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revision 1.12 by cnh, Fri Jul 17 02:25:15 1998 UTC revision 1.145 by heimbach, Fri Mar 21 23:20:36 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint50a_post
7    o Bug fix for merging between c50 and KPP.
8      ikey was passed from thermodynamics to kpp_calc via
9      common block rather than being recomputed in kpp_calc,
10      in contradiction with new key itdkey.
11      New key ikppkey created, and tamc.h headers updated.
12    
13    checkpoint50
14    - 2nd step of merge with ecco-branch:
15      merge changes in ecco-branch back into main trunk
16    - bug fix in find_alpha
17    - more storing in gmredi_calc_tensor.F, kpp_routines.F
18    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
19    - merged some sliced AD support routines
20    
21    checkpoint49
22    merged from ecco-branch:
23    o exf:
24      - Enable initialisation of forcing fields to constant
25        (runtime) values.
26      - in exf_getffields.F
27        Reduce i-/j-loop to interior domain, discarding overlaps.
28        That also fixes wrong TAF-key computations for key_1, key_2
29        with bulf formulae.
30      - exf_init.F modify #ifdef for exf_init_evap
31      - exf_getffieldrec.F, ctrl_getrec.F
32        The following INT-usages are not safe:
33          fldsecs  = int(fldsecs/fldperiod)*fldperiod
34          fldcount = int(fldsecs/fldperiod) + 1
35        and were modified.
36    o autodiff: checkpoint_lev...
37      - updated storing for bulk formulae (some arrays were missing)
38      - added state for seaice package
39      - synchronized with main branch
40    o DIVA:
41      Modif.s in
42      - the_main_loop.F
43      - the_model_main.F
44      and added cost_final_restore.F cost_final_store.F
45      o With these changes, it is possible to fully separate
46        the first forward run to compute the cost function (mdthe_main_loop)
47        and adjoint runs over individual DIVA intervals (adthe_main_loop)
48        into separate model executions.
49        This enables better tuning of DIVA to given queue sizes.
50      o Loss of cost function value in consecutive DIVA runs is
51        fixed by storing to 'costfinal' file.
52      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
53        beginning/end of adjoint integration is accounted for.
54      The current changes apply to TAF-1.4.26.
55      TAF has one remaining bug, requiring one manual change
56      (see MITgcm manual).
57    o cal: synchronized between MAIN and ecco-branch
58    
59    checkpoint48i_post
60    o Changes to restore differentiability of code w.r.t. previous tag
61      (mostly adding new routines to make list and replacing
62      pressure by totPhiHyd).
63    o Updated and merged grdchk package
64      - has both ADM and TLM checks
65      - works for single- and multi-proc.
66      - output cleaned
67      - worked successfully for parallel DIVA
68    o genmake:
69      - Adding -platform=SP4
70      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
71    o Modif. for DIVA:
72      ctrl_unpack should not be called in intermediate DIVA interval.
73      (similar thing would apply for active files such as
74      tbar, sbar, psbar, which should not be reinitialised;
75      only relevant for ecco-branch)
76    
77    checkpoint48h_post
78    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
79    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
80    o Added SEAICE_initialHEFF to pkg/seaice
81    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
82    
83    checkpoint48g_post
84    --- EOS:
85    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
86      store total Potential in totPhyHyd for diagnostics & EOS.
87    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
88    --- Pressure/geopotential gradient:
89    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
90    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
91      ( changes results of global_ocean_pressure )
92    o NLFS + z-coord.: add eta*Rho' contribution.
93    o accurate phiHyd when using interface-W at the middle between 2 centers
94     ( changes results of ideal_2D_oce )
95    o includes r* 2nd term in potential gradient.
96    
97    checkpoint48f_post
98    Merging from release1_p12:
99    o Modifications for using pkg/exf with pkg/seaice
100      - improved description of the various forcing configurations
101      - added basic radiation bulk formulae to pkg/exf
102      - units/sign fix for evap computation in exf_getffields.F
103      - updated verification/global_with_exf/results/output.txt
104    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
105      (SBO) core products, including oceanic mass, center-of-mass,
106      angular, and bottom pressure (see pkg/sbo/README.sbo).
107    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
108      to avoid negative values in shallow regions.
109      - updated verification/natl_box/results/output.txt
110      - updated verification/lab_sea/results/output.txt
111    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
112    o Added useSingleCpuIO option (see PARAMS.h).
113    o Updated useSingleCpuIO option in mdsio_writefield.F to
114      work with multi-field files, e.g., for single-file pickup.
