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revision 1.4 by cnh, Mon Jun 8 22:38:51 1998 UTC revision 1.135 by jmc, Tue Feb 18 19:19:56 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint48g_post
7    --- EOS:
8    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
9      store total Potential in totPhyHyd for diagnostics & EOS.
10    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
11    --- Pressure/geopotential gradient:
12    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
13    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
14      ( changes results of global_ocean_pressure )
15    o NLFS + z-coord.: add eta*Rho' contribution.
16    o accurate phiHyd when using interface-W at the middle between 2 centers
17     ( changes results of ideal_2D_oce )
18    o includes r* 2nd term in potential gradient.
19    
20    checkpoint48f_post
21    Merging from release1_p12:
22    o Modifications for using pkg/exf with pkg/seaice
23      - improved description of the various forcing configurations
24      - added basic radiation bulk formulae to pkg/exf
25      - units/sign fix for evap computation in exf_getffields.F
26      - updated verification/global_with_exf/results/output.txt
27    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
28      (SBO) core products, including oceanic mass, center-of-mass,
29      angular, and bottom pressure (see pkg/sbo/README.sbo).
30    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
31      to avoid negative values in shallow regions.
32      - updated verification/natl_box/results/output.txt
33      - updated verification/lab_sea/results/output.txt
34    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
35    o Added useSingleCpuIO option (see PARAMS.h).
36    o Updated useSingleCpuIO option in mdsio_writefield.F to
37      work with multi-field files, e.g., for single-file pickup.
38    o pkg/seaice:
39      - bug fix in growth.F: QNET for no shortwave case
40      - added HeffFile for specifying initial sea-ice thickness
41      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
42    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
43      kpp_transport_t.F, forward_step.F, and the_main_loop.F
44    o pkg/seaice:
45      - adjoint-friendly modifications
46      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
47    
48    checkpoint48e_post
49    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
50    o dynamics: change definition of computational domain & adapt mom_fluxform
51      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
52    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
53        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
54        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
55        global_ocean.90x40x15 global_with_exf global_ocean_pressure
56        inverted_barometer solid-body.cs-32x32x1
57      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
58    
59    checkpoint48d_post
60    o in preparation for r*:
61     a) use pre-computed gradient of hydrostatic potential:
62        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
63     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
64        => affects results of glob_oce_pressure (different truncation error)  
65      update output.txt of ideal_2D_oce & global_ocean_pressure
66    
67    checkpoint48d_pre
68    o in preparation for r*:
69      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
70      pass the 2 comp. of the grad. as arguments to momentum S/R.
71      but for the moment, only used if it does not change the results.
72    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
73    
74    checkpoint48c_post
75    Modifications in treatment of initial flux forcing controls
76    to avoid extra storing of flux fields.
77    
78    checkpoint48c_pre
79    o Added tidal_basin_2d experiment (currently 1D!)
80    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
81    
82    checkpoint48b_post
83    o r* coordinate added in #ifdef NONLIN_FRSURF block.
84     (modification to pressure gradient not yet implemented)
85    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
86      (for U & V) that are used for vertical advection of momentum.
87    
88    checkpoint48a_post
89    o In preparation for r*, use temp. array to compute vertical transport
90       in flux-form momentum pkg. => change results of few test-exp.
91      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
92                        lab_sea, natl_box & plume_on_slope
93    
94    checkpoint48
95    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
96    
97    checkpoint47j_post
98    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
99    o moved adexch from forward_step to addummy_in_stepping
100    o added exch in ctrl_map_...
101    o aveFreq.=0. at end of cost_final to avoid overwrite in
102      reverse checkpointing loop
103    o Yet more changes in gmredi:
104      * adgmredi_calc_tensor
105        avoiding all recomputation of gmredi_slope_limit
106      * adgmredi_x/y/rtransport
107        added flag for excessive storing to avoid recomp. of
108        u/v/rtans, dTdx/y/z
109        -> this is not really necessary and very memory-consuming
110      * adgmredi_slope_psi:
111        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
112      * gmredi_slope_limit
113        re-activated full calculation of taperfct for case 'ac02'
114    o updating verification/ adjoints of carbon, global_ocean.90x40x15
115    
116    checkpoint47i_post
117    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
118    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
119      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
120    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
121    o gmredi: fix few bugs.
122    
123    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
124    This will be a good checkpoint to plug into the ecco-branch.
125    o few modif.'s to get latest version adjointed
126      (mainly kick out code in ini_linear_phisurf)
127    o modif's to run adjoint with exactConserv
128    o case GM_BOLUS_ADVEC should be cleaned
129      S/R gmredi_slope_psi should be cleaned
130    o verification/carbon now has exactConserv=.TRUE.
131    
132    checkpoint47g_post
133    o time-average AIM output: becomes independent from statvars time-average
134      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
135    o After TAF bug fix:
136      Tested adjoint of gmredi package.
137      Tests were done with checkpoint47 rather than with latest
138      checkpoint47f_post since the latter is broken for the adjoint
139      verification/carbon/ contains both ADM and TLM gradient checks.
