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revision 1.29 by adcroft, Thu Jul 13 14:22:58 2000 UTC revision 1.164 by heimbach, Fri Jun 20 15:11:40 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint50h_post
7    o new package "land": provide surface BC for AIM.
8    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
9    o AIM: use true log-P extrapolation for near surface temp (= as in
10        F.Molteni paper) ; update aim.5l_cs output.
11    o New variable in PARM03 for more flexible pickups
12    o somewhat cleaned package initialisation sequence for
13      ctrl/ cost/ ecco/ in packages_... routines
14    
15    checkpoint50g_post
16    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
17      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
18      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
19        made the default because of faster convergence than ADI
20    
21    checkpoint50f_post
22    o exf totally restructured
23      - replaced all exf_set_ routines by one generic exf_set_gen.F
24        and made sure it's still differentiable
25      - split exf_getffields.F into new exf_bulkformulae.F
26      - exf_inscal_/exf_outscal_ suffixes consistent with field names
27      - updated adjoint/makefile and relevant verif. accordingly
28    
29    checkpoint50f_pre
30     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
31          + change Evap over land. (update aim.5l_cs output)
32     o added missing .cvsignores and made uniform across expts
33     o changed configuration of tidal_basin_2d expt
34     o added pkg/debug functions for tracing code in fatal crashes
35     o tidied pkg/monitor to use MONITOR_OPTIONS.h
36     o new fn in pkg/monitor to stop model if solution grows too big
37     o removed lots of single quotes from comments
38    
39    checkpoint50e_post
40    o make KPP work with PTRACERS
41     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
42       nearly a copy of kpp_transport_s
43     - there is no analogue to SurfaceTendencyS, so I have to use
44       gPtr(of the surface layer) instead
45    o add a new platform SunFire+mpi (SunFire 15000) to genmake
46    checkpoint50e_pre
47    
48    checkpoint50d_post
49    o change kpp output from multiple-record state files to single-record state
50      files analogous to write_state.F
51    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
52      analogous to the cg2d-related output.
53    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
54      so that writing to internal file fn (with length 512) fails.
55    checkpoint50d_pre
56    
57    checkpoint50c_post
58    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
59    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
60    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
61    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
62    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
63    
64    checkpoint50c_pre
65    Merging from release1_p13:
66    o bug fix for pkg/seaice dynamic solver
67    o Added SEAICE_initialHEFF to pkg/seaice
68    
69    checkpoint50b_post
70    o store u*,v* in gU,V instead of in guNm1,gvNm1
71    o in order to put the momForcing out of the Adams-Bashforth:
72      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
73      to timestep.F
74    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
75    o re-generate output for highly sensitive test-exp:
76       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
77    
78    checkpoint50b_pre
79    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
80    o corrected CPP option mismatch in exf_Bulk... functions for case
81      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
82    
83    checkpoint50a_post
84    o Bug fix for merging between c50 and KPP.
85      ikey was passed from thermodynamics to kpp_calc via
86      common block rather than being recomputed in kpp_calc,
87      in contradiction with new key itdkey.
88      New key ikppkey created, and tamc.h headers updated.
89    
90    checkpoint50
91    - 2nd step of merge with ecco-branch:
92      merge changes in ecco-branch back into main trunk
93    - bug fix in find_alpha
94    - more storing in gmredi_calc_tensor.F, kpp_routines.F
95    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
96    - merged some sliced AD support routines
97    
98    checkpoint49
99    merged from ecco-branch:
100    o exf:
101      - Enable initialisation of forcing fields to constant
102        (runtime) values.
103      - in exf_getffields.F
104        Reduce i-/j-loop to interior domain, discarding overlaps.
105        That also fixes wrong TAF-key computations for key_1, key_2
106        with bulf formulae.
107      - exf_init.F modify #ifdef for exf_init_evap
108      - exf_getffieldrec.F, ctrl_getrec.F
109        The following INT-usages are not safe:
110          fldsecs  = int(fldsecs/fldperiod)*fldperiod
111          fldcount = int(fldsecs/fldperiod) + 1
112        and were modified.
113    o autodiff: checkpoint_lev...
114      - updated storing for bulk formulae (some arrays were missing)
115      - added state for seaice package
116      - synchronized with main branch
117    o DIVA:
118      Modif.s in
119      - the_main_loop.F
120      - the_model_main.F
121      and added cost_final_restore.F cost_final_store.F
122      o With these changes, it is possible to fully separate
123        the first forward run to compute the cost function (mdthe_main_loop)
124        and adjoint runs over individual DIVA intervals (adthe_main_loop)
125        into separate model executions.
126        This enables better tuning of DIVA to given queue sizes.
127      o Loss of cost function value in consecutive DIVA runs is
128        fixed by storing to 'costfinal' file.
129      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
130        beginning/end of adjoint integration is accounted for.
