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revision 1.6 by adcroft, Mon Jun 22 16:09:37 1998 UTC revision 1.107 by cheisey, Mon Dec 2 13:28:30 2002 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint47a_post
7    o new pkg: aim_v23
8     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
9       for now, keep the same surface forcing as before.
10     - Part-Cell implemented into AIM; check that Heat & Water are conserved
11     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
12     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
13    o add diagnostic of surface correction term in monitor output
14    
15    o bulk_force and therm_seaice
16    - Two packages:  bulk_force (Bulk forcing)
17      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
18    - Earlier integration from Stephaine Dutkiewicz
19      and Patrick Heimbach.
20    - Two ifdef statements for compile time,
21       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
22    
23    checkpoint47
24    differentiable version of checkpoint46n_post
25    o bug fix in quasihydrostaticterms
26    o * "clean" adjoint code (in terms of extensive recomputations)
27        can now be obtained for all GMREDI options (i.e. for
28        - GM_VISBECK_VARIABLE_K
29        - GM_NON_UNITY_DIAGONAL
30        - GM_EXTRA_DIAGONAL
31        - GM_BOLUS_ADVEC )
32      * However, wrong gradient check problem remains unsolved.
33      * New CPP options have been introduced for different
34        tapering schemes
35    o external_fields_load now part of differentiation list
36    o pressure needs multiple storing;
37      would be nice to have store_pressure at beginning or
38      end of forward_step, e.g. by having phiHyd global (5-dim.)
39      (NB: pressure is needed for certain cases in find_rho,
40      which is also invoked through convective_adjustment).
41    o recomputations in find_rho for cases
42     'JMD95'/'UNESCO' or 'MDJWF' are OK.
43    o #define ATMOSPHERIC_LOADING should be differentiable
44    o ini_forcing shifted to begining of initialise_varia
45    o Incorporating QNVS line search routines into MITgcm
46      (this is separate code, and therefore not under pkg)
47      lsopt/, optim/
48    o Updated verification/carbon/
49      - #define GM_VISBECK_VARIABLE_K
50      - GM_taper_scheme    = 'ldd97'    
51    
52    checkpoint46n_post
53    Merging from release1_p8:
54    o verification/natl_box:
55      updating new external_fields_load routine
56    o New package: pkg/seaice
57      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
58      The sea-ice code is based on Hibler (1979-1980).
59      Two sea-ice dynamic solvers, ADI and LSR, are included.
60      In addition to computing prognostic sea-ice variables and diagnosing
61      the forcing/external data fields that drive the ocean model,
62      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
63      The implied surface heat flux is then stored in variable
64      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
65      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
66      non-local transport term.  Because this call precedes model
67      thermodynamics, temperature under sea-ice may not be "exactly" at
68      the freezing point by the time theta is dumped or time-averaged.
69      N.B.: fairly large differences in accuracy occur across
70            different platforms/compilers; comparison between
71            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
72            generated output gives:
73       T           S           U           V
74      C D M    c        m  s        m  s        m  s        m  s
75      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
76      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
77      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
78    
79      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
80    o GAD:
81      - generated new common blocks to account for call of
82        same gad routines with differing traceridentities
83        (needed to modify tracerIdentity indices in GAD.h)
84      - generated separate common blocks for case useCubedSphereExchange
85        (Department of Futurology)
86      - parameter lists to gmredi_?transport: added tracerIdentity
87      - added new key indices to tamc.h
88    o external_fields_load:
89      - added this routine to TAF list
90      - needed to make some common blocks global and additional storing
91        along the same lines as exf package (checkpoint_lev?_directives.h)
92    o exf:
93      updated external forcing package
94      - bug fixes carried over from ecco-branch
95        (missing OBCS_OPTIONS.h in two routines)
96      - enable easy to use "no forcing".
97      - added exf I/O for atmospheric loading
98      - added exf I/O for runoff data
99      - transfered scaling between exf <-> MITgcm to exf namelist
100    o Adding new verification experiment global_with_exf.
