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revision 1.4 by cnh, Mon Jun 8 22:38:51 1998 UTC revision 1.197 by heimbach, Mon Oct 27 23:00:59 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint51o_post
7    o bringing AD-related verif's up to date with genmake2
8      - carbon/
9      - global_ocean.90x40x15/
10      - hs.94.1x64x5/
11      - (front_relax/ )
12    o (more) consistent directory structure for AD-related verif.'s
13    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
14    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
15    o bug fix in find_alpha.F for MDJWF:
16      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
17        change rho -> rho-rhoConst
18      - replace call find_rho to find_rhonum
19    o initialisation of rFlx extended to full array (required by TAF)
20      and shifted to thermodynamics
21    o removed PTRACERS.h in ptracers routine
22    o added surfacetendencyPtr to S/R parameter list pracers_forcing
23    o Correcting initialisations for fVerU, fVerV.
24    o helping TAF to recognize dependency on kUp for
25      fVerU, fVerV
26    o Replacing delZ by delR in pkg/ctrl/
27    checkpoint51o_pre
28    
29    o undid all of cp51 pending some cleanups and discussion
30    o added the [#include "AD_CONFIG.h"] statement to all files that need
31       it for adjoint/tl #defines
32     o re-worked the build logic in genmake2 to support AD_CONFIG.h
33     o removed tools/genmake since it no longer works
34    
35    checkpoint51n_post
36    o modifications to make FREEZE flux visible to pkg/kpp
37      - moved surfaceTendencyTice from pkg/seaice to main code
38      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
39      - subroutine FREEZE now limits only surface temperature
40        (this means new output.txt for global_ocean.90x40x15,
41         global_ocean.cs32x15, and global_with_exf)
42    o added surface flux output variables to TIMEAVE_STATVARS
43    
44    checkpoint51n_pre
45    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
46    o added [#include "AD_CONFIG.h"] to all files that use the following
47      defines:
48      - ALLOW_ADJOINT_RUN
49      - ALLOW_TANGENTLINEAR_RUN
50      - ALLOW_ECCO_OPTIMIZATION
51    
52    checkpoint51m_post
53    o incorporating changes to get TAMC/TAF working in genmake2
54      - added new TAMC/TAF targets to the Makefile
55      - various cleanups related to package handling
56      - these changes should have no impact on the forward model
57    
58    checkpoint51l_post
59    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
60     - faster algorithm for cal_addtime.F
61     - higher precision arithmetic, where needed
62     - pkg/exf *startdate variables changed from calendar date to
63       model integration time
64    
65    checkpoint51l_pre
66    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
67    o enable to apply restoring on S & T only in a latitude band.
68    o update output (external_forcing_surf modif. change truncation errors)
69       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
70    
71    checkpoint51k_post
72    o change default to: useNHMTerms=.FALSE.
73     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
74       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
75     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
76        exp1, ideal_2D_oce
77     - change data file of oceanic exp (leave the results unchanged for now)
78       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
79    o set gravitySign automatically according to the vertical coordinate used
80      (and change sign: back to "logical" value: +1 when R increases downward)
81    o added an include barrier to the default CPP_OPTIONS.h and
82      removed the #include "PACKAGES_CONFIG.h" from it
83    o fix a bug in mom_fluxform (from chk51j_post)
84    
85    checkpoint51j_post
86    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
87    o adjusted some flow directives (dynamics, thermodynamics)
88    o added cubed-sphere case to test cost function
89    o heckpoint_lev?_directives.h now include
90      pkg-specific directives, whenever those are enabled.
91    o Moving pkg-specific flow directives to corresponding pkg
92      Moving pkg-specific differentiation list to corresponding pkg
93      Moving pkg-specific checkpoint-lev storing to corresponding pkg
94      ---> conventions are
95           - pkg_ad.flow
96           - pkg_ad_diff.list
97           - pkg_ad_check_lev?_dir.h
98    
99    checkpoint51i_post
100    o merge of the branch-genmake2
101      - knowingly breaks the older genmake
102      - automatic generation of all ALLOW_${PKG_NAME} defines
103      - new testreport supersedes older testscript
104    o large number of package inclusion and header cleanups
105    checkpoint51i_pre
106    
107    o new output for adjoin of global ocean vector invariant
108    o fix for checkpoint of thermodynamic seaice and bulk_force
109    o Steph gchem various cleanups
110    
111    checkpoint 51h_pre
112    o fixed some single quotes
113    o modify gchem pkg to be more versatile
114    o modifications to clean up dic pkg
115    o add pkg/cfc
116    
117    checkpoint51g_post
118    o provide links for ARPACK and ADM*TLM
119    o start removing verification/vero/
120    o update AD-related stuff
121      (in particular some IF-statements in model/src/ routines)
122    o adding to verification/global_ocean.90x40x15/ adjoint of
123      vector invariant setup
124    
125    checkpoint51f_post
126    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
127    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
128      of tracer Green's fucntions for ocean inversion project.
129    
130    checkpoint51f_pre
131    o Added on-the-fly spatial interpolation capability
132        "USE_EXF_INTERPOLATION" to pkg/exf.
133      - This is a temporary Cartesian-grid hack until
134        the super-duper ESMF coupler becomes available.
135      - See verification/global_with_exf/README for usage example.
136      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
137        flags and modified pkg/seaice accordingly.
138    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
139        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
140        non-local transport term.
141    
142    checkpoint51e_post
143    o pkg/mom_vecinv:
144      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
145      - add time-ave diagnostic of vorticity advection.
146    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
147    o atmospheric geopotential: - include water vapor effect;
148                                - use p^kappa in p* scaling.
149    o land pkg: read initial state from files.
150    o AIM : add stratospheric drag in the upper level
151    
152    checkpoint51d_post
153    o change function ILNBLNK (=> last non-blank char.) to return zero
154      (instead of the string length) when the string. char is empty
155    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
156    o modif's to restore TAMC compatibility
157      - avoid "_d" constructs in PARAMETER declarations
158      - avoid interrupting lines by comment lines
159    o Use cluster local disks for purely local I/O
160      vs. globally visible disks needed for ctrl stuff
161      (merged from ecco-branch)
162      - new active_file_loc... and mdsio_..._loc routines
163      - affected packages: autodiff, ctrl, grdchk, mdsio
164    
165    checkpoint51c_post
166    o introducing integer flag debugLevel
167      - debLevZero: suppress all output
168      - debLevA: standard
169      - debLevB: equivalent to current debugMode=.TRUE.
