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revision 1.20 by adcroft, Tue May 18 15:43:59 1999 UTC revision 1.132 by jmc, Tue Feb 11 04:32:12 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 New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
7    o dynamics: change definition of computational domain & adapt mom_fluxform
8      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
9    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
10        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
11        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5
12        global_ocean.90x40x15 global_with_exf global_ocean_pressure
13        inverted_barometer solid-body.cs-32x32x1
14      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
15    
16    checkpoint48d_post
17    o in preparation for r*:
18     a) use pre-computed gradient of hydrostatic potential:
19        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
20     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
21        => affects results of glob_oce_pressure (different truncation error)  
22      update output.txt of ideal_2D_oce & global_ocean_pressure
23    
24    checkpoint48d_pre
25    o in preparation for r*:
26      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
27      pass the 2 comp. of the grad. as arguments to momentum S/R.
28      but for the moment, only used if it does not change the results.
29    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
30    
31    checkpoint48c_post
32    Modifications in treatment of initial flux forcing controls
33    to avoid extra storing of flux fields.
34    
35    checkpoint48c_pre
36    o Added tidal_basin_2d experiment (currently 1D!)
37    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
38    
39    checkpoint48b_post
40    o r* coordinate added in #ifdef NONLIN_FRSURF block.
41     (modification to pressure gradient not yet implemented)
42    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
43      (for U & V) that are used for vertical advection of momentum.
44    
45    checkpoint48a_post
46    o In preparation for r*, use temp. array to compute vertical transport
47       in flux-form momentum pkg. => change results of few test-exp.
48      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
49                        lab_sea, natl_box & plume_on_slope
50    
51    checkpoint48
52    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
53    
54    checkpoint47j_post
55    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
56    o moved adexch from forward_step to addummy_in_stepping
57    o added exch in ctrl_map_...
58    o aveFreq.=0. at end of cost_final to avoid overwrite in
59      reverse checkpointing loop
60    o Yet more changes in gmredi:
61      * adgmredi_calc_tensor
62        avoiding all recomputation of gmredi_slope_limit
63      * adgmredi_x/y/rtransport
64        added flag for excessive storing to avoid recomp. of
65        u/v/rtans, dTdx/y/z
66        -> this is not really necessary and very memory-consuming
67      * adgmredi_slope_psi:
68        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
69      * gmredi_slope_limit
70        re-activated full calculation of taperfct for case 'ac02'
71    o updating verification/ adjoints of carbon, global_ocean.90x40x15
72    
73    checkpoint47i_post
74    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
75    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
76      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
77    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
78    o gmredi: fix few bugs.
79    
80    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
81    This will be a good checkpoint to plug into the ecco-branch.
82    o few modif.'s to get latest version adjointed
83      (mainly kick out code in ini_linear_phisurf)
84    o modif's to run adjoint with exactConserv
85    o case GM_BOLUS_ADVEC should be cleaned
86      S/R gmredi_slope_psi should be cleaned
87    o verification/carbon now has exactConserv=.TRUE.
88    
89    checkpoint47g_post
90    o time-average AIM output: becomes independent from statvars time-average
91      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
92    o After TAF bug fix:
93      Tested adjoint of gmredi package.
94      Tests were done with checkpoint47 rather than with latest
95      checkpoint47f_post since the latter is broken for the adjoint
96      verification/carbon/ contains both ADM and TLM gradient checks.