115    o pkg/seaice:
116      - bug fix in growth.F: QNET for no shortwave case
117      - added HeffFile for specifying initial sea-ice thickness
118      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
119    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
120      kpp_transport_t.F, forward_step.F, and the_main_loop.F
121    o pkg/seaice:
122      - adjoint-friendly modifications
123      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
124    
125    checkpoint48e_post
126    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
127    o dynamics: change definition of computational domain & adapt mom_fluxform
128      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
129    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
130        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
131        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
132        global_ocean.90x40x15 global_with_exf global_ocean_pressure
133        inverted_barometer solid-body.cs-32x32x1
134      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
135    
136    checkpoint48d_post
137    o in preparation for r*:
138     a) use pre-computed gradient of hydrostatic potential:
139        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
140     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
141        => affects results of glob_oce_pressure (different truncation error)  
142      update output.txt of ideal_2D_oce & global_ocean_pressure
143    
144    checkpoint48d_pre
145    o in preparation for r*:
146      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
147      pass the 2 comp. of the grad. as arguments to momentum S/R.
148      but for the moment, only used if it does not change the results.
149    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
150    
151    checkpoint48c_post
152    Modifications in treatment of initial flux forcing controls
153    to avoid extra storing of flux fields.
154    
155    checkpoint48c_pre
156    o Added tidal_basin_2d experiment (currently 1D!)
157    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
158    
159    checkpoint48b_post
160    o r* coordinate added in #ifdef NONLIN_FRSURF block.
161     (modification to pressure gradient not yet implemented)
162    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
163      (for U & V) that are used for vertical advection of momentum.
164    
165    checkpoint48a_post
166    o In preparation for r*, use temp. array to compute vertical transport
167       in flux-form momentum pkg. => change results of few test-exp.
168      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
169                        lab_sea, natl_box & plume_on_slope
170    
171    checkpoint48
172    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
173    
174    checkpoint47j_post
175    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
176    o moved adexch from forward_step to addummy_in_stepping
177    o added exch in ctrl_map_...
178    o aveFreq.=0. at end of cost_final to avoid overwrite in
179      reverse checkpointing loop
180    o Yet more changes in gmredi:
181      * adgmredi_calc_tensor
182        avoiding all recomputation of gmredi_slope_limit
183      * adgmredi_x/y/rtransport
184        added flag for excessive storing to avoid recomp. of
185        u/v/rtans, dTdx/y/z
186        -> this is not really necessary and very memory-consuming
187      * adgmredi_slope_psi:
188        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
189      * gmredi_slope_limit
190        re-activated full calculation of taperfct for case 'ac02'
191    o updating verification/ adjoints of carbon, global_ocean.90x40x15
192    
193    checkpoint47i_post
194    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
195    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
196      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
197    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
198    o gmredi: fix few bugs.
199    
200    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
201    This will be a good checkpoint to plug into the ecco-branch.
202    o few modif.'s to get latest version adjointed
203      (mainly kick out code in ini_linear_phisurf)
204    o modif's to run adjoint with exactConserv
205    o case GM_BOLUS_ADVEC should be cleaned
206      S/R gmredi_slope_psi should be cleaned
207    o verification/carbon now has exactConserv=.TRUE.
208    
209    checkpoint47g_post
210    o time-average AIM output: becomes independent from statvars time-average
211      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
212    o After TAF bug fix:
213      Tested adjoint of gmredi package.
214      Tests were done with checkpoint47 rather than with latest
215      checkpoint47f_post since the latter is broken for the adjoint
216      verification/carbon/ contains both ADM and TLM gradient checks.
217    Here they are, before they get changed/lost/stolen.
218    Mostly modif.'s to fix numerical sensitivities.
219    Gradient checks OK for
220    - GM_taper_scheme:
221      * clipping
222      * ac02
223      * linear
224      * glw91
225      * dm95
226      * ldd97
227    - GMREDI_OPTIONS:
228      * GM_VISBECK_VARIABLE_K
229      * GM_NON_UNITY_DIAGONAL
230      * GM_EXTRA_DIAGONAL
231      * GM_BOLUS_ADVEC
232    in conjunction with data.gmredi parameters to be checked in
233    in a few minutes under verification/carbon/code/
234    
235    checkpoint47f_post
236    Merging from release1_p10:
237    o modifications for using pkg/exf with pkg/seaice
238      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
239        and SEAICE_EXTERNAL_FLUXES
240      - pkg/exf CPP options EXF_READ_EVAP and
241        EXF_NO_BULK_COMPUTATIONS
242      - usage examples are Experiments 8 and 9 in
243        verification/lab_sea/README
244      - verification/lab_sea default experiment now uses
245        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
246    
247    checkpoint47e_post
248    o created a tag prior to creating a branch
249    
250    checkpoint47d_post
251    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
252      at the bottom boundary had an erroneous half slip boundary condition
253    o added bottom drag and no slip boundary condition capabilities to
254      oceanic pressure coordinates code
255    o added new verification experiment global_ocean_pressure, this experiment is
256      also described in the tutorial section of the manual
257    checkpoint47d_pre
258    
259    checkpoint47c_post
260    o Added a verification experiment for a global cubed-sphere ocean run
261      -  verification/global_ocean.cubed32x32x30
262      -  uses pkg/therm_seaice and pkg/bulk_forcing
263    
264    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
265    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
266      when using P-coordinate; only implemented for atmospheric config.