101      This verification experiment is almost identical to the
102      global_ocean.90x40x15 experiment, except that it uses
103      the exf (and cal) package instead of the
104      external_fields_load routine (cf README file).
105    
106    checkpoint46m_post
107    o modified testscript to return -- when there are no lines of "%MON" output
108    o added new flag "quasiHydrostatic" for QH mode
109      and new routine quasihydrostaticterms()
110    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
111      New routine: mom_u_coriolis_nh()
112    o fixed sign of non-hydrostatic metric terms in u and v equations.
113      Depend on correct sign of gravitySign.
114    o added work.pc* to .cvsignore in aim directories using ifc
115    o introduced flag for controllin non-hydrostatic metric terms
116    o removed gravitySign from PARM04
117    o switched to g77/ifc from pgf77 in aim experiments
118    
119    checkpoint46l_post
120    o made convective adjustment work with pressure coordinates:
121     - changed the direction of k-loop in convective_adjustment.F for the
122       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
123     - adjusted the reference pressure k-index in convective_adjustment.F
124     - adjusted the convection condition in convect.F (in analogy to
125       calc_ivdc.F)
126     - convective_adjustment no longer computes anything on the halos
127     - removed the warnings about negative salinity from find_rho.F and
128       find_alpha.F; instead the new routine look_for_neg_salinity, called
129       at the beginning of find_rho, find_alpha, and find_beta, does a
130       check of the entire slice, if CPP-option
131       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
132    checkpoint46l_pre
133    
134    checkpoint46k_post
135    o fixed the verification/global_ocean.90x40x15 experiment:
136     - new bathymetry (the world according to A., JMC, and M.)
137     - new initial fields and forcing fields (*.bin files)
138     - new POLY3.COEFFS (for the next release one should switch to a full
139       equation of state: JMD95P or MDJWF)
140     - fixed several errors and redundancies in the data file
141     - experiment uses looped cells
142     - added matlab directory with diagnostic scripts for plotting of output
143    
144    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
145     - read AIM physics parameters from a file (data.aimphys)
146     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
147    
148    checkpoint46j_post
149    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
150    o move wVel computation at the end of the time step, in S/R integr_continuity
151    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
152    o update timeave pkg for wVel diagnostic.
153    checkpoint46j_pre
154    
155    checkpoint46i_post
156    o Clean up AIM package (and keep the results unchanged):
157      include CPP_OPTION and use IMPLICT NONE in all routines ;
158      declare all the variables _RL ; use _d 0 for all numerical constants.
159      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
160    
161    checkpoint46h_post
162    o cleaned up the use of rhoNil and rhoConst.
163      - rhoNil should only appear in the LINEAR equation of state, everywhere
164        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
165        and the dynamical equations are all divided by rhoConst
166    o introduced new parameter rhoConstFresh, a reference density of fresh
167      water, to remove the fresh water flux's dependence on rhoNil. The default
168      value is 999.8 kg/m^3
169    o cleanup up external_forcing.F and external_forcing_surf.F
170      - can now be used by both OCEANIC and OCEANICP
171    checkpoint46h_pre
172    
173     Added code to convert surface volume flux (fresh water) into
174     a mass flux when using P coordinates in the ocean (OCEANICP).
175     Note: It assumes you have set rho0=rhoConst=density of fresh water.
176    
177    checkpoint46g_post
178    o Include a new diagnostic variable phiHydLow for the ocean model
179      - in z-coordinates, it is the bottom pressure anomaly
180      - in p-coordinates, it is the sea surface elevation
181      - in both cases, these variable have global drift, reflecting the mass
182        drift in z-coordinates and the volume drift in p-coordinates
183      - included time averaging for phiHydLow, be aware of the drift!
