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revision 1.4 by cnh, Mon Jun 8 22:38:51 1998 UTC revision 1.173 by jmc, Thu Jul 31 18:46:24 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o land pkg: read initial state from files.
7    o AIM : add stratospheric drag in the upper level
8    
9    checkpoint51d_post
10    o change function ILNBLNK (=> last non-blank char.) to return zero
11      (instead of the string length) when the string. char is empty
12    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
13    o modif's to restore TAMC compatibility
14      - avoid "_d" constructs in PARAMETER declarations
15      - avoid interrupting lines by comment lines
16    o Use cluster local disks for purely local I/O
17      vs. globally visible disks needed for ctrl stuff
18      (merged from ecco-branch)
19      - new active_file_loc... and mdsio_..._loc routines
20      - affected packages: autodiff, ctrl, grdchk, mdsio
21    
22    checkpoint51c_post
23    o introducing integer flag debugLevel
24      - debLevZero: suppress all output
25      - debLevA: standard
26      - debLevB: equivalent to current debugMode=.TRUE.
27    o introducing pathname variable mdsioLocalDir for mdsio
28      that can be specified at runtime
29      (relevant for cluster I/O to local disk)
30    `
31    >>>checkpoint51b_post
32    adjoint of ptracers
33    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
34    o extended state in checkpoint_lev?, etc.
35    o alternative ctrl/cost with tr1 or ptracer
36    o new comlev1_bibj_ptracers
37    o new ptracers.flow
38    o made ptracers_forcing same as external_forcing_s
39    o added verification for adjoint with ptracers
40      - adm. grdchk fail so far
41      - tlm. grdchk OK
42      - checked tapelev/comlev recomputations: OK
43    <<<checkpoint51b_pre
44    
45    checkpoint51a_post
46    o added code for biogeochemistry package
47      - new pkgs: dic, gchem
48      - new subroutine in ptracers
49    o modify code for biogeo packages
50      - in model/src and pkg/ptracers
51    
52    checkpoint51
53    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
54      - autodiff, ctrl, exf, grdchk, seaice
55      kept separate packages
56      - cost, ecco, obcs
57    o updating verification/internal_wave, verification/lab_sea
58      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
59    
60    checkpoint50i_post
61    o Preparing next differentiable checkpoint and sync
62      of MAIN vs. ecco-branch
63      - 1st step: this one is differentiable
64      - 2nd step: next(! not this) checkpoint will have updated packages
65                  from ecco-branch)
66    
67    checkpoint50h_post
68    o new package "land": provide surface BC for AIM.
69    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
70    o AIM: use true log-P extrapolation for near surface temp (= as in
71        F.Molteni paper) ; update aim.5l_cs output.
72    o New variable in PARM03 for more flexible pickups
73    o somewhat cleaned package initialisation sequence for
74      ctrl/ cost/ ecco/ in packages_... routines
75    
76    checkpoint50g_post
77    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
78      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
79      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
80        made the default because of faster convergence than ADI
81    
82    checkpoint50f_post
83    o exf totally restructured
84      - replaced all exf_set_ routines by one generic exf_set_gen.F
85        and made sure it's still differentiable
86      - split exf_getffields.F into new exf_bulkformulae.F
87      - exf_inscal_/exf_outscal_ suffixes consistent with field names
88      - updated adjoint/makefile and relevant verif. accordingly
89    
90    checkpoint50f_pre
91     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
92          + change Evap over land. (update aim.5l_cs output)
93     o added missing .cvsignores and made uniform across expts
94     o changed configuration of tidal_basin_2d expt
95     o added pkg/debug functions for tracing code in fatal crashes
96     o tidied pkg/monitor to use MONITOR_OPTIONS.h
97     o new fn in pkg/monitor to stop model if solution grows too big
98     o removed lots of single quotes from comments
99    
100    checkpoint50e_post
101    o make KPP work with PTRACERS
102     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
103       nearly a copy of kpp_transport_s
104     - there is no analogue to SurfaceTendencyS, so I have to use
105       gPtr(of the surface layer) instead
106    o add a new platform SunFire+mpi (SunFire 15000) to genmake
107    checkpoint50e_pre
108    
109    checkpoint50d_post
110    o change kpp output from multiple-record state files to single-record state
111      files analogous to write_state.F
112    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
113      analogous to the cg2d-related output.
114    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
115      so that writing to internal file fn (with length 512) fails.
116    checkpoint50d_pre
117    
118    checkpoint50c_post
119    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
120    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
121    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
122    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
123    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
124    
125    checkpoint50c_pre
126    Merging from release1_p13:
127    o bug fix for pkg/seaice dynamic solver
128    o Added SEAICE_initialHEFF to pkg/seaice
129    
130    checkpoint50b_post
131    o store u*,v* in gU,V instead of in guNm1,gvNm1
132    o in order to put the momForcing out of the Adams-Bashforth:
133      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
134      to timestep.F
135    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
136    o re-generate output for highly sensitive test-exp:
137       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
138    
139    checkpoint50b_pre
140    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
141    o corrected CPP option mismatch in exf_Bulk... functions for case
142      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
143    
144    checkpoint50a_post
145    o Bug fix for merging between c50 and KPP.
146      ikey was passed from thermodynamics to kpp_calc via
147      common block rather than being recomputed in kpp_calc,
148      in contradiction with new key itdkey.
149      New key ikppkey created, and tamc.h headers updated.
150    
151    checkpoint50
152    - 2nd step of merge with ecco-branch:
153      merge changes in ecco-branch back into main trunk
154    - bug fix in find_alpha
155    - more storing in gmredi_calc_tensor.F, kpp_routines.F
156    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
157    - merged some sliced AD support routines
158    
159    checkpoint49
160    merged from ecco-branch:
161    o exf:
162      - Enable initialisation of forcing fields to constant
163        (runtime) values.
