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revision 1.1 by cnh, Tue May 26 14:38:05 1998 UTC revision 1.168 by stephd, Wed Jun 25 21:17:05 2003 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint51a_post
7    o added code for biogeochemistry package
8      - new pkgs: dic, gchem
9      - new subroutine in ptracers
10    o modify code for biogeo packages
11      - in model/src and pkg/ptracers
12    
13    checkpoint51
14    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
15      - autodiff, ctrl, exf, grdchk, seaice
16      kept separate packages
17      - cost, ecco, obcs
18    o updating verification/internal_wave, verification/lab_sea
19      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
20    
21    checkpoint50i_post
22    o Preparing next differentiable checkpoint and sync
23      of MAIN vs. ecco-branch
24      - 1st step: this one is differentiable
25      - 2nd step: next(! not this) checkpoint will have updated packages
26                  from ecco-branch)
27    
28    checkpoint50h_post
29    o new package "land": provide surface BC for AIM.
30    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
31    o AIM: use true log-P extrapolation for near surface temp (= as in
32        F.Molteni paper) ; update aim.5l_cs output.
33    o New variable in PARM03 for more flexible pickups
34    o somewhat cleaned package initialisation sequence for
35      ctrl/ cost/ ecco/ in packages_... routines
36    
37    checkpoint50g_post
38    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
39      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
40      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
41        made the default because of faster convergence than ADI
42    
43    checkpoint50f_post
44    o exf totally restructured
45      - replaced all exf_set_ routines by one generic exf_set_gen.F
46        and made sure it's still differentiable
47      - split exf_getffields.F into new exf_bulkformulae.F
48      - exf_inscal_/exf_outscal_ suffixes consistent with field names
49      - updated adjoint/makefile and relevant verif. accordingly
50    
51    checkpoint50f_pre
52     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
53          + change Evap over land. (update aim.5l_cs output)
54     o added missing .cvsignores and made uniform across expts
55     o changed configuration of tidal_basin_2d expt
56     o added pkg/debug functions for tracing code in fatal crashes
57     o tidied pkg/monitor to use MONITOR_OPTIONS.h
58     o new fn in pkg/monitor to stop model if solution grows too big
59     o removed lots of single quotes from comments
60    
61    checkpoint50e_post
62    o make KPP work with PTRACERS
63     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
64       nearly a copy of kpp_transport_s
65     - there is no analogue to SurfaceTendencyS, so I have to use
66       gPtr(of the surface layer) instead
67    o add a new platform SunFire+mpi (SunFire 15000) to genmake
68    checkpoint50e_pre
69    
70    checkpoint50d_post
71    o change kpp output from multiple-record state files to single-record state
72      files analogous to write_state.F
73    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
74      analogous to the cg2d-related output.
75    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
76      so that writing to internal file fn (with length 512) fails.
77    checkpoint50d_pre
78    
79    checkpoint50c_post
80    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
81    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
82    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
83    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
84    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
85    
86    checkpoint50c_pre
87    Merging from release1_p13:
88    o bug fix for pkg/seaice dynamic solver
89    o Added SEAICE_initialHEFF to pkg/seaice
90    
91    checkpoint50b_post
92    o store u*,v* in gU,V instead of in guNm1,gvNm1
93    o in order to put the momForcing out of the Adams-Bashforth:
94      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
95      to timestep.F
96    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
97    o re-generate output for highly sensitive test-exp:
98       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
99    
100    checkpoint50b_pre
101    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
102    o corrected CPP option mismatch in exf_Bulk... functions for case
103      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
104    
105    checkpoint50a_post
106    o Bug fix for merging between c50 and KPP.
107      ikey was passed from thermodynamics to kpp_calc via
108      common block rather than being recomputed in kpp_calc,
109      in contradiction with new key itdkey.
110      New key ikppkey created, and tamc.h headers updated.
111    
112    checkpoint50
113    - 2nd step of merge with ecco-branch:
114      merge changes in ecco-branch back into main trunk
115    - bug fix in find_alpha
116    - more storing in gmredi_calc_tensor.F, kpp_routines.F
117    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
118    - merged some sliced AD support routines
119    
120    checkpoint49
121    merged from ecco-branch:
122    o exf:
123      - Enable initialisation of forcing fields to constant
124        (runtime) values.
125      - in exf_getffields.F
126        Reduce i-/j-loop to interior domain, discarding overlaps.
127        That also fixes wrong TAF-key computations for key_1, key_2
128        with bulf formulae.
129      - exf_init.F modify #ifdef for exf_init_evap
130      - exf_getffieldrec.F, ctrl_getrec.F
131        The following INT-usages are not safe:
132          fldsecs  = int(fldsecs/fldperiod)*fldperiod
133          fldcount = int(fldsecs/fldperiod) + 1
134        and were modified.
135    o autodiff: checkpoint_lev...
136      - updated storing for bulk formulae (some arrays were missing)
137      - added state for seaice package
138      - synchronized with main branch
139    o DIVA:
140      Modif.s in
141      - the_main_loop.F
142      - the_model_main.F
143      and added cost_final_restore.F cost_final_store.F
144      o With these changes, it is possible to fully separate
145        the first forward run to compute the cost function (mdthe_main_loop)
146        and adjoint runs over individual DIVA intervals (adthe_main_loop)
147        into separate model executions.
148        This enables better tuning of DIVA to given queue sizes.
149      o Loss of cost function value in consecutive DIVA runs is
150        fixed by storing to 'costfinal' file.
151      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
152        beginning/end of adjoint integration is accounted for.
153      The current changes apply to TAF-1.4.26.
154      TAF has one remaining bug, requiring one manual change
155      (see MITgcm manual).
156    o cal: synchronized between MAIN and ecco-branch
157    
158    checkpoint48i_post
159    o Changes to restore differentiability of code w.r.t. previous tag
160      (mostly adding new routines to make list and replacing
161      pressure by totPhiHyd).
