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revision 1.5 by cnh, Mon Jun 15 05:13:55 1998 UTC revision 1.138 by dimitri, Thu Feb 27 22:34:38 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    untagged
7    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
8    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
9    o Added SEAICE_initialHEFF to pkg/seaice
10    o SEAICE_WRITE_PICKUP needs to be called before WRITE_CHECKPOINT
11    
12    checkpoint48g_post
13    --- EOS:
14    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
15      store total Potential in totPhyHyd for diagnostics & EOS.
16    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
17    --- Pressure/geopotential gradient:
18    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
19    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
20      ( changes results of global_ocean_pressure )
21    o NLFS + z-coord.: add eta*Rho' contribution.
22    o accurate phiHyd when using interface-W at the middle between 2 centers
23     ( changes results of ideal_2D_oce )
24    o includes r* 2nd term in potential gradient.
25    
26    checkpoint48f_post
27    Merging from release1_p12:
28    o Modifications for using pkg/exf with pkg/seaice
29      - improved description of the various forcing configurations
30      - added basic radiation bulk formulae to pkg/exf
31      - units/sign fix for evap computation in exf_getffields.F
32      - updated verification/global_with_exf/results/output.txt
33    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
34      (SBO) core products, including oceanic mass, center-of-mass,
35      angular, and bottom pressure (see pkg/sbo/README.sbo).
36    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
37      to avoid negative values in shallow regions.
38      - updated verification/natl_box/results/output.txt
39      - updated verification/lab_sea/results/output.txt
40    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
41    o Added useSingleCpuIO option (see PARAMS.h).
42    o Updated useSingleCpuIO option in mdsio_writefield.F to
43      work with multi-field files, e.g., for single-file pickup.
44    o pkg/seaice:
45      - bug fix in growth.F: QNET for no shortwave case
46      - added HeffFile for specifying initial sea-ice thickness
47      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
48    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
49      kpp_transport_t.F, forward_step.F, and the_main_loop.F
50    o pkg/seaice:
51      - adjoint-friendly modifications
52      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
53    
54    checkpoint48e_post
55    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
56    o dynamics: change definition of computational domain & adapt mom_fluxform
57      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
58    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
59        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
60        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
61        global_ocean.90x40x15 global_with_exf global_ocean_pressure
62        inverted_barometer solid-body.cs-32x32x1
63      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
64    
65    checkpoint48d_post
66    o in preparation for r*:
67     a) use pre-computed gradient of hydrostatic potential:
68        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
69     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
70        => affects results of glob_oce_pressure (different truncation error)  
71      update output.txt of ideal_2D_oce & global_ocean_pressure
72    
73    checkpoint48d_pre
74    o in preparation for r*:
75      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
76      pass the 2 comp. of the grad. as arguments to momentum S/R.
77      but for the moment, only used if it does not change the results.
78    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
79    
80    checkpoint48c_post
81    Modifications in treatment of initial flux forcing controls
82    to avoid extra storing of flux fields.
83    
84    checkpoint48c_pre
85    o Added tidal_basin_2d experiment (currently 1D!)
86    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
87    
88    checkpoint48b_post
89    o r* coordinate added in #ifdef NONLIN_FRSURF block.
90     (modification to pressure gradient not yet implemented)
91    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
92      (for U & V) that are used for vertical advection of momentum.
93    
94    checkpoint48a_post
95    o In preparation for r*, use temp. array to compute vertical transport
96       in flux-form momentum pkg. => change results of few test-exp.
97      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
98                        lab_sea, natl_box & plume_on_slope
99    
100    checkpoint48
101    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
102    
103    checkpoint47j_post
104    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
105    o moved adexch from forward_step to addummy_in_stepping
106    o added exch in ctrl_map_...
107    o aveFreq.=0. at end of cost_final to avoid overwrite in
108      reverse checkpointing loop
109    o Yet more changes in gmredi:
110      * adgmredi_calc_tensor
111        avoiding all recomputation of gmredi_slope_limit
112      * adgmredi_x/y/rtransport
113        added flag for excessive storing to avoid recomp. of
114        u/v/rtans, dTdx/y/z
115        -> this is not really necessary and very memory-consuming
116      * adgmredi_slope_psi:
117        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
118      * gmredi_slope_limit
119        re-activated full calculation of taperfct for case 'ac02'
120    o updating verification/ adjoints of carbon, global_ocean.90x40x15
121    
122    checkpoint47i_post
123    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
124    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
125      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
126    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
127    o gmredi: fix few bugs.
128    
129    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
130    This will be a good checkpoint to plug into the ecco-branch.
131    o few modif.'s to get latest version adjointed
132      (mainly kick out code in ini_linear_phisurf)
133    o modif's to run adjoint with exactConserv
134    o case GM_BOLUS_ADVEC should be cleaned
135      S/R gmredi_slope_psi should be cleaned
136    o verification/carbon now has exactConserv=.TRUE.