97    Here they are, before they get changed/lost/stolen.
98    Mostly modif.'s to fix numerical sensitivities.
99    Gradient checks OK for
100    - GM_taper_scheme:
101      * clipping
102      * ac02
103      * linear
104      * glw91
105      * dm95
106      * ldd97
107    - GMREDI_OPTIONS:
108      * GM_VISBECK_VARIABLE_K
109      * GM_NON_UNITY_DIAGONAL
110      * GM_EXTRA_DIAGONAL
111      * GM_BOLUS_ADVEC
112    in conjunction with data.gmredi parameters to be checked in
113    in a few minutes under verification/carbon/code/
114    
115    checkpoint47f_post
116    Merging from release1_p10:
117    o modifications for using pkg/exf with pkg/seaice
118      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
119        and SEAICE_EXTERNAL_FLUXES
120      - pkg/exf CPP options EXF_READ_EVAP and
121        EXF_NO_BULK_COMPUTATIONS
122      - usage examples are Experiments 8 and 9 in
123        verification/lab_sea/README
124      - verification/lab_sea default experiment now uses
125        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
126    
127    checkpoint47e_post
128    o created a tag prior to creating a branch
129    
130    checkpoint47d_post
131    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
132      at the bottom boundary had an erroneous half slip boundary condition
133    o added bottom drag and no slip boundary condition capabilities to
134      oceanic pressure coordinates code
135    o added new verification experiment global_ocean_pressure, this experiment is
136      also described in the tutorial section of the manual
137    checkpoint47d_pre
138    
139    checkpoint47c_post
140    o Added a verification experiment for a global cubed-sphere ocean run
141      -  verification/global_ocean.cubed32x32x30
142      -  uses pkg/therm_seaice and pkg/bulk_forcing
143    
144    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
145    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
146      when using P-coordinate; only implemented for atmospheric config.
147    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
148      NOTES: requires option NONLIN_FRSURF to be "#define".
149    o update advect_xz/results/output.txt (left from checkpoint44g_post)
150    
151    checkpoint47b_post
152    Merging from release1_p9:
153    o pkg/seaice
154      - removed GOTO's and added taf directives
155      - double precision constants to reduce the g77 (Linux)
156        to F77 (SGI) differences reported in release1_p8
157    o tools/genmake
158      - added SGI options
159    o verification/testscript
160      - updated to that of checkpoint47a_post
161    o verification/global_ocean.90x40x15/input/eedata
162      - modified for SGI f77 compatibility
163    o verification/lab_sea
164      - added description of sea-ice model
165      - added missing matlab routines
166      - added test of thermodynamics parallelization
167    
168    checkpoint47a_post
169    o new pkg: aim_v23
170     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
171       for now, keep the same surface forcing as before.
172     - Part-Cell implemented into AIM; check that Heat & Water are conserved
173     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
174     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
175    o add diagnostic of surface correction term in monitor output
176    
177    o bulk_force and therm_seaice
178    - Two packages:  bulk_force (Bulk forcing)
179      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
180    - Earlier integration from Stephaine Dutkiewicz
181      and Patrick Heimbach.
182    - Two ifdef statements for compile time,
183       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
184    
185    checkpoint47
186    differentiable version of checkpoint46n_post
187    o bug fix in quasihydrostaticterms
188    o * "clean" adjoint code (in terms of extensive recomputations)
189        can now be obtained for all GMREDI options (i.e. for
190        - GM_VISBECK_VARIABLE_K
191        - GM_NON_UNITY_DIAGONAL
192        - GM_EXTRA_DIAGONAL
193        - GM_BOLUS_ADVEC )
194      * However, wrong gradient check problem remains unsolved.
195      * New CPP options have been introduced for different
196        tapering schemes
197    o external_fields_load now part of differentiation list
198    o pressure needs multiple storing;
199      would be nice to have store_pressure at beginning or
200      end of forward_step, e.g. by having phiHyd global (5-dim.)
201      (NB: pressure is needed for certain cases in find_rho,
202      which is also invoked through convective_adjustment).
203    o recomputations in find_rho for cases
204     'JMD95'/'UNESCO' or 'MDJWF' are OK.
205    o #define ATMOSPHERIC_LOADING should be differentiable
206    o ini_forcing shifted to begining of initialise_varia
207    o Incorporating QNVS line search routines into MITgcm
208      (this is separate code, and therefore not under pkg)
209      lsopt/, optim/
210    o Updated verification/carbon/
211      - #define GM_VISBECK_VARIABLE_K
212      - GM_taper_scheme    = 'ldd97'    
213    
214    checkpoint46n_post
215    Merging from release1_p8:
216    o verification/natl_box:
217      updating new external_fields_load routine
218    o New package: pkg/seaice
219      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
220      The sea-ice code is based on Hibler (1979-1980).
221      Two sea-ice dynamic solvers, ADI and LSR, are included.
222      In addition to computing prognostic sea-ice variables and diagnosing
223      the forcing/external data fields that drive the ocean model,
224      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
225      The implied surface heat flux is then stored in variable
226      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
227      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
228      non-local transport term.  Because this call precedes model
229      thermodynamics, temperature under sea-ice may not be "exactly" at
230      the freezing point by the time theta is dumped or time-averaged.