164      - in exf_getffields.F
165        Reduce i-/j-loop to interior domain, discarding overlaps.
166        That also fixes wrong TAF-key computations for key_1, key_2
167        with bulf formulae.
168      - exf_init.F modify #ifdef for exf_init_evap
169      - exf_getffieldrec.F, ctrl_getrec.F
170        The following INT-usages are not safe:
171          fldsecs  = int(fldsecs/fldperiod)*fldperiod
172          fldcount = int(fldsecs/fldperiod) + 1
173        and were modified.
174    o autodiff: checkpoint_lev...
175      - updated storing for bulk formulae (some arrays were missing)
176      - added state for seaice package
177      - synchronized with main branch
178    o DIVA:
179      Modif.s in
180      - the_main_loop.F
181      - the_model_main.F
182      and added cost_final_restore.F cost_final_store.F
183      o With these changes, it is possible to fully separate
184        the first forward run to compute the cost function (mdthe_main_loop)
185        and adjoint runs over individual DIVA intervals (adthe_main_loop)
186        into separate model executions.
187        This enables better tuning of DIVA to given queue sizes.
188      o Loss of cost function value in consecutive DIVA runs is
189        fixed by storing to 'costfinal' file.
190      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
191        beginning/end of adjoint integration is accounted for.
192      The current changes apply to TAF-1.4.26.
193      TAF has one remaining bug, requiring one manual change
194      (see MITgcm manual).
195    o cal: synchronized between MAIN and ecco-branch
196    
197    checkpoint48i_post
198    o Changes to restore differentiability of code w.r.t. previous tag
199      (mostly adding new routines to make list and replacing
200      pressure by totPhiHyd).
201    o Updated and merged grdchk package
202      - has both ADM and TLM checks
203      - works for single- and multi-proc.
204      - output cleaned
205      - worked successfully for parallel DIVA
206    o genmake:
207      - Adding -platform=SP4
208      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
209    o Modif. for DIVA:
210      ctrl_unpack should not be called in intermediate DIVA interval.
211      (similar thing would apply for active files such as
212      tbar, sbar, psbar, which should not be reinitialised;
213      only relevant for ecco-branch)
214    
215    checkpoint48h_post
216    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
217    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
218    o Added SEAICE_initialHEFF to pkg/seaice
219    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
220    
221    checkpoint48g_post
222    --- EOS:
223    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
224      store total Potential in totPhyHyd for diagnostics & EOS.
225    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
226    --- Pressure/geopotential gradient:
227    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
228    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
229      ( changes results of global_ocean_pressure )
230    o NLFS + z-coord.: add eta*Rho' contribution.
231    o accurate phiHyd when using interface-W at the middle between 2 centers
232     ( changes results of ideal_2D_oce )
233    o includes r* 2nd term in potential gradient.
234    
235    checkpoint48f_post
236    Merging from release1_p12:
237    o Modifications for using pkg/exf with pkg/seaice
238      - improved description of the various forcing configurations
239      - added basic radiation bulk formulae to pkg/exf
240      - units/sign fix for evap computation in exf_getffields.F
241      - updated verification/global_with_exf/results/output.txt
242    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
243      (SBO) core products, including oceanic mass, center-of-mass,
244      angular, and bottom pressure (see pkg/sbo/README.sbo).
245    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
246      to avoid negative values in shallow regions.
247      - updated verification/natl_box/results/output.txt
248      - updated verification/lab_sea/results/output.txt
249    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
250    o Added useSingleCpuIO option (see PARAMS.h).
251    o Updated useSingleCpuIO option in mdsio_writefield.F to
252      work with multi-field files, e.g., for single-file pickup.
253    o pkg/seaice:
254      - bug fix in growth.F: QNET for no shortwave case
255      - added HeffFile for specifying initial sea-ice thickness
256      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
257    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
258      kpp_transport_t.F, forward_step.F, and the_main_loop.F
259    o pkg/seaice:
260      - adjoint-friendly modifications
261      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
262    
263    checkpoint48e_post
264    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
265    o dynamics: change definition of computational domain & adapt mom_fluxform
266      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
267    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
268        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
269        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
270        global_ocean.90x40x15 global_with_exf global_ocean_pressure
271        inverted_barometer solid-body.cs-32x32x1
272      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
273    
274    checkpoint48d_post
275    o in preparation for r*:
276     a) use pre-computed gradient of hydrostatic potential:
277        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
278     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
279        => affects results of glob_oce_pressure (different truncation error)  
280      update output.txt of ideal_2D_oce & global_ocean_pressure
281    
282    checkpoint48d_pre
283    o in preparation for r*:
284      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
285      pass the 2 comp. of the grad. as arguments to momentum S/R.
286      but for the moment, only used if it does not change the results.
287    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
288    
289    checkpoint48c_post
290    Modifications in treatment of initial flux forcing controls
291    to avoid extra storing of flux fields.
292    
293    checkpoint48c_pre
294    o Added tidal_basin_2d experiment (currently 1D!)
295    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
296    
297    checkpoint48b_post
298    o r* coordinate added in #ifdef NONLIN_FRSURF block.
299     (modification to pressure gradient not yet implemented)
300    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
301      (for U & V) that are used for vertical advection of momentum.
302    
303    checkpoint48a_post
304    o In preparation for r*, use temp. array to compute vertical transport
305       in flux-form momentum pkg. => change results of few test-exp.
306      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
307                        lab_sea, natl_box & plume_on_slope
308    
309    checkpoint48
310    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
311    
312    checkpoint47j_post
313    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
314    o moved adexch from forward_step to addummy_in_stepping
315    o added exch in ctrl_map_...