137    
138    checkpoint47g_post
139    o time-average AIM output: becomes independent from statvars time-average
140      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
141    o After TAF bug fix:
142      Tested adjoint of gmredi package.
143      Tests were done with checkpoint47 rather than with latest
144      checkpoint47f_post since the latter is broken for the adjoint
145      verification/carbon/ contains both ADM and TLM gradient checks.
146    Here they are, before they get changed/lost/stolen.
147    Mostly modif.'s to fix numerical sensitivities.
148    Gradient checks OK for
149    - GM_taper_scheme:
150      * clipping
151      * ac02
152      * linear
153      * glw91
154      * dm95
155      * ldd97
156    - GMREDI_OPTIONS:
157      * GM_VISBECK_VARIABLE_K
158      * GM_NON_UNITY_DIAGONAL
159      * GM_EXTRA_DIAGONAL
160      * GM_BOLUS_ADVEC
161    in conjunction with data.gmredi parameters to be checked in
162    in a few minutes under verification/carbon/code/
163    
164    checkpoint47f_post
165    Merging from release1_p10:
166    o modifications for using pkg/exf with pkg/seaice
167      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
168        and SEAICE_EXTERNAL_FLUXES
169      - pkg/exf CPP options EXF_READ_EVAP and
170        EXF_NO_BULK_COMPUTATIONS
171      - usage examples are Experiments 8 and 9 in
172        verification/lab_sea/README
173      - verification/lab_sea default experiment now uses
174        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
175    
176    checkpoint47e_post
177    o created a tag prior to creating a branch
178    
179    checkpoint47d_post
180    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
181      at the bottom boundary had an erroneous half slip boundary condition
182    o added bottom drag and no slip boundary condition capabilities to
183      oceanic pressure coordinates code
184    o added new verification experiment global_ocean_pressure, this experiment is
185      also described in the tutorial section of the manual
186    checkpoint47d_pre
187    
188    checkpoint47c_post
189    o Added a verification experiment for a global cubed-sphere ocean run
190      -  verification/global_ocean.cubed32x32x30
191      -  uses pkg/therm_seaice and pkg/bulk_forcing
192    
193    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
194    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
195      when using P-coordinate; only implemented for atmospheric config.
196    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
197      NOTES: requires option NONLIN_FRSURF to be "#define".
198    o update advect_xz/results/output.txt (left from checkpoint44g_post)
199    
200    checkpoint47b_post
201    Merging from release1_p9:
202    o pkg/seaice
203      - removed GOTO's and added taf directives
204      - double precision constants to reduce the g77 (Linux)
205        to F77 (SGI) differences reported in release1_p8
206    o tools/genmake
207      - added SGI options
208    o verification/testscript
209      - updated to that of checkpoint47a_post
210    o verification/global_ocean.90x40x15/input/eedata
211      - modified for SGI f77 compatibility
212    o verification/lab_sea
213      - added description of sea-ice model
214      - added missing matlab routines
215      - added test of thermodynamics parallelization
216    
217    checkpoint47a_post
218    o new pkg: aim_v23
219     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
220       for now, keep the same surface forcing as before.
221     - Part-Cell implemented into AIM; check that Heat & Water are conserved
222     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
223     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
224    o add diagnostic of surface correction term in monitor output
225    
226    o bulk_force and therm_seaice
227    - Two packages:  bulk_force (Bulk forcing)
228      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
229    - Earlier integration from Stephaine Dutkiewicz
230      and Patrick Heimbach.
231    - Two ifdef statements for compile time,
232       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
233    
234    checkpoint47
235    differentiable version of checkpoint46n_post
236    o bug fix in quasihydrostaticterms
237    o * "clean" adjoint code (in terms of extensive recomputations)
238        can now be obtained for all GMREDI options (i.e. for
239        - GM_VISBECK_VARIABLE_K
240        - GM_NON_UNITY_DIAGONAL
241        - GM_EXTRA_DIAGONAL
242        - GM_BOLUS_ADVEC )
243      * However, wrong gradient check problem remains unsolved.
244      * New CPP options have been introduced for different
245        tapering schemes
246    o external_fields_load now part of differentiation list
247    o pressure needs multiple storing;
248      would be nice to have store_pressure at beginning or
249      end of forward_step, e.g. by having phiHyd global (5-dim.)
250      (NB: pressure is needed for certain cases in find_rho,
251      which is also invoked through convective_adjustment).
252    o recomputations in find_rho for cases
253     'JMD95'/'UNESCO' or 'MDJWF' are OK.
