.
242      The current changes apply to TAF-1.4.26.
243      TAF has one remaining bug, requiring one manual change
244      (see MITgcm manual).
245    o cal: synchronized between MAIN and ecco-branch
246    
247    checkpoint48i_post
248    o Changes to restore differentiability of code w.r.t. previous tag
249      (mostly adding new routines to make list and replacing
250      pressure by totPhiHyd).
251    o Updated and merged grdchk package
252      - has both ADM and TLM checks
253      - works for single- and multi-proc.
254      - output cleaned
255      - worked successfully for parallel DIVA
256    o genmake:
257      - Adding -platform=SP4
258      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
259    o Modif. for DIVA:
260      ctrl_unpack should not be called in intermediate DIVA interval.
261      (similar thing would apply for active files such as
262      tbar, sbar, psbar, which should not be reinitialised;
263      only relevant for ecco-branch)
264    
265    checkpoint48h_post
266    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
267    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
268    o Added SEAICE_initialHEFF to pkg/seaice
269    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
270    
271    checkpoint48g_post
272    --- EOS:
273    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
274      store total Potential in totPhyHyd for diagnostics & EOS.
275    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
276    --- Pressure/geopotential gradient:
277    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
278    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
279      ( changes results of global_ocean_pressure )
280    o NLFS + z-coord.: add eta*Rho' contribution.
281    o accurate phiHyd when using interface-W at the middle between 2 centers
282     ( changes results of ideal_2D_oce )
283    o includes r* 2nd term in potential gradient.
284    
285    checkpoint48f_post
286    Merging from release1_p12:
287    o Modifications for using pkg/exf with pkg/seaice
288      - improved description of the various forcing configurations
289      - added basic radiation bulk formulae to pkg/exf
290      - units/sign fix for evap computation in exf_getffields.F
291      - updated verification/global_with_exf/results/output.txt
292    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
293      (SBO) core products, including oceanic mass, center-of-mass,
294      angular, and bottom pressure (see pkg/sbo/README.sbo).
295    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
296      to avoid negative values in shallow regions.
297      - updated verification/natl_box/results/output.txt
298      - updated verification/lab_sea/results/output.txt
299    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
300    o Added useSingleCpuIO option (see PARAMS.h).
301    o Updated useSingleCpuIO option in mdsio_writefield.F to
302      work with multi-field files, e.g., for single-file pickup.
303    o pkg/seaice:
304      - bug fix in growth.F: QNET for no shortwave case
305      - added HeffFile for specifying initial sea-ice thickness
306      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
307    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
308      kpp_transport_t.F, forward_step.F, and the_main_loop.F
309    o pkg/seaice:
310      - adjoint-friendly modifications
311      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
312    
313    checkpoint48e_post
314    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
315    o dynamics: change definition of computational domain & adapt mom_fluxform
316      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
317    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
318        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
319        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
320        global_ocean.90x40x15 global_with_exf global_ocean_pressure
321        inverted_barometer solid-body.cs-32x32x1
322      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
323    
324    checkpoint48d_post
325    o in preparation for r*:
326     a) use pre-computed gradient of hydrostatic potential:
327        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
328     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
329        => affects results of glob_oce_pressure (different truncation error)  
330      update output.txt of ideal_2D_oce & global_ocean_pressure
331    
332    checkpoint48d_pre
333    o in preparation for r*:
334      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
335      pass the 2 comp. of the grad. as arguments to momentum S/R.
336      but for the moment, only used if it does not change the results.
337    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
338    
339    checkpoint48c_post
340    Modifications in treatment of initial flux forcing controls
341    to avoid extra storing of flux fields.
342    
343    checkpoint48c_pre
344    o Added tidal_basin_2d experiment (currently 1D!)
345    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
346    
347    checkpoint48b_post
348    o r* coordinate added in #ifdef NONLIN_FRSURF block.
349     (modification to pressure gradient not yet implemented)
350    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
351      (for U & V) that are used for vertical advection of momentum.
352    
353    checkpoint48a_post
354    o In preparation for r*, use temp. array to compute vertical transport
355       in flux-form momentum pkg. => change results of few test-exp.
356      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
357                        lab_sea, natl_box & plume_on_slope
358    
359    checkpoint48
360    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
361    
362    checkpoint47j_post
363    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
364    o moved adexch from forward_step to addummy_in_stepping
365    o added exch in ctrl_map_...
366    o aveFreq.=0. at end of cost_final to avoid overwrite in
367      reverse checkpointing loop
368    o Yet more changes in gmredi:
369      * adgmredi_calc_tensor
370        avoiding all recomputation of gmredi_slope_limit
371      * adgmredi_x/y/rtransport
372        added flag for excessive storing to avoid recomp. of
373        u/v/rtans, dTdx/y/z
374        -> this is not really necessary and very memory-consuming
375      * adgmredi_slope_psi:
376        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
377      * gmredi_slope_limit
378        re-activated full calculation of taperfct for case 'ac02'
379    o updating verification/ adjoints of carbon, global_ocean.90x40x15
380    
381    checkpoint47i_post
382    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
383    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
384      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
385    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
386    o gmredi: fix few bugs.
