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revision 1.20 by adcroft, Tue May 18 15:43:59 1999 UTC revision 1.150 by dimitri, Wed Apr 30 07:04:08 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint50c_pre
7    Merging from release1_p13:
8    o bug fix for pkg/seaice dynamic solver
9    o Added SEAICE_initialHEFF to pkg/seaice
10    
11    checkpoint50b_post
12    o store u*,v* in gU,V instead of in guNm1,gvNm1
13    o in order to put the momForcing out of the Adams-Bashforth:
14      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
15      to timestep.F
16    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
17    o re-generate output for highly sensitive test-exp:
18       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
19    
20    checkpoint50b_pre
21    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
22    o corrected CPP option mismatch in exf_Bulk... functions for case
23      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
24    
25    checkpoint50a_post
26    o Bug fix for merging between c50 and KPP.
27      ikey was passed from thermodynamics to kpp_calc via
28      common block rather than being recomputed in kpp_calc,
29      in contradiction with new key itdkey.
30      New key ikppkey created, and tamc.h headers updated.
31    
32    checkpoint50
33    - 2nd step of merge with ecco-branch:
34      merge changes in ecco-branch back into main trunk
35    - bug fix in find_alpha
36    - more storing in gmredi_calc_tensor.F, kpp_routines.F
37    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
38    - merged some sliced AD support routines
39    
40    checkpoint49
41    merged from ecco-branch:
42    o exf:
43      - Enable initialisation of forcing fields to constant
44        (runtime) values.
45      - in exf_getffields.F
46        Reduce i-/j-loop to interior domain, discarding overlaps.
47        That also fixes wrong TAF-key computations for key_1, key_2
48        with bulf formulae.
49      - exf_init.F modify #ifdef for exf_init_evap
50      - exf_getffieldrec.F, ctrl_getrec.F
51        The following INT-usages are not safe:
52          fldsecs  = int(fldsecs/fldperiod)*fldperiod
53          fldcount = int(fldsecs/fldperiod) + 1
54        and were modified.
55    o autodiff: checkpoint_lev...
56      - updated storing for bulk formulae (some arrays were missing)
57      - added state for seaice package
58      - synchronized with main branch
59    o DIVA:
60      Modif.s in
61      - the_main_loop.F
62      - the_model_main.F
63      and added cost_final_restore.F cost_final_store.F
64      o With these changes, it is possible to fully separate
65        the first forward run to compute the cost function (mdthe_main_loop)
66        and adjoint runs over individual DIVA intervals (adthe_main_loop)
67        into separate model executions.
68        This enables better tuning of DIVA to given queue sizes.
69      o Loss of cost function value in consecutive DIVA runs is
70        fixed by storing to 'costfinal' file.
71      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
72        beginning/end of adjoint integration is accounted for.
73      The current changes apply to TAF-1.4.26.
74      TAF has one remaining bug, requiring one manual change
75      (see MITgcm manual).
76    o cal: synchronized between MAIN and ecco-branch
77    
78    checkpoint48i_post
79    o Changes to restore differentiability of code w.r.t. previous tag
80      (mostly adding new routines to make list and replacing
81      pressure by totPhiHyd).
82    o Updated and merged grdchk package
83      - has both ADM and TLM checks
84      - works for single- and multi-proc.
85      - output cleaned
86      - worked successfully for parallel DIVA
87    o genmake:
88      - Adding -platform=SP4
89      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
90    o Modif. for DIVA:
91      ctrl_unpack should not be called in intermediate DIVA interval.
92      (similar thing would apply for active files such as
93      tbar, sbar, psbar, which should not be reinitialised;
94      only relevant for ecco-branch)
95    
96    checkpoint48h_post
97    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
98    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
99    o Added SEAICE_initialHEFF to pkg/seaice
100    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
101    
102    checkpoint48g_post
103    --- EOS:
104    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
105      store total Potential in totPhyHyd for diagnostics & EOS.
106    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
107    --- Pressure/geopotential gradient:
108    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
109    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
110      ( changes results of global_ocean_pressure )
111    o NLFS + z-coord.: add eta*Rho' contribution.
112    o accurate phiHyd when using interface-W at the middle between 2 centers
113     ( changes results of ideal_2D_oce )
114    o includes r* 2nd term in potential gradient.
115    
116    checkpoint48f_post
117    Merging from release1_p12:
118    o Modifications for using pkg/exf with pkg/seaice
119      - improved description of the various forcing configurations
120      - added basic radiation bulk formulae to pkg/exf
121      - units/sign fix for evap computation in exf_getffields.F
122      - updated verification/global_with_exf/results/output.txt
123    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
124      (SBO) core products, including oceanic mass, center-of-mass,
125      angular, and bottom pressure (see pkg/sbo/README.sbo).
126    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
127      to avoid negative values in shallow regions.
128      - updated verification/natl_box/results/output.txt
129      - updated verification/lab_sea/results/output.txt
130    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
131    o Added useSingleCpuIO option (see PARAMS.h).
