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revision 1.10 by cnh, Wed Jul 8 15:40:09 1998 UTC revision 1.189 by dimitri, Mon Oct 20 06:25:15 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint51l_post
7    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
8     - faster algorithm for cal_addtime.F
9     - higher precision arithmetic, where needed
10     - pkg/exf *startdate variables changed from calendar date to
11       model integration time
12    
13    checkpoint51l_pre
14    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
15    o enable to apply restoring on S & T only in a latitude band.
16    o update output (external_forcing_surf modif. change truncation errors)
17       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
18    
19    checkpoint51k_post
20    o change default to: useNHMTerms=.FALSE.
21     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
22       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
23     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
24        exp1, ideal_2D_oce
25     - change data file of oceanic exp (leave the results unchanged for now)
26       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
27    o set gravitySign automatically according to the vertical coordinate used
28      (and change sign: back to "logical" value: +1 when R increases downward)
29    o added an include barrier to the default CPP_OPTIONS.h and
30      removed the #include "PACKAGES_CONFIG.h" from it
31    o fix a bug in mom_fluxform (from chk51j_post)
32    
33    checkpoint51j_post
34    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
35    o adjusted some flow directives (dynamics, thermodynamics)
36    o added cubed-sphere case to test cost function
37    o heckpoint_lev?_directives.h now include
38      pkg-specific directives, whenever those are enabled.
39    o Moving pkg-specific flow directives to corresponding pkg
40      Moving pkg-specific differentiation list to corresponding pkg
41      Moving pkg-specific checkpoint-lev storing to corresponding pkg
42      ---> conventions are
43           - pkg_ad.flow
44           - pkg_ad_diff.list
45           - pkg_ad_check_lev?_dir.h
46    
47    checkpoint51i_post
48    o merge of the branch-genmake2
49      - knowingly breaks the older genmake
50      - automatic generation of all ALLOW_${PKG_NAME} defines
51      - new testreport supersedes older testscript
52    o large number of package inclusion and header cleanups
53    checkpoint51i_pre
54    
55    o new output for adjoin of global ocean vector invariant
56    o fix for checkpoint of thermodynamic seaice and bulk_force
57    o Steph gchem various cleanups
58    
59    checkpoint 51h_pre
60    o fixed some single quotes
61    o modify gchem pkg to be more versatile
62    o modifications to clean up dic pkg
63    o add pkg/cfc
64    
65    checkpoint51g_post
66    o provide links for ARPACK and ADM*TLM
67    o start removing verification/vero/
68    o update AD-related stuff
69      (in particular some IF-statements in model/src/ routines)
70    o adding to verification/global_ocean.90x40x15/ adjoint of
71      vector invariant setup
72    
73    checkpoint51f_post
74    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
75    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
76      of tracer Green's fucntions for ocean inversion project.
77    
78    checkpoint51f_pre
79    o Added on-the-fly spatial interpolation capability
80        "USE_EXF_INTERPOLATION" to pkg/exf.
81      - This is a temporary Cartesian-grid hack until
82        the super-duper ESMF coupler becomes available.
83      - See verification/global_with_exf/README for usage example.
84      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
85        flags and modified pkg/seaice accordingly.
86    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
87        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
88        non-local transport term.
89    
90    checkpoint51e_post
91    o pkg/mom_vecinv:
92      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
93      - add time-ave diagnostic of vorticity advection.
94    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
95    o atmospheric geopotential: - include water vapor effect;
96                                - use p^kappa in p* scaling.
97    o land pkg: read initial state from files.
98    o AIM : add stratospheric drag in the upper level
99    
100    checkpoint51d_post
101    o change function ILNBLNK (=> last non-blank char.) to return zero
102      (instead of the string length) when the string. char is empty
103    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
104    o modif's to restore TAMC compatibility
105      - avoid "_d" constructs in PARAMETER declarations
106      - avoid interrupting lines by comment lines
107    o Use cluster local disks for purely local I/O
108      vs. globally visible disks needed for ctrl stuff
109      (merged from ecco-branch)
110      - new active_file_loc... and mdsio_..._loc routines
111      - affected packages: autodiff, ctrl, grdchk, mdsio
112    
113    checkpoint51c_post
114    o introducing integer flag debugLevel
115      - debLevZero: suppress all output
116      - debLevA: standard
117      - debLevB: equivalent to current debugMode=.TRUE.
118    o introducing pathname variable mdsioLocalDir for mdsio
119      that can be specified at runtime
120      (relevant for cluster I/O to local disk)
121    `
122    >>>checkpoint51b_post
123    adjoint of ptracers
124    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
125    o extended state in checkpoint_lev?, etc.
126    o alternative ctrl/cost with tr1 or ptracer
127    o new comlev1_bibj_ptracers
128    o new ptracers.flow
129    o made ptracers_forcing same as external_forcing_s
130    o added verification for adjoint with ptracers
131      - adm. grdchk fail so far
132      - tlm. grdchk OK
133      - checked tapelev/comlev recomputations: OK
134    <<<checkpoint51b_pre
135    
136    checkpoint51a_post
137    o added code for biogeochemistry package
138      - new pkgs: dic, gchem
139      - new subroutine in ptracers
140    o modify code for biogeo packages
141      - in model/src and pkg/ptracers
142    
143    checkpoint51
144    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
145      - autodiff, ctrl, exf, grdchk, seaice
146      kept separate packages
147      - cost, ecco, obcs
148    o updating verification/internal_wave, verification/lab_sea
149      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
150    
151    checkpoint50i_post
152    o Preparing next differentiable checkpoint and sync
153      of MAIN vs. ecco-branch
154      - 1st step: this one is differentiable
155      - 2nd step: next(! not this) checkpoint will have updated packages
156                  from ecco-branch)
157    
158    checkpoint50h_post
159    o new package "land": provide surface BC for AIM.