162    o Updated and merged grdchk package
163      - has both ADM and TLM checks
164      - works for single- and multi-proc.
165      - output cleaned
166      - worked successfully for parallel DIVA
167    o genmake:
168      - Adding -platform=SP4
169      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
170    o Modif. for DIVA:
171      ctrl_unpack should not be called in intermediate DIVA interval.
172      (similar thing would apply for active files such as
173      tbar, sbar, psbar, which should not be reinitialised;
174      only relevant for ecco-branch)
175    
176    checkpoint48h_post
177    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
178    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
179    o Added SEAICE_initialHEFF to pkg/seaice
180    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
181    
182    checkpoint48g_post
183    --- EOS:
184    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
185      store total Potential in totPhyHyd for diagnostics & EOS.
186    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
187    --- Pressure/geopotential gradient:
188    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
189    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
190      ( changes results of global_ocean_pressure )
191    o NLFS + z-coord.: add eta*Rho' contribution.
192    o accurate phiHyd when using interface-W at the middle between 2 centers
193     ( changes results of ideal_2D_oce )
194    o includes r* 2nd term in potential gradient.
195    
196    checkpoint48f_post
197    Merging from release1_p12:
198    o Modifications for using pkg/exf with pkg/seaice
199      - improved description of the various forcing configurations
200      - added basic radiation bulk formulae to pkg/exf
201      - units/sign fix for evap computation in exf_getffields.F
202      - updated verification/global_with_exf/results/output.txt
203    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
204      (SBO) core products, including oceanic mass, center-of-mass,
205      angular, and bottom pressure (see pkg/sbo/README.sbo).
206    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
207      to avoid negative values in shallow regions.
208      - updated verification/natl_box/results/output.txt
209      - updated verification/lab_sea/results/output.txt
210    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
211    o Added useSingleCpuIO option (see PARAMS.h).
212    o Updated useSingleCpuIO option in mdsio_writefield.F to
213      work with multi-field files, e.g., for single-file pickup.
214    o pkg/seaice:
215      - bug fix in growth.F: QNET for no shortwave case
216      - added HeffFile for specifying initial sea-ice thickness
217      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
218    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
219      kpp_transport_t.F, forward_step.F, and the_main_loop.F
220    o pkg/seaice:
221      - adjoint-friendly modifications
222      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
223    
224    checkpoint48e_post
225    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
226    o dynamics: change definition of computational domain & adapt mom_fluxform
227      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
228    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
229        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
230        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
231        global_ocean.90x40x15 global_with_exf global_ocean_pressure
232        inverted_barometer solid-body.cs-32x32x1
233      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
234    
235    checkpoint48d_post
236    o in preparation for r*:
237     a) use pre-computed gradient of hydrostatic potential:
238        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
239     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
240        => affects results of glob_oce_pressure (different truncation error)  
241      update output.txt of ideal_2D_oce & global_ocean_pressure
242    
243    checkpoint48d_pre
244    o in preparation for r*:
245      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
246      pass the 2 comp. of the grad. as arguments to momentum S/R.
247      but for the moment, only used if it does not change the results.
248    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
249    
250    checkpoint48c_post
251    Modifications in treatment of initial flux forcing controls
252    to avoid extra storing of flux fields.
253    
254    checkpoint48c_pre
255    o Added tidal_basin_2d experiment (currently 1D!)
256    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
257    
258    checkpoint48b_post
259    o r* coordinate added in #ifdef NONLIN_FRSURF block.
260     (modification to pressure gradient not yet implemented)
261    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
262      (for U & V) that are used for vertical advection of momentum.
263    
264    checkpoint48a_post
265    o In preparation for r*, use temp. array to compute vertical transport
266       in flux-form momentum pkg. => change results of few test-exp.
267      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
268                        lab_sea, natl_box & plume_on_slope
269    
270    checkpoint48
271    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
272    
273    checkpoint47j_post
274    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
275    o moved adexch from forward_step to addummy_in_stepping
276    o added exch in ctrl_map_...
277    o aveFreq.=0. at end of cost_final to avoid overwrite in
278      reverse checkpointing loop
279    o Yet more changes in gmredi:
280      * adgmredi_calc_tensor
281        avoiding all recomputation of gmredi_slope_limit
282      * adgmredi_x/y/rtransport
283        added flag for excessive storing to avoid recomp. of
284        u/v/rtans, dTdx/y/z
285        -> this is not really necessary and very memory-consuming
286      * adgmredi_slope_psi:
287        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
288      * gmredi_slope_limit
289        re-activated full calculation of taperfct for case 'ac02'
290    o updating verification/ adjoints of carbon, global_ocean.90x40x15
291    
292    checkpoint47i_post
293    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
294    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
295      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
296    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
297    o gmredi: fix few bugs.
298    
299    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
300    This will be a good checkpoint to plug into the ecco-branch.
301    o few modif.'s to get latest version adjointed
302      (mainly kick out code in ini_linear_phisurf)
303    o modif's to run adjoint with exactConserv
304    o case GM_BOLUS_ADVEC should be cleaned
305      S/R gmredi_slope_psi should be cleaned
306    o verification/carbon now has exactConserv=.TRUE.
307    
308    checkpoint47g_post
309    o time-average AIM output: becomes independent from statvars time-average
310      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
311    o After TAF bug fix:
312      Tested adjoint of gmredi package.
313      Tests were done with checkpoint47 rather than with latest
314      checkpoint47f_post since the latter is broken for the adjoint
315      verification/carbon/ contains both ADM and TLM gradient checks.
