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revision 1.9 by adcroft, Thu Jul 2 14:20:04 1998 UTC revision 1.203 by edhill, Tue Nov 4 21:42:15 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint51s_post
7    o cleanup: removed various obsolete #define-s
8    
9    checkpoint51r_post
10    o cleaned up or removed CPP_OPTIONS.h files
11    o updated results for some of the tests to reflect the new
12      optfiles (-ieee: -O0 instead of -O3)
13    
14    checkpoint51q_post
15    o cd_code:
16      - moved cd_scheme.F -> cd_code_scheme.F
17      - separate read_checkpoint from cd_code_ini_vars.F
18      - separated cd_code part from write_checkpoint
19      - updated AD_SOURCE, generated .flow
20      - added CD_CODE_VARS.h to the_main_loop
21      - Moving cd_code specific store dir.s to pkg/cd_code
22    o ctrl package totally restructured
23      - pack/unpack now optional and decoupled from
24        xx_/adxx_ I/O
25      - ctrl_pack/unpack cleaned
26        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
27      - confined inclusion of AD_CONFIG.h to where necessary.
28    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
29    
30    checkpoint51p_post
31    o create initial cd_code package
32      - WARNING: the initialization of fields within packages
33        is broken because INI_FIELDS (where READ_CHECKPOINT is
34        called) is called *before* PACKAGES_INIT_VARIABLES.
35        This seems to be backwards since
36        1) its important to initially zero the entire field including
37           the "halo" region
38        2) zeroing needs to be done *before* reading pickup info
39           and the pickup call might or might not happen in any
40           particular run
41      - this needs an overhaul for R2
42    o cleanup verification/*/code/GMREDI_OPTIONS.h
43    o cleanup testreport
44    
45    checkpoint51o_post
46    o bringing AD-related verif's up to date with genmake2
47      - carbon/
48      - global_ocean.90x40x15/
49      - hs.94.1x64x5/
50      - (front_relax/ )
51    o (more) consistent directory structure for AD-related verif.'s
52    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
53    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
54    o bug fix in find_alpha.F for MDJWF:
55      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
56        change rho -> rho-rhoConst
57      - replace call find_rho to find_rhonum
58    o initialisation of rFlx extended to full array (required by TAF)
59      and shifted to thermodynamics
60    o removed PTRACERS.h in ptracers routine
61    o added surfacetendencyPtr to S/R parameter list pracers_forcing
62    o Correcting initialisations for fVerU, fVerV.
63    o helping TAF to recognize dependency on kUp for
64      fVerU, fVerV
65    o Replacing delZ by delR in pkg/ctrl/
66    checkpoint51o_pre
67    
68    o undid all of cp51 pending some cleanups and discussion
69    o added the [#include "AD_CONFIG.h"] statement to all files that need
70       it for adjoint/tl #defines
71     o re-worked the build logic in genmake2 to support AD_CONFIG.h
72     o removed tools/genmake since it no longer works
73    
74    checkpoint51n_post
75    o modifications to make FREEZE flux visible to pkg/kpp
76      - moved surfaceTendencyTice from pkg/seaice to main code
77      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
78      - subroutine FREEZE now limits only surface temperature
79        (this means new output.txt for global_ocean.90x40x15,
80         global_ocean.cs32x15, and global_with_exf)
81    o added surface flux output variables to TIMEAVE_STATVARS
82    
83    checkpoint51n_pre
84    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
85    o added [#include "AD_CONFIG.h"] to all files that use the following
86      defines:
87      - ALLOW_ADJOINT_RUN
88      - ALLOW_TANGENTLINEAR_RUN
89      - ALLOW_ECCO_OPTIMIZATION
90    
91    checkpoint51m_post
92    o incorporating changes to get TAMC/TAF working in genmake2
93      - added new TAMC/TAF targets to the Makefile
94      - various cleanups related to package handling
95      - these changes should have no impact on the forward model
96    
97    checkpoint51l_post
98    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
99     - faster algorithm for cal_addtime.F
100     - higher precision arithmetic, where needed
101     - pkg/exf *startdate variables changed from calendar date to
102       model integration time
103    
104    checkpoint51l_pre
105    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
106    o enable to apply restoring on S & T only in a latitude band.
107    o update output (external_forcing_surf modif. change truncation errors)
108       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
109    
110    checkpoint51k_post
111    o change default to: useNHMTerms=.FALSE.
112     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
113       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
114     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
115        exp1, ideal_2D_oce
116     - change data file of oceanic exp (leave the results unchanged for now)
117       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
118    o set gravitySign automatically according to the vertical coordinate used
119      (and change sign: back to "logical" value: +1 when R increases downward)
120    o added an include barrier to the default CPP_OPTIONS.h and
121      removed the #include "PACKAGES_CONFIG.h" from it
122    o fix a bug in mom_fluxform (from chk51j_post)
123    
124    checkpoint51j_post
125    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
126    o adjusted some flow directives (dynamics, thermodynamics)
127    o added cubed-sphere case to test cost function
128    o heckpoint_lev?_directives.h now include
129      pkg-specific directives, whenever those are enabled.
130    o Moving pkg-specific flow directives to corresponding pkg
131      Moving pkg-specific differentiation list to corresponding pkg
132      Moving pkg-specific checkpoint-lev storing to corresponding pkg
133      ---> conventions are
134           - pkg_ad.flow
135           - pkg_ad_diff.list
136           - pkg_ad_check_lev?_dir.h
137    
138    checkpoint51i_post
139    o merge of the branch-genmake2
140      - knowingly breaks the older genmake
141      - automatic generation of all ALLOW_${PKG_NAME} defines
142      - new testreport supersedes older testscript
143    o large number of package inclusion and header cleanups
144    checkpoint51i_pre
145    
146    o new output for adjoin of global ocean vector invariant
147    o fix for checkpoint of thermodynamic seaice and bulk_force
148    o Steph gchem various cleanups
149    
150    checkpoint 51h_pre
151    o fixed some single quotes
152    o modify gchem pkg to be more versatile
153    o modifications to clean up dic pkg
154    o add pkg/cfc
155    
156    checkpoint51g_post
157    o provide links for ARPACK and ADM*TLM
158    o start removing verification/vero/
159    o update AD-related stuff
160      (in particular some IF-statements in model/src/ routines)
161    o adding to verification/global_ocean.90x40x15/ adjoint of
162      vector invariant setup
163    
164    checkpoint51f_post
165    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
166    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
167      of tracer Green's fucntions for ocean inversion project.
168    
169    checkpoint51f_pre
170    o Added on-the-fly spatial interpolation capability
171        "USE_EXF_INTERPOLATION" to pkg/exf.
