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revision 1.6 by adcroft, Mon Jun 22 16:09:37 1998 UTC revision 1.118 by adcroft, Mon Jan 13 14:31:49 2003 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    o gmredi: fix few bugs and restore parameter values (e.g., Small_Number=1.D-12)
6      and scheme (e.g., Large_SlopeSqr=1.D+48) of checkpoint47f_post
7    
8    checkpoint48
9    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
10    This will be a good checkpoint to plug into the ecco-branch.
11    o few modif.'s to get latest version adjointed
12      (mainly kick out code in ini_linear_phisurf)
13    o modif's to run adjoint with exactConserv
14    o case GM_BOLUS_ADVEC should be cleaned
15      S/R gmredi_slope_psi should be cleaned
16    o verification/carbon now has exactConserv=.TRUE.
17    
18    checkpoint47g_post
19    o time-average AIM output: becomes independent from statvars time-average
20      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
21    o After TAF bug fix:
22      Tested adjoint of gmredi package.
23      Tests were done with checkpoint47 rather than with latest
24      checkpoint47f_post since the latter is broken for the adjoint
25      verification/carbon/ contains both ADM and TLM gradient checks.
26    Here they are, before they get changed/lost/stolen.
27    Mostly modif.'s to fix numerical sensitivities.
28    Gradient checks OK for
29    - GM_taper_scheme:
30      * clipping
31      * ac02
32      * linear
33      * glw91
34      * dm95
35      * ldd97
36    - GMREDI_OPTIONS:
37      * GM_VISBECK_VARIABLE_K
38      * GM_NON_UNITY_DIAGONAL
39      * GM_EXTRA_DIAGONAL
40      * GM_BOLUS_ADVEC
41    in conjunction with data.gmredi parameters to be checked in
42    in a few minutes under verification/carbon/code/
43    
44    checkpoint47f_post
45    Merging from release1_p10:
46    o modifications for using pkg/exf with pkg/seaice
47      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
48        and SEAICE_EXTERNAL_FLUXES
49      - pkg/exf CPP options EXF_READ_EVAP and
50        EXF_NO_BULK_COMPUTATIONS
51      - usage examples are Experiments 8 and 9 in
52        verification/lab_sea/README
53      - verification/lab_sea default experiment now uses
54        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
55    
56    checkpoint47e_post
57    o created a tag prior to creating a branch
58    
59    checkpoint47d_post
60    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
61      at the bottom boundary had an erroneous half slip boundary condition
62    o added bottom drag and no slip boundary condition capabilities to
63      oceanic pressure coordinates code
64    o added new verification experiment global_ocean_pressure, this experiment is
65      also described in the tutorial section of the manual
66    checkpoint47d_pre
67    
68    checkpoint47c_post
69    o Added a verification experiment for a global cubed-sphere ocean run
70      -  verification/global_ocean.cubed32x32x30
71      -  uses pkg/therm_seaice and pkg/bulk_forcing
72    
73    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
74    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
75      when using P-coordinate; only implemented for atmospheric config.
76    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
77      NOTES: requires option NONLIN_FRSURF to be "#define".
78    o update advect_xz/results/output.txt (left from checkpoint44g_post)
79    
80    checkpoint47b_post
81    Merging from release1_p9:
82    o pkg/seaice
83      - removed GOTO's and added taf directives
84      - double precision constants to reduce the g77 (Linux)
85        to F77 (SGI) differences reported in release1_p8
86    o tools/genmake
87      - added SGI options
88    o verification/testscript
89      - updated to that of checkpoint47a_post
90    o verification/global_ocean.90x40x15/input/eedata
91      - modified for SGI f77 compatibility
92    o verification/lab_sea
93      - added description of sea-ice model
94      - added missing matlab routines
95      - added test of thermodynamics parallelization
96    
97    checkpoint47a_post
98    o new pkg: aim_v23
99     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
100       for now, keep the same surface forcing as before.
101     - Part-Cell implemented into AIM; check that Heat & Water are conserved
102     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
103     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
104    o add diagnostic of surface correction term in monitor output
105    
106    o bulk_force and therm_seaice
107    - Two packages:  bulk_force (Bulk forcing)
108      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
109    - Earlier integration from Stephaine Dutkiewicz
110      and Patrick Heimbach.
