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revision 1.6 by adcroft, Mon Jun 22 16:09:37 1998 UTC revision 1.190 by edhill, Tue Oct 21 15:29:20 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o incorporating changes to get TAMC/TAF working in genmake2
7      - added new TAMC/TAF targets to the Makefile
8      - various cleanups related to package handling
9    
10    checkpoint51l_post
11    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
12     - faster algorithm for cal_addtime.F
13     - higher precision arithmetic, where needed
14     - pkg/exf *startdate variables changed from calendar date to
15       model integration time
16    
17    checkpoint51l_pre
18    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
19    o enable to apply restoring on S & T only in a latitude band.
20    o update output (external_forcing_surf modif. change truncation errors)
21       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
22    
23    checkpoint51k_post
24    o change default to: useNHMTerms=.FALSE.
25     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
26       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
27     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
28        exp1, ideal_2D_oce
29     - change data file of oceanic exp (leave the results unchanged for now)
30       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
31    o set gravitySign automatically according to the vertical coordinate used
32      (and change sign: back to "logical" value: +1 when R increases downward)
33    o added an include barrier to the default CPP_OPTIONS.h and
34      removed the #include "PACKAGES_CONFIG.h" from it
35    o fix a bug in mom_fluxform (from chk51j_post)
36    
37    checkpoint51j_post
38    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
39    o adjusted some flow directives (dynamics, thermodynamics)
40    o added cubed-sphere case to test cost function
41    o heckpoint_lev?_directives.h now include
42      pkg-specific directives, whenever those are enabled.
43    o Moving pkg-specific flow directives to corresponding pkg
44      Moving pkg-specific differentiation list to corresponding pkg
45      Moving pkg-specific checkpoint-lev storing to corresponding pkg
46      ---> conventions are
47           - pkg_ad.flow
48           - pkg_ad_diff.list
49           - pkg_ad_check_lev?_dir.h
50    
51    checkpoint51i_post
52    o merge of the branch-genmake2
53      - knowingly breaks the older genmake
54      - automatic generation of all ALLOW_${PKG_NAME} defines
55      - new testreport supersedes older testscript
56    o large number of package inclusion and header cleanups
57    checkpoint51i_pre
58    
59    o new output for adjoin of global ocean vector invariant
60    o fix for checkpoint of thermodynamic seaice and bulk_force
61    o Steph gchem various cleanups
62    
63    checkpoint 51h_pre
64    o fixed some single quotes
65    o modify gchem pkg to be more versatile
66    o modifications to clean up dic pkg
67    o add pkg/cfc
68    
69    checkpoint51g_post
70    o provide links for ARPACK and ADM*TLM
71    o start removing verification/vero/
72    o update AD-related stuff
73      (in particular some IF-statements in model/src/ routines)
74    o adding to verification/global_ocean.90x40x15/ adjoint of
75      vector invariant setup
76    
77    checkpoint51f_post
78    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
79    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
80      of tracer Green's fucntions for ocean inversion project.
81    
82    checkpoint51f_pre
83    o Added on-the-fly spatial interpolation capability
84        "USE_EXF_INTERPOLATION" to pkg/exf.
85      - This is a temporary Cartesian-grid hack until
86        the super-duper ESMF coupler becomes available.
87      - See verification/global_with_exf/README for usage example.
88      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
89        flags and modified pkg/seaice accordingly.
90    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
91        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
92        non-local transport term.
93    
94    checkpoint51e_post
95    o pkg/mom_vecinv:
96      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
97      - add time-ave diagnostic of vorticity advection.
98    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
99    o atmospheric geopotential: - include water vapor effect;
100                                - use p^kappa in p* scaling.
101    o land pkg: read initial state from files.
102    o AIM : add stratospheric drag in the upper level
103    
104    checkpoint51d_post
105    o change function ILNBLNK (=> last non-blank char.) to return zero
106      (instead of the string length) when the string. char is empty
107    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
108    o modif's to restore TAMC compatibility
109      - avoid "_d" constructs in PARAMETER declarations
110      - avoid interrupting lines by comment lines
111    o Use cluster local disks for purely local I/O
112      vs. globally visible disks needed for ctrl stuff
113      (merged from ecco-branch)
114      - new active_file_loc... and mdsio_..._loc routines
115      - affected packages: autodiff, ctrl, grdchk, mdsio
116    
117    checkpoint51c_post
118    o introducing integer flag debugLevel
119      - debLevZero: suppress all output
120      - debLevA: standard
121      - debLevB: equivalent to current debugMode=.TRUE.
122    o introducing pathname variable mdsioLocalDir for mdsio
123      that can be specified at runtime
124      (relevant for cluster I/O to local disk)
125    `
126    >>>checkpoint51b_post
127    adjoint of ptracers
128    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
129    o extended state in checkpoint_lev?, etc.
130    o alternative ctrl/cost with tr1 or ptracer
131    o new comlev1_bibj_ptracers
132    o new ptracers.flow
133    o made ptracers_forcing same as external_forcing_s
134    o added verification for adjoint with ptracers
135      - adm. grdchk fail so far
136      - tlm. grdchk OK
137      - checked tapelev/comlev recomputations: OK
138    <<<checkpoint51b_pre
139    
140    checkpoint51a_post
141    o added code for biogeochemistry package
142      - new pkgs: dic, gchem
143      - new subroutine in ptracers
144    o modify code for biogeo packages
145      - in model/src and pkg/ptracers
146    
147    checkpoint51
148    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
149      - autodiff, ctrl, exf, grdchk, seaice
150      kept separate packages
151      - cost, ecco, obcs
152    o updating verification/internal_wave, verification/lab_sea
153      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
154    
155    checkpoint50i_post
156    o Preparing next differentiable checkpoint and sync
157      of MAIN vs. ecco-branch
158      - 1st step: this one is differentiable
159      - 2nd step: next(! not this) checkpoint will have updated packages
160                  from ecco-branch)
161    
162    checkpoint50h_post
163    o new package "land": provide surface BC for AIM.