131      The current changes apply to TAF-1.4.26.
132      TAF has one remaining bug, requiring one manual change
133      (see MITgcm manual).
134    o cal: synchronized between MAIN and ecco-branch
135    
136    checkpoint48i_post
137    o Changes to restore differentiability of code w.r.t. previous tag
138      (mostly adding new routines to make list and replacing
139      pressure by totPhiHyd).
140    o Updated and merged grdchk package
141      - has both ADM and TLM checks
142      - works for single- and multi-proc.
143      - output cleaned
144      - worked successfully for parallel DIVA
145    o genmake:
146      - Adding -platform=SP4
147      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
148    o Modif. for DIVA:
149      ctrl_unpack should not be called in intermediate DIVA interval.
150      (similar thing would apply for active files such as
151      tbar, sbar, psbar, which should not be reinitialised;
152      only relevant for ecco-branch)
153    
154    checkpoint48h_post
155    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
156    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
157    o Added SEAICE_initialHEFF to pkg/seaice
158    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
159    
160    checkpoint48g_post
161    --- EOS:
162    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
163      store total Potential in totPhyHyd for diagnostics & EOS.
164    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
165    --- Pressure/geopotential gradient:
166    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
167    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
168      ( changes results of global_ocean_pressure )
169    o NLFS + z-coord.: add eta*Rho' contribution.
170    o accurate phiHyd when using interface-W at the middle between 2 centers
171     ( changes results of ideal_2D_oce )
172    o includes r* 2nd term in potential gradient.
173    
174    checkpoint48f_post
175    Merging from release1_p12:
176    o Modifications for using pkg/exf with pkg/seaice
177      - improved description of the various forcing configurations
178      - added basic radiation bulk formulae to pkg/exf
179      - units/sign fix for evap computation in exf_getffields.F
180      - updated verification/global_with_exf/results/output.txt
181    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
182      (SBO) core products, including oceanic mass, center-of-mass,
183      angular, and bottom pressure (see pkg/sbo/README.sbo).
184    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
185      to avoid negative values in shallow regions.
186      - updated verification/natl_box/results/output.txt
187      - updated verification/lab_sea/results/output.txt
188    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
189    o Added useSingleCpuIO option (see PARAMS.h).
190    o Updated useSingleCpuIO option in mdsio_writefield.F to
191      work with multi-field files, e.g., for single-file pickup.
192    o pkg/seaice:
193      - bug fix in growth.F: QNET for no shortwave case
194      - added HeffFile for specifying initial sea-ice thickness
195      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
196    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
197      kpp_transport_t.F, forward_step.F, and the_main_loop.F
198    o pkg/seaice:
199      - adjoint-friendly modifications
200      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
201    
202    checkpoint48e_post
203    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
204    o dynamics: change definition of computational domain & adapt mom_fluxform
205      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
206    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
207        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
208        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
209        global_ocean.90x40x15 global_with_exf global_ocean_pressure
210        inverted_barometer solid-body.cs-32x32x1
211      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
212    
213    checkpoint48d_post
214    o in preparation for r*:
215     a) use pre-computed gradient of hydrostatic potential:
216        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
217     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
218        => affects results of glob_oce_pressure (different truncation error)  
219      update output.txt of ideal_2D_oce & global_ocean_pressure
220    
221    checkpoint48d_pre
222    o in preparation for r*:
223      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
224      pass the 2 comp. of the grad. as arguments to momentum S/R.
225      but for the moment, only used if it does not change the results.
226    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
227    
228    checkpoint48c_post
229    Modifications in treatment of initial flux forcing controls
230    to avoid extra storing of flux fields.
231    
232    checkpoint48c_pre
233    o Added tidal_basin_2d experiment (currently 1D!)
234    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
235    
236    checkpoint48b_post
237    o r* coordinate added in #ifdef NONLIN_FRSURF block.
238     (modification to pressure gradient not yet implemented)
239    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
240      (for U & V) that are used for vertical advection of momentum.
241    
242    checkpoint48a_post
243    o In preparation for r*, use temp. array to compute vertical transport
244       in flux-form momentum pkg. => change results of few test-exp.
245      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
246                        lab_sea, natl_box & plume_on_slope
247    
248    checkpoint48
249    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
250    
251    checkpoint47j_post
252    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
253    o moved adexch from forward_step to addummy_in_stepping
254    o added exch in ctrl_map_...
255    o aveFreq.=0. at end of cost_final to avoid overwrite in
256      reverse checkpointing loop
257    o Yet more changes in gmredi:
258      * adgmredi_calc_tensor
259        avoiding all recomputation of gmredi_slope_limit
260      * adgmredi_x/y/rtransport
261        added flag for excessive storing to avoid recomp. of
262        u/v/rtans, dTdx/y/z
263        -> this is not really necessary and very memory-consuming
264      * adgmredi_slope_psi:
265        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
266      * gmredi_slope_limit
267        re-activated full calculation of taperfct for case 'ac02'
268    o updating verification/ adjoints of carbon, global_ocean.90x40x15
269    
270    checkpoint47i_post
271    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
272    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
273      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
274    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
275    o gmredi: fix few bugs.