316    o aveFreq.=0. at end of cost_final to avoid overwrite in
317      reverse checkpointing loop
318    o Yet more changes in gmredi:
319      * adgmredi_calc_tensor
320        avoiding all recomputation of gmredi_slope_limit
321      * adgmredi_x/y/rtransport
322        added flag for excessive storing to avoid recomp. of
323        u/v/rtans, dTdx/y/z
324        -> this is not really necessary and very memory-consuming
325      * adgmredi_slope_psi:
326        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
327      * gmredi_slope_limit
328        re-activated full calculation of taperfct for case 'ac02'
329    o updating verification/ adjoints of carbon, global_ocean.90x40x15
330    
331    checkpoint47i_post
332    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
333    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
334      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
335    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
336    o gmredi: fix few bugs.
337    
338    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
339    This will be a good checkpoint to plug into the ecco-branch.
340    o few modif.'s to get latest version adjointed
341      (mainly kick out code in ini_linear_phisurf)
342    o modif's to run adjoint with exactConserv
343    o case GM_BOLUS_ADVEC should be cleaned
344      S/R gmredi_slope_psi should be cleaned
345    o verification/carbon now has exactConserv=.TRUE.
346    
347    checkpoint47g_post
348    o time-average AIM output: becomes independent from statvars time-average
349      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
350    o After TAF bug fix:
351      Tested adjoint of gmredi package.
352      Tests were done with checkpoint47 rather than with latest
353      checkpoint47f_post since the latter is broken for the adjoint
354      verification/carbon/ contains both ADM and TLM gradient checks.
355    Here they are, before they get changed/lost/stolen.
356    Mostly modif.'s to fix numerical sensitivities.
357    Gradient checks OK for
358    - GM_taper_scheme:
359      * clipping
360      * ac02
361      * linear
362      * glw91
363      * dm95
364      * ldd97
365    - GMREDI_OPTIONS:
366      * GM_VISBECK_VARIABLE_K
367      * GM_NON_UNITY_DIAGONAL
368      * GM_EXTRA_DIAGONAL
369      * GM_BOLUS_ADVEC
370    in conjunction with data.gmredi parameters to be checked in
371    in a few minutes under verification/carbon/code/
372    
373    checkpoint47f_post
374    Merging from release1_p10:
375    o modifications for using pkg/exf with pkg/seaice
376      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
377        and SEAICE_EXTERNAL_FLUXES
378      - pkg/exf CPP options EXF_READ_EVAP and
379        EXF_NO_BULK_COMPUTATIONS
380      - usage examples are Experiments 8 and 9 in
381        verification/lab_sea/README
382      - verification/lab_sea default experiment now uses
383        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
384    
385    checkpoint47e_post
386    o created a tag prior to creating a branch
387    
388    checkpoint47d_post
389    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
390      at the bottom boundary had an erroneous half slip boundary condition
391    o added bottom drag and no slip boundary condition capabilities to
392      oceanic pressure coordinates code
393    o added new verification experiment global_ocean_pressure, this experiment is
394      also described in the tutorial section of the manual
395    checkpoint47d_pre
396    
397    checkpoint47c_post
398    o Added a verification experiment for a global cubed-sphere ocean run
399      -  verification/global_ocean.cubed32x32x30
400      -  uses pkg/therm_seaice and pkg/bulk_forcing
401    
402    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
403    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
404      when using P-coordinate; only implemented for atmospheric config.
405    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
406      NOTES: requires option NONLIN_FRSURF to be "#define".
407    o update advect_xz/results/output.txt (left from checkpoint44g_post)
408    
409    checkpoint47b_post
410    Merging from release1_p9:
411    o pkg/seaice
412      - removed GOTO's and added taf directives
413      - double precision constants to reduce the g77 (Linux)
414        to F77 (SGI) differences reported in release1_p8
415    o tools/genmake
416      - added SGI options
417    o verification/testscript
418      - updated to that of checkpoint47a_post
419    o verification/global_ocean.90x40x15/input/eedata
420      - modified for SGI f77 compatibility
421    o verification/lab_sea
422      - added description of sea-ice model
423      - added missing matlab routines
424      - added test of thermodynamics parallelization
425    
426    checkpoint47a_post
427    o new pkg: aim_v23
428     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
429       for now, keep the same surface forcing as before.
430     - Part-Cell implemented into AIM; check that Heat & Water are conserved
431     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
432     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
433    o add diagnostic of surface correction term in monitor output
434    
435    o bulk_force and therm_seaice
436    - Two packages:  bulk_force (Bulk forcing)
437      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
438    - Earlier integration from Stephaine Dutkiewicz
439      and Patrick Heimbach.
440    - Two ifdef statements for compile time,
441       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
442    
443    checkpoint47
444    differentiable version of checkpoint46n_post
445    o bug fix in quasihydrostaticterms
446    o * "clean" adjoint code (in terms of extensive recomputations)
447        can now be obtained for all GMREDI options (i.e. for
448        - GM_VISBECK_VARIABLE_K
449        - GM_NON_UNITY_DIAGONAL
450        - GM_EXTRA_DIAGONAL
451        - GM_BOLUS_ADVEC )
452      * However, wrong gradient check problem remains unsolved.
453      * New CPP options have been introduced for different
454        tapering schemes
455    o external_fields_load now part of differentiation list
456    o pressure needs multiple storing;
457      would be nice to have store_pressure at beginning or
458      end of forward_step, e.g. by having phiHyd global (5-dim.)
459      (NB: pressure is needed for certain cases in find_rho,
460      which is also invoked through convective_adjustment).
461    o recomputations in find_rho for cases
462     'JMD95'/'UNESCO' or 'MDJWF' are OK.
463    o #define ATMOSPHERIC_LOADING should be differentiable
464    o ini_forcing shifted to begining of initialise_varia
465    o Incorporating QNVS line search routines into MITgcm
466      (this is separate code, and therefore not under pkg)
467      lsopt/, optim/
468    o Updated verification/carbon/
469      - #define GM_VISBECK_VARIABLE_K
470      - GM_taper_scheme    = 'ldd97'    
471    
472    checkpoint46n_post
473    Merging from release1_p8:
474    o verification/natl_box:
475      updating new external_fields_load routine
476    o New package: pkg/seaice
477      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
478      The sea-ice code is based on Hibler (1979-1980).
479      Two sea-ice dynamic solvers, ADI and LSR, are included.
480      In addition to computing prognostic sea-ice variables and diagnosing
481      the forcing/external data fields that drive the ocean model,
482      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
483      The implied surface heat flux is then stored in variable
484      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
485      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
486      non-local transport term.  Because this call precedes model
487      thermodynamics, temperature under sea-ice may not be "exactly" at
488      the freezing point by the time theta is dumped or time-averaged.