387    
388    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
389    This will be a good checkpoint to plug into the ecco-branch.
390    o few modif.'s to get latest version adjointed
391      (mainly kick out code in ini_linear_phisurf)
392    o modif's to run adjoint with exactConserv
393    o case GM_BOLUS_ADVEC should be cleaned
394      S/R gmredi_slope_psi should be cleaned
395    o verification/carbon now has exactConserv=.TRUE.
396    
397    checkpoint47g_post
398    o time-average AIM output: becomes independent from statvars time-average
399      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
400    o After TAF bug fix:
401      Tested adjoint of gmredi package.
402      Tests were done with checkpoint47 rather than with latest
403      checkpoint47f_post since the latter is broken for the adjoint
404      verification/carbon/ contains both ADM and TLM gradient checks.
405    Here they are, before they get changed/lost/stolen.
406    Mostly modif.'s to fix numerical sensitivities.
407    Gradient checks OK for
408    - GM_taper_scheme:
409      * clipping
410      * ac02
411      * linear
412      * glw91
413      * dm95
414      * ldd97
415    - GMREDI_OPTIONS:
416      * GM_VISBECK_VARIABLE_K
417      * GM_NON_UNITY_DIAGONAL
418      * GM_EXTRA_DIAGONAL
419      * GM_BOLUS_ADVEC
420    in conjunction with data.gmredi parameters to be checked in
421    in a few minutes under verification/carbon/code/
422    
423    checkpoint47f_post
424    Merging from release1_p10:
425    o modifications for using pkg/exf with pkg/seaice
426      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
427        and SEAICE_EXTERNAL_FLUXES
428      - pkg/exf CPP options EXF_READ_EVAP and
429        EXF_NO_BULK_COMPUTATIONS
430      - usage examples are Experiments 8 and 9 in
431        verification/lab_sea/README
432      - verification/lab_sea default experiment now uses
433        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
434    
435    checkpoint47e_post
436    o created a tag prior to creating a branch
437    
438    checkpoint47d_post
439    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
440      at the bottom boundary had an erroneous half slip boundary condition
441    o added bottom drag and no slip boundary condition capabilities to
442      oceanic pressure coordinates code
443    o added new verification experiment global_ocean_pressure, this experiment is
444      also described in the tutorial section of the manual
445    checkpoint47d_pre
446    
447    checkpoint47c_post
448    o Added a verification experiment for a global cubed-sphere ocean run
449      -  verification/global_ocean.cubed32x32x30
450      -  uses pkg/therm_seaice and pkg/bulk_forcing
451    
452    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
453    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
454      when using P-coordinate; only implemented for atmospheric config.
455    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
456      NOTES: requires option NONLIN_FRSURF to be "#define".
457    o update advect_xz/results/output.txt (left from checkpoint44g_post)
458    
459    checkpoint47b_post
460    Merging from release1_p9:
461    o pkg/seaice
462      - removed GOTO's and added taf directives
463      - double precision constants to reduce the g77 (Linux)
464        to F77 (SGI) differences reported in release1_p8
465    o tools/genmake
466      - added SGI options
467    o verification/testscript
468      - updated to that of checkpoint47a_post
469    o verification/global_ocean.90x40x15/input/eedata
470      - modified for SGI f77 compatibility
471    o verification/lab_sea
472      - added description of sea-ice model
473      - added missing matlab routines
474      - added test of thermodynamics parallelization
475    
476    checkpoint47a_post
477    o new pkg: aim_v23
478     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
479       for now, keep the same surface forcing as before.
480     - Part-Cell implemented into AIM; check that Heat & Water are conserved
481     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
482     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
483    o add diagnostic of surface correction term in monitor output
484    
485    o bulk_force and therm_seaice
486    - Two packages:  bulk_force (Bulk forcing)
487      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
488    - Earlier integration from Stephaine Dutkiewicz
489      and Patrick Heimbach.
490    - Two ifdef statements for compile time,
491       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
492    
493    checkpoint47
494    differentiable version of checkpoint46n_post
495    o bug fix in quasihydrostaticterms
496    o * "clean" adjoint code (in terms of extensive recomputations)
497        can now be obtained for all GMREDI options (i.e. for
498        - GM_VISBECK_VARIABLE_K
499        - GM_NON_UNITY_DIAGONAL
500        - GM_EXTRA_DIAGONAL
501        - GM_BOLUS_ADVEC )
502      * However, wrong gradient check problem remains unsolved.
503      * New CPP options have been introduced for different
504        tapering schemes
505    o external_fields_load now part of differentiation list
506    o pressure needs multiple storing;
507      would be nice to have store_pressure at beginning or
508      end of forward_step, e.g. by having phiHyd global (5-dim.)