164    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
165    o AIM: use true log-P extrapolation for near surface temp (= as in
166        F.Molteni paper) ; update aim.5l_cs output.
167    o New variable in PARM03 for more flexible pickups
168    o somewhat cleaned package initialisation sequence for
169      ctrl/ cost/ ecco/ in packages_... routines
170    
171    checkpoint50g_post
172    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
173      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
174      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
175        made the default because of faster convergence than ADI
176    
177    checkpoint50f_post
178    o exf totally restructured
179      - replaced all exf_set_ routines by one generic exf_set_gen.F
180        and made sure it's still differentiable
181      - split exf_getffields.F into new exf_bulkformulae.F
182      - exf_inscal_/exf_outscal_ suffixes consistent with field names
183      - updated adjoint/makefile and relevant verif. accordingly
184    
185    checkpoint50f_pre
186     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
187          + change Evap over land. (update aim.5l_cs output)
188     o added missing .cvsignores and made uniform across expts
189     o changed configuration of tidal_basin_2d expt
190     o added pkg/debug functions for tracing code in fatal crashes
191     o tidied pkg/monitor to use MONITOR_OPTIONS.h
192     o new fn in pkg/monitor to stop model if solution grows too big
193     o removed lots of single quotes from comments
194    
195    checkpoint50e_post
196    o make KPP work with PTRACERS
197     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
198       nearly a copy of kpp_transport_s
199     - there is no analogue to SurfaceTendencyS, so I have to use
200       gPtr(of the surface layer) instead
201    o add a new platform SunFire+mpi (SunFire 15000) to genmake
202    checkpoint50e_pre
203    
204    checkpoint50d_post
205    o change kpp output from multiple-record state files to single-record state
206      files analogous to write_state.F
207    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
208      analogous to the cg2d-related output.
209    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
210      so that writing to internal file fn (with length 512) fails.
211    checkpoint50d_pre
212    
213    checkpoint50c_post
214    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
215    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
216    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
217    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
218    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
219    
220    checkpoint50c_pre
221    Merging from release1_p13:
222    o bug fix for pkg/seaice dynamic solver
223    o Added SEAICE_initialHEFF to pkg/seaice
224    
225    checkpoint50b_post
226    o store u*,v* in gU,V instead of in guNm1,gvNm1
227    o in order to put the momForcing out of the Adams-Bashforth:
228      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
229      to timestep.F
230    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
231    o re-generate output for highly sensitive test-exp:
232       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
233    
234    checkpoint50b_pre
235    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
236    o corrected CPP option mismatch in exf_Bulk... functions for case
237      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
238    
239    checkpoint50a_post
240    o Bug fix for merging between c50 and KPP.
241      ikey was passed from thermodynamics to kpp_calc via
242      common block rather than being recomputed in kpp_calc,
243      in contradiction with new key itdkey.
244      New key ikppkey created, and tamc.h headers updated.
245    
246    checkpoint50
247    - 2nd step of merge with ecco-branch:
248      merge changes in ecco-branch back into main trunk
249    - bug fix in find_alpha
250    - more storing in gmredi_calc_tensor.F, kpp_routines.F
251    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
252    - merged some sliced AD support routines
253    
254    checkpoint49
255    merged from ecco-branch:
256    o exf:
257      - Enable initialisation of forcing fields to constant
258        (runtime) values.
259      - in exf_getffields.F
260        Reduce i-/j-loop to interior domain, discarding overlaps.
261        That also fixes wrong TAF-key computations for key_1, key_2
262        with bulf formulae.
263      - exf_init.F modify #ifdef for exf_init_evap
264      - exf_getffieldrec.F, ctrl_getrec.F
265        The following INT-usages are not safe:
266          fldsecs  = int(fldsecs/fldperiod)*fldperiod
267          fldcount = int(fldsecs/fldperiod) + 1
268        and were modified.
269    o autodiff: checkpoint_lev...
270      - updated storing for bulk formulae (some arrays were missing)
271      - added state for seaice package
272      - synchronized with main branch
273    o DIVA:
274      Modif.s in
275      - the_main_loop.F
276      - the_model_main.F
277      and added cost_final_restore.F cost_final_store.F
278      o With these changes, it is possible to fully separate
279        the first forward run to compute the cost function (mdthe_main_loop)
280        and adjoint runs over individual DIVA intervals (adthe_main_loop)
281        into separate model executions.
282        This enables better tuning of DIVA to given queue sizes.
283      o Loss of cost function value in consecutive DIVA runs is
284        fixed by storing to 'costfinal' file.
285      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
286        beginning/end of adjoint integration is accounted for.
287      The current changes apply to TAF-1.4.26.
288      TAF has one remaining bug, requiring one manual change
289      (see MITgcm manual).
290    o cal: synchronized between MAIN and ecco-branch
291    
292    checkpoint48i_post
293    o Changes to restore differentiability of code w.r.t. previous tag
294      (mostly adding new routines to make list and replacing
295      pressure by totPhiHyd).
296    o Updated and merged grdchk package
297      - has both ADM and TLM checks
298      - works for single- and multi-proc.
299      - output cleaned
300      - worked successfully for parallel DIVA
301    o genmake:
302      - Adding -platform=SP4
303      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
304    o Modif. for DIVA:
305      ctrl_unpack should not be called in intermediate DIVA interval.
306      (similar thing would apply for active files such as
307      tbar, sbar, psbar, which should not be reinitialised;
308      only relevant for ecco-branch)
309    
310    checkpoint48h_post
311    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
312    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
313    o Added SEAICE_initialHEFF to pkg/seaice
314    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
315    
316    checkpoint48g_post
317    --- EOS:
318    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
319      store total Potential in totPhyHyd for diagnostics & EOS.
320    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
321    --- Pressure/geopotential gradient:
322    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
323    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
324      ( changes results of global_ocean_pressure )
325    o NLFS + z-coord.: add eta*Rho' contribution.
326    o accurate phiHyd when using interface-W at the middle between 2 centers
327     ( changes results of ideal_2D_oce )
328    o includes r* 2nd term in potential gradient.
329    
330    checkpoint48f_post
331    Merging from release1_p12:
332    o Modifications for using pkg/exf with pkg/seaice
333      - improved description of the various forcing configurations
334      - added basic radiation bulk formulae to pkg/exf
335      - units/sign fix for evap computation in exf_getffields.F
336      - updated verification/global_with_exf/results/output.txt
337    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
338      (SBO) core products, including oceanic mass, center-of-mass,
339      angular, and bottom pressure (see pkg/sbo/README.sbo).