132    o Updated useSingleCpuIO option in mdsio_writefield.F to
133      work with multi-field files, e.g., for single-file pickup.
134    o pkg/seaice:
135      - bug fix in growth.F: QNET for no shortwave case
136      - added HeffFile for specifying initial sea-ice thickness
137      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
138    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
139      kpp_transport_t.F, forward_step.F, and the_main_loop.F
140    o pkg/seaice:
141      - adjoint-friendly modifications
142      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
143    
144    checkpoint48e_post
145    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
146    o dynamics: change definition of computational domain & adapt mom_fluxform
147      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
148    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
149        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
150        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
151        global_ocean.90x40x15 global_with_exf global_ocean_pressure
152        inverted_barometer solid-body.cs-32x32x1
153      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
154    
155    checkpoint48d_post
156    o in preparation for r*:
157     a) use pre-computed gradient of hydrostatic potential:
158        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
159     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
160        => affects results of glob_oce_pressure (different truncation error)  
161      update output.txt of ideal_2D_oce & global_ocean_pressure
162    
163    checkpoint48d_pre
164    o in preparation for r*:
165      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
166      pass the 2 comp. of the grad. as arguments to momentum S/R.
167      but for the moment, only used if it does not change the results.
168    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
169    
170    checkpoint48c_post
171    Modifications in treatment of initial flux forcing controls
172    to avoid extra storing of flux fields.
173    
174    checkpoint48c_pre
175    o Added tidal_basin_2d experiment (currently 1D!)
176    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
177    
178    checkpoint48b_post
179    o r* coordinate added in #ifdef NONLIN_FRSURF block.
180     (modification to pressure gradient not yet implemented)
181    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
182      (for U & V) that are used for vertical advection of momentum.
183    
184    checkpoint48a_post
185    o In preparation for r*, use temp. array to compute vertical transport
186       in flux-form momentum pkg. => change results of few test-exp.
187      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
188                        lab_sea, natl_box & plume_on_slope
189    
190    checkpoint48
191    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
192    
193    checkpoint47j_post
194    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
195    o moved adexch from forward_step to addummy_in_stepping
196    o added exch in ctrl_map_...
197    o aveFreq.=0. at end of cost_final to avoid overwrite in
198      reverse checkpointing loop
199    o Yet more changes in gmredi:
200      * adgmredi_calc_tensor
201        avoiding all recomputation of gmredi_slope_limit
202      * adgmredi_x/y/rtransport
203        added flag for excessive storing to avoid recomp. of
204        u/v/rtans, dTdx/y/z
205        -> this is not really necessary and very memory-consuming
206      * adgmredi_slope_psi:
207        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
208      * gmredi_slope_limit
209        re-activated full calculation of taperfct for case 'ac02'
210    o updating verification/ adjoints of carbon, global_ocean.90x40x15
211    
212    checkpoint47i_post
213    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
214    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
215      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
216    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
217    o gmredi: fix few bugs.
218    
219    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
220    This will be a good checkpoint to plug into the ecco-branch.
221    o few modif.'s to get latest version adjointed
222      (mainly kick out code in ini_linear_phisurf)
223    o modif's to run adjoint with exactConserv
224    o case GM_BOLUS_ADVEC should be cleaned
225      S/R gmredi_slope_psi should be cleaned
226    o verification/carbon now has exactConserv=.TRUE.
227    
228    checkpoint47g_post
229    o time-average AIM output: becomes independent from statvars time-average
230      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
231    o After TAF bug fix:
232      Tested adjoint of gmredi package.
233      Tests were done with checkpoint47 rather than with latest
234      checkpoint47f_post since the latter is broken for the adjoint
235      verification/carbon/ contains both ADM and TLM gradient checks.
236    Here they are, before they get changed/lost/stolen.
237    Mostly modif.'s to fix numerical sensitivities.
238    Gradient checks OK for
239    - GM_taper_scheme:
240      * clipping
241      * ac02
242      * linear
243      * glw91
244      * dm95
245      * ldd97
246    - GMREDI_OPTIONS:
247      * GM_VISBECK_VARIABLE_K
248      * GM_NON_UNITY_DIAGONAL
249      * GM_EXTRA_DIAGONAL
250      * GM_BOLUS_ADVEC
251    in conjunction with data.gmredi parameters to be checked in
252    in a few minutes under verification/carbon/code/
253    
254    checkpoint47f_post
255    Merging from release1_p10:
256    o modifications for using pkg/exf with pkg/seaice
257      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
258        and SEAICE_EXTERNAL_FLUXES
259      - pkg/exf CPP options EXF_READ_EVAP and
260        EXF_NO_BULK_COMPUTATIONS
261      - usage examples are Experiments 8 and 9 in
262        verification/lab_sea/README
263      - verification/lab_sea default experiment now uses
264        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
265    
266    checkpoint47e_post
267    o created a tag prior to creating a branch
268    
269    checkpoint47d_post
270    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
271      at the bottom boundary had an erroneous half slip boundary condition
272    o added bottom drag and no slip boundary condition capabilities to
273      oceanic pressure coordinates code
274    o added new verification experiment global_ocean_pressure, this experiment is
275      also described in the tutorial section of the manual
276    checkpoint47d_pre
277    
278    checkpoint47c_post
279    o Added a verification experiment for a global cubed-sphere ocean run
280      -  verification/global_ocean.cubed32x32x30
281      -  uses pkg/therm_seaice and pkg/bulk_forcing
282    
283    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
284    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
285      when using P-coordinate; only implemented for atmospheric config.
