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revision 1.4 by cnh, Mon Jun 8 22:38:51 1998 UTC revision 1.185 by heimbach, Fri Oct 10 23:04:46 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint51j_post
7    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
8    o adjusted some flow directives (dynamics, thermodynamics)
9    o added cubed-sphere case to test cost function
10    o heckpoint_lev?_directives.h now include
11      pkg-specific directives, whenever those are enabled.
12    o Moving pkg-specific flow directives to corresponding pkg
13      Moving pkg-specific differentiation list to corresponding pkg
14      Moving pkg-specific checkpoint-lev storing to corresponding pkg
15      ---> conventions are
16           - pkg_ad.flow
17           - pkg_ad_diff.list
18           - pkg_ad_check_lev?_dir.h
19    
20    checkpoint51i_post
21    o merge of the branch-genmake2
22      - knowingly breaks the older genmake
23      - automatic generation of all ALLOW_${PKG_NAME} defines
24      - new testreport supersedes older testscript
25    o large number of package inclusion and header cleanups
26    checkpoint51i_pre
27    
28    o new output for adjoin of global ocean vector invariant
29    o fix for checkpoint of thermodynamic seaice and bulk_force
30    o Steph gchem various cleanups
31    
32    checkpoint 51h_pre
33    o fixed some single quotes
34    o modify gchem pkg to be more versatile
35    o modifications to clean up dic pkg
36    o add pkg/cfc
37    
38    checkpoint51g_post
39    o provide links for ARPACK and ADM*TLM
40    o start removing verification/vero/
41    o update AD-related stuff
42      (in particular some IF-statements in model/src/ routines)
43    o adding to verification/global_ocean.90x40x15/ adjoint of
44      vector invariant setup
45    
46    checkpoint51f_post
47    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
48    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
49      of tracer Green's fucntions for ocean inversion project.
50    
51    checkpoint51f_pre
52    o Added on-the-fly spatial interpolation capability
53        "USE_EXF_INTERPOLATION" to pkg/exf.
54      - This is a temporary Cartesian-grid hack until
55        the super-duper ESMF coupler becomes available.
56      - See verification/global_with_exf/README for usage example.
57      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
58        flags and modified pkg/seaice accordingly.
59    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
60        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
61        non-local transport term.
62    
63    checkpoint51e_post
64    o pkg/mom_vecinv:
65      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
66      - add time-ave diagnostic of vorticity advection.
67    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
68    o atmospheric geopotential: - include water vapor effect;
69                                - use p^kappa in p* scaling.
70    o land pkg: read initial state from files.
71    o AIM : add stratospheric drag in the upper level
72    
73    checkpoint51d_post
74    o change function ILNBLNK (=> last non-blank char.) to return zero
75      (instead of the string length) when the string. char is empty
76    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
77    o modif's to restore TAMC compatibility
78      - avoid "_d" constructs in PARAMETER declarations
79      - avoid interrupting lines by comment lines
80    o Use cluster local disks for purely local I/O
81      vs. globally visible disks needed for ctrl stuff
82      (merged from ecco-branch)
83      - new active_file_loc... and mdsio_..._loc routines
84      - affected packages: autodiff, ctrl, grdchk, mdsio
85    
86    checkpoint51c_post
87    o introducing integer flag debugLevel
88      - debLevZero: suppress all output
89      - debLevA: standard
90      - debLevB: equivalent to current debugMode=.TRUE.
91    o introducing pathname variable mdsioLocalDir for mdsio
92      that can be specified at runtime
93      (relevant for cluster I/O to local disk)
94    `
95    >>>checkpoint51b_post
96    adjoint of ptracers
97    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
98    o extended state in checkpoint_lev?, etc.
99    o alternative ctrl/cost with tr1 or ptracer
100    o new comlev1_bibj_ptracers
101    o new ptracers.flow
102    o made ptracers_forcing same as external_forcing_s
103    o added verification for adjoint with ptracers
104      - adm. grdchk fail so far
105      - tlm. grdchk OK
106      - checked tapelev/comlev recomputations: OK
107    <<<checkpoint51b_pre
108    
109    checkpoint51a_post
110    o added code for biogeochemistry package
111      - new pkgs: dic, gchem
112      - new subroutine in ptracers
113    o modify code for biogeo packages
114      - in model/src and pkg/ptracers
115    
116    checkpoint51
117    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
118      - autodiff, ctrl, exf, grdchk, seaice
119      kept separate packages
120      - cost, ecco, obcs
121    o updating verification/internal_wave, verification/lab_sea
122      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
123    
124    checkpoint50i_post
125    o Preparing next differentiable checkpoint and sync
126      of MAIN vs. ecco-branch
127      - 1st step: this one is differentiable
128      - 2nd step: next(! not this) checkpoint will have updated packages
129                  from ecco-branch)
130    
131    checkpoint50h_post
132    o new package "land": provide surface BC for AIM.
133    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
134    o AIM: use true log-P extrapolation for near surface temp (= as in
135        F.Molteni paper) ; update aim.5l_cs output.
136    o New variable in PARM03 for more flexible pickups
137    o somewhat cleaned package initialisation sequence for
138      ctrl/ cost/ ecco/ in packages_... routines
139    
140    checkpoint50g_post
141    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
142      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
143      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
144        made the default because of faster convergence than ADI
145    
146    checkpoint50f_post
147    o exf totally restructured
148      - replaced all exf_set_ routines by one generic exf_set_gen.F
149        and made sure it's still differentiable
150      - split exf_getffields.F into new exf_bulkformulae.F
151      - exf_inscal_/exf_outscal_ suffixes consistent with field names
152      - updated adjoint/makefile and relevant verif. accordingly
153    
154    checkpoint50f_pre
155     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
156          + change Evap over land. (update aim.5l_cs output)
157     o added missing .cvsignores and made uniform across expts
158     o changed configuration of tidal_basin_2d expt
159     o added pkg/debug functions for tracing code in fatal crashes
160     o tidied pkg/monitor to use MONITOR_OPTIONS.h
161     o new fn in pkg/monitor to stop model if solution grows too big
162     o removed lots of single quotes from comments
163    
164    checkpoint50e_post
165    o make KPP work with PTRACERS
166     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
167       nearly a copy of kpp_transport_s
168     - there is no analogue to SurfaceTendencyS, so I have to use
169       gPtr(of the surface layer) instead
170    o add a new platform SunFire+mpi (SunFire 15000) to genmake
171    checkpoint50e_pre
172    
173    checkpoint50d_post
174    o change kpp output from multiple-record state files to single-record state
175      files analogous to write_state.F
176    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
177      analogous to the cg2d-related output.
