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revision 1.1 by cnh, Tue May 26 14:38:05 1998 UTC revision 1.136 by dimitri, Tue Feb 25 06:35:46 2003 UTC
# Line 2  $Header$ Line 2  $Header$
2    
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    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
961     Release which corrects global_max problem and a couple
962     of KGM time-averaging diagnostic errors. Also contains
963     a double-gyre experiment setup as well as the baseline
964     4 degree global template. The double gyre template is
965     organised to allow it to be applied automatically to
966     the baseline configuration.
967    
968    branch-point-rdot
969     A few tidy-ups have been made bt the real point of this
970     check-point (excuse the pun) is to allow a branch to be
971     made for the purposes of adding the rDot alterations.
972     I don't want to commit the rDot to the main-trunk until
973     we've actually tested it...
974    
975    checkpoint12
976     Tidy up and added generic genmake script (formerly
977     configure script).
978     Released to testers.
979    
980    checkpoint11
981     Re-arranged initialise() and introduced ini_vertical_grid()
982     and ini_masks_etc().
983    
984    checkpoint10
985     Introduced the configure script.
986     Separated out the diags package.
987     Added template for writing time-averages of tile/intermediate quantities.
988     Updated SIZE.h in exp2 and made the data big-endian.
989    
990    checkpoint9
991     MPI fix. Filename changes (meta/data). salbin*y stuff.
992     General tidy-up.
993     SST.bin SSS.bin added to verification/exp2
994    
995    checkpoint8
996     Inludes time-dependant forcing and time-averaging.
997     Works at 4x4 and 2.8125x2.8125 global
998    
999    checkpoint7-4degree-ref
1000     Branch from checkpoint7. Released for application to
1001     global modeling and general modeling - process studies, regional
1002     model etc..
1003     Configured for verification/exp2 - 4 degree global, two process.
1004    
1005    checkpoint7
1006     Created by cnh
1007     Simple 4 degree global simulation
1008     configuration.
1009     Includes climatological wind,
1010     hydrography, bathymetry etc
1011     Does not include Heat Flux and E-P
1012    
1013    checkpoint6
1014     Created by cnh
1015     merged checkpoint5 with CD and
1016     spherical polar code.
1017     Still some problems with GM Redi
1018     abd full topography.
1019    
1020    checkpoint5
1021     Created by AJA
1022     contains updates to GM Redi
1023     and reordered timestepping loop
1024     for Implicit Diffusion.
1025    
1026    checkpoint4
1027     Created by cnh
1028     Contains memory saving macros ( _rdxc etc..) for when
1029     grid variations are limited.
1030     Contains polynomial coeffs for EOS and knudsen program
1031     for generation.
1032    
1033  checkpoint3  checkpoint3
1034   Created by cnh   Created by cnh
1035   Added extra flags for runtime options   Added extra flags for runtime options
# Line 20  checkpoint1 Line 1048  checkpoint1
1048   Restructured kloop in dynamics.F   Restructured kloop in dynamics.F
1049   Added non-linear EOS   Added non-linear EOS
1050    
1051  baseline - Original checked in code  baseline
1052     Original checked in code
1053    

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