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revision 1.13 by cnh, Wed Sep 9 15:24:19 1998 UTC revision 1.126 by jmc, Thu Jan 30 00:12:34 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
7    
8    checkpoint48b_post
9    o r* coordinate added in #ifdef NONLIN_FRSURF block.
10     (modification to pressure gradient not yet implemented)
11    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
12      (for U & V) that are used for vertical advection of momentum.
13    
14    checkpoint48a_post
15    o In preparation for r*, use temp. array to compute vertical transport
16       in flux-form momentum pkg. => change results of few test-exp.
17      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
18                        lab_sea, natl_box & plume_on_slope
19    
20    checkpoint48
21    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
22    
23    checkpoint47j_post
24    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
25    o moved adexch from forward_step to addummy_in_stepping
26    o added exch in ctrl_map_...
27    o aveFreq.=0. at end of cost_final to avoid overwrite in
28      reverse checkpointing loop
29    o Yet more changes in gmredi:
30      * adgmredi_calc_tensor
31        avoiding all recomputation of gmredi_slope_limit
32      * adgmredi_x/y/rtransport
33        added flag for excessive storing to avoid recomp. of
34        u/v/rtans, dTdx/y/z
35        -> this is not really necessary and very memory-consuming
36      * adgmredi_slope_psi:
37        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
38      * gmredi_slope_limit
39        re-activated full calculation of taperfct for case 'ac02'
40    o updating verification/ adjoints of carbon, global_ocean.90x40x15
41    
42    checkpoint47i_post
43    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
44    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
45      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
46    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
47    o gmredi: fix few bugs.
48    
49    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
50    This will be a good checkpoint to plug into the ecco-branch.
51    o few modif.'s to get latest version adjointed
52      (mainly kick out code in ini_linear_phisurf)
53    o modif's to run adjoint with exactConserv
54    o case GM_BOLUS_ADVEC should be cleaned
55      S/R gmredi_slope_psi should be cleaned
56    o verification/carbon now has exactConserv=.TRUE.
57    
58    checkpoint47g_post
59    o time-average AIM output: becomes independent from statvars time-average
60      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
61    o After TAF bug fix:
62      Tested adjoint of gmredi package.
63      Tests were done with checkpoint47 rather than with latest
64      checkpoint47f_post since the latter is broken for the adjoint
65      verification/carbon/ contains both ADM and TLM gradient checks.
66    Here they are, before they get changed/lost/stolen.
67    Mostly modif.'s to fix numerical sensitivities.
68    Gradient checks OK for
69    - GM_taper_scheme:
70      * clipping
71      * ac02
72      * linear
73      * glw91
74      * dm95
75      * ldd97
76    - GMREDI_OPTIONS:
77      * GM_VISBECK_VARIABLE_K
78      * GM_NON_UNITY_DIAGONAL
79      * GM_EXTRA_DIAGONAL
80      * GM_BOLUS_ADVEC
81    in conjunction with data.gmredi parameters to be checked in
82    in a few minutes under verification/carbon/code/
83    
84    checkpoint47f_post
85    Merging from release1_p10:
86    o modifications for using pkg/exf with pkg/seaice
87      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
88        and SEAICE_EXTERNAL_FLUXES
89      - pkg/exf CPP options EXF_READ_EVAP and
90        EXF_NO_BULK_COMPUTATIONS
91      - usage examples are Experiments 8 and 9 in
92        verification/lab_sea/README
93      - verification/lab_sea default experiment now uses
94        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
95    
96    checkpoint47e_post
97    o created a tag prior to creating a branch
98    
99    checkpoint47d_post
100    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
101      at the bottom boundary had an erroneous half slip boundary condition
102    o added bottom drag and no slip boundary condition capabilities to
103      oceanic pressure coordinates code
104    o added new verification experiment global_ocean_pressure, this experiment is
105      also described in the tutorial section of the manual
106    checkpoint47d_pre
107    
108    checkpoint47c_post
109    o Added a verification experiment for a global cubed-sphere ocean run
110      -  verification/global_ocean.cubed32x32x30
111      -  uses pkg/therm_seaice and pkg/bulk_forcing
112    
113    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
114    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
115      when using P-coordinate; only implemented for atmospheric config.