509      (NB: pressure is needed for certain cases in find_rho,
510      which is also invoked through convective_adjustment).
511    o recomputations in find_rho for cases
512     'JMD95'/'UNESCO' or 'MDJWF' are OK.
513    o #define ATMOSPHERIC_LOADING should be differentiable
514    o ini_forcing shifted to begining of initialise_varia
515    o Incorporating QNVS line search routines into MITgcm
516      (this is separate code, and therefore not under pkg)
517      lsopt/, optim/
518    o Updated verification/carbon/
519      - #define GM_VISBECK_VARIABLE_K
520      - GM_taper_scheme    = 'ldd97'    
521    
522    checkpoint46n_post
523    Merging from release1_p8:
524    o verification/natl_box:
525      updating new external_fields_load routine
526    o New package: pkg/seaice
527      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
528      The sea-ice code is based on Hibler (1979-1980).
529      Two sea-ice dynamic solvers, ADI and LSR, are included.
530      In addition to computing prognostic sea-ice variables and diagnosing
531      the forcing/external data fields that drive the ocean model,
532      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
533      The implied surface heat flux is then stored in variable
534      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
535      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
536      non-local transport term.  Because this call precedes model
537      thermodynamics, temperature under sea-ice may not be "exactly" at
538      the freezing point by the time theta is dumped or time-averaged.
539      N.B.: fairly large differences in accuracy occur across
540            different platforms/compilers; comparison between
541            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
542            generated output gives:
543       T           S           U           V
544      C D M    c        m  s        m  s        m  s        m  s
545      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
546      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
547      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
548    
549      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
550    o GAD:
551      - generated new common blocks to account for call of
552        same gad routines with differing traceridentities
553        (needed to modify tracerIdentity indices in GAD.h)
554      - generated separate common blocks for case useCubedSphereExchange
555        (Department of Futurology)
556      - parameter lists to gmredi_?transport: added tracerIdentity
557      - added new key indices to tamc.h
558    o external_fields_load:
559      - added this routine to TAF list
560      - needed to make some common blocks global and additional storing
561        along the same lines as exf package (checkpoint_lev?_directives.h)
562    o exf:
563      updated external forcing package
564      - bug fixes carried over from ecco-branch
565        (missing OBCS_OPTIONS.h in two routines)
566      - enable easy to use "no forcing".
567      - added exf I/O for atmospheric loading
568      - added exf I/O for runoff data
569      - transfered scaling between exf <-> MITgcm to exf namelist
570    o Adding new verification experiment global_with_exf.
571      This verification experiment is almost identical to the
572      global_ocean.90x40x15 experiment, except that it uses
573      the exf (and cal) package instead of the
574      external_fields_load routine (cf README file).
575    
576    checkpoint46m_post
577    o modified testscript to return -- when there are no lines of "%MON" output
578    o added new flag "quasiHydrostatic" for QH mode
579      and new routine quasihydrostaticterms()
580    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
581      New routine: mom_u_coriolis_nh()
582    o fixed sign of non-hydrostatic metric terms in u and v equations.
583      Depend on correct sign of gravitySign.
584    o added work.pc* to .cvsignore in aim directories using ifc
585    o introduced flag for controllin non-hydrostatic metric terms
586    o removed gravitySign from PARM04
587    o switched to g77/ifc from pgf77 in aim experiments
588    
589    checkpoint46l_post
590    o made convective adjustment work with pressure coordinates:
591     - changed the direction of k-loop in convective_adjustment.F for the
592       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
593     - adjusted the reference pressure k-index in convective_adjustment.F
594     - adjusted the convection condition in convect.F (in analogy to
595       calc_ivdc.F)
596     - convective_adjustment no longer computes anything on the halos
597     - removed the warnings about negative salinity from find_rho.F and
598       find_alpha.F; instead the new routine look_for_neg_salinity, called
599       at the beginning of find_rho, find_alpha, and find_beta, does a
600       check of the entire slice, if CPP-option
601       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
602    checkpoint46l_pre
603    
604    checkpoint46k_post
605    o fixed the verification/global_ocean.90x40x15 experiment:
606     - new bathymetry (the world according to A., JMC, and M.)
607     - new initial fields and forcing fields (*.bin files)
608     - new POLY3.COEFFS (for the next release one should switch to a full
609       equation of state: JMD95P or MDJWF)
610     - fixed several errors and redundancies in the data file
611     - experiment uses looped cells
612     - added matlab directory with diagnostic scripts for plotting of output
613    
614    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
615     - read AIM physics parameters from a file (data.aimphys)
616     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
617    
618    checkpoint46j_post
619    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
620    o move wVel computation at the end of the time step, in S/R integr_continuity
621    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
622    o update timeave pkg for wVel diagnostic.