316    Here they are, before they get changed/lost/stolen.
317    Mostly modif.'s to fix numerical sensitivities.
318    Gradient checks OK for
319    - GM_taper_scheme:
320      * clipping
321      * ac02
322      * linear
323      * glw91
324      * dm95
325      * ldd97
326    - GMREDI_OPTIONS:
327      * GM_VISBECK_VARIABLE_K
328      * GM_NON_UNITY_DIAGONAL
329      * GM_EXTRA_DIAGONAL
330      * GM_BOLUS_ADVEC
331    in conjunction with data.gmredi parameters to be checked in
332    in a few minutes under verification/carbon/code/
333    
334    checkpoint47f_post
335    Merging from release1_p10:
336    o modifications for using pkg/exf with pkg/seaice
337      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
338        and SEAICE_EXTERNAL_FLUXES
339      - pkg/exf CPP options EXF_READ_EVAP and
340        EXF_NO_BULK_COMPUTATIONS
341      - usage examples are Experiments 8 and 9 in
342        verification/lab_sea/README
343      - verification/lab_sea default experiment now uses
344        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
345    
346    checkpoint47e_post
347    o created a tag prior to creating a branch
348    
349    checkpoint47d_post
350    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
351      at the bottom boundary had an erroneous half slip boundary condition
352    o added bottom drag and no slip boundary condition capabilities to
353      oceanic pressure coordinates code
354    o added new verification experiment global_ocean_pressure, this experiment is
355      also described in the tutorial section of the manual
356    checkpoint47d_pre
357    
358    checkpoint47c_post
359    o Added a verification experiment for a global cubed-sphere ocean run
360      -  verification/global_ocean.cubed32x32x30
361      -  uses pkg/therm_seaice and pkg/bulk_forcing
362    
363    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
364    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
365      when using P-coordinate; only implemented for atmospheric config.
366    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
367      NOTES: requires option NONLIN_FRSURF to be "#define".
368    o update advect_xz/results/output.txt (left from checkpoint44g_post)
369    
370    checkpoint47b_post
371    Merging from release1_p9:
372    o pkg/seaice
373      - removed GOTO's and added taf directives
374      - double precision constants to reduce the g77 (Linux)
375        to F77 (SGI) differences reported in release1_p8
376    o tools/genmake
377      - added SGI options
378    o verification/testscript
379      - updated to that of checkpoint47a_post
380    o verification/global_ocean.90x40x15/input/eedata
381      - modified for SGI f77 compatibility
382    o verification/lab_sea
383      - added description of sea-ice model
384      - added missing matlab routines
385      - added test of thermodynamics parallelization
386    
387    checkpoint47a_post
388    o new pkg: aim_v23
389     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
390       for now, keep the same surface forcing as before.
391     - Part-Cell implemented into AIM; check that Heat & Water are conserved
392     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
393     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
394    o add diagnostic of surface correction term in monitor output
395    
396    o bulk_force and therm_seaice
397    - Two packages:  bulk_force (Bulk forcing)
398      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
399    - Earlier integration from Stephaine Dutkiewicz
400      and Patrick Heimbach.
401    - Two ifdef statements for compile time,
402       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
403    
404    checkpoint47
405    differentiable version of checkpoint46n_post
406    o bug fix in quasihydrostaticterms
407    o * "clean" adjoint code (in terms of extensive recomputations)
408        can now be obtained for all GMREDI options (i.e. for
409        - GM_VISBECK_VARIABLE_K
410        - GM_NON_UNITY_DIAGONAL
411        - GM_EXTRA_DIAGONAL
412        - GM_BOLUS_ADVEC )
413      * However, wrong gradient check problem remains unsolved.
414      * New CPP options have been introduced for different
415        tapering schemes
416    o external_fields_load now part of differentiation list
417    o pressure needs multiple storing;
418      would be nice to have store_pressure at beginning or
419      end of forward_step, e.g. by having phiHyd global (5-dim.)
420      (NB: pressure is needed for certain cases in find_rho,
421      which is also invoked through convective_adjustment).
422    o recomputations in find_rho for cases
423     'JMD95'/'UNESCO' or 'MDJWF' are OK.
424    o #define ATMOSPHERIC_LOADING should be differentiable
425    o ini_forcing shifted to begining of initialise_varia
426    o Incorporating QNVS line search routines into MITgcm
427      (this is separate code, and therefore not under pkg)
428      lsopt/, optim/
429    o Updated verification/carbon/
430      - #define GM_VISBECK_VARIABLE_K
431      - GM_taper_scheme    = 'ldd97'    
432    
433    checkpoint46n_post
434    Merging from release1_p8:
435    o verification/natl_box:
436      updating new external_fields_load routine
437    o New package: pkg/seaice
438      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
439      The sea-ice code is based on Hibler (1979-1980).
440      Two sea-ice dynamic solvers, ADI and LSR, are included.
441      In addition to computing prognostic sea-ice variables and diagnosing
442      the forcing/external data fields that drive the ocean model,
443      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
444      The implied surface heat flux is then stored in variable
445      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
446      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
447      non-local transport term.  Because this call precedes model
448      thermodynamics, temperature under sea-ice may not be "exactly" at
449      the freezing point by the time theta is dumped or time-averaged.
450      N.B.: fairly large differences in accuracy occur across
451            different platforms/compilers; comparison between
452            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
453            generated output gives:
454       T           S           U           V
455      C D M    c        m  s        m  s        m  s        m  s
456      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
457      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
458      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
459    
460      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
461    o GAD:
462      - generated new common blocks to account for call of
463        same gad routines with differing traceridentities
464        (needed to modify tracerIdentity indices in GAD.h)
465      - generated separate common blocks for case useCubedSphereExchange
466        (Department of Futurology)
467      - parameter lists to gmredi_?transport: added tracerIdentity
468      - added new key indices to tamc.h
469    o external_fields_load:
470      - added this routine to TAF list
471      - needed to make some common blocks global and additional storing
472        along the same lines as exf package (checkpoint_lev?_directives.h)
473    o exf:
474      updated external forcing package
475      - bug fixes carried over from ecco-branch
476        (missing OBCS_OPTIONS.h in two routines)
477      - enable easy to use "no forcing".