254    o #define ATMOSPHERIC_LOADING should be differentiable
255    o ini_forcing shifted to begining of initialise_varia
256    o Incorporating QNVS line search routines into MITgcm
257      (this is separate code, and therefore not under pkg)
258      lsopt/, optim/
259    o Updated verification/carbon/
260      - #define GM_VISBECK_VARIABLE_K
261      - GM_taper_scheme    = 'ldd97'    
262    
263    checkpoint46n_post
264    Merging from release1_p8:
265    o verification/natl_box:
266      updating new external_fields_load routine
267    o New package: pkg/seaice
268      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
269      The sea-ice code is based on Hibler (1979-1980).
270      Two sea-ice dynamic solvers, ADI and LSR, are included.
271      In addition to computing prognostic sea-ice variables and diagnosing
272      the forcing/external data fields that drive the ocean model,
273      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
274      The implied surface heat flux is then stored in variable
275      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
276      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
277      non-local transport term.  Because this call precedes model
278      thermodynamics, temperature under sea-ice may not be "exactly" at
279      the freezing point by the time theta is dumped or time-averaged.
280      N.B.: fairly large differences in accuracy occur across
281            different platforms/compilers; comparison between
282            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
283            generated output gives:
284       T           S           U           V
285      C D M    c        m  s        m  s        m  s        m  s
286      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
287      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
288      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
289    
290      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
291    o GAD:
292      - generated new common blocks to account for call of
293        same gad routines with differing traceridentities
294        (needed to modify tracerIdentity indices in GAD.h)
295      - generated separate common blocks for case useCubedSphereExchange
296        (Department of Futurology)
297      - parameter lists to gmredi_?transport: added tracerIdentity
298      - added new key indices to tamc.h
299    o external_fields_load:
300      - added this routine to TAF list
301      - needed to make some common blocks global and additional storing
302        along the same lines as exf package (checkpoint_lev?_directives.h)
303    o exf:
304      updated external forcing package
305      - bug fixes carried over from ecco-branch
306        (missing OBCS_OPTIONS.h in two routines)
307      - enable easy to use "no forcing".
308      - added exf I/O for atmospheric loading
309      - added exf I/O for runoff data
310      - transfered scaling between exf <-> MITgcm to exf namelist
311    o Adding new verification experiment global_with_exf.
312      This verification experiment is almost identical to the
313      global_ocean.90x40x15 experiment, except that it uses
314      the exf (and cal) package instead of the
315      external_fields_load routine (cf README file).
316    
317    checkpoint46m_post
318    o modified testscript to return -- when there are no lines of "%MON" output
319    o added new flag "quasiHydrostatic" for QH mode
320      and new routine quasihydrostaticterms()
321    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
322      New routine: mom_u_coriolis_nh()
323    o fixed sign of non-hydrostatic metric terms in u and v equations.
324      Depend on correct sign of gravitySign.
325    o added work.pc* to .cvsignore in aim directories using ifc
326    o introduced flag for controllin non-hydrostatic metric terms
327    o removed gravitySign from PARM04
328    o switched to g77/ifc from pgf77 in aim experiments
329    
330    checkpoint46l_post
331    o made convective adjustment work with pressure coordinates:
332     - changed the direction of k-loop in convective_adjustment.F for the
333       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
334     - adjusted the reference pressure k-index in convective_adjustment.F
335     - adjusted the convection condition in convect.F (in analogy to
336       calc_ivdc.F)
337     - convective_adjustment no longer computes anything on the halos
338     - removed the warnings about negative salinity from find_rho.F and
339       find_alpha.F; instead the new routine look_for_neg_salinity, called
340       at the beginning of find_rho, find_alpha, and find_beta, does a
341       check of the entire slice, if CPP-option
342       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
343    checkpoint46l_pre
344    
345    checkpoint46k_post
346    o fixed the verification/global_ocean.90x40x15 experiment:
347     - new bathymetry (the world according to A., JMC, and M.)
348     - new initial fields and forcing fields (*.bin files)
349     - new POLY3.COEFFS (for the next release one should switch to a full
350       equation of state: JMD95P or MDJWF)
351     - fixed several errors and redundancies in the data file
352     - experiment uses looped cells
353     - added matlab directory with diagnostic scripts for plotting of output
354    
355    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
356     - read AIM physics parameters from a file (data.aimphys)
357     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
358    
359    checkpoint46j_post
360    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
361    o move wVel computation at the end of the time step, in S/R integr_continuity
362    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
363    o update timeave pkg for wVel diagnostic.
364    checkpoint46j_pre
365    
366    checkpoint46i_post
367    o Clean up AIM package (and keep the results unchanged):
368      include CPP_OPTION and use IMPLICT NONE in all routines ;
369      declare all the variables _RL ; use _d 0 for all numerical constants.
370      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
371    
372    checkpoint46h_post
373    o cleaned up the use of rhoNil and rhoConst.
374      - rhoNil should only appear in the LINEAR equation of state, everywhere
375        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
376        and the dynamical equations are all divided by rhoConst
377    o introduced new parameter rhoConstFresh, a reference density of fresh
378      water, to remove the fresh water flux's dependence on rhoNil. The default
379      value is 999.8 kg/m^3
380    o cleanup up external_forcing.F and external_forcing_surf.F
381      - can now be used by both OCEANIC and OCEANICP
382    checkpoint46h_pre
383    
384     Added code to convert surface volume flux (fresh water) into
385     a mass flux when using P coordinates in the ocean (OCEANICP).