172      - This is a temporary Cartesian-grid hack until
173        the super-duper ESMF coupler becomes available.
174      - See verification/global_with_exf/README for usage example.
175      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
176        flags and modified pkg/seaice accordingly.
177    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
178        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
179        non-local transport term.
180    
181    checkpoint51e_post
182    o pkg/mom_vecinv:
183      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
184      - add time-ave diagnostic of vorticity advection.
185    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
186    o atmospheric geopotential: - include water vapor effect;
187                                - use p^kappa in p* scaling.
188    o land pkg: read initial state from files.
189    o AIM : add stratospheric drag in the upper level
190    
191    checkpoint51d_post
192    o change function ILNBLNK (=> last non-blank char.) to return zero
193      (instead of the string length) when the string. char is empty
194    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
195    o modif's to restore TAMC compatibility
196      - avoid "_d" constructs in PARAMETER declarations
197      - avoid interrupting lines by comment lines
198    o Use cluster local disks for purely local I/O
199      vs. globally visible disks needed for ctrl stuff
200      (merged from ecco-branch)
201      - new active_file_loc... and mdsio_..._loc routines
202      - affected packages: autodiff, ctrl, grdchk, mdsio
203    
204    checkpoint51c_post
205    o introducing integer flag debugLevel
206      - debLevZero: suppress all output
207      - debLevA: standard
208      - debLevB: equivalent to current debugMode=.TRUE.
209    o introducing pathname variable mdsioLocalDir for mdsio
210      that can be specified at runtime
211      (relevant for cluster I/O to local disk)
212    `
213    >>>checkpoint51b_post
214    adjoint of ptracers
215    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
216    o extended state in checkpoint_lev?, etc.
217    o alternative ctrl/cost with tr1 or ptracer
218    o new comlev1_bibj_ptracers
219    o new ptracers.flow
220    o made ptracers_forcing same as external_forcing_s
221    o added verification for adjoint with ptracers
222      - adm. grdchk fail so far
223      - tlm. grdchk OK
224      - checked tapelev/comlev recomputations: OK
225    <<<checkpoint51b_pre
226    
227    checkpoint51a_post
228    o added code for biogeochemistry package
229      - new pkgs: dic, gchem
230      - new subroutine in ptracers
231    o modify code for biogeo packages
232      - in model/src and pkg/ptracers
233    
234    checkpoint51
235    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
236      - autodiff, ctrl, exf, grdchk, seaice
237      kept separate packages
238      - cost, ecco, obcs
239    o updating verification/internal_wave, verification/lab_sea
240      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
241    
242    checkpoint50i_post
243    o Preparing next differentiable checkpoint and sync
244      of MAIN vs. ecco-branch
245      - 1st step: this one is differentiable
246      - 2nd step: next(! not this) checkpoint will have updated packages
247                  from ecco-branch)
248    
249    checkpoint50h_post
250    o new package "land": provide surface BC for AIM.
251    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
252    o AIM: use true log-P extrapolation for near surface temp (= as in
253        F.Molteni paper) ; update aim.5l_cs output.
254    o New variable in PARM03 for more flexible pickups
255    o somewhat cleaned package initialisation sequence for
256      ctrl/ cost/ ecco/ in packages_... routines
257    
258    checkpoint50g_post
259    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
260      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
261      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
262        made the default because of faster convergence than ADI
263    
264    checkpoint50f_post
265    o exf totally restructured
266      - replaced all exf_set_ routines by one generic exf_set_gen.F
267        and made sure it's still differentiable
268      - split exf_getffields.F into new exf_bulkformulae.F
269      - exf_inscal_/exf_outscal_ suffixes consistent with field names
270      - updated adjoint/makefile and relevant verif. accordingly
271    
272    checkpoint50f_pre
273     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
274          + change Evap over land. (update aim.5l_cs output)
275     o added missing .cvsignores and made uniform across expts
276     o changed configuration of tidal_basin_2d expt
277     o added pkg/debug functions for tracing code in fatal crashes
278     o tidied pkg/monitor to use MONITOR_OPTIONS.h
279     o new fn in pkg/monitor to stop model if solution grows too big
280     o removed lots of single quotes from comments
281    
282    checkpoint50e_post
283    o make KPP work with PTRACERS
284     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
285       nearly a copy of kpp_transport_s
286     - there is no analogue to SurfaceTendencyS, so I have to use
287       gPtr(of the surface layer) instead
288    o add a new platform SunFire+mpi (SunFire 15000) to genmake
289    checkpoint50e_pre
290    
291    checkpoint50d_post
292    o change kpp output from multiple-record state files to single-record state
293      files analogous to write_state.F
294    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
295      analogous to the cg2d-related output.
296    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
297      so that writing to internal file fn (with length 512) fails.
298    checkpoint50d_pre
299    
300    checkpoint50c_post
301    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
302    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
303    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
304    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
305    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
306    
307    checkpoint50c_pre
308    Merging from release1_p13:
309    o bug fix for pkg/seaice dynamic solver
310    o Added SEAICE_initialHEFF to pkg/seaice
311    
312    checkpoint50b_post
313    o store u*,v* in gU,V instead of in guNm1,gvNm1
314    o in order to put the momForcing out of the Adams-Bashforth:
315      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
316      to timestep.F
317    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
318    o re-generate output for highly sensitive test-exp:
319       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
320    
321    checkpoint50b_pre
322    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
323    o corrected CPP option mismatch in exf_Bulk... functions for case
324      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
325    
326    checkpoint50a_post
327    o Bug fix for merging between c50 and KPP.
328      ikey was passed from thermodynamics to kpp_calc via
329      common block rather than being recomputed in kpp_calc,
330      in contradiction with new key itdkey.
331      New key ikppkey created, and tamc.h headers updated.
332    
333    checkpoint50
334    - 2nd step of merge with ecco-branch:
335      merge changes in ecco-branch back into main trunk
336    - bug fix in find_alpha
337    - more storing in gmredi_calc_tensor.F, kpp_routines.F
338    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
339    - merged some sliced AD support routines
340    
341    checkpoint49
342    merged from ecco-branch:
343    o exf:
344      - Enable initialisation of forcing fields to constant
345        (runtime) values.
346      - in exf_getffields.F
347        Reduce i-/j-loop to interior domain, discarding overlaps.
348        That also fixes wrong TAF-key computations for key_1, key_2
349        with bulf formulae.
350      - exf_init.F modify #ifdef for exf_init_evap
351      - exf_getffieldrec.F, ctrl_getrec.F
352        The following INT-usages are not safe:
353          fldsecs  = int(fldsecs/fldperiod)*fldperiod
354          fldcount = int(fldsecs/fldperiod) + 1
355        and were modified.
