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revision 1.12 by cnh, Fri Jul 17 02:25:15 1998 UTC revision 1.136 by dimitri, Tue Feb 25 06:35:46 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 Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
8    o Added SEAICE_initialHEFF to pkg/seaice
9    
10    checkpoint48g_post
11    --- EOS:
12    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
13      store total Potential in totPhyHyd for diagnostics & EOS.
14    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
15    --- Pressure/geopotential gradient:
16    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
17    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
18      ( changes results of global_ocean_pressure )
19    o NLFS + z-coord.: add eta*Rho' contribution.
20    o accurate phiHyd when using interface-W at the middle between 2 centers
21     ( changes results of ideal_2D_oce )
22    o includes r* 2nd term in potential gradient.
23    
24    checkpoint48f_post
25    Merging from release1_p12:
26    o Modifications for using pkg/exf with pkg/seaice
27      - improved description of the various forcing configurations
28      - added basic radiation bulk formulae to pkg/exf
29      - units/sign fix for evap computation in exf_getffields.F
30      - updated verification/global_with_exf/results/output.txt
31    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
32      (SBO) core products, including oceanic mass, center-of-mass,
33      angular, and bottom pressure (see pkg/sbo/README.sbo).
34    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
35      to avoid negative values in shallow regions.
36      - updated verification/natl_box/results/output.txt
37      - updated verification/lab_sea/results/output.txt
38    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
39    o Added useSingleCpuIO option (see PARAMS.h).
40    o Updated useSingleCpuIO option in mdsio_writefield.F to
41      work with multi-field files, e.g., for single-file pickup.
42    o pkg/seaice:
43      - bug fix in growth.F: QNET for no shortwave case
44      - added HeffFile for specifying initial sea-ice thickness
45      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
46    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
47      kpp_transport_t.F, forward_step.F, and the_main_loop.F
48    o pkg/seaice:
49      - adjoint-friendly modifications
50      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
51    
52    checkpoint48e_post
53    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
54    o dynamics: change definition of computational domain & adapt mom_fluxform
55      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
56    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
57        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
58        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
59        global_ocean.90x40x15 global_with_exf global_ocean_pressure
60        inverted_barometer solid-body.cs-32x32x1
61      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
62    
63    checkpoint48d_post
64    o in preparation for r*:
65     a) use pre-computed gradient of hydrostatic potential:
66        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
67     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
68        => affects results of glob_oce_pressure (different truncation error)  
69      update output.txt of ideal_2D_oce & global_ocean_pressure
70    
71    checkpoint48d_pre
72    o in preparation for r*:
73      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
74      pass the 2 comp. of the grad. as arguments to momentum S/R.
75      but for the moment, only used if it does not change the results.
76    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
77    
78    checkpoint48c_post
79    Modifications in treatment of initial flux forcing controls
80    to avoid extra storing of flux fields.
81    
82    checkpoint48c_pre
83    o Added tidal_basin_2d experiment (currently 1D!)
84    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
85    
86    checkpoint48b_post
87    o r* coordinate added in #ifdef NONLIN_FRSURF block.
88     (modification to pressure gradient not yet implemented)
89    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
90      (for U & V) that are used for vertical advection of momentum.
91    
92    checkpoint48a_post
93    o In preparation for r*, use temp. array to compute vertical transport
94       in flux-form momentum pkg. => change results of few test-exp.
95      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
96                        lab_sea, natl_box & plume_on_slope
97    
98    checkpoint48
99    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
100    
101    checkpoint47j_post
102    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
103    o moved adexch from forward_step to addummy_in_stepping
104    o added exch in ctrl_map_...
105    o aveFreq.=0. at end of cost_final to avoid overwrite in
106      reverse checkpointing loop
107    o Yet more changes in gmredi:
108      * adgmredi_calc_tensor
109        avoiding all recomputation of gmredi_slope_limit
110      * adgmredi_x/y/rtransport
111        added flag for excessive storing to avoid recomp. of
112        u/v/rtans, dTdx/y/z
113        -> this is not really necessary and very memory-consuming
114      * adgmredi_slope_psi:
115        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
116      * gmredi_slope_limit
117        re-activated full calculation of taperfct for case 'ac02'
118    o updating verification/ adjoints of carbon, global_ocean.90x40x15
119    
120    checkpoint47i_post
121    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
122    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
123      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
124    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
125    o gmredi: fix few bugs.
126    
127    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
128    This will be a good checkpoint to plug into the ecco-branch.
129    o few modif.'s to get latest version adjointed
130      (mainly kick out code in ini_linear_phisurf)
131    o modif's to run adjoint with exactConserv
132    o case GM_BOLUS_ADVEC should be cleaned
133      S/R gmredi_slope_psi should be cleaned
134    o verification/carbon now has exactConserv=.TRUE.