478      - added exf I/O for atmospheric loading
479      - added exf I/O for runoff data
480      - transfered scaling between exf <-> MITgcm to exf namelist
481    o Adding new verification experiment global_with_exf.
482      This verification experiment is almost identical to the
483      global_ocean.90x40x15 experiment, except that it uses
484      the exf (and cal) package instead of the
485      external_fields_load routine (cf README file).
486    
487    checkpoint46m_post
488    o modified testscript to return -- when there are no lines of "%MON" output
489    o added new flag "quasiHydrostatic" for QH mode
490      and new routine quasihydrostaticterms()
491    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
492      New routine: mom_u_coriolis_nh()
493    o fixed sign of non-hydrostatic metric terms in u and v equations.
494      Depend on correct sign of gravitySign.
495    o added work.pc* to .cvsignore in aim directories using ifc
496    o introduced flag for controllin non-hydrostatic metric terms
497    o removed gravitySign from PARM04
498    o switched to g77/ifc from pgf77 in aim experiments
499    
500    checkpoint46l_post
501    o made convective adjustment work with pressure coordinates:
502     - changed the direction of k-loop in convective_adjustment.F for the
503       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
504     - adjusted the reference pressure k-index in convective_adjustment.F
505     - adjusted the convection condition in convect.F (in analogy to
506       calc_ivdc.F)
507     - convective_adjustment no longer computes anything on the halos
508     - removed the warnings about negative salinity from find_rho.F and
509       find_alpha.F; instead the new routine look_for_neg_salinity, called
510       at the beginning of find_rho, find_alpha, and find_beta, does a
511       check of the entire slice, if CPP-option
512       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
513    checkpoint46l_pre
514    
515    checkpoint46k_post
516    o fixed the verification/global_ocean.90x40x15 experiment:
517     - new bathymetry (the world according to A., JMC, and M.)
518     - new initial fields and forcing fields (*.bin files)
519     - new POLY3.COEFFS (for the next release one should switch to a full
520       equation of state: JMD95P or MDJWF)
521     - fixed several errors and redundancies in the data file
522     - experiment uses looped cells
523     - added matlab directory with diagnostic scripts for plotting of output
524    
525    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
526     - read AIM physics parameters from a file (data.aimphys)
527     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
528    
529    checkpoint46j_post
530    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
531    o move wVel computation at the end of the time step, in S/R integr_continuity
532    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
533    o update timeave pkg for wVel diagnostic.
534    checkpoint46j_pre
535    
536    checkpoint46i_post
537    o Clean up AIM package (and keep the results unchanged):
538      include CPP_OPTION and use IMPLICT NONE in all routines ;
539      declare all the variables _RL ; use _d 0 for all numerical constants.
540      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
541    
542    checkpoint46h_post
543    o cleaned up the use of rhoNil and rhoConst.
544      - rhoNil should only appear in the LINEAR equation of state, everywhere
545        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
546        and the dynamical equations are all divided by rhoConst
547    o introduced new parameter rhoConstFresh, a reference density of fresh
548      water, to remove the fresh water flux's dependence on rhoNil. The default
549      value is 999.8 kg/m^3
550    o cleanup up external_forcing.F and external_forcing_surf.F
551      - can now be used by both OCEANIC and OCEANICP
552    checkpoint46h_pre
553    
554     Added code to convert surface volume flux (fresh water) into
555     a mass flux when using P coordinates in the ocean (OCEANICP).
556     Note: It assumes you have set rho0=rhoConst=density of fresh water.
557    
558    checkpoint46g_post
559    o Include a new diagnostic variable phiHydLow for the ocean model
560      - in z-coordinates, it is the bottom pressure anomaly
561      - in p-coordinates, it is the sea surface elevation
562      - in both cases, these variable have global drift, reflecting the mass
563        drift in z-coordinates and the volume drift in p-coordinates
564      - included time averaging for phiHydLow, be aware of the drift!
565    o depth-dependent computation of Bo_surf for pressure coordinates
566      in the ocean (buoyancyRelation='OCEANICP')
567      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
568        Theta, Salinity, and Pressure in the parameter list. This routine is
569        presently contained in find_rho.F. This routine does not give the
570        correct density for 'POLY3', which would be a z-dependent reference
571        density.
572    o cleaned up find_rho
573      - removed obsolete 'eqn' from the parameter list.
574    o added two new verification experiments: gop and goz
575      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
576    checkpoint46g_pre
577    
578    checkpoint46f_post
579    o Enable tangent linear (forward mode) gradient checks:
580      - extended active file handling to g_... files
581      - added TANGENT_SIMULATION to theSimulationMode
582      - extended grdchk package accordingly
583    o added tangent linear setup in verification/carbon/code_ftl
584    o added adjoint setup in verification/front_relax/code_ad
585    
586    checkpoint46e_post
587    o Added new equation of state -> MDJWF
588      - EOS of McDougall et al., 2002, JAOT, submitted
589      - caveat: the equation of state is only valid for a smaller (more
590        realistic?) range of values than JMD95P/Z and UNESCO
591      - added masks to the calculation of pressure in store_pressure
592      - added more check values for density in check_eos (ini_eos.F), some of
593        the old check values are out of the range of the MDJWF-eos, so don't
594        expect perfect matches for those
595    checkpoint46e_pre
596    
597    checkpoint46d_post
598    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
599      'OCEANICP', also initialised field pressure correctly in ini_eos in the
600      case of pressure coordinates. eosType='JMD95Z' in
601      combination with buoyancyRelation='OCEANICP' now causes an error.
602    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
603      in find_alpha/beta.