276    
277    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
278    This will be a good checkpoint to plug into the ecco-branch.
279    o few modif.'s to get latest version adjointed
280      (mainly kick out code in ini_linear_phisurf)
281    o modif's to run adjoint with exactConserv
282    o case GM_BOLUS_ADVEC should be cleaned
283      S/R gmredi_slope_psi should be cleaned
284    o verification/carbon now has exactConserv=.TRUE.
285    
286    checkpoint47g_post
287    o time-average AIM output: becomes independent from statvars time-average
288      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
289    o After TAF bug fix:
290      Tested adjoint of gmredi package.
291      Tests were done with checkpoint47 rather than with latest
292      checkpoint47f_post since the latter is broken for the adjoint
293      verification/carbon/ contains both ADM and TLM gradient checks.
294    Here they are, before they get changed/lost/stolen.
295    Mostly modif.'s to fix numerical sensitivities.
296    Gradient checks OK for
297    - GM_taper_scheme:
298      * clipping
299      * ac02
300      * linear
301      * glw91
302      * dm95
303      * ldd97
304    - GMREDI_OPTIONS:
305      * GM_VISBECK_VARIABLE_K
306      * GM_NON_UNITY_DIAGONAL
307      * GM_EXTRA_DIAGONAL
308      * GM_BOLUS_ADVEC
309    in conjunction with data.gmredi parameters to be checked in
310    in a few minutes under verification/carbon/code/
311    
312    checkpoint47f_post
313    Merging from release1_p10:
314    o modifications for using pkg/exf with pkg/seaice
315      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
316        and SEAICE_EXTERNAL_FLUXES
317      - pkg/exf CPP options EXF_READ_EVAP and
318        EXF_NO_BULK_COMPUTATIONS
319      - usage examples are Experiments 8 and 9 in
320        verification/lab_sea/README
321      - verification/lab_sea default experiment now uses
322        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
323    
324    checkpoint47e_post
325    o created a tag prior to creating a branch
326    
327    checkpoint47d_post
328    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
329      at the bottom boundary had an erroneous half slip boundary condition
330    o added bottom drag and no slip boundary condition capabilities to
331      oceanic pressure coordinates code
332    o added new verification experiment global_ocean_pressure, this experiment is
333      also described in the tutorial section of the manual
334    checkpoint47d_pre
335    
336    checkpoint47c_post
337    o Added a verification experiment for a global cubed-sphere ocean run
338      -  verification/global_ocean.cubed32x32x30
339      -  uses pkg/therm_seaice and pkg/bulk_forcing
340    
341    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
342    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
343      when using P-coordinate; only implemented for atmospheric config.
344    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
345      NOTES: requires option NONLIN_FRSURF to be "#define".
346    o update advect_xz/results/output.txt (left from checkpoint44g_post)
347    
348    checkpoint47b_post
349    Merging from release1_p9:
350    o pkg/seaice
351      - removed GOTO's and added taf directives
352      - double precision constants to reduce the g77 (Linux)
353        to F77 (SGI) differences reported in release1_p8
354    o tools/genmake
355      - added SGI options
356    o verification/testscript
357      - updated to that of checkpoint47a_post
358    o verification/global_ocean.90x40x15/input/eedata
359      - modified for SGI f77 compatibility
360    o verification/lab_sea
361      - added description of sea-ice model
362      - added missing matlab routines
363      - added test of thermodynamics parallelization
364    
365    checkpoint47a_post
366    o new pkg: aim_v23
367     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
368       for now, keep the same surface forcing as before.
369     - Part-Cell implemented into AIM; check that Heat & Water are conserved
370     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
371     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
372    o add diagnostic of surface correction term in monitor output
373    
374    o bulk_force and therm_seaice
375    - Two packages:  bulk_force (Bulk forcing)
376      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
377    - Earlier integration from Stephaine Dutkiewicz
378      and Patrick Heimbach.
379    - Two ifdef statements for compile time,
380       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
381    
382    checkpoint47
383    differentiable version of checkpoint46n_post
384    o bug fix in quasihydrostaticterms
385    o * "clean" adjoint code (in terms of extensive recomputations)
386        can now be obtained for all GMREDI options (i.e. for
387        - GM_VISBECK_VARIABLE_K
388        - GM_NON_UNITY_DIAGONAL
389        - GM_EXTRA_DIAGONAL
390        - GM_BOLUS_ADVEC )
391      * However, wrong gradient check problem remains unsolved.
392      * New CPP options have been introduced for different
393        tapering schemes
394    o external_fields_load now part of differentiation list
395    o pressure needs multiple storing;
396      would be nice to have store_pressure at beginning or
397      end of forward_step, e.g. by having phiHyd global (5-dim.)