340    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
341      to avoid negative values in shallow regions.
342      - updated verification/natl_box/results/output.txt
343      - updated verification/lab_sea/results/output.txt
344    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
345    o Added useSingleCpuIO option (see PARAMS.h).
346    o Updated useSingleCpuIO option in mdsio_writefield.F to
347      work with multi-field files, e.g., for single-file pickup.
348    o pkg/seaice:
349      - bug fix in growth.F: QNET for no shortwave case
350      - added HeffFile for specifying initial sea-ice thickness
351      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
352    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
353      kpp_transport_t.F, forward_step.F, and the_main_loop.F
354    o pkg/seaice:
355      - adjoint-friendly modifications
356      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
357    
358    checkpoint48e_post
359    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
360    o dynamics: change definition of computational domain & adapt mom_fluxform
361      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
362    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
363        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
364        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
365        global_ocean.90x40x15 global_with_exf global_ocean_pressure
366        inverted_barometer solid-body.cs-32x32x1
367      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
368    
369    checkpoint48d_post
370    o in preparation for r*:
371     a) use pre-computed gradient of hydrostatic potential:
372        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
373     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
374        => affects results of glob_oce_pressure (different truncation error)  
375      update output.txt of ideal_2D_oce & global_ocean_pressure
376    
377    checkpoint48d_pre
378    o in preparation for r*:
379      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
380      pass the 2 comp. of the grad. as arguments to momentum S/R.
381      but for the moment, only used if it does not change the results.
382    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
383    
384    checkpoint48c_post
385    Modifications in treatment of initial flux forcing controls
386    to avoid extra storing of flux fields.
387    
388    checkpoint48c_pre
389    o Added tidal_basin_2d experiment (currently 1D!)
390    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
391    
392    checkpoint48b_post
393    o r* coordinate added in #ifdef NONLIN_FRSURF block.
394     (modification to pressure gradient not yet implemented)
395    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
396      (for U & V) that are used for vertical advection of momentum.
397    
398    checkpoint48a_post
399    o In preparation for r*, use temp. array to compute vertical transport
400       in flux-form momentum pkg. => change results of few test-exp.
401      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
402                        lab_sea, natl_box & plume_on_slope
403    
404    checkpoint48
405    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
406    
407    checkpoint47j_post
408    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
409    o moved adexch from forward_step to addummy_in_stepping
410    o added exch in ctrl_map_...
411    o aveFreq.=0. at end of cost_final to avoid overwrite in
412      reverse checkpointing loop
413    o Yet more changes in gmredi:
414      * adgmredi_calc_tensor
415        avoiding all recomputation of gmredi_slope_limit
416      * adgmredi_x/y/rtransport
417        added flag for excessive storing to avoid recomp. of
418        u/v/rtans, dTdx/y/z
419        -> this is not really necessary and very memory-consuming
420      * adgmredi_slope_psi:
421        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
422      * gmredi_slope_limit
423        re-activated full calculation of taperfct for case 'ac02'
424    o updating verification/ adjoints of carbon, global_ocean.90x40x15
425    
426    checkpoint47i_post
427    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
428    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
429      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
430    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
431    o gmredi: fix few bugs.
432    
433    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
434    This will be a good checkpoint to plug into the ecco-branch.
435    o few modif.'s to get latest version adjointed
436      (mainly kick out code in ini_linear_phisurf)
437    o modif's to run adjoint with exactConserv
438    o case GM_BOLUS_ADVEC should be cleaned
439      S/R gmredi_slope_psi should be cleaned
440    o verification/carbon now has exactConserv=.TRUE.
441    
442    checkpoint47g_post
443    o time-average AIM output: becomes independent from statvars time-average
444      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
445    o After TAF bug fix:
446      Tested adjoint of gmredi package.
447      Tests were done with checkpoint47 rather than with latest
448      checkpoint47f_post since the latter is broken for the adjoint
449      verification/carbon/ contains both ADM and TLM gradient checks.
450    Here they are, before they get changed/lost/stolen.
451    Mostly modif.'s to fix numerical sensitivities.
452    Gradient checks OK for
453    - GM_taper_scheme:
454      * clipping
455      * ac02
456      * linear
457      * glw91
458      * dm95
459      * ldd97
460    - GMREDI_OPTIONS:
461      * GM_VISBECK_VARIABLE_K
462      * GM_NON_UNITY_DIAGONAL
463      * GM_EXTRA_DIAGONAL
464      * GM_BOLUS_ADVEC
465    in conjunction with data.gmredi parameters to be checked in
466    in a few minutes under verification/carbon/code/
467    
468    checkpoint47f_post
469    Merging from release1_p10:
470    o modifications for using pkg/exf with pkg/seaice
471      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
472        and SEAICE_EXTERNAL_FLUXES
473      - pkg/exf CPP options EXF_READ_EVAP and
474        EXF_NO_BULK_COMPUTATIONS
475      - usage examples are Experiments 8 and 9 in
476        verification/lab_sea/README
477      - verification/lab_sea default experiment now uses
478        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
479    
480    checkpoint47e_post
481    o created a tag prior to creating a branch
482    
483    checkpoint47d_post
484    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
485      at the bottom boundary had an erroneous half slip boundary condition
486    o added bottom drag and no slip boundary condition capabilities to
487      oceanic pressure coordinates code
488    o added new verification experiment global_ocean_pressure, this experiment is
489      also described in the tutorial section of the manual
490    checkpoint47d_pre
491    
492    checkpoint47c_post
493    o Added a verification experiment for a global cubed-sphere ocean run
494      -  verification/global_ocean.cubed32x32x30
495      -  uses pkg/therm_seaice and pkg/bulk_forcing
496    
497    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
498    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
499      when using P-coordinate; only implemented for atmospheric config.
500    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
501      NOTES: requires option NONLIN_FRSURF to be "#define".
502    o update advect_xz/results/output.txt (left from checkpoint44g_post)
503    
504    checkpoint47b_post
505    Merging from release1_p9:
506    o pkg/seaice
507      - removed GOTO's and added taf directives
508      - double precision constants to reduce the g77 (Linux)
509        to F77 (SGI) differences reported in release1_p8
510    o tools/genmake
511      - added SGI options
512    o verification/testscript
513      - updated to that of checkpoint47a_post
514    o verification/global_ocean.90x40x15/input/eedata
515      - modified for SGI f77 compatibility
516    o verification/lab_sea
517      - added description of sea-ice model
518      - added missing matlab routines
519      - added test of thermodynamics parallelization
520    
521    checkpoint47a_post
522    o new pkg: aim_v23
523     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
524       for now, keep the same surface forcing as before.