286    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
287      NOTES: requires option NONLIN_FRSURF to be "#define".
288    o update advect_xz/results/output.txt (left from checkpoint44g_post)
289    
290    checkpoint47b_post
291    Merging from release1_p9:
292    o pkg/seaice
293      - removed GOTO's and added taf directives
294      - double precision constants to reduce the g77 (Linux)
295        to F77 (SGI) differences reported in release1_p8
296    o tools/genmake
297      - added SGI options
298    o verification/testscript
299      - updated to that of checkpoint47a_post
300    o verification/global_ocean.90x40x15/input/eedata
301      - modified for SGI f77 compatibility
302    o verification/lab_sea
303      - added description of sea-ice model
304      - added missing matlab routines
305      - added test of thermodynamics parallelization
306    
307    checkpoint47a_post
308    o new pkg: aim_v23
309     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
310       for now, keep the same surface forcing as before.
311     - Part-Cell implemented into AIM; check that Heat & Water are conserved
312     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
313     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
314    o add diagnostic of surface correction term in monitor output
315    
316    o bulk_force and therm_seaice
317    - Two packages:  bulk_force (Bulk forcing)
318      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
319    - Earlier integration from Stephaine Dutkiewicz
320      and Patrick Heimbach.
321    - Two ifdef statements for compile time,
322       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
323    
324    checkpoint47
325    differentiable version of checkpoint46n_post
326    o bug fix in quasihydrostaticterms
327    o * "clean" adjoint code (in terms of extensive recomputations)
328        can now be obtained for all GMREDI options (i.e. for
329        - GM_VISBECK_VARIABLE_K
330        - GM_NON_UNITY_DIAGONAL
331        - GM_EXTRA_DIAGONAL
332        - GM_BOLUS_ADVEC )
333      * However, wrong gradient check problem remains unsolved.
334      * New CPP options have been introduced for different
335        tapering schemes
336    o external_fields_load now part of differentiation list
337    o pressure needs multiple storing;
338      would be nice to have store_pressure at beginning or
339      end of forward_step, e.g. by having phiHyd global (5-dim.)
340      (NB: pressure is needed for certain cases in find_rho,
341      which is also invoked through convective_adjustment).
342    o recomputations in find_rho for cases
343     'JMD95'/'UNESCO' or 'MDJWF' are OK.
344    o #define ATMOSPHERIC_LOADING should be differentiable
345    o ini_forcing shifted to begining of initialise_varia
346    o Incorporating QNVS line search routines into MITgcm
347      (this is separate code, and therefore not under pkg)
348      lsopt/, optim/
349    o Updated verification/carbon/
350      - #define GM_VISBECK_VARIABLE_K
351      - GM_taper_scheme    = 'ldd97'    
352    
353    checkpoint46n_post
354    Merging from release1_p8:
355    o verification/natl_box:
356      updating new external_fields_load routine
357    o New package: pkg/seaice
358      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
359      The sea-ice code is based on Hibler (1979-1980).
360      Two sea-ice dynamic solvers, ADI and LSR, are included.
361      In addition to computing prognostic sea-ice variables and diagnosing
362      the forcing/external data fields that drive the ocean model,
363      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
364      The implied surface heat flux is then stored in variable
365      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
366      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
367      non-local transport term.  Because this call precedes model
368      thermodynamics, temperature under sea-ice may not be "exactly" at
369      the freezing point by the time theta is dumped or time-averaged.
370      N.B.: fairly large differences in accuracy occur across
371            different platforms/compilers; comparison between
372            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
373            generated output gives:
374       T           S           U           V
375      C D M    c        m  s        m  s        m  s        m  s
376      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
377      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
378      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
379    
380      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
381    o GAD:
382      - generated new common blocks to account for call of
383        same gad routines with differing traceridentities
384        (needed to modify tracerIdentity indices in GAD.h)
385      - generated separate common blocks for case useCubedSphereExchange
386        (Department of Futurology)
387      - parameter lists to gmredi_?transport: added tracerIdentity
388      - added new key indices to tamc.h
389    o external_fields_load:
390      - added this routine to TAF list
391      - needed to make some common blocks global and additional storing
392        along the same lines as exf package (checkpoint_lev?_directives.h)
393    o exf:
394      updated external forcing package
395      - bug fixes carried over from ecco-branch
396        (missing OBCS_OPTIONS.h in two routines)
397      - enable easy to use "no forcing".