604    checkpoint46d_pre
605    
606    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
607      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
608    
609    checkpoint46c_post
610    o Changes necessary for ocean in p-coordinates
611     -  Added new buoyancy relation = 'OCEANICP'
612     -  Added new parameters = gravitySign (this used to be contained inside
613        the factor dRdZ which I added when we first switched to R coordinates).
614     X GM/Redi is not compatible (yet)
615     X bottom drag and no-slip need to be debugged.
616    checkpoint46c_pre
617    
618    checkpoint46b_post
619    o Added new equation of state -> JMD95Z and JMD95P
620      - EOS of Jackett and McDougall, 1995, JAOT
621      - moved all EOS parameters into EOS.h
622      - new routines ini_eos.F, store_pressure.F
623    o Added UNESCO EOS, but not recommended because it requires
624      in-situ temperature (see JMD95)
625    o Modified formatting for knudsen2.f in utils/knudsen2 and added
626      unesco.f to be used with POLY3
627    checkpoint46b_pre
628    
629    checkpoint46a_post
630    o Added (atmospheric) pressure loading
631      - new field in FFIELDS.h, etc...
632      - new cpp flag ATMOSPHERIC_LOADING
633    o Changed hFacC to _hFacC in calc_phi_hyd.F
634    o Added SHORTWAVE_HEATING to some files for consistency
635    checkpoint46a_pre
636    
637    checkpoint46
638    further merges from release1_p5
639    o new ctrl package
640      - adopted from ECCO environment to enable optimization
641      - added Eliassen Palm fluxes to controls
642    o added Eliassen Palm flux controls to gradient check package
643    o cost package
644      - Compatible with new ctrl package
645      - added Eliassen Palm cost hooks
646      - modif's of existing cost functions
647    o Adjoint-related bug fixes in kpp:
648      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
649      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
650    o autodiff package
651      - flow directives:
652        + new for S/R do_the_model_io
653        + enhanced for S/R checkpoint
654        + new gmredi.flow
655      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
656        disable adcommon.h/g_common.h by default.
657      - fixed problem for adjoint of global_max
658    o modified verification/carbon/
659    o New setup for adjoint of global_ocean
660    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
661    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
662    o incorporated hooks for sponge layer code (external_forcing.F)
663    
664    checkpoint45d_post
665    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
666    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
667      (affects plume_on_slope "cg2d" output)
668    o add new parameter deltaTfreesurf for free-surface time stepping
669    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
670    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
671    o change phiMin in exp1 (to agree with documentation)
672    o add new flags:
673     - T,S forcing inside/outside Adams-Bashforth
674     - turn off temp,salt advection and/or forcing
675     - for each tracer, define internal flag for multiDimAdvection & A-B
676    o monitor: change definition of KE to check conservation of Energy
677    
678    checkpoint45c_post
679    o Removed f90 comments ("!")
680    o Modified initialisations to enable exf package for MITgcm
681      (without invoking ECCO_PACKAGE).
682    o modifications to gradient check package (Martin Losch)
683      - enable centered differences
684      - modified format of standard output
685    
686    checkpoint45b_post
687    o cleaned exchange calls in cg2d
688    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
689    o included CPP option SINGLE_LAYER_MODE in thermodynamics
690      to configure barotropic setup (Martin Losch)
691    o moved some initialisations within bi,bj loop in dynamics
692      (TAF flow dependency)
693    o in initialise_varia, moved call packages_init_variables
694      before convective_adjustment_init
695      (corresponding adjustment of TAF tape initialisation).
696    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
697    
698    checkpoint45a_post
699    o compute Rho over the whole domain (extend iMin,jMin indices)
700    o specific exchange for X-slice domain (case Ny=1)
701    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
702    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
703    
704    checkpoint44h_post = checkpoint45
705    o Fix to restore differentiability:
706      place at which packages_init_variables is called in
707      initialise_varia is crucial for reverse control flow.
708    o modifications in GMRedi to enable stable adjoint
709      (corresponding modif's in thermodynamics, dynamics)
710    o added missing hook for sponge layer code in external_forcing
711    o modified test cost functions
712    o storing in gad_advection (plus removal of write(0,*)!
713    o missing headers TR1.h added in convective_adjustment routines
714    o errorMessageUnit set non-equal zero in eeboot
715      (conflict on some platforms, e.g. IBM SP3)
716    o modified carbon verif.
717    
718    checkpoint44h_pre
719    o vertical grid option: allow to put the Interface at the middle between
720      2 cell-centers ; replace delZ in pkg/kpp by drF.
721    o GM Advective form: Tracers are advected using the residual transport (=
722      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
723    
724    checkpoint44g_post
725    o fix surface correction term in multiDimAdvection (affects plume_on_slope
726      results) ; ifdef missing in thermodynamics.F
727    
728    checkpoint44f_pre,checkpoint44f_post
729    o added PTRACERS package
730      This allows an arbitrary number of passive tracers to be integrated
731      forward simultaneously with the dynamicaly model.
732      + Implemented so far:
733        - basic forward algorithm (time-stepping, advection, diffusion, convection)
734        - I/O and checkpointing
735        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
736      + Not implemented so far:
737        - KPP
738        - OBCS
739      + No specific example supplied (yet) but global_ocean.90x40x15 has the
740        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
741        line in data.pkg.
742      + This package is disabled by default since it increases storage.
743    
744    
745    o testscript: added -cleanup option
746    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
747                 b) enable to filter 2D fields.
748    
749    checkpoint44e_pre,post
750    o re-wrote convective adjustment to use pre-calculated weights
751      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
752      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
753      Original calls to convect() still in place.
754    
755    chkpt44d_pre,post
756    o added missing EXCLUDE_MONITOR flags
757    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
758      (incompatible typ in MIN/MAX expressions caused problems
759      on IBM SP3)
760    o in genmake added variable MAKEDEPEND
761      plus resetting for case SunOS
762    o added timer_stats.c routine for IBM SP3
763    o removed variables in dynamics
764    !!! I forgot to create tag chkpt44d_pre !!!