525     - Part-Cell implemented into AIM; check that Heat & Water are conserved
526     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
527     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
528    o add diagnostic of surface correction term in monitor output
529    
530    o bulk_force and therm_seaice
531    - Two packages:  bulk_force (Bulk forcing)
532      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
533    - Earlier integration from Stephaine Dutkiewicz
534      and Patrick Heimbach.
535    - Two ifdef statements for compile time,
536       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
537    
538    checkpoint47
539    differentiable version of checkpoint46n_post
540    o bug fix in quasihydrostaticterms
541    o * "clean" adjoint code (in terms of extensive recomputations)
542        can now be obtained for all GMREDI options (i.e. for
543        - GM_VISBECK_VARIABLE_K
544        - GM_NON_UNITY_DIAGONAL
545        - GM_EXTRA_DIAGONAL
546        - GM_BOLUS_ADVEC )
547      * However, wrong gradient check problem remains unsolved.
548      * New CPP options have been introduced for different
549        tapering schemes
550    o external_fields_load now part of differentiation list
551    o pressure needs multiple storing;
552      would be nice to have store_pressure at beginning or
553      end of forward_step, e.g. by having phiHyd global (5-dim.)
554      (NB: pressure is needed for certain cases in find_rho,
555      which is also invoked through convective_adjustment).
556    o recomputations in find_rho for cases
557     'JMD95'/'UNESCO' or 'MDJWF' are OK.
558    o #define ATMOSPHERIC_LOADING should be differentiable
559    o ini_forcing shifted to begining of initialise_varia
560    o Incorporating QNVS line search routines into MITgcm
561      (this is separate code, and therefore not under pkg)
562      lsopt/, optim/
563    o Updated verification/carbon/
564      - #define GM_VISBECK_VARIABLE_K
565      - GM_taper_scheme    = 'ldd97'    
566    
567    checkpoint46n_post
568    Merging from release1_p8:
569    o verification/natl_box:
570      updating new external_fields_load routine
571    o New package: pkg/seaice
572      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
573      The sea-ice code is based on Hibler (1979-1980).
574      Two sea-ice dynamic solvers, ADI and LSR, are included.
575      In addition to computing prognostic sea-ice variables and diagnosing
576      the forcing/external data fields that drive the ocean model,
577      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
578      The implied surface heat flux is then stored in variable
579      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
580      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
581      non-local transport term.  Because this call precedes model
582      thermodynamics, temperature under sea-ice may not be "exactly" at
583      the freezing point by the time theta is dumped or time-averaged.
584      N.B.: fairly large differences in accuracy occur across
585            different platforms/compilers; comparison between
586            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
587            generated output gives:
588       T           S           U           V
589      C D M    c        m  s        m  s        m  s        m  s
590      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
591      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
592      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
593    
594      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
595    o GAD:
596      - generated new common blocks to account for call of
597        same gad routines with differing traceridentities
598        (needed to modify tracerIdentity indices in GAD.h)
599      - generated separate common blocks for case useCubedSphereExchange
600        (Department of Futurology)
601      - parameter lists to gmredi_?transport: added tracerIdentity
602      - added new key indices to tamc.h
603    o external_fields_load:
604      - added this routine to TAF list
605      - needed to make some common blocks global and additional storing
606        along the same lines as exf package (checkpoint_lev?_directives.h)
607    o exf:
608      updated external forcing package
609      - bug fixes carried over from ecco-branch
610        (missing OBCS_OPTIONS.h in two routines)
611      - enable easy to use "no forcing".
612      - added exf I/O for atmospheric loading
613      - added exf I/O for runoff data
614      - transfered scaling between exf <-> MITgcm to exf namelist
615    o Adding new verification experiment global_with_exf.
616      This verification experiment is almost identical to the
617      global_ocean.90x40x15 experiment, except that it uses
618      the exf (and cal) package instead of the
619      external_fields_load routine (cf README file).
620    
621    checkpoint46m_post
622    o modified testscript to return -- when there are no lines of "%MON" output
623    o added new flag "quasiHydrostatic" for QH mode
624      and new routine quasihydrostaticterms()
625    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
626      New routine: mom_u_coriolis_nh()
627    o fixed sign of non-hydrostatic metric terms in u and v equations.
628      Depend on correct sign of gravitySign.
629    o added work.pc* to .cvsignore in aim directories using ifc
630    o introduced flag for controllin non-hydrostatic metric terms
631    o removed gravitySign from PARM04
632    o switched to g77/ifc from pgf77 in aim experiments
633    
634    checkpoint46l_post
635    o made convective adjustment work with pressure coordinates:
636     - changed the direction of k-loop in convective_adjustment.F for the
637       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
638     - adjusted the reference pressure k-index in convective_adjustment.F
639     - adjusted the convection condition in convect.F (in analogy to
640       calc_ivdc.F)
641     - convective_adjustment no longer computes anything on the halos
642     - removed the warnings about negative salinity from find_rho.F and
643       find_alpha.F; instead the new routine look_for_neg_salinity, called
644       at the beginning of find_rho, find_alpha, and find_beta, does a
645       check of the entire slice, if CPP-option
646       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
647    checkpoint46l_pre
648    
649    checkpoint46k_post
650    o fixed the verification/global_ocean.90x40x15 experiment:
651     - new bathymetry (the world according to A., JMC, and M.)
652     - new initial fields and forcing fields (*.bin files)
653     - new POLY3.COEFFS (for the next release one should switch to a full
654       equation of state: JMD95P or MDJWF)
655     - fixed several errors and redundancies in the data file
656     - experiment uses looped cells
657     - added matlab directory with diagnostic scripts for plotting of output
658    
659    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
660     - read AIM physics parameters from a file (data.aimphys)
661     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
662    
663    checkpoint46j_post
664    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
665    o move wVel computation at the end of the time step, in S/R integr_continuity
666    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
667    o update timeave pkg for wVel diagnostic.