398      (NB: pressure is needed for certain cases in find_rho,
399      which is also invoked through convective_adjustment).
400    o recomputations in find_rho for cases
401     'JMD95'/'UNESCO' or 'MDJWF' are OK.
402    o #define ATMOSPHERIC_LOADING should be differentiable
403    o ini_forcing shifted to begining of initialise_varia
404    o Incorporating QNVS line search routines into MITgcm
405      (this is separate code, and therefore not under pkg)
406      lsopt/, optim/
407    o Updated verification/carbon/
408      - #define GM_VISBECK_VARIABLE_K
409      - GM_taper_scheme    = 'ldd97'    
410    
411    checkpoint46n_post
412    Merging from release1_p8:
413    o verification/natl_box:
414      updating new external_fields_load routine
415    o New package: pkg/seaice
416      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
417      The sea-ice code is based on Hibler (1979-1980).
418      Two sea-ice dynamic solvers, ADI and LSR, are included.
419      In addition to computing prognostic sea-ice variables and diagnosing
420      the forcing/external data fields that drive the ocean model,
421      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
422      The implied surface heat flux is then stored in variable
423      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
424      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
425      non-local transport term.  Because this call precedes model
426      thermodynamics, temperature under sea-ice may not be "exactly" at
427      the freezing point by the time theta is dumped or time-averaged.
428      N.B.: fairly large differences in accuracy occur across
429            different platforms/compilers; comparison between
430            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
431            generated output gives:
432       T           S           U           V
433      C D M    c        m  s        m  s        m  s        m  s
434      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
435      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
436      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
437    
438      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
439    o GAD:
440      - generated new common blocks to account for call of
441        same gad routines with differing traceridentities
442        (needed to modify tracerIdentity indices in GAD.h)
443      - generated separate common blocks for case useCubedSphereExchange
444        (Department of Futurology)
445      - parameter lists to gmredi_?transport: added tracerIdentity
446      - added new key indices to tamc.h
447    o external_fields_load:
448      - added this routine to TAF list
449      - needed to make some common blocks global and additional storing
450        along the same lines as exf package (checkpoint_lev?_directives.h)
451    o exf:
452      updated external forcing package
453      - bug fixes carried over from ecco-branch
454        (missing OBCS_OPTIONS.h in two routines)
455      - enable easy to use "no forcing".
456      - added exf I/O for atmospheric loading
457      - added exf I/O for runoff data
458      - transfered scaling between exf <-> MITgcm to exf namelist
459    o Adding new verification experiment global_with_exf.
460      This verification experiment is almost identical to the
461      global_ocean.90x40x15 experiment, except that it uses
462      the exf (and cal) package instead of the
463      external_fields_load routine (cf README file).
464    
465    checkpoint46m_post
466    o modified testscript to return -- when there are no lines of "%MON" output
467    o added new flag "quasiHydrostatic" for QH mode
468      and new routine quasihydrostaticterms()
469    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
470      New routine: mom_u_coriolis_nh()
471    o fixed sign of non-hydrostatic metric terms in u and v equations.
472      Depend on correct sign of gravitySign.
473    o added work.pc* to .cvsignore in aim directories using ifc
474    o introduced flag for controllin non-hydrostatic metric terms
475    o removed gravitySign from PARM04
476    o switched to g77/ifc from pgf77 in aim experiments
477    
478    checkpoint46l_post
479    o made convective adjustment work with pressure coordinates:
480     - changed the direction of k-loop in convective_adjustment.F for the
481       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
482     - adjusted the reference pressure k-index in convective_adjustment.F
483     - adjusted the convection condition in convect.F (in analogy to
484       calc_ivdc.F)
485     - convective_adjustment no longer computes anything on the halos
486     - removed the warnings about negative salinity from find_rho.F and
487       find_alpha.F; instead the new routine look_for_neg_salinity, called
488       at the beginning of find_rho, find_alpha, and find_beta, does a
489       check of the entire slice, if CPP-option
490       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
491    checkpoint46l_pre
492    
493    checkpoint46k_post
494    o fixed the verification/global_ocean.90x40x15 experiment:
495     - new bathymetry (the world according to A., JMC, and M.)
496     - new initial fields and forcing fields (*.bin files)
497     - new POLY3.COEFFS (for the next release one should switch to a full
498       equation of state: JMD95P or MDJWF)
499     - fixed several errors and redundancies in the data file
500     - experiment uses looped cells
501     - added matlab directory with diagnostic scripts for plotting of output
502    
503    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
504     - read AIM physics parameters from a file (data.aimphys)
505     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
506    
507    checkpoint46j_post
508    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
509    o move wVel computation at the end of the time step, in S/R integr_continuity
510    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
511    o update timeave pkg for wVel diagnostic.