267    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
268      NOTES: requires option NONLIN_FRSURF to be "#define".
269    o update advect_xz/results/output.txt (left from checkpoint44g_post)
270    
271    checkpoint47b_post
272    Merging from release1_p9:
273    o pkg/seaice
274      - removed GOTO's and added taf directives
275      - double precision constants to reduce the g77 (Linux)
276        to F77 (SGI) differences reported in release1_p8
277    o tools/genmake
278      - added SGI options
279    o verification/testscript
280      - updated to that of checkpoint47a_post
281    o verification/global_ocean.90x40x15/input/eedata
282      - modified for SGI f77 compatibility
283    o verification/lab_sea
284      - added description of sea-ice model
285      - added missing matlab routines
286      - added test of thermodynamics parallelization
287    
288    checkpoint47a_post
289    o new pkg: aim_v23
290     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
291       for now, keep the same surface forcing as before.
292     - Part-Cell implemented into AIM; check that Heat & Water are conserved
293     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
294     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
295    o add diagnostic of surface correction term in monitor output
296    
297    o bulk_force and therm_seaice
298    - Two packages:  bulk_force (Bulk forcing)
299      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
300    - Earlier integration from Stephaine Dutkiewicz
301      and Patrick Heimbach.
302    - Two ifdef statements for compile time,
303       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
304    
305    checkpoint47
306    differentiable version of checkpoint46n_post
307    o bug fix in quasihydrostaticterms
308    o * "clean" adjoint code (in terms of extensive recomputations)
309        can now be obtained for all GMREDI options (i.e. for
310        - GM_VISBECK_VARIABLE_K
311        - GM_NON_UNITY_DIAGONAL
312        - GM_EXTRA_DIAGONAL
313        - GM_BOLUS_ADVEC )
314      * However, wrong gradient check problem remains unsolved.
315      * New CPP options have been introduced for different
316        tapering schemes
317    o external_fields_load now part of differentiation list
318    o pressure needs multiple storing;
319      would be nice to have store_pressure at beginning or
320      end of forward_step, e.g. by having phiHyd global (5-dim.)
321      (NB: pressure is needed for certain cases in find_rho,
322      which is also invoked through convective_adjustment).
323    o recomputations in find_rho for cases
324     'JMD95'/'UNESCO' or 'MDJWF' are OK.
325    o #define ATMOSPHERIC_LOADING should be differentiable
326    o ini_forcing shifted to begining of initialise_varia
327    o Incorporating QNVS line search routines into MITgcm
328      (this is separate code, and therefore not under pkg)
329      lsopt/, optim/
330    o Updated verification/carbon/
331      - #define GM_VISBECK_VARIABLE_K
332      - GM_taper_scheme    = 'ldd97'    
333    
334    checkpoint46n_post
335    Merging from release1_p8:
336    o verification/natl_box:
337      updating new external_fields_load routine
338    o New package: pkg/seaice
339      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
340      The sea-ice code is based on Hibler (1979-1980).
341      Two sea-ice dynamic solvers, ADI and LSR, are included.
342      In addition to computing prognostic sea-ice variables and diagnosing
343      the forcing/external data fields that drive the ocean model,
344      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
345      The implied surface heat flux is then stored in variable
346      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
347      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
348      non-local transport term.  Because this call precedes model
349      thermodynamics, temperature under sea-ice may not be "exactly" at
350      the freezing point by the time theta is dumped or time-averaged.
351      N.B.: fairly large differences in accuracy occur across
352            different platforms/compilers; comparison between
353            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
354            generated output gives:
355       T           S           U           V
356      C D M    c        m  s        m  s        m  s        m  s
357      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
358      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
359      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
360    
361      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
362    o GAD:
363      - generated new common blocks to account for call of
364        same gad routines with differing traceridentities
365        (needed to modify tracerIdentity indices in GAD.h)
366      - generated separate common blocks for case useCubedSphereExchange
367        (Department of Futurology)
368      - parameter lists to gmredi_?transport: added tracerIdentity
369      - added new key indices to tamc.h
370    o external_fields_load:
371      - added this routine to TAF list
372      - needed to make some common blocks global and additional storing
373        along the same lines as exf package (checkpoint_lev?_directives.h)
374    o exf:
375      updated external forcing package
376      - bug fixes carried over from ecco-branch
377        (missing OBCS_OPTIONS.h in two routines)
378      - enable easy to use "no forcing".
379      - added exf I/O for atmospheric loading
380      - added exf I/O for runoff data
381      - transfered scaling between exf <-> MITgcm to exf namelist
382    o Adding new verification experiment global_with_exf.