356    o autodiff: checkpoint_lev...
357      - updated storing for bulk formulae (some arrays were missing)
358      - added state for seaice package
359      - synchronized with main branch
360    o DIVA:
361      Modif.s in
362      - the_main_loop.F
363      - the_model_main.F
364      and added cost_final_restore.F cost_final_store.F
365      o With these changes, it is possible to fully separate
366        the first forward run to compute the cost function (mdthe_main_loop)
367        and adjoint runs over individual DIVA intervals (adthe_main_loop)
368        into separate model executions.
369        This enables better tuning of DIVA to given queue sizes.
370      o Loss of cost function value in consecutive DIVA runs is
371        fixed by storing to 'costfinal' file.
372      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
373        beginning/end of adjoint integration is accounted for.
374      The current changes apply to TAF-1.4.26.
375      TAF has one remaining bug, requiring one manual change
376      (see MITgcm manual).
377    o cal: synchronized between MAIN and ecco-branch
378    
379    checkpoint48i_post
380    o Changes to restore differentiability of code w.r.t. previous tag
381      (mostly adding new routines to make list and replacing
382      pressure by totPhiHyd).
383    o Updated and merged grdchk package
384      - has both ADM and TLM checks
385      - works for single- and multi-proc.
386      - output cleaned
387      - worked successfully for parallel DIVA
388    o genmake:
389      - Adding -platform=SP4
390      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
391    o Modif. for DIVA:
392      ctrl_unpack should not be called in intermediate DIVA interval.
393      (similar thing would apply for active files such as
394      tbar, sbar, psbar, which should not be reinitialised;
395      only relevant for ecco-branch)
396    
397    checkpoint48h_post
398    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
399    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
400    o Added SEAICE_initialHEFF to pkg/seaice
401    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
402    
403    checkpoint48g_post
404    --- EOS:
405    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
406      store total Potential in totPhyHyd for diagnostics & EOS.
407    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
408    --- Pressure/geopotential gradient:
409    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
410    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
411      ( changes results of global_ocean_pressure )
412    o NLFS + z-coord.: add eta*Rho' contribution.
413    o accurate phiHyd when using interface-W at the middle between 2 centers
414     ( changes results of ideal_2D_oce )
415    o includes r* 2nd term in potential gradient.
416    
417    checkpoint48f_post
418    Merging from release1_p12:
419    o Modifications for using pkg/exf with pkg/seaice
420      - improved description of the various forcing configurations
421      - added basic radiation bulk formulae to pkg/exf
422      - units/sign fix for evap computation in exf_getffields.F
423      - updated verification/global_with_exf/results/output.txt
424    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
425      (SBO) core products, including oceanic mass, center-of-mass,
426      angular, and bottom pressure (see pkg/sbo/README.sbo).
427    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
428      to avoid negative values in shallow regions.
429      - updated verification/natl_box/results/output.txt
430      - updated verification/lab_sea/results/output.txt
431    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
432    o Added useSingleCpuIO option (see PARAMS.h).
433    o Updated useSingleCpuIO option in mdsio_writefield.F to
434      work with multi-field files, e.g., for single-file pickup.
435    o pkg/seaice:
436      - bug fix in growth.F: QNET for no shortwave case
437      - added HeffFile for specifying initial sea-ice thickness
438      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
439    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
440      kpp_transport_t.F, forward_step.F, and the_main_loop.F
441    o pkg/seaice:
442      - adjoint-friendly modifications
443      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
444    
445    checkpoint48e_post
446    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
447    o dynamics: change definition of computational domain & adapt mom_fluxform
448      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
449    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
450        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
451        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
452        global_ocean.90x40x15 global_with_exf global_ocean_pressure
453        inverted_barometer solid-body.cs-32x32x1
454      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
455    
456    checkpoint48d_post
457    o in preparation for r*:
458     a) use pre-computed gradient of hydrostatic potential:
459        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
460     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
461        => affects results of glob_oce_pressure (different truncation error)  
462      update output.txt of ideal_2D_oce & global_ocean_pressure
463    
464    checkpoint48d_pre
465    o in preparation for r*:
466      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
467      pass the 2 comp. of the grad. as arguments to momentum S/R.
468      but for the moment, only used if it does not change the results.
469    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
470    
471    checkpoint48c_post
472    Modifications in treatment of initial flux forcing controls
473    to avoid extra storing of flux fields.
474    
475    checkpoint48c_pre
476    o Added tidal_basin_2d experiment (currently 1D!)
477    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
478    
479    checkpoint48b_post
480    o r* coordinate added in #ifdef NONLIN_FRSURF block.
481     (modification to pressure gradient not yet implemented)
482    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
483      (for U & V) that are used for vertical advection of momentum.
484    
485    checkpoint48a_post
486    o In preparation for r*, use temp. array to compute vertical transport
487       in flux-form momentum pkg. => change results of few test-exp.
488      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
489                        lab_sea, natl_box & plume_on_slope
490    
491    checkpoint48
492    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
493    
494    checkpoint47j_post
495    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
496    o moved adexch from forward_step to addummy_in_stepping
497    o added exch in ctrl_map_...
498    o aveFreq.=0. at end of cost_final to avoid overwrite in
499      reverse checkpointing loop
500    o Yet more changes in gmredi:
501      * adgmredi_calc_tensor
502        avoiding all recomputation of gmredi_slope_limit
503      * adgmredi_x/y/rtransport
504        added flag for excessive storing to avoid recomp. of
505        u/v/rtans, dTdx/y/z
506        -> this is not really necessary and very memory-consuming
507      * adgmredi_slope_psi:
508        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
509      * gmredi_slope_limit
510        re-activated full calculation of taperfct for case 'ac02'
511    o updating verification/ adjoints of carbon, global_ocean.90x40x15
512    
513    checkpoint47i_post
514    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
515    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
516      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
517    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
518    o gmredi: fix few bugs.
519    
520    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
521    This will be a good checkpoint to plug into the ecco-branch.
522    o few modif.'s to get latest version adjointed
523      (mainly kick out code in ini_linear_phisurf)
524    o modif's to run adjoint with exactConserv
525    o case GM_BOLUS_ADVEC should be cleaned
526      S/R gmredi_slope_psi should be cleaned
527    o verification/carbon now has exactConserv=.TRUE.
528    
529    checkpoint47g_post
530    o time-average AIM output: becomes independent from statvars time-average
531      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
532    o After TAF bug fix:
533      Tested adjoint of gmredi package.
534      Tests were done with checkpoint47 rather than with latest
535      checkpoint47f_post since the latter is broken for the adjoint
536      verification/carbon/ contains both ADM and TLM gradient checks.
