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revision 1.4 by cnh, Mon Jun 8 22:38:51 1998 UTC revision 1.134 by dimitri, Tue Feb 18 05:33:53 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint48f_post
7    Merging from release1_p12:
8    o Modifications for using pkg/exf with pkg/seaice
9      - improved description of the various forcing configurations
10      - added basic radiation bulk formulae to pkg/exf
11      - units/sign fix for evap computation in exf_getffields.F
12      - updated verification/global_with_exf/results/output.txt
13    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
14      (SBO) core products, including oceanic mass, center-of-mass,
15      angular, and bottom pressure (see pkg/sbo/README.sbo).
16    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
17      to avoid negative values in shallow regions.
18      - updated verification/natl_box/results/output.txt
19      - updated verification/lab_sea/results/output.txt
20    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
21    o Added useSingleCpuIO option (see PARAMS.h).
22    o Updated useSingleCpuIO option in mdsio_writefield.F to
23      work with multi-field files, e.g., for single-file pickup.
24    o pkg/seaice:
25      - bug fix in growth.F: QNET for no shortwave case
26      - added HeffFile for specifying initial sea-ice thickness
27      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
28    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
29      kpp_transport_t.F, forward_step.F, and the_main_loop.F
30    o pkg/seaice:
31      - adjoint-friendly modifications
32      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
33    
34    checkpoint48e_post
35    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
36    o dynamics: change definition of computational domain & adapt mom_fluxform
37      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
38    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
39        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
40        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
41        global_ocean.90x40x15 global_with_exf global_ocean_pressure
42        inverted_barometer solid-body.cs-32x32x1
43      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
44    
45    checkpoint48d_post
46    o in preparation for r*:
47     a) use pre-computed gradient of hydrostatic potential:
48        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
49     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
50        => affects results of glob_oce_pressure (different truncation error)  
51      update output.txt of ideal_2D_oce & global_ocean_pressure
52    
53    checkpoint48d_pre
54    o in preparation for r*:
55      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
56      pass the 2 comp. of the grad. as arguments to momentum S/R.
57      but for the moment, only used if it does not change the results.
58    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
59    
60    checkpoint48c_post
61    Modifications in treatment of initial flux forcing controls
62    to avoid extra storing of flux fields.
63    
64    checkpoint48c_pre
65    o Added tidal_basin_2d experiment (currently 1D!)
66    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
67    
68    checkpoint48b_post
69    o r* coordinate added in #ifdef NONLIN_FRSURF block.
70     (modification to pressure gradient not yet implemented)
71    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
72      (for U & V) that are used for vertical advection of momentum.
73    
74    checkpoint48a_post
75    o In preparation for r*, use temp. array to compute vertical transport
76       in flux-form momentum pkg. => change results of few test-exp.
77      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
78                        lab_sea, natl_box & plume_on_slope
79    
80    checkpoint48
81    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
82    
83    checkpoint47j_post
84    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
85    o moved adexch from forward_step to addummy_in_stepping
86    o added exch in ctrl_map_...
87    o aveFreq.=0. at end of cost_final to avoid overwrite in
88      reverse checkpointing loop
89    o Yet more changes in gmredi:
90      * adgmredi_calc_tensor
91        avoiding all recomputation of gmredi_slope_limit
92      * adgmredi_x/y/rtransport
93        added flag for excessive storing to avoid recomp. of
94        u/v/rtans, dTdx/y/z
95        -> this is not really necessary and very memory-consuming
96      * adgmredi_slope_psi:
97        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
98      * gmredi_slope_limit
99        re-activated full calculation of taperfct for case 'ac02'
100    o updating verification/ adjoints of carbon, global_ocean.90x40x15
101    
102    checkpoint47i_post
103    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
104    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
105      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
106    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
107    o gmredi: fix few bugs.
108    
109    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
110    This will be a good checkpoint to plug into the ecco-branch.
111    o few modif.'s to get latest version adjointed
112      (mainly kick out code in ini_linear_phisurf)
113    o modif's to run adjoint with exactConserv
114    o case GM_BOLUS_ADVEC should be cleaned
115      S/R gmredi_slope_psi should be cleaned
116    o verification/carbon now has exactConserv=.TRUE.
117    
118    checkpoint47g_post
119    o time-average AIM output: becomes independent from statvars time-average
120      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
121    o After TAF bug fix:
122      Tested adjoint of gmredi package.
123      Tests were done with checkpoint47 rather than with latest
124      checkpoint47f_post since the latter is broken for the adjoint
125      verification/carbon/ contains both ADM and TLM gradient checks.
