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revision 1.38 by heimbach, Tue Apr 10 22:35:24 2001 UTC revision 1.142 by heimbach, Wed Mar 5 00:59:10 2003 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint48i_post
7    o Changes to restore differentiability of code w.r.t. previous tag
8      (mostly adding new routines to make list and replacing
9      pressure by totPhiHyd).
10    o Updated and merged grdchk package
11      - has both ADM and TLM checks
12      - works for single- and multi-proc.
13      - output cleaned
14      - worked successfully for parallel DIVA
15    o genmake:
16      - Adding -platform=SP4
17      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
18    o Modif. for DIVA:
19      ctrl_unpack should not be called in intermediate DIVA interval.
20      (similar thing would apply for active files such as
21      tbar, sbar, psbar, which should not be reinitialised;
22      only relevant for ecco-branch)
23    
24    checkpoint48h_post
25    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
26    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
27    o Added SEAICE_initialHEFF to pkg/seaice
28    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
29    
30    checkpoint48g_post
31    --- EOS:
32    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
33      store total Potential in totPhyHyd for diagnostics & EOS.
34    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
35    --- Pressure/geopotential gradient:
36    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
37    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
38      ( changes results of global_ocean_pressure )
39    o NLFS + z-coord.: add eta*Rho' contribution.
40    o accurate phiHyd when using interface-W at the middle between 2 centers
41     ( changes results of ideal_2D_oce )
42    o includes r* 2nd term in potential gradient.
43    
44    checkpoint48f_post
45    Merging from release1_p12:
46    o Modifications for using pkg/exf with pkg/seaice
47      - improved description of the various forcing configurations
48      - added basic radiation bulk formulae to pkg/exf
49      - units/sign fix for evap computation in exf_getffields.F
50      - updated verification/global_with_exf/results/output.txt
51    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
52      (SBO) core products, including oceanic mass, center-of-mass,
53      angular, and bottom pressure (see pkg/sbo/README.sbo).
54    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
55      to avoid negative values in shallow regions.
56      - updated verification/natl_box/results/output.txt
57      - updated verification/lab_sea/results/output.txt
58    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
59    o Added useSingleCpuIO option (see PARAMS.h).
60    o Updated useSingleCpuIO option in mdsio_writefield.F to
61      work with multi-field files, e.g., for single-file pickup.
62    o pkg/seaice:
63      - bug fix in growth.F: QNET for no shortwave case
64      - added HeffFile for specifying initial sea-ice thickness
65      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
66    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
67      kpp_transport_t.F, forward_step.F, and the_main_loop.F
68    o pkg/seaice:
69      - adjoint-friendly modifications
70      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
71    
72    checkpoint48e_post
73    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
74    o dynamics: change definition of computational domain & adapt mom_fluxform
75      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
76    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
77        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
78        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
79        global_ocean.90x40x15 global_with_exf global_ocean_pressure
80        inverted_barometer solid-body.cs-32x32x1
81      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
82    
83    checkpoint48d_post
84    o in preparation for r*:
85     a) use pre-computed gradient of hydrostatic potential:
86        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
87     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
88        => affects results of glob_oce_pressure (different truncation error)  
89      update output.txt of ideal_2D_oce & global_ocean_pressure
90    
91    checkpoint48d_pre
92    o in preparation for r*:
93      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
94      pass the 2 comp. of the grad. as arguments to momentum S/R.
95      but for the moment, only used if it does not change the results.
96    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
97    
98    checkpoint48c_post
99    Modifications in treatment of initial flux forcing controls
100    to avoid extra storing of flux fields.
101    
102    checkpoint48c_pre
103    o Added tidal_basin_2d experiment (currently 1D!)
104    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
105    
106    checkpoint48b_post
107    o r* coordinate added in #ifdef NONLIN_FRSURF block.
108     (modification to pressure gradient not yet implemented)
109    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
110      (for U & V) that are used for vertical advection of momentum.
111    
112    checkpoint48a_post
113    o In preparation for r*, use temp. array to compute vertical transport
114       in flux-form momentum pkg. => change results of few test-exp.
115      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
116                        lab_sea, natl_box & plume_on_slope
117    
118    checkpoint48
119    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
120    
121    checkpoint47j_post
122    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
123    o moved adexch from forward_step to addummy_in_stepping
124    o added exch in ctrl_map_...