160    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
161    o AIM: use true log-P extrapolation for near surface temp (= as in
162        F.Molteni paper) ; update aim.5l_cs output.
163    o New variable in PARM03 for more flexible pickups
164    o somewhat cleaned package initialisation sequence for
165      ctrl/ cost/ ecco/ in packages_... routines
166    
167    checkpoint50g_post
168    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
169      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
170      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
171        made the default because of faster convergence than ADI
172    
173    checkpoint50f_post
174    o exf totally restructured
175      - replaced all exf_set_ routines by one generic exf_set_gen.F
176        and made sure it's still differentiable
177      - split exf_getffields.F into new exf_bulkformulae.F
178      - exf_inscal_/exf_outscal_ suffixes consistent with field names
179      - updated adjoint/makefile and relevant verif. accordingly
180    
181    checkpoint50f_pre
182     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
183          + change Evap over land. (update aim.5l_cs output)
184     o added missing .cvsignores and made uniform across expts
185     o changed configuration of tidal_basin_2d expt
186     o added pkg/debug functions for tracing code in fatal crashes
187     o tidied pkg/monitor to use MONITOR_OPTIONS.h
188     o new fn in pkg/monitor to stop model if solution grows too big
189     o removed lots of single quotes from comments
190    
191    checkpoint50e_post
192    o make KPP work with PTRACERS
193     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
194       nearly a copy of kpp_transport_s
195     - there is no analogue to SurfaceTendencyS, so I have to use
196       gPtr(of the surface layer) instead
197    o add a new platform SunFire+mpi (SunFire 15000) to genmake
198    checkpoint50e_pre
199    
200    checkpoint50d_post
201    o change kpp output from multiple-record state files to single-record state
202      files analogous to write_state.F
203    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
204      analogous to the cg2d-related output.
205    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
206      so that writing to internal file fn (with length 512) fails.
207    checkpoint50d_pre
208    
209    checkpoint50c_post
210    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
211    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
212    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
213    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
214    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
215    
216    checkpoint50c_pre
217    Merging from release1_p13:
218    o bug fix for pkg/seaice dynamic solver
219    o Added SEAICE_initialHEFF to pkg/seaice
220    
221    checkpoint50b_post
222    o store u*,v* in gU,V instead of in guNm1,gvNm1
223    o in order to put the momForcing out of the Adams-Bashforth:
224      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
225      to timestep.F
226    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
227    o re-generate output for highly sensitive test-exp:
228       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
229    
230    checkpoint50b_pre
231    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
232    o corrected CPP option mismatch in exf_Bulk... functions for case
233      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
234    
235    checkpoint50a_post
236    o Bug fix for merging between c50 and KPP.
237      ikey was passed from thermodynamics to kpp_calc via
238      common block rather than being recomputed in kpp_calc,
239      in contradiction with new key itdkey.
240      New key ikppkey created, and tamc.h headers updated.
241    
242    checkpoint50
243    - 2nd step of merge with ecco-branch:
244      merge changes in ecco-branch back into main trunk
245    - bug fix in find_alpha
246    - more storing in gmredi_calc_tensor.F, kpp_routines.F
247    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
248    - merged some sliced AD support routines
249    
250    checkpoint49
251    merged from ecco-branch:
252    o exf:
253      - Enable initialisation of forcing fields to constant
254        (runtime) values.
255      - in exf_getffields.F
256        Reduce i-/j-loop to interior domain, discarding overlaps.
257        That also fixes wrong TAF-key computations for key_1, key_2
258        with bulf formulae.
259      - exf_init.F modify #ifdef for exf_init_evap
260      - exf_getffieldrec.F, ctrl_getrec.F
261        The following INT-usages are not safe:
262          fldsecs  = int(fldsecs/fldperiod)*fldperiod
263          fldcount = int(fldsecs/fldperiod) + 1
264        and were modified.
265    o autodiff: checkpoint_lev...
266      - updated storing for bulk formulae (some arrays were missing)
267      - added state for seaice package
268      - synchronized with main branch
269    o DIVA:
270      Modif.s in
271      - the_main_loop.F
272      - the_model_main.F
273      and added cost_final_restore.F cost_final_store.F
274      o With these changes, it is possible to fully separate
275        the first forward run to compute the cost function (mdthe_main_loop)
276        and adjoint runs over individual DIVA intervals (adthe_main_loop)
277        into separate model executions.
278        This enables better tuning of DIVA to given queue sizes.
279      o Loss of cost function value in consecutive DIVA runs is
280        fixed by storing to 'costfinal' file.
281      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
282        beginning/end of adjoint integration is accounted for.
283      The current changes apply to TAF-1.4.26.
284      TAF has one remaining bug, requiring one manual change
285      (see MITgcm manual).
286    o cal: synchronized between MAIN and ecco-branch
287    
288    checkpoint48i_post
289    o Changes to restore differentiability of code w.r.t. previous tag
290      (mostly adding new routines to make list and replacing
291      pressure by totPhiHyd).
292    o Updated and merged grdchk package
293      - has both ADM and TLM checks
294      - works for single- and multi-proc.
295      - output cleaned
296      - worked successfully for parallel DIVA
297    o genmake:
298      - Adding -platform=SP4
299      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
300    o Modif. for DIVA:
301      ctrl_unpack should not be called in intermediate DIVA interval.
302      (similar thing would apply for active files such as
303      tbar, sbar, psbar, which should not be reinitialised;
304      only relevant for ecco-branch)
305    
306    checkpoint48h_post
307    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
308    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
309    o Added SEAICE_initialHEFF to pkg/seaice
310    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
311    
312    checkpoint48g_post
313    --- EOS:
314    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
315      store total Potential in totPhyHyd for diagnostics & EOS.
316    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
317    --- Pressure/geopotential gradient:
318    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
319    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
320      ( changes results of global_ocean_pressure )
321    o NLFS + z-coord.: add eta*Rho' contribution.
322    o accurate phiHyd when using interface-W at the middle between 2 centers
323     ( changes results of ideal_2D_oce )
324    o includes r* 2nd term in potential gradient.
325    
326    checkpoint48f_post
327    Merging from release1_p12:
328    o Modifications for using pkg/exf with pkg/seaice
329      - improved description of the various forcing configurations
330      - added basic radiation bulk formulae to pkg/exf
331      - units/sign fix for evap computation in exf_getffields.F
332      - updated verification/global_with_exf/results/output.txt
333    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
334      (SBO) core products, including oceanic mass, center-of-mass,
335      angular, and bottom pressure (see pkg/sbo/README.sbo).