398      - added exf I/O for atmospheric loading
399      - added exf I/O for runoff data
400      - transfered scaling between exf <-> MITgcm to exf namelist
401    o Adding new verification experiment global_with_exf.
402      This verification experiment is almost identical to the
403      global_ocean.90x40x15 experiment, except that it uses
404      the exf (and cal) package instead of the
405      external_fields_load routine (cf README file).
406    
407    checkpoint46m_post
408    o modified testscript to return -- when there are no lines of "%MON" output
409    o added new flag "quasiHydrostatic" for QH mode
410      and new routine quasihydrostaticterms()
411    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
412      New routine: mom_u_coriolis_nh()
413    o fixed sign of non-hydrostatic metric terms in u and v equations.
414      Depend on correct sign of gravitySign.
415    o added work.pc* to .cvsignore in aim directories using ifc
416    o introduced flag for controllin non-hydrostatic metric terms
417    o removed gravitySign from PARM04
418    o switched to g77/ifc from pgf77 in aim experiments
419    
420    checkpoint46l_post
421    o made convective adjustment work with pressure coordinates:
422     - changed the direction of k-loop in convective_adjustment.F for the
423       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
424     - adjusted the reference pressure k-index in convective_adjustment.F
425     - adjusted the convection condition in convect.F (in analogy to
426       calc_ivdc.F)
427     - convective_adjustment no longer computes anything on the halos
428     - removed the warnings about negative salinity from find_rho.F and
429       find_alpha.F; instead the new routine look_for_neg_salinity, called
430       at the beginning of find_rho, find_alpha, and find_beta, does a
431       check of the entire slice, if CPP-option
432       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
433    checkpoint46l_pre
434    
435    checkpoint46k_post
436    o fixed the verification/global_ocean.90x40x15 experiment:
437     - new bathymetry (the world according to A., JMC, and M.)
438     - new initial fields and forcing fields (*.bin files)
439     - new POLY3.COEFFS (for the next release one should switch to a full
440       equation of state: JMD95P or MDJWF)
441     - fixed several errors and redundancies in the data file
442     - experiment uses looped cells
443     - added matlab directory with diagnostic scripts for plotting of output
444    
445    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
446     - read AIM physics parameters from a file (data.aimphys)
447     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
448    
449    checkpoint46j_post
450    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
451    o move wVel computation at the end of the time step, in S/R integr_continuity
452    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
453    o update timeave pkg for wVel diagnostic.
454    checkpoint46j_pre
455    
456    checkpoint46i_post
457    o Clean up AIM package (and keep the results unchanged):
458      include CPP_OPTION and use IMPLICT NONE in all routines ;
459      declare all the variables _RL ; use _d 0 for all numerical constants.
460      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
461    
462    checkpoint46h_post
463    o cleaned up the use of rhoNil and rhoConst.
464      - rhoNil should only appear in the LINEAR equation of state, everywhere
465        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
466        and the dynamical equations are all divided by rhoConst
467    o introduced new parameter rhoConstFresh, a reference density of fresh
468      water, to remove the fresh water flux's dependence on rhoNil. The default
469      value is 999.8 kg/m^3
470    o cleanup up external_forcing.F and external_forcing_surf.F
471      - can now be used by both OCEANIC and OCEANICP
472    checkpoint46h_pre
473    
474     Added code to convert surface volume flux (fresh water) into
475     a mass flux when using P coordinates in the ocean (OCEANICP).
476     Note: It assumes you have set rho0=rhoConst=density of fresh water.
477    
478    checkpoint46g_post
479    o Include a new diagnostic variable phiHydLow for the ocean model
480      - in z-coordinates, it is the bottom pressure anomaly
481      - in p-coordinates, it is the sea surface elevation
482      - in both cases, these variable have global drift, reflecting the mass
483        drift in z-coordinates and the volume drift in p-coordinates
484      - included time averaging for phiHydLow, be aware of the drift!
485    o depth-dependent computation of Bo_surf for pressure coordinates
486      in the ocean (buoyancyRelation='OCEANICP')
487      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
488        Theta, Salinity, and Pressure in the parameter list. This routine is
489        presently contained in find_rho.F. This routine does not give the
490        correct density for 'POLY3', which would be a z-dependent reference
491        density.
492    o cleaned up find_rho
493      - removed obsolete 'eqn' from the parameter list.