126    Here they are, before they get changed/lost/stolen.
127    Mostly modif.'s to fix numerical sensitivities.
128    Gradient checks OK for
129    - GM_taper_scheme:
130      * clipping
131      * ac02
132      * linear
133      * glw91
134      * dm95
135      * ldd97
136    - GMREDI_OPTIONS:
137      * GM_VISBECK_VARIABLE_K
138      * GM_NON_UNITY_DIAGONAL
139      * GM_EXTRA_DIAGONAL
140      * GM_BOLUS_ADVEC
141    in conjunction with data.gmredi parameters to be checked in
142    in a few minutes under verification/carbon/code/
143    
144    checkpoint47f_post
145    Merging from release1_p10:
146    o modifications for using pkg/exf with pkg/seaice
147      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
148        and SEAICE_EXTERNAL_FLUXES
149      - pkg/exf CPP options EXF_READ_EVAP and
150        EXF_NO_BULK_COMPUTATIONS
151      - usage examples are Experiments 8 and 9 in
152        verification/lab_sea/README
153      - verification/lab_sea default experiment now uses
154        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
155    
156    checkpoint47e_post
157    o created a tag prior to creating a branch
158    
159    checkpoint47d_post
160    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
161      at the bottom boundary had an erroneous half slip boundary condition
162    o added bottom drag and no slip boundary condition capabilities to
163      oceanic pressure coordinates code
164    o added new verification experiment global_ocean_pressure, this experiment is
165      also described in the tutorial section of the manual
166    checkpoint47d_pre
167    
168    checkpoint47c_post
169    o Added a verification experiment for a global cubed-sphere ocean run
170      -  verification/global_ocean.cubed32x32x30
171      -  uses pkg/therm_seaice and pkg/bulk_forcing
172    
173    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
174    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
175      when using P-coordinate; only implemented for atmospheric config.
176    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
177      NOTES: requires option NONLIN_FRSURF to be "#define".
178    o update advect_xz/results/output.txt (left from checkpoint44g_post)
179    
180    checkpoint47b_post
181    Merging from release1_p9:
182    o pkg/seaice
183      - removed GOTO's and added taf directives
184      - double precision constants to reduce the g77 (Linux)
185        to F77 (SGI) differences reported in release1_p8
186    o tools/genmake
187      - added SGI options
188    o verification/testscript
189      - updated to that of checkpoint47a_post
190    o verification/global_ocean.90x40x15/input/eedata
191      - modified for SGI f77 compatibility
192    o verification/lab_sea
193      - added description of sea-ice model
194      - added missing matlab routines
195      - added test of thermodynamics parallelization
196    
197    checkpoint47a_post
198    o new pkg: aim_v23
199     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
200       for now, keep the same surface forcing as before.
201     - Part-Cell implemented into AIM; check that Heat & Water are conserved
202     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
203     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
204    o add diagnostic of surface correction term in monitor output
205    
206    o bulk_force and therm_seaice
207    - Two packages:  bulk_force (Bulk forcing)
208      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
209    - Earlier integration from Stephaine Dutkiewicz
210      and Patrick Heimbach.
211    - Two ifdef statements for compile time,
212       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
213    
214    checkpoint47
215    differentiable version of checkpoint46n_post
216    o bug fix in quasihydrostaticterms
217    o * "clean" adjoint code (in terms of extensive recomputations)
218        can now be obtained for all GMREDI options (i.e. for
219        - GM_VISBECK_VARIABLE_K
220        - GM_NON_UNITY_DIAGONAL
221        - GM_EXTRA_DIAGONAL
222        - GM_BOLUS_ADVEC )
223      * However, wrong gradient check problem remains unsolved.
224      * New CPP options have been introduced for different
225        tapering schemes
226    o external_fields_load now part of differentiation list
227    o pressure needs multiple storing;
228      would be nice to have store_pressure at beginning or
229      end of forward_step, e.g. by having phiHyd global (5-dim.)
230      (NB: pressure is needed for certain cases in find_rho,
231      which is also invoked through convective_adjustment).
232    o recomputations in find_rho for cases
233     'JMD95'/'UNESCO' or 'MDJWF' are OK.
234    o #define ATMOSPHERIC_LOADING should be differentiable
235    o ini_forcing shifted to begining of initialise_varia
236    o Incorporating QNVS line search routines into MITgcm
237      (this is separate code, and therefore not under pkg)
238      lsopt/, optim/
239    o Updated verification/carbon/
240      - #define GM_VISBECK_VARIABLE_K
241      - GM_taper_scheme    = 'ldd97'    
242    
243    checkpoint46n_post
244    Merging from release1_p8:
245    o verification/natl_box:
246      updating new external_fields_load routine
247    o New package: pkg/seaice
248      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
249      The sea-ice code is based on Hibler (1979-1980).
250      Two sea-ice dynamic solvers, ADI and LSR, are included.
251      In addition to computing prognostic sea-ice variables and diagnosing
252      the forcing/external data fields that drive the ocean model,
253      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
254      The implied surface heat flux is then stored in variable
255      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
256      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
257      non-local transport term.  Because this call precedes model
258      thermodynamics, temperature under sea-ice may not be "exactly" at
259      the freezing point by the time theta is dumped or time-averaged.