383      This verification experiment is almost identical to the
384      global_ocean.90x40x15 experiment, except that it uses
385      the exf (and cal) package instead of the
386      external_fields_load routine (cf README file).
387    
388    checkpoint46m_post
389    o modified testscript to return -- when there are no lines of "%MON" output
390    o added new flag "quasiHydrostatic" for QH mode
391      and new routine quasihydrostaticterms()
392    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
393      New routine: mom_u_coriolis_nh()
394    o fixed sign of non-hydrostatic metric terms in u and v equations.
395      Depend on correct sign of gravitySign.
396    o added work.pc* to .cvsignore in aim directories using ifc
397    o introduced flag for controllin non-hydrostatic metric terms
398    o removed gravitySign from PARM04
399    o switched to g77/ifc from pgf77 in aim experiments
400    
401    checkpoint46l_post
402    o made convective adjustment work with pressure coordinates:
403     - changed the direction of k-loop in convective_adjustment.F for the
404       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
405     - adjusted the reference pressure k-index in convective_adjustment.F
406     - adjusted the convection condition in convect.F (in analogy to
407       calc_ivdc.F)
408     - convective_adjustment no longer computes anything on the halos
409     - removed the warnings about negative salinity from find_rho.F and
410       find_alpha.F; instead the new routine look_for_neg_salinity, called
411       at the beginning of find_rho, find_alpha, and find_beta, does a
412       check of the entire slice, if CPP-option
413       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
414    checkpoint46l_pre
415    
416    checkpoint46k_post
417    o fixed the verification/global_ocean.90x40x15 experiment:
418     - new bathymetry (the world according to A., JMC, and M.)
419     - new initial fields and forcing fields (*.bin files)
420     - new POLY3.COEFFS (for the next release one should switch to a full
421       equation of state: JMD95P or MDJWF)
422     - fixed several errors and redundancies in the data file
423     - experiment uses looped cells
424     - added matlab directory with diagnostic scripts for plotting of output
425    
426    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
427     - read AIM physics parameters from a file (data.aimphys)
428     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
429    
430    checkpoint46j_post
431    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
432    o move wVel computation at the end of the time step, in S/R integr_continuity
433    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
434    o update timeave pkg for wVel diagnostic.
435    checkpoint46j_pre
436    
437    checkpoint46i_post
438    o Clean up AIM package (and keep the results unchanged):
439      include CPP_OPTION and use IMPLICT NONE in all routines ;
440      declare all the variables _RL ; use _d 0 for all numerical constants.
441      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
442    
443    checkpoint46h_post
444    o cleaned up the use of rhoNil and rhoConst.
445      - rhoNil should only appear in the LINEAR equation of state, everywhere
446        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
447        and the dynamical equations are all divided by rhoConst
448    o introduced new parameter rhoConstFresh, a reference density of fresh
449      water, to remove the fresh water flux's dependence on rhoNil. The default
450      value is 999.8 kg/m^3
451    o cleanup up external_forcing.F and external_forcing_surf.F
452      - can now be used by both OCEANIC and OCEANICP
453    checkpoint46h_pre
454    
455     Added code to convert surface volume flux (fresh water) into
456     a mass flux when using P coordinates in the ocean (OCEANICP).
457     Note: It assumes you have set rho0=rhoConst=density of fresh water.
458    
459    checkpoint46g_post
460    o Include a new diagnostic variable phiHydLow for the ocean model
461      - in z-coordinates, it is the bottom pressure anomaly
462      - in p-coordinates, it is the sea surface elevation
463      - in both cases, these variable have global drift, reflecting the mass
464        drift in z-coordinates and the volume drift in p-coordinates
465      - included time averaging for phiHydLow, be aware of the drift!
466    o depth-dependent computation of Bo_surf for pressure coordinates
467      in the ocean (buoyancyRelation='OCEANICP')
468      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
469        Theta, Salinity, and Pressure in the parameter list. This routine is
470        presently contained in find_rho.F. This routine does not give the
471        correct density for 'POLY3', which would be a z-dependent reference
472        density.
473    o cleaned up find_rho
474      - removed obsolete 'eqn' from the parameter list.
475    o added two new verification experiments: gop and goz
476      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
477    checkpoint46g_pre
478    
479    checkpoint46f_post
480    o Enable tangent linear (forward mode) gradient checks:
481      - extended active file handling to g_... files
482      - added TANGENT_SIMULATION to theSimulationMode
483      - extended grdchk package accordingly
484    o added tangent linear setup in verification/carbon/code_ftl
485    o added adjoint setup in verification/front_relax/code_ad
486    
487    checkpoint46e_post
488    o Added new equation of state -> MDJWF
489      - EOS of McDougall et al., 2002, JAOT, submitted
490      - caveat: the equation of state is only valid for a smaller (more
491        realistic?) range of values than JMD95P/Z and UNESCO
492      - added masks to the calculation of pressure in store_pressure
493      - added more check values for density in check_eos (ini_eos.F), some of
494        the old check values are out of the range of the MDJWF-eos, so don't
495        expect perfect matches for those
496    checkpoint46e_pre
497    
498    checkpoint46d_post
499    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
500      'OCEANICP', also initialised field pressure correctly in ini_eos in the
501      case of pressure coordinates. eosType='JMD95Z' in
502      combination with buoyancyRelation='OCEANICP' now causes an error.