178    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
179      so that writing to internal file fn (with length 512) fails.
180    checkpoint50d_pre
181    
182    checkpoint50c_post
183    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
184    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
185    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
186    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
187    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
188    
189    checkpoint50c_pre
190    Merging from release1_p13:
191    o bug fix for pkg/seaice dynamic solver
192    o Added SEAICE_initialHEFF to pkg/seaice
193    
194    checkpoint50b_post
195    o store u*,v* in gU,V instead of in guNm1,gvNm1
196    o in order to put the momForcing out of the Adams-Bashforth:
197      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
198      to timestep.F
199    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
200    o re-generate output for highly sensitive test-exp:
201       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
202    
203    checkpoint50b_pre
204    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
205    o corrected CPP option mismatch in exf_Bulk... functions for case
206      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
207    
208    checkpoint50a_post
209    o Bug fix for merging between c50 and KPP.
210      ikey was passed from thermodynamics to kpp_calc via
211      common block rather than being recomputed in kpp_calc,
212      in contradiction with new key itdkey.
213      New key ikppkey created, and tamc.h headers updated.
214    
215    checkpoint50
216    - 2nd step of merge with ecco-branch:
217      merge changes in ecco-branch back into main trunk
218    - bug fix in find_alpha
219    - more storing in gmredi_calc_tensor.F, kpp_routines.F
220    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
221    - merged some sliced AD support routines
222    
223    checkpoint49
224    merged from ecco-branch:
225    o exf:
226      - Enable initialisation of forcing fields to constant
227        (runtime) values.
228      - in exf_getffields.F
229        Reduce i-/j-loop to interior domain, discarding overlaps.
230        That also fixes wrong TAF-key computations for key_1, key_2
231        with bulf formulae.
232      - exf_init.F modify #ifdef for exf_init_evap
233      - exf_getffieldrec.F, ctrl_getrec.F
234        The following INT-usages are not safe:
235          fldsecs  = int(fldsecs/fldperiod)*fldperiod
236          fldcount = int(fldsecs/fldperiod) + 1
237        and were modified.
238    o autodiff: checkpoint_lev...
239      - updated storing for bulk formulae (some arrays were missing)
240      - added state for seaice package
241      - synchronized with main branch
242    o DIVA:
243      Modif.s in
244      - the_main_loop.F
245      - the_model_main.F
246      and added cost_final_restore.F cost_final_store.F
247      o With these changes, it is possible to fully separate
248        the first forward run to compute the cost function (mdthe_main_loop)
249        and adjoint runs over individual DIVA intervals (adthe_main_loop)
250        into separate model executions.
251        This enables better tuning of DIVA to given queue sizes.
252      o Loss of cost function value in consecutive DIVA runs is
253        fixed by storing to 'costfinal' file.
254      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
255        beginning/end of adjoint integration is accounted for.
256      The current changes apply to TAF-1.4.26.
257      TAF has one remaining bug, requiring one manual change
258      (see MITgcm manual).
259    o cal: synchronized between MAIN and ecco-branch
260    
261    checkpoint48i_post
262    o Changes to restore differentiability of code w.r.t. previous tag
263      (mostly adding new routines to make list and replacing
264      pressure by totPhiHyd).
265    o Updated and merged grdchk package
266      - has both ADM and TLM checks
267      - works for single- and multi-proc.
268      - output cleaned
269      - worked successfully for parallel DIVA
270    o genmake:
271      - Adding -platform=SP4
272      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
273    o Modif. for DIVA:
274      ctrl_unpack should not be called in intermediate DIVA interval.
275      (similar thing would apply for active files such as
276      tbar, sbar, psbar, which should not be reinitialised;
277      only relevant for ecco-branch)
278    
279    checkpoint48h_post
280    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
281    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
282    o Added SEAICE_initialHEFF to pkg/seaice
283    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
284    
285    checkpoint48g_post
286    --- EOS:
287    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
288      store total Potential in totPhyHyd for diagnostics & EOS.
289    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
290    --- Pressure/geopotential gradient:
291    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
292    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
293      ( changes results of global_ocean_pressure )
294    o NLFS + z-coord.: add eta*Rho' contribution.
295    o accurate phiHyd when using interface-W at the middle between 2 centers
296     ( changes results of ideal_2D_oce )
297    o includes r* 2nd term in potential gradient.
298    
299    checkpoint48f_post
300    Merging from release1_p12:
301    o Modifications for using pkg/exf with pkg/seaice
302      - improved description of the various forcing configurations
303      - added basic radiation bulk formulae to pkg/exf
304      - units/sign fix for evap computation in exf_getffields.F
305      - updated verification/global_with_exf/results/output.txt
306    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
307      (SBO) core products, including oceanic mass, center-of-mass,
308      angular, and bottom pressure (see pkg/sbo/README.sbo).
309    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
310      to avoid negative values in shallow regions.
311      - updated verification/natl_box/results/output.txt
312      - updated verification/lab_sea/results/output.txt
313    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
314    o Added useSingleCpuIO option (see PARAMS.h).
315    o Updated useSingleCpuIO option in mdsio_writefield.F to
316      work with multi-field files, e.g., for single-file pickup.
317    o pkg/seaice:
318      - bug fix in growth.F: QNET for no shortwave case
319      - added HeffFile for specifying initial sea-ice thickness
320      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
321    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
322      kpp_transport_t.F, forward_step.F, and the_main_loop.F
323    o pkg/seaice:
324      - adjoint-friendly modifications
325      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
326    
327    checkpoint48e_post
328    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
329    o dynamics: change definition of computational domain & adapt mom_fluxform
330      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
331    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
332        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
333        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
334        global_ocean.90x40x15 global_with_exf global_ocean_pressure
335        inverted_barometer solid-body.cs-32x32x1
336      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
337    
338    checkpoint48d_post
339    o in preparation for r*:
340     a) use pre-computed gradient of hydrostatic potential:
341        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
342     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
343        => affects results of glob_oce_pressure (different truncation error)  
344      update output.txt of ideal_2D_oce & global_ocean_pressure
345    
346    checkpoint48d_pre
347    o in preparation for r*:
348      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
349      pass the 2 comp. of the grad. as arguments to momentum S/R.