537    Here they are, before they get changed/lost/stolen.
538    Mostly modif.'s to fix numerical sensitivities.
539    Gradient checks OK for
540    - GM_taper_scheme:
541      * clipping
542      * ac02
543      * linear
544      * glw91
545      * dm95
546      * ldd97
547    - GMREDI_OPTIONS:
548      * GM_VISBECK_VARIABLE_K
549      * GM_NON_UNITY_DIAGONAL
550      * GM_EXTRA_DIAGONAL
551      * GM_BOLUS_ADVEC
552    in conjunction with data.gmredi parameters to be checked in
553    in a few minutes under verification/carbon/code/
554    
555    checkpoint47f_post
556    Merging from release1_p10:
557    o modifications for using pkg/exf with pkg/seaice
558      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
559        and SEAICE_EXTERNAL_FLUXES
560      - pkg/exf CPP options EXF_READ_EVAP and
561        EXF_NO_BULK_COMPUTATIONS
562      - usage examples are Experiments 8 and 9 in
563        verification/lab_sea/README
564      - verification/lab_sea default experiment now uses
565        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
566    
567    checkpoint47e_post
568    o created a tag prior to creating a branch
569    
570    checkpoint47d_post
571    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
572      at the bottom boundary had an erroneous half slip boundary condition
573    o added bottom drag and no slip boundary condition capabilities to
574      oceanic pressure coordinates code
575    o added new verification experiment global_ocean_pressure, this experiment is
576      also described in the tutorial section of the manual
577    checkpoint47d_pre
578    
579    checkpoint47c_post
580    o Added a verification experiment for a global cubed-sphere ocean run
581      -  verification/global_ocean.cubed32x32x30
582      -  uses pkg/therm_seaice and pkg/bulk_forcing
583    
584    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
585    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
586      when using P-coordinate; only implemented for atmospheric config.
587    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
588      NOTES: requires option NONLIN_FRSURF to be "#define".
589    o update advect_xz/results/output.txt (left from checkpoint44g_post)
590    
591    checkpoint47b_post
592    Merging from release1_p9:
593    o pkg/seaice
594      - removed GOTO's and added taf directives
595      - double precision constants to reduce the g77 (Linux)
596        to F77 (SGI) differences reported in release1_p8
597    o tools/genmake
598      - added SGI options
599    o verification/testscript
600      - updated to that of checkpoint47a_post
601    o verification/global_ocean.90x40x15/input/eedata
602      - modified for SGI f77 compatibility
603    o verification/lab_sea
604      - added description of sea-ice model
605      - added missing matlab routines
606      - added test of thermodynamics parallelization
607    
608    checkpoint47a_post
609    o new pkg: aim_v23
610     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
611       for now, keep the same surface forcing as before.
612     - Part-Cell implemented into AIM; check that Heat & Water are conserved
613     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
614     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
615    o add diagnostic of surface correction term in monitor output
616    
617    o bulk_force and therm_seaice
618    - Two packages:  bulk_force (Bulk forcing)
619      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
620    - Earlier integration from Stephaine Dutkiewicz
621      and Patrick Heimbach.
622    - Two ifdef statements for compile time,
623       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
624    
625    checkpoint47
626    differentiable version of checkpoint46n_post
627    o bug fix in quasihydrostaticterms
628    o * "clean" adjoint code (in terms of extensive recomputations)
629        can now be obtained for all GMREDI options (i.e. for
630        - GM_VISBECK_VARIABLE_K
631        - GM_NON_UNITY_DIAGONAL
632        - GM_EXTRA_DIAGONAL
633        - GM_BOLUS_ADVEC )
634      * However, wrong gradient check problem remains unsolved.
635      * New CPP options have been introduced for different
636        tapering schemes
637    o external_fields_load now part of differentiation list
638    o pressure needs multiple storing;
639      would be nice to have store_pressure at beginning or
640      end of forward_step, e.g. by having phiHyd global (5-dim.)
641      (NB: pressure is needed for certain cases in find_rho,
642      which is also invoked through convective_adjustment).
643    o recomputations in find_rho for cases
644     'JMD95'/'UNESCO' or 'MDJWF' are OK.
645    o #define ATMOSPHERIC_LOADING should be differentiable
646    o ini_forcing shifted to begining of initialise_varia
647    o Incorporating QNVS line search routines into MITgcm
648      (this is separate code, and therefore not under pkg)
649      lsopt/, optim/
650    o Updated verification/carbon/
651      - #define GM_VISBECK_VARIABLE_K
652      - GM_taper_scheme    = 'ldd97'    
653    
654    checkpoint46n_post
655    Merging from release1_p8:
656    o verification/natl_box:
657      updating new external_fields_load routine
658    o New package: pkg/seaice
659      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
660      The sea-ice code is based on Hibler (1979-1980).
661      Two sea-ice dynamic solvers, ADI and LSR, are included.
662      In addition to computing prognostic sea-ice variables and diagnosing
663      the forcing/external data fields that drive the ocean model,
664      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
665      The implied surface heat flux is then stored in variable
666      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
667      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
668      non-local transport term.  Because this call precedes model
669      thermodynamics, temperature under sea-ice may not be "exactly" at
670      the freezing point by the time theta is dumped or time-averaged.
671      N.B.: fairly large differences in accuracy occur across
672            different platforms/compilers; comparison between
673            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
674            generated output gives:
675       T           S           U           V
676      C D M    c        m  s        m  s        m  s        m  s
677      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
678      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
679      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
680    
681      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
682    o GAD:
683      - generated new common blocks to account for call of
684        same gad routines with differing traceridentities
685        (needed to modify tracerIdentity indices in GAD.h)
686      - generated separate common blocks for case useCubedSphereExchange
687        (Department of Futurology)
688      - parameter lists to gmredi_?transport: added tracerIdentity
689      - added new key indices to tamc.h
690    o external_fields_load:
691      - added this routine to TAF list
692      - needed to make some common blocks global and additional storing
693        along the same lines as exf package (checkpoint_lev?_directives.h)
694    o exf:
695      updated external forcing package
696      - bug fixes carried over from ecco-branch
697        (missing OBCS_OPTIONS.h in two routines)
698      - enable easy to use "no forcing".
699      - added exf I/O for atmospheric loading
700      - added exf I/O for runoff data
701      - transfered scaling between exf <-> MITgcm to exf namelist
702    o Adding new verification experiment global_with_exf.
703      This verification experiment is almost identical to the
704      global_ocean.90x40x15 experiment, except that it uses
705      the exf (and cal) package instead of the
706      external_fields_load routine (cf README file).