170    o introducing pathname variable mdsioLocalDir for mdsio
171      that can be specified at runtime
172      (relevant for cluster I/O to local disk)
173    `
174    >>>checkpoint51b_post
175    adjoint of ptracers
176    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
177    o extended state in checkpoint_lev?, etc.
178    o alternative ctrl/cost with tr1 or ptracer
179    o new comlev1_bibj_ptracers
180    o new ptracers.flow
181    o made ptracers_forcing same as external_forcing_s
182    o added verification for adjoint with ptracers
183      - adm. grdchk fail so far
184      - tlm. grdchk OK
185      - checked tapelev/comlev recomputations: OK
186    <<<checkpoint51b_pre
187    
188    checkpoint51a_post
189    o added code for biogeochemistry package
190      - new pkgs: dic, gchem
191      - new subroutine in ptracers
192    o modify code for biogeo packages
193      - in model/src and pkg/ptracers
194    
195    checkpoint51
196    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
197      - autodiff, ctrl, exf, grdchk, seaice
198      kept separate packages
199      - cost, ecco, obcs
200    o updating verification/internal_wave, verification/lab_sea
201      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
202    
203    checkpoint50i_post
204    o Preparing next differentiable checkpoint and sync
205      of MAIN vs. ecco-branch
206      - 1st step: this one is differentiable
207      - 2nd step: next(! not this) checkpoint will have updated packages
208                  from ecco-branch)
209    
210    checkpoint50h_post
211    o new package "land": provide surface BC for AIM.
212    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
213    o AIM: use true log-P extrapolation for near surface temp (= as in
214        F.Molteni paper) ; update aim.5l_cs output.
215    o New variable in PARM03 for more flexible pickups
216    o somewhat cleaned package initialisation sequence for
217      ctrl/ cost/ ecco/ in packages_... routines
218    
219    checkpoint50g_post
220    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
221      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
222      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
223        made the default because of faster convergence than ADI
224    
225    checkpoint50f_post
226    o exf totally restructured
227      - replaced all exf_set_ routines by one generic exf_set_gen.F
228        and made sure it's still differentiable
229      - split exf_getffields.F into new exf_bulkformulae.F
230      - exf_inscal_/exf_outscal_ suffixes consistent with field names
231      - updated adjoint/makefile and relevant verif. accordingly
232    
233    checkpoint50f_pre
234     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
235          + change Evap over land. (update aim.5l_cs output)
236     o added missing .cvsignores and made uniform across expts
237     o changed configuration of tidal_basin_2d expt
238     o added pkg/debug functions for tracing code in fatal crashes
239     o tidied pkg/monitor to use MONITOR_OPTIONS.h
240     o new fn in pkg/monitor to stop model if solution grows too big
241     o removed lots of single quotes from comments
242    
243    checkpoint50e_post
244    o make KPP work with PTRACERS
245     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
246       nearly a copy of kpp_transport_s
247     - there is no analogue to SurfaceTendencyS, so I have to use
248       gPtr(of the surface layer) instead
249    o add a new platform SunFire+mpi (SunFire 15000) to genmake
250    checkpoint50e_pre
251    
252    checkpoint50d_post
253    o change kpp output from multiple-record state files to single-record state
254      files analogous to write_state.F
255    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
256      analogous to the cg2d-related output.
257    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
258      so that writing to internal file fn (with length 512) fails.
259    checkpoint50d_pre
260    
261    checkpoint50c_post
262    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
263    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
264    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
265    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
266    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
267    
268    checkpoint50c_pre
269    Merging from release1_p13:
270    o bug fix for pkg/seaice dynamic solver
271    o Added SEAICE_initialHEFF to pkg/seaice
272    
273    checkpoint50b_post
274    o store u*,v* in gU,V instead of in guNm1,gvNm1
275    o in order to put the momForcing out of the Adams-Bashforth:
276      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
277      to timestep.F
278    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
279    o re-generate output for highly sensitive test-exp:
280       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
281    
282    checkpoint50b_pre
283    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
284    o corrected CPP option mismatch in exf_Bulk... functions for case
285      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
286    
287    checkpoint50a_post
288    o Bug fix for merging between c50 and KPP.
289      ikey was passed from thermodynamics to kpp_calc via
290      common block rather than being recomputed in kpp_calc,
291      in contradiction with new key itdkey.
292      New key ikppkey created, and tamc.h headers updated.
293    
294    checkpoint50
295    - 2nd step of merge with ecco-branch:
296      merge changes in ecco-branch back into main trunk
297    - bug fix in find_alpha
298    - more storing in gmredi_calc_tensor.F, kpp_routines.F
299    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
300    - merged some sliced AD support routines
301    
302    checkpoint49
303    merged from ecco-branch:
304    o exf:
305      - Enable initialisation of forcing fields to constant
306        (runtime) values.
307      - in exf_getffields.F
308        Reduce i-/j-loop to interior domain, discarding overlaps.
309        That also fixes wrong TAF-key computations for key_1, key_2
310        with bulf formulae.
311      - exf_init.F modify #ifdef for exf_init_evap
312      - exf_getffieldrec.F, ctrl_getrec.F
313        The following INT-usages are not safe:
314          fldsecs  = int(fldsecs/fldperiod)*fldperiod
315          fldcount = int(fldsecs/fldperiod) + 1
316        and were modified.
317    o autodiff: checkpoint_lev...
318      - updated storing for bulk formulae (some arrays were missing)
319      - added state for seaice package
320      - synchronized with main branch
321    o DIVA:
322      Modif.s in
323      - the_main_loop.F
324      - the_model_main.F
325      and added cost_final_restore.F cost_final_store.F
326      o With these changes, it is possible to fully separate
327        the first forward run to compute the cost function (mdthe_main_loop)
328        and adjoint runs over individual DIVA intervals (adthe_main_loop)
329        into separate model executions.
330        This enables better tuning of DIVA to given queue sizes.
331      o Loss of cost function value in consecutive DIVA runs is
332        fixed by storing to 'costfinal' file.
333      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
334        beginning/end of adjoint integration is accounted for.
335      The current changes apply to TAF-1.4.26.
336      TAF has one remaining bug, requiring one manual change
337      (see MITgcm manual).
338    o cal: synchronized between MAIN and ecco-branch
339    
340    checkpoint48i_post
341    o Changes to restore differentiability of code w.r.t. previous tag
342      (mostly adding new routines to make list and replacing
343      pressure by totPhiHyd).
344    o Updated and merged grdchk package
345      - has both ADM and TLM checks
346      - works for single- and multi-proc.