125    o aveFreq.=0. at end of cost_final to avoid overwrite in
126      reverse checkpointing loop
127    o Yet more changes in gmredi:
128      * adgmredi_calc_tensor
129        avoiding all recomputation of gmredi_slope_limit
130      * adgmredi_x/y/rtransport
131        added flag for excessive storing to avoid recomp. of
132        u/v/rtans, dTdx/y/z
133        -> this is not really necessary and very memory-consuming
134      * adgmredi_slope_psi:
135        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
136      * gmredi_slope_limit
137        re-activated full calculation of taperfct for case 'ac02'
138    o updating verification/ adjoints of carbon, global_ocean.90x40x15
139    
140    checkpoint47i_post
141    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
142    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
143      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
144    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
145    o gmredi: fix few bugs.
146    
147    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
148    This will be a good checkpoint to plug into the ecco-branch.
149    o few modif.'s to get latest version adjointed
150      (mainly kick out code in ini_linear_phisurf)
151    o modif's to run adjoint with exactConserv
152    o case GM_BOLUS_ADVEC should be cleaned
153      S/R gmredi_slope_psi should be cleaned
154    o verification/carbon now has exactConserv=.TRUE.
155    
156    checkpoint47g_post
157    o time-average AIM output: becomes independent from statvars time-average
158      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
159    o After TAF bug fix:
160      Tested adjoint of gmredi package.
161      Tests were done with checkpoint47 rather than with latest
162      checkpoint47f_post since the latter is broken for the adjoint
163      verification/carbon/ contains both ADM and TLM gradient checks.
164    Here they are, before they get changed/lost/stolen.
165    Mostly modif.'s to fix numerical sensitivities.
166    Gradient checks OK for
167    - GM_taper_scheme:
168      * clipping
169      * ac02
170      * linear
171      * glw91
172      * dm95
173      * ldd97
174    - GMREDI_OPTIONS:
175      * GM_VISBECK_VARIABLE_K
176      * GM_NON_UNITY_DIAGONAL
177      * GM_EXTRA_DIAGONAL
178      * GM_BOLUS_ADVEC
179    in conjunction with data.gmredi parameters to be checked in
180    in a few minutes under verification/carbon/code/
181    
182    checkpoint47f_post
183    Merging from release1_p10:
184    o modifications for using pkg/exf with pkg/seaice
185      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
186        and SEAICE_EXTERNAL_FLUXES
187      - pkg/exf CPP options EXF_READ_EVAP and
188        EXF_NO_BULK_COMPUTATIONS
189      - usage examples are Experiments 8 and 9 in
190        verification/lab_sea/README
191      - verification/lab_sea default experiment now uses
192        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
193    
194    checkpoint47e_post
195    o created a tag prior to creating a branch
196    
197    checkpoint47d_post
198    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
199      at the bottom boundary had an erroneous half slip boundary condition
200    o added bottom drag and no slip boundary condition capabilities to
201      oceanic pressure coordinates code
202    o added new verification experiment global_ocean_pressure, this experiment is
203      also described in the tutorial section of the manual
204    checkpoint47d_pre
205    
206    checkpoint47c_post
207    o Added a verification experiment for a global cubed-sphere ocean run
208      -  verification/global_ocean.cubed32x32x30
209      -  uses pkg/therm_seaice and pkg/bulk_forcing
210    
211    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
212    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
213      when using P-coordinate; only implemented for atmospheric config.
214    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
215      NOTES: requires option NONLIN_FRSURF to be "#define".
216    o update advect_xz/results/output.txt (left from checkpoint44g_post)
217    
218    checkpoint47b_post
219    Merging from release1_p9:
220    o pkg/seaice
221      - removed GOTO's and added taf directives
222      - double precision constants to reduce the g77 (Linux)
223        to F77 (SGI) differences reported in release1_p8
224    o tools/genmake
225      - added SGI options
226    o verification/testscript
227      - updated to that of checkpoint47a_post
228    o verification/global_ocean.90x40x15/input/eedata
229      - modified for SGI f77 compatibility
230    o verification/lab_sea
231      - added description of sea-ice model
232      - added missing matlab routines
233      - added test of thermodynamics parallelization
234    
235    checkpoint47a_post
236    o new pkg: aim_v23
237     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
238       for now, keep the same surface forcing as before.