489      N.B.: fairly large differences in accuracy occur across
490            different platforms/compilers; comparison between
491            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
492            generated output gives:
493       T           S           U           V
494      C D M    c        m  s        m  s        m  s        m  s
495      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
496      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
497      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
498    
499      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
500    o GAD:
501      - generated new common blocks to account for call of
502        same gad routines with differing traceridentities
503        (needed to modify tracerIdentity indices in GAD.h)
504      - generated separate common blocks for case useCubedSphereExchange
505        (Department of Futurology)
506      - parameter lists to gmredi_?transport: added tracerIdentity
507      - added new key indices to tamc.h
508    o external_fields_load:
509      - added this routine to TAF list
510      - needed to make some common blocks global and additional storing
511        along the same lines as exf package (checkpoint_lev?_directives.h)
512    o exf:
513      updated external forcing package
514      - bug fixes carried over from ecco-branch
515        (missing OBCS_OPTIONS.h in two routines)
516      - enable easy to use "no forcing".
517      - added exf I/O for atmospheric loading
518      - added exf I/O for runoff data
519      - transfered scaling between exf <-> MITgcm to exf namelist
520    o Adding new verification experiment global_with_exf.
521      This verification experiment is almost identical to the
522      global_ocean.90x40x15 experiment, except that it uses
523      the exf (and cal) package instead of the
524      external_fields_load routine (cf README file).
525    
526    checkpoint46m_post
527    o modified testscript to return -- when there are no lines of "%MON" output
528    o added new flag "quasiHydrostatic" for QH mode
529      and new routine quasihydrostaticterms()
530    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
531      New routine: mom_u_coriolis_nh()
532    o fixed sign of non-hydrostatic metric terms in u and v equations.
533      Depend on correct sign of gravitySign.
534    o added work.pc* to .cvsignore in aim directories using ifc
535    o introduced flag for controllin non-hydrostatic metric terms
536    o removed gravitySign from PARM04
537    o switched to g77/ifc from pgf77 in aim experiments
538    
539    checkpoint46l_post
540    o made convective adjustment work with pressure coordinates:
541     - changed the direction of k-loop in convective_adjustment.F for the
542       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
543     - adjusted the reference pressure k-index in convective_adjustment.F
544     - adjusted the convection condition in convect.F (in analogy to
545       calc_ivdc.F)
546     - convective_adjustment no longer computes anything on the halos
547     - removed the warnings about negative salinity from find_rho.F and
548       find_alpha.F; instead the new routine look_for_neg_salinity, called
549       at the beginning of find_rho, find_alpha, and find_beta, does a
550       check of the entire slice, if CPP-option
551       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
552    checkpoint46l_pre
553    
554    checkpoint46k_post
555    o fixed the verification/global_ocean.90x40x15 experiment:
556     - new bathymetry (the world according to A., JMC, and M.)
557     - new initial fields and forcing fields (*.bin files)
558     - new POLY3.COEFFS (for the next release one should switch to a full
559       equation of state: JMD95P or MDJWF)
560     - fixed several errors and redundancies in the data file
561     - experiment uses looped cells
562     - added matlab directory with diagnostic scripts for plotting of output
563    
564    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
565     - read AIM physics parameters from a file (data.aimphys)
566     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
567    
568    checkpoint46j_post
569    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
570    o move wVel computation at the end of the time step, in S/R integr_continuity
571    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
572    o update timeave pkg for wVel diagnostic.
573    checkpoint46j_pre
574    
575    checkpoint46i_post
576    o Clean up AIM package (and keep the results unchanged):
577      include CPP_OPTION and use IMPLICT NONE in all routines ;
578      declare all the variables _RL ; use _d 0 for all numerical constants.
579      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
580    
581    checkpoint46h_post
582    o cleaned up the use of rhoNil and rhoConst.
583      - rhoNil should only appear in the LINEAR equation of state, everywhere
584        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
585        and the dynamical equations are all divided by rhoConst
586    o introduced new parameter rhoConstFresh, a reference density of fresh
587      water, to remove the fresh water flux's dependence on rhoNil. The default
588      value is 999.8 kg/m^3
589    o cleanup up external_forcing.F and external_forcing_surf.F
590      - can now be used by both OCEANIC and OCEANICP
591    checkpoint46h_pre
592    
593     Added code to convert surface volume flux (fresh water) into
594     a mass flux when using P coordinates in the ocean (OCEANICP).
595     Note: It assumes you have set rho0=rhoConst=density of fresh water.
596    
597    checkpoint46g_post
598    o Include a new diagnostic variable phiHydLow for the ocean model
599      - in z-coordinates, it is the bottom pressure anomaly
600      - in p-coordinates, it is the sea surface elevation
601      - in both cases, these variable have global drift, reflecting the mass
602        drift in z-coordinates and the volume drift in p-coordinates
603      - included time averaging for phiHydLow, be aware of the drift!
604    o depth-dependent computation of Bo_surf for pressure coordinates
605      in the ocean (buoyancyRelation='OCEANICP')
606      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
607        Theta, Salinity, and Pressure in the parameter list. This routine is
608        presently contained in find_rho.F. This routine does not give the
609        correct density for 'POLY3', which would be a z-dependent reference
610        density.
611    o cleaned up find_rho
612      - removed obsolete 'eqn' from the parameter list.