260      N.B.: fairly large differences in accuracy occur across
261            different platforms/compilers; comparison between
262            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
263            generated output gives:
264       T           S           U           V
265      C D M    c        m  s        m  s        m  s        m  s
266      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
267      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
268      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
269    
270      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
271    o GAD:
272      - generated new common blocks to account for call of
273        same gad routines with differing traceridentities
274        (needed to modify tracerIdentity indices in GAD.h)
275      - generated separate common blocks for case useCubedSphereExchange
276        (Department of Futurology)
277      - parameter lists to gmredi_?transport: added tracerIdentity
278      - added new key indices to tamc.h
279    o external_fields_load:
280      - added this routine to TAF list
281      - needed to make some common blocks global and additional storing
282        along the same lines as exf package (checkpoint_lev?_directives.h)
283    o exf:
284      updated external forcing package
285      - bug fixes carried over from ecco-branch
286        (missing OBCS_OPTIONS.h in two routines)
287      - enable easy to use "no forcing".
288      - added exf I/O for atmospheric loading
289      - added exf I/O for runoff data
290      - transfered scaling between exf <-> MITgcm to exf namelist
291    o Adding new verification experiment global_with_exf.
292      This verification experiment is almost identical to the
293      global_ocean.90x40x15 experiment, except that it uses
294      the exf (and cal) package instead of the
295      external_fields_load routine (cf README file).
296    
297    checkpoint46m_post
298    o modified testscript to return -- when there are no lines of "%MON" output
299    o added new flag "quasiHydrostatic" for QH mode
300      and new routine quasihydrostaticterms()
301    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
302      New routine: mom_u_coriolis_nh()
303    o fixed sign of non-hydrostatic metric terms in u and v equations.
304      Depend on correct sign of gravitySign.
305    o added work.pc* to .cvsignore in aim directories using ifc
306    o introduced flag for controllin non-hydrostatic metric terms
307    o removed gravitySign from PARM04
308    o switched to g77/ifc from pgf77 in aim experiments
309    
310    checkpoint46l_post
311    o made convective adjustment work with pressure coordinates:
312     - changed the direction of k-loop in convective_adjustment.F for the
313       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
314     - adjusted the reference pressure k-index in convective_adjustment.F
315     - adjusted the convection condition in convect.F (in analogy to
316       calc_ivdc.F)
317     - convective_adjustment no longer computes anything on the halos
318     - removed the warnings about negative salinity from find_rho.F and
319       find_alpha.F; instead the new routine look_for_neg_salinity, called
320       at the beginning of find_rho, find_alpha, and find_beta, does a
321       check of the entire slice, if CPP-option
322       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
323    checkpoint46l_pre
324    
325    checkpoint46k_post
326    o fixed the verification/global_ocean.90x40x15 experiment:
327     - new bathymetry (the world according to A., JMC, and M.)
328     - new initial fields and forcing fields (*.bin files)
329     - new POLY3.COEFFS (for the next release one should switch to a full
330       equation of state: JMD95P or MDJWF)
331     - fixed several errors and redundancies in the data file
332     - experiment uses looped cells
333     - added matlab directory with diagnostic scripts for plotting of output
334    
335    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
336     - read AIM physics parameters from a file (data.aimphys)
337     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
338    
339    checkpoint46j_post
340    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
341    o move wVel computation at the end of the time step, in S/R integr_continuity
342    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
343    o update timeave pkg for wVel diagnostic.
344    checkpoint46j_pre
345    
346    checkpoint46i_post
347    o Clean up AIM package (and keep the results unchanged):
348      include CPP_OPTION and use IMPLICT NONE in all routines ;
349      declare all the variables _RL ; use _d 0 for all numerical constants.
350      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
351    
352    checkpoint46h_post
353    o cleaned up the use of rhoNil and rhoConst.
354      - rhoNil should only appear in the LINEAR equation of state, everywhere
355        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
356        and the dynamical equations are all divided by rhoConst
357    o introduced new parameter rhoConstFresh, a reference density of fresh
358      water, to remove the fresh water flux's dependence on rhoNil. The default
359      value is 999.8 kg/m^3
360    o cleanup up external_forcing.F and external_forcing_surf.F
361      - can now be used by both OCEANIC and OCEANICP
362    checkpoint46h_pre
363    
364     Added code to convert surface volume flux (fresh water) into
365     a mass flux when using P coordinates in the ocean (OCEANICP).
366     Note: It assumes you have set rho0=rhoConst=density of fresh water.
367    
368    checkpoint46g_post
369    o Include a new diagnostic variable phiHydLow for the ocean model
370      - in z-coordinates, it is the bottom pressure anomaly
371      - in p-coordinates, it is the sea surface elevation
372      - in both cases, these variable have global drift, reflecting the mass
373        drift in z-coordinates and the volume drift in p-coordinates
374      - included time averaging for phiHydLow, be aware of the drift!