347      - output cleaned
348      - worked successfully for parallel DIVA
349    o genmake:
350      - Adding -platform=SP4
351      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
352    o Modif. for DIVA:
353      ctrl_unpack should not be called in intermediate DIVA interval.
354      (similar thing would apply for active files such as
355      tbar, sbar, psbar, which should not be reinitialised;
356      only relevant for ecco-branch)
357    
358    checkpoint48h_post
359    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
360    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
361    o Added SEAICE_initialHEFF to pkg/seaice
362    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
363    
364    checkpoint48g_post
365    --- EOS:
366    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
367      store total Potential in totPhyHyd for diagnostics & EOS.
368    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
369    --- Pressure/geopotential gradient:
370    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
371    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
372      ( changes results of global_ocean_pressure )
373    o NLFS + z-coord.: add eta*Rho' contribution.
374    o accurate phiHyd when using interface-W at the middle between 2 centers
375     ( changes results of ideal_2D_oce )
376    o includes r* 2nd term in potential gradient.
377    
378    checkpoint48f_post
379    Merging from release1_p12:
380    o Modifications for using pkg/exf with pkg/seaice
381      - improved description of the various forcing configurations
382      - added basic radiation bulk formulae to pkg/exf
383      - units/sign fix for evap computation in exf_getffields.F
384      - updated verification/global_with_exf/results/output.txt
385    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
386      (SBO) core products, including oceanic mass, center-of-mass,
387      angular, and bottom pressure (see pkg/sbo/README.sbo).
388    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
389      to avoid negative values in shallow regions.
390      - updated verification/natl_box/results/output.txt
391      - updated verification/lab_sea/results/output.txt
392    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
393    o Added useSingleCpuIO option (see PARAMS.h).
394    o Updated useSingleCpuIO option in mdsio_writefield.F to
395      work with multi-field files, e.g., for single-file pickup.
396    o pkg/seaice:
397      - bug fix in growth.F: QNET for no shortwave case
398      - added HeffFile for specifying initial sea-ice thickness
399      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
400    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
401      kpp_transport_t.F, forward_step.F, and the_main_loop.F
402    o pkg/seaice:
403      - adjoint-friendly modifications
404      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
405    
406    checkpoint48e_post
407    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
408    o dynamics: change definition of computational domain & adapt mom_fluxform
409      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
410    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
411        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
412        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
413        global_ocean.90x40x15 global_with_exf global_ocean_pressure
414        inverted_barometer solid-body.cs-32x32x1
415      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
416    
417    checkpoint48d_post
418    o in preparation for r*:
419     a) use pre-computed gradient of hydrostatic potential:
420        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
421     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
422        => affects results of glob_oce_pressure (different truncation error)  
423      update output.txt of ideal_2D_oce & global_ocean_pressure
424    
425    checkpoint48d_pre
426    o in preparation for r*:
427      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
428      pass the 2 comp. of the grad. as arguments to momentum S/R.
429      but for the moment, only used if it does not change the results.
430    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
431    
432    checkpoint48c_post
433    Modifications in treatment of initial flux forcing controls
434    to avoid extra storing of flux fields.
435    
436    checkpoint48c_pre
437    o Added tidal_basin_2d experiment (currently 1D!)
438    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
439    
440    checkpoint48b_post
441    o r* coordinate added in #ifdef NONLIN_FRSURF block.
442     (modification to pressure gradient not yet implemented)
443    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
444      (for U & V) that are used for vertical advection of momentum.
445    
446    checkpoint48a_post
447    o In preparation for r*, use temp. array to compute vertical transport
448       in flux-form momentum pkg. => change results of few test-exp.
449      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
450                        lab_sea, natl_box & plume_on_slope
451    
452    checkpoint48
453    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
454    
455    checkpoint47j_post
456    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
457    o moved adexch from forward_step to addummy_in_stepping
458    o added exch in ctrl_map_...
459    o aveFreq.=0. at end of cost_final to avoid overwrite in
460      reverse checkpointing loop
461    o Yet more changes in gmredi:
462      * adgmredi_calc_tensor
463        avoiding all recomputation of gmredi_slope_limit
464      * adgmredi_x/y/rtransport
465        added flag for excessive storing to avoid recomp. of
466        u/v/rtans, dTdx/y/z
467        -> this is not really necessary and very memory-consuming
468      * adgmredi_slope_psi:
469        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
470      * gmredi_slope_limit
471        re-activated full calculation of taperfct for case 'ac02'
472    o updating verification/ adjoints of carbon, global_ocean.90x40x15
473    
474    checkpoint47i_post
475    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
476    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
477      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
478    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
479    o gmredi: fix few bugs.
480    
481    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
482    This will be a good checkpoint to plug into the ecco-branch.
483    o few modif.'s to get latest version adjointed
484      (mainly kick out code in ini_linear_phisurf)
485    o modif's to run adjoint with exactConserv
486    o case GM_BOLUS_ADVEC should be cleaned
487      S/R gmredi_slope_psi should be cleaned
488    o verification/carbon now has exactConserv=.TRUE.
489    
490    checkpoint47g_post
491    o time-average AIM output: becomes independent from statvars time-average
492      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
493    o After TAF bug fix:
494      Tested adjoint of gmredi package.
495      Tests were done with checkpoint47 rather than with latest
496      checkpoint47f_post since the latter is broken for the adjoint
497      verification/carbon/ contains both ADM and TLM gradient checks.
498    Here they are, before they get changed/lost/stolen.
499    Mostly modif.'s to fix numerical sensitivities.
500    Gradient checks OK for
501    - GM_taper_scheme:
502      * clipping
503      * ac02
504      * linear
505      * glw91
506      * dm95
507      * ldd97
508    - GMREDI_OPTIONS:
509      * GM_VISBECK_VARIABLE_K
510      * GM_NON_UNITY_DIAGONAL
511      * GM_EXTRA_DIAGONAL
512      * GM_BOLUS_ADVEC
513    in conjunction with data.gmredi parameters to be checked in
514    in a few minutes under verification/carbon/code/
515    
516    checkpoint47f_post
517    Merging from release1_p10:
518    o modifications for using pkg/exf with pkg/seaice
519      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
520        and SEAICE_EXTERNAL_FLUXES
521      - pkg/exf CPP options EXF_READ_EVAP and
522        EXF_NO_BULK_COMPUTATIONS
523      - usage examples are Experiments 8 and 9 in
524        verification/lab_sea/README
525      - verification/lab_sea default experiment now uses
526        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
527    
528    checkpoint47e_post
529    o created a tag prior to creating a branch
530    
531    checkpoint47d_post
532    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
533      at the bottom boundary had an erroneous half slip boundary condition
534    o added bottom drag and no slip boundary condition capabilities to
535      oceanic pressure coordinates code
536    o added new verification experiment global_ocean_pressure, this experiment is
537      also described in the tutorial section of the manual
538    checkpoint47d_pre
539    
540    checkpoint47c_post
541    o Added a verification experiment for a global cubed-sphere ocean run
542      -  verification/global_ocean.cubed32x32x30
543      -  uses pkg/therm_seaice and pkg/bulk_forcing
544    
545    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
546    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
547      when using P-coordinate; only implemented for atmospheric config.