613    o added two new verification experiments: gop and goz
614      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
615    checkpoint46g_pre
616    
617    checkpoint46f_post
618    o Enable tangent linear (forward mode) gradient checks:
619      - extended active file handling to g_... files
620      - added TANGENT_SIMULATION to theSimulationMode
621      - extended grdchk package accordingly
622    o added tangent linear setup in verification/carbon/code_ftl
623    o added adjoint setup in verification/front_relax/code_ad
624    
625    checkpoint46e_post
626    o Added new equation of state -> MDJWF
627      - EOS of McDougall et al., 2002, JAOT, submitted
628      - caveat: the equation of state is only valid for a smaller (more
629        realistic?) range of values than JMD95P/Z and UNESCO
630      - added masks to the calculation of pressure in store_pressure
631      - added more check values for density in check_eos (ini_eos.F), some of
632        the old check values are out of the range of the MDJWF-eos, so don't
633        expect perfect matches for those
634    checkpoint46e_pre
635    
636    checkpoint46d_post
637    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
638      'OCEANICP', also initialised field pressure correctly in ini_eos in the
639      case of pressure coordinates. eosType='JMD95Z' in
640      combination with buoyancyRelation='OCEANICP' now causes an error.
641    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
642      in find_alpha/beta.
643    checkpoint46d_pre
644    
645    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
646      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
647    
648    checkpoint46c_post
649    o Changes necessary for ocean in p-coordinates
650     -  Added new buoyancy relation = 'OCEANICP'
651     -  Added new parameters = gravitySign (this used to be contained inside
652        the factor dRdZ which I added when we first switched to R coordinates).
653     X GM/Redi is not compatible (yet)
654     X bottom drag and no-slip need to be debugged.
655    checkpoint46c_pre
656    
657    checkpoint46b_post
658    o Added new equation of state -> JMD95Z and JMD95P
659      - EOS of Jackett and McDougall, 1995, JAOT
660      - moved all EOS parameters into EOS.h
661      - new routines ini_eos.F, store_pressure.F
662    o Added UNESCO EOS, but not recommended because it requires
663      in-situ temperature (see JMD95)
664    o Modified formatting for knudsen2.f in utils/knudsen2 and added
665      unesco.f to be used with POLY3
666    checkpoint46b_pre
667    
668    checkpoint46a_post
669    o Added (atmospheric) pressure loading
670      - new field in FFIELDS.h, etc...
671      - new cpp flag ATMOSPHERIC_LOADING
672    o Changed hFacC to _hFacC in calc_phi_hyd.F
673    o Added SHORTWAVE_HEATING to some files for consistency
674    checkpoint46a_pre
675    
676    checkpoint46
677    further merges from release1_p5
678    o new ctrl package
679      - adopted from ECCO environment to enable optimization
680      - added Eliassen Palm fluxes to controls
681    o added Eliassen Palm flux controls to gradient check package
682    o cost package
683      - Compatible with new ctrl package
684      - added Eliassen Palm cost hooks
685      - modif's of existing cost functions
686    o Adjoint-related bug fixes in kpp:
687      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
688      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
689    o autodiff package
690      - flow directives:
691        + new for S/R do_the_model_io
692        + enhanced for S/R checkpoint
693        + new gmredi.flow
694      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
695        disable adcommon.h/g_common.h by default.
696      - fixed problem for adjoint of global_max
697    o modified verification/carbon/
698    o New setup for adjoint of global_ocean
699    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
700    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
701    o incorporated hooks for sponge layer code (external_forcing.F)
702    
703    checkpoint45d_post
704    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
705    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
706      (affects plume_on_slope "cg2d" output)
707    o add new parameter deltaTfreesurf for free-surface time stepping
708    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
709    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
710    o change phiMin in exp1 (to agree with documentation)
711    o add new flags:
712     - T,S forcing inside/outside Adams-Bashforth
713     - turn off temp,salt advection and/or forcing
714     - for each tracer, define internal flag for multiDimAdvection & A-B
715    o monitor: change definition of KE to check conservation of Energy
716    
717    checkpoint45c_post
718    o Removed f90 comments ("!")
719    o Modified initialisations to enable exf package for MITgcm
720      (without invoking ECCO_PACKAGE).
721    o modifications to gradient check package (Martin Losch)
722      - enable centered differences
723      - modified format of standard output
724    
725    checkpoint45b_post
726    o cleaned exchange calls in cg2d
727    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
728    o included CPP option SINGLE_LAYER_MODE in thermodynamics
729      to configure barotropic setup (Martin Losch)
730    o moved some initialisations within bi,bj loop in dynamics
731      (TAF flow dependency)
732    o in initialise_varia, moved call packages_init_variables
733      before convective_adjustment_init
734      (corresponding adjustment of TAF tape initialisation).
735    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
736    
737    checkpoint45a_post
738    o compute Rho over the whole domain (extend iMin,jMin indices)
739    o specific exchange for X-slice domain (case Ny=1)
740    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
741    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
742    
743    checkpoint44h_post = checkpoint45
744    o Fix to restore differentiability:
745      place at which packages_init_variables is called in
746      initialise_varia is crucial for reverse control flow.
747    o modifications in GMRedi to enable stable adjoint
748      (corresponding modif's in thermodynamics, dynamics)
749    o added missing hook for sponge layer code in external_forcing
750    o modified test cost functions
751    o storing in gad_advection (plus removal of write(0,*)!
752    o missing headers TR1.h added in convective_adjustment routines
753    o errorMessageUnit set non-equal zero in eeboot
754      (conflict on some platforms, e.g. IBM SP3)
755    o modified carbon verif.
756    
757    checkpoint44h_pre
758    o vertical grid option: allow to put the Interface at the middle between
759      2 cell-centers ; replace delZ in pkg/kpp by drF.
760    o GM Advective form: Tracers are advected using the residual transport (=
761      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
762    
763    checkpoint44g_post
764    o fix surface correction term in multiDimAdvection (affects plume_on_slope
765      results) ; ifdef missing in thermodynamics.F
766    
767    checkpoint44f_pre,checkpoint44f_post
768    o added PTRACERS package
769      This allows an arbitrary number of passive tracers to be integrated
770      forward simultaneously with the dynamicaly model.