350      but for the moment, only used if it does not change the results.
351    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
352    
353    checkpoint48c_post
354    Modifications in treatment of initial flux forcing controls
355    to avoid extra storing of flux fields.
356    
357    checkpoint48c_pre
358    o Added tidal_basin_2d experiment (currently 1D!)
359    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
360    
361    checkpoint48b_post
362    o r* coordinate added in #ifdef NONLIN_FRSURF block.
363     (modification to pressure gradient not yet implemented)
364    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
365      (for U & V) that are used for vertical advection of momentum.
366    
367    checkpoint48a_post
368    o In preparation for r*, use temp. array to compute vertical transport
369       in flux-form momentum pkg. => change results of few test-exp.
370      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
371                        lab_sea, natl_box & plume_on_slope
372    
373    checkpoint48
374    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
375    
376    checkpoint47j_post
377    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
378    o moved adexch from forward_step to addummy_in_stepping
379    o added exch in ctrl_map_...
380    o aveFreq.=0. at end of cost_final to avoid overwrite in
381      reverse checkpointing loop
382    o Yet more changes in gmredi:
383      * adgmredi_calc_tensor
384        avoiding all recomputation of gmredi_slope_limit
385      * adgmredi_x/y/rtransport
386        added flag for excessive storing to avoid recomp. of
387        u/v/rtans, dTdx/y/z
388        -> this is not really necessary and very memory-consuming
389      * adgmredi_slope_psi:
390        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
391      * gmredi_slope_limit
392        re-activated full calculation of taperfct for case 'ac02'
393    o updating verification/ adjoints of carbon, global_ocean.90x40x15
394    
395    checkpoint47i_post
396    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
397    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
398      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
399    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
400    o gmredi: fix few bugs.
401    
402    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
403    This will be a good checkpoint to plug into the ecco-branch.
404    o few modif.'s to get latest version adjointed
405      (mainly kick out code in ini_linear_phisurf)
406    o modif's to run adjoint with exactConserv
407    o case GM_BOLUS_ADVEC should be cleaned
408      S/R gmredi_slope_psi should be cleaned
409    o verification/carbon now has exactConserv=.TRUE.
410    
411    checkpoint47g_post
412    o time-average AIM output: becomes independent from statvars time-average
413      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
414    o After TAF bug fix:
415      Tested adjoint of gmredi package.
416      Tests were done with checkpoint47 rather than with latest
417      checkpoint47f_post since the latter is broken for the adjoint
418      verification/carbon/ contains both ADM and TLM gradient checks.
419    Here they are, before they get changed/lost/stolen.
420    Mostly modif.'s to fix numerical sensitivities.
421    Gradient checks OK for
422    - GM_taper_scheme:
423      * clipping
424      * ac02
425      * linear
426      * glw91
427      * dm95
428      * ldd97
429    - GMREDI_OPTIONS:
430      * GM_VISBECK_VARIABLE_K
431      * GM_NON_UNITY_DIAGONAL
432      * GM_EXTRA_DIAGONAL
433      * GM_BOLUS_ADVEC
434    in conjunction with data.gmredi parameters to be checked in
435    in a few minutes under verification/carbon/code/
436    
437    checkpoint47f_post
438    Merging from release1_p10:
439    o modifications for using pkg/exf with pkg/seaice
440      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
441        and SEAICE_EXTERNAL_FLUXES
442      - pkg/exf CPP options EXF_READ_EVAP and
443        EXF_NO_BULK_COMPUTATIONS
444      - usage examples are Experiments 8 and 9 in
445        verification/lab_sea/README
446      - verification/lab_sea default experiment now uses
447        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
448    
449    checkpoint47e_post
450    o created a tag prior to creating a branch
451    
452    checkpoint47d_post
453    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
454      at the bottom boundary had an erroneous half slip boundary condition
455    o added bottom drag and no slip boundary condition capabilities to
456      oceanic pressure coordinates code
457    o added new verification experiment global_ocean_pressure, this experiment is
458      also described in the tutorial section of the manual
459    checkpoint47d_pre
460    
461    checkpoint47c_post
462    o Added a verification experiment for a global cubed-sphere ocean run
463      -  verification/global_ocean.cubed32x32x30
464      -  uses pkg/therm_seaice and pkg/bulk_forcing
465    
466    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
467    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
468      when using P-coordinate; only implemented for atmospheric config.
469    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
470      NOTES: requires option NONLIN_FRSURF to be "#define".
471    o update advect_xz/results/output.txt (left from checkpoint44g_post)
472    
473    checkpoint47b_post
474    Merging from release1_p9:
475    o pkg/seaice
476      - removed GOTO's and added taf directives
477      - double precision constants to reduce the g77 (Linux)
478        to F77 (SGI) differences reported in release1_p8
479    o tools/genmake
480      - added SGI options
481    o verification/testscript
482      - updated to that of checkpoint47a_post
483    o verification/global_ocean.90x40x15/input/eedata
484      - modified for SGI f77 compatibility
485    o verification/lab_sea
486      - added description of sea-ice model
487      - added missing matlab routines
488      - added test of thermodynamics parallelization
489    
490    checkpoint47a_post
491    o new pkg: aim_v23
492     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
493       for now, keep the same surface forcing as before.
494     - Part-Cell implemented into AIM; check that Heat & Water are conserved
495     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
496     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
497    o add diagnostic of surface correction term in monitor output
498    
499    o bulk_force and therm_seaice
500    - Two packages:  bulk_force (Bulk forcing)
501      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
502    - Earlier integration from Stephaine Dutkiewicz
503      and Patrick Heimbach.