375    o depth-dependent computation of Bo_surf for pressure coordinates
376      in the ocean (buoyancyRelation='OCEANICP')
377      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
378        Theta, Salinity, and Pressure in the parameter list. This routine is
379        presently contained in find_rho.F. This routine does not give the
380        correct density for 'POLY3', which would be a z-dependent reference
381        density.
382    o cleaned up find_rho
383      - removed obsolete 'eqn' from the parameter list.
384    o added two new verification experiments: gop and goz
385      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
386    checkpoint46g_pre
387    
388    checkpoint46f_post
389    o Enable tangent linear (forward mode) gradient checks:
390      - extended active file handling to g_... files
391      - added TANGENT_SIMULATION to theSimulationMode
392      - extended grdchk package accordingly
393    o added tangent linear setup in verification/carbon/code_ftl
394    o added adjoint setup in verification/front_relax/code_ad
395    
396    checkpoint46e_post
397    o Added new equation of state -> MDJWF
398      - EOS of McDougall et al., 2002, JAOT, submitted
399      - caveat: the equation of state is only valid for a smaller (more
400        realistic?) range of values than JMD95P/Z and UNESCO
401      - added masks to the calculation of pressure in store_pressure
402      - added more check values for density in check_eos (ini_eos.F), some of
403        the old check values are out of the range of the MDJWF-eos, so don't
404        expect perfect matches for those
405    checkpoint46e_pre
406    
407    checkpoint46d_post
408    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
409      'OCEANICP', also initialised field pressure correctly in ini_eos in the
410      case of pressure coordinates. eosType='JMD95Z' in
411      combination with buoyancyRelation='OCEANICP' now causes an error.
412    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
413      in find_alpha/beta.
414    checkpoint46d_pre
415    
416    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
417      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
418    
419    checkpoint46c_post
420    o Changes necessary for ocean in p-coordinates
421     -  Added new buoyancy relation = 'OCEANICP'
422     -  Added new parameters = gravitySign (this used to be contained inside
423        the factor dRdZ which I added when we first switched to R coordinates).
424     X GM/Redi is not compatible (yet)
425     X bottom drag and no-slip need to be debugged.
426    checkpoint46c_pre
427    
428    checkpoint46b_post
429    o Added new equation of state -> JMD95Z and JMD95P
430      - EOS of Jackett and McDougall, 1995, JAOT
431      - moved all EOS parameters into EOS.h
432      - new routines ini_eos.F, store_pressure.F
433    o Added UNESCO EOS, but not recommended because it requires
434      in-situ temperature (see JMD95)
435    o Modified formatting for knudsen2.f in utils/knudsen2 and added
436      unesco.f to be used with POLY3
437    checkpoint46b_pre
438    
439    checkpoint46a_post
440    o Added (atmospheric) pressure loading
441      - new field in FFIELDS.h, etc...
442      - new cpp flag ATMOSPHERIC_LOADING
443    o Changed hFacC to _hFacC in calc_phi_hyd.F
444    o Added SHORTWAVE_HEATING to some files for consistency
445    checkpoint46a_pre
446    
447    checkpoint46
448    further merges from release1_p5
449    o new ctrl package
450      - adopted from ECCO environment to enable optimization
451      - added Eliassen Palm fluxes to controls
452    o added Eliassen Palm flux controls to gradient check package
453    o cost package
454      - Compatible with new ctrl package
455      - added Eliassen Palm cost hooks
456      - modif's of existing cost functions
457    o Adjoint-related bug fixes in kpp:
458      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
459      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
460    o autodiff package
461      - flow directives:
462        + new for S/R do_the_model_io
463        + enhanced for S/R checkpoint
464        + new gmredi.flow
465      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
466        disable adcommon.h/g_common.h by default.
467      - fixed problem for adjoint of global_max
468    o modified verification/carbon/
469    o New setup for adjoint of global_ocean
470    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
471    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
472    o incorporated hooks for sponge layer code (external_forcing.F)
473    
474    checkpoint45d_post
475    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
476    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
477      (affects plume_on_slope "cg2d" output)
478    o add new parameter deltaTfreesurf for free-surface time stepping
479    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
480    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
481    o change phiMin in exp1 (to agree with documentation)
482    o add new flags:
483     - T,S forcing inside/outside Adams-Bashforth
484     - turn off temp,salt advection and/or forcing
485     - for each tracer, define internal flag for multiDimAdvection & A-B
486    o monitor: change definition of KE to check conservation of Energy
487    
488    checkpoint45c_post
489    o Removed f90 comments ("!")
490    o Modified initialisations to enable exf package for MITgcm
491      (without invoking ECCO_PACKAGE).