548    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
549      NOTES: requires option NONLIN_FRSURF to be "#define".
550    o update advect_xz/results/output.txt (left from checkpoint44g_post)
551    
552    checkpoint47b_post
553    Merging from release1_p9:
554    o pkg/seaice
555      - removed GOTO's and added taf directives
556      - double precision constants to reduce the g77 (Linux)
557        to F77 (SGI) differences reported in release1_p8
558    o tools/genmake
559      - added SGI options
560    o verification/testscript
561      - updated to that of checkpoint47a_post
562    o verification/global_ocean.90x40x15/input/eedata
563      - modified for SGI f77 compatibility
564    o verification/lab_sea
565      - added description of sea-ice model
566      - added missing matlab routines
567      - added test of thermodynamics parallelization
568    
569    checkpoint47a_post
570    o new pkg: aim_v23
571     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
572       for now, keep the same surface forcing as before.
573     - Part-Cell implemented into AIM; check that Heat & Water are conserved
574     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
575     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
576    o add diagnostic of surface correction term in monitor output
577    
578    o bulk_force and therm_seaice
579    - Two packages:  bulk_force (Bulk forcing)
580      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
581    - Earlier integration from Stephaine Dutkiewicz
582      and Patrick Heimbach.
583    - Two ifdef statements for compile time,
584       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
585    
586    checkpoint47
587    differentiable version of checkpoint46n_post
588    o bug fix in quasihydrostaticterms
589    o * "clean" adjoint code (in terms of extensive recomputations)
590        can now be obtained for all GMREDI options (i.e. for
591        - GM_VISBECK_VARIABLE_K
592        - GM_NON_UNITY_DIAGONAL
593        - GM_EXTRA_DIAGONAL
594        - GM_BOLUS_ADVEC )
595      * However, wrong gradient check problem remains unsolved.
596      * New CPP options have been introduced for different
597        tapering schemes
598    o external_fields_load now part of differentiation list
599    o pressure needs multiple storing;
600      would be nice to have store_pressure at beginning or
601      end of forward_step, e.g. by having phiHyd global (5-dim.)
602      (NB: pressure is needed for certain cases in find_rho,
603      which is also invoked through convective_adjustment).
604    o recomputations in find_rho for cases
605     'JMD95'/'UNESCO' or 'MDJWF' are OK.
606    o #define ATMOSPHERIC_LOADING should be differentiable
607    o ini_forcing shifted to begining of initialise_varia
608    o Incorporating QNVS line search routines into MITgcm
609      (this is separate code, and therefore not under pkg)
610      lsopt/, optim/
611    o Updated verification/carbon/
612      - #define GM_VISBECK_VARIABLE_K
613      - GM_taper_scheme    = 'ldd97'    
614    
615    checkpoint46n_post
616    Merging from release1_p8:
617    o verification/natl_box:
618      updating new external_fields_load routine
619    o New package: pkg/seaice
620      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
621      The sea-ice code is based on Hibler (1979-1980).
622      Two sea-ice dynamic solvers, ADI and LSR, are included.
623      In addition to computing prognostic sea-ice variables and diagnosing
624      the forcing/external data fields that drive the ocean model,
625      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
626      The implied surface heat flux is then stored in variable
627      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
628      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
629      non-local transport term.  Because this call precedes model
630      thermodynamics, temperature under sea-ice may not be "exactly" at
631      the freezing point by the time theta is dumped or time-averaged.
632      N.B.: fairly large differences in accuracy occur across
633            different platforms/compilers; comparison between
634            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
635            generated output gives:
636       T           S           U           V
637      C D M    c        m  s        m  s        m  s        m  s
638      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
639      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
640      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
641    
642      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
643    o GAD:
644      - generated new common blocks to account for call of
645        same gad routines with differing traceridentities
646        (needed to modify tracerIdentity indices in GAD.h)
647      - generated separate common blocks for case useCubedSphereExchange
648        (Department of Futurology)
649      - parameter lists to gmredi_?transport: added tracerIdentity
650      - added new key indices to tamc.h
651    o external_fields_load:
652      - added this routine to TAF list
653      - needed to make some common blocks global and additional storing
654        along the same lines as exf package (checkpoint_lev?_directives.h)
655    o exf:
656      updated external forcing package
657      - bug fixes carried over from ecco-branch
658        (missing OBCS_OPTIONS.h in two routines)
659      - enable easy to use "no forcing".
660      - added exf I/O for atmospheric loading
661      - added exf I/O for runoff data
662      - transfered scaling between exf <-> MITgcm to exf namelist
663    o Adding new verification experiment global_with_exf.
664      This verification experiment is almost identical to the
665      global_ocean.90x40x15 experiment, except that it uses
666      the exf (and cal) package instead of the
667      external_fields_load routine (cf README file).
668    
669    checkpoint46m_post
670    o modified testscript to return -- when there are no lines of "%MON" output
671    o added new flag "quasiHydrostatic" for QH mode
672      and new routine quasihydrostaticterms()
673    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
674      New routine: mom_u_coriolis_nh()
675    o fixed sign of non-hydrostatic metric terms in u and v equations.
676      Depend on correct sign of gravitySign.
677    o added work.pc* to .cvsignore in aim directories using ifc
678    o introduced flag for controllin non-hydrostatic metric terms
679    o removed gravitySign from PARM04
680    o switched to g77/ifc from pgf77 in aim experiments
681    
682    checkpoint46l_post
683    o made convective adjustment work with pressure coordinates:
684     - changed the direction of k-loop in convective_adjustment.F for the
685       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
686     - adjusted the reference pressure k-index in convective_adjustment.F
687     - adjusted the convection condition in convect.F (in analogy to
688       calc_ivdc.F)
689     - convective_adjustment no longer computes anything on the halos
690     - removed the warnings about negative salinity from find_rho.F and
691       find_alpha.F; instead the new routine look_for_neg_salinity, called
692       at the beginning of find_rho, find_alpha, and find_beta, does a
693       check of the entire slice, if CPP-option
694       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
695    checkpoint46l_pre
696    
697    checkpoint46k_post
698    o fixed the verification/global_ocean.90x40x15 experiment:
699     - new bathymetry (the world according to A., JMC, and M.)