231      N.B.: fairly large differences in accuracy occur across
232            different platforms/compilers; comparison between
233            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
234            generated output gives:
235       T           S           U           V
236      C D M    c        m  s        m  s        m  s        m  s
237      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
238      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
239      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
240    
241      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
242    o GAD:
243      - generated new common blocks to account for call of
244        same gad routines with differing traceridentities
245        (needed to modify tracerIdentity indices in GAD.h)
246      - generated separate common blocks for case useCubedSphereExchange
247        (Department of Futurology)
248      - parameter lists to gmredi_?transport: added tracerIdentity
249      - added new key indices to tamc.h
250    o external_fields_load:
251      - added this routine to TAF list
252      - needed to make some common blocks global and additional storing
253        along the same lines as exf package (checkpoint_lev?_directives.h)
254    o exf:
255      updated external forcing package
256      - bug fixes carried over from ecco-branch
257        (missing OBCS_OPTIONS.h in two routines)
258      - enable easy to use "no forcing".
259      - added exf I/O for atmospheric loading
260      - added exf I/O for runoff data
261      - transfered scaling between exf <-> MITgcm to exf namelist
262    o Adding new verification experiment global_with_exf.
263      This verification experiment is almost identical to the
264      global_ocean.90x40x15 experiment, except that it uses
265      the exf (and cal) package instead of the
266      external_fields_load routine (cf README file).
267    
268    checkpoint46m_post
269    o modified testscript to return -- when there are no lines of "%MON" output
270    o added new flag "quasiHydrostatic" for QH mode
271      and new routine quasihydrostaticterms()
272    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
273      New routine: mom_u_coriolis_nh()
274    o fixed sign of non-hydrostatic metric terms in u and v equations.
275      Depend on correct sign of gravitySign.
276    o added work.pc* to .cvsignore in aim directories using ifc
277    o introduced flag for controllin non-hydrostatic metric terms
278    o removed gravitySign from PARM04
279    o switched to g77/ifc from pgf77 in aim experiments
280    
281    checkpoint46l_post
282    o made convective adjustment work with pressure coordinates:
283     - changed the direction of k-loop in convective_adjustment.F for the
284       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
285     - adjusted the reference pressure k-index in convective_adjustment.F
286     - adjusted the convection condition in convect.F (in analogy to
287       calc_ivdc.F)
288     - convective_adjustment no longer computes anything on the halos
289     - removed the warnings about negative salinity from find_rho.F and
290       find_alpha.F; instead the new routine look_for_neg_salinity, called
291       at the beginning of find_rho, find_alpha, and find_beta, does a
292       check of the entire slice, if CPP-option
293       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
294    checkpoint46l_pre
295    
296    checkpoint46k_post
297    o fixed the verification/global_ocean.90x40x15 experiment:
298     - new bathymetry (the world according to A., JMC, and M.)
299     - new initial fields and forcing fields (*.bin files)
300     - new POLY3.COEFFS (for the next release one should switch to a full
301       equation of state: JMD95P or MDJWF)
302     - fixed several errors and redundancies in the data file
303     - experiment uses looped cells
304     - added matlab directory with diagnostic scripts for plotting of output
305    
306    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
307     - read AIM physics parameters from a file (data.aimphys)
308     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
309    
310    checkpoint46j_post
311    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
312    o move wVel computation at the end of the time step, in S/R integr_continuity
313    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
314    o update timeave pkg for wVel diagnostic.
315    checkpoint46j_pre
316    
317    checkpoint46i_post
318    o Clean up AIM package (and keep the results unchanged):
319      include CPP_OPTION and use IMPLICT NONE in all routines ;
320      declare all the variables _RL ; use _d 0 for all numerical constants.
321      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
322    
323    checkpoint46h_post
324    o cleaned up the use of rhoNil and rhoConst.
325      - rhoNil should only appear in the LINEAR equation of state, everywhere
326        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
327        and the dynamical equations are all divided by rhoConst
328    o introduced new parameter rhoConstFresh, a reference density of fresh
329      water, to remove the fresh water flux's dependence on rhoNil. The default
330      value is 999.8 kg/m^3
331    o cleanup up external_forcing.F and external_forcing_surf.F
332      - can now be used by both OCEANIC and OCEANICP
333    checkpoint46h_pre
334    
335     Added code to convert surface volume flux (fresh water) into
336     a mass flux when using P coordinates in the ocean (OCEANICP).