492    o modifications to gradient check package (Martin Losch)
493      - enable centered differences
494      - modified format of standard output
495    
496    checkpoint45b_post
497    o cleaned exchange calls in cg2d
498    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
499    o included CPP option SINGLE_LAYER_MODE in thermodynamics
500      to configure barotropic setup (Martin Losch)
501    o moved some initialisations within bi,bj loop in dynamics
502      (TAF flow dependency)
503    o in initialise_varia, moved call packages_init_variables
504      before convective_adjustment_init
505      (corresponding adjustment of TAF tape initialisation).
506    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
507    
508    checkpoint45a_post
509    o compute Rho over the whole domain (extend iMin,jMin indices)
510    o specific exchange for X-slice domain (case Ny=1)
511    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
512    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
513    
514    checkpoint44h_post = checkpoint45
515    o Fix to restore differentiability:
516      place at which packages_init_variables is called in
517      initialise_varia is crucial for reverse control flow.
518    o modifications in GMRedi to enable stable adjoint
519      (corresponding modif's in thermodynamics, dynamics)
520    o added missing hook for sponge layer code in external_forcing
521    o modified test cost functions
522    o storing in gad_advection (plus removal of write(0,*)!
523    o missing headers TR1.h added in convective_adjustment routines
524    o errorMessageUnit set non-equal zero in eeboot
525      (conflict on some platforms, e.g. IBM SP3)
526    o modified carbon verif.
527    
528    checkpoint44h_pre
529    o vertical grid option: allow to put the Interface at the middle between
530      2 cell-centers ; replace delZ in pkg/kpp by drF.
531    o GM Advective form: Tracers are advected using the residual transport (=
532      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
533    
534    checkpoint44g_post
535    o fix surface correction term in multiDimAdvection (affects plume_on_slope
536      results) ; ifdef missing in thermodynamics.F
537    
538    checkpoint44f_pre,checkpoint44f_post
539    o added PTRACERS package
540      This allows an arbitrary number of passive tracers to be integrated
541      forward simultaneously with the dynamicaly model.
542      + Implemented so far:
543        - basic forward algorithm (time-stepping, advection, diffusion, convection)
544        - I/O and checkpointing
545        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
546      + Not implemented so far:
547        - KPP
548        - OBCS
549      + No specific example supplied (yet) but global_ocean.90x40x15 has the
550        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
551        line in data.pkg.
552      + This package is disabled by default since it increases storage.
553    
554    
555    o testscript: added -cleanup option
556    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
557                 b) enable to filter 2D fields.
558    
559    checkpoint44e_pre,post
560    o re-wrote convective adjustment to use pre-calculated weights
561      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
562      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
563      Original calls to convect() still in place.
564    
565    chkpt44d_pre,post
566    o added missing EXCLUDE_MONITOR flags
567    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
568      (incompatible typ in MIN/MAX expressions caused problems
569      on IBM SP3)
570    o in genmake added variable MAKEDEPEND
571      plus resetting for case SunOS
572    o added timer_stats.c routine for IBM SP3
573    o removed variables in dynamics
574    !!! I forgot to create tag chkpt44d_pre !!!
575    !!! But chkpt44d_pre = chkpt44c_post    !!!
576    
577    o real fresh water flux implemented with non-linear free-surface.
578    
579    chkpt44c_pre,post
580    o few fix (mask in shap_s2, EmPmR in external_field_load,
581      USE_NATURAL_BCS in solve_for_P);
582    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
583    
584    checkpoint44b_pre/_post
585    o merge of relevant stuff from the ecco-branch:
586      - genmake: removed $S64 overwrite for case SunOS
587      - pkg/exf: update and corrections for field swapping and obcs
588      - pkg/ecco: parameter lists for the_model_main, the_main_loop
589                  harmonized between ECCO and MITgcm
590      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
591                      updated checkpointing_lev... lists for obcs
592      - model/src: minor changes in forward_step, plot_field
593                   added directive for divided adjoint in the_main_loop
594      - pkg/mdsio: added mdsio_gl_slice
595    
596    o check parameters & config (chkpt44a_pre,post)
597    o OBC and NonLin_FrSurf.
598    
599    checkpoint44
600    o fix bug in mom_vi_del2uv
601    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
602    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
603    o update AIM experiments (NCEP input files)
604    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
605    o added some stuff for AD
606    
607    checkpoint43
608    o added two new advection tests
609    o added global 4x4 degree ocean test
610    o added test of H&S94 with free surface on cube
611    o some final mods for gradient check, adjoint,...