386     Note: It assumes you have set rho0=rhoConst=density of fresh water.
387    
388    checkpoint46g_post
389    o Include a new diagnostic variable phiHydLow for the ocean model
390      - in z-coordinates, it is the bottom pressure anomaly
391      - in p-coordinates, it is the sea surface elevation
392      - in both cases, these variable have global drift, reflecting the mass
393        drift in z-coordinates and the volume drift in p-coordinates
394      - included time averaging for phiHydLow, be aware of the drift!
395    o depth-dependent computation of Bo_surf for pressure coordinates
396      in the ocean (buoyancyRelation='OCEANICP')
397      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
398        Theta, Salinity, and Pressure in the parameter list. This routine is
399        presently contained in find_rho.F. This routine does not give the
400        correct density for 'POLY3', which would be a z-dependent reference
401        density.
402    o cleaned up find_rho
403      - removed obsolete 'eqn' from the parameter list.
404    o added two new verification experiments: gop and goz
405      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
406    checkpoint46g_pre
407    
408    checkpoint46f_post
409    o Enable tangent linear (forward mode) gradient checks:
410      - extended active file handling to g_... files
411      - added TANGENT_SIMULATION to theSimulationMode
412      - extended grdchk package accordingly
413    o added tangent linear setup in verification/carbon/code_ftl
414    o added adjoint setup in verification/front_relax/code_ad
415    
416    checkpoint46e_post
417    o Added new equation of state -> MDJWF
418      - EOS of McDougall et al., 2002, JAOT, submitted
419      - caveat: the equation of state is only valid for a smaller (more
420        realistic?) range of values than JMD95P/Z and UNESCO
421      - added masks to the calculation of pressure in store_pressure
422      - added more check values for density in check_eos (ini_eos.F), some of
423        the old check values are out of the range of the MDJWF-eos, so don't
424        expect perfect matches for those
425    checkpoint46e_pre
426    
427    checkpoint46d_post
428    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
429      'OCEANICP', also initialised field pressure correctly in ini_eos in the
430      case of pressure coordinates. eosType='JMD95Z' in
431      combination with buoyancyRelation='OCEANICP' now causes an error.
432    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
433      in find_alpha/beta.
434    checkpoint46d_pre
435    
436    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
437      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
438    
439    checkpoint46c_post
440    o Changes necessary for ocean in p-coordinates
441     -  Added new buoyancy relation = 'OCEANICP'
442     -  Added new parameters = gravitySign (this used to be contained inside
443        the factor dRdZ which I added when we first switched to R coordinates).
444     X GM/Redi is not compatible (yet)
445     X bottom drag and no-slip need to be debugged.
446    checkpoint46c_pre
447    
448    checkpoint46b_post
449    o Added new equation of state -> JMD95Z and JMD95P
450      - EOS of Jackett and McDougall, 1995, JAOT
451      - moved all EOS parameters into EOS.h
452      - new routines ini_eos.F, store_pressure.F
453    o Added UNESCO EOS, but not recommended because it requires
454      in-situ temperature (see JMD95)
455    o Modified formatting for knudsen2.f in utils/knudsen2 and added
456      unesco.f to be used with POLY3
457    checkpoint46b_pre
458    
459    checkpoint46a_post
460    o Added (atmospheric) pressure loading
461      - new field in FFIELDS.h, etc...
462      - new cpp flag ATMOSPHERIC_LOADING
463    o Changed hFacC to _hFacC in calc_phi_hyd.F
464    o Added SHORTWAVE_HEATING to some files for consistency
465    checkpoint46a_pre
466    
467    checkpoint46
468    further merges from release1_p5
469    o new ctrl package
470      - adopted from ECCO environment to enable optimization
471      - added Eliassen Palm fluxes to controls
472    o added Eliassen Palm flux controls to gradient check package
473    o cost package
474      - Compatible with new ctrl package
475      - added Eliassen Palm cost hooks
476      - modif's of existing cost functions
477    o Adjoint-related bug fixes in kpp:
478      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
479      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
480    o autodiff package
481      - flow directives:
482        + new for S/R do_the_model_io
483        + enhanced for S/R checkpoint
484        + new gmredi.flow
485      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
486        disable adcommon.h/g_common.h by default.
487      - fixed problem for adjoint of global_max
488    o modified verification/carbon/
489    o New setup for adjoint of global_ocean
490    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
491    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
492    o incorporated hooks for sponge layer code (external_forcing.F)
493    
494    checkpoint45d_post
495    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
496    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
497      (affects plume_on_slope "cg2d" output)
498    o add new parameter deltaTfreesurf for free-surface time stepping
499    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
500    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
501    o change phiMin in exp1 (to agree with documentation)
502    o add new flags:
503     - T,S forcing inside/outside Adams-Bashforth
504     - turn off temp,salt advection and/or forcing
505     - for each tracer, define internal flag for multiDimAdvection & A-B
506    o monitor: change definition of KE to check conservation of Energy
507    
508    checkpoint45c_post
509    o Removed f90 comments ("!")