700     - new initial fields and forcing fields (*.bin files)
701     - new POLY3.COEFFS (for the next release one should switch to a full
702       equation of state: JMD95P or MDJWF)
703     - fixed several errors and redundancies in the data file
704     - experiment uses looped cells
705     - added matlab directory with diagnostic scripts for plotting of output
706    
707    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
708     - read AIM physics parameters from a file (data.aimphys)
709     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
710    
711    checkpoint46j_post
712    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
713    o move wVel computation at the end of the time step, in S/R integr_continuity
714    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
715    o update timeave pkg for wVel diagnostic.
716    checkpoint46j_pre
717    
718    checkpoint46i_post
719    o Clean up AIM package (and keep the results unchanged):
720      include CPP_OPTION and use IMPLICT NONE in all routines ;
721      declare all the variables _RL ; use _d 0 for all numerical constants.
722      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
723    
724    checkpoint46h_post
725    o cleaned up the use of rhoNil and rhoConst.
726      - rhoNil should only appear in the LINEAR equation of state, everywhere
727        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
728        and the dynamical equations are all divided by rhoConst
729    o introduced new parameter rhoConstFresh, a reference density of fresh
730      water, to remove the fresh water flux's dependence on rhoNil. The default
731      value is 999.8 kg/m^3
732    o cleanup up external_forcing.F and external_forcing_surf.F
733      - can now be used by both OCEANIC and OCEANICP
734    checkpoint46h_pre
735    
736     Added code to convert surface volume flux (fresh water) into
737     a mass flux when using P coordinates in the ocean (OCEANICP).
738     Note: It assumes you have set rho0=rhoConst=density of fresh water.
739    
740    checkpoint46g_post
741    o Include a new diagnostic variable phiHydLow for the ocean model
742      - in z-coordinates, it is the bottom pressure anomaly
743      - in p-coordinates, it is the sea surface elevation
744      - in both cases, these variable have global drift, reflecting the mass
745        drift in z-coordinates and the volume drift in p-coordinates
746      - included time averaging for phiHydLow, be aware of the drift!
747    o depth-dependent computation of Bo_surf for pressure coordinates
748      in the ocean (buoyancyRelation='OCEANICP')
749      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
750        Theta, Salinity, and Pressure in the parameter list. This routine is
751        presently contained in find_rho.F. This routine does not give the
752        correct density for 'POLY3', which would be a z-dependent reference
753        density.
754    o cleaned up find_rho
755      - removed obsolete 'eqn' from the parameter list.
756    o added two new verification experiments: gop and goz
757      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
758    checkpoint46g_pre
759    
760    checkpoint46f_post
761    o Enable tangent linear (forward mode) gradient checks:
762      - extended active file handling to g_... files
763      - added TANGENT_SIMULATION to theSimulationMode
764      - extended grdchk package accordingly
765    o added tangent linear setup in verification/carbon/code_ftl
766    o added adjoint setup in verification/front_relax/code_ad
767    
768    checkpoint46e_post
769    o Added new equation of state -> MDJWF
770      - EOS of McDougall et al., 2002, JAOT, submitted
771      - caveat: the equation of state is only valid for a smaller (more
772        realistic?) range of values than JMD95P/Z and UNESCO
773      - added masks to the calculation of pressure in store_pressure
774      - added more check values for density in check_eos (ini_eos.F), some of
775        the old check values are out of the range of the MDJWF-eos, so don't
776        expect perfect matches for those
777    checkpoint46e_pre
778    
779    checkpoint46d_post
780    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
781      'OCEANICP', also initialised field pressure correctly in ini_eos in the
782      case of pressure coordinates. eosType='JMD95Z' in
783      combination with buoyancyRelation='OCEANICP' now causes an error.
784    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
785      in find_alpha/beta.
786    checkpoint46d_pre
787    
788    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
789      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
790    
791    checkpoint46c_post
792    o Changes necessary for ocean in p-coordinates
793     -  Added new buoyancy relation = 'OCEANICP'
794     -  Added new parameters = gravitySign (this used to be contained inside
795        the factor dRdZ which I added when we first switched to R coordinates).
796     X GM/Redi is not compatible (yet)
797     X bottom drag and no-slip need to be debugged.
798    checkpoint46c_pre
799    
800    checkpoint46b_post
801    o Added new equation of state -> JMD95Z and JMD95P
802      - EOS of Jackett and McDougall, 1995, JAOT
803      - moved all EOS parameters into EOS.h
804      - new routines ini_eos.F, store_pressure.F
805    o Added UNESCO EOS, but not recommended because it requires
806      in-situ temperature (see JMD95)
807    o Modified formatting for knudsen2.f in utils/knudsen2 and added
808      unesco.f to be used with POLY3
809    checkpoint46b_pre
810    
811    checkpoint46a_post
812    o Added (atmospheric) pressure loading
813      - new field in FFIELDS.h, etc...
814      - new cpp flag ATMOSPHERIC_LOADING
815    o Changed hFacC to _hFacC in calc_phi_hyd.F
816    o Added SHORTWAVE_HEATING to some files for consistency
817    checkpoint46a_pre
818    
819    checkpoint46
820    further merges from release1_p5
821    o new ctrl package
822      - adopted from ECCO environment to enable optimization
823      - added Eliassen Palm fluxes to controls
824    o added Eliassen Palm flux controls to gradient check package
825    o cost package
826      - Compatible with new ctrl package
827      - added Eliassen Palm cost hooks
828      - modif's of existing cost functions
829    o Adjoint-related bug fixes in kpp:
830      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
831      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
832    o autodiff package
833      - flow directives:
834        + new for S/R do_the_model_io
835        + enhanced for S/R checkpoint
836        + new gmredi.flow
837      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
838        disable adcommon.h/g_common.h by default.
839      - fixed problem for adjoint of global_max
840    o modified verification/carbon/
841    o New setup for adjoint of global_ocean
842    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
843    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
844    o incorporated hooks for sponge layer code (external_forcing.F)
845    
846    checkpoint45d_post
847    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
848    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
849      (affects plume_on_slope "cg2d" output)
850    o add new parameter deltaTfreesurf for free-surface time stepping
851    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
852    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
853    o change phiMin in exp1 (to agree with documentation)
854    o add new flags:
855     - T,S forcing inside/outside Adams-Bashforth
856     - turn off temp,salt advection and/or forcing
857     - for each tracer, define internal flag for multiDimAdvection & A-B
858    o monitor: change definition of KE to check conservation of Energy
859    
860    checkpoint45c_post
861    o Removed f90 comments ("!")