504    - Two ifdef statements for compile time,
505       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
506    
507    checkpoint47
508    differentiable version of checkpoint46n_post
509    o bug fix in quasihydrostaticterms
510    o * "clean" adjoint code (in terms of extensive recomputations)
511        can now be obtained for all GMREDI options (i.e. for
512        - GM_VISBECK_VARIABLE_K
513        - GM_NON_UNITY_DIAGONAL
514        - GM_EXTRA_DIAGONAL
515        - GM_BOLUS_ADVEC )
516      * However, wrong gradient check problem remains unsolved.
517      * New CPP options have been introduced for different
518        tapering schemes
519    o external_fields_load now part of differentiation list
520    o pressure needs multiple storing;
521      would be nice to have store_pressure at beginning or
522      end of forward_step, e.g. by having phiHyd global (5-dim.)
523      (NB: pressure is needed for certain cases in find_rho,
524      which is also invoked through convective_adjustment).
525    o recomputations in find_rho for cases
526     'JMD95'/'UNESCO' or 'MDJWF' are OK.
527    o #define ATMOSPHERIC_LOADING should be differentiable
528    o ini_forcing shifted to begining of initialise_varia
529    o Incorporating QNVS line search routines into MITgcm
530      (this is separate code, and therefore not under pkg)
531      lsopt/, optim/
532    o Updated verification/carbon/
533      - #define GM_VISBECK_VARIABLE_K
534      - GM_taper_scheme    = 'ldd97'    
535    
536    checkpoint46n_post
537    Merging from release1_p8:
538    o verification/natl_box:
539      updating new external_fields_load routine
540    o New package: pkg/seaice
541      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
542      The sea-ice code is based on Hibler (1979-1980).
543      Two sea-ice dynamic solvers, ADI and LSR, are included.
544      In addition to computing prognostic sea-ice variables and diagnosing
545      the forcing/external data fields that drive the ocean model,
546      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
547      The implied surface heat flux is then stored in variable
548      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
549      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
550      non-local transport term.  Because this call precedes model
551      thermodynamics, temperature under sea-ice may not be "exactly" at
552      the freezing point by the time theta is dumped or time-averaged.
553      N.B.: fairly large differences in accuracy occur across
554            different platforms/compilers; comparison between
555            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
556            generated output gives:
557       T           S           U           V
558      C D M    c        m  s        m  s        m  s        m  s
559      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
560      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
561      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
562    
563      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
564    o GAD:
565      - generated new common blocks to account for call of
566        same gad routines with differing traceridentities
567        (needed to modify tracerIdentity indices in GAD.h)
568      - generated separate common blocks for case useCubedSphereExchange
569        (Department of Futurology)
570      - parameter lists to gmredi_?transport: added tracerIdentity
571      - added new key indices to tamc.h
572    o external_fields_load:
573      - added this routine to TAF list
574      - needed to make some common blocks global and additional storing
575        along the same lines as exf package (checkpoint_lev?_directives.h)
576    o exf:
577      updated external forcing package
578      - bug fixes carried over from ecco-branch
579        (missing OBCS_OPTIONS.h in two routines)
580      - enable easy to use "no forcing".
581      - added exf I/O for atmospheric loading
582      - added exf I/O for runoff data
583      - transfered scaling between exf <-> MITgcm to exf namelist
584    o Adding new verification experiment global_with_exf.
585      This verification experiment is almost identical to the
586      global_ocean.90x40x15 experiment, except that it uses
587      the exf (and cal) package instead of the
588      external_fields_load routine (cf README file).
589    
590    checkpoint46m_post
591    o modified testscript to return -- when there are no lines of "%MON" output
592    o added new flag "quasiHydrostatic" for QH mode
593      and new routine quasihydrostaticterms()
594    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
595      New routine: mom_u_coriolis_nh()
596    o fixed sign of non-hydrostatic metric terms in u and v equations.
597      Depend on correct sign of gravitySign.
598    o added work.pc* to .cvsignore in aim directories using ifc
599    o introduced flag for controllin non-hydrostatic metric terms
600    o removed gravitySign from PARM04
601    o switched to g77/ifc from pgf77 in aim experiments
602    
603    checkpoint46l_post
604    o made convective adjustment work with pressure coordinates:
605     - changed the direction of k-loop in convective_adjustment.F for the
606       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
607     - adjusted the reference pressure k-index in convective_adjustment.F
608     - adjusted the convection condition in convect.F (in analogy to
609       calc_ivdc.F)
610     - convective_adjustment no longer computes anything on the halos
611     - removed the warnings about negative salinity from find_rho.F and
612       find_alpha.F; instead the new routine look_for_neg_salinity, called
613       at the beginning of find_rho, find_alpha, and find_beta, does a
614       check of the entire slice, if CPP-option
615       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
616    checkpoint46l_pre
617    
618    checkpoint46k_post
619    o fixed the verification/global_ocean.90x40x15 experiment:
620     - new bathymetry (the world according to A., JMC, and M.)
621     - new initial fields and forcing fields (*.bin files)
622     - new POLY3.COEFFS (for the next release one should switch to a full
623       equation of state: JMD95P or MDJWF)
624     - fixed several errors and redundancies in the data file
625     - experiment uses looped cells
626     - added matlab directory with diagnostic scripts for plotting of output
627    
628    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
629     - read AIM physics parameters from a file (data.aimphys)
630     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
631    
632    checkpoint46j_post
633    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
634    o move wVel computation at the end of the time step, in S/R integr_continuity
635    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
636    o update timeave pkg for wVel diagnostic.
637    checkpoint46j_pre
638    
639    checkpoint46i_post
640    o Clean up AIM package (and keep the results unchanged):
641      include CPP_OPTION and use IMPLICT NONE in all routines ;
642      declare all the variables _RL ; use _d 0 for all numerical constants.
643      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
644    
645    checkpoint46h_post
646    o cleaned up the use of rhoNil and rhoConst.
647      - rhoNil should only appear in the LINEAR equation of state, everywhere
648        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
649        and the dynamical equations are all divided by rhoConst
650    o introduced new parameter rhoConstFresh, a reference density of fresh
651      water, to remove the fresh water flux's dependence on rhoNil. The default
652      value is 999.8 kg/m^3
653    o cleanup up external_forcing.F and external_forcing_surf.F
654      - can now be used by both OCEANIC and OCEANICP
655    checkpoint46h_pre
656    
657     Added code to convert surface volume flux (fresh water) into
658     a mass flux when using P coordinates in the ocean (OCEANICP).