707    
708    checkpoint46m_post
709    o modified testscript to return -- when there are no lines of "%MON" output
710    o added new flag "quasiHydrostatic" for QH mode
711      and new routine quasihydrostaticterms()
712    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
713      New routine: mom_u_coriolis_nh()
714    o fixed sign of non-hydrostatic metric terms in u and v equations.
715      Depend on correct sign of gravitySign.
716    o added work.pc* to .cvsignore in aim directories using ifc
717    o introduced flag for controllin non-hydrostatic metric terms
718    o removed gravitySign from PARM04
719    o switched to g77/ifc from pgf77 in aim experiments
720    
721    checkpoint46l_post
722    o made convective adjustment work with pressure coordinates:
723     - changed the direction of k-loop in convective_adjustment.F for the
724       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
725     - adjusted the reference pressure k-index in convective_adjustment.F
726     - adjusted the convection condition in convect.F (in analogy to
727       calc_ivdc.F)
728     - convective_adjustment no longer computes anything on the halos
729     - removed the warnings about negative salinity from find_rho.F and
730       find_alpha.F; instead the new routine look_for_neg_salinity, called
731       at the beginning of find_rho, find_alpha, and find_beta, does a
732       check of the entire slice, if CPP-option
733       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
734    checkpoint46l_pre
735    
736    checkpoint46k_post
737    o fixed the verification/global_ocean.90x40x15 experiment:
738     - new bathymetry (the world according to A., JMC, and M.)
739     - new initial fields and forcing fields (*.bin files)
740     - new POLY3.COEFFS (for the next release one should switch to a full
741       equation of state: JMD95P or MDJWF)
742     - fixed several errors and redundancies in the data file
743     - experiment uses looped cells
744     - added matlab directory with diagnostic scripts for plotting of output
745    
746    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
747     - read AIM physics parameters from a file (data.aimphys)
748     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
749    
750    checkpoint46j_post
751    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
752    o move wVel computation at the end of the time step, in S/R integr_continuity
753    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
754    o update timeave pkg for wVel diagnostic.
755    checkpoint46j_pre
756    
757    checkpoint46i_post
758    o Clean up AIM package (and keep the results unchanged):
759      include CPP_OPTION and use IMPLICT NONE in all routines ;
760      declare all the variables _RL ; use _d 0 for all numerical constants.
761      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
762    
763    checkpoint46h_post
764    o cleaned up the use of rhoNil and rhoConst.
765      - rhoNil should only appear in the LINEAR equation of state, everywhere
766        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
767        and the dynamical equations are all divided by rhoConst
768    o introduced new parameter rhoConstFresh, a reference density of fresh
769      water, to remove the fresh water flux's dependence on rhoNil. The default
770      value is 999.8 kg/m^3
771    o cleanup up external_forcing.F and external_forcing_surf.F
772      - can now be used by both OCEANIC and OCEANICP
773    checkpoint46h_pre
774    
775     Added code to convert surface volume flux (fresh water) into
776     a mass flux when using P coordinates in the ocean (OCEANICP).
777     Note: It assumes you have set rho0=rhoConst=density of fresh water.
778    
779    checkpoint46g_post
780    o Include a new diagnostic variable phiHydLow for the ocean model
781      - in z-coordinates, it is the bottom pressure anomaly
782      - in p-coordinates, it is the sea surface elevation
783      - in both cases, these variable have global drift, reflecting the mass
784        drift in z-coordinates and the volume drift in p-coordinates
785      - included time averaging for phiHydLow, be aware of the drift!
786    o depth-dependent computation of Bo_surf for pressure coordinates
787      in the ocean (buoyancyRelation='OCEANICP')
788      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
789        Theta, Salinity, and Pressure in the parameter list. This routine is
790        presently contained in find_rho.F. This routine does not give the
791        correct density for 'POLY3', which would be a z-dependent reference
792        density.
793    o cleaned up find_rho
794      - removed obsolete 'eqn' from the parameter list.
795    o added two new verification experiments: gop and goz
796      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
797    checkpoint46g_pre
798    
799    checkpoint46f_post
800    o Enable tangent linear (forward mode) gradient checks:
801      - extended active file handling to g_... files
802      - added TANGENT_SIMULATION to theSimulationMode
803      - extended grdchk package accordingly
804    o added tangent linear setup in verification/carbon/code_ftl
805    o added adjoint setup in verification/front_relax/code_ad
806    
807    checkpoint46e_post
808    o Added new equation of state -> MDJWF
809      - EOS of McDougall et al., 2002, JAOT, submitted
810      - caveat: the equation of state is only valid for a smaller (more
811        realistic?) range of values than JMD95P/Z and UNESCO
812      - added masks to the calculation of pressure in store_pressure
813      - added more check values for density in check_eos (ini_eos.F), some of
814        the old check values are out of the range of the MDJWF-eos, so don't
815        expect perfect matches for those
816    checkpoint46e_pre
817    
818    checkpoint46d_post
819    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
820      'OCEANICP', also initialised field pressure correctly in ini_eos in the
821      case of pressure coordinates. eosType='JMD95Z' in
822      combination with buoyancyRelation='OCEANICP' now causes an error.
823    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
824      in find_alpha/beta.
825    checkpoint46d_pre
826    
827    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
828      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
829    
830    checkpoint46c_post
831    o Changes necessary for ocean in p-coordinates
832     -  Added new buoyancy relation = 'OCEANICP'
833     -  Added new parameters = gravitySign (this used to be contained inside
834        the factor dRdZ which I added when we first switched to R coordinates).
835     X GM/Redi is not compatible (yet)
836     X bottom drag and no-slip need to be debugged.
837    checkpoint46c_pre
838    
839    checkpoint46b_post
840    o Added new equation of state -> JMD95Z and JMD95P
841      - EOS of Jackett and McDougall, 1995, JAOT
842      - moved all EOS parameters into EOS.h
843      - new routines ini_eos.F, store_pressure.F
844    o Added UNESCO EOS, but not recommended because it requires
845      in-situ temperature (see JMD95)
846    o Modified formatting for knudsen2.f in utils/knudsen2 and added
847      unesco.f to be used with POLY3
848    checkpoint46b_pre
849    
850    checkpoint46a_post
851    o Added (atmospheric) pressure loading
852      - new field in FFIELDS.h, etc...
853      - new cpp flag ATMOSPHERIC_LOADING
854    o Changed hFacC to _hFacC in calc_phi_hyd.F
855    o Added SHORTWAVE_HEATING to some files for consistency
856    checkpoint46a_pre
857    
858    checkpoint46
859    further merges from release1_p5
860    o new ctrl package
861      - adopted from ECCO environment to enable optimization
862      - added Eliassen Palm fluxes to controls
863    o added Eliassen Palm flux controls to gradient check package
864    o cost package
865      - Compatible with new ctrl package
866      - added Eliassen Palm cost hooks
867      - modif's of existing cost functions
868    o Adjoint-related bug fixes in kpp:
869      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
870      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
871    o autodiff package
872      - flow directives:
873        + new for S/R do_the_model_io
874        + enhanced for S/R checkpoint
875        + new gmredi.flow
876      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
877        disable adcommon.h/g_common.h by default.