510    o Modified initialisations to enable exf package for MITgcm
511      (without invoking ECCO_PACKAGE).
512    o modifications to gradient check package (Martin Losch)
513      - enable centered differences
514      - modified format of standard output
515    
516    checkpoint45b_post
517    o cleaned exchange calls in cg2d
518    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
519    o included CPP option SINGLE_LAYER_MODE in thermodynamics
520      to configure barotropic setup (Martin Losch)
521    o moved some initialisations within bi,bj loop in dynamics
522      (TAF flow dependency)
523    o in initialise_varia, moved call packages_init_variables
524      before convective_adjustment_init
525      (corresponding adjustment of TAF tape initialisation).
526    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
527    
528    checkpoint45a_post
529    o compute Rho over the whole domain (extend iMin,jMin indices)
530    o specific exchange for X-slice domain (case Ny=1)
531    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
532    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
533    
534    checkpoint44h_post = checkpoint45
535    o Fix to restore differentiability:
536      place at which packages_init_variables is called in
537      initialise_varia is crucial for reverse control flow.
538    o modifications in GMRedi to enable stable adjoint
539      (corresponding modif's in thermodynamics, dynamics)
540    o added missing hook for sponge layer code in external_forcing
541    o modified test cost functions
542    o storing in gad_advection (plus removal of write(0,*)!
543    o missing headers TR1.h added in convective_adjustment routines
544    o errorMessageUnit set non-equal zero in eeboot
545      (conflict on some platforms, e.g. IBM SP3)
546    o modified carbon verif.
547    
548    checkpoint44h_pre
549    o vertical grid option: allow to put the Interface at the middle between
550      2 cell-centers ; replace delZ in pkg/kpp by drF.
551    o GM Advective form: Tracers are advected using the residual transport (=
552      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
553    
554    checkpoint44g_post
555    o fix surface correction term in multiDimAdvection (affects plume_on_slope
556      results) ; ifdef missing in thermodynamics.F
557    
558    checkpoint44f_pre,checkpoint44f_post
559    o added PTRACERS package
560      This allows an arbitrary number of passive tracers to be integrated
561      forward simultaneously with the dynamicaly model.
562      + Implemented so far:
563        - basic forward algorithm (time-stepping, advection, diffusion, convection)
564        - I/O and checkpointing
565        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
566      + Not implemented so far:
567        - KPP
568        - OBCS
569      + No specific example supplied (yet) but global_ocean.90x40x15 has the
570        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
571        line in data.pkg.
572      + This package is disabled by default since it increases storage.
573    
574    
575    o testscript: added -cleanup option
576    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
577                 b) enable to filter 2D fields.
578    
579    checkpoint44e_pre,post
580    o re-wrote convective adjustment to use pre-calculated weights
581      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
582      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
583      Original calls to convect() still in place.
584    
585    chkpt44d_pre,post
586    o added missing EXCLUDE_MONITOR flags
587    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
588      (incompatible typ in MIN/MAX expressions caused problems
589      on IBM SP3)
590    o in genmake added variable MAKEDEPEND
591      plus resetting for case SunOS
592    o added timer_stats.c routine for IBM SP3
593    o removed variables in dynamics
594    !!! I forgot to create tag chkpt44d_pre !!!
595    !!! But chkpt44d_pre = chkpt44c_post    !!!
596    
597    o real fresh water flux implemented with non-linear free-surface.
598    
599    chkpt44c_pre,post
600    o few fix (mask in shap_s2, EmPmR in external_field_load,
601      USE_NATURAL_BCS in solve_for_P);
602    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
603    
604    checkpoint44b_pre/_post
605    o merge of relevant stuff from the ecco-branch:
606      - genmake: removed $S64 overwrite for case SunOS
607      - pkg/exf: update and corrections for field swapping and obcs
608      - pkg/ecco: parameter lists for the_model_main, the_main_loop
609                  harmonized between ECCO and MITgcm
610      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
611                      updated checkpointing_lev... lists for obcs
612      - model/src: minor changes in forward_step, plot_field
613                   added directive for divided adjoint in the_main_loop
614      - pkg/mdsio: added mdsio_gl_slice
615    
616    o check parameters & config (chkpt44a_pre,post)
617    o OBC and NonLin_FrSurf.
618    
619    checkpoint44
620    o fix bug in mom_vi_del2uv
621    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
622    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
623    o update AIM experiments (NCEP input files)
624    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
625    o added some stuff for AD
626    
627    checkpoint43
628    o added two new advection tests
629    o added global 4x4 degree ocean test
630    o added test of H&S94 with free surface on cube
631    o some final mods for gradient check, adjoint,...