116    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
117      NOTES: requires option NONLIN_FRSURF to be "#define".
118    o update advect_xz/results/output.txt (left from checkpoint44g_post)
119    
120    checkpoint47b_post
121    Merging from release1_p9:
122    o pkg/seaice
123      - removed GOTO's and added taf directives
124      - double precision constants to reduce the g77 (Linux)
125        to F77 (SGI) differences reported in release1_p8
126    o tools/genmake
127      - added SGI options
128    o verification/testscript
129      - updated to that of checkpoint47a_post
130    o verification/global_ocean.90x40x15/input/eedata
131      - modified for SGI f77 compatibility
132    o verification/lab_sea
133      - added description of sea-ice model
134      - added missing matlab routines
135      - added test of thermodynamics parallelization
136    
137    checkpoint47a_post
138    o new pkg: aim_v23
139     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
140       for now, keep the same surface forcing as before.
141     - Part-Cell implemented into AIM; check that Heat & Water are conserved
142     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
143     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
144    o add diagnostic of surface correction term in monitor output
145    
146    o bulk_force and therm_seaice
147    - Two packages:  bulk_force (Bulk forcing)
148      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
149    - Earlier integration from Stephaine Dutkiewicz
150      and Patrick Heimbach.
151    - Two ifdef statements for compile time,
152       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
153    
154    checkpoint47
155    differentiable version of checkpoint46n_post
156    o bug fix in quasihydrostaticterms
157    o * "clean" adjoint code (in terms of extensive recomputations)
158        can now be obtained for all GMREDI options (i.e. for
159        - GM_VISBECK_VARIABLE_K
160        - GM_NON_UNITY_DIAGONAL
161        - GM_EXTRA_DIAGONAL
162        - GM_BOLUS_ADVEC )
163      * However, wrong gradient check problem remains unsolved.
164      * New CPP options have been introduced for different
165        tapering schemes
166    o external_fields_load now part of differentiation list
167    o pressure needs multiple storing;
168      would be nice to have store_pressure at beginning or
169      end of forward_step, e.g. by having phiHyd global (5-dim.)
170      (NB: pressure is needed for certain cases in find_rho,
171      which is also invoked through convective_adjustment).
172    o recomputations in find_rho for cases
173     'JMD95'/'UNESCO' or 'MDJWF' are OK.
174    o #define ATMOSPHERIC_LOADING should be differentiable
175    o ini_forcing shifted to begining of initialise_varia
176    o Incorporating QNVS line search routines into MITgcm
177      (this is separate code, and therefore not under pkg)
178      lsopt/, optim/
179    o Updated verification/carbon/
180      - #define GM_VISBECK_VARIABLE_K
181      - GM_taper_scheme    = 'ldd97'    
182    
183    checkpoint46n_post
184    Merging from release1_p8:
185    o verification/natl_box:
186      updating new external_fields_load routine
187    o New package: pkg/seaice
188      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
189      The sea-ice code is based on Hibler (1979-1980).
190      Two sea-ice dynamic solvers, ADI and LSR, are included.
191      In addition to computing prognostic sea-ice variables and diagnosing
192      the forcing/external data fields that drive the ocean model,
193      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
194      The implied surface heat flux is then stored in variable
195      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
196      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
197      non-local transport term.  Because this call precedes model
198      thermodynamics, temperature under sea-ice may not be "exactly" at
199      the freezing point by the time theta is dumped or time-averaged.
200      N.B.: fairly large differences in accuracy occur across
201            different platforms/compilers; comparison between
202            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
203            generated output gives:
204       T           S           U           V
205      C D M    c        m  s        m  s        m  s        m  s
206      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
207      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
208      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
209    
210      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
211    o GAD:
212      - generated new common blocks to account for call of
213        same gad routines with differing traceridentities
214        (needed to modify tracerIdentity indices in GAD.h)
215      - generated separate common blocks for case useCubedSphereExchange
216        (Department of Futurology)
217      - parameter lists to gmredi_?transport: added tracerIdentity
218      - added new key indices to tamc.h
219    o external_fields_load:
220      - added this routine to TAF list
221      - needed to make some common blocks global and additional storing
222        along the same lines as exf package (checkpoint_lev?_directives.h)
223    o exf:
224      updated external forcing package
225      - bug fixes carried over from ecco-branch
226        (missing OBCS_OPTIONS.h in two routines)
227      - enable easy to use "no forcing".