336    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
337      to avoid negative values in shallow regions.
338      - updated verification/natl_box/results/output.txt
339      - updated verification/lab_sea/results/output.txt
340    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
341    o Added useSingleCpuIO option (see PARAMS.h).
342    o Updated useSingleCpuIO option in mdsio_writefield.F to
343      work with multi-field files, e.g., for single-file pickup.
344    o pkg/seaice:
345      - bug fix in growth.F: QNET for no shortwave case
346      - added HeffFile for specifying initial sea-ice thickness
347      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
348    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
349      kpp_transport_t.F, forward_step.F, and the_main_loop.F
350    o pkg/seaice:
351      - adjoint-friendly modifications
352      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
353    
354    checkpoint48e_post
355    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
356    o dynamics: change definition of computational domain & adapt mom_fluxform
357      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
358    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
359        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
360        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
361        global_ocean.90x40x15 global_with_exf global_ocean_pressure
362        inverted_barometer solid-body.cs-32x32x1
363      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
364    
365    checkpoint48d_post
366    o in preparation for r*:
367     a) use pre-computed gradient of hydrostatic potential:
368        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
369     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
370        => affects results of glob_oce_pressure (different truncation error)  
371      update output.txt of ideal_2D_oce & global_ocean_pressure
372    
373    checkpoint48d_pre
374    o in preparation for r*:
375      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
376      pass the 2 comp. of the grad. as arguments to momentum S/R.
377      but for the moment, only used if it does not change the results.
378    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
379    
380    checkpoint48c_post
381    Modifications in treatment of initial flux forcing controls
382    to avoid extra storing of flux fields.
383    
384    checkpoint48c_pre
385    o Added tidal_basin_2d experiment (currently 1D!)
386    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
387    
388    checkpoint48b_post
389    o r* coordinate added in #ifdef NONLIN_FRSURF block.
390     (modification to pressure gradient not yet implemented)
391    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
392      (for U & V) that are used for vertical advection of momentum.
393    
394    checkpoint48a_post
395    o In preparation for r*, use temp. array to compute vertical transport
396       in flux-form momentum pkg. => change results of few test-exp.
397      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
398                        lab_sea, natl_box & plume_on_slope
399    
400    checkpoint48
401    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
402    
403    checkpoint47j_post
404    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
405    o moved adexch from forward_step to addummy_in_stepping
406    o added exch in ctrl_map_...
407    o aveFreq.=0. at end of cost_final to avoid overwrite in
408      reverse checkpointing loop
409    o Yet more changes in gmredi:
410      * adgmredi_calc_tensor
411        avoiding all recomputation of gmredi_slope_limit
412      * adgmredi_x/y/rtransport
413        added flag for excessive storing to avoid recomp. of
414        u/v/rtans, dTdx/y/z
415        -> this is not really necessary and very memory-consuming
416      * adgmredi_slope_psi:
417        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
418      * gmredi_slope_limit
419        re-activated full calculation of taperfct for case 'ac02'
420    o updating verification/ adjoints of carbon, global_ocean.90x40x15
421    
422    checkpoint47i_post
423    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
424    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
425      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
426    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
427    o gmredi: fix few bugs.
428    
429    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
430    This will be a good checkpoint to plug into the ecco-branch.
431    o few modif.'s to get latest version adjointed
432      (mainly kick out code in ini_linear_phisurf)
433    o modif's to run adjoint with exactConserv
434    o case GM_BOLUS_ADVEC should be cleaned
435      S/R gmredi_slope_psi should be cleaned
436    o verification/carbon now has exactConserv=.TRUE.
437    
438    checkpoint47g_post
439    o time-average AIM output: becomes independent from statvars time-average
440      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
441    o After TAF bug fix:
442      Tested adjoint of gmredi package.
443      Tests were done with checkpoint47 rather than with latest
444      checkpoint47f_post since the latter is broken for the adjoint
445      verification/carbon/ contains both ADM and TLM gradient checks.
446    Here they are, before they get changed/lost/stolen.
447    Mostly modif.'s to fix numerical sensitivities.
448    Gradient checks OK for
449    - GM_taper_scheme:
450      * clipping
451      * ac02
452      * linear
453      * glw91
454      * dm95
455      * ldd97
456    - GMREDI_OPTIONS:
457      * GM_VISBECK_VARIABLE_K
458      * GM_NON_UNITY_DIAGONAL
459      * GM_EXTRA_DIAGONAL
460      * GM_BOLUS_ADVEC
461    in conjunction with data.gmredi parameters to be checked in
462    in a few minutes under verification/carbon/code/
463    
464    checkpoint47f_post
465    Merging from release1_p10:
466    o modifications for using pkg/exf with pkg/seaice
467      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
468        and SEAICE_EXTERNAL_FLUXES
469      - pkg/exf CPP options EXF_READ_EVAP and
470        EXF_NO_BULK_COMPUTATIONS
471      - usage examples are Experiments 8 and 9 in
472        verification/lab_sea/README
473      - verification/lab_sea default experiment now uses
474        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
475    
476    checkpoint47e_post
477    o created a tag prior to creating a branch
478    
479    checkpoint47d_post
480    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
481      at the bottom boundary had an erroneous half slip boundary condition
482    o added bottom drag and no slip boundary condition capabilities to
483      oceanic pressure coordinates code
484    o added new verification experiment global_ocean_pressure, this experiment is
485      also described in the tutorial section of the manual
486    checkpoint47d_pre
487    
488    checkpoint47c_post
489    o Added a verification experiment for a global cubed-sphere ocean run
490      -  verification/global_ocean.cubed32x32x30
491      -  uses pkg/therm_seaice and pkg/bulk_forcing
492    
493    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
494    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
495      when using P-coordinate; only implemented for atmospheric config.