135    
136    checkpoint47g_post
137    o time-average AIM output: becomes independent from statvars time-average
138      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
139    o After TAF bug fix:
140      Tested adjoint of gmredi package.
141      Tests were done with checkpoint47 rather than with latest
142      checkpoint47f_post since the latter is broken for the adjoint
143      verification/carbon/ contains both ADM and TLM gradient checks.
144    Here they are, before they get changed/lost/stolen.
145    Mostly modif.'s to fix numerical sensitivities.
146    Gradient checks OK for
147    - GM_taper_scheme:
148      * clipping
149      * ac02
150      * linear
151      * glw91
152      * dm95
153      * ldd97
154    - GMREDI_OPTIONS:
155      * GM_VISBECK_VARIABLE_K
156      * GM_NON_UNITY_DIAGONAL
157      * GM_EXTRA_DIAGONAL
158      * GM_BOLUS_ADVEC
159    in conjunction with data.gmredi parameters to be checked in
160    in a few minutes under verification/carbon/code/
161    
162    checkpoint47f_post
163    Merging from release1_p10:
164    o modifications for using pkg/exf with pkg/seaice
165      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
166        and SEAICE_EXTERNAL_FLUXES
167      - pkg/exf CPP options EXF_READ_EVAP and
168        EXF_NO_BULK_COMPUTATIONS
169      - usage examples are Experiments 8 and 9 in
170        verification/lab_sea/README
171      - verification/lab_sea default experiment now uses
172        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
173    
174    checkpoint47e_post
175    o created a tag prior to creating a branch
176    
177    checkpoint47d_post
178    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
179      at the bottom boundary had an erroneous half slip boundary condition
180    o added bottom drag and no slip boundary condition capabilities to
181      oceanic pressure coordinates code
182    o added new verification experiment global_ocean_pressure, this experiment is
183      also described in the tutorial section of the manual
184    checkpoint47d_pre
185    
186    checkpoint47c_post
187    o Added a verification experiment for a global cubed-sphere ocean run
188      -  verification/global_ocean.cubed32x32x30
189      -  uses pkg/therm_seaice and pkg/bulk_forcing
190    
191    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
192    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
193      when using P-coordinate; only implemented for atmospheric config.
194    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
195      NOTES: requires option NONLIN_FRSURF to be "#define".
196    o update advect_xz/results/output.txt (left from checkpoint44g_post)
197    
198    checkpoint47b_post
199    Merging from release1_p9:
200    o pkg/seaice
201      - removed GOTO's and added taf directives
202      - double precision constants to reduce the g77 (Linux)
203        to F77 (SGI) differences reported in release1_p8
204    o tools/genmake
205      - added SGI options
206    o verification/testscript
207      - updated to that of checkpoint47a_post
208    o verification/global_ocean.90x40x15/input/eedata
209      - modified for SGI f77 compatibility
210    o verification/lab_sea
211      - added description of sea-ice model
212      - added missing matlab routines
213      - added test of thermodynamics parallelization
214    
215    checkpoint47a_post
216    o new pkg: aim_v23
217     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
218       for now, keep the same surface forcing as before.
219     - Part-Cell implemented into AIM; check that Heat & Water are conserved
220     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
221     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
222    o add diagnostic of surface correction term in monitor output
223    
224    o bulk_force and therm_seaice
225    - Two packages:  bulk_force (Bulk forcing)
226      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
227    - Earlier integration from Stephaine Dutkiewicz
228      and Patrick Heimbach.
229    - Two ifdef statements for compile time,
230       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
231    
232    checkpoint47
233    differentiable version of checkpoint46n_post
234    o bug fix in quasihydrostaticterms
235    o * "clean" adjoint code (in terms of extensive recomputations)
236        can now be obtained for all GMREDI options (i.e. for
237        - GM_VISBECK_VARIABLE_K
238        - GM_NON_UNITY_DIAGONAL
239        - GM_EXTRA_DIAGONAL
240        - GM_BOLUS_ADVEC )
241      * However, wrong gradient check problem remains unsolved.
242      * New CPP options have been introduced for different
243        tapering schemes
244    o external_fields_load now part of differentiation list
245    o pressure needs multiple storing;
246      would be nice to have store_pressure at beginning or
247      end of forward_step, e.g. by having phiHyd global (5-dim.)
248      (NB: pressure is needed for certain cases in find_rho,
249      which is also invoked through convective_adjustment).
250    o recomputations in find_rho for cases
251     'JMD95'/'UNESCO' or 'MDJWF' are OK.