862    o Modified initialisations to enable exf package for MITgcm
863      (without invoking ECCO_PACKAGE).
864    o modifications to gradient check package (Martin Losch)
865      - enable centered differences
866      - modified format of standard output
867    
868    checkpoint45b_post
869    o cleaned exchange calls in cg2d
870    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
871    o included CPP option SINGLE_LAYER_MODE in thermodynamics
872      to configure barotropic setup (Martin Losch)
873    o moved some initialisations within bi,bj loop in dynamics
874      (TAF flow dependency)
875    o in initialise_varia, moved call packages_init_variables
876      before convective_adjustment_init
877      (corresponding adjustment of TAF tape initialisation).
878    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
879    
880    checkpoint45a_post
881    o compute Rho over the whole domain (extend iMin,jMin indices)
882    o specific exchange for X-slice domain (case Ny=1)
883    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
884    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
885    
886    checkpoint44h_post = checkpoint45
887    o Fix to restore differentiability:
888      place at which packages_init_variables is called in
889      initialise_varia is crucial for reverse control flow.
890    o modifications in GMRedi to enable stable adjoint
891      (corresponding modif's in thermodynamics, dynamics)
892    o added missing hook for sponge layer code in external_forcing
893    o modified test cost functions
894    o storing in gad_advection (plus removal of write(0,*)!
895    o missing headers TR1.h added in convective_adjustment routines
896    o errorMessageUnit set non-equal zero in eeboot
897      (conflict on some platforms, e.g. IBM SP3)
898    o modified carbon verif.
899    
900    checkpoint44h_pre
901    o vertical grid option: allow to put the Interface at the middle between
902      2 cell-centers ; replace delZ in pkg/kpp by drF.
903    o GM Advective form: Tracers are advected using the residual transport (=
904      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
905    
906    checkpoint44g_post
907    o fix surface correction term in multiDimAdvection (affects plume_on_slope
908      results) ; ifdef missing in thermodynamics.F
909    
910    checkpoint44f_pre,checkpoint44f_post
911    o added PTRACERS package
912      This allows an arbitrary number of passive tracers to be integrated
913      forward simultaneously with the dynamicaly model.
914      + Implemented so far:
915        - basic forward algorithm (time-stepping, advection, diffusion, convection)
916        - I/O and checkpointing
917        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
918      + Not implemented so far:
919        - KPP
920        - OBCS
921      + No specific example supplied (yet) but global_ocean.90x40x15 has the
922        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
923        line in data.pkg.
924      + This package is disabled by default since it increases storage.
925    
926    
927    o testscript: added -cleanup option
928    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
929                 b) enable to filter 2D fields.
930    
931    checkpoint44e_pre,post
932    o re-wrote convective adjustment to use pre-calculated weights
933      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
934      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
935      Original calls to convect() still in place.
936    
937    chkpt44d_pre,post
938    o added missing EXCLUDE_MONITOR flags
939    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
940      (incompatible typ in MIN/MAX expressions caused problems
941      on IBM SP3)
942    o in genmake added variable MAKEDEPEND
943      plus resetting for case SunOS
944    o added timer_stats.c routine for IBM SP3
945    o removed variables in dynamics
946    !!! I forgot to create tag chkpt44d_pre !!!
947    !!! But chkpt44d_pre = chkpt44c_post    !!!
948    
949    o real fresh water flux implemented with non-linear free-surface.
950    
951    chkpt44c_pre,post
952    o few fix (mask in shap_s2, EmPmR in external_field_load,
953      USE_NATURAL_BCS in solve_for_P);
954    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
955    
956    checkpoint44b_pre/_post
957    o merge of relevant stuff from the ecco-branch:
958      - genmake: removed $S64 overwrite for case SunOS
959      - pkg/exf: update and corrections for field swapping and obcs
960      - pkg/ecco: parameter lists for the_model_main, the_main_loop
961                  harmonized between ECCO and MITgcm
962      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
963                      updated checkpointing_lev... lists for obcs
964      - model/src: minor changes in forward_step, plot_field
965                   added directive for divided adjoint in the_main_loop
966      - pkg/mdsio: added mdsio_gl_slice
967    
968    o check parameters & config (chkpt44a_pre,post)
969    o OBC and NonLin_FrSurf.
970    
971    checkpoint44
972    o fix bug in mom_vi_del2uv
973    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
974    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
975    o update AIM experiments (NCEP input files)
976    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
977    o added some stuff for AD
978    
979    checkpoint43
980    o added two new advection tests
981    o added global 4x4 degree ocean test
982    o added test of H&S94 with free surface on cube
983    o some final mods for gradient check, adjoint,...
984    
985    checkpoint42
986      Fixed AD-related problems:
987    o Store directives up-to-date with re-arranged Adams-Bashforth
988      (mainly thermodynamics.F)
989    o New store directives for multi-dim. advection schemes
990      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
991      * new common block and key passkey
992      (mainly gad_advection.F)
993    o Modified store directives for split of dynamics/thermodynamics
994      for the case ALLOW_KPP
995    o Cleaned argument list for timestep_tracer.F
996    
997    checkpoint41
998    o re-formatted/added comments in prologues of key subroutines
999      to work with protex
1000    
1001    checkpoint40
1002    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1003    o added FLT (floats) package from Arne along with demo. experiment
1004    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1005      implementation of forward-in-time forcing terms
1006    o more mods for non-linear free-surface including new variable
1007    o modified multi-dim method to work on cube
1008    o bug fix in KPP (from DM)
1009    
1010    checkpoint40pre9
1011    o added DST advection schemes
1012    o fix MPI bug on SGI's
1013    o modifications for non-linear free-surface
1014    o fixed conditionals for fixed flow/passive tracer only mode
1015    o added tension/strain form of stress tensor
1016    o changes to commenting of arguments for TAF/TAMC
1017    o added/updated many matlab scripts
1018    o added multi-dimensional advection method for tracers
1019      
1020    checkpoint40pre8
1021    o new package rw/
1022      Added method for dumping intermediate local arrays:
1023      mdsio_writetile - same as mdsio_writefield except works from inside
1024                        bi,bj loop
1025      mdsio_writelocal - same as mdsio_writetile except works for local
1026                         arrays
1027      write_local_r? - higher-level wrapper for mdsio_writelocal
1028      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1029      Example given at end of mom_vecinv.F that dumps some local arrays.
1030    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1031      control flux-form versus vector invariant code.