878      - fixed problem for adjoint of global_max
879    o modified verification/carbon/
880    o New setup for adjoint of global_ocean
881    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
882    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
883    o incorporated hooks for sponge layer code (external_forcing.F)
884    
885    checkpoint45d_post
886    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
887    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
888      (affects plume_on_slope "cg2d" output)
889    o add new parameter deltaTfreesurf for free-surface time stepping
890    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
891    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
892    o change phiMin in exp1 (to agree with documentation)
893    o add new flags:
894     - T,S forcing inside/outside Adams-Bashforth
895     - turn off temp,salt advection and/or forcing
896     - for each tracer, define internal flag for multiDimAdvection & A-B
897    o monitor: change definition of KE to check conservation of Energy
898    
899    checkpoint45c_post
900    o Removed f90 comments ("!")
901    o Modified initialisations to enable exf package for MITgcm
902      (without invoking ECCO_PACKAGE).
903    o modifications to gradient check package (Martin Losch)
904      - enable centered differences
905      - modified format of standard output
906    
907    checkpoint45b_post
908    o cleaned exchange calls in cg2d
909    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
910    o included CPP option SINGLE_LAYER_MODE in thermodynamics
911      to configure barotropic setup (Martin Losch)
912    o moved some initialisations within bi,bj loop in dynamics
913      (TAF flow dependency)
914    o in initialise_varia, moved call packages_init_variables
915      before convective_adjustment_init
916      (corresponding adjustment of TAF tape initialisation).
917    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
918    
919    checkpoint45a_post
920    o compute Rho over the whole domain (extend iMin,jMin indices)
921    o specific exchange for X-slice domain (case Ny=1)
922    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
923    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
924    
925    checkpoint44h_post = checkpoint45
926    o Fix to restore differentiability:
927      place at which packages_init_variables is called in
928      initialise_varia is crucial for reverse control flow.
929    o modifications in GMRedi to enable stable adjoint
930      (corresponding modif's in thermodynamics, dynamics)
931    o added missing hook for sponge layer code in external_forcing
932    o modified test cost functions
933    o storing in gad_advection (plus removal of write(0,*)!
934    o missing headers TR1.h added in convective_adjustment routines
935    o errorMessageUnit set non-equal zero in eeboot
936      (conflict on some platforms, e.g. IBM SP3)
937    o modified carbon verif.
938    
939    checkpoint44h_pre
940    o vertical grid option: allow to put the Interface at the middle between
941      2 cell-centers ; replace delZ in pkg/kpp by drF.
942    o GM Advective form: Tracers are advected using the residual transport (=
943      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
944    
945    checkpoint44g_post
946    o fix surface correction term in multiDimAdvection (affects plume_on_slope
947      results) ; ifdef missing in thermodynamics.F
948    
949    checkpoint44f_pre,checkpoint44f_post
950    o added PTRACERS package
951      This allows an arbitrary number of passive tracers to be integrated
952      forward simultaneously with the dynamicaly model.
953      + Implemented so far:
954        - basic forward algorithm (time-stepping, advection, diffusion, convection)
955        - I/O and checkpointing
956        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
957      + Not implemented so far:
958        - KPP
959        - OBCS
960      + No specific example supplied (yet) but global_ocean.90x40x15 has the
961        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
962        line in data.pkg.
963      + This package is disabled by default since it increases storage.
964    
965    
966    o testscript: added -cleanup option
967    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
968                 b) enable to filter 2D fields.
969    
970    checkpoint44e_pre,post
971    o re-wrote convective adjustment to use pre-calculated weights
972      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
973      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
974      Original calls to convect() still in place.
975    
976    chkpt44d_pre,post
977    o added missing EXCLUDE_MONITOR flags
978    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
979      (incompatible typ in MIN/MAX expressions caused problems
980      on IBM SP3)
981    o in genmake added variable MAKEDEPEND
982      plus resetting for case SunOS
983    o added timer_stats.c routine for IBM SP3
984    o removed variables in dynamics
985    !!! I forgot to create tag chkpt44d_pre !!!
986    !!! But chkpt44d_pre = chkpt44c_post    !!!
987    
988    o real fresh water flux implemented with non-linear free-surface.
989    
990    chkpt44c_pre,post
991    o few fix (mask in shap_s2, EmPmR in external_field_load,
992      USE_NATURAL_BCS in solve_for_P);
993    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
994    
995    checkpoint44b_pre/_post
996    o merge of relevant stuff from the ecco-branch:
997      - genmake: removed $S64 overwrite for case SunOS
998      - pkg/exf: update and corrections for field swapping and obcs
999      - pkg/ecco: parameter lists for the_model_main, the_main_loop
1000                  harmonized between ECCO and MITgcm
1001      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
1002                      updated checkpointing_lev... lists for obcs
1003      - model/src: minor changes in forward_step, plot_field
1004                   added directive for divided adjoint in the_main_loop
1005      - pkg/mdsio: added mdsio_gl_slice
1006    
1007    o check parameters & config (chkpt44a_pre,post)
1008    o OBC and NonLin_FrSurf.
1009    
1010    checkpoint44
1011    o fix bug in mom_vi_del2uv
1012    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
1013    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
1014    o update AIM experiments (NCEP input files)
1015    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
1016    o added some stuff for AD
1017    
1018    checkpoint43
1019    o added two new advection tests
1020    o added global 4x4 degree ocean test
1021    o added test of H&S94 with free surface on cube
1022    o some final mods for gradient check, adjoint,...