771      + Implemented so far:
772        - basic forward algorithm (time-stepping, advection, diffusion, convection)
773        - I/O and checkpointing
774        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
775      + Not implemented so far:
776        - KPP
777        - OBCS
778      + No specific example supplied (yet) but global_ocean.90x40x15 has the
779        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
780        line in data.pkg.
781      + This package is disabled by default since it increases storage.
782    
783    
784    o testscript: added -cleanup option
785    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
786                 b) enable to filter 2D fields.
787    
788    checkpoint44e_pre,post
789    o re-wrote convective adjustment to use pre-calculated weights
790      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
791      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
792      Original calls to convect() still in place.
793    
794    chkpt44d_pre,post
795    o added missing EXCLUDE_MONITOR flags
796    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
797      (incompatible typ in MIN/MAX expressions caused problems
798      on IBM SP3)
799    o in genmake added variable MAKEDEPEND
800      plus resetting for case SunOS
801    o added timer_stats.c routine for IBM SP3
802    o removed variables in dynamics
803    !!! I forgot to create tag chkpt44d_pre !!!
804    !!! But chkpt44d_pre = chkpt44c_post    !!!
805    
806    o real fresh water flux implemented with non-linear free-surface.
807    
808    chkpt44c_pre,post
809    o few fix (mask in shap_s2, EmPmR in external_field_load,
810      USE_NATURAL_BCS in solve_for_P);
811    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
812    
813    checkpoint44b_pre/_post
814    o merge of relevant stuff from the ecco-branch:
815      - genmake: removed $S64 overwrite for case SunOS
816      - pkg/exf: update and corrections for field swapping and obcs
817      - pkg/ecco: parameter lists for the_model_main, the_main_loop
818                  harmonized between ECCO and MITgcm
819      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
820                      updated checkpointing_lev... lists for obcs
821      - model/src: minor changes in forward_step, plot_field
822                   added directive for divided adjoint in the_main_loop
823      - pkg/mdsio: added mdsio_gl_slice
824    
825    o check parameters & config (chkpt44a_pre,post)
826    o OBC and NonLin_FrSurf.
827    
828    checkpoint44
829    o fix bug in mom_vi_del2uv
830    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
831    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
832    o update AIM experiments (NCEP input files)
833    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
834    o added some stuff for AD
835    
836    checkpoint43
837    o added two new advection tests
838    o added global 4x4 degree ocean test
839    o added test of H&S94 with free surface on cube
840    o some final mods for gradient check, adjoint,...
841    
842    checkpoint42
843      Fixed AD-related problems:
844    o Store directives up-to-date with re-arranged Adams-Bashforth
845      (mainly thermodynamics.F)
846    o New store directives for multi-dim. advection schemes
847      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
848      * new common block and key passkey
849      (mainly gad_advection.F)
850    o Modified store directives for split of dynamics/thermodynamics
851      for the case ALLOW_KPP
852    o Cleaned argument list for timestep_tracer.F
853    
854    checkpoint41
855    o re-formatted/added comments in prologues of key subroutines
856      to work with protex
857    
858    checkpoint40
859    o moved calc_gs, calc_gt and calc_tr1 back to model/src
860    o added FLT (floats) package from Arne along with demo. experiment
861    o re-arranged Adams-Bashforth scheme for tracers to allow easier
862      implementation of forward-in-time forcing terms
863    o more mods for non-linear free-surface including new variable
864    o modified multi-dim method to work on cube
865    o bug fix in KPP (from DM)
866    
867    checkpoint40pre9
868    o added DST advection schemes
869    o fix MPI bug on SGI's
870    o modifications for non-linear free-surface
871    o fixed conditionals for fixed flow/passive tracer only mode
872    o added tension/strain form of stress tensor
873    o changes to commenting of arguments for TAF/TAMC
874    o added/updated many matlab scripts
875    o added multi-dimensional advection method for tracers
876      
877    checkpoint40pre8
878    o new package rw/
879      Added method for dumping intermediate local arrays:
880      mdsio_writetile - same as mdsio_writefield except works from inside
881                        bi,bj loop
882      mdsio_writelocal - same as mdsio_writetile except works for local
883                         arrays
884      write_local_r? - higher-level wrapper for mdsio_writelocal
885      Controlled by diagFreq. Defaults to zero (ie. no dumps)
886      Example given at end of mom_vecinv.F that dumps some local arrays.
887    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
888      control flux-form versus vector invariant code.
889      Switch is runtime flag vectorInvariantMomentum (defaults to false)
890      or genmake -DISABLE ...
891    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
892      (additional storing is now needed for case vecinv;
893      currently nothing implemented to switch this storing off
894      in case fluxform is used since no CPP flag available).
895    
896    checkpoint40pre7
897    o bug fix in dynamics.F
898      calc_viscosity called before k=1,Nr loop.
899    o added some #ifdef's ALLOW_PASSIVE_TRACER
900    o cleaned initialisations in ctrl_map_ini
901      related to TAF
902    
903    checkpoint40pre6
904    o split dynamics into thermodynamics & dynamics
905    o corresponding split of calc_diffusivity into
906      calc_diffusivity, calc_viscosity
907      (kpp_calc_diff, kpp_calc_visc).
908    o Added diffkr, kapgm to control variables
909    o bug fix in gmredi_slope_limit for ldd97
910    
911    checkpoint40pre5
912    o proper initialization of Adams-Bashforth time stepping
913      + uses forward step for very first step of model (iter=0)
914    o re-generated *all* output since almost all output is modified by this
915      change (sorry but we've been putting this one off for about 2 years)
916      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
917        *not* regenerated since they are already out of date and I don't
918        want to create the impression that they are suddenly working.