668    checkpoint46j_pre
669    
670    checkpoint46i_post
671    o Clean up AIM package (and keep the results unchanged):
672      include CPP_OPTION and use IMPLICT NONE in all routines ;
673      declare all the variables _RL ; use _d 0 for all numerical constants.
674      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
675    
676    checkpoint46h_post
677    o cleaned up the use of rhoNil and rhoConst.
678      - rhoNil should only appear in the LINEAR equation of state, everywhere
679        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
680        and the dynamical equations are all divided by rhoConst
681    o introduced new parameter rhoConstFresh, a reference density of fresh
682      water, to remove the fresh water flux's dependence on rhoNil. The default
683      value is 999.8 kg/m^3
684    o cleanup up external_forcing.F and external_forcing_surf.F
685      - can now be used by both OCEANIC and OCEANICP
686    checkpoint46h_pre
687    
688     Added code to convert surface volume flux (fresh water) into
689     a mass flux when using P coordinates in the ocean (OCEANICP).
690     Note: It assumes you have set rho0=rhoConst=density of fresh water.
691    
692    checkpoint46g_post
693    o Include a new diagnostic variable phiHydLow for the ocean model
694      - in z-coordinates, it is the bottom pressure anomaly
695      - in p-coordinates, it is the sea surface elevation
696      - in both cases, these variable have global drift, reflecting the mass
697        drift in z-coordinates and the volume drift in p-coordinates
698      - included time averaging for phiHydLow, be aware of the drift!
699    o depth-dependent computation of Bo_surf for pressure coordinates
700      in the ocean (buoyancyRelation='OCEANICP')
701      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
702        Theta, Salinity, and Pressure in the parameter list. This routine is
703        presently contained in find_rho.F. This routine does not give the
704        correct density for 'POLY3', which would be a z-dependent reference
705        density.
706    o cleaned up find_rho
707      - removed obsolete 'eqn' from the parameter list.
708    o added two new verification experiments: gop and goz
709      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
710    checkpoint46g_pre
711    
712    checkpoint46f_post
713    o Enable tangent linear (forward mode) gradient checks:
714      - extended active file handling to g_... files
715      - added TANGENT_SIMULATION to theSimulationMode
716      - extended grdchk package accordingly
717    o added tangent linear setup in verification/carbon/code_ftl
718    o added adjoint setup in verification/front_relax/code_ad
719    
720    checkpoint46e_post
721    o Added new equation of state -> MDJWF
722      - EOS of McDougall et al., 2002, JAOT, submitted
723      - caveat: the equation of state is only valid for a smaller (more
724        realistic?) range of values than JMD95P/Z and UNESCO
725      - added masks to the calculation of pressure in store_pressure
726      - added more check values for density in check_eos (ini_eos.F), some of
727        the old check values are out of the range of the MDJWF-eos, so don't
728        expect perfect matches for those
729    checkpoint46e_pre
730    
731    checkpoint46d_post
732    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
733      'OCEANICP', also initialised field pressure correctly in ini_eos in the
734      case of pressure coordinates. eosType='JMD95Z' in
735      combination with buoyancyRelation='OCEANICP' now causes an error.
736    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
737      in find_alpha/beta.
738    checkpoint46d_pre
739    
740    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
741      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
742    
743    checkpoint46c_post
744    o Changes necessary for ocean in p-coordinates
745     -  Added new buoyancy relation = 'OCEANICP'
746     -  Added new parameters = gravitySign (this used to be contained inside
747        the factor dRdZ which I added when we first switched to R coordinates).
748     X GM/Redi is not compatible (yet)
749     X bottom drag and no-slip need to be debugged.
750    checkpoint46c_pre
751    
752    checkpoint46b_post
753    o Added new equation of state -> JMD95Z and JMD95P
754      - EOS of Jackett and McDougall, 1995, JAOT
755      - moved all EOS parameters into EOS.h
756      - new routines ini_eos.F, store_pressure.F
757    o Added UNESCO EOS, but not recommended because it requires
758      in-situ temperature (see JMD95)
759    o Modified formatting for knudsen2.f in utils/knudsen2 and added
760      unesco.f to be used with POLY3
761    checkpoint46b_pre
762    
763    checkpoint46a_post
764    o Added (atmospheric) pressure loading
765      - new field in FFIELDS.h, etc...
766      - new cpp flag ATMOSPHERIC_LOADING
767    o Changed hFacC to _hFacC in calc_phi_hyd.F
768    o Added SHORTWAVE_HEATING to some files for consistency
769    checkpoint46a_pre
770    
771    checkpoint46
772    further merges from release1_p5
773    o new ctrl package
774      - adopted from ECCO environment to enable optimization
775      - added Eliassen Palm fluxes to controls
776    o added Eliassen Palm flux controls to gradient check package
777    o cost package
778      - Compatible with new ctrl package
779      - added Eliassen Palm cost hooks
780      - modif's of existing cost functions
781    o Adjoint-related bug fixes in kpp:
782      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
783      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
784    o autodiff package
785      - flow directives:
786        + new for S/R do_the_model_io
787        + enhanced for S/R checkpoint
788        + new gmredi.flow
789      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
790        disable adcommon.h/g_common.h by default.
791      - fixed problem for adjoint of global_max
792    o modified verification/carbon/
793    o New setup for adjoint of global_ocean
794    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
795    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
796    o incorporated hooks for sponge layer code (external_forcing.F)
797    
798    checkpoint45d_post
799    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
800    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
801      (affects plume_on_slope "cg2d" output)
802    o add new parameter deltaTfreesurf for free-surface time stepping
803    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
804    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
805    o change phiMin in exp1 (to agree with documentation)
806    o add new flags:
807     - T,S forcing inside/outside Adams-Bashforth
808     - turn off temp,salt advection and/or forcing
809     - for each tracer, define internal flag for multiDimAdvection & A-B
810    o monitor: change definition of KE to check conservation of Energy
811    
812    checkpoint45c_post
813    o Removed f90 comments ("!")
814    o Modified initialisations to enable exf package for MITgcm
815      (without invoking ECCO_PACKAGE).