239     - Part-Cell implemented into AIM; check that Heat & Water are conserved
240     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
241     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
242    o add diagnostic of surface correction term in monitor output
243    
244    o bulk_force and therm_seaice
245    - Two packages:  bulk_force (Bulk forcing)
246      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
247    - Earlier integration from Stephaine Dutkiewicz
248      and Patrick Heimbach.
249    - Two ifdef statements for compile time,
250       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
251    
252    checkpoint47
253    differentiable version of checkpoint46n_post
254    o bug fix in quasihydrostaticterms
255    o * "clean" adjoint code (in terms of extensive recomputations)
256        can now be obtained for all GMREDI options (i.e. for
257        - GM_VISBECK_VARIABLE_K
258        - GM_NON_UNITY_DIAGONAL
259        - GM_EXTRA_DIAGONAL
260        - GM_BOLUS_ADVEC )
261      * However, wrong gradient check problem remains unsolved.
262      * New CPP options have been introduced for different
263        tapering schemes
264    o external_fields_load now part of differentiation list
265    o pressure needs multiple storing;
266      would be nice to have store_pressure at beginning or
267      end of forward_step, e.g. by having phiHyd global (5-dim.)
268      (NB: pressure is needed for certain cases in find_rho,
269      which is also invoked through convective_adjustment).
270    o recomputations in find_rho for cases
271     'JMD95'/'UNESCO' or 'MDJWF' are OK.
272    o #define ATMOSPHERIC_LOADING should be differentiable
273    o ini_forcing shifted to begining of initialise_varia
274    o Incorporating QNVS line search routines into MITgcm
275      (this is separate code, and therefore not under pkg)
276      lsopt/, optim/
277    o Updated verification/carbon/
278      - #define GM_VISBECK_VARIABLE_K
279      - GM_taper_scheme    = 'ldd97'    
280    
281    checkpoint46n_post
282    Merging from release1_p8:
283    o verification/natl_box:
284      updating new external_fields_load routine
285    o New package: pkg/seaice
286      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
287      The sea-ice code is based on Hibler (1979-1980).
288      Two sea-ice dynamic solvers, ADI and LSR, are included.
289      In addition to computing prognostic sea-ice variables and diagnosing
290      the forcing/external data fields that drive the ocean model,
291      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
292      The implied surface heat flux is then stored in variable
293      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
294      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
295      non-local transport term.  Because this call precedes model
296      thermodynamics, temperature under sea-ice may not be "exactly" at
297      the freezing point by the time theta is dumped or time-averaged.
298      N.B.: fairly large differences in accuracy occur across
299            different platforms/compilers; comparison between
300            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
301            generated output gives:
302       T           S           U           V
303      C D M    c        m  s        m  s        m  s        m  s
304      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
305      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
306      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
307    
308      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
309    o GAD:
310      - generated new common blocks to account for call of
311        same gad routines with differing traceridentities
312        (needed to modify tracerIdentity indices in GAD.h)
313      - generated separate common blocks for case useCubedSphereExchange
314        (Department of Futurology)
315      - parameter lists to gmredi_?transport: added tracerIdentity
316      - added new key indices to tamc.h
317    o external_fields_load:
318      - added this routine to TAF list
319      - needed to make some common blocks global and additional storing
320        along the same lines as exf package (checkpoint_lev?_directives.h)
321    o exf:
322      updated external forcing package
323      - bug fixes carried over from ecco-branch
324        (missing OBCS_OPTIONS.h in two routines)
325      - enable easy to use "no forcing".
326      - added exf I/O for atmospheric loading
327      - added exf I/O for runoff data
328      - transfered scaling between exf <-> MITgcm to exf namelist
329    o Adding new verification experiment global_with_exf.
330      This verification experiment is almost identical to the
331      global_ocean.90x40x15 experiment, except that it uses
332      the exf (and cal) package instead of the
333      external_fields_load routine (cf README file).
334    
335    checkpoint46m_post
336    o modified testscript to return -- when there are no lines of "%MON" output
337    o added new flag "quasiHydrostatic" for QH mode
338      and new routine quasihydrostaticterms()
339    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
340      New routine: mom_u_coriolis_nh()
341    o fixed sign of non-hydrostatic metric terms in u and v equations.