494    o added two new verification experiments: gop and goz
495      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
496    checkpoint46g_pre
497    
498    checkpoint46f_post
499    o Enable tangent linear (forward mode) gradient checks:
500      - extended active file handling to g_... files
501      - added TANGENT_SIMULATION to theSimulationMode
502      - extended grdchk package accordingly
503    o added tangent linear setup in verification/carbon/code_ftl
504    o added adjoint setup in verification/front_relax/code_ad
505    
506    checkpoint46e_post
507    o Added new equation of state -> MDJWF
508      - EOS of McDougall et al., 2002, JAOT, submitted
509      - caveat: the equation of state is only valid for a smaller (more
510        realistic?) range of values than JMD95P/Z and UNESCO
511      - added masks to the calculation of pressure in store_pressure
512      - added more check values for density in check_eos (ini_eos.F), some of
513        the old check values are out of the range of the MDJWF-eos, so don't
514        expect perfect matches for those
515    checkpoint46e_pre
516    
517    checkpoint46d_post
518    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
519      'OCEANICP', also initialised field pressure correctly in ini_eos in the
520      case of pressure coordinates. eosType='JMD95Z' in
521      combination with buoyancyRelation='OCEANICP' now causes an error.
522    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
523      in find_alpha/beta.
524    checkpoint46d_pre
525    
526    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
527      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
528    
529    checkpoint46c_post
530    o Changes necessary for ocean in p-coordinates
531     -  Added new buoyancy relation = 'OCEANICP'
532     -  Added new parameters = gravitySign (this used to be contained inside
533        the factor dRdZ which I added when we first switched to R coordinates).
534     X GM/Redi is not compatible (yet)
535     X bottom drag and no-slip need to be debugged.
536    checkpoint46c_pre
537    
538    checkpoint46b_post
539    o Added new equation of state -> JMD95Z and JMD95P
540      - EOS of Jackett and McDougall, 1995, JAOT
541      - moved all EOS parameters into EOS.h
542      - new routines ini_eos.F, store_pressure.F
543    o Added UNESCO EOS, but not recommended because it requires
544      in-situ temperature (see JMD95)
545    o Modified formatting for knudsen2.f in utils/knudsen2 and added
546      unesco.f to be used with POLY3
547    checkpoint46b_pre
548    
549    checkpoint46a_post
550    o Added (atmospheric) pressure loading
551      - new field in FFIELDS.h, etc...
552      - new cpp flag ATMOSPHERIC_LOADING
553    o Changed hFacC to _hFacC in calc_phi_hyd.F
554    o Added SHORTWAVE_HEATING to some files for consistency
555    checkpoint46a_pre
556    
557    checkpoint46
558    further merges from release1_p5
559    o new ctrl package
560      - adopted from ECCO environment to enable optimization
561      - added Eliassen Palm fluxes to controls
562    o added Eliassen Palm flux controls to gradient check package
563    o cost package
564      - Compatible with new ctrl package
565      - added Eliassen Palm cost hooks
566      - modif's of existing cost functions
567    o Adjoint-related bug fixes in kpp:
568      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
569      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
570    o autodiff package
571      - flow directives:
572        + new for S/R do_the_model_io
573        + enhanced for S/R checkpoint
574        + new gmredi.flow
575      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
576        disable adcommon.h/g_common.h by default.
577      - fixed problem for adjoint of global_max
578    o modified verification/carbon/
579    o New setup for adjoint of global_ocean
580    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
581    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
582    o incorporated hooks for sponge layer code (external_forcing.F)
583    
584    checkpoint45d_post
585    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
586    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
587      (affects plume_on_slope "cg2d" output)
588    o add new parameter deltaTfreesurf for free-surface time stepping
589    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
590    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
591    o change phiMin in exp1 (to agree with documentation)
592    o add new flags:
593     - T,S forcing inside/outside Adams-Bashforth
594     - turn off temp,salt advection and/or forcing
595     - for each tracer, define internal flag for multiDimAdvection & A-B
596    o monitor: change definition of KE to check conservation of Energy
597    
598    checkpoint45c_post
599    o Removed f90 comments ("!")
600    o Modified initialisations to enable exf package for MITgcm
601      (without invoking ECCO_PACKAGE).
602    o modifications to gradient check package (Martin Losch)
603      - enable centered differences
604      - modified format of standard output
605    
606    checkpoint45b_post
607    o cleaned exchange calls in cg2d
608    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
609    o included CPP option SINGLE_LAYER_MODE in thermodynamics
610      to configure barotropic setup (Martin Losch)
611    o moved some initialisations within bi,bj loop in dynamics
612      (TAF flow dependency)
613    o in initialise_varia, moved call packages_init_variables
614      before convective_adjustment_init
615      (corresponding adjustment of TAF tape initialisation).
616    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
617    
618    checkpoint45a_post
619    o compute Rho over the whole domain (extend iMin,jMin indices)
620    o specific exchange for X-slice domain (case Ny=1)
621    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
622    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
623    
624    checkpoint44h_post = checkpoint45
625    o Fix to restore differentiability:
626      place at which packages_init_variables is called in
627      initialise_varia is crucial for reverse control flow.
628    o modifications in GMRedi to enable stable adjoint
629      (corresponding modif's in thermodynamics, dynamics)
630    o added missing hook for sponge layer code in external_forcing
631    o modified test cost functions
632    o storing in gad_advection (plus removal of write(0,*)!