816    o modifications to gradient check package (Martin Losch)
817      - enable centered differences
818      - modified format of standard output
819    
820    checkpoint45b_post
821    o cleaned exchange calls in cg2d
822    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
823    o included CPP option SINGLE_LAYER_MODE in thermodynamics
824      to configure barotropic setup (Martin Losch)
825    o moved some initialisations within bi,bj loop in dynamics
826      (TAF flow dependency)
827    o in initialise_varia, moved call packages_init_variables
828      before convective_adjustment_init
829      (corresponding adjustment of TAF tape initialisation).
830    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
831    
832    checkpoint45a_post
833    o compute Rho over the whole domain (extend iMin,jMin indices)
834    o specific exchange for X-slice domain (case Ny=1)
835    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
836    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
837    
838    checkpoint44h_post = checkpoint45
839    o Fix to restore differentiability:
840      place at which packages_init_variables is called in
841      initialise_varia is crucial for reverse control flow.
842    o modifications in GMRedi to enable stable adjoint
843      (corresponding modif's in thermodynamics, dynamics)
844    o added missing hook for sponge layer code in external_forcing
845    o modified test cost functions
846    o storing in gad_advection (plus removal of write(0,*)!
847    o missing headers TR1.h added in convective_adjustment routines
848    o errorMessageUnit set non-equal zero in eeboot
849      (conflict on some platforms, e.g. IBM SP3)
850    o modified carbon verif.
851    
852    checkpoint44h_pre
853    o vertical grid option: allow to put the Interface at the middle between
854      2 cell-centers ; replace delZ in pkg/kpp by drF.
855    o GM Advective form: Tracers are advected using the residual transport (=
856      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
857    
858    checkpoint44g_post
859    o fix surface correction term in multiDimAdvection (affects plume_on_slope
860      results) ; ifdef missing in thermodynamics.F
861    
862    checkpoint44f_pre,checkpoint44f_post
863    o added PTRACERS package
864      This allows an arbitrary number of passive tracers to be integrated
865      forward simultaneously with the dynamicaly model.
866      + Implemented so far:
867        - basic forward algorithm (time-stepping, advection, diffusion, convection)
868        - I/O and checkpointing
869        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
870      + Not implemented so far:
871        - KPP
872        - OBCS
873      + No specific example supplied (yet) but global_ocean.90x40x15 has the
874        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
875        line in data.pkg.
876      + This package is disabled by default since it increases storage.
877    
878    
879    o testscript: added -cleanup option
880    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
881                 b) enable to filter 2D fields.
882    
883    checkpoint44e_pre,post
884    o re-wrote convective adjustment to use pre-calculated weights
885      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
886      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
887      Original calls to convect() still in place.
888    
889    chkpt44d_pre,post
890    o added missing EXCLUDE_MONITOR flags
891    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
892      (incompatible typ in MIN/MAX expressions caused problems
893      on IBM SP3)
894    o in genmake added variable MAKEDEPEND
895      plus resetting for case SunOS
896    o added timer_stats.c routine for IBM SP3
897    o removed variables in dynamics
898    !!! I forgot to create tag chkpt44d_pre !!!
899    !!! But chkpt44d_pre = chkpt44c_post    !!!
900    
901    o real fresh water flux implemented with non-linear free-surface.
902    
903    chkpt44c_pre,post
904    o few fix (mask in shap_s2, EmPmR in external_field_load,
905      USE_NATURAL_BCS in solve_for_P);
906    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
907    
908    checkpoint44b_pre/_post
909    o merge of relevant stuff from the ecco-branch:
910      - genmake: removed $S64 overwrite for case SunOS
911      - pkg/exf: update and corrections for field swapping and obcs
912      - pkg/ecco: parameter lists for the_model_main, the_main_loop
913                  harmonized between ECCO and MITgcm
914      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
915                      updated checkpointing_lev... lists for obcs
916      - model/src: minor changes in forward_step, plot_field
917                   added directive for divided adjoint in the_main_loop
918      - pkg/mdsio: added mdsio_gl_slice
919    
920    o check parameters & config (chkpt44a_pre,post)
921    o OBC and NonLin_FrSurf.
922    
923    checkpoint44
924    o fix bug in mom_vi_del2uv
925    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
926    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
927    o update AIM experiments (NCEP input files)
928    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
929    o added some stuff for AD
930    
931    checkpoint43
932    o added two new advection tests
933    o added global 4x4 degree ocean test
934    o added test of H&S94 with free surface on cube
935    o some final mods for gradient check, adjoint,...
936    
937    checkpoint42
938      Fixed AD-related problems:
939    o Store directives up-to-date with re-arranged Adams-Bashforth
940      (mainly thermodynamics.F)
941    o New store directives for multi-dim. advection schemes
942      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
943      * new common block and key passkey
944      (mainly gad_advection.F)
945    o Modified store directives for split of dynamics/thermodynamics
946      for the case ALLOW_KPP
947    o Cleaned argument list for timestep_tracer.F
948    
949    checkpoint41
950    o re-formatted/added comments in prologues of key subroutines
951      to work with protex
952    
953    checkpoint40
954    o moved calc_gs, calc_gt and calc_tr1 back to model/src
955    o added FLT (floats) package from Arne along with demo. experiment
956    o re-arranged Adams-Bashforth scheme for tracers to allow easier
957      implementation of forward-in-time forcing terms
958    o more mods for non-linear free-surface including new variable
959    o modified multi-dim method to work on cube
960    o bug fix in KPP (from DM)
961    
962    checkpoint40pre9
963    o added DST advection schemes
964    o fix MPI bug on SGI's
965    o modifications for non-linear free-surface
966    o fixed conditionals for fixed flow/passive tracer only mode
967    o added tension/strain form of stress tensor
968    o changes to commenting of arguments for TAF/TAMC
969    o added/updated many matlab scripts
970    o added multi-dimensional advection method for tracers
971      
972    checkpoint40pre8
973    o new package rw/
974      Added method for dumping intermediate local arrays:
975      mdsio_writetile - same as mdsio_writefield except works from inside
976                        bi,bj loop
977      mdsio_writelocal - same as mdsio_writetile except works for local
978                         arrays
979      write_local_r? - higher-level wrapper for mdsio_writelocal
980      Controlled by diagFreq. Defaults to zero (ie. no dumps)
981      Example given at end of mom_vecinv.F that dumps some local arrays.
982    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
983      control flux-form versus vector invariant code.
984      Switch is runtime flag vectorInvariantMomentum (defaults to false)
985      or genmake -DISABLE ...