228      - added exf I/O for atmospheric loading
229      - added exf I/O for runoff data
230      - transfered scaling between exf <-> MITgcm to exf namelist
231    o Adding new verification experiment global_with_exf.
232      This verification experiment is almost identical to the
233      global_ocean.90x40x15 experiment, except that it uses
234      the exf (and cal) package instead of the
235      external_fields_load routine (cf README file).
236    
237    checkpoint46m_post
238    o modified testscript to return -- when there are no lines of "%MON" output
239    o added new flag "quasiHydrostatic" for QH mode
240      and new routine quasihydrostaticterms()
241    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
242      New routine: mom_u_coriolis_nh()
243    o fixed sign of non-hydrostatic metric terms in u and v equations.
244      Depend on correct sign of gravitySign.
245    o added work.pc* to .cvsignore in aim directories using ifc
246    o introduced flag for controllin non-hydrostatic metric terms
247    o removed gravitySign from PARM04
248    o switched to g77/ifc from pgf77 in aim experiments
249    
250    checkpoint46l_post
251    o made convective adjustment work with pressure coordinates:
252     - changed the direction of k-loop in convective_adjustment.F for the
253       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
254     - adjusted the reference pressure k-index in convective_adjustment.F
255     - adjusted the convection condition in convect.F (in analogy to
256       calc_ivdc.F)
257     - convective_adjustment no longer computes anything on the halos
258     - removed the warnings about negative salinity from find_rho.F and
259       find_alpha.F; instead the new routine look_for_neg_salinity, called
260       at the beginning of find_rho, find_alpha, and find_beta, does a
261       check of the entire slice, if CPP-option
262       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
263    checkpoint46l_pre
264    
265    checkpoint46k_post
266    o fixed the verification/global_ocean.90x40x15 experiment:
267     - new bathymetry (the world according to A., JMC, and M.)
268     - new initial fields and forcing fields (*.bin files)
269     - new POLY3.COEFFS (for the next release one should switch to a full
270       equation of state: JMD95P or MDJWF)
271     - fixed several errors and redundancies in the data file
272     - experiment uses looped cells
273     - added matlab directory with diagnostic scripts for plotting of output
274    
275    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
276     - read AIM physics parameters from a file (data.aimphys)
277     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
278    
279    checkpoint46j_post
280    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
281    o move wVel computation at the end of the time step, in S/R integr_continuity
282    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
283    o update timeave pkg for wVel diagnostic.
284    checkpoint46j_pre
285    
286    checkpoint46i_post
287    o Clean up AIM package (and keep the results unchanged):
288      include CPP_OPTION and use IMPLICT NONE in all routines ;
289      declare all the variables _RL ; use _d 0 for all numerical constants.
290      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
291    
292    checkpoint46h_post
293    o cleaned up the use of rhoNil and rhoConst.
294      - rhoNil should only appear in the LINEAR equation of state, everywhere
295        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
296        and the dynamical equations are all divided by rhoConst
297    o introduced new parameter rhoConstFresh, a reference density of fresh
298      water, to remove the fresh water flux's dependence on rhoNil. The default
299      value is 999.8 kg/m^3
300    o cleanup up external_forcing.F and external_forcing_surf.F
301      - can now be used by both OCEANIC and OCEANICP
302    checkpoint46h_pre
303    
304     Added code to convert surface volume flux (fresh water) into
305     a mass flux when using P coordinates in the ocean (OCEANICP).
306     Note: It assumes you have set rho0=rhoConst=density of fresh water.
307    
308    checkpoint46g_post
309    o Include a new diagnostic variable phiHydLow for the ocean model
310      - in z-coordinates, it is the bottom pressure anomaly
311      - in p-coordinates, it is the sea surface elevation
312      - in both cases, these variable have global drift, reflecting the mass
313        drift in z-coordinates and the volume drift in p-coordinates
314      - included time averaging for phiHydLow, be aware of the drift!
315    o depth-dependent computation of Bo_surf for pressure coordinates
316      in the ocean (buoyancyRelation='OCEANICP')
317      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
318        Theta, Salinity, and Pressure in the parameter list. This routine is
319        presently contained in find_rho.F. This routine does not give the
320        correct density for 'POLY3', which would be a z-dependent reference
321        density.
322    o cleaned up find_rho
323      - removed obsolete 'eqn' from the parameter list.