184    o depth-dependent computation of Bo_surf for pressure coordinates
185      in the ocean (buoyancyRelation='OCEANICP')
186      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
187        Theta, Salinity, and Pressure in the parameter list. This routine is
188        presently contained in find_rho.F. This routine does not give the
189        correct density for 'POLY3', which would be a z-dependent reference
190        density.
191    o cleaned up find_rho
192      - removed obsolete 'eqn' from the parameter list.
193    o added two new verification experiments: gop and goz
194      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
195    checkpoint46g_pre
196    
197    checkpoint46f_post
198    o Enable tangent linear (forward mode) gradient checks:
199      - extended active file handling to g_... files
200      - added TANGENT_SIMULATION to theSimulationMode
201      - extended grdchk package accordingly
202    o added tangent linear setup in verification/carbon/code_ftl
203    o added adjoint setup in verification/front_relax/code_ad
204    
205    checkpoint46e_post
206    o Added new equation of state -> MDJWF
207      - EOS of McDougall et al., 2002, JAOT, submitted
208      - caveat: the equation of state is only valid for a smaller (more
209        realistic?) range of values than JMD95P/Z and UNESCO
210      - added masks to the calculation of pressure in store_pressure
211      - added more check values for density in check_eos (ini_eos.F), some of
212        the old check values are out of the range of the MDJWF-eos, so don't
213        expect perfect matches for those
214    checkpoint46e_pre
215    
216    checkpoint46d_post
217    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
218      'OCEANICP', also initialised field pressure correctly in ini_eos in the
219      case of pressure coordinates. eosType='JMD95Z' in
220      combination with buoyancyRelation='OCEANICP' now causes an error.
221    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
222      in find_alpha/beta.
223    checkpoint46d_pre
224    
225    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
226      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
227    
228    checkpoint46c_post
229    o Changes necessary for ocean in p-coordinates
230     -  Added new buoyancy relation = 'OCEANICP'
231     -  Added new parameters = gravitySign (this used to be contained inside
232        the factor dRdZ which I added when we first switched to R coordinates).
233     X GM/Redi is not compatible (yet)
234     X bottom drag and no-slip need to be debugged.
235    checkpoint46c_pre
236    
237    checkpoint46b_post
238    o Added new equation of state -> JMD95Z and JMD95P
239      - EOS of Jackett and McDougall, 1995, JAOT
240      - moved all EOS parameters into EOS.h
241      - new routines ini_eos.F, store_pressure.F
242    o Added UNESCO EOS, but not recommended because it requires
243      in-situ temperature (see JMD95)
244    o Modified formatting for knudsen2.f in utils/knudsen2 and added
245      unesco.f to be used with POLY3
246    checkpoint46b_pre
247    
248    checkpoint46a_post
249    o Added (atmospheric) pressure loading
250      - new field in FFIELDS.h, etc...
251      - new cpp flag ATMOSPHERIC_LOADING
252    o Changed hFacC to _hFacC in calc_phi_hyd.F
253    o Added SHORTWAVE_HEATING to some files for consistency
254    checkpoint46a_pre
255    
256    checkpoint46
257    further merges from release1_p5
258    o new ctrl package
259      - adopted from ECCO environment to enable optimization
260      - added Eliassen Palm fluxes to controls
261    o added Eliassen Palm flux controls to gradient check package
262    o cost package
263      - Compatible with new ctrl package
264      - added Eliassen Palm cost hooks
265      - modif's of existing cost functions
266    o Adjoint-related bug fixes in kpp:
267      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
268      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
269    o autodiff package
270      - flow directives:
271        + new for S/R do_the_model_io
272        + enhanced for S/R checkpoint
273        + new gmredi.flow
274      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
275        disable adcommon.h/g_common.h by default.