632    
633    checkpoint42
634      Fixed AD-related problems:
635    o Store directives up-to-date with re-arranged Adams-Bashforth
636      (mainly thermodynamics.F)
637    o New store directives for multi-dim. advection schemes
638      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
639      * new common block and key passkey
640      (mainly gad_advection.F)
641    o Modified store directives for split of dynamics/thermodynamics
642      for the case ALLOW_KPP
643    o Cleaned argument list for timestep_tracer.F
644    
645    checkpoint41
646    o re-formatted/added comments in prologues of key subroutines
647      to work with protex
648    
649    checkpoint40
650    o moved calc_gs, calc_gt and calc_tr1 back to model/src
651    o added FLT (floats) package from Arne along with demo. experiment
652    o re-arranged Adams-Bashforth scheme for tracers to allow easier
653      implementation of forward-in-time forcing terms
654    o more mods for non-linear free-surface including new variable
655    o modified multi-dim method to work on cube
656    o bug fix in KPP (from DM)
657    
658    checkpoint40pre9
659    o added DST advection schemes
660    o fix MPI bug on SGI's
661    o modifications for non-linear free-surface
662    o fixed conditionals for fixed flow/passive tracer only mode
663    o added tension/strain form of stress tensor
664    o changes to commenting of arguments for TAF/TAMC
665    o added/updated many matlab scripts
666    o added multi-dimensional advection method for tracers
667      
668    checkpoint40pre8
669    o new package rw/
670      Added method for dumping intermediate local arrays:
671      mdsio_writetile - same as mdsio_writefield except works from inside
672                        bi,bj loop
673      mdsio_writelocal - same as mdsio_writetile except works for local
674                         arrays
675      write_local_r? - higher-level wrapper for mdsio_writelocal
676      Controlled by diagFreq. Defaults to zero (ie. no dumps)
677      Example given at end of mom_vecinv.F that dumps some local arrays.
678    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
679      control flux-form versus vector invariant code.
680      Switch is runtime flag vectorInvariantMomentum (defaults to false)
681      or genmake -DISABLE ...
682    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
683      (additional storing is now needed for case vecinv;
684      currently nothing implemented to switch this storing off
685      in case fluxform is used since no CPP flag available).
686    
687    checkpoint40pre7
688    o bug fix in dynamics.F
689      calc_viscosity called before k=1,Nr loop.
690    o added some #ifdef's ALLOW_PASSIVE_TRACER
691    o cleaned initialisations in ctrl_map_ini
692      related to TAF
693    
694    checkpoint40pre6
695    o split dynamics into thermodynamics & dynamics
696    o corresponding split of calc_diffusivity into
697      calc_diffusivity, calc_viscosity
698      (kpp_calc_diff, kpp_calc_visc).
699    o Added diffkr, kapgm to control variables
700    o bug fix in gmredi_slope_limit for ldd97
701    
702    checkpoint40pre5
703    o proper initialization of Adams-Bashforth time stepping
704      + uses forward step for very first step of model (iter=0)
705    o re-generated *all* output since almost all output is modified by this
706      change (sorry but we've been putting this one off for about 2 years)
707      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
708        *not* regenerated since they are already out of date and I don't
709        want to create the impression that they are suddenly working.
710    o removed KAP stuff for DEC's
711    o modified/added many .cvsignore files in */code and */input
712    o added new expt "solid-body.cs-32x32x1"
713      + this uses an alternative form of ini_curvilinear_grid.F which
714        is not necessarily any better than the current one...
715    
716    checkpoint40pre4
717    o added re-initialisations of utrans,vtrans,rtrans in
718      calc_common_factors which are crucial for TAF.
719    o extended iMin,jMin range for calc_common_factors,
720      calc_diffusivity
721    o added option ALLOW_PASSIVE_TRACER
722    o a few minor updates and fixes
723    
724    checkpoint40pre3
725    o created calc_gtr1.F for gad package
726    o split the_main_loop and re-introduced forward_step
727    o some recomputations of nIter0 for TAMC
728    
729    checkpoint40pre2
730    o Updated to latest branch of AJA, JMC
731    o Added gradient check package
732    o Added routines for passive tracer handling
733    o Added carbon sequestration sensitivity experiment
734    
735    checkpoint39
736     o Modifications and fixes to support TAMC
737       (mainly missing or wrong directives)
738     o Corrected common blocks when fooling TAMC to produce adjoint I/O
739       in addummy_in_stepping
740     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
741     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
742     o Included following packages:
743       cal: calendar
744       exf: external forcing
745       ecco: essential routines to control use of cal, exf
746             (NB: this is not the full ECCO environment)
747     o disabled some packages by default in genmake
748    
749    checkpoint38
750     o see notes_c37_adj.txt
751     o corrected wrong layer index in external_forcing_t
752     o replaced the_main_loop/forward_step by the_main_loop
753     o removed forceoutput from write_state
754       (replaced criteria for initial/final state)
755     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
756    
757    checkpoint37
758     o mdsio.F routine split and packaged in pkg/mdsio
759       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
760        used unless genmake -disable=mdsio)
761     o allow a more precise surface-geopotential gradient for the atmosphere
762       taking into account the change in space of Alpha (=1/rho) at the surface.