140    Here they are, before they get changed/lost/stolen.
141    Mostly modif.'s to fix numerical sensitivities.
142    Gradient checks OK for
143    - GM_taper_scheme:
144      * clipping
145      * ac02
146      * linear
147      * glw91
148      * dm95
149      * ldd97
150    - GMREDI_OPTIONS:
151      * GM_VISBECK_VARIABLE_K
152      * GM_NON_UNITY_DIAGONAL
153      * GM_EXTRA_DIAGONAL
154      * GM_BOLUS_ADVEC
155    in conjunction with data.gmredi parameters to be checked in
156    in a few minutes under verification/carbon/code/
157    
158    checkpoint47f_post
159    Merging from release1_p10:
160    o modifications for using pkg/exf with pkg/seaice
161      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
162        and SEAICE_EXTERNAL_FLUXES
163      - pkg/exf CPP options EXF_READ_EVAP and
164        EXF_NO_BULK_COMPUTATIONS
165      - usage examples are Experiments 8 and 9 in
166        verification/lab_sea/README
167      - verification/lab_sea default experiment now uses
168        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
169    
170    checkpoint47e_post
171    o created a tag prior to creating a branch
172    
173    checkpoint47d_post
174    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
175      at the bottom boundary had an erroneous half slip boundary condition
176    o added bottom drag and no slip boundary condition capabilities to
177      oceanic pressure coordinates code
178    o added new verification experiment global_ocean_pressure, this experiment is
179      also described in the tutorial section of the manual
180    checkpoint47d_pre
181    
182    checkpoint47c_post
183    o Added a verification experiment for a global cubed-sphere ocean run
184      -  verification/global_ocean.cubed32x32x30
185      -  uses pkg/therm_seaice and pkg/bulk_forcing
186    
187    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
188    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
189      when using P-coordinate; only implemented for atmospheric config.
190    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
191      NOTES: requires option NONLIN_FRSURF to be "#define".
192    o update advect_xz/results/output.txt (left from checkpoint44g_post)
193    
194    checkpoint47b_post
195    Merging from release1_p9:
196    o pkg/seaice
197      - removed GOTO's and added taf directives
198      - double precision constants to reduce the g77 (Linux)
199        to F77 (SGI) differences reported in release1_p8
200    o tools/genmake
201      - added SGI options
202    o verification/testscript
203      - updated to that of checkpoint47a_post
204    o verification/global_ocean.90x40x15/input/eedata
205      - modified for SGI f77 compatibility
206    o verification/lab_sea
207      - added description of sea-ice model
208      - added missing matlab routines
209      - added test of thermodynamics parallelization
210    
211    checkpoint47a_post
212    o new pkg: aim_v23
213     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
214       for now, keep the same surface forcing as before.
215     - Part-Cell implemented into AIM; check that Heat & Water are conserved
216     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
217     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
218    o add diagnostic of surface correction term in monitor output
219    
220    o bulk_force and therm_seaice
221    - Two packages:  bulk_force (Bulk forcing)
222      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
223    - Earlier integration from Stephaine Dutkiewicz
224      and Patrick Heimbach.
225    - Two ifdef statements for compile time,
226       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
227    
228    checkpoint47
229    differentiable version of checkpoint46n_post
230    o bug fix in quasihydrostaticterms
231    o * "clean" adjoint code (in terms of extensive recomputations)
232        can now be obtained for all GMREDI options (i.e. for
233        - GM_VISBECK_VARIABLE_K
234        - GM_NON_UNITY_DIAGONAL
235        - GM_EXTRA_DIAGONAL
236        - GM_BOLUS_ADVEC )
237      * However, wrong gradient check problem remains unsolved.
238      * New CPP options have been introduced for different
239        tapering schemes
240    o external_fields_load now part of differentiation list
241    o pressure needs multiple storing;
242      would be nice to have store_pressure at beginning or
243      end of forward_step, e.g. by having phiHyd global (5-dim.)
244      (NB: pressure is needed for certain cases in find_rho,
245      which is also invoked through convective_adjustment).
246    o recomputations in find_rho for cases
247     'JMD95'/'UNESCO' or 'MDJWF' are OK.
248    o #define ATMOSPHERIC_LOADING should be differentiable
249    o ini_forcing shifted to begining of initialise_varia
250    o Incorporating QNVS line search routines into MITgcm
251      (this is separate code, and therefore not under pkg)
252      lsopt/, optim/
253    o Updated verification/carbon/
254      - #define GM_VISBECK_VARIABLE_K
255      - GM_taper_scheme    = 'ldd97'    
256    
257    checkpoint46n_post
258    Merging from release1_p8:
259    o verification/natl_box:
260      updating new external_fields_load routine
261    o New package: pkg/seaice
262      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
263      The sea-ice code is based on Hibler (1979-1980).
264      Two sea-ice dynamic solvers, ADI and LSR, are included.
265      In addition to computing prognostic sea-ice variables and diagnosing
266      the forcing/external data fields that drive the ocean model,
267      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
268      The implied surface heat flux is then stored in variable
269      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
270      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
271      non-local transport term.  Because this call precedes model
272      thermodynamics, temperature under sea-ice may not be "exactly" at
273      the freezing point by the time theta is dumped or time-averaged.