503    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
504      in find_alpha/beta.
505    checkpoint46d_pre
506    
507    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
508      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
509    
510    checkpoint46c_post
511    o Changes necessary for ocean in p-coordinates
512     -  Added new buoyancy relation = 'OCEANICP'
513     -  Added new parameters = gravitySign (this used to be contained inside
514        the factor dRdZ which I added when we first switched to R coordinates).
515     X GM/Redi is not compatible (yet)
516     X bottom drag and no-slip need to be debugged.
517    checkpoint46c_pre
518    
519    checkpoint46b_post
520    o Added new equation of state -> JMD95Z and JMD95P
521      - EOS of Jackett and McDougall, 1995, JAOT
522      - moved all EOS parameters into EOS.h
523      - new routines ini_eos.F, store_pressure.F
524    o Added UNESCO EOS, but not recommended because it requires
525      in-situ temperature (see JMD95)
526    o Modified formatting for knudsen2.f in utils/knudsen2 and added
527      unesco.f to be used with POLY3
528    checkpoint46b_pre
529    
530    checkpoint46a_post
531    o Added (atmospheric) pressure loading
532      - new field in FFIELDS.h, etc...
533      - new cpp flag ATMOSPHERIC_LOADING
534    o Changed hFacC to _hFacC in calc_phi_hyd.F
535    o Added SHORTWAVE_HEATING to some files for consistency
536    checkpoint46a_pre
537    
538    checkpoint46
539    further merges from release1_p5
540    o new ctrl package
541      - adopted from ECCO environment to enable optimization
542      - added Eliassen Palm fluxes to controls
543    o added Eliassen Palm flux controls to gradient check package
544    o cost package
545      - Compatible with new ctrl package
546      - added Eliassen Palm cost hooks
547      - modif's of existing cost functions
548    o Adjoint-related bug fixes in kpp:
549      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
550      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
551    o autodiff package
552      - flow directives:
553        + new for S/R do_the_model_io
554        + enhanced for S/R checkpoint
555        + new gmredi.flow
556      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
557        disable adcommon.h/g_common.h by default.
558      - fixed problem for adjoint of global_max
559    o modified verification/carbon/
560    o New setup for adjoint of global_ocean
561    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
562    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
563    o incorporated hooks for sponge layer code (external_forcing.F)
564    
565    checkpoint45d_post
566    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
567    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
568      (affects plume_on_slope "cg2d" output)
569    o add new parameter deltaTfreesurf for free-surface time stepping
570    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
571    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
572    o change phiMin in exp1 (to agree with documentation)
573    o add new flags:
574     - T,S forcing inside/outside Adams-Bashforth
575     - turn off temp,salt advection and/or forcing
576     - for each tracer, define internal flag for multiDimAdvection & A-B
577    o monitor: change definition of KE to check conservation of Energy
578    
579    checkpoint45c_post
580    o Removed f90 comments ("!")
581    o Modified initialisations to enable exf package for MITgcm
582      (without invoking ECCO_PACKAGE).
583    o modifications to gradient check package (Martin Losch)
584      - enable centered differences
585      - modified format of standard output
586    
587    checkpoint45b_post
588    o cleaned exchange calls in cg2d
589    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
590    o included CPP option SINGLE_LAYER_MODE in thermodynamics
591      to configure barotropic setup (Martin Losch)
592    o moved some initialisations within bi,bj loop in dynamics
593      (TAF flow dependency)
594    o in initialise_varia, moved call packages_init_variables
595      before convective_adjustment_init
596      (corresponding adjustment of TAF tape initialisation).
597    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
598    
599    checkpoint45a_post
600    o compute Rho over the whole domain (extend iMin,jMin indices)
601    o specific exchange for X-slice domain (case Ny=1)
602    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
603    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
604    
605    checkpoint44h_post = checkpoint45
606    o Fix to restore differentiability:
607      place at which packages_init_variables is called in
608      initialise_varia is crucial for reverse control flow.
609    o modifications in GMRedi to enable stable adjoint
610      (corresponding modif's in thermodynamics, dynamics)
611    o added missing hook for sponge layer code in external_forcing
612    o modified test cost functions
613    o storing in gad_advection (plus removal of write(0,*)!
614    o missing headers TR1.h added in convective_adjustment routines
615    o errorMessageUnit set non-equal zero in eeboot
616      (conflict on some platforms, e.g. IBM SP3)
617    o modified carbon verif.