496    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
497      NOTES: requires option NONLIN_FRSURF to be "#define".
498    o update advect_xz/results/output.txt (left from checkpoint44g_post)
499    
500    checkpoint47b_post
501    Merging from release1_p9:
502    o pkg/seaice
503      - removed GOTO's and added taf directives
504      - double precision constants to reduce the g77 (Linux)
505        to F77 (SGI) differences reported in release1_p8
506    o tools/genmake
507      - added SGI options
508    o verification/testscript
509      - updated to that of checkpoint47a_post
510    o verification/global_ocean.90x40x15/input/eedata
511      - modified for SGI f77 compatibility
512    o verification/lab_sea
513      - added description of sea-ice model
514      - added missing matlab routines
515      - added test of thermodynamics parallelization
516    
517    checkpoint47a_post
518    o new pkg: aim_v23
519     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
520       for now, keep the same surface forcing as before.
521     - Part-Cell implemented into AIM; check that Heat & Water are conserved
522     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
523     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
524    o add diagnostic of surface correction term in monitor output
525    
526    o bulk_force and therm_seaice
527    - Two packages:  bulk_force (Bulk forcing)
528      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
529    - Earlier integration from Stephaine Dutkiewicz
530      and Patrick Heimbach.
531    - Two ifdef statements for compile time,
532       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
533    
534    checkpoint47
535    differentiable version of checkpoint46n_post
536    o bug fix in quasihydrostaticterms
537    o * "clean" adjoint code (in terms of extensive recomputations)
538        can now be obtained for all GMREDI options (i.e. for
539        - GM_VISBECK_VARIABLE_K
540        - GM_NON_UNITY_DIAGONAL
541        - GM_EXTRA_DIAGONAL
542        - GM_BOLUS_ADVEC )
543      * However, wrong gradient check problem remains unsolved.
544      * New CPP options have been introduced for different
545        tapering schemes
546    o external_fields_load now part of differentiation list
547    o pressure needs multiple storing;
548      would be nice to have store_pressure at beginning or
549      end of forward_step, e.g. by having phiHyd global (5-dim.)
550      (NB: pressure is needed for certain cases in find_rho,
551      which is also invoked through convective_adjustment).
552    o recomputations in find_rho for cases
553     'JMD95'/'UNESCO' or 'MDJWF' are OK.
554    o #define ATMOSPHERIC_LOADING should be differentiable
555    o ini_forcing shifted to begining of initialise_varia
556    o Incorporating QNVS line search routines into MITgcm
557      (this is separate code, and therefore not under pkg)
558      lsopt/, optim/
559    o Updated verification/carbon/
560      - #define GM_VISBECK_VARIABLE_K
561      - GM_taper_scheme    = 'ldd97'    
562    
563    checkpoint46n_post
564    Merging from release1_p8:
565    o verification/natl_box:
566      updating new external_fields_load routine
567    o New package: pkg/seaice
568      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
569      The sea-ice code is based on Hibler (1979-1980).
570      Two sea-ice dynamic solvers, ADI and LSR, are included.
571      In addition to computing prognostic sea-ice variables and diagnosing
572      the forcing/external data fields that drive the ocean model,
573      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
574      The implied surface heat flux is then stored in variable
575      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
576      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
577      non-local transport term.  Because this call precedes model
578      thermodynamics, temperature under sea-ice may not be "exactly" at
579      the freezing point by the time theta is dumped or time-averaged.
580      N.B.: fairly large differences in accuracy occur across
581            different platforms/compilers; comparison between
582            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
583            generated output gives:
584       T           S           U           V
585      C D M    c        m  s        m  s        m  s        m  s
586      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
587      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
588      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
589    
590      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
591    o GAD:
592      - generated new common blocks to account for call of
593        same gad routines with differing traceridentities
594        (needed to modify tracerIdentity indices in GAD.h)
595      - generated separate common blocks for case useCubedSphereExchange
596        (Department of Futurology)
597      - parameter lists to gmredi_?transport: added tracerIdentity
598      - added new key indices to tamc.h
599    o external_fields_load:
600      - added this routine to TAF list
601      - needed to make some common blocks global and additional storing
602        along the same lines as exf package (checkpoint_lev?_directives.h)
603    o exf:
604      updated external forcing package
605      - bug fixes carried over from ecco-branch
606        (missing OBCS_OPTIONS.h in two routines)
607      - enable easy to use "no forcing".
608      - added exf I/O for atmospheric loading
609      - added exf I/O for runoff data
610      - transfered scaling between exf <-> MITgcm to exf namelist
611    o Adding new verification experiment global_with_exf.
612      This verification experiment is almost identical to the
613      global_ocean.90x40x15 experiment, except that it uses
614      the exf (and cal) package instead of the
615      external_fields_load routine (cf README file).
616    
617    checkpoint46m_post
618    o modified testscript to return -- when there are no lines of "%MON" output
619    o added new flag "quasiHydrostatic" for QH mode
620      and new routine quasihydrostaticterms()
621    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
622      New routine: mom_u_coriolis_nh()
623    o fixed sign of non-hydrostatic metric terms in u and v equations.
624      Depend on correct sign of gravitySign.
625    o added work.pc* to .cvsignore in aim directories using ifc
626    o introduced flag for controllin non-hydrostatic metric terms
627    o removed gravitySign from PARM04
628    o switched to g77/ifc from pgf77 in aim experiments
629    
630    checkpoint46l_post
631    o made convective adjustment work with pressure coordinates:
632     - changed the direction of k-loop in convective_adjustment.F for the
633       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
634     - adjusted the reference pressure k-index in convective_adjustment.F
635     - adjusted the convection condition in convect.F (in analogy to
636       calc_ivdc.F)
637     - convective_adjustment no longer computes anything on the halos
638     - removed the warnings about negative salinity from find_rho.F and
639       find_alpha.F; instead the new routine look_for_neg_salinity, called
640       at the beginning of find_rho, find_alpha, and find_beta, does a
641       check of the entire slice, if CPP-option
642       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
643    checkpoint46l_pre
644    
645    checkpoint46k_post
646    o fixed the verification/global_ocean.90x40x15 experiment:
647     - new bathymetry (the world according to A., JMC, and M.)
648     - new initial fields and forcing fields (*.bin files)
649     - new POLY3.COEFFS (for the next release one should switch to a full
650       equation of state: JMD95P or MDJWF)
651     - fixed several errors and redundancies in the data file
652     - experiment uses looped cells
653     - added matlab directory with diagnostic scripts for plotting of output
654    
655    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
656     - read AIM physics parameters from a file (data.aimphys)
657     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
658    
659    checkpoint46j_post
660    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
661    o move wVel computation at the end of the time step, in S/R integr_continuity
662    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
663    o update timeave pkg for wVel diagnostic.