763     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
764       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
765     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
766       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
767       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
768     o Time-Average diagnostics defined as a pseudo package "timeave".
769     o pickup files : old pickup (before c35) did not work with new code (c35
770       and after) unless activating 2 commented lines in initialise-varia.
771     o Non-Hydrostatic pickup file Pb fixed.
772     o bug with Rigid-lid version (since c35) fixed.  
773    
774    checkpoint36
775     o implement Crank-Nickelson barotropic time-stepping
776     o recover Time-Average diagnostics
777     o fix Pb in checkpoint (PR#19)
778     o AIM become a standard package ; clean unused CPP_kees
779    
780    checkpoint35
781     o subtantial rewrite of dynamics.f
782     o allows staggered time-stepping
783     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
784     o added bottom drag (linear + quadratic)
785    
786    checkpoint34
787     o Modified exchange routines for correct reverse simulation.
788     o Added verification output to comply with bug fix in impldiff.F
789       as of c33 (exp2, natl_box).
790     o Corrected store directives in dynamics.F
791     o Corrected array boundaries in impldiff.F
792     o Corrected array dimensions in gmredi.
793       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
794     o Added routine GLOBAL_SUM_INT to global_sum.F
795     o Added mdsio_gl.F for ECCO purposes.
796    
797    checkpoint33
798     o Fixed bug in lower BC in impldiff.F
799     o Fixed confusion about units of forcing arrays in FFIELDS.h
800       namely Fu,Fv,Qnet,Qsw,EmPmR:
801       - Removed verification/natl_box/code/external_fields_scale.F
802         (did not differ from that in model/src)
803       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
804         (see FFIELDS.h for description)
805       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
806         kpp_calc.F and kpp_transport_t.F
807       - Removed model/src/external_fields_scale.F and calls to it
808       - verification/natl_box uses flux data with "atmospheric" sign so
809         a special version of external_fields_load.F is used to
810         change the data as it's read in. This way, the arrays
811         have the right units and signs at all times tha a user could
812         possibly use them.
813     o Corrected genmake to delete a temporary file during configuration
814    
815    checkpoint32
816     o Scaling of forcing fields moved from external_forcing.F to
817       external_fields_scale.F, called directly after loading fields.
818     o Surface relaxation terms added to surface tendency fields in
819       extra subroutine.
820     o impldiff.F changed to avoid storing by TAMC of huge intermediate
821       fields.
822     o Changes in GMRedi to comply with packaging structure.
823     o Modifications and bug fixes in KPP package.
824     o Verification experiment for KPP added (verification/nat_box/)
825    
826    checkpoint31
827     o Packages interface brought in line with defined standard
828       -> new routines packages_...F
829       -> changes in initialise_fixed.F, initialise_varia.F
830       -> enables initialisation interface for ECCO package
831     o Rescaling of external forcing fields immediately after read
832       (removed from external_forcing.F)
833       -> new: surface_fields_scale.F
834       -> affects ini_foorcing.F, external_fields_load.F
835     o Computation of surface tendencies before tendency updates.
836       -> new: external_forcing_surf.F
837     o Change of variable names useGMRedi, useKPP, useECCO
838     o Further changes in dynamics.F, impldiff.F for TAMC
839     o Tested for experiments 0, 2, 4.
840       - not yet tested for GMRedi.
841       - not yet tested for KPP.
842    
843    checkpoint30
844     o Updates for OBCs
845     o New experiment for test OBCs (internal_wave)
846     o New output.txt in verification/exp4/results/
847     o Updates for KPP: calculation of viscosity corrected, new variables
848       kpp_dumpFreq and kpp_taveFreq
849     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
850       and entry for T90 in genmake
851    
852    checkpoint29
853     o packaged KPP and GM/Redi
854    
855    checkpoint28
856     o Corrected initialization of hFacMin for difference vertical coordinates
857     o Modified calculation of partial cell thickness to more robust algorithm
858     o config_summary.F: replaced write_1D_... by write_0D_...
859       read_write.F: added subroutines write_0D_...
860     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
861       included some initialisations required for TAMC.
862     o routine calc_isoslopes: modified sqrt computation to make it
863       differentiable for zero argument.
864     o routines dynamics, impldiff:
865       included store directives and tape key computations required for TAMC.
866     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
867    
868    checkpoint27
869     o fixed calc_isoslopes() to so that cancellation of terms in tensor
870       formulation works properly with variable resolution.