111    - Two ifdef statements for compile time,
112       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
113    
114    checkpoint47
115    differentiable version of checkpoint46n_post
116    o bug fix in quasihydrostaticterms
117    o * "clean" adjoint code (in terms of extensive recomputations)
118        can now be obtained for all GMREDI options (i.e. for
119        - GM_VISBECK_VARIABLE_K
120        - GM_NON_UNITY_DIAGONAL
121        - GM_EXTRA_DIAGONAL
122        - GM_BOLUS_ADVEC )
123      * However, wrong gradient check problem remains unsolved.
124      * New CPP options have been introduced for different
125        tapering schemes
126    o external_fields_load now part of differentiation list
127    o pressure needs multiple storing;
128      would be nice to have store_pressure at beginning or
129      end of forward_step, e.g. by having phiHyd global (5-dim.)
130      (NB: pressure is needed for certain cases in find_rho,
131      which is also invoked through convective_adjustment).
132    o recomputations in find_rho for cases
133     'JMD95'/'UNESCO' or 'MDJWF' are OK.
134    o #define ATMOSPHERIC_LOADING should be differentiable
135    o ini_forcing shifted to begining of initialise_varia
136    o Incorporating QNVS line search routines into MITgcm
137      (this is separate code, and therefore not under pkg)
138      lsopt/, optim/
139    o Updated verification/carbon/
140      - #define GM_VISBECK_VARIABLE_K
141      - GM_taper_scheme    = 'ldd97'    
142    
143    checkpoint46n_post
144    Merging from release1_p8:
145    o verification/natl_box:
146      updating new external_fields_load routine
147    o New package: pkg/seaice
148      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
149      The sea-ice code is based on Hibler (1979-1980).
150      Two sea-ice dynamic solvers, ADI and LSR, are included.
151      In addition to computing prognostic sea-ice variables and diagnosing
152      the forcing/external data fields that drive the ocean model,
153      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
154      The implied surface heat flux is then stored in variable
155      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
156      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
157      non-local transport term.  Because this call precedes model
158      thermodynamics, temperature under sea-ice may not be "exactly" at
159      the freezing point by the time theta is dumped or time-averaged.
160      N.B.: fairly large differences in accuracy occur across
161            different platforms/compilers; comparison between
162            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
163            generated output gives:
164       T           S           U           V
165      C D M    c        m  s        m  s        m  s        m  s
166      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
167      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
168      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
169    
170      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
171    o GAD:
172      - generated new common blocks to account for call of
173        same gad routines with differing traceridentities
174        (needed to modify tracerIdentity indices in GAD.h)
175      - generated separate common blocks for case useCubedSphereExchange
176        (Department of Futurology)
177      - parameter lists to gmredi_?transport: added tracerIdentity
178      - added new key indices to tamc.h
179    o external_fields_load:
180      - added this routine to TAF list
181      - needed to make some common blocks global and additional storing
182        along the same lines as exf package (checkpoint_lev?_directives.h)
183    o exf:
184      updated external forcing package
185      - bug fixes carried over from ecco-branch
186        (missing OBCS_OPTIONS.h in two routines)
187      - enable easy to use "no forcing".
188      - added exf I/O for atmospheric loading
189      - added exf I/O for runoff data
190      - transfered scaling between exf <-> MITgcm to exf namelist
191    o Adding new verification experiment global_with_exf.
192      This verification experiment is almost identical to the
193      global_ocean.90x40x15 experiment, except that it uses
194      the exf (and cal) package instead of the
195      external_fields_load routine (cf README file).
196    
197    checkpoint46m_post
198    o modified testscript to return -- when there are no lines of "%MON" output
199    o added new flag "quasiHydrostatic" for QH mode
200      and new routine quasihydrostaticterms()
201    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
202      New routine: mom_u_coriolis_nh()
203    o fixed sign of non-hydrostatic metric terms in u and v equations.
204      Depend on correct sign of gravitySign.
205    o added work.pc* to .cvsignore in aim directories using ifc
206    o introduced flag for controllin non-hydrostatic metric terms
207    o removed gravitySign from PARM04
208    o switched to g77/ifc from pgf77 in aim experiments
209    
210    checkpoint46l_post
211    o made convective adjustment work with pressure coordinates:
212     - changed the direction of k-loop in convective_adjustment.F for the
213       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
214     - adjusted the reference pressure k-index in convective_adjustment.F
215     - adjusted the convection condition in convect.F (in analogy to
216       calc_ivdc.F)
217     - convective_adjustment no longer computes anything on the halos
218     - removed the warnings about negative salinity from find_rho.F and
219       find_alpha.F; instead the new routine look_for_neg_salinity, called
220       at the beginning of find_rho, find_alpha, and find_beta, does a
221       check of the entire slice, if CPP-option
222       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
223    checkpoint46l_pre
224    
225    checkpoint46k_post
226    o fixed the verification/global_ocean.90x40x15 experiment:
227     - new bathymetry (the world according to A., JMC, and M.)