623    checkpoint46j_pre
624    
625    checkpoint46i_post
626    o Clean up AIM package (and keep the results unchanged):
627      include CPP_OPTION and use IMPLICT NONE in all routines ;
628      declare all the variables _RL ; use _d 0 for all numerical constants.
629      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
630    
631    checkpoint46h_post
632    o cleaned up the use of rhoNil and rhoConst.
633      - rhoNil should only appear in the LINEAR equation of state, everywhere
634        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
635        and the dynamical equations are all divided by rhoConst
636    o introduced new parameter rhoConstFresh, a reference density of fresh
637      water, to remove the fresh water flux's dependence on rhoNil. The default
638      value is 999.8 kg/m^3
639    o cleanup up external_forcing.F and external_forcing_surf.F
640      - can now be used by both OCEANIC and OCEANICP
641    checkpoint46h_pre
642    
643     Added code to convert surface volume flux (fresh water) into
644     a mass flux when using P coordinates in the ocean (OCEANICP).
645     Note: It assumes you have set rho0=rhoConst=density of fresh water.
646    
647    checkpoint46g_post
648    o Include a new diagnostic variable phiHydLow for the ocean model
649      - in z-coordinates, it is the bottom pressure anomaly
650      - in p-coordinates, it is the sea surface elevation
651      - in both cases, these variable have global drift, reflecting the mass
652        drift in z-coordinates and the volume drift in p-coordinates
653      - included time averaging for phiHydLow, be aware of the drift!
654    o depth-dependent computation of Bo_surf for pressure coordinates
655      in the ocean (buoyancyRelation='OCEANICP')
656      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
657        Theta, Salinity, and Pressure in the parameter list. This routine is
658        presently contained in find_rho.F. This routine does not give the
659        correct density for 'POLY3', which would be a z-dependent reference
660        density.
661    o cleaned up find_rho
662      - removed obsolete 'eqn' from the parameter list.
663    o added two new verification experiments: gop and goz
664      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
665    checkpoint46g_pre
666    
667    checkpoint46f_post
668    o Enable tangent linear (forward mode) gradient checks:
669      - extended active file handling to g_... files
670      - added TANGENT_SIMULATION to theSimulationMode
671      - extended grdchk package accordingly
672    o added tangent linear setup in verification/carbon/code_ftl
673    o added adjoint setup in verification/front_relax/code_ad
674    
675    checkpoint46e_post
676    o Added new equation of state -> MDJWF
677      - EOS of McDougall et al., 2002, JAOT, submitted
678      - caveat: the equation of state is only valid for a smaller (more
679        realistic?) range of values than JMD95P/Z and UNESCO
680      - added masks to the calculation of pressure in store_pressure
681      - added more check values for density in check_eos (ini_eos.F), some of
682        the old check values are out of the range of the MDJWF-eos, so don't
683        expect perfect matches for those
684    checkpoint46e_pre
685    
686    checkpoint46d_post
687    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
688      'OCEANICP', also initialised field pressure correctly in ini_eos in the
689      case of pressure coordinates. eosType='JMD95Z' in
690      combination with buoyancyRelation='OCEANICP' now causes an error.
691    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
692      in find_alpha/beta.
693    checkpoint46d_pre
694    
695    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
696      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
697    
698    checkpoint46c_post
699    o Changes necessary for ocean in p-coordinates
700     -  Added new buoyancy relation = 'OCEANICP'
701     -  Added new parameters = gravitySign (this used to be contained inside
702        the factor dRdZ which I added when we first switched to R coordinates).
703     X GM/Redi is not compatible (yet)
704     X bottom drag and no-slip need to be debugged.
705    checkpoint46c_pre
706    
707    checkpoint46b_post
708    o Added new equation of state -> JMD95Z and JMD95P
709      - EOS of Jackett and McDougall, 1995, JAOT
710      - moved all EOS parameters into EOS.h
711      - new routines ini_eos.F, store_pressure.F
712    o Added UNESCO EOS, but not recommended because it requires
713      in-situ temperature (see JMD95)
714    o Modified formatting for knudsen2.f in utils/knudsen2 and added
715      unesco.f to be used with POLY3
716    checkpoint46b_pre
717    
718    checkpoint46a_post
719    o Added (atmospheric) pressure loading
720      - new field in FFIELDS.h, etc...
721      - new cpp flag ATMOSPHERIC_LOADING
722    o Changed hFacC to _hFacC in calc_phi_hyd.F
723    o Added SHORTWAVE_HEATING to some files for consistency
724    checkpoint46a_pre
725    
726    checkpoint46
727    further merges from release1_p5
728    o new ctrl package
729      - adopted from ECCO environment to enable optimization
730      - added Eliassen Palm fluxes to controls
731    o added Eliassen Palm flux controls to gradient check package
732    o cost package
733      - Compatible with new ctrl package
734      - added Eliassen Palm cost hooks
735      - modif's of existing cost functions
736    o Adjoint-related bug fixes in kpp:
737      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
738      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
739    o autodiff package
740      - flow directives:
741        + new for S/R do_the_model_io
742        + enhanced for S/R checkpoint
743        + new gmredi.flow
744      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
745        disable adcommon.h/g_common.h by default.