512    checkpoint46j_pre
513    
514    checkpoint46i_post
515    o Clean up AIM package (and keep the results unchanged):
516      include CPP_OPTION and use IMPLICT NONE in all routines ;
517      declare all the variables _RL ; use _d 0 for all numerical constants.
518      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
519    
520    checkpoint46h_post
521    o cleaned up the use of rhoNil and rhoConst.
522      - rhoNil should only appear in the LINEAR equation of state, everywhere
523        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
524        and the dynamical equations are all divided by rhoConst
525    o introduced new parameter rhoConstFresh, a reference density of fresh
526      water, to remove the fresh water flux's dependence on rhoNil. The default
527      value is 999.8 kg/m^3
528    o cleanup up external_forcing.F and external_forcing_surf.F
529      - can now be used by both OCEANIC and OCEANICP
530    checkpoint46h_pre
531    
532     Added code to convert surface volume flux (fresh water) into
533     a mass flux when using P coordinates in the ocean (OCEANICP).
534     Note: It assumes you have set rho0=rhoConst=density of fresh water.
535    
536    checkpoint46g_post
537    o Include a new diagnostic variable phiHydLow for the ocean model
538      - in z-coordinates, it is the bottom pressure anomaly
539      - in p-coordinates, it is the sea surface elevation
540      - in both cases, these variable have global drift, reflecting the mass
541        drift in z-coordinates and the volume drift in p-coordinates
542      - included time averaging for phiHydLow, be aware of the drift!
543    o depth-dependent computation of Bo_surf for pressure coordinates
544      in the ocean (buoyancyRelation='OCEANICP')
545      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
546        Theta, Salinity, and Pressure in the parameter list. This routine is
547        presently contained in find_rho.F. This routine does not give the
548        correct density for 'POLY3', which would be a z-dependent reference
549        density.
550    o cleaned up find_rho
551      - removed obsolete 'eqn' from the parameter list.
552    o added two new verification experiments: gop and goz
553      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
554    checkpoint46g_pre
555    
556    checkpoint46f_post
557    o Enable tangent linear (forward mode) gradient checks:
558      - extended active file handling to g_... files
559      - added TANGENT_SIMULATION to theSimulationMode
560      - extended grdchk package accordingly
561    o added tangent linear setup in verification/carbon/code_ftl
562    o added adjoint setup in verification/front_relax/code_ad
563    
564    checkpoint46e_post
565    o Added new equation of state -> MDJWF
566      - EOS of McDougall et al., 2002, JAOT, submitted
567      - caveat: the equation of state is only valid for a smaller (more
568        realistic?) range of values than JMD95P/Z and UNESCO
569      - added masks to the calculation of pressure in store_pressure
570      - added more check values for density in check_eos (ini_eos.F), some of
571        the old check values are out of the range of the MDJWF-eos, so don't
572        expect perfect matches for those
573    checkpoint46e_pre
574    
575    checkpoint46d_post
576    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
577      'OCEANICP', also initialised field pressure correctly in ini_eos in the
578      case of pressure coordinates. eosType='JMD95Z' in
579      combination with buoyancyRelation='OCEANICP' now causes an error.
580    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
581      in find_alpha/beta.
582    checkpoint46d_pre
583    
584    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
585      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
586    
587    checkpoint46c_post
588    o Changes necessary for ocean in p-coordinates
589     -  Added new buoyancy relation = 'OCEANICP'
590     -  Added new parameters = gravitySign (this used to be contained inside
591        the factor dRdZ which I added when we first switched to R coordinates).
592     X GM/Redi is not compatible (yet)
593     X bottom drag and no-slip need to be debugged.
594    checkpoint46c_pre
595    
596    checkpoint46b_post
597    o Added new equation of state -> JMD95Z and JMD95P
598      - EOS of Jackett and McDougall, 1995, JAOT
599      - moved all EOS parameters into EOS.h
600      - new routines ini_eos.F, store_pressure.F
601    o Added UNESCO EOS, but not recommended because it requires
602      in-situ temperature (see JMD95)
603    o Modified formatting for knudsen2.f in utils/knudsen2 and added
604      unesco.f to be used with POLY3
605    checkpoint46b_pre
606    
607    checkpoint46a_post
608    o Added (atmospheric) pressure loading
609      - new field in FFIELDS.h, etc...
610      - new cpp flag ATMOSPHERIC_LOADING
611    o Changed hFacC to _hFacC in calc_phi_hyd.F
612    o Added SHORTWAVE_HEATING to some files for consistency
613    checkpoint46a_pre
614    
615    checkpoint46
616    further merges from release1_p5
617    o new ctrl package
618      - adopted from ECCO environment to enable optimization
619      - added Eliassen Palm fluxes to controls
620    o added Eliassen Palm flux controls to gradient check package
621    o cost package
622      - Compatible with new ctrl package
623      - added Eliassen Palm cost hooks
624      - modif's of existing cost functions
625    o Adjoint-related bug fixes in kpp:
626      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
627      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
628    o autodiff package
629      - flow directives:
630        + new for S/R do_the_model_io
631        + enhanced for S/R checkpoint
632        + new gmredi.flow
633      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
634        disable adcommon.h/g_common.h by default.