1023    
1024    checkpoint42
1025      Fixed AD-related problems:
1026    o Store directives up-to-date with re-arranged Adams-Bashforth
1027      (mainly thermodynamics.F)
1028    o New store directives for multi-dim. advection schemes
1029      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
1030      * new common block and key passkey
1031      (mainly gad_advection.F)
1032    o Modified store directives for split of dynamics/thermodynamics
1033      for the case ALLOW_KPP
1034    o Cleaned argument list for timestep_tracer.F
1035    
1036    checkpoint41
1037    o re-formatted/added comments in prologues of key subroutines
1038      to work with protex
1039    
1040    checkpoint40
1041    o moved calc_gs, calc_gt and calc_tr1 back to model/src
1042    o added FLT (floats) package from Arne along with demo. experiment
1043    o re-arranged Adams-Bashforth scheme for tracers to allow easier
1044      implementation of forward-in-time forcing terms
1045    o more mods for non-linear free-surface including new variable
1046    o modified multi-dim method to work on cube
1047    o bug fix in KPP (from DM)
1048    
1049    checkpoint40pre9
1050    o added DST advection schemes
1051    o fix MPI bug on SGI's
1052    o modifications for non-linear free-surface
1053    o fixed conditionals for fixed flow/passive tracer only mode
1054    o added tension/strain form of stress tensor
1055    o changes to commenting of arguments for TAF/TAMC
1056    o added/updated many matlab scripts
1057    o added multi-dimensional advection method for tracers
1058      
1059    checkpoint40pre8
1060    o new package rw/
1061      Added method for dumping intermediate local arrays:
1062      mdsio_writetile - same as mdsio_writefield except works from inside
1063                        bi,bj loop
1064      mdsio_writelocal - same as mdsio_writetile except works for local
1065                         arrays
1066      write_local_r? - higher-level wrapper for mdsio_writelocal
1067      Controlled by diagFreq. Defaults to zero (ie. no dumps)
1068      Example given at end of mom_vecinv.F that dumps some local arrays.
1069    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
1070      control flux-form versus vector invariant code.
1071      Switch is runtime flag vectorInvariantMomentum (defaults to false)
1072      or genmake -DISABLE ...
1073    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
1074      (additional storing is now needed for case vecinv;
1075      currently nothing implemented to switch this storing off
1076      in case fluxform is used since no CPP flag available).
1077    
1078    checkpoint40pre7
1079    o bug fix in dynamics.F
1080      calc_viscosity called before k=1,Nr loop.
1081    o added some #ifdef's ALLOW_PASSIVE_TRACER
1082    o cleaned initialisations in ctrl_map_ini
1083      related to TAF
1084    
1085    checkpoint40pre6
1086    o split dynamics into thermodynamics & dynamics
1087    o corresponding split of calc_diffusivity into
1088      calc_diffusivity, calc_viscosity
1089      (kpp_calc_diff, kpp_calc_visc).
1090    o Added diffkr, kapgm to control variables
1091    o bug fix in gmredi_slope_limit for ldd97
1092    
1093    checkpoint40pre5
1094    o proper initialization of Adams-Bashforth time stepping
1095      + uses forward step for very first step of model (iter=0)
1096    o re-generated *all* output since almost all output is modified by this
1097      change (sorry but we've been putting this one off for about 2 years)
1098      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
1099        *not* regenerated since they are already out of date and I don't
1100        want to create the impression that they are suddenly working.
1101    o removed KAP stuff for DEC's
1102    o modified/added many .cvsignore files in */code and */input
1103    o added new expt "solid-body.cs-32x32x1"
1104      + this uses an alternative form of ini_curvilinear_grid.F which
1105        is not necessarily any better than the current one...
1106    
1107    checkpoint40pre4
1108    o added re-initialisations of utrans,vtrans,rtrans in
1109      calc_common_factors which are crucial for TAF.
1110    o extended iMin,jMin range for calc_common_factors,
1111      calc_diffusivity
1112    o added option ALLOW_PASSIVE_TRACER
1113    o a few minor updates and fixes
1114    
1115    checkpoint40pre3
1116    o created calc_gtr1.F for gad package
1117    o split the_main_loop and re-introduced forward_step
1118    o some recomputations of nIter0 for TAMC
1119    
1120    checkpoint40pre2
1121    o Updated to latest branch of AJA, JMC
1122    o Added gradient check package
1123    o Added routines for passive tracer handling
1124    o Added carbon sequestration sensitivity experiment
1125    
1126    checkpoint39
1127     o Modifications and fixes to support TAMC
1128       (mainly missing or wrong directives)
1129     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1130       in addummy_in_stepping
1131     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1132     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1133     o Included following packages:
1134       cal: calendar
1135       exf: external forcing
1136       ecco: essential routines to control use of cal, exf
1137             (NB: this is not the full ECCO environment)
1138     o disabled some packages by default in genmake
1139    
1140    checkpoint38
1141     o see notes_c37_adj.txt
1142     o corrected wrong layer index in external_forcing_t
1143     o replaced the_main_loop/forward_step by the_main_loop
1144     o removed forceoutput from write_state
1145       (replaced criteria for initial/final state)
1146     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1147    
1148    checkpoint37
1149     o mdsio.F routine split and packaged in pkg/mdsio
1150       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1151        used unless genmake -disable=mdsio)
1152     o allow a more precise surface-geopotential gradient for the atmosphere
1153       taking into account the change in space of Alpha (=1/rho) at the surface.
1154     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1155       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1156     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1157       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1158       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1159     o Time-Average diagnostics defined as a pseudo package "timeave".
1160     o pickup files : old pickup (before c35) did not work with new code (c35
1161       and after) unless activating 2 commented lines in initialise-varia.
1162     o Non-Hydrostatic pickup file Pb fixed.
1163     o bug with Rigid-lid version (since c35) fixed.  
1164    
1165    checkpoint36
1166     o implement Crank-Nickelson barotropic time-stepping
1167     o recover Time-Average diagnostics
1168     o fix Pb in checkpoint (PR#19)
1169     o AIM become a standard package ; clean unused CPP_kees
1170    
1171    checkpoint35
1172     o subtantial rewrite of dynamics.f
1173     o allows staggered time-stepping
1174     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1175     o added bottom drag (linear + quadratic)
1176    
1177    checkpoint34
1178     o Modified exchange routines for correct reverse simulation.
1179     o Added verification output to comply with bug fix in impldiff.F
1180       as of c33 (exp2, natl_box).
1181     o Corrected store directives in dynamics.F
1182     o Corrected array boundaries in impldiff.F
1183     o Corrected array dimensions in gmredi.
1184       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1185     o Added routine GLOBAL_SUM_INT to global_sum.F
1186     o Added mdsio_gl.F for ECCO purposes.
1187    
1188    checkpoint33
1189     o Fixed bug in lower BC in impldiff.F
1190     o Fixed confusion about units of forcing arrays in FFIELDS.h
1191       namely Fu,Fv,Qnet,Qsw,EmPmR:
1192       - Removed verification/natl_box/code/external_fields_scale.F
1193         (did not differ from that in model/src)
1194       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1195         (see FFIELDS.h for description)
1196       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1197         kpp_calc.F and kpp_transport_t.F
1198       - Removed model/src/external_fields_scale.F and calls to it
1199       - verification/natl_box uses flux data with "atmospheric" sign so
1200         a special version of external_fields_load.F is used to
1201         change the data as it's read in. This way, the arrays
1202         have the right units and signs at all times tha a user could
1203         possibly use them.