746      - fixed problem for adjoint of global_max
747    o modified verification/carbon/
748    o New setup for adjoint of global_ocean
749    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
750    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
751    o incorporated hooks for sponge layer code (external_forcing.F)
752    
753    checkpoint45d_post
754    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
755    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
756      (affects plume_on_slope "cg2d" output)
757    o add new parameter deltaTfreesurf for free-surface time stepping
758    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
759    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
760    o change phiMin in exp1 (to agree with documentation)
761    o add new flags:
762     - T,S forcing inside/outside Adams-Bashforth
763     - turn off temp,salt advection and/or forcing
764     - for each tracer, define internal flag for multiDimAdvection & A-B
765    o monitor: change definition of KE to check conservation of Energy
766    
767    checkpoint45c_post
768    o Removed f90 comments ("!")
769    o Modified initialisations to enable exf package for MITgcm
770      (without invoking ECCO_PACKAGE).
771    o modifications to gradient check package (Martin Losch)
772      - enable centered differences
773      - modified format of standard output
774    
775    checkpoint45b_post
776    o cleaned exchange calls in cg2d
777    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
778    o included CPP option SINGLE_LAYER_MODE in thermodynamics
779      to configure barotropic setup (Martin Losch)
780    o moved some initialisations within bi,bj loop in dynamics
781      (TAF flow dependency)
782    o in initialise_varia, moved call packages_init_variables
783      before convective_adjustment_init
784      (corresponding adjustment of TAF tape initialisation).
785    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
786    
787    checkpoint45a_post
788    o compute Rho over the whole domain (extend iMin,jMin indices)
789    o specific exchange for X-slice domain (case Ny=1)
790    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
791    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
792    
793    checkpoint44h_post = checkpoint45
794    o Fix to restore differentiability:
795      place at which packages_init_variables is called in
796      initialise_varia is crucial for reverse control flow.
797    o modifications in GMRedi to enable stable adjoint
798      (corresponding modif's in thermodynamics, dynamics)
799    o added missing hook for sponge layer code in external_forcing
800    o modified test cost functions
801    o storing in gad_advection (plus removal of write(0,*)!
802    o missing headers TR1.h added in convective_adjustment routines
803    o errorMessageUnit set non-equal zero in eeboot
804      (conflict on some platforms, e.g. IBM SP3)
805    o modified carbon verif.
806    
807    checkpoint44h_pre
808    o vertical grid option: allow to put the Interface at the middle between
809      2 cell-centers ; replace delZ in pkg/kpp by drF.
810    o GM Advective form: Tracers are advected using the residual transport (=
811      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
812    
813    checkpoint44g_post
814    o fix surface correction term in multiDimAdvection (affects plume_on_slope
815      results) ; ifdef missing in thermodynamics.F
816    
817    checkpoint44f_pre,checkpoint44f_post
818    o added PTRACERS package
819      This allows an arbitrary number of passive tracers to be integrated
820      forward simultaneously with the dynamicaly model.
821      + Implemented so far:
822        - basic forward algorithm (time-stepping, advection, diffusion, convection)
823        - I/O and checkpointing
824        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
825      + Not implemented so far:
826        - KPP
827        - OBCS
828      + No specific example supplied (yet) but global_ocean.90x40x15 has the
829        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
830        line in data.pkg.
831      + This package is disabled by default since it increases storage.
832    
833    
834    o testscript: added -cleanup option
835    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
836                 b) enable to filter 2D fields.
837    
838    checkpoint44e_pre,post
839    o re-wrote convective adjustment to use pre-calculated weights
840      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
841      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
842      Original calls to convect() still in place.
843    
844    chkpt44d_pre,post
845    o added missing EXCLUDE_MONITOR flags
846    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
847      (incompatible typ in MIN/MAX expressions caused problems
848      on IBM SP3)
849    o in genmake added variable MAKEDEPEND
850      plus resetting for case SunOS
851    o added timer_stats.c routine for IBM SP3
852    o removed variables in dynamics
853    !!! I forgot to create tag chkpt44d_pre !!!
854    !!! But chkpt44d_pre = chkpt44c_post    !!!
855    
856    o real fresh water flux implemented with non-linear free-surface.
857    
858    chkpt44c_pre,post
859    o few fix (mask in shap_s2, EmPmR in external_field_load,
860      USE_NATURAL_BCS in solve_for_P);
861    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
862    
863    checkpoint44b_pre/_post
864    o merge of relevant stuff from the ecco-branch:
865      - genmake: removed $S64 overwrite for case SunOS
866      - pkg/exf: update and corrections for field swapping and obcs
867      - pkg/ecco: parameter lists for the_model_main, the_main_loop
868                  harmonized between ECCO and MITgcm
869      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
870                      updated checkpointing_lev... lists for obcs
871      - model/src: minor changes in forward_step, plot_field
872                   added directive for divided adjoint in the_main_loop
873      - pkg/mdsio: added mdsio_gl_slice
874    
875    o check parameters & config (chkpt44a_pre,post)
876    o OBC and NonLin_FrSurf.