252    o #define ATMOSPHERIC_LOADING should be differentiable
253    o ini_forcing shifted to begining of initialise_varia
254    o Incorporating QNVS line search routines into MITgcm
255      (this is separate code, and therefore not under pkg)
256      lsopt/, optim/
257    o Updated verification/carbon/
258      - #define GM_VISBECK_VARIABLE_K
259      - GM_taper_scheme    = 'ldd97'    
260    
261    checkpoint46n_post
262    Merging from release1_p8:
263    o verification/natl_box:
264      updating new external_fields_load routine
265    o New package: pkg/seaice
266      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
267      The sea-ice code is based on Hibler (1979-1980).
268      Two sea-ice dynamic solvers, ADI and LSR, are included.
269      In addition to computing prognostic sea-ice variables and diagnosing
270      the forcing/external data fields that drive the ocean model,
271      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
272      The implied surface heat flux is then stored in variable
273      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
274      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
275      non-local transport term.  Because this call precedes model
276      thermodynamics, temperature under sea-ice may not be "exactly" at
277      the freezing point by the time theta is dumped or time-averaged.
278      N.B.: fairly large differences in accuracy occur across
279            different platforms/compilers; comparison between
280            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
281            generated output gives:
282       T           S           U           V
283      C D M    c        m  s        m  s        m  s        m  s
284      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
285      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
286      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
287    
288      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
289    o GAD:
290      - generated new common blocks to account for call of
291        same gad routines with differing traceridentities
292        (needed to modify tracerIdentity indices in GAD.h)
293      - generated separate common blocks for case useCubedSphereExchange
294        (Department of Futurology)
295      - parameter lists to gmredi_?transport: added tracerIdentity
296      - added new key indices to tamc.h
297    o external_fields_load:
298      - added this routine to TAF list
299      - needed to make some common blocks global and additional storing
300        along the same lines as exf package (checkpoint_lev?_directives.h)
301    o exf:
302      updated external forcing package
303      - bug fixes carried over from ecco-branch
304        (missing OBCS_OPTIONS.h in two routines)
305      - enable easy to use "no forcing".
306      - added exf I/O for atmospheric loading
307      - added exf I/O for runoff data
308      - transfered scaling between exf <-> MITgcm to exf namelist
309    o Adding new verification experiment global_with_exf.
310      This verification experiment is almost identical to the
311      global_ocean.90x40x15 experiment, except that it uses
312      the exf (and cal) package instead of the
313      external_fields_load routine (cf README file).
314    
315    checkpoint46m_post
316    o modified testscript to return -- when there are no lines of "%MON" output
317    o added new flag "quasiHydrostatic" for QH mode
318      and new routine quasihydrostaticterms()
319    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
320      New routine: mom_u_coriolis_nh()
321    o fixed sign of non-hydrostatic metric terms in u and v equations.
322      Depend on correct sign of gravitySign.
323    o added work.pc* to .cvsignore in aim directories using ifc
324    o introduced flag for controllin non-hydrostatic metric terms
325    o removed gravitySign from PARM04
326    o switched to g77/ifc from pgf77 in aim experiments
327    
328    checkpoint46l_post
329    o made convective adjustment work with pressure coordinates:
330     - changed the direction of k-loop in convective_adjustment.F for the
331       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
332     - adjusted the reference pressure k-index in convective_adjustment.F
333     - adjusted the convection condition in convect.F (in analogy to
334       calc_ivdc.F)
335     - convective_adjustment no longer computes anything on the halos
336     - removed the warnings about negative salinity from find_rho.F and
337       find_alpha.F; instead the new routine look_for_neg_salinity, called
338       at the beginning of find_rho, find_alpha, and find_beta, does a
339       check of the entire slice, if CPP-option
340       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
341    checkpoint46l_pre
342    
343    checkpoint46k_post
344    o fixed the verification/global_ocean.90x40x15 experiment:
345     - new bathymetry (the world according to A., JMC, and M.)
346     - new initial fields and forcing fields (*.bin files)
347     - new POLY3.COEFFS (for the next release one should switch to a full
348       equation of state: JMD95P or MDJWF)
349     - fixed several errors and redundancies in the data file
350     - experiment uses looped cells
351     - added matlab directory with diagnostic scripts for plotting of output
352    
353    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
354     - read AIM physics parameters from a file (data.aimphys)
355     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
356    
357    checkpoint46j_post
358    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
359    o move wVel computation at the end of the time step, in S/R integr_continuity
360    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
361    o update timeave pkg for wVel diagnostic.
362    checkpoint46j_pre
363    
364    checkpoint46i_post
365    o Clean up AIM package (and keep the results unchanged):
366      include CPP_OPTION and use IMPLICT NONE in all routines ;
367      declare all the variables _RL ; use _d 0 for all numerical constants.