919    o removed KAP stuff for DEC's
920    o modified/added many .cvsignore files in */code and */input
921    o added new expt "solid-body.cs-32x32x1"
922      + this uses an alternative form of ini_curvilinear_grid.F which
923        is not necessarily any better than the current one...
924    
925    checkpoint40pre4
926    o added re-initialisations of utrans,vtrans,rtrans in
927      calc_common_factors which are crucial for TAF.
928    o extended iMin,jMin range for calc_common_factors,
929      calc_diffusivity
930    o added option ALLOW_PASSIVE_TRACER
931    o a few minor updates and fixes
932    
933    checkpoint40pre3
934    o created calc_gtr1.F for gad package
935    o split the_main_loop and re-introduced forward_step
936    o some recomputations of nIter0 for TAMC
937    
938    checkpoint40pre2
939    o Updated to latest branch of AJA, JMC
940    o Added gradient check package
941    o Added routines for passive tracer handling
942    o Added carbon sequestration sensitivity experiment
943    
944    checkpoint39
945     o Modifications and fixes to support TAMC
946       (mainly missing or wrong directives)
947     o Corrected common blocks when fooling TAMC to produce adjoint I/O
948       in addummy_in_stepping
949     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
950     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
951     o Included following packages:
952       cal: calendar
953       exf: external forcing
954       ecco: essential routines to control use of cal, exf
955             (NB: this is not the full ECCO environment)
956     o disabled some packages by default in genmake
957    
958    checkpoint38
959     o see notes_c37_adj.txt
960     o corrected wrong layer index in external_forcing_t
961     o replaced the_main_loop/forward_step by the_main_loop
962     o removed forceoutput from write_state
963       (replaced criteria for initial/final state)
964     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
965    
966    checkpoint37
967     o mdsio.F routine split and packaged in pkg/mdsio
968       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
969        used unless genmake -disable=mdsio)
970     o allow a more precise surface-geopotential gradient for the atmosphere
971       taking into account the change in space of Alpha (=1/rho) at the surface.
972     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
973       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
974     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
975       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
976       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
977     o Time-Average diagnostics defined as a pseudo package "timeave".
978     o pickup files : old pickup (before c35) did not work with new code (c35
979       and after) unless activating 2 commented lines in initialise-varia.
980     o Non-Hydrostatic pickup file Pb fixed.
981     o bug with Rigid-lid version (since c35) fixed.  
982    
983    checkpoint36
984     o implement Crank-Nickelson barotropic time-stepping
985     o recover Time-Average diagnostics
986     o fix Pb in checkpoint (PR#19)
987     o AIM become a standard package ; clean unused CPP_kees
988    
989    checkpoint35
990     o subtantial rewrite of dynamics.f
991     o allows staggered time-stepping
992     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
993     o added bottom drag (linear + quadratic)
994    
995    checkpoint34
996     o Modified exchange routines for correct reverse simulation.
997     o Added verification output to comply with bug fix in impldiff.F
998       as of c33 (exp2, natl_box).
999     o Corrected store directives in dynamics.F
1000     o Corrected array boundaries in impldiff.F
1001     o Corrected array dimensions in gmredi.
1002       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
1003     o Added routine GLOBAL_SUM_INT to global_sum.F
1004     o Added mdsio_gl.F for ECCO purposes.
1005    
1006    checkpoint33
1007     o Fixed bug in lower BC in impldiff.F
1008     o Fixed confusion about units of forcing arrays in FFIELDS.h
1009       namely Fu,Fv,Qnet,Qsw,EmPmR:
1010       - Removed verification/natl_box/code/external_fields_scale.F
1011         (did not differ from that in model/src)
1012       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
1013         (see FFIELDS.h for description)
1014       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
1015         kpp_calc.F and kpp_transport_t.F
1016       - Removed model/src/external_fields_scale.F and calls to it
1017       - verification/natl_box uses flux data with "atmospheric" sign so
1018         a special version of external_fields_load.F is used to
1019         change the data as it's read in. This way, the arrays
1020         have the right units and signs at all times tha a user could
1021         possibly use them.
1022     o Corrected genmake to delete a temporary file during configuration
1023    
1024    checkpoint32
1025     o Scaling of forcing fields moved from external_forcing.F to
1026       external_fields_scale.F, called directly after loading fields.
1027     o Surface relaxation terms added to surface tendency fields in
1028       extra subroutine.
1029     o impldiff.F changed to avoid storing by TAMC of huge intermediate
1030       fields.
1031     o Changes in GMRedi to comply with packaging structure.
1032     o Modifications and bug fixes in KPP package.
1033     o Verification experiment for KPP added (verification/nat_box/)
1034    
1035    checkpoint31
1036     o Packages interface brought in line with defined standard
1037       -> new routines packages_...F
1038       -> changes in initialise_fixed.F, initialise_varia.F
1039       -> enables initialisation interface for ECCO package
1040     o Rescaling of external forcing fields immediately after read
1041       (removed from external_forcing.F)
1042       -> new: surface_fields_scale.F
1043       -> affects ini_foorcing.F, external_fields_load.F
1044     o Computation of surface tendencies before tendency updates.
1045       -> new: external_forcing_surf.F
1046     o Change of variable names useGMRedi, useKPP, useECCO
1047     o Further changes in dynamics.F, impldiff.F for TAMC
1048     o Tested for experiments 0, 2, 4.
1049       - not yet tested for GMRedi.
1050       - not yet tested for KPP.
1051    
1052    checkpoint30
1053     o Updates for OBCs
1054     o New experiment for test OBCs (internal_wave)
1055     o New output.txt in verification/exp4/results/
1056     o Updates for KPP: calculation of viscosity corrected, new variables
1057       kpp_dumpFreq and kpp_taveFreq
1058     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1059       and entry for T90 in genmake
1060    
1061    checkpoint29
1062     o packaged KPP and GM/Redi
1063    
1064    checkpoint28
1065     o Corrected initialization of hFacMin for difference vertical coordinates
1066     o Modified calculation of partial cell thickness to more robust algorithm
1067     o config_summary.F: replaced write_1D_... by write_0D_...