877    
878    checkpoint44
879    o fix bug in mom_vi_del2uv
880    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
881    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
882    o update AIM experiments (NCEP input files)
883    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
884    o added some stuff for AD
885    
886    checkpoint43
887    o added two new advection tests
888    o added global 4x4 degree ocean test
889    o added test of H&S94 with free surface on cube
890    o some final mods for gradient check, adjoint,...
891    
892    checkpoint42
893      Fixed AD-related problems:
894    o Store directives up-to-date with re-arranged Adams-Bashforth
895      (mainly thermodynamics.F)
896    o New store directives for multi-dim. advection schemes
897      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
898      * new common block and key passkey
899      (mainly gad_advection.F)
900    o Modified store directives for split of dynamics/thermodynamics
901      for the case ALLOW_KPP
902    o Cleaned argument list for timestep_tracer.F
903    
904    checkpoint41
905    o re-formatted/added comments in prologues of key subroutines
906      to work with protex
907    
908    checkpoint40
909    o moved calc_gs, calc_gt and calc_tr1 back to model/src
910    o added FLT (floats) package from Arne along with demo. experiment
911    o re-arranged Adams-Bashforth scheme for tracers to allow easier
912      implementation of forward-in-time forcing terms
913    o more mods for non-linear free-surface including new variable
914    o modified multi-dim method to work on cube
915    o bug fix in KPP (from DM)
916    
917    checkpoint40pre9
918    o added DST advection schemes
919    o fix MPI bug on SGI's
920    o modifications for non-linear free-surface
921    o fixed conditionals for fixed flow/passive tracer only mode
922    o added tension/strain form of stress tensor
923    o changes to commenting of arguments for TAF/TAMC
924    o added/updated many matlab scripts
925    o added multi-dimensional advection method for tracers
926      
927    checkpoint40pre8
928    o new package rw/
929      Added method for dumping intermediate local arrays:
930      mdsio_writetile - same as mdsio_writefield except works from inside
931                        bi,bj loop
932      mdsio_writelocal - same as mdsio_writetile except works for local
933                         arrays
934      write_local_r? - higher-level wrapper for mdsio_writelocal
935      Controlled by diagFreq. Defaults to zero (ie. no dumps)
936      Example given at end of mom_vecinv.F that dumps some local arrays.
937    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
938      control flux-form versus vector invariant code.
939      Switch is runtime flag vectorInvariantMomentum (defaults to false)
940      or genmake -DISABLE ...
941    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
942      (additional storing is now needed for case vecinv;
943      currently nothing implemented to switch this storing off
944      in case fluxform is used since no CPP flag available).
945    
946    checkpoint40pre7
947    o bug fix in dynamics.F
948      calc_viscosity called before k=1,Nr loop.
949    o added some #ifdef's ALLOW_PASSIVE_TRACER
950    o cleaned initialisations in ctrl_map_ini
951      related to TAF
952    
953    checkpoint40pre6
954    o split dynamics into thermodynamics & dynamics
955    o corresponding split of calc_diffusivity into
956      calc_diffusivity, calc_viscosity
957      (kpp_calc_diff, kpp_calc_visc).
958    o Added diffkr, kapgm to control variables
959    o bug fix in gmredi_slope_limit for ldd97
960    
961    checkpoint40pre5
962    o proper initialization of Adams-Bashforth time stepping
963      + uses forward step for very first step of model (iter=0)
964    o re-generated *all* output since almost all output is modified by this
965      change (sorry but we've been putting this one off for about 2 years)
966      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
967        *not* regenerated since they are already out of date and I don't
968        want to create the impression that they are suddenly working.
969    o removed KAP stuff for DEC's
970    o modified/added many .cvsignore files in */code and */input
971    o added new expt "solid-body.cs-32x32x1"
972      + this uses an alternative form of ini_curvilinear_grid.F which
973        is not necessarily any better than the current one...
974    
975    checkpoint40pre4
976    o added re-initialisations of utrans,vtrans,rtrans in
977      calc_common_factors which are crucial for TAF.