228     - new initial fields and forcing fields (*.bin files)
229     - new POLY3.COEFFS (for the next release one should switch to a full
230       equation of state: JMD95P or MDJWF)
231     - fixed several errors and redundancies in the data file
232     - experiment uses looped cells
233     - added matlab directory with diagnostic scripts for plotting of output
234    
235    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
236     - read AIM physics parameters from a file (data.aimphys)
237     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
238    
239    checkpoint46j_post
240    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
241    o move wVel computation at the end of the time step, in S/R integr_continuity
242    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
243    o update timeave pkg for wVel diagnostic.
244    checkpoint46j_pre
245    
246    checkpoint46i_post
247    o Clean up AIM package (and keep the results unchanged):
248      include CPP_OPTION and use IMPLICT NONE in all routines ;
249      declare all the variables _RL ; use _d 0 for all numerical constants.
250      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
251    
252    checkpoint46h_post
253    o cleaned up the use of rhoNil and rhoConst.
254      - rhoNil should only appear in the LINEAR equation of state, everywhere
255        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
256        and the dynamical equations are all divided by rhoConst
257    o introduced new parameter rhoConstFresh, a reference density of fresh
258      water, to remove the fresh water flux's dependence on rhoNil. The default
259      value is 999.8 kg/m^3
260    o cleanup up external_forcing.F and external_forcing_surf.F
261      - can now be used by both OCEANIC and OCEANICP
262    checkpoint46h_pre
263    
264     Added code to convert surface volume flux (fresh water) into
265     a mass flux when using P coordinates in the ocean (OCEANICP).
266     Note: It assumes you have set rho0=rhoConst=density of fresh water.
267    
268    checkpoint46g_post
269    o Include a new diagnostic variable phiHydLow for the ocean model
270      - in z-coordinates, it is the bottom pressure anomaly
271      - in p-coordinates, it is the sea surface elevation
272      - in both cases, these variable have global drift, reflecting the mass
273        drift in z-coordinates and the volume drift in p-coordinates
274      - included time averaging for phiHydLow, be aware of the drift!
275    o depth-dependent computation of Bo_surf for pressure coordinates
276      in the ocean (buoyancyRelation='OCEANICP')
277      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
278        Theta, Salinity, and Pressure in the parameter list. This routine is
279        presently contained in find_rho.F. This routine does not give the
280        correct density for 'POLY3', which would be a z-dependent reference
281        density.
282    o cleaned up find_rho
283      - removed obsolete 'eqn' from the parameter list.
284    o added two new verification experiments: gop and goz
285      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
286    checkpoint46g_pre
287    
288    checkpoint46f_post
289    o Enable tangent linear (forward mode) gradient checks:
290      - extended active file handling to g_... files
291      - added TANGENT_SIMULATION to theSimulationMode
292      - extended grdchk package accordingly
293    o added tangent linear setup in verification/carbon/code_ftl
294    o added adjoint setup in verification/front_relax/code_ad
295    
296    checkpoint46e_post
297    o Added new equation of state -> MDJWF
298      - EOS of McDougall et al., 2002, JAOT, submitted
299      - caveat: the equation of state is only valid for a smaller (more
300        realistic?) range of values than JMD95P/Z and UNESCO
301      - added masks to the calculation of pressure in store_pressure
302      - added more check values for density in check_eos (ini_eos.F), some of
303        the old check values are out of the range of the MDJWF-eos, so don't
304        expect perfect matches for those
305    checkpoint46e_pre
306    
307    checkpoint46d_post
308    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
309      'OCEANICP', also initialised field pressure correctly in ini_eos in the
310      case of pressure coordinates. eosType='JMD95Z' in
311      combination with buoyancyRelation='OCEANICP' now causes an error.
312    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
313      in find_alpha/beta.