337     Note: It assumes you have set rho0=rhoConst=density of fresh water.
338    
339    checkpoint46g_post
340    o Include a new diagnostic variable phiHydLow for the ocean model
341      - in z-coordinates, it is the bottom pressure anomaly
342      - in p-coordinates, it is the sea surface elevation
343      - in both cases, these variable have global drift, reflecting the mass
344        drift in z-coordinates and the volume drift in p-coordinates
345      - included time averaging for phiHydLow, be aware of the drift!
346    o depth-dependent computation of Bo_surf for pressure coordinates
347      in the ocean (buoyancyRelation='OCEANICP')
348      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
349        Theta, Salinity, and Pressure in the parameter list. This routine is
350        presently contained in find_rho.F. This routine does not give the
351        correct density for 'POLY3', which would be a z-dependent reference
352        density.
353    o cleaned up find_rho
354      - removed obsolete 'eqn' from the parameter list.
355    o added two new verification experiments: gop and goz
356      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
357    checkpoint46g_pre
358    
359    checkpoint46f_post
360    o Enable tangent linear (forward mode) gradient checks:
361      - extended active file handling to g_... files
362      - added TANGENT_SIMULATION to theSimulationMode
363      - extended grdchk package accordingly
364    o added tangent linear setup in verification/carbon/code_ftl
365    o added adjoint setup in verification/front_relax/code_ad
366    
367    checkpoint46e_post
368    o Added new equation of state -> MDJWF
369      - EOS of McDougall et al., 2002, JAOT, submitted
370      - caveat: the equation of state is only valid for a smaller (more
371        realistic?) range of values than JMD95P/Z and UNESCO
372      - added masks to the calculation of pressure in store_pressure
373      - added more check values for density in check_eos (ini_eos.F), some of
374        the old check values are out of the range of the MDJWF-eos, so don't
375        expect perfect matches for those
376    checkpoint46e_pre
377    
378    checkpoint46d_post
379    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
380      'OCEANICP', also initialised field pressure correctly in ini_eos in the
381      case of pressure coordinates. eosType='JMD95Z' in
382      combination with buoyancyRelation='OCEANICP' now causes an error.
383    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
384      in find_alpha/beta.
385    checkpoint46d_pre
386    
387    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
388      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
389    
390    checkpoint46c_post
391    o Changes necessary for ocean in p-coordinates
392     -  Added new buoyancy relation = 'OCEANICP'
393     -  Added new parameters = gravitySign (this used to be contained inside
394        the factor dRdZ which I added when we first switched to R coordinates).
395     X GM/Redi is not compatible (yet)
396     X bottom drag and no-slip need to be debugged.
397    checkpoint46c_pre
398    
399    checkpoint46b_post
400    o Added new equation of state -> JMD95Z and JMD95P
401      - EOS of Jackett and McDougall, 1995, JAOT
402      - moved all EOS parameters into EOS.h
403      - new routines ini_eos.F, store_pressure.F
404    o Added UNESCO EOS, but not recommended because it requires
405      in-situ temperature (see JMD95)
406    o Modified formatting for knudsen2.f in utils/knudsen2 and added
407      unesco.f to be used with POLY3
408    checkpoint46b_pre
409    
410    checkpoint46a_post
411    o Added (atmospheric) pressure loading
412      - new field in FFIELDS.h, etc...
413      - new cpp flag ATMOSPHERIC_LOADING
414    o Changed hFacC to _hFacC in calc_phi_hyd.F
415    o Added SHORTWAVE_HEATING to some files for consistency
416    checkpoint46a_pre
417    
418    checkpoint46
419    further merges from release1_p5
420    o new ctrl package
421      - adopted from ECCO environment to enable optimization
422      - added Eliassen Palm fluxes to controls
423    o added Eliassen Palm flux controls to gradient check package
424    o cost package
425      - Compatible with new ctrl package
426      - added Eliassen Palm cost hooks
427      - modif's of existing cost functions
428    o Adjoint-related bug fixes in kpp:
429      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
430      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
431    o autodiff package
432      - flow directives:
433        + new for S/R do_the_model_io
434        + enhanced for S/R checkpoint
435        + new gmredi.flow
436      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
437        disable adcommon.h/g_common.h by default.