276      - fixed problem for adjoint of global_max
277    o modified verification/carbon/
278    o New setup for adjoint of global_ocean
279    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
280    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
281    o incorporated hooks for sponge layer code (external_forcing.F)
282    
283    checkpoint45d_post
284    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
285    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
286      (affects plume_on_slope "cg2d" output)
287    o add new parameter deltaTfreesurf for free-surface time stepping
288    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
289    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
290    o change phiMin in exp1 (to agree with documentation)
291    o add new flags:
292     - T,S forcing inside/outside Adams-Bashforth
293     - turn off temp,salt advection and/or forcing
294     - for each tracer, define internal flag for multiDimAdvection & A-B
295    o monitor: change definition of KE to check conservation of Energy
296    
297    checkpoint45c_post
298    o Removed f90 comments ("!")
299    o Modified initialisations to enable exf package for MITgcm
300      (without invoking ECCO_PACKAGE).
301    o modifications to gradient check package (Martin Losch)
302      - enable centered differences
303      - modified format of standard output
304    
305    checkpoint45b_post
306    o cleaned exchange calls in cg2d
307    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
308    o included CPP option SINGLE_LAYER_MODE in thermodynamics
309      to configure barotropic setup (Martin Losch)
310    o moved some initialisations within bi,bj loop in dynamics
311      (TAF flow dependency)
312    o in initialise_varia, moved call packages_init_variables
313      before convective_adjustment_init
314      (corresponding adjustment of TAF tape initialisation).
315    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
316    
317    checkpoint45a_post
318    o compute Rho over the whole domain (extend iMin,jMin indices)
319    o specific exchange for X-slice domain (case Ny=1)
320    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
321    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
322    
323    checkpoint44h_post = checkpoint45
324    o Fix to restore differentiability:
325      place at which packages_init_variables is called in
326      initialise_varia is crucial for reverse control flow.
327    o modifications in GMRedi to enable stable adjoint
328      (corresponding modif's in thermodynamics, dynamics)
329    o added missing hook for sponge layer code in external_forcing
330    o modified test cost functions
331    o storing in gad_advection (plus removal of write(0,*)!
332    o missing headers TR1.h added in convective_adjustment routines
333    o errorMessageUnit set non-equal zero in eeboot
334      (conflict on some platforms, e.g. IBM SP3)
335    o modified carbon verif.
336    
337    checkpoint44h_pre
338    o vertical grid option: allow to put the Interface at the middle between
339      2 cell-centers ; replace delZ in pkg/kpp by drF.
340    o GM Advective form: Tracers are advected using the residual transport (=
341      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
342    
343    checkpoint44g_post
344    o fix surface correction term in multiDimAdvection (affects plume_on_slope
345      results) ; ifdef missing in thermodynamics.F
346    
347    checkpoint44f_pre,checkpoint44f_post
348    o added PTRACERS package
349      This allows an arbitrary number of passive tracers to be integrated
350      forward simultaneously with the dynamicaly model.
351      + Implemented so far:
352        - basic forward algorithm (time-stepping, advection, diffusion, convection)
353        - I/O and checkpointing
354        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
355      + Not implemented so far:
356        - KPP
357        - OBCS
358      + No specific example supplied (yet) but global_ocean.90x40x15 has the
359        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
360        line in data.pkg.
361      + This package is disabled by default since it increases storage.
362    
363    
364    o testscript: added -cleanup option
365    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
366                 b) enable to filter 2D fields.
367    
368    checkpoint44e_pre,post
369    o re-wrote convective adjustment to use pre-calculated weights
370      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
371      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
372      Original calls to convect() still in place.
373    
374    chkpt44d_pre,post
375    o added missing EXCLUDE_MONITOR flags
376    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
377      (incompatible typ in MIN/MAX expressions caused problems
378      on IBM SP3)
379    o in genmake added variable MAKEDEPEND
380      plus resetting for case SunOS
381    o added timer_stats.c routine for IBM SP3
382    o removed variables in dynamics
383    !!! I forgot to create tag chkpt44d_pre !!!
384    !!! But chkpt44d_pre = chkpt44c_post    !!!
385    
386    o real fresh water flux implemented with non-linear free-surface.