986    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
987      (additional storing is now needed for case vecinv;
988      currently nothing implemented to switch this storing off
989      in case fluxform is used since no CPP flag available).
990    
991    checkpoint40pre7
992    o bug fix in dynamics.F
993      calc_viscosity called before k=1,Nr loop.
994    o added some #ifdef's ALLOW_PASSIVE_TRACER
995    o cleaned initialisations in ctrl_map_ini
996      related to TAF
997    
998    checkpoint40pre6
999    o split dynamics into thermodynamics & dynamics
1000    o corresponding split of calc_diffusivity into
1001      calc_diffusivity, calc_viscosity
1002      (kpp_calc_diff, kpp_calc_visc).
1003    o Added diffkr, kapgm to control variables
1004    o bug fix in gmredi_slope_limit for ldd97
1005    
1006    checkpoint40pre5
1007    o proper initialization of Adams-Bashforth time stepping
1008      + uses forward step for very first step of model (iter=0)
1009    o re-generated *all* output since almost all output is modified by this
1010      change (sorry but we've been putting this one off for about 2 years)
1011      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1012        *not* regenerated since they are already out of date and I don't
1013        want to create the impression that they are suddenly working.
1014    o removed KAP stuff for DEC's
1015    o modified/added many .cvsignore files in */code and */input
1016    o added new expt "solid-body.cs-32x32x1"
1017      + this uses an alternative form of ini_curvilinear_grid.F which
1018        is not necessarily any better than the current one...
1019    
1020    checkpoint40pre4
1021    o added re-initialisations of utrans,vtrans,rtrans in
1022      calc_common_factors which are crucial for TAF.
1023    o extended iMin,jMin range for calc_common_factors,
1024      calc_diffusivity
1025    o added option ALLOW_PASSIVE_TRACER
1026    o a few minor updates and fixes
1027    
1028    checkpoint40pre3
1029    o created calc_gtr1.F for gad package
1030    o split the_main_loop and re-introduced forward_step
1031    o some recomputations of nIter0 for TAMC
1032    
1033    checkpoint40pre2
1034    o Updated to latest branch of AJA, JMC
1035    o Added gradient check package
1036    o Added routines for passive tracer handling
1037    o Added carbon sequestration sensitivity experiment
1038    
1039    checkpoint39
1040     o Modifications and fixes to support TAMC
1041       (mainly missing or wrong directives)
1042     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1043       in addummy_in_stepping
1044     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1045     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1046     o Included following packages:
1047       cal: calendar
1048       exf: external forcing
1049       ecco: essential routines to control use of cal, exf
1050             (NB: this is not the full ECCO environment)
1051     o disabled some packages by default in genmake
1052    
1053    checkpoint38
1054     o see notes_c37_adj.txt
1055     o corrected wrong layer index in external_forcing_t
1056     o replaced the_main_loop/forward_step by the_main_loop
1057     o removed forceoutput from write_state
1058       (replaced criteria for initial/final state)
1059     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1060    
1061    checkpoint37
1062     o mdsio.F routine split and packaged in pkg/mdsio
1063       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1064        used unless genmake -disable=mdsio)
1065     o allow a more precise surface-geopotential gradient for the atmosphere
1066       taking into account the change in space of Alpha (=1/rho) at the surface.
1067     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1068       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1069     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1070       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1071       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1072     o Time-Average diagnostics defined as a pseudo package "timeave".
1073     o pickup files : old pickup (before c35) did not work with new code (c35
1074       and after) unless activating 2 commented lines in initialise-varia.
1075     o Non-Hydrostatic pickup file Pb fixed.
1076     o bug with Rigid-lid version (since c35) fixed.  
1077    
1078    checkpoint36
1079     o implement Crank-Nickelson barotropic time-stepping
1080     o recover Time-Average diagnostics
1081     o fix Pb in checkpoint (PR#19)
1082     o AIM become a standard package ; clean unused CPP_kees
1083    
1084    checkpoint35
1085     o subtantial rewrite of dynamics.f
1086     o allows staggered time-stepping
1087     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1088     o added bottom drag (linear + quadratic)
1089    
1090    checkpoint34
1091     o Modified exchange routines for correct reverse simulation.
1092     o Added verification output to comply with bug fix in impldiff.F
1093       as of c33 (exp2, natl_box).
1094     o Corrected store directives in dynamics.F
1095     o Corrected array boundaries in impldiff.F
1096     o Corrected array dimensions in gmredi.
1097       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1098     o Added routine GLOBAL_SUM_INT to global_sum.F
1099     o Added mdsio_gl.F for ECCO purposes.
1100    
1101    checkpoint33
1102     o Fixed bug in lower BC in impldiff.F
1103     o Fixed confusion about units of forcing arrays in FFIELDS.h
1104       namely Fu,Fv,Qnet,Qsw,EmPmR:
1105       - Removed verification/natl_box/code/external_fields_scale.F
1106         (did not differ from that in model/src)
1107       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1108         (see FFIELDS.h for description)
1109       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1110         kpp_calc.F and kpp_transport_t.F
1111       - Removed model/src/external_fields_scale.F and calls to it
1112       - verification/natl_box uses flux data with "atmospheric" sign so
1113         a special version of external_fields_load.F is used to
1114         change the data as it's read in. This way, the arrays
1115         have the right units and signs at all times tha a user could
1116         possibly use them.
1117     o Corrected genmake to delete a temporary file during configuration
1118    
1119    checkpoint32
1120     o Scaling of forcing fields moved from external_forcing.F to
1121       external_fields_scale.F, called directly after loading fields.
1122     o Surface relaxation terms added to surface tendency fields in
1123       extra subroutine.
1124     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1125       fields.
1126     o Changes in GMRedi to comply with packaging structure.
1127     o Modifications and bug fixes in KPP package.
1128     o Verification experiment for KPP added (verification/nat_box/)
1129    
1130    checkpoint31
1131     o Packages interface brought in line with defined standard
1132       -> new routines packages_...F
1133       -> changes in initialise_fixed.F, initialise_varia.F
1134       -> enables initialisation interface for ECCO package
1135     o Rescaling of external forcing fields immediately after read
1136       (removed from external_forcing.F)
1137       -> new: surface_fields_scale.F
1138       -> affects ini_foorcing.F, external_fields_load.F
1139     o Computation of surface tendencies before tendency updates.