438      - fixed problem for adjoint of global_max
439    o modified verification/carbon/
440    o New setup for adjoint of global_ocean
441    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
442    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
443    o incorporated hooks for sponge layer code (external_forcing.F)
444    
445    checkpoint45d_post
446    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
447    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
448      (affects plume_on_slope "cg2d" output)
449    o add new parameter deltaTfreesurf for free-surface time stepping
450    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
451    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
452    o change phiMin in exp1 (to agree with documentation)
453    o add new flags:
454     - T,S forcing inside/outside Adams-Bashforth
455     - turn off temp,salt advection and/or forcing
456     - for each tracer, define internal flag for multiDimAdvection & A-B
457    o monitor: change definition of KE to check conservation of Energy
458    
459    checkpoint45c_post
460    o Removed f90 comments ("!")
461    o Modified initialisations to enable exf package for MITgcm
462      (without invoking ECCO_PACKAGE).
463    o modifications to gradient check package (Martin Losch)
464      - enable centered differences
465      - modified format of standard output
466    
467    checkpoint45b_post
468    o cleaned exchange calls in cg2d
469    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
470    o included CPP option SINGLE_LAYER_MODE in thermodynamics
471      to configure barotropic setup (Martin Losch)
472    o moved some initialisations within bi,bj loop in dynamics
473      (TAF flow dependency)
474    o in initialise_varia, moved call packages_init_variables
475      before convective_adjustment_init
476      (corresponding adjustment of TAF tape initialisation).
477    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
478    
479    checkpoint45a_post
480    o compute Rho over the whole domain (extend iMin,jMin indices)
481    o specific exchange for X-slice domain (case Ny=1)
482    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
483    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
484    
485    checkpoint44h_post = checkpoint45
486    o Fix to restore differentiability:
487      place at which packages_init_variables is called in
488      initialise_varia is crucial for reverse control flow.
489    o modifications in GMRedi to enable stable adjoint
490      (corresponding modif's in thermodynamics, dynamics)
491    o added missing hook for sponge layer code in external_forcing
492    o modified test cost functions
493    o storing in gad_advection (plus removal of write(0,*)!
494    o missing headers TR1.h added in convective_adjustment routines
495    o errorMessageUnit set non-equal zero in eeboot
496      (conflict on some platforms, e.g. IBM SP3)
497    o modified carbon verif.
498    
499    checkpoint44h_pre
500    o vertical grid option: allow to put the Interface at the middle between
501      2 cell-centers ; replace delZ in pkg/kpp by drF.
502    o GM Advective form: Tracers are advected using the residual transport (=
503      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
504    
505    checkpoint44g_post
506    o fix surface correction term in multiDimAdvection (affects plume_on_slope
507      results) ; ifdef missing in thermodynamics.F
508    
509    checkpoint44f_pre,checkpoint44f_post
510    o added PTRACERS package
511      This allows an arbitrary number of passive tracers to be integrated
512      forward simultaneously with the dynamicaly model.
513      + Implemented so far:
514        - basic forward algorithm (time-stepping, advection, diffusion, convection)
515        - I/O and checkpointing
516        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
517      + Not implemented so far:
518        - KPP
519        - OBCS
520      + No specific example supplied (yet) but global_ocean.90x40x15 has the
521        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
522        line in data.pkg.
523      + This package is disabled by default since it increases storage.
524    
525    
526    o testscript: added -cleanup option
527    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
528                 b) enable to filter 2D fields.
529    
530    checkpoint44e_pre,post
531    o re-wrote convective adjustment to use pre-calculated weights
532      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
533      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
534      Original calls to convect() still in place.
535    
536    chkpt44d_pre,post
537    o added missing EXCLUDE_MONITOR flags
538    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
539      (incompatible typ in MIN/MAX expressions caused problems
540      on IBM SP3)
541    o in genmake added variable MAKEDEPEND
542      plus resetting for case SunOS
543    o added timer_stats.c routine for IBM SP3
544    o removed variables in dynamics
545    !!! I forgot to create tag chkpt44d_pre !!!