368      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
369    
370    checkpoint46h_post
371    o cleaned up the use of rhoNil and rhoConst.
372      - rhoNil should only appear in the LINEAR equation of state, everywhere
373        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
374        and the dynamical equations are all divided by rhoConst
375    o introduced new parameter rhoConstFresh, a reference density of fresh
376      water, to remove the fresh water flux's dependence on rhoNil. The default
377      value is 999.8 kg/m^3
378    o cleanup up external_forcing.F and external_forcing_surf.F
379      - can now be used by both OCEANIC and OCEANICP
380    checkpoint46h_pre
381    
382     Added code to convert surface volume flux (fresh water) into
383     a mass flux when using P coordinates in the ocean (OCEANICP).
384     Note: It assumes you have set rho0=rhoConst=density of fresh water.
385    
386    checkpoint46g_post
387    o Include a new diagnostic variable phiHydLow for the ocean model
388      - in z-coordinates, it is the bottom pressure anomaly
389      - in p-coordinates, it is the sea surface elevation
390      - in both cases, these variable have global drift, reflecting the mass
391        drift in z-coordinates and the volume drift in p-coordinates
392      - included time averaging for phiHydLow, be aware of the drift!
393    o depth-dependent computation of Bo_surf for pressure coordinates
394      in the ocean (buoyancyRelation='OCEANICP')
395      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
396        Theta, Salinity, and Pressure in the parameter list. This routine is
397        presently contained in find_rho.F. This routine does not give the
398        correct density for 'POLY3', which would be a z-dependent reference
399        density.
400    o cleaned up find_rho
401      - removed obsolete 'eqn' from the parameter list.
402    o added two new verification experiments: gop and goz
403      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
404    checkpoint46g_pre
405    
406    checkpoint46f_post
407    o Enable tangent linear (forward mode) gradient checks:
408      - extended active file handling to g_... files
409      - added TANGENT_SIMULATION to theSimulationMode
410      - extended grdchk package accordingly
411    o added tangent linear setup in verification/carbon/code_ftl
412    o added adjoint setup in verification/front_relax/code_ad
413    
414    checkpoint46e_post
415    o Added new equation of state -> MDJWF
416      - EOS of McDougall et al., 2002, JAOT, submitted
417      - caveat: the equation of state is only valid for a smaller (more
418        realistic?) range of values than JMD95P/Z and UNESCO
419      - added masks to the calculation of pressure in store_pressure
420      - added more check values for density in check_eos (ini_eos.F), some of
421        the old check values are out of the range of the MDJWF-eos, so don't
422        expect perfect matches for those
423    checkpoint46e_pre
424    
425    checkpoint46d_post
426    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
427      'OCEANICP', also initialised field pressure correctly in ini_eos in the
428      case of pressure coordinates. eosType='JMD95Z' in
429      combination with buoyancyRelation='OCEANICP' now causes an error.
430    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
431      in find_alpha/beta.
432    checkpoint46d_pre
433    
434    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
435      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
436    
437    checkpoint46c_post
438    o Changes necessary for ocean in p-coordinates
439     -  Added new buoyancy relation = 'OCEANICP'
440     -  Added new parameters = gravitySign (this used to be contained inside
441        the factor dRdZ which I added when we first switched to R coordinates).
442     X GM/Redi is not compatible (yet)
443     X bottom drag and no-slip need to be debugged.
444    checkpoint46c_pre
445    
446    checkpoint46b_post
447    o Added new equation of state -> JMD95Z and JMD95P
448      - EOS of Jackett and McDougall, 1995, JAOT
449      - moved all EOS parameters into EOS.h
450      - new routines ini_eos.F, store_pressure.F
451    o Added UNESCO EOS, but not recommended because it requires
452      in-situ temperature (see JMD95)
453    o Modified formatting for knudsen2.f in utils/knudsen2 and added
454      unesco.f to be used with POLY3
455    checkpoint46b_pre
456    
457    checkpoint46a_post
458    o Added (atmospheric) pressure loading
459      - new field in FFIELDS.h, etc...
460      - new cpp flag ATMOSPHERIC_LOADING
461    o Changed hFacC to _hFacC in calc_phi_hyd.F
462    o Added SHORTWAVE_HEATING to some files for consistency
463    checkpoint46a_pre
464    
465    checkpoint46
466    further merges from release1_p5
467    o new ctrl package
468      - adopted from ECCO environment to enable optimization
469      - added Eliassen Palm fluxes to controls
470    o added Eliassen Palm flux controls to gradient check package
471    o cost package
472      - Compatible with new ctrl package
473      - added Eliassen Palm cost hooks
474      - modif's of existing cost functions
475    o Adjoint-related bug fixes in kpp:
476      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
477      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
478    o autodiff package
479      - flow directives:
480        + new for S/R do_the_model_io
481        + enhanced for S/R checkpoint
482        + new gmredi.flow
483      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
484        disable adcommon.h/g_common.h by default.