274      N.B.: fairly large differences in accuracy occur across
275            different platforms/compilers; comparison between
276            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
277            generated output gives:
278       T           S           U           V
279      C D M    c        m  s        m  s        m  s        m  s
280      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
281      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
282      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
283    
284      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
285    o GAD:
286      - generated new common blocks to account for call of
287        same gad routines with differing traceridentities
288        (needed to modify tracerIdentity indices in GAD.h)
289      - generated separate common blocks for case useCubedSphereExchange
290        (Department of Futurology)
291      - parameter lists to gmredi_?transport: added tracerIdentity
292      - added new key indices to tamc.h
293    o external_fields_load:
294      - added this routine to TAF list
295      - needed to make some common blocks global and additional storing
296        along the same lines as exf package (checkpoint_lev?_directives.h)
297    o exf:
298      updated external forcing package
299      - bug fixes carried over from ecco-branch
300        (missing OBCS_OPTIONS.h in two routines)
301      - enable easy to use "no forcing".
302      - added exf I/O for atmospheric loading
303      - added exf I/O for runoff data
304      - transfered scaling between exf <-> MITgcm to exf namelist
305    o Adding new verification experiment global_with_exf.
306      This verification experiment is almost identical to the
307      global_ocean.90x40x15 experiment, except that it uses
308      the exf (and cal) package instead of the
309      external_fields_load routine (cf README file).
310    
311    checkpoint46m_post
312    o modified testscript to return -- when there are no lines of "%MON" output
313    o added new flag "quasiHydrostatic" for QH mode
314      and new routine quasihydrostaticterms()
315    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
316      New routine: mom_u_coriolis_nh()
317    o fixed sign of non-hydrostatic metric terms in u and v equations.
318      Depend on correct sign of gravitySign.
319    o added work.pc* to .cvsignore in aim directories using ifc
320    o introduced flag for controllin non-hydrostatic metric terms
321    o removed gravitySign from PARM04
322    o switched to g77/ifc from pgf77 in aim experiments
323    
324    checkpoint46l_post
325    o made convective adjustment work with pressure coordinates:
326     - changed the direction of k-loop in convective_adjustment.F for the
327       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
328     - adjusted the reference pressure k-index in convective_adjustment.F
329     - adjusted the convection condition in convect.F (in analogy to
330       calc_ivdc.F)
331     - convective_adjustment no longer computes anything on the halos
332     - removed the warnings about negative salinity from find_rho.F and
333       find_alpha.F; instead the new routine look_for_neg_salinity, called
334       at the beginning of find_rho, find_alpha, and find_beta, does a
335       check of the entire slice, if CPP-option
336       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
337    checkpoint46l_pre
338    
339    checkpoint46k_post
340    o fixed the verification/global_ocean.90x40x15 experiment:
341     - new bathymetry (the world according to A., JMC, and M.)
342     - new initial fields and forcing fields (*.bin files)
343     - new POLY3.COEFFS (for the next release one should switch to a full
344       equation of state: JMD95P or MDJWF)
345     - fixed several errors and redundancies in the data file
346     - experiment uses looped cells
347     - added matlab directory with diagnostic scripts for plotting of output
348    
349    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
350     - read AIM physics parameters from a file (data.aimphys)
351     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
352    
353    checkpoint46j_post
354    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
355    o move wVel computation at the end of the time step, in S/R integr_continuity
356    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
357    o update timeave pkg for wVel diagnostic.
358    checkpoint46j_pre
359    
360    checkpoint46i_post
361    o Clean up AIM package (and keep the results unchanged):
362      include CPP_OPTION and use IMPLICT NONE in all routines ;
363      declare all the variables _RL ; use _d 0 for all numerical constants.
364      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
365    
366    checkpoint46h_post
367    o cleaned up the use of rhoNil and rhoConst.
368      - rhoNil should only appear in the LINEAR equation of state, everywhere
369        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
370        and the dynamical equations are all divided by rhoConst
371    o introduced new parameter rhoConstFresh, a reference density of fresh
372      water, to remove the fresh water flux's dependence on rhoNil. The default
373      value is 999.8 kg/m^3
374    o cleanup up external_forcing.F and external_forcing_surf.F
375      - can now be used by both OCEANIC and OCEANICP
376    checkpoint46h_pre
377    
378     Added code to convert surface volume flux (fresh water) into
379     a mass flux when using P coordinates in the ocean (OCEANICP).