664    checkpoint46j_pre
665    
666    checkpoint46i_post
667    o Clean up AIM package (and keep the results unchanged):
668      include CPP_OPTION and use IMPLICT NONE in all routines ;
669      declare all the variables _RL ; use _d 0 for all numerical constants.
670      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
671    
672    checkpoint46h_post
673    o cleaned up the use of rhoNil and rhoConst.
674      - rhoNil should only appear in the LINEAR equation of state, everywhere
675        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
676        and the dynamical equations are all divided by rhoConst
677    o introduced new parameter rhoConstFresh, a reference density of fresh
678      water, to remove the fresh water flux's dependence on rhoNil. The default
679      value is 999.8 kg/m^3
680    o cleanup up external_forcing.F and external_forcing_surf.F
681      - can now be used by both OCEANIC and OCEANICP
682    checkpoint46h_pre
683    
684     Added code to convert surface volume flux (fresh water) into
685     a mass flux when using P coordinates in the ocean (OCEANICP).
686     Note: It assumes you have set rho0=rhoConst=density of fresh water.
687    
688    checkpoint46g_post
689    o Include a new diagnostic variable phiHydLow for the ocean model
690      - in z-coordinates, it is the bottom pressure anomaly
691      - in p-coordinates, it is the sea surface elevation
692      - in both cases, these variable have global drift, reflecting the mass
693        drift in z-coordinates and the volume drift in p-coordinates
694      - included time averaging for phiHydLow, be aware of the drift!
695    o depth-dependent computation of Bo_surf for pressure coordinates
696      in the ocean (buoyancyRelation='OCEANICP')
697      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
698        Theta, Salinity, and Pressure in the parameter list. This routine is
699        presently contained in find_rho.F. This routine does not give the
700        correct density for 'POLY3', which would be a z-dependent reference
701        density.
702    o cleaned up find_rho
703      - removed obsolete 'eqn' from the parameter list.
704    o added two new verification experiments: gop and goz
705      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
706    checkpoint46g_pre
707    
708    checkpoint46f_post
709    o Enable tangent linear (forward mode) gradient checks:
710      - extended active file handling to g_... files
711      - added TANGENT_SIMULATION to theSimulationMode
712      - extended grdchk package accordingly
713    o added tangent linear setup in verification/carbon/code_ftl
714    o added adjoint setup in verification/front_relax/code_ad
715    
716    checkpoint46e_post
717    o Added new equation of state -> MDJWF
718      - EOS of McDougall et al., 2002, JAOT, submitted
719      - caveat: the equation of state is only valid for a smaller (more
720        realistic?) range of values than JMD95P/Z and UNESCO
721      - added masks to the calculation of pressure in store_pressure
722      - added more check values for density in check_eos (ini_eos.F), some of
723        the old check values are out of the range of the MDJWF-eos, so don't
724        expect perfect matches for those
725    checkpoint46e_pre
726    
727    checkpoint46d_post
728    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
729      'OCEANICP', also initialised field pressure correctly in ini_eos in the
730      case of pressure coordinates. eosType='JMD95Z' in
731      combination with buoyancyRelation='OCEANICP' now causes an error.
732    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
733      in find_alpha/beta.
734    checkpoint46d_pre
735    
736    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
737      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
738    
739    checkpoint46c_post
740    o Changes necessary for ocean in p-coordinates
741     -  Added new buoyancy relation = 'OCEANICP'
742     -  Added new parameters = gravitySign (this used to be contained inside
743        the factor dRdZ which I added when we first switched to R coordinates).
744     X GM/Redi is not compatible (yet)
745     X bottom drag and no-slip need to be debugged.
746    checkpoint46c_pre
747    
748    checkpoint46b_post
749    o Added new equation of state -> JMD95Z and JMD95P
750      - EOS of Jackett and McDougall, 1995, JAOT
751      - moved all EOS parameters into EOS.h
752      - new routines ini_eos.F, store_pressure.F
753    o Added UNESCO EOS, but not recommended because it requires
754      in-situ temperature (see JMD95)
755    o Modified formatting for knudsen2.f in utils/knudsen2 and added
756      unesco.f to be used with POLY3
757    checkpoint46b_pre
758    
759    checkpoint46a_post
760    o Added (atmospheric) pressure loading
761      - new field in FFIELDS.h, etc...
762      - new cpp flag ATMOSPHERIC_LOADING
763    o Changed hFacC to _hFacC in calc_phi_hyd.F
764    o Added SHORTWAVE_HEATING to some files for consistency
765    checkpoint46a_pre
766    
767    checkpoint46
768    further merges from release1_p5
769    o new ctrl package
770      - adopted from ECCO environment to enable optimization
771      - added Eliassen Palm fluxes to controls
772    o added Eliassen Palm flux controls to gradient check package
773    o cost package
774      - Compatible with new ctrl package
775      - added Eliassen Palm cost hooks
776      - modif's of existing cost functions
777    o Adjoint-related bug fixes in kpp:
778      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
779      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
780    o autodiff package
781      - flow directives:
782        + new for S/R do_the_model_io
783        + enhanced for S/R checkpoint
784        + new gmredi.flow
785      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
786        disable adcommon.h/g_common.h by default.
787      - fixed problem for adjoint of global_max
788    o modified verification/carbon/
789    o New setup for adjoint of global_ocean
790    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
791    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
792    o incorporated hooks for sponge layer code (external_forcing.F)
793    
794    checkpoint45d_post
795    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
796    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
797      (affects plume_on_slope "cg2d" output)
798    o add new parameter deltaTfreesurf for free-surface time stepping
799    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
800    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
801    o change phiMin in exp1 (to agree with documentation)
802    o add new flags:
803     - T,S forcing inside/outside Adams-Bashforth
804     - turn off temp,salt advection and/or forcing
805     - for each tracer, define internal flag for multiDimAdvection & A-B
806    o monitor: change definition of KE to check conservation of Energy
807    
808    checkpoint45c_post
809    o Removed f90 comments ("!")