324    o added two new verification experiments: gop and goz
325      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
326    checkpoint46g_pre
327    
328    checkpoint46f_post
329    o Enable tangent linear (forward mode) gradient checks:
330      - extended active file handling to g_... files
331      - added TANGENT_SIMULATION to theSimulationMode
332      - extended grdchk package accordingly
333    o added tangent linear setup in verification/carbon/code_ftl
334    o added adjoint setup in verification/front_relax/code_ad
335    
336    checkpoint46e_post
337    o Added new equation of state -> MDJWF
338      - EOS of McDougall et al., 2002, JAOT, submitted
339      - caveat: the equation of state is only valid for a smaller (more
340        realistic?) range of values than JMD95P/Z and UNESCO
341      - added masks to the calculation of pressure in store_pressure
342      - added more check values for density in check_eos (ini_eos.F), some of
343        the old check values are out of the range of the MDJWF-eos, so don't
344        expect perfect matches for those
345    checkpoint46e_pre
346    
347    checkpoint46d_post
348    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
349      'OCEANICP', also initialised field pressure correctly in ini_eos in the
350      case of pressure coordinates. eosType='JMD95Z' in
351      combination with buoyancyRelation='OCEANICP' now causes an error.
352    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
353      in find_alpha/beta.
354    checkpoint46d_pre
355    
356    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
357      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
358    
359    checkpoint46c_post
360    o Changes necessary for ocean in p-coordinates
361     -  Added new buoyancy relation = 'OCEANICP'
362     -  Added new parameters = gravitySign (this used to be contained inside
363        the factor dRdZ which I added when we first switched to R coordinates).
364     X GM/Redi is not compatible (yet)
365     X bottom drag and no-slip need to be debugged.
366    checkpoint46c_pre
367    
368    checkpoint46b_post
369    o Added new equation of state -> JMD95Z and JMD95P
370      - EOS of Jackett and McDougall, 1995, JAOT
371      - moved all EOS parameters into EOS.h
372      - new routines ini_eos.F, store_pressure.F
373    o Added UNESCO EOS, but not recommended because it requires
374      in-situ temperature (see JMD95)
375    o Modified formatting for knudsen2.f in utils/knudsen2 and added
376      unesco.f to be used with POLY3
377    checkpoint46b_pre
378    
379    checkpoint46a_post
380    o Added (atmospheric) pressure loading
381      - new field in FFIELDS.h, etc...
382      - new cpp flag ATMOSPHERIC_LOADING
383    o Changed hFacC to _hFacC in calc_phi_hyd.F
384    o Added SHORTWAVE_HEATING to some files for consistency
385    checkpoint46a_pre
386    
387    checkpoint46
388    further merges from release1_p5
389    o new ctrl package
390      - adopted from ECCO environment to enable optimization
391      - added Eliassen Palm fluxes to controls
392    o added Eliassen Palm flux controls to gradient check package
393    o cost package
394      - Compatible with new ctrl package
395      - added Eliassen Palm cost hooks
396      - modif's of existing cost functions
397    o Adjoint-related bug fixes in kpp:
398      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
399      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
400    o autodiff package
401      - flow directives:
402        + new for S/R do_the_model_io
403        + enhanced for S/R checkpoint
404        + new gmredi.flow
405      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
406        disable adcommon.h/g_common.h by default.
407      - fixed problem for adjoint of global_max
408    o modified verification/carbon/
409    o New setup for adjoint of global_ocean
410    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
411    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
412    o incorporated hooks for sponge layer code (external_forcing.F)
413    
414    checkpoint45d_post
415    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
416    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
417      (affects plume_on_slope "cg2d" output)
418    o add new parameter deltaTfreesurf for free-surface time stepping
419    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
420    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
421    o change phiMin in exp1 (to agree with documentation)
422    o add new flags:
423     - T,S forcing inside/outside Adams-Bashforth
424     - turn off temp,salt advection and/or forcing
425     - for each tracer, define internal flag for multiDimAdvection & A-B
426    o monitor: change definition of KE to check conservation of Energy
427    
428    checkpoint45c_post
429    o Removed f90 comments ("!")
430    o Modified initialisations to enable exf package for MITgcm
431      (without invoking ECCO_PACKAGE).