342      Depend on correct sign of gravitySign.
343    o added work.pc* to .cvsignore in aim directories using ifc
344    o introduced flag for controllin non-hydrostatic metric terms
345    o removed gravitySign from PARM04
346    o switched to g77/ifc from pgf77 in aim experiments
347    
348    checkpoint46l_post
349    o made convective adjustment work with pressure coordinates:
350     - changed the direction of k-loop in convective_adjustment.F for the
351       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
352     - adjusted the reference pressure k-index in convective_adjustment.F
353     - adjusted the convection condition in convect.F (in analogy to
354       calc_ivdc.F)
355     - convective_adjustment no longer computes anything on the halos
356     - removed the warnings about negative salinity from find_rho.F and
357       find_alpha.F; instead the new routine look_for_neg_salinity, called
358       at the beginning of find_rho, find_alpha, and find_beta, does a
359       check of the entire slice, if CPP-option
360       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
361    checkpoint46l_pre
362    
363    checkpoint46k_post
364    o fixed the verification/global_ocean.90x40x15 experiment:
365     - new bathymetry (the world according to A., JMC, and M.)
366     - new initial fields and forcing fields (*.bin files)
367     - new POLY3.COEFFS (for the next release one should switch to a full
368       equation of state: JMD95P or MDJWF)
369     - fixed several errors and redundancies in the data file
370     - experiment uses looped cells
371     - added matlab directory with diagnostic scripts for plotting of output
372    
373    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
374     - read AIM physics parameters from a file (data.aimphys)
375     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
376    
377    checkpoint46j_post
378    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
379    o move wVel computation at the end of the time step, in S/R integr_continuity
380    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
381    o update timeave pkg for wVel diagnostic.
382    checkpoint46j_pre
383    
384    checkpoint46i_post
385    o Clean up AIM package (and keep the results unchanged):
386      include CPP_OPTION and use IMPLICT NONE in all routines ;
387      declare all the variables _RL ; use _d 0 for all numerical constants.
388      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
389    
390    checkpoint46h_post
391    o cleaned up the use of rhoNil and rhoConst.
392      - rhoNil should only appear in the LINEAR equation of state, everywhere
393        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
394        and the dynamical equations are all divided by rhoConst
395    o introduced new parameter rhoConstFresh, a reference density of fresh
396      water, to remove the fresh water flux's dependence on rhoNil. The default
397      value is 999.8 kg/m^3
398    o cleanup up external_forcing.F and external_forcing_surf.F
399      - can now be used by both OCEANIC and OCEANICP
400    checkpoint46h_pre
401    
402     Added code to convert surface volume flux (fresh water) into
403     a mass flux when using P coordinates in the ocean (OCEANICP).
404     Note: It assumes you have set rho0=rhoConst=density of fresh water.
405    
406    checkpoint46g_post
407    o Include a new diagnostic variable phiHydLow for the ocean model
408      - in z-coordinates, it is the bottom pressure anomaly
409      - in p-coordinates, it is the sea surface elevation
410      - in both cases, these variable have global drift, reflecting the mass
411        drift in z-coordinates and the volume drift in p-coordinates
412      - included time averaging for phiHydLow, be aware of the drift!
413    o depth-dependent computation of Bo_surf for pressure coordinates
414      in the ocean (buoyancyRelation='OCEANICP')
415      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
416        Theta, Salinity, and Pressure in the parameter list. This routine is
417        presently contained in find_rho.F. This routine does not give the
418        correct density for 'POLY3', which would be a z-dependent reference
419        density.
420    o cleaned up find_rho
421      - removed obsolete 'eqn' from the parameter list.
422    o added two new verification experiments: gop and goz
423      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
424    checkpoint46g_pre
425    
426    checkpoint46f_post
427    o Enable tangent linear (forward mode) gradient checks:
428      - extended active file handling to g_... files
429      - added TANGENT_SIMULATION to theSimulationMode
430      - extended grdchk package accordingly
431    o added tangent linear setup in verification/carbon/code_ftl
432    o added adjoint setup in verification/front_relax/code_ad
433    
434    checkpoint46e_post
435    o Added new equation of state -> MDJWF
436      - EOS of McDougall et al., 2002, JAOT, submitted
437      - caveat: the equation of state is only valid for a smaller (more
438        realistic?) range of values than JMD95P/Z and UNESCO
439      - added masks to the calculation of pressure in store_pressure
440      - added more check values for density in check_eos (ini_eos.F), some of
441        the old check values are out of the range of the MDJWF-eos, so don't
442        expect perfect matches for those
443    checkpoint46e_pre
444    
445    checkpoint46d_post
446    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
447      'OCEANICP', also initialised field pressure correctly in ini_eos in the
448      case of pressure coordinates. eosType='JMD95Z' in
449      combination with buoyancyRelation='OCEANICP' now causes an error.