546    !!! But chkpt44d_pre = chkpt44c_post    !!!
547    
548    o real fresh water flux implemented with non-linear free-surface.
549    
550    chkpt44c_pre,post
551    o few fix (mask in shap_s2, EmPmR in external_field_load,
552      USE_NATURAL_BCS in solve_for_P);
553    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
554    
555    checkpoint44b_pre/_post
556    o merge of relevant stuff from the ecco-branch:
557      - genmake: removed $S64 overwrite for case SunOS
558      - pkg/exf: update and corrections for field swapping and obcs
559      - pkg/ecco: parameter lists for the_model_main, the_main_loop
560                  harmonized between ECCO and MITgcm
561      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
562                      updated checkpointing_lev... lists for obcs
563      - model/src: minor changes in forward_step, plot_field
564                   added directive for divided adjoint in the_main_loop
565      - pkg/mdsio: added mdsio_gl_slice
566    
567    o check parameters & config (chkpt44a_pre,post)
568    o OBC and NonLin_FrSurf.
569    
570    checkpoint44
571    o fix bug in mom_vi_del2uv
572    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
573    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
574    o update AIM experiments (NCEP input files)
575    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
576    o added some stuff for AD
577    
578    checkpoint43
579    o added two new advection tests
580    o added global 4x4 degree ocean test
581    o added test of H&S94 with free surface on cube
582    o some final mods for gradient check, adjoint,...
583    
584    checkpoint42
585      Fixed AD-related problems:
586    o Store directives up-to-date with re-arranged Adams-Bashforth
587      (mainly thermodynamics.F)
588    o New store directives for multi-dim. advection schemes
589      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
590      * new common block and key passkey
591      (mainly gad_advection.F)
592    o Modified store directives for split of dynamics/thermodynamics
593      for the case ALLOW_KPP
594    o Cleaned argument list for timestep_tracer.F
595    
596    checkpoint41
597    o re-formatted/added comments in prologues of key subroutines
598      to work with protex
599    
600    checkpoint40
601    o moved calc_gs, calc_gt and calc_tr1 back to model/src
602    o added FLT (floats) package from Arne along with demo. experiment
603    o re-arranged Adams-Bashforth scheme for tracers to allow easier
604      implementation of forward-in-time forcing terms
605    o more mods for non-linear free-surface including new variable
606    o modified multi-dim method to work on cube
607    o bug fix in KPP (from DM)
608    
609    checkpoint40pre9
610    o added DST advection schemes
611    o fix MPI bug on SGI's
612    o modifications for non-linear free-surface
613    o fixed conditionals for fixed flow/passive tracer only mode
614    o added tension/strain form of stress tensor
615    o changes to commenting of arguments for TAF/TAMC
616    o added/updated many matlab scripts
617    o added multi-dimensional advection method for tracers
618      
619    checkpoint40pre8
620    o new package rw/
621      Added method for dumping intermediate local arrays:
622      mdsio_writetile - same as mdsio_writefield except works from inside
623                        bi,bj loop
624      mdsio_writelocal - same as mdsio_writetile except works for local
625                         arrays
626      write_local_r? - higher-level wrapper for mdsio_writelocal
627      Controlled by diagFreq. Defaults to zero (ie. no dumps)
628      Example given at end of mom_vecinv.F that dumps some local arrays.
629    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
630      control flux-form versus vector invariant code.
631      Switch is runtime flag vectorInvariantMomentum (defaults to false)
632      or genmake -DISABLE ...
633    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
634      (additional storing is now needed for case vecinv;
635      currently nothing implemented to switch this storing off
636      in case fluxform is used since no CPP flag available).
637    
638    checkpoint40pre7
639    o bug fix in dynamics.F
640      calc_viscosity called before k=1,Nr loop.
641    o added some #ifdef's ALLOW_PASSIVE_TRACER
642    o cleaned initialisations in ctrl_map_ini
643      related to TAF
644    
645    checkpoint40pre6
646    o split dynamics into thermodynamics & dynamics
647    o corresponding split of calc_diffusivity into
648      calc_diffusivity, calc_viscosity
649      (kpp_calc_diff, kpp_calc_visc).