432    o modifications to gradient check package (Martin Losch)
433      - enable centered differences
434      - modified format of standard output
435    
436    checkpoint45b_post
437    o cleaned exchange calls in cg2d
438    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
439    o included CPP option SINGLE_LAYER_MODE in thermodynamics
440      to configure barotropic setup (Martin Losch)
441    o moved some initialisations within bi,bj loop in dynamics
442      (TAF flow dependency)
443    o in initialise_varia, moved call packages_init_variables
444      before convective_adjustment_init
445      (corresponding adjustment of TAF tape initialisation).
446    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
447    
448    checkpoint45a_post
449    o compute Rho over the whole domain (extend iMin,jMin indices)
450    o specific exchange for X-slice domain (case Ny=1)
451    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
452    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
453    
454    checkpoint44h_post = checkpoint45
455    o Fix to restore differentiability:
456      place at which packages_init_variables is called in
457      initialise_varia is crucial for reverse control flow.
458    o modifications in GMRedi to enable stable adjoint
459      (corresponding modif's in thermodynamics, dynamics)
460    o added missing hook for sponge layer code in external_forcing
461    o modified test cost functions
462    o storing in gad_advection (plus removal of write(0,*)!
463    o missing headers TR1.h added in convective_adjustment routines
464    o errorMessageUnit set non-equal zero in eeboot
465      (conflict on some platforms, e.g. IBM SP3)
466    o modified carbon verif.
467    
468    checkpoint44h_pre
469    o vertical grid option: allow to put the Interface at the middle between
470      2 cell-centers ; replace delZ in pkg/kpp by drF.
471    o GM Advective form: Tracers are advected using the residual transport (=
472      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
473    
474    checkpoint44g_post
475    o fix surface correction term in multiDimAdvection (affects plume_on_slope
476      results) ; ifdef missing in thermodynamics.F
477    
478    checkpoint44f_pre,checkpoint44f_post
479    o added PTRACERS package
480      This allows an arbitrary number of passive tracers to be integrated
481      forward simultaneously with the dynamicaly model.
482      + Implemented so far:
483        - basic forward algorithm (time-stepping, advection, diffusion, convection)
484        - I/O and checkpointing
485        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
486      + Not implemented so far:
487        - KPP
488        - OBCS
489      + No specific example supplied (yet) but global_ocean.90x40x15 has the
490        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
491        line in data.pkg.
492      + This package is disabled by default since it increases storage.
493    
494    
495    o testscript: added -cleanup option
496    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
497                 b) enable to filter 2D fields.
498    
499    checkpoint44e_pre,post
500    o re-wrote convective adjustment to use pre-calculated weights
501      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
502      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
503      Original calls to convect() still in place.
504    
505    chkpt44d_pre,post
506    o added missing EXCLUDE_MONITOR flags
507    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
508      (incompatible typ in MIN/MAX expressions caused problems
509      on IBM SP3)
510    o in genmake added variable MAKEDEPEND
511      plus resetting for case SunOS
512    o added timer_stats.c routine for IBM SP3
513    o removed variables in dynamics
514    !!! I forgot to create tag chkpt44d_pre !!!
515    !!! But chkpt44d_pre = chkpt44c_post    !!!
516    
517    o real fresh water flux implemented with non-linear free-surface.
518    
519    chkpt44c_pre,post
520    o few fix (mask in shap_s2, EmPmR in external_field_load,
521      USE_NATURAL_BCS in solve_for_P);
522    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
523    
524    checkpoint44b_pre/_post
525    o merge of relevant stuff from the ecco-branch:
526      - genmake: removed $S64 overwrite for case SunOS
527      - pkg/exf: update and corrections for field swapping and obcs
528      - pkg/ecco: parameter lists for the_model_main, the_main_loop
529                  harmonized between ECCO and MITgcm
530      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
531                      updated checkpointing_lev... lists for obcs
532      - model/src: minor changes in forward_step, plot_field
533                   added directive for divided adjoint in the_main_loop
534      - pkg/mdsio: added mdsio_gl_slice
535    
536    o check parameters & config (chkpt44a_pre,post)
537    o OBC and NonLin_FrSurf.
538    
539    checkpoint44
540    o fix bug in mom_vi_del2uv
541    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
542    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
543    o update AIM experiments (NCEP input files)
544    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
545    o added some stuff for AD
546    
547    checkpoint43
548    o added two new advection tests
549    o added global 4x4 degree ocean test
550    o added test of H&S94 with free surface on cube
551    o some final mods for gradient check, adjoint,...