450    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
451      in find_alpha/beta.
452    checkpoint46d_pre
453    
454    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
455      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
456    
457    checkpoint46c_post
458    o Changes necessary for ocean in p-coordinates
459     -  Added new buoyancy relation = 'OCEANICP'
460     -  Added new parameters = gravitySign (this used to be contained inside
461        the factor dRdZ which I added when we first switched to R coordinates).
462     X GM/Redi is not compatible (yet)
463     X bottom drag and no-slip need to be debugged.
464    checkpoint46c_pre
465    
466    checkpoint46b_post
467    o Added new equation of state -> JMD95Z and JMD95P
468      - EOS of Jackett and McDougall, 1995, JAOT
469      - moved all EOS parameters into EOS.h
470      - new routines ini_eos.F, store_pressure.F
471    o Added UNESCO EOS, but not recommended because it requires
472      in-situ temperature (see JMD95)
473    o Modified formatting for knudsen2.f in utils/knudsen2 and added
474      unesco.f to be used with POLY3
475    checkpoint46b_pre
476    
477    checkpoint46a_post
478    o Added (atmospheric) pressure loading
479      - new field in FFIELDS.h, etc...
480      - new cpp flag ATMOSPHERIC_LOADING
481    o Changed hFacC to _hFacC in calc_phi_hyd.F
482    o Added SHORTWAVE_HEATING to some files for consistency
483    checkpoint46a_pre
484    
485    checkpoint46
486    further merges from release1_p5
487    o new ctrl package
488      - adopted from ECCO environment to enable optimization
489      - added Eliassen Palm fluxes to controls
490    o added Eliassen Palm flux controls to gradient check package
491    o cost package
492      - Compatible with new ctrl package
493      - added Eliassen Palm cost hooks
494      - modif's of existing cost functions
495    o Adjoint-related bug fixes in kpp:
496      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
497      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
498    o autodiff package
499      - flow directives:
500        + new for S/R do_the_model_io
501        + enhanced for S/R checkpoint
502        + new gmredi.flow
503      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
504        disable adcommon.h/g_common.h by default.
505      - fixed problem for adjoint of global_max
506    o modified verification/carbon/
507    o New setup for adjoint of global_ocean
508    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
509    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
510    o incorporated hooks for sponge layer code (external_forcing.F)
511    
512    checkpoint45d_post
513    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
514    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
515      (affects plume_on_slope "cg2d" output)
516    o add new parameter deltaTfreesurf for free-surface time stepping
517    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
518    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
519    o change phiMin in exp1 (to agree with documentation)
520    o add new flags:
521     - T,S forcing inside/outside Adams-Bashforth
522     - turn off temp,salt advection and/or forcing
523     - for each tracer, define internal flag for multiDimAdvection & A-B
524    o monitor: change definition of KE to check conservation of Energy
525    
526    checkpoint45c_post
527    o Removed f90 comments ("!")
528    o Modified initialisations to enable exf package for MITgcm
529      (without invoking ECCO_PACKAGE).
530    o modifications to gradient check package (Martin Losch)
531      - enable centered differences
532      - modified format of standard output
533    
534    checkpoint45b_post
535    o cleaned exchange calls in cg2d
536    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
537    o included CPP option SINGLE_LAYER_MODE in thermodynamics
538      to configure barotropic setup (Martin Losch)
539    o moved some initialisations within bi,bj loop in dynamics
540      (TAF flow dependency)
541    o in initialise_varia, moved call packages_init_variables
542      before convective_adjustment_init
543      (corresponding adjustment of TAF tape initialisation).
544    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
545    
546    checkpoint45a_post
547    o compute Rho over the whole domain (extend iMin,jMin indices)
548    o specific exchange for X-slice domain (case Ny=1)
549    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
550    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
551    
552    checkpoint44h_post = checkpoint45
553    o Fix to restore differentiability:
554      place at which packages_init_variables is called in
555      initialise_varia is crucial for reverse control flow.