765    !!! But chkpt44d_pre = chkpt44c_post    !!!
766    
767    o real fresh water flux implemented with non-linear free-surface.
768    
769    chkpt44c_pre,post
770    o few fix (mask in shap_s2, EmPmR in external_field_load,
771      USE_NATURAL_BCS in solve_for_P);
772    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
773    
774    checkpoint44b_pre/_post
775    o merge of relevant stuff from the ecco-branch:
776      - genmake: removed $S64 overwrite for case SunOS
777      - pkg/exf: update and corrections for field swapping and obcs
778      - pkg/ecco: parameter lists for the_model_main, the_main_loop
779                  harmonized between ECCO and MITgcm
780      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
781                      updated checkpointing_lev... lists for obcs
782      - model/src: minor changes in forward_step, plot_field
783                   added directive for divided adjoint in the_main_loop
784      - pkg/mdsio: added mdsio_gl_slice
785    
786    o check parameters & config (chkpt44a_pre,post)
787    o OBC and NonLin_FrSurf.
788    
789    checkpoint44
790    o fix bug in mom_vi_del2uv
791    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
792    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
793    o update AIM experiments (NCEP input files)
794    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
795    o added some stuff for AD
796    
797    checkpoint43
798    o added two new advection tests
799    o added global 4x4 degree ocean test
800    o added test of H&S94 with free surface on cube
801    o some final mods for gradient check, adjoint,...
802    
803    checkpoint42
804      Fixed AD-related problems:
805    o Store directives up-to-date with re-arranged Adams-Bashforth
806      (mainly thermodynamics.F)
807    o New store directives for multi-dim. advection schemes
808      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
809      * new common block and key passkey
810      (mainly gad_advection.F)
811    o Modified store directives for split of dynamics/thermodynamics
812      for the case ALLOW_KPP
813    o Cleaned argument list for timestep_tracer.F
814    
815    checkpoint41
816    o re-formatted/added comments in prologues of key subroutines
817      to work with protex
818    
819    checkpoint40
820    o moved calc_gs, calc_gt and calc_tr1 back to model/src
821    o added FLT (floats) package from Arne along with demo. experiment
822    o re-arranged Adams-Bashforth scheme for tracers to allow easier
823      implementation of forward-in-time forcing terms
824    o more mods for non-linear free-surface including new variable
825    o modified multi-dim method to work on cube
826    o bug fix in KPP (from DM)
827    
828    checkpoint40pre9
829    o added DST advection schemes
830    o fix MPI bug on SGI's
831    o modifications for non-linear free-surface
832    o fixed conditionals for fixed flow/passive tracer only mode
833    o added tension/strain form of stress tensor
834    o changes to commenting of arguments for TAF/TAMC
835    o added/updated many matlab scripts
836    o added multi-dimensional advection method for tracers
837      
838    checkpoint40pre8
839    o new package rw/
840      Added method for dumping intermediate local arrays:
841      mdsio_writetile - same as mdsio_writefield except works from inside
842                        bi,bj loop
843      mdsio_writelocal - same as mdsio_writetile except works for local
844                         arrays
845      write_local_r? - higher-level wrapper for mdsio_writelocal
846      Controlled by diagFreq. Defaults to zero (ie. no dumps)
847      Example given at end of mom_vecinv.F that dumps some local arrays.
848    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
849      control flux-form versus vector invariant code.
850      Switch is runtime flag vectorInvariantMomentum (defaults to false)
851      or genmake -DISABLE ...
852    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
853      (additional storing is now needed for case vecinv;
854      currently nothing implemented to switch this storing off
855      in case fluxform is used since no CPP flag available).
856    
857    checkpoint40pre7
858    o bug fix in dynamics.F
859      calc_viscosity called before k=1,Nr loop.
860    o added some #ifdef's ALLOW_PASSIVE_TRACER
861    o cleaned initialisations in ctrl_map_ini
862      related to TAF
863    
864    checkpoint40pre6
865    o split dynamics into thermodynamics & dynamics
866    o corresponding split of calc_diffusivity into
867      calc_diffusivity, calc_viscosity
868      (kpp_calc_diff, kpp_calc_visc).
869    o Added diffkr, kapgm to control variables
870    o bug fix in gmredi_slope_limit for ldd97
871    
872    checkpoint40pre5
873    o proper initialization of Adams-Bashforth time stepping
874      + uses forward step for very first step of model (iter=0)
875    o re-generated *all* output since almost all output is modified by this
876      change (sorry but we've been putting this one off for about 2 years)
877      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
878        *not* regenerated since they are already out of date and I don't
879        want to create the impression that they are suddenly working.
880    o removed KAP stuff for DEC's
881    o modified/added many .cvsignore files in */code and */input
882    o added new expt "solid-body.cs-32x32x1"
883      + this uses an alternative form of ini_curvilinear_grid.F which
884        is not necessarily any better than the current one...
885    
886    checkpoint40pre4
887    o added re-initialisations of utrans,vtrans,rtrans in
888      calc_common_factors which are crucial for TAF.
889    o extended iMin,jMin range for calc_common_factors,
890      calc_diffusivity
891    o added option ALLOW_PASSIVE_TRACER
892    o a few minor updates and fixes
893    
894    checkpoint40pre3
895    o created calc_gtr1.F for gad package
896    o split the_main_loop and re-introduced forward_step
897    o some recomputations of nIter0 for TAMC
898    
899    checkpoint40pre2
900    o Updated to latest branch of AJA, JMC
901    o Added gradient check package
902    o Added routines for passive tracer handling
903    o Added carbon sequestration sensitivity experiment
904    
905    checkpoint39
906     o Modifications and fixes to support TAMC
907       (mainly missing or wrong directives)
908     o Corrected common blocks when fooling TAMC to produce adjoint I/O
909       in addummy_in_stepping
910     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
911     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
912     o Included following packages:
913       cal: calendar
914       exf: external forcing
915       ecco: essential routines to control use of cal, exf
916             (NB: this is not the full ECCO environment)
917     o disabled some packages by default in genmake
918    
919    checkpoint38
920     o see notes_c37_adj.txt
921     o corrected wrong layer index in external_forcing_t
922     o replaced the_main_loop/forward_step by the_main_loop
923     o removed forceoutput from write_state
924       (replaced criteria for initial/final state)
925     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
926    
927    checkpoint37
928     o mdsio.F routine split and packaged in pkg/mdsio
929       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
930        used unless genmake -disable=mdsio)
931     o allow a more precise surface-geopotential gradient for the atmosphere
932       taking into account the change in space of Alpha (=1/rho) at the surface.