1140       -> new: external_forcing_surf.F
1141     o Change of variable names useGMRedi, useKPP, useECCO
1142     o Further changes in dynamics.F, impldiff.F for TAMC
1143     o Tested for experiments 0, 2, 4.
1144       - not yet tested for GMRedi.
1145       - not yet tested for KPP.
1146    
1147    checkpoint30
1148     o Updates for OBCs
1149     o New experiment for test OBCs (internal_wave)
1150     o New output.txt in verification/exp4/results/
1151     o Updates for KPP: calculation of viscosity corrected, new variables
1152       kpp_dumpFreq and kpp_taveFreq
1153     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1154       and entry for T90 in genmake
1155    
1156    checkpoint29
1157     o packaged KPP and GM/Redi
1158    
1159    checkpoint28
1160     o Corrected initialization of hFacMin for difference vertical coordinates
1161     o Modified calculation of partial cell thickness to more robust algorithm
1162     o config_summary.F: replaced write_1D_... by write_0D_...
1163       read_write.F: added subroutines write_0D_...
1164     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1165       included some initialisations required for TAMC.
1166     o routine calc_isoslopes: modified sqrt computation to make it
1167       differentiable for zero argument.
1168     o routines dynamics, impldiff:
1169       included store directives and tape key computations required for TAMC.
1170     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1171    
1172    checkpoint27
1173     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1174       formulation works properly with variable resolution.
1175     o restructured the calling tree between the_model_main() and dynamics()
1176     o split initialise() into initialise_fixed() and initialise_varia()
1177     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1178       in new routine ini_psurf()
1179    
1180    checkpoint26
1181     o moved some #ifdef in optional routines to encompass everything
1182       except the argument declarations. This was using up some memory.
1183     o fixed macros like _ADT to work with both versions of Linux cpp
1184     o cleaned up some unused and uninitialized variables
1185       (helps when debugging with strict compile options)
1186     o split up CPP_EEOPTIONS.h into options and macros
1187       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1188     o patch for 2 processor JAM mode
1189    
1190    checkpoint25
1191     o updates for OBCs and NH
1192     o dramatically reduced memory usage
1193     o added "JAM" routines for use on Artic network
1194     o parameterization of convection by implicit vertical diffusion
1195     o added a diagnostic of convective index
1196     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1197       (this is was partly for OBCs and NH but also in anticipation of
1198        an explicit free-surface option)
1199     o initial state input files for U and V
1200    
1201    checkpoint24
1202     o Removed some spurious "REAL"s
1203     o Updated KPP to latest version from JPL
1204     o Added a COS(latitude) in horizontal viscosity
1205    
1206    checkpoint23
1207     o Added del^4 diffusion for salt and temperature
1208     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1209    
1210    checkpoint22
1211     o Made many small changes: implicit none, format(i5), etc...
1212     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1213    
1214    checkpoint21
1215     o Introduced new I/O package that supports direct-access records (mdsio.F)
1216     o Split-up mid-level I/O routines
1217     o Updated input data for experiments 0,1,2,4 and 5
1218     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1219    
1220    checkpoint20
1221     o Tidied up open-boundaries some more
1222     o Added non-hydrostatic code
1223     o Fixed some input data
1224     o Modified MPI start-up to work in "coupled" context.
1225    
1226    checkpoint19
1227     o Tidied up directory structure for verification experiments.
1228     o Added new code for open boundaries.
1229     o Corrected advective terms near boundaries.
1230     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1231     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1232     o Split default parameters out of ini_parms.F into set_defaults.F.
1233    
1234    checkpoint18
1235     o Further changes for optional code generation with
1236       CPP - ugh!
1237    
1238    checkpoint17
1239     o Beginning to incorporating modularity
1240       for supporting atmos. and ocean configs.
1241     o Small changes for TAMC complinace
1242     o New ultra simple test case. Barotropic box
1243       configuration "exp0".
1244    
1245    checkpoint16
1246     o Minor changes to exchange routines to support
1247       accumulation in reverse mode. Adjoint of an
1248       assignment is an addition.
1249     o Changes to support compilation by TAMC (LR(1)
1250       syntax) and by g77 under Linux ( 72 character
1251       limit ).
1252    
1253    checkpoint15
1254     Rewrote exchange routines to allow
1255     o General tile <-> tile connectivity.
1256     o TAMC reverse mode flag ( is this really needed? )
1257     o Variable width overlap and exchange region widths.
1258     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1259       shmput/shmget, VIA, SYSV shmem and every other cool
1260       communication method.
1261    
1262    checkpoint14
1263     Consistent isomorphism chages made. These allow dynamical core
1264     to support both pressure and meters as a vertical coordinate.
1265    
1266    checkpoint13
1267     Release which corrects global_max problem and a couple
1268     of KGM time-averaging diagnostic errors. Also contains
1269     a double-gyre experiment setup as well as the baseline
1270     4 degree global template. The double gyre template is
1271     organised to allow it to be applied automatically to
1272     the baseline configuration.
1273    
1274    branch-point-rdot
1275     A few tidy-ups have been made bt the real point of this
1276     check-point (excuse the pun) is to allow a branch to be
1277     made for the purposes of adding the rDot alterations.
1278     I don't want to commit the rDot to the main-trunk until
1279     we've actually tested it...
1280    
1281    checkpoint12
1282     Tidy up and added generic genmake script (formerly
1283     configure script).
1284     Released to testers.
1285    
1286    checkpoint11
1287     Re-arranged initialise() and introduced ini_vertical_grid()
1288     and ini_masks_etc().
1289    
1290    checkpoint10
1291     Introduced the configure script.
1292     Separated out the diags package.
1293     Added template for writing time-averages of tile/intermediate quantities.
1294     Updated SIZE.h in exp2 and made the data big-endian.
1295    
1296    checkpoint9
1297     MPI fix. Filename changes (meta/data). salbin*y stuff.
1298     General tidy-up.
1299     SST.bin SSS.bin added to verification/exp2
1300    
1301  checkpoint8  checkpoint8
1302   Inludes time-dependant forcing and time-averaging.   Inludes time-dependant forcing and time-averaging.
1303   Works at 4x4 and 2.8125x2.8125 global   Works at 4x4 and 2.8125x2.8125 global

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