618    
619    checkpoint44h_pre
620    o vertical grid option: allow to put the Interface at the middle between
621      2 cell-centers ; replace delZ in pkg/kpp by drF.
622    o GM Advective form: Tracers are advected using the residual transport (=
623      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
624    
625    checkpoint44g_post
626    o fix surface correction term in multiDimAdvection (affects plume_on_slope
627      results) ; ifdef missing in thermodynamics.F
628    
629    checkpoint44f_pre,checkpoint44f_post
630    o added PTRACERS package
631      This allows an arbitrary number of passive tracers to be integrated
632      forward simultaneously with the dynamicaly model.
633      + Implemented so far:
634        - basic forward algorithm (time-stepping, advection, diffusion, convection)
635        - I/O and checkpointing
636        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
637      + Not implemented so far:
638        - KPP
639        - OBCS
640      + No specific example supplied (yet) but global_ocean.90x40x15 has the
641        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
642        line in data.pkg.
643      + This package is disabled by default since it increases storage.
644    
645    
646    o testscript: added -cleanup option
647    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
648                 b) enable to filter 2D fields.
649    
650    checkpoint44e_pre,post
651    o re-wrote convective adjustment to use pre-calculated weights
652      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
653      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
654      Original calls to convect() still in place.
655    
656    chkpt44d_pre,post
657    o added missing EXCLUDE_MONITOR flags
658    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
659      (incompatible typ in MIN/MAX expressions caused problems
660      on IBM SP3)
661    o in genmake added variable MAKEDEPEND
662      plus resetting for case SunOS
663    o added timer_stats.c routine for IBM SP3
664    o removed variables in dynamics
665    !!! I forgot to create tag chkpt44d_pre !!!
666    !!! But chkpt44d_pre = chkpt44c_post    !!!
667    
668    o real fresh water flux implemented with non-linear free-surface.
669    
670    chkpt44c_pre,post
671    o few fix (mask in shap_s2, EmPmR in external_field_load,
672      USE_NATURAL_BCS in solve_for_P);
673    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
674    
675    checkpoint44b_pre/_post
676    o merge of relevant stuff from the ecco-branch:
677      - genmake: removed $S64 overwrite for case SunOS
678      - pkg/exf: update and corrections for field swapping and obcs
679      - pkg/ecco: parameter lists for the_model_main, the_main_loop
680                  harmonized between ECCO and MITgcm
681      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
682                      updated checkpointing_lev... lists for obcs
683      - model/src: minor changes in forward_step, plot_field
684                   added directive for divided adjoint in the_main_loop
685      - pkg/mdsio: added mdsio_gl_slice
686    
687    o check parameters & config (chkpt44a_pre,post)
688    o OBC and NonLin_FrSurf.
689    
690    checkpoint44
691    o fix bug in mom_vi_del2uv
692    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
693    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
694    o update AIM experiments (NCEP input files)
695    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
696    o added some stuff for AD
697    
698    checkpoint43
699    o added two new advection tests
700    o added global 4x4 degree ocean test
701    o added test of H&S94 with free surface on cube
702    o some final mods for gradient check, adjoint,...
703    
704    checkpoint42
705      Fixed AD-related problems:
706    o Store directives up-to-date with re-arranged Adams-Bashforth
707      (mainly thermodynamics.F)
708    o New store directives for multi-dim. advection schemes
709      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
710      * new common block and key passkey
711      (mainly gad_advection.F)
712    o Modified store directives for split of dynamics/thermodynamics
713      for the case ALLOW_KPP
714    o Cleaned argument list for timestep_tracer.F
715    
716    checkpoint41
717    o re-formatted/added comments in prologues of key subroutines
718      to work with protex
719    
720    checkpoint40
721    o moved calc_gs, calc_gt and calc_tr1 back to model/src
722    o added FLT (floats) package from Arne along with demo. experiment
723    o re-arranged Adams-Bashforth scheme for tracers to allow easier
724      implementation of forward-in-time forcing terms
725    o more mods for non-linear free-surface including new variable
726    o modified multi-dim method to work on cube
727    o bug fix in KPP (from DM)
728    
729    checkpoint40pre9
730    o added DST advection schemes
731    o fix MPI bug on SGI's
732    o modifications for non-linear free-surface
733    o fixed conditionals for fixed flow/passive tracer only mode
734    o added tension/strain form of stress tensor
735    o changes to commenting of arguments for TAF/TAMC
736    o added/updated many matlab scripts
737    o added multi-dimensional advection method for tracers
738      
739    checkpoint40pre8
740    o new package rw/
741      Added method for dumping intermediate local arrays:
742      mdsio_writetile - same as mdsio_writefield except works from inside
743                        bi,bj loop
744      mdsio_writelocal - same as mdsio_writetile except works for local
745                         arrays
746      write_local_r? - higher-level wrapper for mdsio_writelocal
747      Controlled by diagFreq. Defaults to zero (ie. no dumps)
748      Example given at end of mom_vecinv.F that dumps some local arrays.
749    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
750      control flux-form versus vector invariant code.