933     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
934       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
935     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
936       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
937       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
938     o Time-Average diagnostics defined as a pseudo package "timeave".
939     o pickup files : old pickup (before c35) did not work with new code (c35
940       and after) unless activating 2 commented lines in initialise-varia.
941     o Non-Hydrostatic pickup file Pb fixed.
942     o bug with Rigid-lid version (since c35) fixed.  
943    
944    checkpoint36
945     o implement Crank-Nickelson barotropic time-stepping
946     o recover Time-Average diagnostics
947     o fix Pb in checkpoint (PR#19)
948     o AIM become a standard package ; clean unused CPP_kees
949    
950    checkpoint35
951     o subtantial rewrite of dynamics.f
952     o allows staggered time-stepping
953     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
954     o added bottom drag (linear + quadratic)
955    
956    checkpoint34
957     o Modified exchange routines for correct reverse simulation.
958     o Added verification output to comply with bug fix in impldiff.F
959       as of c33 (exp2, natl_box).
960     o Corrected store directives in dynamics.F
961     o Corrected array boundaries in impldiff.F
962     o Corrected array dimensions in gmredi.
963       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
964     o Added routine GLOBAL_SUM_INT to global_sum.F
965     o Added mdsio_gl.F for ECCO purposes.
966    
967    checkpoint33
968     o Fixed bug in lower BC in impldiff.F
969     o Fixed confusion about units of forcing arrays in FFIELDS.h
970       namely Fu,Fv,Qnet,Qsw,EmPmR:
971       - Removed verification/natl_box/code/external_fields_scale.F
972         (did not differ from that in model/src)
973       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
974         (see FFIELDS.h for description)
975       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
976         kpp_calc.F and kpp_transport_t.F
977       - Removed model/src/external_fields_scale.F and calls to it
978       - verification/natl_box uses flux data with "atmospheric" sign so
979         a special version of external_fields_load.F is used to
980         change the data as it's read in. This way, the arrays
981         have the right units and signs at all times tha a user could
982         possibly use them.
983     o Corrected genmake to delete a temporary file during configuration
984    
985    checkpoint32
986     o Scaling of forcing fields moved from external_forcing.F to
987       external_fields_scale.F, called directly after loading fields.
988     o Surface relaxation terms added to surface tendency fields in
989       extra subroutine.
990     o impldiff.F changed to avoid storing by TAMC of huge intermediate
991       fields.
992     o Changes in GMRedi to comply with packaging structure.
993     o Modifications and bug fixes in KPP package.
994     o Verification experiment for KPP added (verification/nat_box/)
995    
996    checkpoint31
997     o Packages interface brought in line with defined standard
998       -> new routines packages_...F
999       -> changes in initialise_fixed.F, initialise_varia.F
1000       -> enables initialisation interface for ECCO package
1001     o Rescaling of external forcing fields immediately after read
1002       (removed from external_forcing.F)
1003       -> new: surface_fields_scale.F
1004       -> affects ini_foorcing.F, external_fields_load.F
1005     o Computation of surface tendencies before tendency updates.
1006       -> new: external_forcing_surf.F
1007     o Change of variable names useGMRedi, useKPP, useECCO
1008     o Further changes in dynamics.F, impldiff.F for TAMC
1009     o Tested for experiments 0, 2, 4.
1010       - not yet tested for GMRedi.
1011       - not yet tested for KPP.
1012    
1013    checkpoint30
1014     o Updates for OBCs
1015     o New experiment for test OBCs (internal_wave)
1016     o New output.txt in verification/exp4/results/
1017     o Updates for KPP: calculation of viscosity corrected, new variables
1018       kpp_dumpFreq and kpp_taveFreq
1019     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
1020       and entry for T90 in genmake
1021    
1022    checkpoint29
1023     o packaged KPP and GM/Redi
1024    
1025    checkpoint28
1026     o Corrected initialization of hFacMin for difference vertical coordinates
1027     o Modified calculation of partial cell thickness to more robust algorithm
1028     o config_summary.F: replaced write_1D_... by write_0D_...
1029       read_write.F: added subroutines write_0D_...
1030     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
1031       included some initialisations required for TAMC.
1032     o routine calc_isoslopes: modified sqrt computation to make it
1033       differentiable for zero argument.
1034     o routines dynamics, impldiff:
1035       included store directives and tape key computations required for TAMC.
1036     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
1037    
1038    checkpoint27
1039     o fixed calc_isoslopes() to so that cancellation of terms in tensor
1040       formulation works properly with variable resolution.
1041     o restructured the calling tree between the_model_main() and dynamics()
1042     o split initialise() into initialise_fixed() and initialise_varia()
1043     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
1044       in new routine ini_psurf()
1045    
1046    checkpoint26
1047     o moved some #ifdef in optional routines to encompass everything
1048       except the argument declarations. This was using up some memory.