314    checkpoint46d_pre
315    
316    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
317      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
318    
319    checkpoint46c_post
320    o Changes necessary for ocean in p-coordinates
321     -  Added new buoyancy relation = 'OCEANICP'
322     -  Added new parameters = gravitySign (this used to be contained inside
323        the factor dRdZ which I added when we first switched to R coordinates).
324     X GM/Redi is not compatible (yet)
325     X bottom drag and no-slip need to be debugged.
326    checkpoint46c_pre
327    
328    checkpoint46b_post
329    o Added new equation of state -> JMD95Z and JMD95P
330      - EOS of Jackett and McDougall, 1995, JAOT
331      - moved all EOS parameters into EOS.h
332      - new routines ini_eos.F, store_pressure.F
333    o Added UNESCO EOS, but not recommended because it requires
334      in-situ temperature (see JMD95)
335    o Modified formatting for knudsen2.f in utils/knudsen2 and added
336      unesco.f to be used with POLY3
337    checkpoint46b_pre
338    
339    checkpoint46a_post
340    o Added (atmospheric) pressure loading
341      - new field in FFIELDS.h, etc...
342      - new cpp flag ATMOSPHERIC_LOADING
343    o Changed hFacC to _hFacC in calc_phi_hyd.F
344    o Added SHORTWAVE_HEATING to some files for consistency
345    checkpoint46a_pre
346    
347    checkpoint46
348    further merges from release1_p5
349    o new ctrl package
350      - adopted from ECCO environment to enable optimization
351      - added Eliassen Palm fluxes to controls
352    o added Eliassen Palm flux controls to gradient check package
353    o cost package
354      - Compatible with new ctrl package
355      - added Eliassen Palm cost hooks
356      - modif's of existing cost functions
357    o Adjoint-related bug fixes in kpp:
358      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
359      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
360    o autodiff package
361      - flow directives:
362        + new for S/R do_the_model_io
363        + enhanced for S/R checkpoint
364        + new gmredi.flow
365      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
366        disable adcommon.h/g_common.h by default.
367      - fixed problem for adjoint of global_max
368    o modified verification/carbon/
369    o New setup for adjoint of global_ocean
370    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
371    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
372    o incorporated hooks for sponge layer code (external_forcing.F)
373    
374    checkpoint45d_post
375    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
376    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
377      (affects plume_on_slope "cg2d" output)
378    o add new parameter deltaTfreesurf for free-surface time stepping
379    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
380    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
381    o change phiMin in exp1 (to agree with documentation)
382    o add new flags:
383     - T,S forcing inside/outside Adams-Bashforth
384     - turn off temp,salt advection and/or forcing
385     - for each tracer, define internal flag for multiDimAdvection & A-B
386    o monitor: change definition of KE to check conservation of Energy
387    
388    checkpoint45c_post
389    o Removed f90 comments ("!")
390    o Modified initialisations to enable exf package for MITgcm
391      (without invoking ECCO_PACKAGE).
392    o modifications to gradient check package (Martin Losch)
393      - enable centered differences
394      - modified format of standard output
395    
396    checkpoint45b_post
397    o cleaned exchange calls in cg2d
398    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
399    o included CPP option SINGLE_LAYER_MODE in thermodynamics
400      to configure barotropic setup (Martin Losch)
401    o moved some initialisations within bi,bj loop in dynamics
402      (TAF flow dependency)
403    o in initialise_varia, moved call packages_init_variables
404      before convective_adjustment_init
405      (corresponding adjustment of TAF tape initialisation).
406    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
407    
408    checkpoint45a_post
409    o compute Rho over the whole domain (extend iMin,jMin indices)
410    o specific exchange for X-slice domain (case Ny=1)
411    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
412    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
413    
414    checkpoint44h_post = checkpoint45
415    o Fix to restore differentiability:
416      place at which packages_init_variables is called in
417      initialise_varia is crucial for reverse control flow.
418    o modifications in GMRedi to enable stable adjoint
419      (corresponding modif's in thermodynamics, dynamics)
420    o added missing hook for sponge layer code in external_forcing
421    o modified test cost functions
422    o storing in gad_advection (plus removal of write(0,*)!
423    o missing headers TR1.h added in convective_adjustment routines
424    o errorMessageUnit set non-equal zero in eeboot
425      (conflict on some platforms, e.g. IBM SP3)
426    o modified carbon verif.