633    o missing headers TR1.h added in convective_adjustment routines
634    o errorMessageUnit set non-equal zero in eeboot
635      (conflict on some platforms, e.g. IBM SP3)
636    o modified carbon verif.
637    
638    checkpoint44h_pre
639    o vertical grid option: allow to put the Interface at the middle between
640      2 cell-centers ; replace delZ in pkg/kpp by drF.
641    o GM Advective form: Tracers are advected using the residual transport (=
642      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
643    
644    checkpoint44g_post
645    o fix surface correction term in multiDimAdvection (affects plume_on_slope
646      results) ; ifdef missing in thermodynamics.F
647    
648    checkpoint44f_pre,checkpoint44f_post
649    o added PTRACERS package
650      This allows an arbitrary number of passive tracers to be integrated
651      forward simultaneously with the dynamicaly model.
652      + Implemented so far:
653        - basic forward algorithm (time-stepping, advection, diffusion, convection)
654        - I/O and checkpointing
655        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
656      + Not implemented so far:
657        - KPP
658        - OBCS
659      + No specific example supplied (yet) but global_ocean.90x40x15 has the
660        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
661        line in data.pkg.
662      + This package is disabled by default since it increases storage.
663    
664    
665    o testscript: added -cleanup option
666    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
667                 b) enable to filter 2D fields.
668    
669    checkpoint44e_pre,post
670    o re-wrote convective adjustment to use pre-calculated weights
671      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
672      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
673      Original calls to convect() still in place.
674    
675    chkpt44d_pre,post
676    o added missing EXCLUDE_MONITOR flags
677    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
678      (incompatible typ in MIN/MAX expressions caused problems
679      on IBM SP3)
680    o in genmake added variable MAKEDEPEND
681      plus resetting for case SunOS
682    o added timer_stats.c routine for IBM SP3
683    o removed variables in dynamics
684    !!! I forgot to create tag chkpt44d_pre !!!
685    !!! But chkpt44d_pre = chkpt44c_post    !!!
686    
687    o real fresh water flux implemented with non-linear free-surface.
688    
689    chkpt44c_pre,post
690    o few fix (mask in shap_s2, EmPmR in external_field_load,
691      USE_NATURAL_BCS in solve_for_P);
692    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
693    
694    checkpoint44b_pre/_post
695    o merge of relevant stuff from the ecco-branch:
696      - genmake: removed $S64 overwrite for case SunOS
697      - pkg/exf: update and corrections for field swapping and obcs
698      - pkg/ecco: parameter lists for the_model_main, the_main_loop
699                  harmonized between ECCO and MITgcm
700      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
701                      updated checkpointing_lev... lists for obcs
702      - model/src: minor changes in forward_step, plot_field
703                   added directive for divided adjoint in the_main_loop
704      - pkg/mdsio: added mdsio_gl_slice
705    
706    o check parameters & config (chkpt44a_pre,post)
707    o OBC and NonLin_FrSurf.
708    
709    checkpoint44
710    o fix bug in mom_vi_del2uv
711    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
712    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
713    o update AIM experiments (NCEP input files)
714    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
715    o added some stuff for AD
716    
717    checkpoint43
718    o added two new advection tests
719    o added global 4x4 degree ocean test
720    o added test of H&S94 with free surface on cube
721    o some final mods for gradient check, adjoint,...
722    
723    checkpoint42
724      Fixed AD-related problems:
725    o Store directives up-to-date with re-arranged Adams-Bashforth
726      (mainly thermodynamics.F)
727    o New store directives for multi-dim. advection schemes
728      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
729      * new common block and key passkey
730      (mainly gad_advection.F)
731    o Modified store directives for split of dynamics/thermodynamics
732      for the case ALLOW_KPP
733    o Cleaned argument list for timestep_tracer.F
734    
735    checkpoint41
736    o re-formatted/added comments in prologues of key subroutines
737      to work with protex
738    
739    checkpoint40
740    o moved calc_gs, calc_gt and calc_tr1 back to model/src
741    o added FLT (floats) package from Arne along with demo. experiment
742    o re-arranged Adams-Bashforth scheme for tracers to allow easier
743      implementation of forward-in-time forcing terms
744    o more mods for non-linear free-surface including new variable
745    o modified multi-dim method to work on cube
746    o bug fix in KPP (from DM)
747    
748    checkpoint40pre9
749    o added DST advection schemes
750    o fix MPI bug on SGI's
751    o modifications for non-linear free-surface
752    o fixed conditionals for fixed flow/passive tracer only mode
753    o added tension/strain form of stress tensor
754    o changes to commenting of arguments for TAF/TAMC
755    o added/updated many matlab scripts
756    o added multi-dimensional advection method for tracers
757      
758    checkpoint40pre8
759    o new package rw/
760      Added method for dumping intermediate local arrays:
761      mdsio_writetile - same as mdsio_writefield except works from inside
762                        bi,bj loop
763      mdsio_writelocal - same as mdsio_writetile except works for local
764                         arrays
765      write_local_r? - higher-level wrapper for mdsio_writelocal
766      Controlled by diagFreq. Defaults to zero (ie. no dumps)
767      Example given at end of mom_vecinv.F that dumps some local arrays.
768    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
769      control flux-form versus vector invariant code.