1032      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1033      or genmake -DISABLE ...
1034    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1035      (additional storing is now needed for case vecinv;
1036      currently nothing implemented to switch this storing off
1037      in case fluxform is used since no CPP flag available).
1038    
1039    checkpoint40pre7
1040    o bug fix in dynamics.F
1041      calc_viscosity called before k=1,Nr loop.
1042    o added some #ifdef's ALLOW_PASSIVE_TRACER
1043    o cleaned initialisations in ctrl_map_ini
1044      related to TAF
1045    
1046    checkpoint40pre6
1047    o split dynamics into thermodynamics & dynamics
1048    o corresponding split of calc_diffusivity into
1049      calc_diffusivity, calc_viscosity
1050      (kpp_calc_diff, kpp_calc_visc).
1051    o Added diffkr, kapgm to control variables
1052    o bug fix in gmredi_slope_limit for ldd97
1053    
1054    checkpoint40pre5
1055    o proper initialization of Adams-Bashforth time stepping
1056      + uses forward step for very first step of model (iter=0)
1057    o re-generated *all* output since almost all output is modified by this
1058      change (sorry but we've been putting this one off for about 2 years)
1059      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1060        *not* regenerated since they are already out of date and I don't
1061        want to create the impression that they are suddenly working.
1062    o removed KAP stuff for DEC's
1063    o modified/added many .cvsignore files in */code and */input
1064    o added new expt "solid-body.cs-32x32x1"
1065      + this uses an alternative form of ini_curvilinear_grid.F which
1066        is not necessarily any better than the current one...
1067    
1068    checkpoint40pre4
1069    o added re-initialisations of utrans,vtrans,rtrans in
1070      calc_common_factors which are crucial for TAF.
1071    o extended iMin,jMin range for calc_common_factors,
1072      calc_diffusivity
1073    o added option ALLOW_PASSIVE_TRACER
1074    o a few minor updates and fixes
1075    
1076    checkpoint40pre3
1077    o created calc_gtr1.F for gad package
1078    o split the_main_loop and re-introduced forward_step
1079    o some recomputations of nIter0 for TAMC
1080    
1081    checkpoint40pre2
1082    o Updated to latest branch of AJA, JMC
1083    o Added gradient check package
1084    o Added routines for passive tracer handling
1085    o Added carbon sequestration sensitivity experiment
1086    
1087    checkpoint39
1088     o Modifications and fixes to support TAMC
1089       (mainly missing or wrong directives)
1090     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1091       in addummy_in_stepping
1092     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1093     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1094     o Included following packages:
1095       cal: calendar
1096       exf: external forcing
1097       ecco: essential routines to control use of cal, exf
1098             (NB: this is not the full ECCO environment)
1099     o disabled some packages by default in genmake
1100    
1101    checkpoint38
1102     o see notes_c37_adj.txt
1103     o corrected wrong layer index in external_forcing_t
1104     o replaced the_main_loop/forward_step by the_main_loop
1105     o removed forceoutput from write_state
1106       (replaced criteria for initial/final state)
1107     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1108    
1109    checkpoint37
1110     o mdsio.F routine split and packaged in pkg/mdsio
1111       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1112        used unless genmake -disable=mdsio)
1113     o allow a more precise surface-geopotential gradient for the atmosphere
1114       taking into account the change in space of Alpha (=1/rho) at the surface.
1115     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1116       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1117     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1118       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1119       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1120     o Time-Average diagnostics defined as a pseudo package "timeave".
1121     o pickup files : old pickup (before c35) did not work with new code (c35
1122       and after) unless activating 2 commented lines in initialise-varia.
1123     o Non-Hydrostatic pickup file Pb fixed.
1124     o bug with Rigid-lid version (since c35) fixed.  
1125    
1126    checkpoint36
1127     o implement Crank-Nickelson barotropic time-stepping
1128     o recover Time-Average diagnostics
1129     o fix Pb in checkpoint (PR#19)
1130     o AIM become a standard package ; clean unused CPP_kees
1131    
1132    checkpoint35
1133     o subtantial rewrite of dynamics.f
1134     o allows staggered time-stepping
1135     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1136     o added bottom drag (linear + quadratic)
1137    
1138    checkpoint34
1139     o Modified exchange routines for correct reverse simulation.
1140     o Added verification output to comply with bug fix in impldiff.F
1141       as of c33 (exp2, natl_box).
1142     o Corrected store directives in dynamics.F
1143     o Corrected array boundaries in impldiff.F
1144     o Corrected array dimensions in gmredi.
1145       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1146     o Added routine GLOBAL_SUM_INT to global_sum.F
1147     o Added mdsio_gl.F for ECCO purposes.
1148    
1149    checkpoint33
1150     o Fixed bug in lower BC in impldiff.F
1151     o Fixed confusion about units of forcing arrays in FFIELDS.h
1152       namely Fu,Fv,Qnet,Qsw,EmPmR:
1153       - Removed verification/natl_box/code/external_fields_scale.F
1154         (did not differ from that in model/src)
1155       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1156         (see FFIELDS.h for description)
1157       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1158         kpp_calc.F and kpp_transport_t.F
1159       - Removed model/src/external_fields_scale.F and calls to it
1160       - verification/natl_box uses flux data with "atmospheric" sign so
1161         a special version of external_fields_load.F is used to
1162         change the data as it's read in. This way, the arrays
1163         have the right units and signs at all times tha a user could
1164         possibly use them.
1165     o Corrected genmake to delete a temporary file during configuration
1166    
1167    checkpoint32
1168     o Scaling of forcing fields moved from external_forcing.F to
1169       external_fields_scale.F, called directly after loading fields.
1170     o Surface relaxation terms added to surface tendency fields in
1171       extra subroutine.
1172     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1173       fields.
1174     o Changes in GMRedi to comply with packaging structure.
1175     o Modifications and bug fixes in KPP package.
1176     o Verification experiment for KPP added (verification/nat_box/)
1177    
1178    checkpoint31
1179     o Packages interface brought in line with defined standard
1180       -> new routines packages_...F
1181       -> changes in initialise_fixed.F, initialise_varia.F
1182       -> enables initialisation interface for ECCO package
1183     o Rescaling of external forcing fields immediately after read
1184       (removed from external_forcing.F)
1185       -> new: surface_fields_scale.F
1186       -> affects ini_foorcing.F, external_fields_load.F
1187     o Computation of surface tendencies before tendency updates.
1188       -> new: external_forcing_surf.F
1189     o Change of variable names useGMRedi, useKPP, useECCO
1190     o Further changes in dynamics.F, impldiff.F for TAMC
1191     o Tested for experiments 0, 2, 4.