810    o Modified initialisations to enable exf package for MITgcm
811      (without invoking ECCO_PACKAGE).
812    o modifications to gradient check package (Martin Losch)
813      - enable centered differences
814      - modified format of standard output
815    
816    checkpoint45b_post
817    o cleaned exchange calls in cg2d
818    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
819    o included CPP option SINGLE_LAYER_MODE in thermodynamics
820      to configure barotropic setup (Martin Losch)
821    o moved some initialisations within bi,bj loop in dynamics
822      (TAF flow dependency)
823    o in initialise_varia, moved call packages_init_variables
824      before convective_adjustment_init
825      (corresponding adjustment of TAF tape initialisation).
826    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
827    
828    checkpoint45a_post
829    o compute Rho over the whole domain (extend iMin,jMin indices)
830    o specific exchange for X-slice domain (case Ny=1)
831    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
832    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
833    
834    checkpoint44h_post = checkpoint45
835    o Fix to restore differentiability:
836      place at which packages_init_variables is called in
837      initialise_varia is crucial for reverse control flow.
838    o modifications in GMRedi to enable stable adjoint
839      (corresponding modif's in thermodynamics, dynamics)
840    o added missing hook for sponge layer code in external_forcing
841    o modified test cost functions
842    o storing in gad_advection (plus removal of write(0,*)!
843    o missing headers TR1.h added in convective_adjustment routines
844    o errorMessageUnit set non-equal zero in eeboot
845      (conflict on some platforms, e.g. IBM SP3)
846    o modified carbon verif.
847    
848    checkpoint44h_pre
849    o vertical grid option: allow to put the Interface at the middle between
850      2 cell-centers ; replace delZ in pkg/kpp by drF.
851    o GM Advective form: Tracers are advected using the residual transport (=
852      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
853    
854    checkpoint44g_post
855    o fix surface correction term in multiDimAdvection (affects plume_on_slope
856      results) ; ifdef missing in thermodynamics.F
857    
858    checkpoint44f_pre,checkpoint44f_post
859    o added PTRACERS package
860      This allows an arbitrary number of passive tracers to be integrated
861      forward simultaneously with the dynamicaly model.
862      + Implemented so far:
863        - basic forward algorithm (time-stepping, advection, diffusion, convection)
864        - I/O and checkpointing
865        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
866      + Not implemented so far:
867        - KPP
868        - OBCS
869      + No specific example supplied (yet) but global_ocean.90x40x15 has the
870        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
871        line in data.pkg.
872      + This package is disabled by default since it increases storage.
873    
874    
875    o testscript: added -cleanup option
876    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
877                 b) enable to filter 2D fields.
878    
879    checkpoint44e_pre,post
880    o re-wrote convective adjustment to use pre-calculated weights
881      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
882      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
883      Original calls to convect() still in place.
884    
885    chkpt44d_pre,post
886    o added missing EXCLUDE_MONITOR flags
887    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
888      (incompatible typ in MIN/MAX expressions caused problems
889      on IBM SP3)
890    o in genmake added variable MAKEDEPEND
891      plus resetting for case SunOS
892    o added timer_stats.c routine for IBM SP3
893    o removed variables in dynamics
894    !!! I forgot to create tag chkpt44d_pre !!!
895    !!! But chkpt44d_pre = chkpt44c_post    !!!
896    
897    o real fresh water flux implemented with non-linear free-surface.
898    
899    chkpt44c_pre,post
900    o few fix (mask in shap_s2, EmPmR in external_field_load,
901      USE_NATURAL_BCS in solve_for_P);
902    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
903    
904    checkpoint44b_pre/_post
905    o merge of relevant stuff from the ecco-branch:
906      - genmake: removed $S64 overwrite for case SunOS
907      - pkg/exf: update and corrections for field swapping and obcs
908      - pkg/ecco: parameter lists for the_model_main, the_main_loop
909                  harmonized between ECCO and MITgcm
910      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
911                      updated checkpointing_lev... lists for obcs
912      - model/src: minor changes in forward_step, plot_field
913                   added directive for divided adjoint in the_main_loop
914      - pkg/mdsio: added mdsio_gl_slice
915    
916    o check parameters & config (chkpt44a_pre,post)
917    o OBC and NonLin_FrSurf.
918    
919    checkpoint44
920    o fix bug in mom_vi_del2uv
921    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
922    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
923    o update AIM experiments (NCEP input files)
924    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
925    o added some stuff for AD
926    
927    checkpoint43
928    o added two new advection tests
929    o added global 4x4 degree ocean test
930    o added test of H&S94 with free surface on cube
931    o some final mods for gradient check, adjoint,...
932    
933    checkpoint42
934      Fixed AD-related problems:
935    o Store directives up-to-date with re-arranged Adams-Bashforth
936      (mainly thermodynamics.F)
937    o New store directives for multi-dim. advection schemes
938      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
939      * new common block and key passkey
940      (mainly gad_advection.F)
941    o Modified store directives for split of dynamics/thermodynamics
942      for the case ALLOW_KPP
943    o Cleaned argument list for timestep_tracer.F
944    
945    checkpoint41
946    o re-formatted/added comments in prologues of key subroutines
947      to work with protex
948    
949    checkpoint40
950    o moved calc_gs, calc_gt and calc_tr1 back to model/src
951    o added FLT (floats) package from Arne along with demo. experiment
952    o re-arranged Adams-Bashforth scheme for tracers to allow easier
953      implementation of forward-in-time forcing terms
954    o more mods for non-linear free-surface including new variable
955    o modified multi-dim method to work on cube
956    o bug fix in KPP (from DM)
957    
958    checkpoint40pre9
959    o added DST advection schemes
960    o fix MPI bug on SGI's
961    o modifications for non-linear free-surface
962    o fixed conditionals for fixed flow/passive tracer only mode
963    o added tension/strain form of stress tensor
964    o changes to commenting of arguments for TAF/TAMC
965    o added/updated many matlab scripts
966    o added multi-dimensional advection method for tracers
967      
968    checkpoint40pre8
969    o new package rw/
970      Added method for dumping intermediate local arrays:
971      mdsio_writetile - same as mdsio_writefield except works from inside
972                        bi,bj loop
973      mdsio_writelocal - same as mdsio_writetile except works for local
974                         arrays
975      write_local_r? - higher-level wrapper for mdsio_writelocal
976      Controlled by diagFreq. Defaults to zero (ie. no dumps)
977      Example given at end of mom_vecinv.F that dumps some local arrays.
978    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
979      control flux-form versus vector invariant code.