427    
428    checkpoint44h_pre
429    o vertical grid option: allow to put the Interface at the middle between
430      2 cell-centers ; replace delZ in pkg/kpp by drF.
431    o GM Advective form: Tracers are advected using the residual transport (=
432      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
433    
434    checkpoint44g_post
435    o fix surface correction term in multiDimAdvection (affects plume_on_slope
436      results) ; ifdef missing in thermodynamics.F
437    
438    checkpoint44f_pre,checkpoint44f_post
439    o added PTRACERS package
440      This allows an arbitrary number of passive tracers to be integrated
441      forward simultaneously with the dynamicaly model.
442      + Implemented so far:
443        - basic forward algorithm (time-stepping, advection, diffusion, convection)
444        - I/O and checkpointing
445        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
446      + Not implemented so far:
447        - KPP
448        - OBCS
449      + No specific example supplied (yet) but global_ocean.90x40x15 has the
450        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
451        line in data.pkg.
452      + This package is disabled by default since it increases storage.
453    
454    
455    o testscript: added -cleanup option
456    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
457                 b) enable to filter 2D fields.
458    
459    checkpoint44e_pre,post
460    o re-wrote convective adjustment to use pre-calculated weights
461      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
462      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
463      Original calls to convect() still in place.
464    
465    chkpt44d_pre,post
466    o added missing EXCLUDE_MONITOR flags
467    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
468      (incompatible typ in MIN/MAX expressions caused problems
469      on IBM SP3)
470    o in genmake added variable MAKEDEPEND
471      plus resetting for case SunOS
472    o added timer_stats.c routine for IBM SP3
473    o removed variables in dynamics
474    !!! I forgot to create tag chkpt44d_pre !!!
475    !!! But chkpt44d_pre = chkpt44c_post    !!!
476    
477    o real fresh water flux implemented with non-linear free-surface.
478    
479    chkpt44c_pre,post
480    o few fix (mask in shap_s2, EmPmR in external_field_load,
481      USE_NATURAL_BCS in solve_for_P);
482    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
483    
484    checkpoint44b_pre/_post
485    o merge of relevant stuff from the ecco-branch:
486      - genmake: removed $S64 overwrite for case SunOS
487      - pkg/exf: update and corrections for field swapping and obcs
488      - pkg/ecco: parameter lists for the_model_main, the_main_loop
489                  harmonized between ECCO and MITgcm
490      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
491                      updated checkpointing_lev... lists for obcs
492      - model/src: minor changes in forward_step, plot_field
493                   added directive for divided adjoint in the_main_loop
494      - pkg/mdsio: added mdsio_gl_slice
495    
496    o check parameters & config (chkpt44a_pre,post)
497    o OBC and NonLin_FrSurf.
498    
499    checkpoint44
500    o fix bug in mom_vi_del2uv
501    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
502    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
503    o update AIM experiments (NCEP input files)
504    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
505    o added some stuff for AD
506    
507    checkpoint43
508    o added two new advection tests
509    o added global 4x4 degree ocean test
510    o added test of H&S94 with free surface on cube
511    o some final mods for gradient check, adjoint,...
512    
513    checkpoint42
514      Fixed AD-related problems:
515    o Store directives up-to-date with re-arranged Adams-Bashforth
516      (mainly thermodynamics.F)
517    o New store directives for multi-dim. advection schemes
518      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
519      * new common block and key passkey
520      (mainly gad_advection.F)
521    o Modified store directives for split of dynamics/thermodynamics
522      for the case ALLOW_KPP
523    o Cleaned argument list for timestep_tracer.F
524    
525    checkpoint41
526    o re-formatted/added comments in prologues of key subroutines
527      to work with protex
528    
529    checkpoint40
530    o moved calc_gs, calc_gt and calc_tr1 back to model/src
531    o added FLT (floats) package from Arne along with demo. experiment
532    o re-arranged Adams-Bashforth scheme for tracers to allow easier
533      implementation of forward-in-time forcing terms
534    o more mods for non-linear free-surface including new variable
535    o modified multi-dim method to work on cube
536    o bug fix in KPP (from DM)