485      - fixed problem for adjoint of global_max
486    o modified verification/carbon/
487    o New setup for adjoint of global_ocean
488    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
489    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
490    o incorporated hooks for sponge layer code (external_forcing.F)
491    
492    checkpoint45d_post
493    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
494    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
495      (affects plume_on_slope "cg2d" output)
496    o add new parameter deltaTfreesurf for free-surface time stepping
497    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
498    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
499    o change phiMin in exp1 (to agree with documentation)
500    o add new flags:
501     - T,S forcing inside/outside Adams-Bashforth
502     - turn off temp,salt advection and/or forcing
503     - for each tracer, define internal flag for multiDimAdvection & A-B
504    o monitor: change definition of KE to check conservation of Energy
505    
506    checkpoint45c_post
507    o Removed f90 comments ("!")
508    o Modified initialisations to enable exf package for MITgcm
509      (without invoking ECCO_PACKAGE).
510    o modifications to gradient check package (Martin Losch)
511      - enable centered differences
512      - modified format of standard output
513    
514    checkpoint45b_post
515    o cleaned exchange calls in cg2d
516    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
517    o included CPP option SINGLE_LAYER_MODE in thermodynamics
518      to configure barotropic setup (Martin Losch)
519    o moved some initialisations within bi,bj loop in dynamics
520      (TAF flow dependency)
521    o in initialise_varia, moved call packages_init_variables
522      before convective_adjustment_init
523      (corresponding adjustment of TAF tape initialisation).
524    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
525    
526    checkpoint45a_post
527    o compute Rho over the whole domain (extend iMin,jMin indices)
528    o specific exchange for X-slice domain (case Ny=1)
529    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
530    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
531    
532    checkpoint44h_post = checkpoint45
533    o Fix to restore differentiability:
534      place at which packages_init_variables is called in
535      initialise_varia is crucial for reverse control flow.
536    o modifications in GMRedi to enable stable adjoint
537      (corresponding modif's in thermodynamics, dynamics)
538    o added missing hook for sponge layer code in external_forcing
539    o modified test cost functions
540    o storing in gad_advection (plus removal of write(0,*)!
541    o missing headers TR1.h added in convective_adjustment routines
542    o errorMessageUnit set non-equal zero in eeboot
543      (conflict on some platforms, e.g. IBM SP3)
544    o modified carbon verif.
545    
546    checkpoint44h_pre
547    o vertical grid option: allow to put the Interface at the middle between
548      2 cell-centers ; replace delZ in pkg/kpp by drF.
549    o GM Advective form: Tracers are advected using the residual transport (=
550      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
551    
552    checkpoint44g_post
553    o fix surface correction term in multiDimAdvection (affects plume_on_slope
554      results) ; ifdef missing in thermodynamics.F
555    
556    checkpoint44f_pre,checkpoint44f_post
557    o added PTRACERS package
558      This allows an arbitrary number of passive tracers to be integrated
559      forward simultaneously with the dynamicaly model.
560      + Implemented so far:
561        - basic forward algorithm (time-stepping, advection, diffusion, convection)
562        - I/O and checkpointing
563        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
564      + Not implemented so far:
565        - KPP
566        - OBCS
567      + No specific example supplied (yet) but global_ocean.90x40x15 has the
568        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
569        line in data.pkg.
570      + This package is disabled by default since it increases storage.
571    
572    
573    o testscript: added -cleanup option
574    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
575                 b) enable to filter 2D fields.
576    
577    checkpoint44e_pre,post
578    o re-wrote convective adjustment to use pre-calculated weights
579      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
580      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
581      Original calls to convect() still in place.
582    
583    chkpt44d_pre,post
584    o added missing EXCLUDE_MONITOR flags
585    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
586      (incompatible typ in MIN/MAX expressions caused problems
587      on IBM SP3)
588    o in genmake added variable MAKEDEPEND
589      plus resetting for case SunOS
590    o added timer_stats.c routine for IBM SP3
591    o removed variables in dynamics
592    !!! I forgot to create tag chkpt44d_pre !!!
593    !!! But chkpt44d_pre = chkpt44c_post    !!!
594    
595    o real fresh water flux implemented with non-linear free-surface.