612    
613    checkpoint42
614      Fixed AD-related problems:
615    o Store directives up-to-date with re-arranged Adams-Bashforth
616      (mainly thermodynamics.F)
617    o New store directives for multi-dim. advection schemes
618      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
619      * new common block and key passkey
620      (mainly gad_advection.F)
621    o Modified store directives for split of dynamics/thermodynamics
622      for the case ALLOW_KPP
623    o Cleaned argument list for timestep_tracer.F
624    
625    checkpoint41
626    o re-formatted/added comments in prologues of key subroutines
627      to work with protex
628    
629    checkpoint40
630    o moved calc_gs, calc_gt and calc_tr1 back to model/src
631    o added FLT (floats) package from Arne along with demo. experiment
632    o re-arranged Adams-Bashforth scheme for tracers to allow easier
633      implementation of forward-in-time forcing terms
634    o more mods for non-linear free-surface including new variable
635    o modified multi-dim method to work on cube
636    o bug fix in KPP (from DM)
637    
638    checkpoint40pre9
639    o added DST advection schemes
640    o fix MPI bug on SGI's
641    o modifications for non-linear free-surface
642    o fixed conditionals for fixed flow/passive tracer only mode
643    o added tension/strain form of stress tensor
644    o changes to commenting of arguments for TAF/TAMC
645    o added/updated many matlab scripts
646    o added multi-dimensional advection method for tracers
647      
648    checkpoint40pre8
649    o new package rw/
650      Added method for dumping intermediate local arrays:
651      mdsio_writetile - same as mdsio_writefield except works from inside
652                        bi,bj loop
653      mdsio_writelocal - same as mdsio_writetile except works for local
654                         arrays
655      write_local_r? - higher-level wrapper for mdsio_writelocal
656      Controlled by diagFreq. Defaults to zero (ie. no dumps)
657      Example given at end of mom_vecinv.F that dumps some local arrays.
658    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
659      control flux-form versus vector invariant code.
660      Switch is runtime flag vectorInvariantMomentum (defaults to false)
661      or genmake -DISABLE ...
662    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
663      (additional storing is now needed for case vecinv;
664      currently nothing implemented to switch this storing off
665      in case fluxform is used since no CPP flag available).
666    
667    checkpoint40pre7
668    o bug fix in dynamics.F
669      calc_viscosity called before k=1,Nr loop.
670    o added some #ifdef's ALLOW_PASSIVE_TRACER
671    o cleaned initialisations in ctrl_map_ini
672      related to TAF
673    
674    checkpoint40pre6
675    o split dynamics into thermodynamics & dynamics
676    o corresponding split of calc_diffusivity into
677      calc_diffusivity, calc_viscosity
678      (kpp_calc_diff, kpp_calc_visc).
679    o Added diffkr, kapgm to control variables
680    o bug fix in gmredi_slope_limit for ldd97
681    
682    checkpoint40pre5
683    o proper initialization of Adams-Bashforth time stepping
684      + uses forward step for very first step of model (iter=0)
685    o re-generated *all* output since almost all output is modified by this
686      change (sorry but we've been putting this one off for about 2 years)
687      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
688        *not* regenerated since they are already out of date and I don't
689        want to create the impression that they are suddenly working.
690    o removed KAP stuff for DEC's
691    o modified/added many .cvsignore files in */code and */input
692    o added new expt "solid-body.cs-32x32x1"
693      + this uses an alternative form of ini_curvilinear_grid.F which
694        is not necessarily any better than the current one...
695    
696    checkpoint40pre4
697    o added re-initialisations of utrans,vtrans,rtrans in
698      calc_common_factors which are crucial for TAF.
699    o extended iMin,jMin range for calc_common_factors,
700      calc_diffusivity
701    o added option ALLOW_PASSIVE_TRACER
702    o a few minor updates and fixes
703    
704    checkpoint40pre3
705    o created calc_gtr1.F for gad package
706    o split the_main_loop and re-introduced forward_step
707    o some recomputations of nIter0 for TAMC
708    
709    checkpoint40pre2
710    o Updated to latest branch of AJA, JMC
711    o Added gradient check package
712    o Added routines for passive tracer handling
713    o Added carbon sequestration sensitivity experiment
714    
715    checkpoint39
716     o Modifications and fixes to support TAMC
717       (mainly missing or wrong directives)
718     o Corrected common blocks when fooling TAMC to produce adjoint I/O
719       in addummy_in_stepping
720     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
721     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
722     o Included following packages:
723       cal: calendar
724       exf: external forcing
725       ecco: essential routines to control use of cal, exf
726             (NB: this is not the full ECCO environment)
727     o disabled some packages by default in genmake
728    
729    checkpoint38
730     o see notes_c37_adj.txt
731     o corrected wrong layer index in external_forcing_t
732     o replaced the_main_loop/forward_step by the_main_loop
733     o removed forceoutput from write_state
734       (replaced criteria for initial/final state)
735     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
736    
737    checkpoint37
738     o mdsio.F routine split and packaged in pkg/mdsio
739       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
740        used unless genmake -disable=mdsio)
741     o allow a more precise surface-geopotential gradient for the atmosphere
742       taking into account the change in space of Alpha (=1/rho) at the surface.