552    
553    checkpoint42
554      Fixed AD-related problems:
555    o Store directives up-to-date with re-arranged Adams-Bashforth
556      (mainly thermodynamics.F)
557    o New store directives for multi-dim. advection schemes
558      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
559      * new common block and key passkey
560      (mainly gad_advection.F)
561    o Modified store directives for split of dynamics/thermodynamics
562      for the case ALLOW_KPP
563    o Cleaned argument list for timestep_tracer.F
564    
565    checkpoint41
566    o re-formatted/added comments in prologues of key subroutines
567      to work with protex
568    
569    checkpoint40
570    o moved calc_gs, calc_gt and calc_tr1 back to model/src
571    o added FLT (floats) package from Arne along with demo. experiment
572    o re-arranged Adams-Bashforth scheme for tracers to allow easier
573      implementation of forward-in-time forcing terms
574    o more mods for non-linear free-surface including new variable
575    o modified multi-dim method to work on cube
576    o bug fix in KPP (from DM)
577    
578    checkpoint40pre9
579    o added DST advection schemes
580    o fix MPI bug on SGI's
581    o modifications for non-linear free-surface
582    o fixed conditionals for fixed flow/passive tracer only mode
583    o added tension/strain form of stress tensor
584    o changes to commenting of arguments for TAF/TAMC
585    o added/updated many matlab scripts
586    o added multi-dimensional advection method for tracers
587      
588    checkpoint40pre8
589    o new package rw/
590      Added method for dumping intermediate local arrays:
591      mdsio_writetile - same as mdsio_writefield except works from inside
592                        bi,bj loop
593      mdsio_writelocal - same as mdsio_writetile except works for local
594                         arrays
595      write_local_r? - higher-level wrapper for mdsio_writelocal
596      Controlled by diagFreq. Defaults to zero (ie. no dumps)
597      Example given at end of mom_vecinv.F that dumps some local arrays.
598    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
599      control flux-form versus vector invariant code.
600      Switch is runtime flag vectorInvariantMomentum (defaults to false)
601      or genmake -DISABLE ...
602    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
603      (additional storing is now needed for case vecinv;
604      currently nothing implemented to switch this storing off
605      in case fluxform is used since no CPP flag available).
606    
607    checkpoint40pre7
608    o bug fix in dynamics.F
609      calc_viscosity called before k=1,Nr loop.
610    o added some #ifdef's ALLOW_PASSIVE_TRACER
611    o cleaned initialisations in ctrl_map_ini
612      related to TAF
613    
614    checkpoint40pre6
615    o split dynamics into thermodynamics & dynamics
616    o corresponding split of calc_diffusivity into
617      calc_diffusivity, calc_viscosity
618      (kpp_calc_diff, kpp_calc_visc).
619    o Added diffkr, kapgm to control variables
620    o bug fix in gmredi_slope_limit for ldd97
621    
622    checkpoint40pre5
623    o proper initialization of Adams-Bashforth time stepping
624      + uses forward step for very first step of model (iter=0)
625    o re-generated *all* output since almost all output is modified by this
626      change (sorry but we've been putting this one off for about 2 years)
627      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
628        *not* regenerated since they are already out of date and I don't
629        want to create the impression that they are suddenly working.
630    o removed KAP stuff for DEC's
631    o modified/added many .cvsignore files in */code and */input
632    o added new expt "solid-body.cs-32x32x1"
633      + this uses an alternative form of ini_curvilinear_grid.F which
634        is not necessarily any better than the current one...
635    
636    checkpoint40pre4
637    o added re-initialisations of utrans,vtrans,rtrans in
638      calc_common_factors which are crucial for TAF.