596    
597    chkpt44c_pre,post
598    o few fix (mask in shap_s2, EmPmR in external_field_load,
599      USE_NATURAL_BCS in solve_for_P);
600    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
601    
602    checkpoint44b_pre/_post
603    o merge of relevant stuff from the ecco-branch:
604      - genmake: removed $S64 overwrite for case SunOS
605      - pkg/exf: update and corrections for field swapping and obcs
606      - pkg/ecco: parameter lists for the_model_main, the_main_loop
607                  harmonized between ECCO and MITgcm
608      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
609                      updated checkpointing_lev... lists for obcs
610      - model/src: minor changes in forward_step, plot_field
611                   added directive for divided adjoint in the_main_loop
612      - pkg/mdsio: added mdsio_gl_slice
613    
614    o check parameters & config (chkpt44a_pre,post)
615    o OBC and NonLin_FrSurf.
616    
617    checkpoint44
618    o fix bug in mom_vi_del2uv
619    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
620    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
621    o update AIM experiments (NCEP input files)
622    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
623    o added some stuff for AD
624    
625    checkpoint43
626    o added two new advection tests
627    o added global 4x4 degree ocean test
628    o added test of H&S94 with free surface on cube
629    o some final mods for gradient check, adjoint,...
630    
631    checkpoint42
632      Fixed AD-related problems:
633    o Store directives up-to-date with re-arranged Adams-Bashforth
634      (mainly thermodynamics.F)
635    o New store directives for multi-dim. advection schemes
636      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
637      * new common block and key passkey
638      (mainly gad_advection.F)
639    o Modified store directives for split of dynamics/thermodynamics
640      for the case ALLOW_KPP
641    o Cleaned argument list for timestep_tracer.F
642    
643    checkpoint41
644    o re-formatted/added comments in prologues of key subroutines
645      to work with protex
646    
647    checkpoint40
648    o moved calc_gs, calc_gt and calc_tr1 back to model/src
649    o added FLT (floats) package from Arne along with demo. experiment
650    o re-arranged Adams-Bashforth scheme for tracers to allow easier
651      implementation of forward-in-time forcing terms
652    o more mods for non-linear free-surface including new variable
653    o modified multi-dim method to work on cube
654    o bug fix in KPP (from DM)
655    
656    checkpoint40pre9
657    o added DST advection schemes
658    o fix MPI bug on SGI's
659    o modifications for non-linear free-surface
660    o fixed conditionals for fixed flow/passive tracer only mode
661    o added tension/strain form of stress tensor
662    o changes to commenting of arguments for TAF/TAMC
663    o added/updated many matlab scripts
664    o added multi-dimensional advection method for tracers
665      
666    checkpoint40pre8
667    o new package rw/
668      Added method for dumping intermediate local arrays:
669      mdsio_writetile - same as mdsio_writefield except works from inside
670                        bi,bj loop
671      mdsio_writelocal - same as mdsio_writetile except works for local
672                         arrays
673      write_local_r? - higher-level wrapper for mdsio_writelocal
674      Controlled by diagFreq. Defaults to zero (ie. no dumps)
675      Example given at end of mom_vecinv.F that dumps some local arrays.
676    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
677      control flux-form versus vector invariant code.
678      Switch is runtime flag vectorInvariantMomentum (defaults to false)
679      or genmake -DISABLE ...
680    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
681      (additional storing is now needed for case vecinv;
682      currently nothing implemented to switch this storing off
683      in case fluxform is used since no CPP flag available).
684    
685    checkpoint40pre7
686    o bug fix in dynamics.F
687      calc_viscosity called before k=1,Nr loop.
688    o added some #ifdef's ALLOW_PASSIVE_TRACER
689    o cleaned initialisations in ctrl_map_ini
690      related to TAF
691    
692    checkpoint40pre6
693    o split dynamics into thermodynamics & dynamics
694    o corresponding split of calc_diffusivity into
695      calc_diffusivity, calc_viscosity
696      (kpp_calc_diff, kpp_calc_visc).
697    o Added diffkr, kapgm to control variables
698    o bug fix in gmredi_slope_limit for ldd97
699    
700    checkpoint40pre5
701    o proper initialization of Adams-Bashforth time stepping
702      + uses forward step for very first step of model (iter=0)
703    o re-generated *all* output since almost all output is modified by this
704      change (sorry but we've been putting this one off for about 2 years)
705      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
706        *not* regenerated since they are already out of date and I don't
707        want to create the impression that they are suddenly working.
708    o removed KAP stuff for DEC's
709    o modified/added many .cvsignore files in */code and */input
710    o added new expt "solid-body.cs-32x32x1"
711      + this uses an alternative form of ini_curvilinear_grid.F which
712        is not necessarily any better than the current one...
713    
714    checkpoint40pre4
715    o added re-initialisations of utrans,vtrans,rtrans in
716      calc_common_factors which are crucial for TAF.