387    
388    chkpt44c_pre,post
389    o few fix (mask in shap_s2, EmPmR in external_field_load,
390      USE_NATURAL_BCS in solve_for_P);
391    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
392    
393    checkpoint44b_pre/_post
394    o merge of relevant stuff from the ecco-branch:
395      - genmake: removed $S64 overwrite for case SunOS
396      - pkg/exf: update and corrections for field swapping and obcs
397      - pkg/ecco: parameter lists for the_model_main, the_main_loop
398                  harmonized between ECCO and MITgcm
399      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
400                      updated checkpointing_lev... lists for obcs
401      - model/src: minor changes in forward_step, plot_field
402                   added directive for divided adjoint in the_main_loop
403      - pkg/mdsio: added mdsio_gl_slice
404    
405    o check parameters & config (chkpt44a_pre,post)
406    o OBC and NonLin_FrSurf.
407    
408    checkpoint44
409    o fix bug in mom_vi_del2uv
410    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
411    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
412    o update AIM experiments (NCEP input files)
413    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
414    o added some stuff for AD
415    
416    checkpoint43
417    o added two new advection tests
418    o added global 4x4 degree ocean test
419    o added test of H&S94 with free surface on cube
420    o some final mods for gradient check, adjoint,...
421    
422    checkpoint42
423      Fixed AD-related problems:
424    o Store directives up-to-date with re-arranged Adams-Bashforth
425      (mainly thermodynamics.F)
426    o New store directives for multi-dim. advection schemes
427      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
428      * new common block and key passkey
429      (mainly gad_advection.F)
430    o Modified store directives for split of dynamics/thermodynamics
431      for the case ALLOW_KPP
432    o Cleaned argument list for timestep_tracer.F
433    
434    checkpoint41
435    o re-formatted/added comments in prologues of key subroutines
436      to work with protex
437    
438    checkpoint40
439    o moved calc_gs, calc_gt and calc_tr1 back to model/src
440    o added FLT (floats) package from Arne along with demo. experiment
441    o re-arranged Adams-Bashforth scheme for tracers to allow easier
442      implementation of forward-in-time forcing terms
443    o more mods for non-linear free-surface including new variable
444    o modified multi-dim method to work on cube
445    o bug fix in KPP (from DM)
446    
447    checkpoint40pre9
448    o added DST advection schemes
449    o fix MPI bug on SGI's
450    o modifications for non-linear free-surface
451    o fixed conditionals for fixed flow/passive tracer only mode
452    o added tension/strain form of stress tensor
453    o changes to commenting of arguments for TAF/TAMC
454    o added/updated many matlab scripts
455    o added multi-dimensional advection method for tracers
456      
457    checkpoint40pre8
458    o new package rw/
459      Added method for dumping intermediate local arrays:
460      mdsio_writetile - same as mdsio_writefield except works from inside
461                        bi,bj loop
462      mdsio_writelocal - same as mdsio_writetile except works for local
463                         arrays
464      write_local_r? - higher-level wrapper for mdsio_writelocal
465      Controlled by diagFreq. Defaults to zero (ie. no dumps)
466      Example given at end of mom_vecinv.F that dumps some local arrays.
467    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
468      control flux-form versus vector invariant code.
469      Switch is runtime flag vectorInvariantMomentum (defaults to false)
470      or genmake -DISABLE ...
471    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
472      (additional storing is now needed for case vecinv;
473      currently nothing implemented to switch this storing off
474      in case fluxform is used since no CPP flag available).
475    
476    checkpoint40pre7
477    o bug fix in dynamics.F
478      calc_viscosity called before k=1,Nr loop.
479    o added some #ifdef's ALLOW_PASSIVE_TRACER
480    o cleaned initialisations in ctrl_map_ini
481      related to TAF
482    
483    checkpoint40pre6
484    o split dynamics into thermodynamics & dynamics
485    o corresponding split of calc_diffusivity into
486      calc_diffusivity, calc_viscosity
487      (kpp_calc_diff, kpp_calc_visc).