380     Note: It assumes you have set rho0=rhoConst=density of fresh water.
381    
382    checkpoint46g_post
383    o Include a new diagnostic variable phiHydLow for the ocean model
384      - in z-coordinates, it is the bottom pressure anomaly
385      - in p-coordinates, it is the sea surface elevation
386      - in both cases, these variable have global drift, reflecting the mass
387        drift in z-coordinates and the volume drift in p-coordinates
388      - included time averaging for phiHydLow, be aware of the drift!
389    o depth-dependent computation of Bo_surf for pressure coordinates
390      in the ocean (buoyancyRelation='OCEANICP')
391      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
392        Theta, Salinity, and Pressure in the parameter list. This routine is
393        presently contained in find_rho.F. This routine does not give the
394        correct density for 'POLY3', which would be a z-dependent reference
395        density.
396    o cleaned up find_rho
397      - removed obsolete 'eqn' from the parameter list.
398    o added two new verification experiments: gop and goz
399      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
400    checkpoint46g_pre
401    
402    checkpoint46f_post
403    o Enable tangent linear (forward mode) gradient checks:
404      - extended active file handling to g_... files
405      - added TANGENT_SIMULATION to theSimulationMode
406      - extended grdchk package accordingly
407    o added tangent linear setup in verification/carbon/code_ftl
408    o added adjoint setup in verification/front_relax/code_ad
409    
410    checkpoint46e_post
411    o Added new equation of state -> MDJWF
412      - EOS of McDougall et al., 2002, JAOT, submitted
413      - caveat: the equation of state is only valid for a smaller (more
414        realistic?) range of values than JMD95P/Z and UNESCO
415      - added masks to the calculation of pressure in store_pressure
416      - added more check values for density in check_eos (ini_eos.F), some of
417        the old check values are out of the range of the MDJWF-eos, so don't
418        expect perfect matches for those
419    checkpoint46e_pre
420    
421    checkpoint46d_post
422    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
423      'OCEANICP', also initialised field pressure correctly in ini_eos in the
424      case of pressure coordinates. eosType='JMD95Z' in
425      combination with buoyancyRelation='OCEANICP' now causes an error.
426    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
427      in find_alpha/beta.
428    checkpoint46d_pre
429    
430    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
431      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
432    
433    checkpoint46c_post
434    o Changes necessary for ocean in p-coordinates
435     -  Added new buoyancy relation = 'OCEANICP'
436     -  Added new parameters = gravitySign (this used to be contained inside
437        the factor dRdZ which I added when we first switched to R coordinates).
438     X GM/Redi is not compatible (yet)
439     X bottom drag and no-slip need to be debugged.
440    checkpoint46c_pre
441    
442    checkpoint46b_post
443    o Added new equation of state -> JMD95Z and JMD95P
444      - EOS of Jackett and McDougall, 1995, JAOT
445      - moved all EOS parameters into EOS.h
446      - new routines ini_eos.F, store_pressure.F
447    o Added UNESCO EOS, but not recommended because it requires
448      in-situ temperature (see JMD95)
449    o Modified formatting for knudsen2.f in utils/knudsen2 and added
450      unesco.f to be used with POLY3
451    checkpoint46b_pre
452    
453    checkpoint46a_post
454    o Added (atmospheric) pressure loading
455      - new field in FFIELDS.h, etc...
456      - new cpp flag ATMOSPHERIC_LOADING
457    o Changed hFacC to _hFacC in calc_phi_hyd.F
458    o Added SHORTWAVE_HEATING to some files for consistency
459    checkpoint46a_pre
460    
461    checkpoint46
462    further merges from release1_p5
463    o new ctrl package
464      - adopted from ECCO environment to enable optimization
465      - added Eliassen Palm fluxes to controls
466    o added Eliassen Palm flux controls to gradient check package
467    o cost package
468      - Compatible with new ctrl package
469      - added Eliassen Palm cost hooks
470      - modif's of existing cost functions
471    o Adjoint-related bug fixes in kpp:
472      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
473      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
474    o autodiff package
475      - flow directives:
476        + new for S/R do_the_model_io
477        + enhanced for S/R checkpoint
478        + new gmredi.flow
479      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
480        disable adcommon.h/g_common.h by default.
481      - fixed problem for adjoint of global_max
482    o modified verification/carbon/
483    o New setup for adjoint of global_ocean
484    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
485    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
486    o incorporated hooks for sponge layer code (external_forcing.F)
487    
488    checkpoint45d_post
489    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
490    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
491      (affects plume_on_slope "cg2d" output)
492    o add new parameter deltaTfreesurf for free-surface time stepping
493    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
494    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
495    o change phiMin in exp1 (to agree with documentation)
496    o add new flags:
497     - T,S forcing inside/outside Adams-Bashforth
498     - turn off temp,salt advection and/or forcing
499     - for each tracer, define internal flag for multiDimAdvection & A-B
500    o monitor: change definition of KE to check conservation of Energy
501    
502    checkpoint45c_post
503    o Removed f90 comments ("!")