537    
538    checkpoint40pre9
539    o added DST advection schemes
540    o fix MPI bug on SGI's
541    o modifications for non-linear free-surface
542    o fixed conditionals for fixed flow/passive tracer only mode
543    o added tension/strain form of stress tensor
544    o changes to commenting of arguments for TAF/TAMC
545    o added/updated many matlab scripts
546    o added multi-dimensional advection method for tracers
547      
548    checkpoint40pre8
549    o new package rw/
550      Added method for dumping intermediate local arrays:
551      mdsio_writetile - same as mdsio_writefield except works from inside
552                        bi,bj loop
553      mdsio_writelocal - same as mdsio_writetile except works for local
554                         arrays
555      write_local_r? - higher-level wrapper for mdsio_writelocal
556      Controlled by diagFreq. Defaults to zero (ie. no dumps)
557      Example given at end of mom_vecinv.F that dumps some local arrays.
558    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
559      control flux-form versus vector invariant code.
560      Switch is runtime flag vectorInvariantMomentum (defaults to false)
561      or genmake -DISABLE ...
562    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
563      (additional storing is now needed for case vecinv;
564      currently nothing implemented to switch this storing off
565      in case fluxform is used since no CPP flag available).
566    
567    checkpoint40pre7
568    o bug fix in dynamics.F
569      calc_viscosity called before k=1,Nr loop.
570    o added some #ifdef's ALLOW_PASSIVE_TRACER
571    o cleaned initialisations in ctrl_map_ini
572      related to TAF
573    
574    checkpoint40pre6
575    o split dynamics into thermodynamics & dynamics
576    o corresponding split of calc_diffusivity into
577      calc_diffusivity, calc_viscosity
578      (kpp_calc_diff, kpp_calc_visc).
579    o Added diffkr, kapgm to control variables
580    o bug fix in gmredi_slope_limit for ldd97
581    
582    checkpoint40pre5
583    o proper initialization of Adams-Bashforth time stepping
584      + uses forward step for very first step of model (iter=0)
585    o re-generated *all* output since almost all output is modified by this
586      change (sorry but we've been putting this one off for about 2 years)
587      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
588        *not* regenerated since they are already out of date and I don't
589        want to create the impression that they are suddenly working.
590    o removed KAP stuff for DEC's
591    o modified/added many .cvsignore files in */code and */input
592    o added new expt "solid-body.cs-32x32x1"
593      + this uses an alternative form of ini_curvilinear_grid.F which
594        is not necessarily any better than the current one...
595    
596    checkpoint40pre4
597    o added re-initialisations of utrans,vtrans,rtrans in
598      calc_common_factors which are crucial for TAF.
599    o extended iMin,jMin range for calc_common_factors,
600      calc_diffusivity
601    o added option ALLOW_PASSIVE_TRACER
602    o a few minor updates and fixes
603    
604    checkpoint40pre3
605    o created calc_gtr1.F for gad package
606    o split the_main_loop and re-introduced forward_step
607    o some recomputations of nIter0 for TAMC
608    
609    checkpoint40pre2
610    o Updated to latest branch of AJA, JMC
611    o Added gradient check package
612    o Added routines for passive tracer handling
613    o Added carbon sequestration sensitivity experiment
614    
615    checkpoint39
616     o Modifications and fixes to support TAMC
617       (mainly missing or wrong directives)
618     o Corrected common blocks when fooling TAMC to produce adjoint I/O
619       in addummy_in_stepping
620     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
621     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
622     o Included following packages:
623       cal: calendar
624       exf: external forcing
625       ecco: essential routines to control use of cal, exf
626             (NB: this is not the full ECCO environment)
627     o disabled some packages by default in genmake
628    
629    checkpoint38
630     o see notes_c37_adj.txt
631     o corrected wrong layer index in external_forcing_t
632     o replaced the_main_loop/forward_step by the_main_loop
633     o removed forceoutput from write_state
634       (replaced criteria for initial/final state)
635     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
636    
637    checkpoint37
638     o mdsio.F routine split and packaged in pkg/mdsio
639       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
640        used unless genmake -disable=mdsio)
641     o allow a more precise surface-geopotential gradient for the atmosphere
642       taking into account the change in space of Alpha (=1/rho) at the surface.
643     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
644       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
645     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
646       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
647       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
648     o Time-Average diagnostics defined as a pseudo package "timeave".
649     o pickup files : old pickup (before c35) did not work with new code (c35
650       and after) unless activating 2 commented lines in initialise-varia.
651     o Non-Hydrostatic pickup file Pb fixed.
652     o bug with Rigid-lid version (since c35) fixed.  