488    o Added diffkr, kapgm to control variables
489    o bug fix in gmredi_slope_limit for ldd97
490    
491    checkpoint40pre5
492    o proper initialization of Adams-Bashforth time stepping
493      + uses forward step for very first step of model (iter=0)
494    o re-generated *all* output since almost all output is modified by this
495      change (sorry but we've been putting this one off for about 2 years)
496      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
497        *not* regenerated since they are already out of date and I don't
498        want to create the impression that they are suddenly working.
499    o removed KAP stuff for DEC's
500    o modified/added many .cvsignore files in */code and */input
501    o added new expt "solid-body.cs-32x32x1"
502      + this uses an alternative form of ini_curvilinear_grid.F which
503        is not necessarily any better than the current one...
504    
505    checkpoint40pre4
506    o added re-initialisations of utrans,vtrans,rtrans in
507      calc_common_factors which are crucial for TAF.
508    o extended iMin,jMin range for calc_common_factors,
509      calc_diffusivity
510    o added option ALLOW_PASSIVE_TRACER
511    o a few minor updates and fixes
512    
513    checkpoint40pre3
514    o created calc_gtr1.F for gad package
515    o split the_main_loop and re-introduced forward_step
516    o some recomputations of nIter0 for TAMC
517    
518    checkpoint40pre2
519    o Updated to latest branch of AJA, JMC
520    o Added gradient check package
521    o Added routines for passive tracer handling
522    o Added carbon sequestration sensitivity experiment
523    
524    checkpoint39
525     o Modifications and fixes to support TAMC
526       (mainly missing or wrong directives)
527     o Corrected common blocks when fooling TAMC to produce adjoint I/O
528       in addummy_in_stepping
529     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
530     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
531     o Included following packages:
532       cal: calendar
533       exf: external forcing
534       ecco: essential routines to control use of cal, exf
535             (NB: this is not the full ECCO environment)
536     o disabled some packages by default in genmake
537    
538    checkpoint38
539     o see notes_c37_adj.txt
540     o corrected wrong layer index in external_forcing_t
541     o replaced the_main_loop/forward_step by the_main_loop
542     o removed forceoutput from write_state
543       (replaced criteria for initial/final state)
544     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
545    
546    checkpoint37
547     o mdsio.F routine split and packaged in pkg/mdsio
548       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
549        used unless genmake -disable=mdsio)
550     o allow a more precise surface-geopotential gradient for the atmosphere
551       taking into account the change in space of Alpha (=1/rho) at the surface.
552     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
553       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
554     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
555       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
556       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
557     o Time-Average diagnostics defined as a pseudo package "timeave".
558     o pickup files : old pickup (before c35) did not work with new code (c35
559       and after) unless activating 2 commented lines in initialise-varia.
560     o Non-Hydrostatic pickup file Pb fixed.
561     o bug with Rigid-lid version (since c35) fixed.  
562    
563    checkpoint36
564     o implement Crank-Nickelson barotropic time-stepping
565     o recover Time-Average diagnostics
566     o fix Pb in checkpoint (PR#19)
567     o AIM become a standard package ; clean unused CPP_kees
568    
569    checkpoint35
570     o subtantial rewrite of dynamics.f
571     o allows staggered time-stepping
572     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
573     o added bottom drag (linear + quadratic)
574    
575    checkpoint34
576     o Modified exchange routines for correct reverse simulation.
577     o Added verification output to comply with bug fix in impldiff.F
578       as of c33 (exp2, natl_box).
579     o Corrected store directives in dynamics.F
580     o Corrected array boundaries in impldiff.F
581     o Corrected array dimensions in gmredi.
582       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
583     o Added routine GLOBAL_SUM_INT to global_sum.F
584     o Added mdsio_gl.F for ECCO purposes.