743     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
744       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
745     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
746       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
747       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
748     o Time-Average diagnostics defined as a pseudo package "timeave".
749     o pickup files : old pickup (before c35) did not work with new code (c35
750       and after) unless activating 2 commented lines in initialise-varia.
751     o Non-Hydrostatic pickup file Pb fixed.
752     o bug with Rigid-lid version (since c35) fixed.  
753    
754    checkpoint36
755     o implement Crank-Nickelson barotropic time-stepping
756     o recover Time-Average diagnostics
757     o fix Pb in checkpoint (PR#19)
758     o AIM become a standard package ; clean unused CPP_kees
759    
760    checkpoint35
761     o subtantial rewrite of dynamics.f
762     o allows staggered time-stepping
763     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
764     o added bottom drag (linear + quadratic)
765    
766    checkpoint34
767     o Modified exchange routines for correct reverse simulation.
768     o Added verification output to comply with bug fix in impldiff.F
769       as of c33 (exp2, natl_box).
770     o Corrected store directives in dynamics.F
771     o Corrected array boundaries in impldiff.F
772     o Corrected array dimensions in gmredi.
773       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
774     o Added routine GLOBAL_SUM_INT to global_sum.F
775     o Added mdsio_gl.F for ECCO purposes.
776    
777    checkpoint33
778     o Fixed bug in lower BC in impldiff.F
779     o Fixed confusion about units of forcing arrays in FFIELDS.h
780       namely Fu,Fv,Qnet,Qsw,EmPmR:
781       - Removed verification/natl_box/code/external_fields_scale.F
782         (did not differ from that in model/src)
783       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
784         (see FFIELDS.h for description)
785       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
786         kpp_calc.F and kpp_transport_t.F
787       - Removed model/src/external_fields_scale.F and calls to it
788       - verification/natl_box uses flux data with "atmospheric" sign so
789         a special version of external_fields_load.F is used to
790         change the data as it's read in. This way, the arrays
791         have the right units and signs at all times tha a user could
792         possibly use them.
793     o Corrected genmake to delete a temporary file during configuration
794    
795    checkpoint32
796     o Scaling of forcing fields moved from external_forcing.F to
797       external_fields_scale.F, called directly after loading fields.
798     o Surface relaxation terms added to surface tendency fields in
799       extra subroutine.
800     o impldiff.F changed to avoid storing by TAMC of huge intermediate
801       fields.
802     o Changes in GMRedi to comply with packaging structure.
803     o Modifications and bug fixes in KPP package.
804     o Verification experiment for KPP added (verification/nat_box/)
805    
806    checkpoint31
807     o Packages interface brought in line with defined standard
808       -> new routines packages_...F
809       -> changes in initialise_fixed.F, initialise_varia.F
810       -> enables initialisation interface for ECCO package
811     o Rescaling of external forcing fields immediately after read
812       (removed from external_forcing.F)
813       -> new: surface_fields_scale.F
814       -> affects ini_foorcing.F, external_fields_load.F
815     o Computation of surface tendencies before tendency updates.
816       -> new: external_forcing_surf.F
817     o Change of variable names useGMRedi, useKPP, useECCO
818     o Further changes in dynamics.F, impldiff.F for TAMC
819     o Tested for experiments 0, 2, 4.
820       - not yet tested for GMRedi.
821       - not yet tested for KPP.
822    
823    checkpoint30
824     o Updates for OBCs
825     o New experiment for test OBCs (internal_wave)
826     o New output.txt in verification/exp4/results/
827     o Updates for KPP: calculation of viscosity corrected, new variables
828       kpp_dumpFreq and kpp_taveFreq
829     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
830       and entry for T90 in genmake
831    
832    checkpoint29
833     o packaged KPP and GM/Redi
834    
835    checkpoint28
836     o Corrected initialization of hFacMin for difference vertical coordinates
837     o Modified calculation of partial cell thickness to more robust algorithm
838     o config_summary.F: replaced write_1D_... by write_0D_...
839       read_write.F: added subroutines write_0D_...
840     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
841       included some initialisations required for TAMC.
842     o routine calc_isoslopes: modified sqrt computation to make it
843       differentiable for zero argument.
844     o routines dynamics, impldiff:
845       included store directives and tape key computations required for TAMC.
846     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
847    
848    checkpoint27
849     o fixed calc_isoslopes() to so that cancellation of terms in tensor
850       formulation works properly with variable resolution.
851     o restructured the calling tree between the_model_main() and dynamics()
852     o split initialise() into initialise_fixed() and initialise_varia()
853     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
854       in new routine ini_psurf()
855    
856    checkpoint26
857     o moved some #ifdef in optional routines to encompass everything
858       except the argument declarations. This was using up some memory.