717    o extended iMin,jMin range for calc_common_factors,
718      calc_diffusivity
719    o added option ALLOW_PASSIVE_TRACER
720    o a few minor updates and fixes
721    
722    checkpoint40pre3
723    o created calc_gtr1.F for gad package
724    o split the_main_loop and re-introduced forward_step
725    o some recomputations of nIter0 for TAMC
726    
727    checkpoint40pre2
728    o Updated to latest branch of AJA, JMC
729    o Added gradient check package
730    o Added routines for passive tracer handling
731    o Added carbon sequestration sensitivity experiment
732    
733    checkpoint39
734     o Modifications and fixes to support TAMC
735       (mainly missing or wrong directives)
736     o Corrected common blocks when fooling TAMC to produce adjoint I/O
737       in addummy_in_stepping
738     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
739     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
740     o Included following packages:
741       cal: calendar
742       exf: external forcing
743       ecco: essential routines to control use of cal, exf
744             (NB: this is not the full ECCO environment)
745     o disabled some packages by default in genmake
746    
747    checkpoint38
748     o see notes_c37_adj.txt
749     o corrected wrong layer index in external_forcing_t
750     o replaced the_main_loop/forward_step by the_main_loop
751     o removed forceoutput from write_state
752       (replaced criteria for initial/final state)
753     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
754    
755    checkpoint37
756     o mdsio.F routine split and packaged in pkg/mdsio
757       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
758        used unless genmake -disable=mdsio)
759     o allow a more precise surface-geopotential gradient for the atmosphere
760       taking into account the change in space of Alpha (=1/rho) at the surface.
761     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
762       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
763     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
764       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
765       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
766     o Time-Average diagnostics defined as a pseudo package "timeave".
767     o pickup files : old pickup (before c35) did not work with new code (c35
768       and after) unless activating 2 commented lines in initialise-varia.
769     o Non-Hydrostatic pickup file Pb fixed.
770     o bug with Rigid-lid version (since c35) fixed.  
771    
772    checkpoint36
773     o implement Crank-Nickelson barotropic time-stepping
774     o recover Time-Average diagnostics
775     o fix Pb in checkpoint (PR#19)
776     o AIM become a standard package ; clean unused CPP_kees
777    
778    checkpoint35
779     o subtantial rewrite of dynamics.f
780     o allows staggered time-stepping
781     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
782     o added bottom drag (linear + quadratic)
783    
784    checkpoint34
785     o Modified exchange routines for correct reverse simulation.
786     o Added verification output to comply with bug fix in impldiff.F
787       as of c33 (exp2, natl_box).
788     o Corrected store directives in dynamics.F
789     o Corrected array boundaries in impldiff.F
790     o Corrected array dimensions in gmredi.
791       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
792     o Added routine GLOBAL_SUM_INT to global_sum.F
793     o Added mdsio_gl.F for ECCO purposes.
794    
795    checkpoint33
796     o Fixed bug in lower BC in impldiff.F
797     o Fixed confusion about units of forcing arrays in FFIELDS.h
798       namely Fu,Fv,Qnet,Qsw,EmPmR:
799       - Removed verification/natl_box/code/external_fields_scale.F
800         (did not differ from that in model/src)
801       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
802         (see FFIELDS.h for description)
803       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
804         kpp_calc.F and kpp_transport_t.F
805       - Removed model/src/external_fields_scale.F and calls to it
806       - verification/natl_box uses flux data with "atmospheric" sign so
807         a special version of external_fields_load.F is used to
808         change the data as it's read in. This way, the arrays
809         have the right units and signs at all times tha a user could
810         possibly use them.
811     o Corrected genmake to delete a temporary file during configuration
812    
813    checkpoint32
814     o Scaling of forcing fields moved from external_forcing.F to
815       external_fields_scale.F, called directly after loading fields.
816     o Surface relaxation terms added to surface tendency fields in
817       extra subroutine.
818     o impldiff.F changed to avoid storing by TAMC of huge intermediate
819       fields.
820     o Changes in GMRedi to comply with packaging structure.
821     o Modifications and bug fixes in KPP package.
822     o Verification experiment for KPP added (verification/nat_box/)
823    
824    checkpoint31
825     o Packages interface brought in line with defined standard
826       -> new routines packages_...F
827       -> changes in initialise_fixed.F, initialise_varia.F
828       -> enables initialisation interface for ECCO package
829     o Rescaling of external forcing fields immediately after read
830       (removed from external_forcing.F)
831       -> new: surface_fields_scale.F
832       -> affects ini_foorcing.F, external_fields_load.F
833     o Computation of surface tendencies before tendency updates.
834       -> new: external_forcing_surf.F
835     o Change of variable names useGMRedi, useKPP, useECCO
836     o Further changes in dynamics.F, impldiff.F for TAMC
837     o Tested for experiments 0, 2, 4.