635      - fixed problem for adjoint of global_max
636    o modified verification/carbon/
637    o New setup for adjoint of global_ocean
638    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
639    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
640    o incorporated hooks for sponge layer code (external_forcing.F)
641    
642    checkpoint45d_post
643    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
644    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
645      (affects plume_on_slope "cg2d" output)
646    o add new parameter deltaTfreesurf for free-surface time stepping
647    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
648    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
649    o change phiMin in exp1 (to agree with documentation)
650    o add new flags:
651     - T,S forcing inside/outside Adams-Bashforth
652     - turn off temp,salt advection and/or forcing
653     - for each tracer, define internal flag for multiDimAdvection & A-B
654    o monitor: change definition of KE to check conservation of Energy
655    
656    checkpoint45c_post
657    o Removed f90 comments ("!")
658    o Modified initialisations to enable exf package for MITgcm
659      (without invoking ECCO_PACKAGE).
660    o modifications to gradient check package (Martin Losch)
661      - enable centered differences
662      - modified format of standard output
663    
664    checkpoint45b_post
665    o cleaned exchange calls in cg2d
666    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
667    o included CPP option SINGLE_LAYER_MODE in thermodynamics
668      to configure barotropic setup (Martin Losch)
669    o moved some initialisations within bi,bj loop in dynamics
670      (TAF flow dependency)
671    o in initialise_varia, moved call packages_init_variables
672      before convective_adjustment_init
673      (corresponding adjustment of TAF tape initialisation).
674    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
675    
676    checkpoint45a_post
677    o compute Rho over the whole domain (extend iMin,jMin indices)
678    o specific exchange for X-slice domain (case Ny=1)
679    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
680    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
681    
682    checkpoint44h_post = checkpoint45
683    o Fix to restore differentiability:
684      place at which packages_init_variables is called in
685      initialise_varia is crucial for reverse control flow.
686    o modifications in GMRedi to enable stable adjoint
687      (corresponding modif's in thermodynamics, dynamics)
688    o added missing hook for sponge layer code in external_forcing
689    o modified test cost functions
690    o storing in gad_advection (plus removal of write(0,*)!
691    o missing headers TR1.h added in convective_adjustment routines
692    o errorMessageUnit set non-equal zero in eeboot
693      (conflict on some platforms, e.g. IBM SP3)
694    o modified carbon verif.
695    
696    checkpoint44h_pre
697    o vertical grid option: allow to put the Interface at the middle between
698      2 cell-centers ; replace delZ in pkg/kpp by drF.
699    o GM Advective form: Tracers are advected using the residual transport (=
700      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
701    
702    checkpoint44g_post
703    o fix surface correction term in multiDimAdvection (affects plume_on_slope
704      results) ; ifdef missing in thermodynamics.F
705    
706    checkpoint44f_pre,checkpoint44f_post
707    o added PTRACERS package
708      This allows an arbitrary number of passive tracers to be integrated
709      forward simultaneously with the dynamicaly model.
710      + Implemented so far:
711        - basic forward algorithm (time-stepping, advection, diffusion, convection)
712        - I/O and checkpointing
713        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
714      + Not implemented so far:
715        - KPP
716        - OBCS
717      + No specific example supplied (yet) but global_ocean.90x40x15 has the
718        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
719        line in data.pkg.
720      + This package is disabled by default since it increases storage.
721    
722    
723    o testscript: added -cleanup option
724    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
725                 b) enable to filter 2D fields.
726    
727    checkpoint44e_pre,post
728    o re-wrote convective adjustment to use pre-calculated weights
729      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
730      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
731      Original calls to convect() still in place.
732    
733    chkpt44d_pre,post
734    o added missing EXCLUDE_MONITOR flags
735    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
736      (incompatible typ in MIN/MAX expressions caused problems
737      on IBM SP3)
738    o in genmake added variable MAKEDEPEND
739      plus resetting for case SunOS
740    o added timer_stats.c routine for IBM SP3
741    o removed variables in dynamics
742    !!! I forgot to create tag chkpt44d_pre !!!
743    !!! But chkpt44d_pre = chkpt44c_post    !!!
744    
745    o real fresh water flux implemented with non-linear free-surface.