650    o Added diffkr, kapgm to control variables
651    o bug fix in gmredi_slope_limit for ldd97
652    
653    checkpoint40pre5
654    o proper initialization of Adams-Bashforth time stepping
655      + uses forward step for very first step of model (iter=0)
656    o re-generated *all* output since almost all output is modified by this
657      change (sorry but we've been putting this one off for about 2 years)
658      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
659        *not* regenerated since they are already out of date and I don't
660        want to create the impression that they are suddenly working.
661    o removed KAP stuff for DEC's
662    o modified/added many .cvsignore files in */code and */input
663    o added new expt "solid-body.cs-32x32x1"
664      + this uses an alternative form of ini_curvilinear_grid.F which
665        is not necessarily any better than the current one...
666    
667    checkpoint40pre4
668    o added re-initialisations of utrans,vtrans,rtrans in
669      calc_common_factors which are crucial for TAF.
670    o extended iMin,jMin range for calc_common_factors,
671      calc_diffusivity
672    o added option ALLOW_PASSIVE_TRACER
673    o a few minor updates and fixes
674    
675    checkpoint40pre3
676    o created calc_gtr1.F for gad package
677    o split the_main_loop and re-introduced forward_step
678    o some recomputations of nIter0 for TAMC
679    
680    checkpoint40pre2
681    o Updated to latest branch of AJA, JMC
682    o Added gradient check package
683    o Added routines for passive tracer handling
684    o Added carbon sequestration sensitivity experiment
685    
686    checkpoint39
687     o Modifications and fixes to support TAMC
688       (mainly missing or wrong directives)
689     o Corrected common blocks when fooling TAMC to produce adjoint I/O
690       in addummy_in_stepping
691     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
692     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
693     o Included following packages:
694       cal: calendar
695       exf: external forcing
696       ecco: essential routines to control use of cal, exf
697             (NB: this is not the full ECCO environment)
698     o disabled some packages by default in genmake
699    
700    checkpoint38
701     o see notes_c37_adj.txt
702     o corrected wrong layer index in external_forcing_t
703     o replaced the_main_loop/forward_step by the_main_loop
704     o removed forceoutput from write_state
705       (replaced criteria for initial/final state)
706     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
707    
708    checkpoint37
709     o mdsio.F routine split and packaged in pkg/mdsio
710       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
711        used unless genmake -disable=mdsio)
712     o allow a more precise surface-geopotential gradient for the atmosphere
713       taking into account the change in space of Alpha (=1/rho) at the surface.
714     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
715       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
716     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
717       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
718       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
719     o Time-Average diagnostics defined as a pseudo package "timeave".
720     o pickup files : old pickup (before c35) did not work with new code (c35
721       and after) unless activating 2 commented lines in initialise-varia.
722     o Non-Hydrostatic pickup file Pb fixed.
723     o bug with Rigid-lid version (since c35) fixed.  
724    
725    checkpoint36
726     o implement Crank-Nickelson barotropic time-stepping
727     o recover Time-Average diagnostics
728     o fix Pb in checkpoint (PR#19)
729     o AIM become a standard package ; clean unused CPP_kees
730    
731    checkpoint35
732     o subtantial rewrite of dynamics.f
733     o allows staggered time-stepping
734     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
735     o added bottom drag (linear + quadratic)
736    
737    checkpoint34
738     o Modified exchange routines for correct reverse simulation.
739     o Added verification output to comply with bug fix in impldiff.F
740       as of c33 (exp2, natl_box).
741     o Corrected store directives in dynamics.F
742     o Corrected array boundaries in impldiff.F
743     o Corrected array dimensions in gmredi.
744       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
745     o Added routine GLOBAL_SUM_INT to global_sum.F
746     o Added mdsio_gl.F for ECCO purposes.
747    
748    checkpoint33
749     o Fixed bug in lower BC in impldiff.F
750     o Fixed confusion about units of forcing arrays in FFIELDS.h
751       namely Fu,Fv,Qnet,Qsw,EmPmR:
752       - Removed verification/natl_box/code/external_fields_scale.F
753         (did not differ from that in model/src)
754       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
755         (see FFIELDS.h for description)
756       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
757         kpp_calc.F and kpp_transport_t.F
758       - Removed model/src/external_fields_scale.F and calls to it
759       - verification/natl_box uses flux data with "atmospheric" sign so
760         a special version of external_fields_load.F is used to
761         change the data as it's read in. This way, the arrays
762         have the right units and signs at all times tha a user could
763         possibly use them.