1068       read_write.F: added subroutines write_0D_...
1069     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1070       included some initialisations required for TAMC.
1071     o routine calc_isoslopes: modified sqrt computation to make it
1072       differentiable for zero argument.
1073     o routines dynamics, impldiff:
1074       included store directives and tape key computations required for TAMC.
1075     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1076    
1077    checkpoint27
1078     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1079       formulation works properly with variable resolution.
1080     o restructured the calling tree between the_model_main() and dynamics()
1081     o split initialise() into initialise_fixed() and initialise_varia()
1082     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1083       in new routine ini_psurf()
1084    
1085    checkpoint26
1086     o moved some #ifdef in optional routines to encompass everything
1087       except the argument declarations. This was using up some memory.
1088     o fixed macros like _ADT to work with both versions of Linux cpp
1089     o cleaned up some unused and uninitialized variables
1090       (helps when debugging with strict compile options)
1091     o split up CPP_EEOPTIONS.h into options and macros
1092       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1093     o patch for 2 processor JAM mode
1094    
1095    checkpoint25
1096     o updates for OBCs and NH
1097     o dramatically reduced memory usage
1098     o added "JAM" routines for use on Artic network
1099     o parameterization of convection by implicit vertical diffusion
1100     o added a diagnostic of convective index
1101     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1102       (this is was partly for OBCs and NH but also in anticipation of
1103        an explicit free-surface option)
1104     o initial state input files for U and V
1105    
1106    checkpoint24
1107     o Removed some spurious "REAL"s
1108     o Updated KPP to latest version from JPL
1109     o Added a COS(latitude) in horizontal viscosity
1110    
1111    checkpoint23
1112     o Added del^4 diffusion for salt and temperature
1113     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1114    
1115    checkpoint22
1116     o Made many small changes: implicit none, format(i5), etc...
1117     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1118    
1119    checkpoint21
1120     o Introduced new I/O package that supports direct-access records (mdsio.F)
1121     o Split-up mid-level I/O routines
1122     o Updated input data for experiments 0,1,2,4 and 5
1123     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1124    
1125    checkpoint20
1126     o Tidied up open-boundaries some more
1127     o Added non-hydrostatic code
1128     o Fixed some input data
1129     o Modified MPI start-up to work in "coupled" context.
1130    
1131    checkpoint19
1132     o Tidied up directory structure for verification experiments.
1133     o Added new code for open boundaries.
1134     o Corrected advective terms near boundaries.
1135     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1136     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1137     o Split default parameters out of ini_parms.F into set_defaults.F.
1138    
1139    checkpoint18
1140     o Further changes for optional code generation with
1141       CPP - ugh!
1142    
1143    checkpoint17
1144     o Beginning to incorporating modularity
1145       for supporting atmos. and ocean configs.
1146     o Small changes for TAMC complinace
1147     o New ultra simple test case. Barotropic box
1148       configuration "exp0".
1149    
1150    checkpoint16
1151     o Minor changes to exchange routines to support
1152       accumulation in reverse mode. Adjoint of an
1153       assignment is an addition.
1154     o Changes to support compilation by TAMC (LR(1)
1155       syntax) and by g77 under Linux ( 72 character
1156       limit ).
1157    
1158    checkpoint15
1159     Rewrote exchange routines to allow
1160     o General tile <-> tile connectivity.
1161     o TAMC reverse mode flag ( is this really needed? )
1162     o Variable width overlap and exchange region widths.
1163     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1164       shmput/shmget, VIA, SYSV shmem and every other cool
1165       communication method.
1166    
1167    checkpoint14
1168     Consistent isomorphism chages made. These allow dynamical core
1169     to support both pressure and meters as a vertical coordinate.
1170    
1171    checkpoint13
1172     Release which corrects global_max problem and a couple
1173     of KGM time-averaging diagnostic errors. Also contains
1174     a double-gyre experiment setup as well as the baseline
1175     4 degree global template. The double gyre template is
1176     organised to allow it to be applied automatically to
1177     the baseline configuration.
1178    
1179    branch-point-rdot
1180     A few tidy-ups have been made bt the real point of this
1181     check-point (excuse the pun) is to allow a branch to be
1182     made for the purposes of adding the rDot alterations.
1183     I don't want to commit the rDot to the main-trunk until
1184     we've actually tested it...
1185    
1186    checkpoint12
1187     Tidy up and added generic genmake script (formerly
1188     configure script).
1189     Released to testers.
1190    
1191    checkpoint11
1192     Re-arranged initialise() and introduced ini_vertical_grid()
1193     and ini_masks_etc().
1194    
1195    checkpoint10
1196     Introduced the configure script.
1197     Separated out the diags package.
1198     Added template for writing time-averages of tile/intermediate quantities.
1199     Updated SIZE.h in exp2 and made the data big-endian.
1200    
1201    checkpoint9
1202     MPI fix. Filename changes (meta/data). salbin*y stuff.
1203     General tidy-up.
1204     SST.bin SSS.bin added to verification/exp2
1205    
1206    checkpoint8
1207     Inludes time-dependant forcing and time-averaging.
1208     Works at 4x4 and 2.8125x2.8125 global
1209    
1210    checkpoint7-4degree-ref
1211     Branch from checkpoint7. Released for application to
1212     global modeling and general modeling - process studies, regional
1213     model etc..
1214     Configured for verification/exp2 - 4 degree global, two process.
1215    
1216    checkpoint7
1217     Created by cnh
1218     Simple 4 degree global simulation
1219     configuration.
1220     Includes climatological wind,
1221     hydrography, bathymetry etc
1222     Does not include Heat Flux and E-P
1223    
1224  checkpoint6  checkpoint6
1225   Created by cnh   Created by cnh
1226   merged checkpoint5 with CD and   merged checkpoint5 with CD and

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