859     o fixed macros like _ADT to work with both versions of Linux cpp
860     o cleaned up some unused and uninitialized variables
861       (helps when debugging with strict compile options)
862     o split up CPP_EEOPTIONS.h into options and macros
863       (macros are now in eesupp/inc/CPP_EEMACROS.h)
864     o patch for 2 processor JAM mode
865    
866    checkpoint25
867     o updates for OBCs and NH
868     o dramatically reduced memory usage
869     o added "JAM" routines for use on Artic network
870     o parameterization of convection by implicit vertical diffusion
871     o added a diagnostic of convective index
872     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
873       (this is was partly for OBCs and NH but also in anticipation of
874        an explicit free-surface option)
875     o initial state input files for U and V
876    
877    checkpoint24
878     o Removed some spurious "REAL"s
879     o Updated KPP to latest version from JPL
880     o Added a COS(latitude) in horizontal viscosity
881    
882    checkpoint23
883     o Added del^4 diffusion for salt and temperature
884     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
885    
886    checkpoint22
887     o Made many small changes: implicit none, format(i5), etc...
888     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
889    
890    checkpoint21
891     o Introduced new I/O package that supports direct-access records (mdsio.F)
892     o Split-up mid-level I/O routines
893     o Updated input data for experiments 0,1,2,4 and 5
894     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
895    
896    checkpoint20
897     o Tidied up open-boundaries some more
898     o Added non-hydrostatic code
899     o Fixed some input data
900     o Modified MPI start-up to work in "coupled" context.
901    
902    checkpoint19
903     o Tidied up directory structure for verification experiments.
904     o Added new code for open boundaries.
905     o Corrected advective terms near boundaries.
906     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
907     o Implemented free-slip/no-slip BCs and del^4 dissipation.
908     o Split default parameters out of ini_parms.F into set_defaults.F.
909    
910    checkpoint18
911     o Further changes for optional code generation with
912       CPP - ugh!
913    
914    checkpoint17
915     o Beginning to incorporating modularity
916       for supporting atmos. and ocean configs.
917     o Small changes for TAMC complinace
918     o New ultra simple test case. Barotropic box
919       configuration "exp0".
920    
921    checkpoint16
922     o Minor changes to exchange routines to support
923       accumulation in reverse mode. Adjoint of an
924       assignment is an addition.
925     o Changes to support compilation by TAMC (LR(1)
926       syntax) and by g77 under Linux ( 72 character
927       limit ).
928    
929    checkpoint15
930     Rewrote exchange routines to allow
931     o General tile <-> tile connectivity.
932     o TAMC reverse mode flag ( is this really needed? )
933     o Variable width overlap and exchange region widths.
934     o Hooks for sharing data via DMA, Arctic, Memory Channel,
935       shmput/shmget, VIA, SYSV shmem and every other cool
936       communication method.
937    
938    checkpoint14
939     Consistent isomorphism chages made. These allow dynamical core
940     to support both pressure and meters as a vertical coordinate.
941    
942    checkpoint13
943     Release which corrects global_max problem and a couple
944     of KGM time-averaging diagnostic errors. Also contains
945     a double-gyre experiment setup as well as the baseline
946     4 degree global template. The double gyre template is
947     organised to allow it to be applied automatically to
948     the baseline configuration.
949    
950    branch-point-rdot
951     A few tidy-ups have been made bt the real point of this
952     check-point (excuse the pun) is to allow a branch to be
953     made for the purposes of adding the rDot alterations.
954     I don't want to commit the rDot to the main-trunk until
955     we've actually tested it...
956    
957    checkpoint12
958     Tidy up and added generic genmake script (formerly
959     configure script).
960     Released to testers.
961    
962    checkpoint11
963     Re-arranged initialise() and introduced ini_vertical_grid()
964     and ini_masks_etc().
965    
966    checkpoint10
967     Introduced the configure script.
968     Separated out the diags package.
969     Added template for writing time-averages of tile/intermediate quantities.
970     Updated SIZE.h in exp2 and made the data big-endian.
971    
972    checkpoint9
973     MPI fix. Filename changes (meta/data). salbin*y stuff.
974     General tidy-up.
975     SST.bin SSS.bin added to verification/exp2
976    
977    checkpoint8
978     Inludes time-dependant forcing and time-averaging.
979     Works at 4x4 and 2.8125x2.8125 global
980    
981    checkpoint7-4degree-ref
982     Branch from checkpoint7. Released for application to
983     global modeling and general modeling - process studies, regional
984     model etc..
985     Configured for verification/exp2 - 4 degree global, two process.
986    
987    checkpoint7
988     Created by cnh
989     Simple 4 degree global simulation
990     configuration.
991     Includes climatological wind,
992     hydrography, bathymetry etc
993     Does not include Heat Flux and E-P
994    
995  checkpoint6  checkpoint6
996   Created by cnh   Created by cnh
997   merged checkpoint5 with CD and   merged checkpoint5 with CD and

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