770      Switch is runtime flag vectorInvariantMomentum (defaults to false)
771      or genmake -DISABLE ...
772    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
773      (additional storing is now needed for case vecinv;
774      currently nothing implemented to switch this storing off
775      in case fluxform is used since no CPP flag available).
776    
777    checkpoint40pre7
778    o bug fix in dynamics.F
779      calc_viscosity called before k=1,Nr loop.
780    o added some #ifdef's ALLOW_PASSIVE_TRACER
781    o cleaned initialisations in ctrl_map_ini
782      related to TAF
783    
784    checkpoint40pre6
785    o split dynamics into thermodynamics & dynamics
786    o corresponding split of calc_diffusivity into
787      calc_diffusivity, calc_viscosity
788      (kpp_calc_diff, kpp_calc_visc).
789    o Added diffkr, kapgm to control variables
790    o bug fix in gmredi_slope_limit for ldd97
791    
792    checkpoint40pre5
793    o proper initialization of Adams-Bashforth time stepping
794      + uses forward step for very first step of model (iter=0)
795    o re-generated *all* output since almost all output is modified by this
796      change (sorry but we've been putting this one off for about 2 years)
797      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
798        *not* regenerated since they are already out of date and I don't
799        want to create the impression that they are suddenly working.
800    o removed KAP stuff for DEC's
801    o modified/added many .cvsignore files in */code and */input
802    o added new expt "solid-body.cs-32x32x1"
803      + this uses an alternative form of ini_curvilinear_grid.F which
804        is not necessarily any better than the current one...
805    
806    checkpoint40pre4
807    o added re-initialisations of utrans,vtrans,rtrans in
808      calc_common_factors which are crucial for TAF.
809    o extended iMin,jMin range for calc_common_factors,
810      calc_diffusivity
811    o added option ALLOW_PASSIVE_TRACER
812    o a few minor updates and fixes
813    
814    checkpoint40pre3
815    o created calc_gtr1.F for gad package
816    o split the_main_loop and re-introduced forward_step
817    o some recomputations of nIter0 for TAMC
818    
819    checkpoint40pre2
820    o Updated to latest branch of AJA, JMC
821    o Added gradient check package
822    o Added routines for passive tracer handling
823    o Added carbon sequestration sensitivity experiment
824    
825    checkpoint39
826     o Modifications and fixes to support TAMC
827       (mainly missing or wrong directives)
828     o Corrected common blocks when fooling TAMC to produce adjoint I/O
829       in addummy_in_stepping
830     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
831     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
832     o Included following packages:
833       cal: calendar
834       exf: external forcing
835       ecco: essential routines to control use of cal, exf
836             (NB: this is not the full ECCO environment)
837     o disabled some packages by default in genmake
838    
839    checkpoint38
840     o see notes_c37_adj.txt
841     o corrected wrong layer index in external_forcing_t
842     o replaced the_main_loop/forward_step by the_main_loop
843     o removed forceoutput from write_state
844       (replaced criteria for initial/final state)
845     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
846    
847    checkpoint37
848     o mdsio.F routine split and packaged in pkg/mdsio
849       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
850        used unless genmake -disable=mdsio)
851     o allow a more precise surface-geopotential gradient for the atmosphere
852       taking into account the change in space of Alpha (=1/rho) at the surface.
853     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
854       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
855     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
856       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
857       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
858     o Time-Average diagnostics defined as a pseudo package "timeave".
859     o pickup files : old pickup (before c35) did not work with new code (c35
860       and after) unless activating 2 commented lines in initialise-varia.
861     o Non-Hydrostatic pickup file Pb fixed.
862     o bug with Rigid-lid version (since c35) fixed.  
863    
864    checkpoint36
865     o implement Crank-Nickelson barotropic time-stepping
866     o recover Time-Average diagnostics
867     o fix Pb in checkpoint (PR#19)
868     o AIM become a standard package ; clean unused CPP_kees
869    
870    checkpoint35
871     o subtantial rewrite of dynamics.f
872     o allows staggered time-stepping
873     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
874     o added bottom drag (linear + quadratic)
875    
876    checkpoint34
877     o Modified exchange routines for correct reverse simulation.
878     o Added verification output to comply with bug fix in impldiff.F
879       as of c33 (exp2, natl_box).
880     o Corrected store directives in dynamics.F
881     o Corrected array boundaries in impldiff.F
882     o Corrected array dimensions in gmredi.