1204     o Corrected genmake to delete a temporary file during configuration
1205    
1206    checkpoint32
1207     o Scaling of forcing fields moved from external_forcing.F to
1208       external_fields_scale.F, called directly after loading fields.
1209     o Surface relaxation terms added to surface tendency fields in
1210       extra subroutine.
1211     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1212       fields.
1213     o Changes in GMRedi to comply with packaging structure.
1214     o Modifications and bug fixes in KPP package.
1215     o Verification experiment for KPP added (verification/nat_box/)
1216    
1217    checkpoint31
1218     o Packages interface brought in line with defined standard
1219       -> new routines packages_...F
1220       -> changes in initialise_fixed.F, initialise_varia.F
1221       -> enables initialisation interface for ECCO package
1222     o Rescaling of external forcing fields immediately after read
1223       (removed from external_forcing.F)
1224       -> new: surface_fields_scale.F
1225       -> affects ini_foorcing.F, external_fields_load.F
1226     o Computation of surface tendencies before tendency updates.
1227       -> new: external_forcing_surf.F
1228     o Change of variable names useGMRedi, useKPP, useECCO
1229     o Further changes in dynamics.F, impldiff.F for TAMC
1230     o Tested for experiments 0, 2, 4.
1231       - not yet tested for GMRedi.
1232       - not yet tested for KPP.
1233    
1234    checkpoint30
1235     o Updates for OBCs
1236     o New experiment for test OBCs (internal_wave)
1237     o New output.txt in verification/exp4/results/
1238     o Updates for KPP: calculation of viscosity corrected, new variables
1239       kpp_dumpFreq and kpp_taveFreq
1240     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1241       and entry for T90 in genmake
1242    
1243    checkpoint29
1244     o packaged KPP and GM/Redi
1245    
1246    checkpoint28
1247     o Corrected initialization of hFacMin for difference vertical coordinates
1248     o Modified calculation of partial cell thickness to more robust algorithm
1249     o config_summary.F: replaced write_1D_... by write_0D_...
1250       read_write.F: added subroutines write_0D_...
1251     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1252       included some initialisations required for TAMC.
1253     o routine calc_isoslopes: modified sqrt computation to make it
1254       differentiable for zero argument.
1255     o routines dynamics, impldiff:
1256       included store directives and tape key computations required for TAMC.
1257     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1258    
1259    checkpoint27
1260     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1261       formulation works properly with variable resolution.
1262     o restructured the calling tree between the_model_main() and dynamics()
1263     o split initialise() into initialise_fixed() and initialise_varia()
1264     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1265       in new routine ini_psurf()
1266    
1267    checkpoint26
1268     o moved some #ifdef in optional routines to encompass everything
1269       except the argument declarations. This was using up some memory.
1270     o fixed macros like _ADT to work with both versions of Linux cpp
1271     o cleaned up some unused and uninitialized variables
1272       (helps when debugging with strict compile options)
1273     o split up CPP_EEOPTIONS.h into options and macros
1274       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1275     o patch for 2 processor JAM mode
1276    
1277    checkpoint25
1278     o updates for OBCs and NH
1279     o dramatically reduced memory usage
1280     o added "JAM" routines for use on Artic network
1281     o parameterization of convection by implicit vertical diffusion
1282     o added a diagnostic of convective index
1283     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1284       (this is was partly for OBCs and NH but also in anticipation of
1285        an explicit free-surface option)
1286     o initial state input files for U and V
1287    
1288    checkpoint24
1289     o Removed some spurious "REAL"s
1290     o Updated KPP to latest version from JPL
1291     o Added a COS(latitude) in horizontal viscosity
1292    
1293    checkpoint23
1294     o Added del^4 diffusion for salt and temperature
1295     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1296    
1297    checkpoint22
1298     o Made many small changes: implicit none, format(i5), etc...
1299     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1300    
1301    checkpoint21
1302     o Introduced new I/O package that supports direct-access records (mdsio.F)
1303     o Split-up mid-level I/O routines
1304     o Updated input data for experiments 0,1,2,4 and 5
1305     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1306    
1307    checkpoint20
1308     o Tidied up open-boundaries some more
1309     o Added non-hydrostatic code
1310     o Fixed some input data
1311     o Modified MPI start-up to work in "coupled" context.
1312    
1313    checkpoint19
1314     o Tidied up directory structure for verification experiments.
1315     o Added new code for open boundaries.
1316     o Corrected advective terms near boundaries.
1317     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1318     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1319     o Split default parameters out of ini_parms.F into set_defaults.F.
1320    
1321    checkpoint18
1322     o Further changes for optional code generation with
1323       CPP - ugh!
1324    
1325    checkpoint17
1326     o Beginning to incorporating modularity
1327       for supporting atmos. and ocean configs.
1328     o Small changes for TAMC complinace
1329     o New ultra simple test case. Barotropic box
1330       configuration "exp0".
1331    
1332    checkpoint16
1333     o Minor changes to exchange routines to support
1334       accumulation in reverse mode. Adjoint of an
1335       assignment is an addition.
1336     o Changes to support compilation by TAMC (LR(1)
1337       syntax) and by g77 under Linux ( 72 character
1338       limit ).
1339    
1340    checkpoint15
1341     Rewrote exchange routines to allow
1342     o General tile <-> tile connectivity.
1343     o TAMC reverse mode flag ( is this really needed? )
1344     o Variable width overlap and exchange region widths.
1345     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1346       shmput/shmget, VIA, SYSV shmem and every other cool
1347       communication method.
1348    
1349    checkpoint14
1350     Consistent isomorphism chages made. These allow dynamical core
1351     to support both pressure and meters as a vertical coordinate.
1352    
1353    checkpoint13
1354     Release which corrects global_max problem and a couple
1355     of KGM time-averaging diagnostic errors. Also contains
1356     a double-gyre experiment setup as well as the baseline
1357     4 degree global template. The double gyre template is
1358     organised to allow it to be applied automatically to
1359     the baseline configuration.
1360    
1361    branch-point-rdot
1362     A few tidy-ups have been made bt the real point of this
1363     check-point (excuse the pun) is to allow a branch to be
1364     made for the purposes of adding the rDot alterations.
1365     I don't want to commit the rDot to the main-trunk until
1366     we've actually tested it...
1367    
1368    checkpoint12
1369     Tidy up and added generic genmake script (formerly
1370     configure script).
1371     Released to testers.
1372    
1373  checkpoint11  checkpoint11
1374   Re-arranged initialise() and introduced ini_vertical_grid()   Re-arranged initialise() and introduced ini_vertical_grid()
1375   and ini_masks_etc().   and ini_masks_etc().

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