659     Note: It assumes you have set rho0=rhoConst=density of fresh water.
660    
661    checkpoint46g_post
662    o Include a new diagnostic variable phiHydLow for the ocean model
663      - in z-coordinates, it is the bottom pressure anomaly
664      - in p-coordinates, it is the sea surface elevation
665      - in both cases, these variable have global drift, reflecting the mass
666        drift in z-coordinates and the volume drift in p-coordinates
667      - included time averaging for phiHydLow, be aware of the drift!
668    o depth-dependent computation of Bo_surf for pressure coordinates
669      in the ocean (buoyancyRelation='OCEANICP')
670      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
671        Theta, Salinity, and Pressure in the parameter list. This routine is
672        presently contained in find_rho.F. This routine does not give the
673        correct density for 'POLY3', which would be a z-dependent reference
674        density.
675    o cleaned up find_rho
676      - removed obsolete 'eqn' from the parameter list.
677    o added two new verification experiments: gop and goz
678      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
679    checkpoint46g_pre
680    
681    checkpoint46f_post
682    o Enable tangent linear (forward mode) gradient checks:
683      - extended active file handling to g_... files
684      - added TANGENT_SIMULATION to theSimulationMode
685      - extended grdchk package accordingly
686    o added tangent linear setup in verification/carbon/code_ftl
687    o added adjoint setup in verification/front_relax/code_ad
688    
689    checkpoint46e_post
690    o Added new equation of state -> MDJWF
691      - EOS of McDougall et al., 2002, JAOT, submitted
692      - caveat: the equation of state is only valid for a smaller (more
693        realistic?) range of values than JMD95P/Z and UNESCO
694      - added masks to the calculation of pressure in store_pressure
695      - added more check values for density in check_eos (ini_eos.F), some of
696        the old check values are out of the range of the MDJWF-eos, so don't
697        expect perfect matches for those
698    checkpoint46e_pre
699    
700    checkpoint46d_post
701    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
702      'OCEANICP', also initialised field pressure correctly in ini_eos in the
703      case of pressure coordinates. eosType='JMD95Z' in
704      combination with buoyancyRelation='OCEANICP' now causes an error.
705    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
706      in find_alpha/beta.
707    checkpoint46d_pre
708    
709    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
710      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
711    
712    checkpoint46c_post
713    o Changes necessary for ocean in p-coordinates
714     -  Added new buoyancy relation = 'OCEANICP'
715     -  Added new parameters = gravitySign (this used to be contained inside
716        the factor dRdZ which I added when we first switched to R coordinates).
717     X GM/Redi is not compatible (yet)
718     X bottom drag and no-slip need to be debugged.
719    checkpoint46c_pre
720    
721    checkpoint46b_post
722    o Added new equation of state -> JMD95Z and JMD95P
723      - EOS of Jackett and McDougall, 1995, JAOT
724      - moved all EOS parameters into EOS.h
725      - new routines ini_eos.F, store_pressure.F
726    o Added UNESCO EOS, but not recommended because it requires
727      in-situ temperature (see JMD95)
728    o Modified formatting for knudsen2.f in utils/knudsen2 and added
729      unesco.f to be used with POLY3
730    checkpoint46b_pre
731    
732    checkpoint46a_post
733    o Added (atmospheric) pressure loading
734      - new field in FFIELDS.h, etc...
735      - new cpp flag ATMOSPHERIC_LOADING
736    o Changed hFacC to _hFacC in calc_phi_hyd.F
737    o Added SHORTWAVE_HEATING to some files for consistency
738    checkpoint46a_pre
739    
740    checkpoint46
741    further merges from release1_p5
742    o new ctrl package
743      - adopted from ECCO environment to enable optimization
744      - added Eliassen Palm fluxes to controls
745    o added Eliassen Palm flux controls to gradient check package
746    o cost package
747      - Compatible with new ctrl package
748      - added Eliassen Palm cost hooks
749      - modif's of existing cost functions
750    o Adjoint-related bug fixes in kpp:
751      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
752      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
753    o autodiff package
754      - flow directives:
755        + new for S/R do_the_model_io
756        + enhanced for S/R checkpoint
757        + new gmredi.flow
758      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
759        disable adcommon.h/g_common.h by default.
760      - fixed problem for adjoint of global_max
761    o modified verification/carbon/
762    o New setup for adjoint of global_ocean
763    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
764    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
765    o incorporated hooks for sponge layer code (external_forcing.F)
766    
767    checkpoint45d_post
768    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
769    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
770      (affects plume_on_slope "cg2d" output)
771    o add new parameter deltaTfreesurf for free-surface time stepping
772    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
773    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
774    o change phiMin in exp1 (to agree with documentation)
775    o add new flags:
776     - T,S forcing inside/outside Adams-Bashforth
777     - turn off temp,salt advection and/or forcing
778     - for each tracer, define internal flag for multiDimAdvection & A-B
779    o monitor: change definition of KE to check conservation of Energy
780    
781    checkpoint45c_post
782    o Removed f90 comments ("!")
783    o Modified initialisations to enable exf package for MITgcm
784      (without invoking ECCO_PACKAGE).
785    o modifications to gradient check package (Martin Losch)
786      - enable centered differences
787      - modified format of standard output
788    
789    checkpoint45b_post
790    o cleaned exchange calls in cg2d
791    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
792    o included CPP option SINGLE_LAYER_MODE in thermodynamics
793      to configure barotropic setup (Martin Losch)
794    o moved some initialisations within bi,bj loop in dynamics
795      (TAF flow dependency)
796    o in initialise_varia, moved call packages_init_variables
797      before convective_adjustment_init
798      (corresponding adjustment of TAF tape initialisation).
799    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
800    
801    checkpoint45a_post
802    o compute Rho over the whole domain (extend iMin,jMin indices)
803    o specific exchange for X-slice domain (case Ny=1)
804    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
805    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
806    
807    checkpoint44h_post = checkpoint45
808    o Fix to restore differentiability:
809      place at which packages_init_variables is called in
810      initialise_varia is crucial for reverse control flow.