838       - not yet tested for GMRedi.
839       - not yet tested for KPP.
840    
841    checkpoint30
842     o Updates for OBCs
843     o New experiment for test OBCs (internal_wave)
844     o New output.txt in verification/exp4/results/
845     o Updates for KPP: calculation of viscosity corrected, new variables
846       kpp_dumpFreq and kpp_taveFreq
847     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
848       and entry for T90 in genmake
849    
850    checkpoint29
851     o packaged KPP and GM/Redi
852    
853    checkpoint28
854     o Corrected initialization of hFacMin for difference vertical coordinates
855     o Modified calculation of partial cell thickness to more robust algorithm
856     o config_summary.F: replaced write_1D_... by write_0D_...
857       read_write.F: added subroutines write_0D_...
858     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
859       included some initialisations required for TAMC.
860     o routine calc_isoslopes: modified sqrt computation to make it
861       differentiable for zero argument.
862     o routines dynamics, impldiff:
863       included store directives and tape key computations required for TAMC.
864     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
865    
866    checkpoint27
867     o fixed calc_isoslopes() to so that cancellation of terms in tensor
868       formulation works properly with variable resolution.
869     o restructured the calling tree between the_model_main() and dynamics()
870     o split initialise() into initialise_fixed() and initialise_varia()
871     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
872       in new routine ini_psurf()
873    
874    checkpoint26
875     o moved some #ifdef in optional routines to encompass everything
876       except the argument declarations. This was using up some memory.
877     o fixed macros like _ADT to work with both versions of Linux cpp
878     o cleaned up some unused and uninitialized variables
879       (helps when debugging with strict compile options)
880     o split up CPP_EEOPTIONS.h into options and macros
881       (macros are now in eesupp/inc/CPP_EEMACROS.h)
882     o patch for 2 processor JAM mode
883    
884    checkpoint25
885     o updates for OBCs and NH
886     o dramatically reduced memory usage
887     o added "JAM" routines for use on Artic network
888     o parameterization of convection by implicit vertical diffusion
889     o added a diagnostic of convective index
890     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
891       (this is was partly for OBCs and NH but also in anticipation of
892        an explicit free-surface option)
893     o initial state input files for U and V
894    
895    checkpoint24
896     o Removed some spurious "REAL"s
897     o Updated KPP to latest version from JPL
898     o Added a COS(latitude) in horizontal viscosity
899    
900    checkpoint23
901     o Added del^4 diffusion for salt and temperature
902     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
903    
904    checkpoint22
905     o Made many small changes: implicit none, format(i5), etc...
906     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
907    
908    checkpoint21
909     o Introduced new I/O package that supports direct-access records (mdsio.F)
910     o Split-up mid-level I/O routines
911     o Updated input data for experiments 0,1,2,4 and 5
912     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
913    
914    checkpoint20
915     o Tidied up open-boundaries some more
916     o Added non-hydrostatic code
917     o Fixed some input data
918     o Modified MPI start-up to work in "coupled" context.
919    
920    checkpoint19
921     o Tidied up directory structure for verification experiments.
922     o Added new code for open boundaries.
923     o Corrected advective terms near boundaries.
924     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
925     o Implemented free-slip/no-slip BCs and del^4 dissipation.
926     o Split default parameters out of ini_parms.F into set_defaults.F.
927    
928    checkpoint18
929     o Further changes for optional code generation with
930       CPP - ugh!
931    
932    checkpoint17
933     o Beginning to incorporating modularity
934       for supporting atmos. and ocean configs.
935     o Small changes for TAMC complinace
936     o New ultra simple test case. Barotropic box
937       configuration "exp0".
938    
939    checkpoint16
940     o Minor changes to exchange routines to support
941       accumulation in reverse mode. Adjoint of an
942       assignment is an addition.
943     o Changes to support compilation by TAMC (LR(1)
944       syntax) and by g77 under Linux ( 72 character
945       limit ).
946    
947    checkpoint15
948     Rewrote exchange routines to allow
949     o General tile <-> tile connectivity.
950     o TAMC reverse mode flag ( is this really needed? )
951     o Variable width overlap and exchange region widths.
952     o Hooks for sharing data via DMA, Arctic, Memory Channel,
953       shmput/shmget, VIA, SYSV shmem and every other cool
954       communication method.
955    
956    checkpoint14
957     Consistent isomorphism chages made. These allow dynamical core
958     to support both pressure and meters as a vertical coordinate.
959    
960  checkpoint13  checkpoint13
961   Release which corrects global_max problem and a couple   Release which corrects global_max problem and a couple
962   of KGM time-averaging diagnostic errors. Also contains   of KGM time-averaging diagnostic errors. Also contains

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