1049     o fixed macros like _ADT to work with both versions of Linux cpp
1050     o cleaned up some unused and uninitialized variables
1051       (helps when debugging with strict compile options)
1052     o split up CPP_EEOPTIONS.h into options and macros
1053       (macros are now in eesupp/inc/CPP_EEMACROS.h)
1054     o patch for 2 processor JAM mode
1055    
1056    checkpoint25
1057     o updates for OBCs and NH
1058     o dramatically reduced memory usage
1059     o added "JAM" routines for use on Artic network
1060     o parameterization of convection by implicit vertical diffusion
1061     o added a diagnostic of convective index
1062     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
1063       (this is was partly for OBCs and NH but also in anticipation of
1064        an explicit free-surface option)
1065     o initial state input files for U and V
1066    
1067    checkpoint24
1068     o Removed some spurious "REAL"s
1069     o Updated KPP to latest version from JPL
1070     o Added a COS(latitude) in horizontal viscosity
1071    
1072    checkpoint23
1073     o Added del^4 diffusion for salt and temperature
1074     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
1075    
1076    checkpoint22
1077     o Made many small changes: implicit none, format(i5), etc...
1078     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
1079    
1080    checkpoint21
1081     o Introduced new I/O package that supports direct-access records (mdsio.F)
1082     o Split-up mid-level I/O routines
1083     o Updated input data for experiments 0,1,2,4 and 5
1084     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
1085    
1086    checkpoint20
1087     o Tidied up open-boundaries some more
1088     o Added non-hydrostatic code
1089     o Fixed some input data
1090     o Modified MPI start-up to work in "coupled" context.
1091    
1092    checkpoint19
1093     o Tidied up directory structure for verification experiments.
1094     o Added new code for open boundaries.
1095     o Corrected advective terms near boundaries.
1096     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
1097     o Implemented free-slip/no-slip BCs and del^4 dissipation.
1098     o Split default parameters out of ini_parms.F into set_defaults.F.
1099    
1100    checkpoint18
1101     o Further changes for optional code generation with
1102       CPP - ugh!
1103    
1104    checkpoint17
1105     o Beginning to incorporating modularity
1106       for supporting atmos. and ocean configs.
1107     o Small changes for TAMC complinace
1108     o New ultra simple test case. Barotropic box
1109       configuration "exp0".
1110    
1111    checkpoint16
1112     o Minor changes to exchange routines to support
1113       accumulation in reverse mode. Adjoint of an
1114       assignment is an addition.
1115     o Changes to support compilation by TAMC (LR(1)
1116       syntax) and by g77 under Linux ( 72 character
1117       limit ).
1118    
1119    checkpoint15
1120     Rewrote exchange routines to allow
1121     o General tile <-> tile connectivity.
1122     o TAMC reverse mode flag ( is this really needed? )
1123     o Variable width overlap and exchange region widths.
1124     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1125       shmput/shmget, VIA, SYSV shmem and every other cool
1126       communication method.
1127    
1128    checkpoint14
1129     Consistent isomorphism chages made. These allow dynamical core
1130     to support both pressure and meters as a vertical coordinate.
1131    
1132    checkpoint13
1133     Release which corrects global_max problem and a couple
1134     of KGM time-averaging diagnostic errors. Also contains
1135     a double-gyre experiment setup as well as the baseline
1136     4 degree global template. The double gyre template is
1137     organised to allow it to be applied automatically to
1138     the baseline configuration.
1139    
1140    branch-point-rdot
1141     A few tidy-ups have been made bt the real point of this
1142     check-point (excuse the pun) is to allow a branch to be
1143     made for the purposes of adding the rDot alterations.
1144     I don't want to commit the rDot to the main-trunk until
1145     we've actually tested it...
1146    
1147    checkpoint12
1148     Tidy up and added generic genmake script (formerly
1149     configure script).
1150     Released to testers.
1151    
1152    checkpoint11
1153     Re-arranged initialise() and introduced ini_vertical_grid()
1154     and ini_masks_etc().
1155    
1156    checkpoint10
1157     Introduced the configure script.
1158     Separated out the diags package.
1159     Added template for writing time-averages of tile/intermediate quantities.
1160     Updated SIZE.h in exp2 and made the data big-endian.
1161    
1162    checkpoint9
1163     MPI fix. Filename changes (meta/data). salbin*y stuff.
1164     General tidy-up.
1165     SST.bin SSS.bin added to verification/exp2
1166    
1167    checkpoint8
1168     Inludes time-dependant forcing and time-averaging.
1169     Works at 4x4 and 2.8125x2.8125 global
1170    
1171    checkpoint7-4degree-ref
1172     Branch from checkpoint7. Released for application to
1173     global modeling and general modeling - process studies, regional
1174     model etc..
1175     Configured for verification/exp2 - 4 degree global, two process.
1176    
1177    checkpoint7
1178     Created by cnh
1179     Simple 4 degree global simulation
1180     configuration.
1181     Includes climatological wind,
1182     hydrography, bathymetry etc
1183     Does not include Heat Flux and E-P
1184    
1185    checkpoint6
1186     Created by cnh
1187     merged checkpoint5 with CD and
1188     spherical polar code.
1189     Still some problems with GM Redi
1190     abd full topography.
1191    
1192    checkpoint5
1193     Created by AJA
1194     contains updates to GM Redi
1195     and reordered timestepping loop
1196     for Implicit Diffusion.
1197    
1198    checkpoint4
1199     Created by cnh
1200     Contains memory saving macros ( _rdxc etc..) for when
1201     grid variations are limited.
1202     Contains polynomial coeffs for EOS and knudsen program
1203     for generation.
1204    
1205  checkpoint3  checkpoint3
1206   Created by cnh   Created by cnh
1207   Added extra flags for runtime options   Added extra flags for runtime options
# Line 20  checkpoint1 Line 1220  checkpoint1
1220   Restructured kloop in dynamics.F   Restructured kloop in dynamics.F
1221   Added non-linear EOS   Added non-linear EOS
1222    
1223  baseline - Original checked in code  baseline
1224     Original checked in code
1225    

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