504    o Modified initialisations to enable exf package for MITgcm
505      (without invoking ECCO_PACKAGE).
506    o modifications to gradient check package (Martin Losch)
507      - enable centered differences
508      - modified format of standard output
509    
510    checkpoint45b_post
511    o cleaned exchange calls in cg2d
512    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
513    o included CPP option SINGLE_LAYER_MODE in thermodynamics
514      to configure barotropic setup (Martin Losch)
515    o moved some initialisations within bi,bj loop in dynamics
516      (TAF flow dependency)
517    o in initialise_varia, moved call packages_init_variables
518      before convective_adjustment_init
519      (corresponding adjustment of TAF tape initialisation).
520    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
521    
522    checkpoint45a_post
523    o compute Rho over the whole domain (extend iMin,jMin indices)
524    o specific exchange for X-slice domain (case Ny=1)
525    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
526    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
527    
528    checkpoint44h_post = checkpoint45
529    o Fix to restore differentiability:
530      place at which packages_init_variables is called in
531      initialise_varia is crucial for reverse control flow.
532    o modifications in GMRedi to enable stable adjoint
533      (corresponding modif's in thermodynamics, dynamics)
534    o added missing hook for sponge layer code in external_forcing
535    o modified test cost functions
536    o storing in gad_advection (plus removal of write(0,*)!
537    o missing headers TR1.h added in convective_adjustment routines
538    o errorMessageUnit set non-equal zero in eeboot
539      (conflict on some platforms, e.g. IBM SP3)
540    o modified carbon verif.
541    
542    checkpoint44h_pre
543    o vertical grid option: allow to put the Interface at the middle between
544      2 cell-centers ; replace delZ in pkg/kpp by drF.
545    o GM Advective form: Tracers are advected using the residual transport (=
546      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
547    
548    checkpoint44g_post
549    o fix surface correction term in multiDimAdvection (affects plume_on_slope
550      results) ; ifdef missing in thermodynamics.F
551    
552    checkpoint44f_pre,checkpoint44f_post
553    o added PTRACERS package
554      This allows an arbitrary number of passive tracers to be integrated
555      forward simultaneously with the dynamicaly model.
556      + Implemented so far:
557        - basic forward algorithm (time-stepping, advection, diffusion, convection)
558        - I/O and checkpointing
559        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
560      + Not implemented so far:
561        - KPP
562        - OBCS
563      + No specific example supplied (yet) but global_ocean.90x40x15 has the
564        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
565        line in data.pkg.
566      + This package is disabled by default since it increases storage.
567    
568    
569    o testscript: added -cleanup option
570    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
571                 b) enable to filter 2D fields.
572    
573    checkpoint44e_pre,post
574    o re-wrote convective adjustment to use pre-calculated weights
575      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
576      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
577      Original calls to convect() still in place.
578    
579    chkpt44d_pre,post
580    o added missing EXCLUDE_MONITOR flags
581    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
582      (incompatible typ in MIN/MAX expressions caused problems
583      on IBM SP3)
584    o in genmake added variable MAKEDEPEND
585      plus resetting for case SunOS
586    o added timer_stats.c routine for IBM SP3
587    o removed variables in dynamics
588    !!! I forgot to create tag chkpt44d_pre !!!
589    !!! But chkpt44d_pre = chkpt44c_post    !!!
590    
591    o real fresh water flux implemented with non-linear free-surface.
592    
593    chkpt44c_pre,post
594    o few fix (mask in shap_s2, EmPmR in external_field_load,
595      USE_NATURAL_BCS in solve_for_P);
596    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
597    
598    checkpoint44b_pre/_post
599    o merge of relevant stuff from the ecco-branch:
600      - genmake: removed $S64 overwrite for case SunOS
601      - pkg/exf: update and corrections for field swapping and obcs
602      - pkg/ecco: parameter lists for the_model_main, the_main_loop
603                  harmonized between ECCO and MITgcm
604      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
605                      updated checkpointing_lev... lists for obcs
606      - model/src: minor changes in forward_step, plot_field
607                   added directive for divided adjoint in the_main_loop
608      - pkg/mdsio: added mdsio_gl_slice
609    
610    o check parameters & config (chkpt44a_pre,post)
611    o OBC and NonLin_FrSurf.
612    
613    checkpoint44
614    o fix bug in mom_vi_del2uv
615    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
616    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
617    o update AIM experiments (NCEP input files)
618    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
619    o added some stuff for AD
620    
621    checkpoint43
622    o added two new advection tests
623    o added global 4x4 degree ocean test
624    o added test of H&S94 with free surface on cube
625    o some final mods for gradient check, adjoint,...