751      Switch is runtime flag vectorInvariantMomentum (defaults to false)
752      or genmake -DISABLE ...
753    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
754      (additional storing is now needed for case vecinv;
755      currently nothing implemented to switch this storing off
756      in case fluxform is used since no CPP flag available).
757    
758    checkpoint40pre7
759    o bug fix in dynamics.F
760      calc_viscosity called before k=1,Nr loop.
761    o added some #ifdef's ALLOW_PASSIVE_TRACER
762    o cleaned initialisations in ctrl_map_ini
763      related to TAF
764    
765    checkpoint40pre6
766    o split dynamics into thermodynamics & dynamics
767    o corresponding split of calc_diffusivity into
768      calc_diffusivity, calc_viscosity
769      (kpp_calc_diff, kpp_calc_visc).
770    o Added diffkr, kapgm to control variables
771    o bug fix in gmredi_slope_limit for ldd97
772    
773    checkpoint40pre5
774    o proper initialization of Adams-Bashforth time stepping
775      + uses forward step for very first step of model (iter=0)
776    o re-generated *all* output since almost all output is modified by this
777      change (sorry but we've been putting this one off for about 2 years)
778      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
779        *not* regenerated since they are already out of date and I don't
780        want to create the impression that they are suddenly working.
781    o removed KAP stuff for DEC's
782    o modified/added many .cvsignore files in */code and */input
783    o added new expt "solid-body.cs-32x32x1"
784      + this uses an alternative form of ini_curvilinear_grid.F which
785        is not necessarily any better than the current one...
786    
787    checkpoint40pre4
788    o added re-initialisations of utrans,vtrans,rtrans in
789      calc_common_factors which are crucial for TAF.
790    o extended iMin,jMin range for calc_common_factors,
791      calc_diffusivity
792    o added option ALLOW_PASSIVE_TRACER
793    o a few minor updates and fixes
794    
795    checkpoint40pre3
796    o created calc_gtr1.F for gad package
797    o split the_main_loop and re-introduced forward_step
798    o some recomputations of nIter0 for TAMC
799    
800    checkpoint40pre2
801    o Updated to latest branch of AJA, JMC
802    o Added gradient check package
803    o Added routines for passive tracer handling
804    o Added carbon sequestration sensitivity experiment
805    
806    checkpoint39
807     o Modifications and fixes to support TAMC
808       (mainly missing or wrong directives)
809     o Corrected common blocks when fooling TAMC to produce adjoint I/O
810       in addummy_in_stepping
811     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
812     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
813     o Included following packages:
814       cal: calendar
815       exf: external forcing
816       ecco: essential routines to control use of cal, exf
817             (NB: this is not the full ECCO environment)
818     o disabled some packages by default in genmake
819    
820    checkpoint38
821     o see notes_c37_adj.txt
822     o corrected wrong layer index in external_forcing_t
823     o replaced the_main_loop/forward_step by the_main_loop
824     o removed forceoutput from write_state
825       (replaced criteria for initial/final state)
826     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
827    
828    checkpoint37
829     o mdsio.F routine split and packaged in pkg/mdsio
830       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
831        used unless genmake -disable=mdsio)
832     o allow a more precise surface-geopotential gradient for the atmosphere
833       taking into account the change in space of Alpha (=1/rho) at the surface.
834     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
835       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
836     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
837       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
838       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
839     o Time-Average diagnostics defined as a pseudo package "timeave".
840     o pickup files : old pickup (before c35) did not work with new code (c35
841       and after) unless activating 2 commented lines in initialise-varia.
842     o Non-Hydrostatic pickup file Pb fixed.
843     o bug with Rigid-lid version (since c35) fixed.  
844    
845    checkpoint36
846     o implement Crank-Nickelson barotropic time-stepping
847     o recover Time-Average diagnostics
848     o fix Pb in checkpoint (PR#19)
849     o AIM become a standard package ; clean unused CPP_kees
850    
851    checkpoint35
852     o subtantial rewrite of dynamics.f
853     o allows staggered time-stepping
854     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
855     o added bottom drag (linear + quadratic)
856    
857    checkpoint34
858     o Modified exchange routines for correct reverse simulation.
859     o Added verification output to comply with bug fix in impldiff.F
860       as of c33 (exp2, natl_box).
861     o Corrected store directives in dynamics.F
862     o Corrected array boundaries in impldiff.F
863     o Corrected array dimensions in gmredi.
864       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
865     o Added routine GLOBAL_SUM_INT to global_sum.F
866     o Added mdsio_gl.F for ECCO purposes.