556    o modifications in GMRedi to enable stable adjoint
557      (corresponding modif's in thermodynamics, dynamics)
558    o added missing hook for sponge layer code in external_forcing
559    o modified test cost functions
560    o storing in gad_advection (plus removal of write(0,*)!
561    o missing headers TR1.h added in convective_adjustment routines
562    o errorMessageUnit set non-equal zero in eeboot
563      (conflict on some platforms, e.g. IBM SP3)
564    o modified carbon verif.
565    
566    checkpoint44h_pre
567    o vertical grid option: allow to put the Interface at the middle between
568      2 cell-centers ; replace delZ in pkg/kpp by drF.
569    o GM Advective form: Tracers are advected using the residual transport (=
570      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
571    
572    checkpoint44g_post
573    o fix surface correction term in multiDimAdvection (affects plume_on_slope
574      results) ; ifdef missing in thermodynamics.F
575    
576    checkpoint44f_pre,checkpoint44f_post
577    o added PTRACERS package
578      This allows an arbitrary number of passive tracers to be integrated
579      forward simultaneously with the dynamicaly model.
580      + Implemented so far:
581        - basic forward algorithm (time-stepping, advection, diffusion, convection)
582        - I/O and checkpointing
583        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
584      + Not implemented so far:
585        - KPP
586        - OBCS
587      + No specific example supplied (yet) but global_ocean.90x40x15 has the
588        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
589        line in data.pkg.
590      + This package is disabled by default since it increases storage.
591    
592    
593    o testscript: added -cleanup option
594    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
595                 b) enable to filter 2D fields.
596    
597    checkpoint44e_pre,post
598    o re-wrote convective adjustment to use pre-calculated weights
599      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
600      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
601      Original calls to convect() still in place.
602    
603    chkpt44d_pre,post
604    o added missing EXCLUDE_MONITOR flags
605    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
606      (incompatible typ in MIN/MAX expressions caused problems
607      on IBM SP3)
608    o in genmake added variable MAKEDEPEND
609      plus resetting for case SunOS
610    o added timer_stats.c routine for IBM SP3
611    o removed variables in dynamics
612    !!! I forgot to create tag chkpt44d_pre !!!
613    !!! But chkpt44d_pre = chkpt44c_post    !!!
614    
615    o real fresh water flux implemented with non-linear free-surface.
616    
617    chkpt44c_pre,post
618    o few fix (mask in shap_s2, EmPmR in external_field_load,
619      USE_NATURAL_BCS in solve_for_P);
620    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
621    
622    checkpoint44b_pre/_post
623    o merge of relevant stuff from the ecco-branch:
624      - genmake: removed $S64 overwrite for case SunOS
625      - pkg/exf: update and corrections for field swapping and obcs
626      - pkg/ecco: parameter lists for the_model_main, the_main_loop
627                  harmonized between ECCO and MITgcm
628      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
629                      updated checkpointing_lev... lists for obcs
630      - model/src: minor changes in forward_step, plot_field
631                   added directive for divided adjoint in the_main_loop
632      - pkg/mdsio: added mdsio_gl_slice
633    
634    o check parameters & config (chkpt44a_pre,post)
635    o OBC and NonLin_FrSurf.
636    
637    checkpoint44
638    o fix bug in mom_vi_del2uv
639    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
640    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
641    o update AIM experiments (NCEP input files)
642    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
643    o added some stuff for AD
644    
645    checkpoint43
646    o added two new advection tests
647    o added global 4x4 degree ocean test
648    o added test of H&S94 with free surface on cube
649    o some final mods for gradient check, adjoint,...