764     o Corrected genmake to delete a temporary file during configuration
765    
766    checkpoint32
767     o Scaling of forcing fields moved from external_forcing.F to
768       external_fields_scale.F, called directly after loading fields.
769     o Surface relaxation terms added to surface tendency fields in
770       extra subroutine.
771     o impldiff.F changed to avoid storing by TAMC of huge intermediate
772       fields.
773     o Changes in GMRedi to comply with packaging structure.
774     o Modifications and bug fixes in KPP package.
775     o Verification experiment for KPP added (verification/nat_box/)
776    
777    checkpoint31
778     o Packages interface brought in line with defined standard
779       -> new routines packages_...F
780       -> changes in initialise_fixed.F, initialise_varia.F
781       -> enables initialisation interface for ECCO package
782     o Rescaling of external forcing fields immediately after read
783       (removed from external_forcing.F)
784       -> new: surface_fields_scale.F
785       -> affects ini_foorcing.F, external_fields_load.F
786     o Computation of surface tendencies before tendency updates.
787       -> new: external_forcing_surf.F
788     o Change of variable names useGMRedi, useKPP, useECCO
789     o Further changes in dynamics.F, impldiff.F for TAMC
790     o Tested for experiments 0, 2, 4.
791       - not yet tested for GMRedi.
792       - not yet tested for KPP.
793    
794    checkpoint30
795     o Updates for OBCs
796     o New experiment for test OBCs (internal_wave)
797     o New output.txt in verification/exp4/results/
798     o Updates for KPP: calculation of viscosity corrected, new variables
799       kpp_dumpFreq and kpp_taveFreq
800     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
801       and entry for T90 in genmake
802    
803    checkpoint29
804     o packaged KPP and GM/Redi
805    
806    checkpoint28
807     o Corrected initialization of hFacMin for difference vertical coordinates
808     o Modified calculation of partial cell thickness to more robust algorithm
809     o config_summary.F: replaced write_1D_... by write_0D_...
810       read_write.F: added subroutines write_0D_...
811     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
812       included some initialisations required for TAMC.
813     o routine calc_isoslopes: modified sqrt computation to make it
814       differentiable for zero argument.
815     o routines dynamics, impldiff:
816       included store directives and tape key computations required for TAMC.
817     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
818    
819    checkpoint27
820     o fixed calc_isoslopes() to so that cancellation of terms in tensor
821       formulation works properly with variable resolution.
822     o restructured the calling tree between the_model_main() and dynamics()
823     o split initialise() into initialise_fixed() and initialise_varia()
824     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
825       in new routine ini_psurf()
826    
827    checkpoint26
828     o moved some #ifdef in optional routines to encompass everything
829       except the argument declarations. This was using up some memory.
830     o fixed macros like _ADT to work with both versions of Linux cpp
831     o cleaned up some unused and uninitialized variables
832       (helps when debugging with strict compile options)
833     o split up CPP_EEOPTIONS.h into options and macros
834       (macros are now in eesupp/inc/CPP_EEMACROS.h)
835     o patch for 2 processor JAM mode
836    
837    checkpoint25
838     o updates for OBCs and NH
839     o dramatically reduced memory usage
840     o added "JAM" routines for use on Artic network
841     o parameterization of convection by implicit vertical diffusion
842     o added a diagnostic of convective index
843     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
844       (this is was partly for OBCs and NH but also in anticipation of
845        an explicit free-surface option)
846     o initial state input files for U and V
847    
848    checkpoint24
849     o Removed some spurious "REAL"s
850     o Updated KPP to latest version from JPL
851     o Added a COS(latitude) in horizontal viscosity
852    
853    checkpoint23
854     o Added del^4 diffusion for salt and temperature
855     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
856    
857    checkpoint22
858     o Made many small changes: implicit none, format(i5), etc...
859     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
860    
861  checkpoint21  checkpoint21
862   o Introduced new I/O package that supports direct-access records (mdsio.F)   o Introduced new I/O package that supports direct-access records (mdsio.F)
863   o Split-up mid-level I/O routines   o Split-up mid-level I/O routines

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