626    
627    checkpoint42
628      Fixed AD-related problems:
629    o Store directives up-to-date with re-arranged Adams-Bashforth
630      (mainly thermodynamics.F)
631    o New store directives for multi-dim. advection schemes
632      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
633      * new common block and key passkey
634      (mainly gad_advection.F)
635    o Modified store directives for split of dynamics/thermodynamics
636      for the case ALLOW_KPP
637    o Cleaned argument list for timestep_tracer.F
638    
639    checkpoint41
640    o re-formatted/added comments in prologues of key subroutines
641      to work with protex
642    
643    checkpoint40
644    o moved calc_gs, calc_gt and calc_tr1 back to model/src
645    o added FLT (floats) package from Arne along with demo. experiment
646    o re-arranged Adams-Bashforth scheme for tracers to allow easier
647      implementation of forward-in-time forcing terms
648    o more mods for non-linear free-surface including new variable
649    o modified multi-dim method to work on cube
650    o bug fix in KPP (from DM)
651    
652    checkpoint40pre9
653    o added DST advection schemes
654    o fix MPI bug on SGI's
655    o modifications for non-linear free-surface
656    o fixed conditionals for fixed flow/passive tracer only mode
657    o added tension/strain form of stress tensor
658    o changes to commenting of arguments for TAF/TAMC
659    o added/updated many matlab scripts
660    o added multi-dimensional advection method for tracers
661      
662    checkpoint40pre8
663    o new package rw/
664      Added method for dumping intermediate local arrays:
665      mdsio_writetile - same as mdsio_writefield except works from inside
666                        bi,bj loop
667      mdsio_writelocal - same as mdsio_writetile except works for local
668                         arrays
669      write_local_r? - higher-level wrapper for mdsio_writelocal
670      Controlled by diagFreq. Defaults to zero (ie. no dumps)
671      Example given at end of mom_vecinv.F that dumps some local arrays.
672    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
673      control flux-form versus vector invariant code.
674      Switch is runtime flag vectorInvariantMomentum (defaults to false)
675      or genmake -DISABLE ...
676    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
677      (additional storing is now needed for case vecinv;
678      currently nothing implemented to switch this storing off
679      in case fluxform is used since no CPP flag available).
680    
681    checkpoint40pre7
682    o bug fix in dynamics.F
683      calc_viscosity called before k=1,Nr loop.
684    o added some #ifdef's ALLOW_PASSIVE_TRACER
685    o cleaned initialisations in ctrl_map_ini
686      related to TAF
687    
688    checkpoint40pre6
689    o split dynamics into thermodynamics & dynamics
690    o corresponding split of calc_diffusivity into
691      calc_diffusivity, calc_viscosity
692      (kpp_calc_diff, kpp_calc_visc).
693    o Added diffkr, kapgm to control variables
694    o bug fix in gmredi_slope_limit for ldd97
695    
696    checkpoint40pre5
697    o proper initialization of Adams-Bashforth time stepping
698      + uses forward step for very first step of model (iter=0)
699    o re-generated *all* output since almost all output is modified by this
700      change (sorry but we've been putting this one off for about 2 years)
701      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
702        *not* regenerated since they are already out of date and I don't
703        want to create the impression that they are suddenly working.
704    o removed KAP stuff for DEC's
705    o modified/added many .cvsignore files in */code and */input
706    o added new expt "solid-body.cs-32x32x1"
707      + this uses an alternative form of ini_curvilinear_grid.F which
708        is not necessarily any better than the current one...
709    
710    checkpoint40pre4
711    o added re-initialisations of utrans,vtrans,rtrans in
712      calc_common_factors which are crucial for TAF.
713    o extended iMin,jMin range for calc_common_factors,
714      calc_diffusivity
715    o added option ALLOW_PASSIVE_TRACER
716    o a few minor updates and fixes
717    
718    checkpoint40pre3
719    o created calc_gtr1.F for gad package
720    o split the_main_loop and re-introduced forward_step
721    o some recomputations of nIter0 for TAMC
722    
723    checkpoint40pre2
724    o Updated to latest branch of AJA, JMC
725    o Added gradient check package
726    o Added routines for passive tracer handling
727    o Added carbon sequestration sensitivity experiment
728    
729    checkpoint39
730     o Modifications and fixes to support TAMC
731       (mainly missing or wrong directives)
732     o Corrected common blocks when fooling TAMC to produce adjoint I/O
733       in addummy_in_stepping
734     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
735     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
736     o Included following packages:
737       cal: calendar
738       exf: external forcing
739       ecco: essential routines to control use of cal, exf
740             (NB: this is not the full ECCO environment)
741     o disabled some packages by default in genmake
742    
743    checkpoint38
744     o see notes_c37_adj.txt
745     o corrected wrong layer index in external_forcing_t
746     o replaced the_main_loop/forward_step by the_main_loop
747     o removed forceoutput from write_state
748       (replaced criteria for initial/final state)
749     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
750    
751    checkpoint37
752     o mdsio.F routine split and packaged in pkg/mdsio
753       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
754        used unless genmake -disable=mdsio)
755     o allow a more precise surface-geopotential gradient for the atmosphere
756       taking into account the change in space of Alpha (=1/rho) at the surface.