811    o modifications in GMRedi to enable stable adjoint
812      (corresponding modif's in thermodynamics, dynamics)
813    o added missing hook for sponge layer code in external_forcing
814    o modified test cost functions
815    o storing in gad_advection (plus removal of write(0,*)!
816    o missing headers TR1.h added in convective_adjustment routines
817    o errorMessageUnit set non-equal zero in eeboot
818      (conflict on some platforms, e.g. IBM SP3)
819    o modified carbon verif.
820    
821    checkpoint44h_pre
822    o vertical grid option: allow to put the Interface at the middle between
823      2 cell-centers ; replace delZ in pkg/kpp by drF.
824    o GM Advective form: Tracers are advected using the residual transport (=
825      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
826    
827    checkpoint44g_post
828    o fix surface correction term in multiDimAdvection (affects plume_on_slope
829      results) ; ifdef missing in thermodynamics.F
830    
831    checkpoint44f_pre,checkpoint44f_post
832    o added PTRACERS package
833      This allows an arbitrary number of passive tracers to be integrated
834      forward simultaneously with the dynamicaly model.
835      + Implemented so far:
836        - basic forward algorithm (time-stepping, advection, diffusion, convection)
837        - I/O and checkpointing
838        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
839      + Not implemented so far:
840        - KPP
841        - OBCS
842      + No specific example supplied (yet) but global_ocean.90x40x15 has the
843        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
844        line in data.pkg.
845      + This package is disabled by default since it increases storage.
846    
847    
848    o testscript: added -cleanup option
849    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
850                 b) enable to filter 2D fields.
851    
852    checkpoint44e_pre,post
853    o re-wrote convective adjustment to use pre-calculated weights
854      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
855      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
856      Original calls to convect() still in place.
857    
858    chkpt44d_pre,post
859    o added missing EXCLUDE_MONITOR flags
860    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
861      (incompatible typ in MIN/MAX expressions caused problems
862      on IBM SP3)
863    o in genmake added variable MAKEDEPEND
864      plus resetting for case SunOS
865    o added timer_stats.c routine for IBM SP3
866    o removed variables in dynamics
867    !!! I forgot to create tag chkpt44d_pre !!!
868    !!! But chkpt44d_pre = chkpt44c_post    !!!
869    
870    o real fresh water flux implemented with non-linear free-surface.
871    
872    chkpt44c_pre,post
873    o few fix (mask in shap_s2, EmPmR in external_field_load,
874      USE_NATURAL_BCS in solve_for_P);
875    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
876    
877    checkpoint44b_pre/_post
878    o merge of relevant stuff from the ecco-branch:
879      - genmake: removed $S64 overwrite for case SunOS
880      - pkg/exf: update and corrections for field swapping and obcs
881      - pkg/ecco: parameter lists for the_model_main, the_main_loop
882                  harmonized between ECCO and MITgcm
883      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
884                      updated checkpointing_lev... lists for obcs
885      - model/src: minor changes in forward_step, plot_field
886                   added directive for divided adjoint in the_main_loop
887      - pkg/mdsio: added mdsio_gl_slice
888    
889    o check parameters & config (chkpt44a_pre,post)
890    o OBC and NonLin_FrSurf.
891    
892    checkpoint44
893    o fix bug in mom_vi_del2uv
894    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
895    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
896    o update AIM experiments (NCEP input files)
897    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
898    o added some stuff for AD
899    
900    checkpoint43
901    o added two new advection tests
902    o added global 4x4 degree ocean test
903    o added test of H&S94 with free surface on cube
904    o some final mods for gradient check, adjoint,...
905    
906    checkpoint42
907      Fixed AD-related problems:
908    o Store directives up-to-date with re-arranged Adams-Bashforth
909      (mainly thermodynamics.F)
910    o New store directives for multi-dim. advection schemes
911      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
912      * new common block and key passkey
913      (mainly gad_advection.F)
914    o Modified store directives for split of dynamics/thermodynamics
915      for the case ALLOW_KPP
916    o Cleaned argument list for timestep_tracer.F
917    
918    checkpoint41
919    o re-formatted/added comments in prologues of key subroutines
920      to work with protex
921    
922    checkpoint40
923    o moved calc_gs, calc_gt and calc_tr1 back to model/src
924    o added FLT (floats) package from Arne along with demo. experiment
925    o re-arranged Adams-Bashforth scheme for tracers to allow easier
926      implementation of forward-in-time forcing terms
927    o more mods for non-linear free-surface including new variable
928    o modified multi-dim method to work on cube
929    o bug fix in KPP (from DM)
930    
931    checkpoint40pre9
932    o added DST advection schemes
933    o fix MPI bug on SGI's
934    o modifications for non-linear free-surface
935    o fixed conditionals for fixed flow/passive tracer only mode
936    o added tension/strain form of stress tensor
937    o changes to commenting of arguments for TAF/TAMC
938    o added/updated many matlab scripts
939    o added multi-dimensional advection method for tracers
940      
941    checkpoint40pre8
942    o new package rw/
943      Added method for dumping intermediate local arrays:
944      mdsio_writetile - same as mdsio_writefield except works from inside
945                        bi,bj loop
946      mdsio_writelocal - same as mdsio_writetile except works for local
947                         arrays
948      write_local_r? - higher-level wrapper for mdsio_writelocal
949      Controlled by diagFreq. Defaults to zero (ie. no dumps)
950      Example given at end of mom_vecinv.F that dumps some local arrays.
951    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
952      control flux-form versus vector invariant code.
953      Switch is runtime flag vectorInvariantMomentum (defaults to false)
954      or genmake -DISABLE ...
955    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
956      (additional storing is now needed for case vecinv;
957      currently nothing implemented to switch this storing off
958      in case fluxform is used since no CPP flag available).
959    
960    checkpoint40pre7
961    o bug fix in dynamics.F
962      calc_viscosity called before k=1,Nr loop.
963    o added some #ifdef's ALLOW_PASSIVE_TRACER
964    o cleaned initialisations in ctrl_map_ini
965      related to TAF
966    
967    checkpoint40pre6
968    o split dynamics into thermodynamics & dynamics
969    o corresponding split of calc_diffusivity into
970      calc_diffusivity, calc_viscosity
971      (kpp_calc_diff, kpp_calc_visc).