978    o extended iMin,jMin range for calc_common_factors,
979      calc_diffusivity
980    o added option ALLOW_PASSIVE_TRACER
981    o a few minor updates and fixes
982    
983    checkpoint40pre3
984    o created calc_gtr1.F for gad package
985    o split the_main_loop and re-introduced forward_step
986    o some recomputations of nIter0 for TAMC
987    
988    checkpoint40pre2
989    o Updated to latest branch of AJA, JMC
990    o Added gradient check package
991    o Added routines for passive tracer handling
992    o Added carbon sequestration sensitivity experiment
993    
994    checkpoint39
995     o Modifications and fixes to support TAMC
996       (mainly missing or wrong directives)
997     o Corrected common blocks when fooling TAMC to produce adjoint I/O
998       in addummy_in_stepping
999     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1000     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1001     o Included following packages:
1002       cal: calendar
1003       exf: external forcing
1004       ecco: essential routines to control use of cal, exf
1005             (NB: this is not the full ECCO environment)
1006     o disabled some packages by default in genmake
1007    
1008    checkpoint38
1009     o see notes_c37_adj.txt
1010     o corrected wrong layer index in external_forcing_t
1011     o replaced the_main_loop/forward_step by the_main_loop
1012     o removed forceoutput from write_state
1013       (replaced criteria for initial/final state)
1014     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1015    
1016    checkpoint37
1017     o mdsio.F routine split and packaged in pkg/mdsio
1018       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1019        used unless genmake -disable=mdsio)
1020     o allow a more precise surface-geopotential gradient for the atmosphere
1021       taking into account the change in space of Alpha (=1/rho) at the surface.
1022     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1023       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1024     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1025       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1026       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1027     o Time-Average diagnostics defined as a pseudo package "timeave".
1028     o pickup files : old pickup (before c35) did not work with new code (c35
1029       and after) unless activating 2 commented lines in initialise-varia.
1030     o Non-Hydrostatic pickup file Pb fixed.
1031     o bug with Rigid-lid version (since c35) fixed.  
1032    
1033    checkpoint36
1034     o implement Crank-Nickelson barotropic time-stepping
1035     o recover Time-Average diagnostics
1036     o fix Pb in checkpoint (PR#19)
1037     o AIM become a standard package ; clean unused CPP_kees
1038    
1039    checkpoint35
1040     o subtantial rewrite of dynamics.f
1041     o allows staggered time-stepping
1042     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1043     o added bottom drag (linear + quadratic)
1044    
1045    checkpoint34
1046     o Modified exchange routines for correct reverse simulation.
1047     o Added verification output to comply with bug fix in impldiff.F
1048       as of c33 (exp2, natl_box).
1049     o Corrected store directives in dynamics.F
1050     o Corrected array boundaries in impldiff.F
1051     o Corrected array dimensions in gmredi.
1052       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1053     o Added routine GLOBAL_SUM_INT to global_sum.F
1054     o Added mdsio_gl.F for ECCO purposes.
1055    
1056    checkpoint33
1057     o Fixed bug in lower BC in impldiff.F
1058     o Fixed confusion about units of forcing arrays in FFIELDS.h
1059       namely Fu,Fv,Qnet,Qsw,EmPmR:
1060       - Removed verification/natl_box/code/external_fields_scale.F
1061         (did not differ from that in model/src)
1062       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1063         (see FFIELDS.h for description)
1064       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1065         kpp_calc.F and kpp_transport_t.F
1066       - Removed model/src/external_fields_scale.F and calls to it
1067       - verification/natl_box uses flux data with "atmospheric" sign so
1068         a special version of external_fields_load.F is used to
1069         change the data as it's read in. This way, the arrays
1070         have the right units and signs at all times tha a user could
1071         possibly use them.
1072     o Corrected genmake to delete a temporary file during configuration
1073    
1074    checkpoint32
1075     o Scaling of forcing fields moved from external_forcing.F to
1076       external_fields_scale.F, called directly after loading fields.
1077     o Surface relaxation terms added to surface tendency fields in
1078       extra subroutine.
1079     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1080       fields.
1081     o Changes in GMRedi to comply with packaging structure.
1082     o Modifications and bug fixes in KPP package.
1083     o Verification experiment for KPP added (verification/nat_box/)
1084    
1085    checkpoint31
1086     o Packages interface brought in line with defined standard
1087       -> new routines packages_...F
1088       -> changes in initialise_fixed.F, initialise_varia.F
1089       -> enables initialisation interface for ECCO package
1090     o Rescaling of external forcing fields immediately after read
1091       (removed from external_forcing.F)
1092       -> new: surface_fields_scale.F
1093       -> affects ini_foorcing.F, external_fields_load.F
1094     o Computation of surface tendencies before tendency updates.
1095       -> new: external_forcing_surf.F
1096     o Change of variable names useGMRedi, useKPP, useECCO
1097     o Further changes in dynamics.F, impldiff.F for TAMC
1098     o Tested for experiments 0, 2, 4.
1099       - not yet tested for GMRedi.
1100       - not yet tested for KPP.