757     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
758       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
759     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
760       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
761       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
762     o Time-Average diagnostics defined as a pseudo package "timeave".
763     o pickup files : old pickup (before c35) did not work with new code (c35
764       and after) unless activating 2 commented lines in initialise-varia.
765     o Non-Hydrostatic pickup file Pb fixed.
766     o bug with Rigid-lid version (since c35) fixed.  
767    
768    checkpoint36
769     o implement Crank-Nickelson barotropic time-stepping
770     o recover Time-Average diagnostics
771     o fix Pb in checkpoint (PR#19)
772     o AIM become a standard package ; clean unused CPP_kees
773    
774    checkpoint35
775     o subtantial rewrite of dynamics.f
776     o allows staggered time-stepping
777     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
778     o added bottom drag (linear + quadratic)
779    
780    checkpoint34
781     o Modified exchange routines for correct reverse simulation.
782     o Added verification output to comply with bug fix in impldiff.F
783       as of c33 (exp2, natl_box).
784     o Corrected store directives in dynamics.F
785     o Corrected array boundaries in impldiff.F
786     o Corrected array dimensions in gmredi.
787       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
788     o Added routine GLOBAL_SUM_INT to global_sum.F
789     o Added mdsio_gl.F for ECCO purposes.
790    
791    checkpoint33
792     o Fixed bug in lower BC in impldiff.F
793     o Fixed confusion about units of forcing arrays in FFIELDS.h
794       namely Fu,Fv,Qnet,Qsw,EmPmR:
795       - Removed verification/natl_box/code/external_fields_scale.F
796         (did not differ from that in model/src)
797       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
798         (see FFIELDS.h for description)
799       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
800         kpp_calc.F and kpp_transport_t.F
801       - Removed model/src/external_fields_scale.F and calls to it
802       - verification/natl_box uses flux data with "atmospheric" sign so
803         a special version of external_fields_load.F is used to
804         change the data as it's read in. This way, the arrays
805         have the right units and signs at all times tha a user could
806         possibly use them.
807     o Corrected genmake to delete a temporary file during configuration
808    
809    checkpoint32
810     o Scaling of forcing fields moved from external_forcing.F to
811       external_fields_scale.F, called directly after loading fields.
812     o Surface relaxation terms added to surface tendency fields in
813       extra subroutine.
814     o impldiff.F changed to avoid storing by TAMC of huge intermediate
815       fields.
816     o Changes in GMRedi to comply with packaging structure.
817     o Modifications and bug fixes in KPP package.
818     o Verification experiment for KPP added (verification/nat_box/)
819    
820    checkpoint31
821     o Packages interface brought in line with defined standard
822       -> new routines packages_...F
823       -> changes in initialise_fixed.F, initialise_varia.F
824       -> enables initialisation interface for ECCO package
825     o Rescaling of external forcing fields immediately after read
826       (removed from external_forcing.F)
827       -> new: surface_fields_scale.F
828       -> affects ini_foorcing.F, external_fields_load.F
829     o Computation of surface tendencies before tendency updates.
830       -> new: external_forcing_surf.F
831     o Change of variable names useGMRedi, useKPP, useECCO
832     o Further changes in dynamics.F, impldiff.F for TAMC
833     o Tested for experiments 0, 2, 4.
834       - not yet tested for GMRedi.
835       - not yet tested for KPP.
836    
837    checkpoint30
838     o Updates for OBCs
839     o New experiment for test OBCs (internal_wave)
840     o New output.txt in verification/exp4/results/
841     o Updates for KPP: calculation of viscosity corrected, new variables
842       kpp_dumpFreq and kpp_taveFreq
843     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
844       and entry for T90 in genmake
845    
846    checkpoint29
847     o packaged KPP and GM/Redi
848    
849    checkpoint28
850     o Corrected initialization of hFacMin for difference vertical coordinates
851     o Modified calculation of partial cell thickness to more robust algorithm
852     o config_summary.F: replaced write_1D_... by write_0D_...
853       read_write.F: added subroutines write_0D_...
854     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
855       included some initialisations required for TAMC.
856     o routine calc_isoslopes: modified sqrt computation to make it
857       differentiable for zero argument.
858     o routines dynamics, impldiff:
859       included store directives and tape key computations required for TAMC.
860     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
861    
862    checkpoint27
863     o fixed calc_isoslopes() to so that cancellation of terms in tensor
864       formulation works properly with variable resolution.
865     o restructured the calling tree between the_model_main() and dynamics()
866     o split initialise() into initialise_fixed() and initialise_varia()
867     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
868       in new routine ini_psurf()
869    
870    checkpoint26
871     o moved some #ifdef in optional routines to encompass everything
872       except the argument declarations. This was using up some memory.