585    
586    checkpoint33
587     o Fixed bug in lower BC in impldiff.F
588     o Fixed confusion about units of forcing arrays in FFIELDS.h
589       namely Fu,Fv,Qnet,Qsw,EmPmR:
590       - Removed verification/natl_box/code/external_fields_scale.F
591         (did not differ from that in model/src)
592       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
593         (see FFIELDS.h for description)
594       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
595         kpp_calc.F and kpp_transport_t.F
596       - Removed model/src/external_fields_scale.F and calls to it
597       - verification/natl_box uses flux data with "atmospheric" sign so
598         a special version of external_fields_load.F is used to
599         change the data as it's read in. This way, the arrays
600         have the right units and signs at all times tha a user could
601         possibly use them.
602     o Corrected genmake to delete a temporary file during configuration
603    
604    checkpoint32
605     o Scaling of forcing fields moved from external_forcing.F to
606       external_fields_scale.F, called directly after loading fields.
607     o Surface relaxation terms added to surface tendency fields in
608       extra subroutine.
609     o impldiff.F changed to avoid storing by TAMC of huge intermediate
610       fields.
611     o Changes in GMRedi to comply with packaging structure.
612     o Modifications and bug fixes in KPP package.
613     o Verification experiment for KPP added (verification/nat_box/)
614    
615    checkpoint31
616     o Packages interface brought in line with defined standard
617       -> new routines packages_...F
618       -> changes in initialise_fixed.F, initialise_varia.F
619       -> enables initialisation interface for ECCO package
620     o Rescaling of external forcing fields immediately after read
621       (removed from external_forcing.F)
622       -> new: surface_fields_scale.F
623       -> affects ini_foorcing.F, external_fields_load.F
624     o Computation of surface tendencies before tendency updates.
625       -> new: external_forcing_surf.F
626     o Change of variable names useGMRedi, useKPP, useECCO
627     o Further changes in dynamics.F, impldiff.F for TAMC
628     o Tested for experiments 0, 2, 4.
629       - not yet tested for GMRedi.
630       - not yet tested for KPP.
631    
632    checkpoint30
633     o Updates for OBCs
634     o New experiment for test OBCs (internal_wave)
635     o New output.txt in verification/exp4/results/
636     o Updates for KPP: calculation of viscosity corrected, new variables
637       kpp_dumpFreq and kpp_taveFreq
638     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
639       and entry for T90 in genmake
640    
641    checkpoint29
642     o packaged KPP and GM/Redi
643    
644    checkpoint28
645     o Corrected initialization of hFacMin for difference vertical coordinates
646     o Modified calculation of partial cell thickness to more robust algorithm
647     o config_summary.F: replaced write_1D_... by write_0D_...
648       read_write.F: added subroutines write_0D_...
649     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
650       included some initialisations required for TAMC.
651     o routine calc_isoslopes: modified sqrt computation to make it
652       differentiable for zero argument.
653     o routines dynamics, impldiff:
654       included store directives and tape key computations required for TAMC.
655     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
656    
657    checkpoint27
658     o fixed calc_isoslopes() to so that cancellation of terms in tensor
659       formulation works properly with variable resolution.
660     o restructured the calling tree between the_model_main() and dynamics()
661     o split initialise() into initialise_fixed() and initialise_varia()
662     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
663       in new routine ini_psurf()
664    
665    checkpoint26
666     o moved some #ifdef in optional routines to encompass everything
667       except the argument declarations. This was using up some memory.
668     o fixed macros like _ADT to work with both versions of Linux cpp
669     o cleaned up some unused and uninitialized variables
670       (helps when debugging with strict compile options)
671     o split up CPP_EEOPTIONS.h into options and macros
672       (macros are now in eesupp/inc/CPP_EEMACROS.h)
673     o patch for 2 processor JAM mode
674    
675    checkpoint25
676     o updates for OBCs and NH
677     o dramatically reduced memory usage
678     o added "JAM" routines for use on Artic network
679     o parameterization of convection by implicit vertical diffusion
680     o added a diagnostic of convective index
681     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
682       (this is was partly for OBCs and NH but also in anticipation of
683        an explicit free-surface option)
684     o initial state input files for U and V
685    
686    checkpoint24
687     o Removed some spurious "REAL"s
688     o Updated KPP to latest version from JPL
689     o Added a COS(latitude) in horizontal viscosity
690    
691    checkpoint23
692     o Added del^4 diffusion for salt and temperature
693     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
694    
695    checkpoint22
696     o Made many small changes: implicit none, format(i5), etc...