650    
651    checkpoint42
652      Fixed AD-related problems:
653    o Store directives up-to-date with re-arranged Adams-Bashforth
654      (mainly thermodynamics.F)
655    o New store directives for multi-dim. advection schemes
656      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
657      * new common block and key passkey
658      (mainly gad_advection.F)
659    o Modified store directives for split of dynamics/thermodynamics
660      for the case ALLOW_KPP
661    o Cleaned argument list for timestep_tracer.F
662    
663    checkpoint41
664    o re-formatted/added comments in prologues of key subroutines
665      to work with protex
666    
667    checkpoint40
668    o moved calc_gs, calc_gt and calc_tr1 back to model/src
669    o added FLT (floats) package from Arne along with demo. experiment
670    o re-arranged Adams-Bashforth scheme for tracers to allow easier
671      implementation of forward-in-time forcing terms
672    o more mods for non-linear free-surface including new variable
673    o modified multi-dim method to work on cube
674    o bug fix in KPP (from DM)
675    
676    checkpoint40pre9
677    o added DST advection schemes
678    o fix MPI bug on SGI's
679    o modifications for non-linear free-surface
680    o fixed conditionals for fixed flow/passive tracer only mode
681    o added tension/strain form of stress tensor
682    o changes to commenting of arguments for TAF/TAMC
683    o added/updated many matlab scripts
684    o added multi-dimensional advection method for tracers
685      
686    checkpoint40pre8
687    o new package rw/
688      Added method for dumping intermediate local arrays:
689      mdsio_writetile - same as mdsio_writefield except works from inside
690                        bi,bj loop
691      mdsio_writelocal - same as mdsio_writetile except works for local
692                         arrays
693      write_local_r? - higher-level wrapper for mdsio_writelocal
694      Controlled by diagFreq. Defaults to zero (ie. no dumps)
695      Example given at end of mom_vecinv.F that dumps some local arrays.
696    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
697      control flux-form versus vector invariant code.
698      Switch is runtime flag vectorInvariantMomentum (defaults to false)
699      or genmake -DISABLE ...
700    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
701      (additional storing is now needed for case vecinv;
702      currently nothing implemented to switch this storing off
703      in case fluxform is used since no CPP flag available).
704    
705    checkpoint40pre7
706    o bug fix in dynamics.F
707      calc_viscosity called before k=1,Nr loop.
708    o added some #ifdef's ALLOW_PASSIVE_TRACER
709    o cleaned initialisations in ctrl_map_ini
710      related to TAF
711    
712    checkpoint40pre6
713    o split dynamics into thermodynamics & dynamics
714    o corresponding split of calc_diffusivity into
715      calc_diffusivity, calc_viscosity
716      (kpp_calc_diff, kpp_calc_visc).
717    o Added diffkr, kapgm to control variables
718    o bug fix in gmredi_slope_limit for ldd97
719    
720    checkpoint40pre5
721    o proper initialization of Adams-Bashforth time stepping
722      + uses forward step for very first step of model (iter=0)
723    o re-generated *all* output since almost all output is modified by this
724      change (sorry but we've been putting this one off for about 2 years)
725      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
726        *not* regenerated since they are already out of date and I don't
727        want to create the impression that they are suddenly working.
728    o removed KAP stuff for DEC's
729    o modified/added many .cvsignore files in */code and */input
730    o added new expt "solid-body.cs-32x32x1"
731      + this uses an alternative form of ini_curvilinear_grid.F which
732        is not necessarily any better than the current one...
733    
734    checkpoint40pre4
735    o added re-initialisations of utrans,vtrans,rtrans in
736      calc_common_factors which are crucial for TAF.
737    o extended iMin,jMin range for calc_common_factors,
738      calc_diffusivity
739    o added option ALLOW_PASSIVE_TRACER
740    o a few minor updates and fixes
741    
742    checkpoint40pre3
743    o created calc_gtr1.F for gad package
744    o split the_main_loop and re-introduced forward_step
745    o some recomputations of nIter0 for TAMC
746    
747    checkpoint40pre2
748    o Updated to latest branch of AJA, JMC
749    o Added gradient check package
750    o Added routines for passive tracer handling
751    o Added carbon sequestration sensitivity experiment
752    
753    checkpoint39
754     o Modifications and fixes to support TAMC
755       (mainly missing or wrong directives)
756     o Corrected common blocks when fooling TAMC to produce adjoint I/O
757       in addummy_in_stepping
758     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
759     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
760     o Included following packages:
761       cal: calendar
762       exf: external forcing
763       ecco: essential routines to control use of cal, exf
764             (NB: this is not the full ECCO environment)
765     o disabled some packages by default in genmake
766    
767  checkpoint38  checkpoint38
768   o see notes_c37_adj.txt   o see notes_c37_adj.txt
769   o corrected wrong layer index in external_forcing_t   o corrected wrong layer index in external_forcing_t

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