653    
654    checkpoint36
655     o implement Crank-Nickelson barotropic time-stepping
656     o recover Time-Average diagnostics
657     o fix Pb in checkpoint (PR#19)
658     o AIM become a standard package ; clean unused CPP_kees
659    
660    checkpoint35
661     o subtantial rewrite of dynamics.f
662     o allows staggered time-stepping
663     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
664     o added bottom drag (linear + quadratic)
665    
666    checkpoint34
667     o Modified exchange routines for correct reverse simulation.
668     o Added verification output to comply with bug fix in impldiff.F
669       as of c33 (exp2, natl_box).
670     o Corrected store directives in dynamics.F
671     o Corrected array boundaries in impldiff.F
672     o Corrected array dimensions in gmredi.
673       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
674     o Added routine GLOBAL_SUM_INT to global_sum.F
675     o Added mdsio_gl.F for ECCO purposes.
676    
677    checkpoint33
678     o Fixed bug in lower BC in impldiff.F
679     o Fixed confusion about units of forcing arrays in FFIELDS.h
680       namely Fu,Fv,Qnet,Qsw,EmPmR:
681       - Removed verification/natl_box/code/external_fields_scale.F
682         (did not differ from that in model/src)
683       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
684         (see FFIELDS.h for description)
685       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
686         kpp_calc.F and kpp_transport_t.F
687       - Removed model/src/external_fields_scale.F and calls to it
688       - verification/natl_box uses flux data with "atmospheric" sign so
689         a special version of external_fields_load.F is used to
690         change the data as it's read in. This way, the arrays
691         have the right units and signs at all times tha a user could
692         possibly use them.
693     o Corrected genmake to delete a temporary file during configuration
694    
695    checkpoint32
696     o Scaling of forcing fields moved from external_forcing.F to
697       external_fields_scale.F, called directly after loading fields.
698     o Surface relaxation terms added to surface tendency fields in
699       extra subroutine.
700     o impldiff.F changed to avoid storing by TAMC of huge intermediate
701       fields.
702     o Changes in GMRedi to comply with packaging structure.
703     o Modifications and bug fixes in KPP package.
704     o Verification experiment for KPP added (verification/nat_box/)
705    
706    checkpoint31
707     o Packages interface brought in line with defined standard
708       -> new routines packages_...F
709       -> changes in initialise_fixed.F, initialise_varia.F
710       -> enables initialisation interface for ECCO package
711     o Rescaling of external forcing fields immediately after read
712       (removed from external_forcing.F)
713       -> new: surface_fields_scale.F
714       -> affects ini_foorcing.F, external_fields_load.F
715     o Computation of surface tendencies before tendency updates.
716       -> new: external_forcing_surf.F
717     o Change of variable names useGMRedi, useKPP, useECCO
718     o Further changes in dynamics.F, impldiff.F for TAMC
719     o Tested for experiments 0, 2, 4.
720       - not yet tested for GMRedi.
721       - not yet tested for KPP.
722    
723    checkpoint30
724     o Updates for OBCs
725     o New experiment for test OBCs (internal_wave)
726     o New output.txt in verification/exp4/results/
727     o Updates for KPP: calculation of viscosity corrected, new variables
728       kpp_dumpFreq and kpp_taveFreq
729     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
730       and entry for T90 in genmake
731    
732    checkpoint29
733     o packaged KPP and GM/Redi
734    
735    checkpoint28
736     o Corrected initialization of hFacMin for difference vertical coordinates
737     o Modified calculation of partial cell thickness to more robust algorithm
738     o config_summary.F: replaced write_1D_... by write_0D_...
739       read_write.F: added subroutines write_0D_...
740     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
741       included some initialisations required for TAMC.
742     o routine calc_isoslopes: modified sqrt computation to make it
743       differentiable for zero argument.
744     o routines dynamics, impldiff:
745       included store directives and tape key computations required for TAMC.
746     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
747    
748    checkpoint27
749     o fixed calc_isoslopes() to so that cancellation of terms in tensor
750       formulation works properly with variable resolution.
751     o restructured the calling tree between the_model_main() and dynamics()
752     o split initialise() into initialise_fixed() and initialise_varia()
753     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
754       in new routine ini_psurf()
755    
756    checkpoint26
757     o moved some #ifdef in optional routines to encompass everything
758       except the argument declarations. This was using up some memory.