883       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
884     o Added routine GLOBAL_SUM_INT to global_sum.F
885     o Added mdsio_gl.F for ECCO purposes.
886    
887    checkpoint33
888     o Fixed bug in lower BC in impldiff.F
889     o Fixed confusion about units of forcing arrays in FFIELDS.h
890       namely Fu,Fv,Qnet,Qsw,EmPmR:
891       - Removed verification/natl_box/code/external_fields_scale.F
892         (did not differ from that in model/src)
893       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
894         (see FFIELDS.h for description)
895       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
896         kpp_calc.F and kpp_transport_t.F
897       - Removed model/src/external_fields_scale.F and calls to it
898       - verification/natl_box uses flux data with "atmospheric" sign so
899         a special version of external_fields_load.F is used to
900         change the data as it's read in. This way, the arrays
901         have the right units and signs at all times tha a user could
902         possibly use them.
903     o Corrected genmake to delete a temporary file during configuration
904    
905    checkpoint32
906     o Scaling of forcing fields moved from external_forcing.F to
907       external_fields_scale.F, called directly after loading fields.
908     o Surface relaxation terms added to surface tendency fields in
909       extra subroutine.
910     o impldiff.F changed to avoid storing by TAMC of huge intermediate
911       fields.
912     o Changes in GMRedi to comply with packaging structure.
913     o Modifications and bug fixes in KPP package.
914     o Verification experiment for KPP added (verification/nat_box/)
915    
916    checkpoint31
917     o Packages interface brought in line with defined standard
918       -> new routines packages_...F
919       -> changes in initialise_fixed.F, initialise_varia.F
920       -> enables initialisation interface for ECCO package
921     o Rescaling of external forcing fields immediately after read
922       (removed from external_forcing.F)
923       -> new: surface_fields_scale.F
924       -> affects ini_foorcing.F, external_fields_load.F
925     o Computation of surface tendencies before tendency updates.
926       -> new: external_forcing_surf.F
927     o Change of variable names useGMRedi, useKPP, useECCO
928     o Further changes in dynamics.F, impldiff.F for TAMC
929     o Tested for experiments 0, 2, 4.
930       - not yet tested for GMRedi.
931       - not yet tested for KPP.
932    
933    checkpoint30
934     o Updates for OBCs
935     o New experiment for test OBCs (internal_wave)
936     o New output.txt in verification/exp4/results/
937     o Updates for KPP: calculation of viscosity corrected, new variables
938       kpp_dumpFreq and kpp_taveFreq
939     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
940       and entry for T90 in genmake
941    
942    checkpoint29
943     o packaged KPP and GM/Redi
944    
945    checkpoint28
946     o Corrected initialization of hFacMin for difference vertical coordinates
947     o Modified calculation of partial cell thickness to more robust algorithm
948     o config_summary.F: replaced write_1D_... by write_0D_...
949       read_write.F: added subroutines write_0D_...
950     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
951       included some initialisations required for TAMC.
952     o routine calc_isoslopes: modified sqrt computation to make it
953       differentiable for zero argument.
954     o routines dynamics, impldiff:
955       included store directives and tape key computations required for TAMC.
956     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
957    
958    checkpoint27
959     o fixed calc_isoslopes() to so that cancellation of terms in tensor
960       formulation works properly with variable resolution.
961     o restructured the calling tree between the_model_main() and dynamics()
962     o split initialise() into initialise_fixed() and initialise_varia()
963     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
964       in new routine ini_psurf()
965    
966    checkpoint26
967     o moved some #ifdef in optional routines to encompass everything
968       except the argument declarations. This was using up some memory.
969     o fixed macros like _ADT to work with both versions of Linux cpp
970     o cleaned up some unused and uninitialized variables
971       (helps when debugging with strict compile options)
972     o split up CPP_EEOPTIONS.h into options and macros
973       (macros are now in eesupp/inc/CPP_EEMACROS.h)
974     o patch for 2 processor JAM mode
975    
976    checkpoint25
977     o updates for OBCs and NH
978     o dramatically reduced memory usage
979     o added "JAM" routines for use on Artic network
980     o parameterization of convection by implicit vertical diffusion
981     o added a diagnostic of convective index
982     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
983       (this is was partly for OBCs and NH but also in anticipation of
984        an explicit free-surface option)
985     o initial state input files for U and V
986    
987    checkpoint24
988     o Removed some spurious "REAL"s
989     o Updated KPP to latest version from JPL
990     o Added a COS(latitude) in horizontal viscosity
991    
992    checkpoint23
993     o Added del^4 diffusion for salt and temperature
994     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
995    
996    checkpoint22
997     o Made many small changes: implicit none, format(i5), etc...
998     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
999    
1000  checkpoint21  checkpoint21
1001   o Introduced new I/O package that supports direct-access records (mdsio.F)   o Introduced new I/O package that supports direct-access records (mdsio.F)
1002   o Split-up mid-level I/O routines   o Split-up mid-level I/O routines

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