873     o fixed macros like _ADT to work with both versions of Linux cpp
874     o cleaned up some unused and uninitialized variables
875       (helps when debugging with strict compile options)
876     o split up CPP_EEOPTIONS.h into options and macros
877       (macros are now in eesupp/inc/CPP_EEMACROS.h)
878     o patch for 2 processor JAM mode
879    
880    checkpoint25
881     o updates for OBCs and NH
882     o dramatically reduced memory usage
883     o added "JAM" routines for use on Artic network
884     o parameterization of convection by implicit vertical diffusion
885     o added a diagnostic of convective index
886     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
887       (this is was partly for OBCs and NH but also in anticipation of
888        an explicit free-surface option)
889     o initial state input files for U and V
890    
891    checkpoint24
892     o Removed some spurious "REAL"s
893     o Updated KPP to latest version from JPL
894     o Added a COS(latitude) in horizontal viscosity
895    
896    checkpoint23
897     o Added del^4 diffusion for salt and temperature
898     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
899    
900    checkpoint22
901     o Made many small changes: implicit none, format(i5), etc...
902     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
903    
904    checkpoint21
905     o Introduced new I/O package that supports direct-access records (mdsio.F)
906     o Split-up mid-level I/O routines
907     o Updated input data for experiments 0,1,2,4 and 5
908     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
909    
910    checkpoint20
911     o Tidied up open-boundaries some more
912     o Added non-hydrostatic code
913     o Fixed some input data
914     o Modified MPI start-up to work in "coupled" context.
915    
916    checkpoint19
917     o Tidied up directory structure for verification experiments.
918     o Added new code for open boundaries.
919     o Corrected advective terms near boundaries.
920     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
921     o Implemented free-slip/no-slip BCs and del^4 dissipation.
922     o Split default parameters out of ini_parms.F into set_defaults.F.
923    
924    checkpoint18
925     o Further changes for optional code generation with
926       CPP - ugh!
927    
928    checkpoint17
929     o Beginning to incorporating modularity
930       for supporting atmos. and ocean configs.
931     o Small changes for TAMC complinace
932     o New ultra simple test case. Barotropic box
933       configuration "exp0".
934    
935    checkpoint16
936     o Minor changes to exchange routines to support
937       accumulation in reverse mode. Adjoint of an
938       assignment is an addition.
939     o Changes to support compilation by TAMC (LR(1)
940       syntax) and by g77 under Linux ( 72 character
941       limit ).
942    
943    checkpoint15
944     Rewrote exchange routines to allow
945     o General tile <-> tile connectivity.
946     o TAMC reverse mode flag ( is this really needed? )
947     o Variable width overlap and exchange region widths.
948     o Hooks for sharing data via DMA, Arctic, Memory Channel,
949       shmput/shmget, VIA, SYSV shmem and every other cool
950       communication method.
951    
952    checkpoint14
953     Consistent isomorphism chages made. These allow dynamical core
954     to support both pressure and meters as a vertical coordinate.
955    
956    checkpoint13
957     Release which corrects global_max problem and a couple
958     of KGM time-averaging diagnostic errors. Also contains
959     a double-gyre experiment setup as well as the baseline
960     4 degree global template. The double gyre template is
961     organised to allow it to be applied automatically to
962     the baseline configuration.
963    
964    branch-point-rdot
965     A few tidy-ups have been made bt the real point of this
966     check-point (excuse the pun) is to allow a branch to be
967     made for the purposes of adding the rDot alterations.
968     I don't want to commit the rDot to the main-trunk until
969     we've actually tested it...
970    
971    checkpoint12
972     Tidy up and added generic genmake script (formerly
973     configure script).
974     Released to testers.
975    
976    checkpoint11
977     Re-arranged initialise() and introduced ini_vertical_grid()
978     and ini_masks_etc().
979    
980    checkpoint10
981     Introduced the configure script.
982     Separated out the diags package.
983     Added template for writing time-averages of tile/intermediate quantities.
984     Updated SIZE.h in exp2 and made the data big-endian.
985    
986    checkpoint9
987     MPI fix. Filename changes (meta/data). salbin*y stuff.
988     General tidy-up.
989     SST.bin SSS.bin added to verification/exp2
990    
991    checkpoint8
992     Inludes time-dependant forcing and time-averaging.
993     Works at 4x4 and 2.8125x2.8125 global
994    
995    checkpoint7-4degree-ref
996     Branch from checkpoint7. Released for application to
997     global modeling and general modeling - process studies, regional
998     model etc..
999     Configured for verification/exp2 - 4 degree global, two process.
1000    
1001    checkpoint7
1002     Created by cnh
1003     Simple 4 degree global simulation
1004     configuration.
1005     Includes climatological wind,
1006     hydrography, bathymetry etc
1007     Does not include Heat Flux and E-P
1008    
1009  checkpoint6  checkpoint6
1010   Created by cnh   Created by cnh
1011   merged checkpoint5 with CD and   merged checkpoint5 with CD and

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