697     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
698    
699    checkpoint21
700     o Introduced new I/O package that supports direct-access records (mdsio.F)
701     o Split-up mid-level I/O routines
702     o Updated input data for experiments 0,1,2,4 and 5
703     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
704    
705    checkpoint20
706     o Tidied up open-boundaries some more
707     o Added non-hydrostatic code
708     o Fixed some input data
709     o Modified MPI start-up to work in "coupled" context.
710    
711    checkpoint19
712     o Tidied up directory structure for verification experiments.
713     o Added new code for open boundaries.
714     o Corrected advective terms near boundaries.
715     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
716     o Implemented free-slip/no-slip BCs and del^4 dissipation.
717     o Split default parameters out of ini_parms.F into set_defaults.F.
718    
719    checkpoint18
720     o Further changes for optional code generation with
721       CPP - ugh!
722    
723    checkpoint17
724     o Beginning to incorporating modularity
725       for supporting atmos. and ocean configs.
726     o Small changes for TAMC complinace
727     o New ultra simple test case. Barotropic box
728       configuration "exp0".
729    
730    checkpoint16
731     o Minor changes to exchange routines to support
732       accumulation in reverse mode. Adjoint of an
733       assignment is an addition.
734     o Changes to support compilation by TAMC (LR(1)
735       syntax) and by g77 under Linux ( 72 character
736       limit ).
737    
738    checkpoint15
739     Rewrote exchange routines to allow
740     o General tile <-> tile connectivity.
741     o TAMC reverse mode flag ( is this really needed? )
742     o Variable width overlap and exchange region widths.
743     o Hooks for sharing data via DMA, Arctic, Memory Channel,
744       shmput/shmget, VIA, SYSV shmem and every other cool
745       communication method.
746    
747    checkpoint14
748     Consistent isomorphism chages made. These allow dynamical core
749     to support both pressure and meters as a vertical coordinate.
750    
751    checkpoint13
752     Release which corrects global_max problem and a couple
753     of KGM time-averaging diagnostic errors. Also contains
754     a double-gyre experiment setup as well as the baseline
755     4 degree global template. The double gyre template is
756     organised to allow it to be applied automatically to
757     the baseline configuration.
758    
759    branch-point-rdot
760     A few tidy-ups have been made bt the real point of this
761     check-point (excuse the pun) is to allow a branch to be
762     made for the purposes of adding the rDot alterations.
763     I don't want to commit the rDot to the main-trunk until
764     we've actually tested it...
765    
766    checkpoint12
767     Tidy up and added generic genmake script (formerly
768     configure script).
769     Released to testers.
770    
771    checkpoint11
772     Re-arranged initialise() and introduced ini_vertical_grid()
773     and ini_masks_etc().
774    
775    checkpoint10
776     Introduced the configure script.
777     Separated out the diags package.
778     Added template for writing time-averages of tile/intermediate quantities.
779     Updated SIZE.h in exp2 and made the data big-endian.
780    
781    checkpoint9
782     MPI fix. Filename changes (meta/data). salbin*y stuff.
783     General tidy-up.
784     SST.bin SSS.bin added to verification/exp2
785    
786  checkpoint8  checkpoint8
787   Inludes time-dependant forcing and time-averaging.   Inludes time-dependant forcing and time-averaging.
788   Works at 4x4 and 2.8125x2.8125 global   Works at 4x4 and 2.8125x2.8125 global

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