1192       - not yet tested for GMRedi.
1193       - not yet tested for KPP.
1194    
1195    checkpoint30
1196     o Updates for OBCs
1197     o New experiment for test OBCs (internal_wave)
1198     o New output.txt in verification/exp4/results/
1199     o Updates for KPP: calculation of viscosity corrected, new variables
1200       kpp_dumpFreq and kpp_taveFreq
1201     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1202       and entry for T90 in genmake
1203    
1204    checkpoint29
1205     o packaged KPP and GM/Redi
1206    
1207    checkpoint28
1208     o Corrected initialization of hFacMin for difference vertical coordinates
1209     o Modified calculation of partial cell thickness to more robust algorithm
1210     o config_summary.F: replaced write_1D_... by write_0D_...
1211       read_write.F: added subroutines write_0D_...
1212     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1213       included some initialisations required for TAMC.
1214     o routine calc_isoslopes: modified sqrt computation to make it
1215       differentiable for zero argument.
1216     o routines dynamics, impldiff:
1217       included store directives and tape key computations required for TAMC.
1218     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1219    
1220    checkpoint27
1221     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1222       formulation works properly with variable resolution.
1223     o restructured the calling tree between the_model_main() and dynamics()
1224     o split initialise() into initialise_fixed() and initialise_varia()
1225     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1226       in new routine ini_psurf()
1227    
1228    checkpoint26
1229     o moved some #ifdef in optional routines to encompass everything
1230       except the argument declarations. This was using up some memory.
1231     o fixed macros like _ADT to work with both versions of Linux cpp
1232     o cleaned up some unused and uninitialized variables
1233       (helps when debugging with strict compile options)
1234     o split up CPP_EEOPTIONS.h into options and macros
1235       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1236     o patch for 2 processor JAM mode
1237    
1238    checkpoint25
1239     o updates for OBCs and NH
1240     o dramatically reduced memory usage
1241     o added "JAM" routines for use on Artic network
1242     o parameterization of convection by implicit vertical diffusion
1243     o added a diagnostic of convective index
1244     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1245       (this is was partly for OBCs and NH but also in anticipation of
1246        an explicit free-surface option)
1247     o initial state input files for U and V
1248    
1249    checkpoint24
1250     o Removed some spurious "REAL"s
1251     o Updated KPP to latest version from JPL
1252     o Added a COS(latitude) in horizontal viscosity
1253    
1254    checkpoint23
1255     o Added del^4 diffusion for salt and temperature
1256     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1257    
1258    checkpoint22
1259     o Made many small changes: implicit none, format(i5), etc...
1260     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1261    
1262    checkpoint21
1263     o Introduced new I/O package that supports direct-access records (mdsio.F)
1264     o Split-up mid-level I/O routines
1265     o Updated input data for experiments 0,1,2,4 and 5
1266     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1267    
1268    checkpoint20
1269     o Tidied up open-boundaries some more
1270     o Added non-hydrostatic code
1271     o Fixed some input data
1272     o Modified MPI start-up to work in "coupled" context.
1273    
1274    checkpoint19
1275     o Tidied up directory structure for verification experiments.
1276     o Added new code for open boundaries.
1277     o Corrected advective terms near boundaries.
1278     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1279     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1280     o Split default parameters out of ini_parms.F into set_defaults.F.
1281    
1282    checkpoint18
1283     o Further changes for optional code generation with
1284       CPP - ugh!
1285    
1286    checkpoint17
1287     o Beginning to incorporating modularity
1288       for supporting atmos. and ocean configs.
1289     o Small changes for TAMC complinace
1290     o New ultra simple test case. Barotropic box
1291       configuration "exp0".
1292    
1293    checkpoint16
1294     o Minor changes to exchange routines to support
1295       accumulation in reverse mode. Adjoint of an
1296       assignment is an addition.
1297     o Changes to support compilation by TAMC (LR(1)
1298       syntax) and by g77 under Linux ( 72 character
1299       limit ).
1300    
1301    checkpoint15
1302     Rewrote exchange routines to allow
1303     o General tile <-> tile connectivity.
1304     o TAMC reverse mode flag ( is this really needed? )
1305     o Variable width overlap and exchange region widths.
1306     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1307       shmput/shmget, VIA, SYSV shmem and every other cool
1308       communication method.
1309    
1310    checkpoint14
1311     Consistent isomorphism chages made. These allow dynamical core
1312     to support both pressure and meters as a vertical coordinate.
1313    
1314    checkpoint13
1315     Release which corrects global_max problem and a couple
1316     of KGM time-averaging diagnostic errors. Also contains
1317     a double-gyre experiment setup as well as the baseline
1318     4 degree global template. The double gyre template is
1319     organised to allow it to be applied automatically to
1320     the baseline configuration.
1321    
1322    branch-point-rdot
1323     A few tidy-ups have been made bt the real point of this
1324     check-point (excuse the pun) is to allow a branch to be
1325     made for the purposes of adding the rDot alterations.
1326     I don't want to commit the rDot to the main-trunk until
1327     we've actually tested it...
1328    
1329    checkpoint12
1330     Tidy up and added generic genmake script (formerly
1331     configure script).
1332     Released to testers.
1333    
1334    checkpoint11
1335     Re-arranged initialise() and introduced ini_vertical_grid()
1336     and ini_masks_etc().
1337    
1338    checkpoint10
1339     Introduced the configure script.
1340     Separated out the diags package.
1341     Added template for writing time-averages of tile/intermediate quantities.
1342     Updated SIZE.h in exp2 and made the data big-endian.
1343    
1344    checkpoint9
1345     MPI fix. Filename changes (meta/data). salbin*y stuff.
1346     General tidy-up.
1347     SST.bin SSS.bin added to verification/exp2
1348    
1349    checkpoint8
1350     Inludes time-dependant forcing and time-averaging.
1351     Works at 4x4 and 2.8125x2.8125 global
1352    
1353    checkpoint7-4degree-ref
1354     Branch from checkpoint7. Released for application to
1355     global modeling and general modeling - process studies, regional
1356     model etc..
1357     Configured for verification/exp2 - 4 degree global, two process.
1358    
1359    checkpoint7
1360     Created by cnh
1361     Simple 4 degree global simulation
1362     configuration.
1363     Includes climatological wind,
1364     hydrography, bathymetry etc
1365     Does not include Heat Flux and E-P
1366    
1367  checkpoint6  checkpoint6
1368   Created by cnh   Created by cnh
1369   merged checkpoint5 with CD and   merged checkpoint5 with CD and

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