871     o restructured the calling tree between the_model_main() and dynamics()
872     o split initialise() into initialise_fixed() and initialise_varia()
873     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
874       in new routine ini_psurf()
875    
876    checkpoint26
877     o moved some #ifdef in optional routines to encompass everything
878       except the argument declarations. This was using up some memory.
879     o fixed macros like _ADT to work with both versions of Linux cpp
880     o cleaned up some unused and uninitialized variables
881       (helps when debugging with strict compile options)
882     o split up CPP_EEOPTIONS.h into options and macros
883       (macros are now in eesupp/inc/CPP_EEMACROS.h)
884     o patch for 2 processor JAM mode
885    
886    checkpoint25
887     o updates for OBCs and NH
888     o dramatically reduced memory usage
889     o added "JAM" routines for use on Artic network
890     o parameterization of convection by implicit vertical diffusion
891     o added a diagnostic of convective index
892     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
893       (this is was partly for OBCs and NH but also in anticipation of
894        an explicit free-surface option)
895     o initial state input files for U and V
896    
897    checkpoint24
898     o Removed some spurious "REAL"s
899     o Updated KPP to latest version from JPL
900     o Added a COS(latitude) in horizontal viscosity
901    
902    checkpoint23
903     o Added del^4 diffusion for salt and temperature
904     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
905    
906    checkpoint22
907     o Made many small changes: implicit none, format(i5), etc...
908     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
909    
910    checkpoint21
911     o Introduced new I/O package that supports direct-access records (mdsio.F)
912     o Split-up mid-level I/O routines
913     o Updated input data for experiments 0,1,2,4 and 5
914     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
915    
916    checkpoint20
917     o Tidied up open-boundaries some more
918     o Added non-hydrostatic code
919     o Fixed some input data
920     o Modified MPI start-up to work in "coupled" context.
921    
922    checkpoint19
923     o Tidied up directory structure for verification experiments.
924     o Added new code for open boundaries.
925     o Corrected advective terms near boundaries.
926     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
927     o Implemented free-slip/no-slip BCs and del^4 dissipation.
928     o Split default parameters out of ini_parms.F into set_defaults.F.
929    
930    checkpoint18
931     o Further changes for optional code generation with
932       CPP - ugh!
933    
934    checkpoint17
935     o Beginning to incorporating modularity
936       for supporting atmos. and ocean configs.
937     o Small changes for TAMC complinace
938     o New ultra simple test case. Barotropic box
939       configuration "exp0".
940    
941    checkpoint16
942     o Minor changes to exchange routines to support
943       accumulation in reverse mode. Adjoint of an
944       assignment is an addition.
945     o Changes to support compilation by TAMC (LR(1)
946       syntax) and by g77 under Linux ( 72 character
947       limit ).
948    
949    checkpoint15
950     Rewrote exchange routines to allow
951     o General tile <-> tile connectivity.
952     o TAMC reverse mode flag ( is this really needed? )
953     o Variable width overlap and exchange region widths.
954     o Hooks for sharing data via DMA, Arctic, Memory Channel,
955       shmput/shmget, VIA, SYSV shmem and every other cool
956       communication method.
957    
958    checkpoint14
959     Consistent isomorphism chages made. These allow dynamical core
960     to support both pressure and meters as a vertical coordinate.
961    
962    checkpoint13
963     Release which corrects global_max problem and a couple
964     of KGM time-averaging diagnostic errors. Also contains
965     a double-gyre experiment setup as well as the baseline
966     4 degree global template. The double gyre template is
967     organised to allow it to be applied automatically to
968     the baseline configuration.
969    
970    branch-point-rdot
971     A few tidy-ups have been made bt the real point of this
972     check-point (excuse the pun) is to allow a branch to be
973     made for the purposes of adding the rDot alterations.
974     I don't want to commit the rDot to the main-trunk until
975     we've actually tested it...
976    
977    checkpoint12
978     Tidy up and added generic genmake script (formerly
979     configure script).
980     Released to testers.
981    
982    checkpoint11
983     Re-arranged initialise() and introduced ini_vertical_grid()
984     and ini_masks_etc().
985    
986    checkpoint10
987     Introduced the configure script.
988     Separated out the diags package.
989     Added template for writing time-averages of tile/intermediate quantities.
990     Updated SIZE.h in exp2 and made the data big-endian.
991    
992    checkpoint9
993     MPI fix. Filename changes (meta/data). salbin*y stuff.
994     General tidy-up.
995     SST.bin SSS.bin added to verification/exp2
996    
997    checkpoint8
998     Inludes time-dependant forcing and time-averaging.
999     Works at 4x4 and 2.8125x2.8125 global
1000    
1001    checkpoint7-4degree-ref
1002     Branch from checkpoint7. Released for application to
1003     global modeling and general modeling - process studies, regional
1004     model etc..
1005     Configured for verification/exp2 - 4 degree global, two process.
1006    
1007  checkpoint7  checkpoint7
1008   Created by cnh   Created by cnh
1009   Simple 4 degree global simulation   Simple 4 degree global simulation

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