746    
747    chkpt44c_pre,post
748    o few fix (mask in shap_s2, EmPmR in external_field_load,
749      USE_NATURAL_BCS in solve_for_P);
750    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
751    
752    checkpoint44b_pre/_post
753    o merge of relevant stuff from the ecco-branch:
754      - genmake: removed $S64 overwrite for case SunOS
755      - pkg/exf: update and corrections for field swapping and obcs
756      - pkg/ecco: parameter lists for the_model_main, the_main_loop
757                  harmonized between ECCO and MITgcm
758      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
759                      updated checkpointing_lev... lists for obcs
760      - model/src: minor changes in forward_step, plot_field
761                   added directive for divided adjoint in the_main_loop
762      - pkg/mdsio: added mdsio_gl_slice
763    
764    o check parameters & config (chkpt44a_pre,post)
765    o OBC and NonLin_FrSurf.
766    
767    checkpoint44
768    o fix bug in mom_vi_del2uv
769    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
770    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
771    o update AIM experiments (NCEP input files)
772    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
773    o added some stuff for AD
774    
775    checkpoint43
776    o added two new advection tests
777    o added global 4x4 degree ocean test
778    o added test of H&S94 with free surface on cube
779    o some final mods for gradient check, adjoint,...
780    
781    checkpoint42
782      Fixed AD-related problems:
783    o Store directives up-to-date with re-arranged Adams-Bashforth
784      (mainly thermodynamics.F)
785    o New store directives for multi-dim. advection schemes
786      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
787      * new common block and key passkey
788      (mainly gad_advection.F)
789    o Modified store directives for split of dynamics/thermodynamics
790      for the case ALLOW_KPP
791    o Cleaned argument list for timestep_tracer.F
792    
793    checkpoint41
794    o re-formatted/added comments in prologues of key subroutines
795      to work with protex
796    
797    checkpoint40
798    o moved calc_gs, calc_gt and calc_tr1 back to model/src
799    o added FLT (floats) package from Arne along with demo. experiment
800    o re-arranged Adams-Bashforth scheme for tracers to allow easier
801      implementation of forward-in-time forcing terms
802    o more mods for non-linear free-surface including new variable
803    o modified multi-dim method to work on cube
804    o bug fix in KPP (from DM)
805    
806    checkpoint40pre9
807    o added DST advection schemes
808    o fix MPI bug on SGI's
809    o modifications for non-linear free-surface
810    o fixed conditionals for fixed flow/passive tracer only mode
811    o added tension/strain form of stress tensor
812    o changes to commenting of arguments for TAF/TAMC
813    o added/updated many matlab scripts
814    o added multi-dimensional advection method for tracers
815      
816    checkpoint40pre8
817    o new package rw/
818      Added method for dumping intermediate local arrays:
819      mdsio_writetile - same as mdsio_writefield except works from inside
820                        bi,bj loop
821      mdsio_writelocal - same as mdsio_writetile except works for local
822                         arrays
823      write_local_r? - higher-level wrapper for mdsio_writelocal
824      Controlled by diagFreq. Defaults to zero (ie. no dumps)
825      Example given at end of mom_vecinv.F that dumps some local arrays.
826    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
827      control flux-form versus vector invariant code.
828      Switch is runtime flag vectorInvariantMomentum (defaults to false)
829      or genmake -DISABLE ...
830    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
831      (additional storing is now needed for case vecinv;
832      currently nothing implemented to switch this storing off
833      in case fluxform is used since no CPP flag available).
834    
835    checkpoint40pre7
836    o bug fix in dynamics.F
837      calc_viscosity called before k=1,Nr loop.
838    o added some #ifdef's ALLOW_PASSIVE_TRACER
839    o cleaned initialisations in ctrl_map_ini
840      related to TAF
841    
842    checkpoint40pre6
843    o split dynamics into thermodynamics & dynamics
844    o corresponding split of calc_diffusivity into
845      calc_diffusivity, calc_viscosity
846      (kpp_calc_diff, kpp_calc_visc).
847    o Added diffkr, kapgm to control variables
848    o bug fix in gmredi_slope_limit for ldd97
849    
850    checkpoint40pre5
851    o proper initialization of Adams-Bashforth time stepping
852      + uses forward step for very first step of model (iter=0)
853    o re-generated *all* output since almost all output is modified by this
854      change (sorry but we've been putting this one off for about 2 years)
855      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
856        *not* regenerated since they are already out of date and I don't
857        want to create the impression that they are suddenly working.
858    o removed KAP stuff for DEC's
859    o modified/added many .cvsignore files in */code and */input
860    o added new expt "solid-body.cs-32x32x1"
861      + this uses an alternative form of ini_curvilinear_grid.F which
862        is not necessarily any better than the current one...
863    
864    checkpoint40pre4
865    o added re-initialisations of utrans,vtrans,rtrans in
866      calc_common_factors which are crucial for TAF.