1101    
1102    checkpoint30
1103     o Updates for OBCs
1104     o New experiment for test OBCs (internal_wave)
1105     o New output.txt in verification/exp4/results/
1106     o Updates for KPP: calculation of viscosity corrected, new variables
1107       kpp_dumpFreq and kpp_taveFreq
1108     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1109       and entry for T90 in genmake
1110    
1111    checkpoint29
1112     o packaged KPP and GM/Redi
1113    
1114    checkpoint28
1115     o Corrected initialization of hFacMin for difference vertical coordinates
1116     o Modified calculation of partial cell thickness to more robust algorithm
1117     o config_summary.F: replaced write_1D_... by write_0D_...
1118       read_write.F: added subroutines write_0D_...
1119     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1120       included some initialisations required for TAMC.
1121     o routine calc_isoslopes: modified sqrt computation to make it
1122       differentiable for zero argument.
1123     o routines dynamics, impldiff:
1124       included store directives and tape key computations required for TAMC.
1125     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1126    
1127    checkpoint27
1128     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1129       formulation works properly with variable resolution.
1130     o restructured the calling tree between the_model_main() and dynamics()
1131     o split initialise() into initialise_fixed() and initialise_varia()
1132     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1133       in new routine ini_psurf()
1134    
1135    checkpoint26
1136     o moved some #ifdef in optional routines to encompass everything
1137       except the argument declarations. This was using up some memory.
1138     o fixed macros like _ADT to work with both versions of Linux cpp
1139     o cleaned up some unused and uninitialized variables
1140       (helps when debugging with strict compile options)
1141     o split up CPP_EEOPTIONS.h into options and macros
1142       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1143     o patch for 2 processor JAM mode
1144    
1145    checkpoint25
1146     o updates for OBCs and NH
1147     o dramatically reduced memory usage
1148     o added "JAM" routines for use on Artic network
1149     o parameterization of convection by implicit vertical diffusion
1150     o added a diagnostic of convective index
1151     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1152       (this is was partly for OBCs and NH but also in anticipation of
1153        an explicit free-surface option)
1154     o initial state input files for U and V
1155    
1156    checkpoint24
1157     o Removed some spurious "REAL"s
1158     o Updated KPP to latest version from JPL
1159     o Added a COS(latitude) in horizontal viscosity
1160    
1161    checkpoint23
1162     o Added del^4 diffusion for salt and temperature
1163     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1164    
1165    checkpoint22
1166     o Made many small changes: implicit none, format(i5), etc...
1167     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1168    
1169    checkpoint21
1170     o Introduced new I/O package that supports direct-access records (mdsio.F)
1171     o Split-up mid-level I/O routines
1172     o Updated input data for experiments 0,1,2,4 and 5
1173     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1174    
1175    checkpoint20
1176     o Tidied up open-boundaries some more
1177     o Added non-hydrostatic code
1178     o Fixed some input data
1179     o Modified MPI start-up to work in "coupled" context.
1180    
1181    checkpoint19
1182     o Tidied up directory structure for verification experiments.
1183     o Added new code for open boundaries.
1184     o Corrected advective terms near boundaries.
1185     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1186     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1187     o Split default parameters out of ini_parms.F into set_defaults.F.
1188    
1189    checkpoint18
1190     o Further changes for optional code generation with
1191       CPP - ugh!
1192    
1193    checkpoint17
1194     o Beginning to incorporating modularity
1195       for supporting atmos. and ocean configs.
1196     o Small changes for TAMC complinace
1197     o New ultra simple test case. Barotropic box
1198       configuration "exp0".
1199    
1200    checkpoint16
1201     o Minor changes to exchange routines to support
1202       accumulation in reverse mode. Adjoint of an
1203       assignment is an addition.
1204     o Changes to support compilation by TAMC (LR(1)
1205       syntax) and by g77 under Linux ( 72 character
1206       limit ).
1207    
1208    checkpoint15
1209     Rewrote exchange routines to allow
1210     o General tile <-> tile connectivity.
1211     o TAMC reverse mode flag ( is this really needed? )
1212     o Variable width overlap and exchange region widths.
1213     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1214       shmput/shmget, VIA, SYSV shmem and every other cool
1215       communication method.
1216    
1217    checkpoint14
1218     Consistent isomorphism chages made. These allow dynamical core
1219     to support both pressure and meters as a vertical coordinate.
1220    
1221    checkpoint13
1222     Release which corrects global_max problem and a couple
1223     of KGM time-averaging diagnostic errors. Also contains
1224     a double-gyre experiment setup as well as the baseline
1225     4 degree global template. The double gyre template is
1226     organised to allow it to be applied automatically to
1227     the baseline configuration.
1228    
1229    branch-point-rdot
1230     A few tidy-ups have been made bt the real point of this
1231     check-point (excuse the pun) is to allow a branch to be
1232     made for the purposes of adding the rDot alterations.
1233     I don't want to commit the rDot to the main-trunk until
1234     we've actually tested it...
1235    
1236  checkpoint12  checkpoint12
1237   Tidy up and added generic genmake script (formerly   Tidy up and added generic genmake script (formerly
1238   configure script).   configure script).

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