980      Switch is runtime flag vectorInvariantMomentum (defaults to false)
981      or genmake -DISABLE ...
982    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
983      (additional storing is now needed for case vecinv;
984      currently nothing implemented to switch this storing off
985      in case fluxform is used since no CPP flag available).
986    
987    checkpoint40pre7
988    o bug fix in dynamics.F
989      calc_viscosity called before k=1,Nr loop.
990    o added some #ifdef's ALLOW_PASSIVE_TRACER
991    o cleaned initialisations in ctrl_map_ini
992      related to TAF
993    
994    checkpoint40pre6
995    o split dynamics into thermodynamics & dynamics
996    o corresponding split of calc_diffusivity into
997      calc_diffusivity, calc_viscosity
998      (kpp_calc_diff, kpp_calc_visc).
999    o Added diffkr, kapgm to control variables
1000    o bug fix in gmredi_slope_limit for ldd97
1001    
1002    checkpoint40pre5
1003    o proper initialization of Adams-Bashforth time stepping
1004      + uses forward step for very first step of model (iter=0)
1005    o re-generated *all* output since almost all output is modified by this
1006      change (sorry but we've been putting this one off for about 2 years)
1007      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1008        *not* regenerated since they are already out of date and I don't
1009        want to create the impression that they are suddenly working.
1010    o removed KAP stuff for DEC's
1011    o modified/added many .cvsignore files in */code and */input
1012    o added new expt "solid-body.cs-32x32x1"
1013      + this uses an alternative form of ini_curvilinear_grid.F which
1014        is not necessarily any better than the current one...
1015    
1016    checkpoint40pre4
1017    o added re-initialisations of utrans,vtrans,rtrans in
1018      calc_common_factors which are crucial for TAF.
1019    o extended iMin,jMin range for calc_common_factors,
1020      calc_diffusivity
1021    o added option ALLOW_PASSIVE_TRACER
1022    o a few minor updates and fixes
1023    
1024    checkpoint40pre3
1025    o created calc_gtr1.F for gad package
1026    o split the_main_loop and re-introduced forward_step
1027    o some recomputations of nIter0 for TAMC
1028    
1029    checkpoint40pre2
1030    o Updated to latest branch of AJA, JMC
1031    o Added gradient check package
1032    o Added routines for passive tracer handling
1033    o Added carbon sequestration sensitivity experiment
1034    
1035    checkpoint39
1036     o Modifications and fixes to support TAMC
1037       (mainly missing or wrong directives)
1038     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1039       in addummy_in_stepping
1040     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1041     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1042     o Included following packages:
1043       cal: calendar
1044       exf: external forcing
1045       ecco: essential routines to control use of cal, exf
1046             (NB: this is not the full ECCO environment)
1047     o disabled some packages by default in genmake
1048    
1049    checkpoint38
1050     o see notes_c37_adj.txt
1051     o corrected wrong layer index in external_forcing_t
1052     o replaced the_main_loop/forward_step by the_main_loop
1053     o removed forceoutput from write_state
1054       (replaced criteria for initial/final state)
1055     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1056    
1057    checkpoint37
1058     o mdsio.F routine split and packaged in pkg/mdsio
1059       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1060        used unless genmake -disable=mdsio)
1061     o allow a more precise surface-geopotential gradient for the atmosphere
1062       taking into account the change in space of Alpha (=1/rho) at the surface.
1063     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1064       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1065     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1066       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1067       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1068     o Time-Average diagnostics defined as a pseudo package "timeave".
1069     o pickup files : old pickup (before c35) did not work with new code (c35
1070       and after) unless activating 2 commented lines in initialise-varia.
1071     o Non-Hydrostatic pickup file Pb fixed.
1072     o bug with Rigid-lid version (since c35) fixed.  
1073    
1074    checkpoint36
1075     o implement Crank-Nickelson barotropic time-stepping
1076     o recover Time-Average diagnostics
1077     o fix Pb in checkpoint (PR#19)
1078     o AIM become a standard package ; clean unused CPP_kees
1079    
1080    checkpoint35
1081     o subtantial rewrite of dynamics.f
1082     o allows staggered time-stepping
1083     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1084     o added bottom drag (linear + quadratic)
1085    
1086    checkpoint34
1087     o Modified exchange routines for correct reverse simulation.
1088     o Added verification output to comply with bug fix in impldiff.F
1089       as of c33 (exp2, natl_box).
1090     o Corrected store directives in dynamics.F
1091     o Corrected array boundaries in impldiff.F
1092     o Corrected array dimensions in gmredi.
1093       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1094     o Added routine GLOBAL_SUM_INT to global_sum.F
1095     o Added mdsio_gl.F for ECCO purposes.
1096    
1097    checkpoint33
1098     o Fixed bug in lower BC in impldiff.F
1099     o Fixed confusion about units of forcing arrays in FFIELDS.h
1100       namely Fu,Fv,Qnet,Qsw,EmPmR:
1101       - Removed verification/natl_box/code/external_fields_scale.F
1102         (did not differ from that in model/src)
1103       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1104         (see FFIELDS.h for description)
1105       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1106         kpp_calc.F and kpp_transport_t.F
1107       - Removed model/src/external_fields_scale.F and calls to it
1108       - verification/natl_box uses flux data with "atmospheric" sign so
1109         a special version of external_fields_load.F is used to
1110         change the data as it's read in. This way, the arrays
1111         have the right units and signs at all times tha a user could
1112         possibly use them.
1113     o Corrected genmake to delete a temporary file during configuration
1114    
1115    checkpoint32
1116     o Scaling of forcing fields moved from external_forcing.F to
1117       external_fields_scale.F, called directly after loading fields.
1118     o Surface relaxation terms added to surface tendency fields in
1119       extra subroutine.