759     o fixed macros like _ADT to work with both versions of Linux cpp
760     o cleaned up some unused and uninitialized variables
761       (helps when debugging with strict compile options)
762     o split up CPP_EEOPTIONS.h into options and macros
763       (macros are now in eesupp/inc/CPP_EEMACROS.h)
764     o patch for 2 processor JAM mode
765    
766    checkpoint25
767     o updates for OBCs and NH
768     o dramatically reduced memory usage
769     o added "JAM" routines for use on Artic network
770     o parameterization of convection by implicit vertical diffusion
771     o added a diagnostic of convective index
772     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
773       (this is was partly for OBCs and NH but also in anticipation of
774        an explicit free-surface option)
775     o initial state input files for U and V
776    
777    checkpoint24
778     o Removed some spurious "REAL"s
779     o Updated KPP to latest version from JPL
780     o Added a COS(latitude) in horizontal viscosity
781    
782    checkpoint23
783     o Added del^4 diffusion for salt and temperature
784     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
785    
786    checkpoint22
787     o Made many small changes: implicit none, format(i5), etc...
788     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
789    
790    checkpoint21
791     o Introduced new I/O package that supports direct-access records (mdsio.F)
792     o Split-up mid-level I/O routines
793     o Updated input data for experiments 0,1,2,4 and 5
794     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
795    
796    checkpoint20
797     o Tidied up open-boundaries some more
798     o Added non-hydrostatic code
799     o Fixed some input data
800     o Modified MPI start-up to work in "coupled" context.
801    
802    checkpoint19
803     o Tidied up directory structure for verification experiments.
804     o Added new code for open boundaries.
805     o Corrected advective terms near boundaries.
806     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
807     o Implemented free-slip/no-slip BCs and del^4 dissipation.
808     o Split default parameters out of ini_parms.F into set_defaults.F.
809    
810    checkpoint18
811     o Further changes for optional code generation with
812       CPP - ugh!
813    
814    checkpoint17
815     o Beginning to incorporating modularity
816       for supporting atmos. and ocean configs.
817     o Small changes for TAMC complinace
818     o New ultra simple test case. Barotropic box
819       configuration "exp0".
820    
821    checkpoint16
822     o Minor changes to exchange routines to support
823       accumulation in reverse mode. Adjoint of an
824       assignment is an addition.
825     o Changes to support compilation by TAMC (LR(1)
826       syntax) and by g77 under Linux ( 72 character
827       limit ).
828    
829    checkpoint15
830     Rewrote exchange routines to allow
831     o General tile <-> tile connectivity.
832     o TAMC reverse mode flag ( is this really needed? )
833     o Variable width overlap and exchange region widths.
834     o Hooks for sharing data via DMA, Arctic, Memory Channel,
835       shmput/shmget, VIA, SYSV shmem and every other cool
836       communication method.
837    
838    checkpoint14
839     Consistent isomorphism chages made. These allow dynamical core
840     to support both pressure and meters as a vertical coordinate.
841    
842    checkpoint13
843     Release which corrects global_max problem and a couple
844     of KGM time-averaging diagnostic errors. Also contains
845     a double-gyre experiment setup as well as the baseline
846     4 degree global template. The double gyre template is
847     organised to allow it to be applied automatically to
848     the baseline configuration.
849    
850    branch-point-rdot
851     A few tidy-ups have been made bt the real point of this
852     check-point (excuse the pun) is to allow a branch to be
853     made for the purposes of adding the rDot alterations.
854     I don't want to commit the rDot to the main-trunk until
855     we've actually tested it...
856    
857    checkpoint12
858     Tidy up and added generic genmake script (formerly
859     configure script).
860     Released to testers.
861    
862    checkpoint11
863     Re-arranged initialise() and introduced ini_vertical_grid()
864     and ini_masks_etc().
865    
866    checkpoint10
867     Introduced the configure script.
868     Separated out the diags package.
869     Added template for writing time-averages of tile/intermediate quantities.
870     Updated SIZE.h in exp2 and made the data big-endian.
871    
872    checkpoint9
873     MPI fix. Filename changes (meta/data). salbin*y stuff.
874     General tidy-up.
875     SST.bin SSS.bin added to verification/exp2
876    
877  checkpoint8  checkpoint8
878   Inludes time-dependant forcing and time-averaging.   Inludes time-dependant forcing and time-averaging.

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