972    o Added diffkr, kapgm to control variables
973    o bug fix in gmredi_slope_limit for ldd97
974    
975    checkpoint40pre5
976    o proper initialization of Adams-Bashforth time stepping
977      + uses forward step for very first step of model (iter=0)
978    o re-generated *all* output since almost all output is modified by this
979      change (sorry but we've been putting this one off for about 2 years)
980      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
981        *not* regenerated since they are already out of date and I don't
982        want to create the impression that they are suddenly working.
983    o removed KAP stuff for DEC's
984    o modified/added many .cvsignore files in */code and */input
985    o added new expt "solid-body.cs-32x32x1"
986      + this uses an alternative form of ini_curvilinear_grid.F which
987        is not necessarily any better than the current one...
988    
989    checkpoint40pre4
990    o added re-initialisations of utrans,vtrans,rtrans in
991      calc_common_factors which are crucial for TAF.
992    o extended iMin,jMin range for calc_common_factors,
993      calc_diffusivity
994    o added option ALLOW_PASSIVE_TRACER
995    o a few minor updates and fixes
996    
997    checkpoint40pre3
998    o created calc_gtr1.F for gad package
999    o split the_main_loop and re-introduced forward_step
1000    o some recomputations of nIter0 for TAMC
1001    
1002    checkpoint40pre2
1003    o Updated to latest branch of AJA, JMC
1004    o Added gradient check package
1005    o Added routines for passive tracer handling
1006    o Added carbon sequestration sensitivity experiment
1007    
1008    checkpoint39
1009     o Modifications and fixes to support TAMC
1010       (mainly missing or wrong directives)
1011     o Corrected common blocks when fooling TAMC to produce adjoint I/O
1012       in addummy_in_stepping
1013     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
1014     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
1015     o Included following packages:
1016       cal: calendar
1017       exf: external forcing
1018       ecco: essential routines to control use of cal, exf
1019             (NB: this is not the full ECCO environment)
1020     o disabled some packages by default in genmake
1021    
1022    checkpoint38
1023     o see notes_c37_adj.txt
1024     o corrected wrong layer index in external_forcing_t
1025     o replaced the_main_loop/forward_step by the_main_loop
1026     o removed forceoutput from write_state
1027       (replaced criteria for initial/final state)
1028     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
1029    
1030    checkpoint37
1031     o mdsio.F routine split and packaged in pkg/mdsio
1032       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
1033        used unless genmake -disable=mdsio)
1034     o allow a more precise surface-geopotential gradient for the atmosphere
1035       taking into account the change in space of Alpha (=1/rho) at the surface.
1036     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
1037       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
1038     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
1039       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
1040       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
1041     o Time-Average diagnostics defined as a pseudo package "timeave".
1042     o pickup files : old pickup (before c35) did not work with new code (c35
1043       and after) unless activating 2 commented lines in initialise-varia.
1044     o Non-Hydrostatic pickup file Pb fixed.
1045     o bug with Rigid-lid version (since c35) fixed.  
1046    
1047    checkpoint36
1048     o implement Crank-Nickelson barotropic time-stepping
1049     o recover Time-Average diagnostics
1050     o fix Pb in checkpoint (PR#19)
1051     o AIM become a standard package ; clean unused CPP_kees
1052    
1053    checkpoint35
1054     o subtantial rewrite of dynamics.f
1055     o allows staggered time-stepping
1056     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
1057     o added bottom drag (linear + quadratic)
1058    
1059    checkpoint34
1060     o Modified exchange routines for correct reverse simulation.
1061     o Added verification output to comply with bug fix in impldiff.F
1062       as of c33 (exp2, natl_box).
1063     o Corrected store directives in dynamics.F
1064     o Corrected array boundaries in impldiff.F
1065     o Corrected array dimensions in gmredi.
1066       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1067     o Added routine GLOBAL_SUM_INT to global_sum.F
1068     o Added mdsio_gl.F for ECCO purposes.
1069    
1070    checkpoint33
1071     o Fixed bug in lower BC in impldiff.F
1072     o Fixed confusion about units of forcing arrays in FFIELDS.h
1073       namely Fu,Fv,Qnet,Qsw,EmPmR:
1074       - Removed verification/natl_box/code/external_fields_scale.F
1075         (did not differ from that in model/src)
1076       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1077         (see FFIELDS.h for description)
1078       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1079         kpp_calc.F and kpp_transport_t.F
1080       - Removed model/src/external_fields_scale.F and calls to it
1081       - verification/natl_box uses flux data with "atmospheric" sign so
1082         a special version of external_fields_load.F is used to
1083         change the data as it's read in. This way, the arrays
1084         have the right units and signs at all times tha a user could
1085         possibly use them.
1086     o Corrected genmake to delete a temporary file during configuration
1087    
1088    checkpoint32
1089     o Scaling of forcing fields moved from external_forcing.F to
1090       external_fields_scale.F, called directly after loading fields.
1091     o Surface relaxation terms added to surface tendency fields in
1092       extra subroutine.
1093     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1094       fields.
1095     o Changes in GMRedi to comply with packaging structure.
1096     o Modifications and bug fixes in KPP package.
1097     o Verification experiment for KPP added (verification/nat_box/)
1098    
1099    checkpoint31
1100     o Packages interface brought in line with defined standard
1101       -> new routines packages_...F
1102       -> changes in initialise_fixed.F, initialise_varia.F
1103       -> enables initialisation interface for ECCO package
1104     o Rescaling of external forcing fields immediately after read
1105       (removed from external_forcing.F)
1106       -> new: surface_fields_scale.F
1107       -> affects ini_foorcing.F, external_fields_load.F
1108     o Computation of surface tendencies before tendency updates.
1109       -> new: external_forcing_surf.F
1110     o Change of variable names useGMRedi, useKPP, useECCO
1111     o Further changes in dynamics.F, impldiff.F for TAMC
1112     o Tested for experiments 0, 2, 4.
1113       - not yet tested for GMRedi.
1114       - not yet tested for KPP.