1120     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1121       fields.
1122     o Changes in GMRedi to comply with packaging structure.
1123     o Modifications and bug fixes in KPP package.
1124     o Verification experiment for KPP added (verification/nat_box/)
1125    
1126    checkpoint31
1127     o Packages interface brought in line with defined standard
1128       -> new routines packages_...F
1129       -> changes in initialise_fixed.F, initialise_varia.F
1130       -> enables initialisation interface for ECCO package
1131     o Rescaling of external forcing fields immediately after read
1132       (removed from external_forcing.F)
1133       -> new: surface_fields_scale.F
1134       -> affects ini_foorcing.F, external_fields_load.F
1135     o Computation of surface tendencies before tendency updates.
1136       -> new: external_forcing_surf.F
1137     o Change of variable names useGMRedi, useKPP, useECCO
1138     o Further changes in dynamics.F, impldiff.F for TAMC
1139     o Tested for experiments 0, 2, 4.
1140       - not yet tested for GMRedi.
1141       - not yet tested for KPP.
1142    
1143    checkpoint30
1144     o Updates for OBCs
1145     o New experiment for test OBCs (internal_wave)
1146     o New output.txt in verification/exp4/results/
1147     o Updates for KPP: calculation of viscosity corrected, new variables
1148       kpp_dumpFreq and kpp_taveFreq
1149     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1150       and entry for T90 in genmake
1151    
1152    checkpoint29
1153     o packaged KPP and GM/Redi
1154    
1155    checkpoint28
1156     o Corrected initialization of hFacMin for difference vertical coordinates
1157     o Modified calculation of partial cell thickness to more robust algorithm
1158     o config_summary.F: replaced write_1D_... by write_0D_...
1159       read_write.F: added subroutines write_0D_...
1160     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1161       included some initialisations required for TAMC.
1162     o routine calc_isoslopes: modified sqrt computation to make it
1163       differentiable for zero argument.
1164     o routines dynamics, impldiff:
1165       included store directives and tape key computations required for TAMC.
1166     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1167    
1168    checkpoint27
1169     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1170       formulation works properly with variable resolution.
1171     o restructured the calling tree between the_model_main() and dynamics()
1172     o split initialise() into initialise_fixed() and initialise_varia()
1173     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1174       in new routine ini_psurf()
1175    
1176    checkpoint26
1177     o moved some #ifdef in optional routines to encompass everything
1178       except the argument declarations. This was using up some memory.
1179     o fixed macros like _ADT to work with both versions of Linux cpp
1180     o cleaned up some unused and uninitialized variables
1181       (helps when debugging with strict compile options)
1182     o split up CPP_EEOPTIONS.h into options and macros
1183       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1184     o patch for 2 processor JAM mode
1185    
1186    checkpoint25
1187     o updates for OBCs and NH
1188     o dramatically reduced memory usage
1189     o added "JAM" routines for use on Artic network
1190     o parameterization of convection by implicit vertical diffusion
1191     o added a diagnostic of convective index
1192     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1193       (this is was partly for OBCs and NH but also in anticipation of
1194        an explicit free-surface option)
1195     o initial state input files for U and V
1196    
1197    checkpoint24
1198     o Removed some spurious "REAL"s
1199     o Updated KPP to latest version from JPL
1200     o Added a COS(latitude) in horizontal viscosity
1201    
1202    checkpoint23
1203     o Added del^4 diffusion for salt and temperature
1204     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1205    
1206    checkpoint22
1207     o Made many small changes: implicit none, format(i5), etc...
1208     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1209    
1210    checkpoint21
1211     o Introduced new I/O package that supports direct-access records (mdsio.F)
1212     o Split-up mid-level I/O routines
1213     o Updated input data for experiments 0,1,2,4 and 5
1214     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1215    
1216    checkpoint20
1217     o Tidied up open-boundaries some more
1218     o Added non-hydrostatic code
1219     o Fixed some input data
1220     o Modified MPI start-up to work in "coupled" context.
1221    
1222    checkpoint19
1223     o Tidied up directory structure for verification experiments.
1224     o Added new code for open boundaries.
1225     o Corrected advective terms near boundaries.
1226     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1227     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1228     o Split default parameters out of ini_parms.F into set_defaults.F.
1229    
1230    checkpoint18
1231     o Further changes for optional code generation with
1232       CPP - ugh!
1233    
1234    checkpoint17
1235     o Beginning to incorporating modularity
1236       for supporting atmos. and ocean configs.
1237     o Small changes for TAMC complinace
1238     o New ultra simple test case. Barotropic box
1239       configuration "exp0".
1240    
1241    checkpoint16
1242     o Minor changes to exchange routines to support
1243       accumulation in reverse mode. Adjoint of an
1244       assignment is an addition.
1245     o Changes to support compilation by TAMC (LR(1)
1246       syntax) and by g77 under Linux ( 72 character
1247       limit ).
1248    
1249    checkpoint15
1250     Rewrote exchange routines to allow
1251     o General tile <-> tile connectivity.
1252     o TAMC reverse mode flag ( is this really needed? )
1253     o Variable width overlap and exchange region widths.
1254     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1255       shmput/shmget, VIA, SYSV shmem and every other cool
1256       communication method.
1257    
1258    checkpoint14
1259     Consistent isomorphism chages made. These allow dynamical core
1260     to support both pressure and meters as a vertical coordinate.
1261    
1262    checkpoint13
1263     Release which corrects global_max problem and a couple
1264     of KGM time-averaging diagnostic errors. Also contains
1265     a double-gyre experiment setup as well as the baseline
1266     4 degree global template. The double gyre template is
1267     organised to allow it to be applied automatically to
1268     the baseline configuration.
1269    
1270    branch-point-rdot
1271     A few tidy-ups have been made bt the real point of this
1272     check-point (excuse the pun) is to allow a branch to be
1273     made for the purposes of adding the rDot alterations.
1274     I don't want to commit the rDot to the main-trunk until
1275     we've actually tested it...
1276    
1277  checkpoint12  checkpoint12
1278   Tidy up and added generic genmake script (formerly   Tidy up and added generic genmake script (formerly
1279   configure script).   configure script).

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