639    o extended iMin,jMin range for calc_common_factors,
640      calc_diffusivity
641    o added option ALLOW_PASSIVE_TRACER
642    o a few minor updates and fixes
643    
644    checkpoint40pre3
645    o created calc_gtr1.F for gad package
646    o split the_main_loop and re-introduced forward_step
647    o some recomputations of nIter0 for TAMC
648    
649    checkpoint40pre2
650    o Updated to latest branch of AJA, JMC
651    o Added gradient check package
652    o Added routines for passive tracer handling
653    o Added carbon sequestration sensitivity experiment
654    
655    checkpoint39
656     o Modifications and fixes to support TAMC
657       (mainly missing or wrong directives)
658     o Corrected common blocks when fooling TAMC to produce adjoint I/O
659       in addummy_in_stepping
660     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
661     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
662     o Included following packages:
663       cal: calendar
664       exf: external forcing
665       ecco: essential routines to control use of cal, exf
666             (NB: this is not the full ECCO environment)
667     o disabled some packages by default in genmake
668    
669    checkpoint38
670     o see notes_c37_adj.txt
671     o corrected wrong layer index in external_forcing_t
672     o replaced the_main_loop/forward_step by the_main_loop
673     o removed forceoutput from write_state
674       (replaced criteria for initial/final state)
675     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
676    
677    checkpoint37
678     o mdsio.F routine split and packaged in pkg/mdsio
679       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
680        used unless genmake -disable=mdsio)
681     o allow a more precise surface-geopotential gradient for the atmosphere
682       taking into account the change in space of Alpha (=1/rho) at the surface.
683     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
684       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
685     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
686       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
687       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
688     o Time-Average diagnostics defined as a pseudo package "timeave".
689     o pickup files : old pickup (before c35) did not work with new code (c35
690       and after) unless activating 2 commented lines in initialise-varia.
691     o Non-Hydrostatic pickup file Pb fixed.
692     o bug with Rigid-lid version (since c35) fixed.  
693    
694    checkpoint36
695     o implement Crank-Nickelson barotropic time-stepping
696     o recover Time-Average diagnostics
697     o fix Pb in checkpoint (PR#19)
698     o AIM become a standard package ; clean unused CPP_kees
699    
700    checkpoint35
701     o subtantial rewrite of dynamics.f
702     o allows staggered time-stepping
703     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
704     o added bottom drag (linear + quadratic)
705    
706    checkpoint34
707     o Modified exchange routines for correct reverse simulation.
708     o Added verification output to comply with bug fix in impldiff.F
709       as of c33 (exp2, natl_box).
710     o Corrected store directives in dynamics.F
711     o Corrected array boundaries in impldiff.F
712     o Corrected array dimensions in gmredi.
713       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
714     o Added routine GLOBAL_SUM_INT to global_sum.F
715     o Added mdsio_gl.F for ECCO purposes.
716    
717    checkpoint33
718     o Fixed bug in lower BC in impldiff.F
719     o Fixed confusion about units of forcing arrays in FFIELDS.h
720       namely Fu,Fv,Qnet,Qsw,EmPmR:
721       - Removed verification/natl_box/code/external_fields_scale.F
722         (did not differ from that in model/src)
723       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
724         (see FFIELDS.h for description)
725       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
726         kpp_calc.F and kpp_transport_t.F
727       - Removed model/src/external_fields_scale.F and calls to it
728       - verification/natl_box uses flux data with "atmospheric" sign so
729         a special version of external_fields_load.F is used to
730         change the data as it's read in. This way, the arrays
731         have the right units and signs at all times tha a user could
732         possibly use them.
733     o Corrected genmake to delete a temporary file during configuration
734    
735    checkpoint32
736     o Scaling of forcing fields moved from external_forcing.F to
737       external_fields_scale.F, called directly after loading fields.
738     o Surface relaxation terms added to surface tendency fields in
739       extra subroutine.
740     o impldiff.F changed to avoid storing by TAMC of huge intermediate
741       fields.
742     o Changes in GMRedi to comply with packaging structure.
743     o Modifications and bug fixes in KPP package.
744     o Verification experiment for KPP added (verification/nat_box/)
745    
746    checkpoint31
747     o Packages interface brought in line with defined standard
748       -> new routines packages_...F
749       -> changes in initialise_fixed.F, initialise_varia.F
750       -> enables initialisation interface for ECCO package
751     o Rescaling of external forcing fields immediately after read
752       (removed from external_forcing.F)
753       -> new: surface_fields_scale.F
754       -> affects ini_foorcing.F, external_fields_load.F
755     o Computation of surface tendencies before tendency updates.
756       -> new: external_forcing_surf.F
757     o Change of variable names useGMRedi, useKPP, useECCO
758     o Further changes in dynamics.F, impldiff.F for TAMC
759     o Tested for experiments 0, 2, 4.
760       - not yet tested for GMRedi.
761       - not yet tested for KPP.