1115    
1116    checkpoint30
1117     o Updates for OBCs
1118     o New experiment for test OBCs (internal_wave)
1119     o New output.txt in verification/exp4/results/
1120     o Updates for KPP: calculation of viscosity corrected, new variables
1121       kpp_dumpFreq and kpp_taveFreq
1122     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1123       and entry for T90 in genmake
1124    
1125    checkpoint29
1126     o packaged KPP and GM/Redi
1127    
1128    checkpoint28
1129     o Corrected initialization of hFacMin for difference vertical coordinates
1130     o Modified calculation of partial cell thickness to more robust algorithm
1131     o config_summary.F: replaced write_1D_... by write_0D_...
1132       read_write.F: added subroutines write_0D_...
1133     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1134       included some initialisations required for TAMC.
1135     o routine calc_isoslopes: modified sqrt computation to make it
1136       differentiable for zero argument.
1137     o routines dynamics, impldiff:
1138       included store directives and tape key computations required for TAMC.
1139     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1140    
1141    checkpoint27
1142     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1143       formulation works properly with variable resolution.
1144     o restructured the calling tree between the_model_main() and dynamics()
1145     o split initialise() into initialise_fixed() and initialise_varia()
1146     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1147       in new routine ini_psurf()
1148    
1149    checkpoint26
1150     o moved some #ifdef in optional routines to encompass everything
1151       except the argument declarations. This was using up some memory.
1152     o fixed macros like _ADT to work with both versions of Linux cpp
1153     o cleaned up some unused and uninitialized variables
1154       (helps when debugging with strict compile options)
1155     o split up CPP_EEOPTIONS.h into options and macros
1156       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1157     o patch for 2 processor JAM mode
1158    
1159    checkpoint25
1160     o updates for OBCs and NH
1161     o dramatically reduced memory usage
1162     o added "JAM" routines for use on Artic network
1163     o parameterization of convection by implicit vertical diffusion
1164     o added a diagnostic of convective index
1165     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1166       (this is was partly for OBCs and NH but also in anticipation of
1167        an explicit free-surface option)
1168     o initial state input files for U and V
1169    
1170    checkpoint24
1171     o Removed some spurious "REAL"s
1172     o Updated KPP to latest version from JPL
1173     o Added a COS(latitude) in horizontal viscosity
1174    
1175    checkpoint23
1176     o Added del^4 diffusion for salt and temperature
1177     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1178    
1179    checkpoint22
1180     o Made many small changes: implicit none, format(i5), etc...
1181     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1182    
1183    checkpoint21
1184     o Introduced new I/O package that supports direct-access records (mdsio.F)
1185     o Split-up mid-level I/O routines
1186     o Updated input data for experiments 0,1,2,4 and 5
1187     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1188    
1189    checkpoint20
1190     o Tidied up open-boundaries some more
1191     o Added non-hydrostatic code
1192     o Fixed some input data
1193     o Modified MPI start-up to work in "coupled" context.
1194    
1195    checkpoint19
1196     o Tidied up directory structure for verification experiments.
1197     o Added new code for open boundaries.
1198     o Corrected advective terms near boundaries.
1199     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1200     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1201     o Split default parameters out of ini_parms.F into set_defaults.F.
1202    
1203    checkpoint18
1204     o Further changes for optional code generation with
1205       CPP - ugh!
1206    
1207    checkpoint17
1208     o Beginning to incorporating modularity
1209       for supporting atmos. and ocean configs.
1210     o Small changes for TAMC complinace
1211     o New ultra simple test case. Barotropic box
1212       configuration "exp0".
1213    
1214    checkpoint16
1215     o Minor changes to exchange routines to support
1216       accumulation in reverse mode. Adjoint of an
1217       assignment is an addition.
1218     o Changes to support compilation by TAMC (LR(1)
1219       syntax) and by g77 under Linux ( 72 character
1220       limit ).
1221    
1222    checkpoint15
1223     Rewrote exchange routines to allow
1224     o General tile <-> tile connectivity.
1225     o TAMC reverse mode flag ( is this really needed? )
1226     o Variable width overlap and exchange region widths.
1227     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1228       shmput/shmget, VIA, SYSV shmem and every other cool
1229       communication method.
1230    
1231    checkpoint14
1232     Consistent isomorphism chages made. These allow dynamical core
1233     to support both pressure and meters as a vertical coordinate.
1234    
1235    checkpoint13
1236     Release which corrects global_max problem and a couple
1237     of KGM time-averaging diagnostic errors. Also contains
1238     a double-gyre experiment setup as well as the baseline
1239     4 degree global template. The double gyre template is
1240     organised to allow it to be applied automatically to
1241     the baseline configuration.
1242    
1243    branch-point-rdot
1244     A few tidy-ups have been made bt the real point of this
1245     check-point (excuse the pun) is to allow a branch to be
1246     made for the purposes of adding the rDot alterations.
1247     I don't want to commit the rDot to the main-trunk until
1248     we've actually tested it...
1249    
1250    checkpoint12
1251     Tidy up and added generic genmake script (formerly
1252     configure script).
1253     Released to testers.
1254    
1255    checkpoint11
1256     Re-arranged initialise() and introduced ini_vertical_grid()
1257     and ini_masks_etc().
1258    
1259    checkpoint10
1260     Introduced the configure script.
1261     Separated out the diags package.
1262     Added template for writing time-averages of tile/intermediate quantities.
1263     Updated SIZE.h in exp2 and made the data big-endian.
1264    
1265    checkpoint9
1266     MPI fix. Filename changes (meta/data). salbin*y stuff.
1267     General tidy-up.
1268     SST.bin SSS.bin added to verification/exp2
1269    
1270    checkpoint8
1271     Inludes time-dependant forcing and time-averaging.
1272     Works at 4x4 and 2.8125x2.8125 global
1273    
1274    checkpoint7-4degree-ref
1275     Branch from checkpoint7. Released for application to
1276     global modeling and general modeling - process studies, regional
1277     model etc..
1278     Configured for verification/exp2 - 4 degree global, two process.
1279    
1280    checkpoint7
1281     Created by cnh
1282     Simple 4 degree global simulation
1283     configuration.
1284     Includes climatological wind,
1285     hydrography, bathymetry etc
1286     Does not include Heat Flux and E-P
1287    
1288  checkpoint6  checkpoint6
1289   Created by cnh   Created by cnh
1290   merged checkpoint5 with CD and   merged checkpoint5 with CD and

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