867    o extended iMin,jMin range for calc_common_factors,
868      calc_diffusivity
869    o added option ALLOW_PASSIVE_TRACER
870    o a few minor updates and fixes
871    
872    checkpoint40pre3
873    o created calc_gtr1.F for gad package
874    o split the_main_loop and re-introduced forward_step
875    o some recomputations of nIter0 for TAMC
876    
877    checkpoint40pre2
878    o Updated to latest branch of AJA, JMC
879    o Added gradient check package
880    o Added routines for passive tracer handling
881    o Added carbon sequestration sensitivity experiment
882    
883    checkpoint39
884     o Modifications and fixes to support TAMC
885       (mainly missing or wrong directives)
886     o Corrected common blocks when fooling TAMC to produce adjoint I/O
887       in addummy_in_stepping
888     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
889     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
890     o Included following packages:
891       cal: calendar
892       exf: external forcing
893       ecco: essential routines to control use of cal, exf
894             (NB: this is not the full ECCO environment)
895     o disabled some packages by default in genmake
896    
897    checkpoint38
898     o see notes_c37_adj.txt
899     o corrected wrong layer index in external_forcing_t
900     o replaced the_main_loop/forward_step by the_main_loop
901     o removed forceoutput from write_state
902       (replaced criteria for initial/final state)
903     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
904    
905    checkpoint37
906     o mdsio.F routine split and packaged in pkg/mdsio
907       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
908        used unless genmake -disable=mdsio)
909     o allow a more precise surface-geopotential gradient for the atmosphere
910       taking into account the change in space of Alpha (=1/rho) at the surface.
911     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
912       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
913     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
914       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
915       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
916     o Time-Average diagnostics defined as a pseudo package "timeave".
917     o pickup files : old pickup (before c35) did not work with new code (c35
918       and after) unless activating 2 commented lines in initialise-varia.
919     o Non-Hydrostatic pickup file Pb fixed.
920     o bug with Rigid-lid version (since c35) fixed.  
921    
922    checkpoint36
923     o implement Crank-Nickelson barotropic time-stepping
924     o recover Time-Average diagnostics
925     o fix Pb in checkpoint (PR#19)
926     o AIM become a standard package ; clean unused CPP_kees
927    
928    checkpoint35
929     o subtantial rewrite of dynamics.f
930     o allows staggered time-stepping
931     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
932     o added bottom drag (linear + quadratic)
933    
934    checkpoint34
935     o Modified exchange routines for correct reverse simulation.
936     o Added verification output to comply with bug fix in impldiff.F
937       as of c33 (exp2, natl_box).
938     o Corrected store directives in dynamics.F
939     o Corrected array boundaries in impldiff.F
940     o Corrected array dimensions in gmredi.
941       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
942     o Added routine GLOBAL_SUM_INT to global_sum.F
943     o Added mdsio_gl.F for ECCO purposes.
944    
945    checkpoint33
946     o Fixed bug in lower BC in impldiff.F
947     o Fixed confusion about units of forcing arrays in FFIELDS.h
948       namely Fu,Fv,Qnet,Qsw,EmPmR:
949       - Removed verification/natl_box/code/external_fields_scale.F
950         (did not differ from that in model/src)
951       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
952         (see FFIELDS.h for description)
953       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
954         kpp_calc.F and kpp_transport_t.F
955       - Removed model/src/external_fields_scale.F and calls to it
956       - verification/natl_box uses flux data with "atmospheric" sign so
957         a special version of external_fields_load.F is used to
958         change the data as it's read in. This way, the arrays
959         have the right units and signs at all times tha a user could
960         possibly use them.
961     o Corrected genmake to delete a temporary file during configuration
962    
963    checkpoint32
964     o Scaling of forcing fields moved from external_forcing.F to
965       external_fields_scale.F, called directly after loading fields.
966     o Surface relaxation terms added to surface tendency fields in
967       extra subroutine.
968     o impldiff.F changed to avoid storing by TAMC of huge intermediate
969       fields.
970     o Changes in GMRedi to comply with packaging structure.
971     o Modifications and bug fixes in KPP package.
972     o Verification experiment for KPP added (verification/nat_box/)
973    
974    checkpoint31
975     o Packages interface brought in line with defined standard
976       -> new routines packages_...F
977       -> changes in initialise_fixed.F, initialise_varia.F
978       -> enables initialisation interface for ECCO package
979     o Rescaling of external forcing fields immediately after read
980       (removed from external_forcing.F)
981       -> new: surface_fields_scale.F
982       -> affects ini_foorcing.F, external_fields_load.F
983     o Computation of surface tendencies before tendency updates.
984       -> new: external_forcing_surf.F
985     o Change of variable names useGMRedi, useKPP, useECCO
986     o Further changes in dynamics.F, impldiff.F for TAMC
987     o Tested for experiments 0, 2, 4.
988       - not yet tested for GMRedi.
989       - not yet tested for KPP.
990    
991  checkpoint30  checkpoint30
992   o Updates for OBCs   o Updates for OBCs
993   o New experiment for test OBCs (internal_wave)   o New experiment for test OBCs (internal_wave)

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