762    
763    checkpoint30
764     o Updates for OBCs
765     o New experiment for test OBCs (internal_wave)
766     o New output.txt in verification/exp4/results/
767     o Updates for KPP: calculation of viscosity corrected, new variables
768       kpp_dumpFreq and kpp_taveFreq
769     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
770       and entry for T90 in genmake
771    
772    checkpoint29
773     o packaged KPP and GM/Redi
774    
775    checkpoint28
776     o Corrected initialization of hFacMin for difference vertical coordinates
777     o Modified calculation of partial cell thickness to more robust algorithm
778     o config_summary.F: replaced write_1D_... by write_0D_...
779       read_write.F: added subroutines write_0D_...
780     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
781       included some initialisations required for TAMC.
782     o routine calc_isoslopes: modified sqrt computation to make it
783       differentiable for zero argument.
784     o routines dynamics, impldiff:
785       included store directives and tape key computations required for TAMC.
786     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
787    
788    checkpoint27
789     o fixed calc_isoslopes() to so that cancellation of terms in tensor
790       formulation works properly with variable resolution.
791     o restructured the calling tree between the_model_main() and dynamics()
792     o split initialise() into initialise_fixed() and initialise_varia()
793     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
794       in new routine ini_psurf()
795    
796    checkpoint26
797     o moved some #ifdef in optional routines to encompass everything
798       except the argument declarations. This was using up some memory.
799     o fixed macros like _ADT to work with both versions of Linux cpp
800     o cleaned up some unused and uninitialized variables
801       (helps when debugging with strict compile options)
802     o split up CPP_EEOPTIONS.h into options and macros
803       (macros are now in eesupp/inc/CPP_EEMACROS.h)
804     o patch for 2 processor JAM mode
805    
806    checkpoint25
807     o updates for OBCs and NH
808     o dramatically reduced memory usage
809     o added "JAM" routines for use on Artic network
810     o parameterization of convection by implicit vertical diffusion
811     o added a diagnostic of convective index
812     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
813       (this is was partly for OBCs and NH but also in anticipation of
814        an explicit free-surface option)
815     o initial state input files for U and V
816    
817    checkpoint24
818     o Removed some spurious "REAL"s
819     o Updated KPP to latest version from JPL
820     o Added a COS(latitude) in horizontal viscosity
821    
822    checkpoint23
823     o Added del^4 diffusion for salt and temperature
824     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
825    
826    checkpoint22
827     o Made many small changes: implicit none, format(i5), etc...
828     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
829    
830    checkpoint21
831     o Introduced new I/O package that supports direct-access records (mdsio.F)
832     o Split-up mid-level I/O routines
833     o Updated input data for experiments 0,1,2,4 and 5
834     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
835    
836    checkpoint20
837     o Tidied up open-boundaries some more
838     o Added non-hydrostatic code
839     o Fixed some input data
840     o Modified MPI start-up to work in "coupled" context.
841    
842    checkpoint19
843     o Tidied up directory structure for verification experiments.
844     o Added new code for open boundaries.
845     o Corrected advective terms near boundaries.
846     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
847     o Implemented free-slip/no-slip BCs and del^4 dissipation.
848     o Split default parameters out of ini_parms.F into set_defaults.F.
849    
850    checkpoint18
851     o Further changes for optional code generation with
852       CPP - ugh!
853    
854    checkpoint17
855     o Beginning to incorporating modularity
856       for supporting atmos. and ocean configs.
857     o Small changes for TAMC complinace
858     o New ultra simple test case. Barotropic box
859       configuration "exp0".
860    
861    checkpoint16
862     o Minor changes to exchange routines to support
863       accumulation in reverse mode. Adjoint of an
864       assignment is an addition.
865     o Changes to support compilation by TAMC (LR(1)
866       syntax) and by g77 under Linux ( 72 character
867       limit ).
868    
869    checkpoint15
870     Rewrote exchange routines to allow
871     o General tile <-> tile connectivity.
872     o TAMC reverse mode flag ( is this really needed? )
873     o Variable width overlap and exchange region widths.
874     o Hooks for sharing data via DMA, Arctic, Memory Channel,
875       shmput/shmget, VIA, SYSV shmem and every other cool
876       communication method.
877    
878  checkpoint14  checkpoint14
879   Consistent isomorphism chages made. These allow dynamical core   Consistent isomorphism chages made. These allow dynamical core
880   to support both pressure and meters as a vertical coordinate.   to support both pressure and meters as a vertical coordinate.

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