867    
868    checkpoint33
869     o Fixed bug in lower BC in impldiff.F
870     o Fixed confusion about units of forcing arrays in FFIELDS.h
871       namely Fu,Fv,Qnet,Qsw,EmPmR:
872       - Removed verification/natl_box/code/external_fields_scale.F
873         (did not differ from that in model/src)
874       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
875         (see FFIELDS.h for description)
876       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
877         kpp_calc.F and kpp_transport_t.F
878       - Removed model/src/external_fields_scale.F and calls to it
879       - verification/natl_box uses flux data with "atmospheric" sign so
880         a special version of external_fields_load.F is used to
881         change the data as it's read in. This way, the arrays
882         have the right units and signs at all times tha a user could
883         possibly use them.
884     o Corrected genmake to delete a temporary file during configuration
885    
886    checkpoint32
887     o Scaling of forcing fields moved from external_forcing.F to
888       external_fields_scale.F, called directly after loading fields.
889     o Surface relaxation terms added to surface tendency fields in
890       extra subroutine.
891     o impldiff.F changed to avoid storing by TAMC of huge intermediate
892       fields.
893     o Changes in GMRedi to comply with packaging structure.
894     o Modifications and bug fixes in KPP package.
895     o Verification experiment for KPP added (verification/nat_box/)
896    
897    checkpoint31
898     o Packages interface brought in line with defined standard
899       -> new routines packages_...F
900       -> changes in initialise_fixed.F, initialise_varia.F
901       -> enables initialisation interface for ECCO package
902     o Rescaling of external forcing fields immediately after read
903       (removed from external_forcing.F)
904       -> new: surface_fields_scale.F
905       -> affects ini_foorcing.F, external_fields_load.F
906     o Computation of surface tendencies before tendency updates.
907       -> new: external_forcing_surf.F
908     o Change of variable names useGMRedi, useKPP, useECCO
909     o Further changes in dynamics.F, impldiff.F for TAMC
910     o Tested for experiments 0, 2, 4.
911       - not yet tested for GMRedi.
912       - not yet tested for KPP.
913    
914    checkpoint30
915     o Updates for OBCs
916     o New experiment for test OBCs (internal_wave)
917     o New output.txt in verification/exp4/results/
918     o Updates for KPP: calculation of viscosity corrected, new variables
919       kpp_dumpFreq and kpp_taveFreq
920     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
921       and entry for T90 in genmake
922    
923    checkpoint29
924     o packaged KPP and GM/Redi
925    
926    checkpoint28
927     o Corrected initialization of hFacMin for difference vertical coordinates
928     o Modified calculation of partial cell thickness to more robust algorithm
929     o config_summary.F: replaced write_1D_... by write_0D_...
930       read_write.F: added subroutines write_0D_...
931     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
932       included some initialisations required for TAMC.
933     o routine calc_isoslopes: modified sqrt computation to make it
934       differentiable for zero argument.
935     o routines dynamics, impldiff:
936       included store directives and tape key computations required for TAMC.
937     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
938    
939    checkpoint27
940     o fixed calc_isoslopes() to so that cancellation of terms in tensor
941       formulation works properly with variable resolution.
942     o restructured the calling tree between the_model_main() and dynamics()
943     o split initialise() into initialise_fixed() and initialise_varia()
944     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
945       in new routine ini_psurf()
946    
947    checkpoint26
948     o moved some #ifdef in optional routines to encompass everything
949       except the argument declarations. This was using up some memory.
950     o fixed macros like _ADT to work with both versions of Linux cpp
951     o cleaned up some unused and uninitialized variables
952       (helps when debugging with strict compile options)
953     o split up CPP_EEOPTIONS.h into options and macros
954       (macros are now in eesupp/inc/CPP_EEMACROS.h)
955     o patch for 2 processor JAM mode
956    
957    checkpoint25
958     o updates for OBCs and NH
959     o dramatically reduced memory usage
960     o added "JAM" routines for use on Artic network
961     o parameterization of convection by implicit vertical diffusion
962     o added a diagnostic of convective index
963     o moved call to calc_divg_hat() from dynamics() to solve_for_pressure()
964       (this is was partly for OBCs and NH but also in anticipation of
965        an explicit free-surface option)
966     o initial state input files for U and V
967    
968    checkpoint24
969     o Removed some spurious "REAL"s
970     o Updated KPP to latest version from JPL
971     o Added a COS(latitude) in horizontal viscosity
972    
973    checkpoint23
974     o Added del^4 diffusion for salt and temperature
975     o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
976    
977    checkpoint22
978     o Made many small changes: implicit none, format(i5), etc...
979     o Introduced KPP mixing scheme (compiles and runs but *not* tested)
980    
981    checkpoint21
982     o Introduced new I/O package that supports direct-access records (mdsio.F)
983     o Split-up mid-level I/O routines
984     o Updated input data for experiments 0,1,2,4 and 5
985     o Finally removed the genmake.* scripts (everyone seems happy with genmake)
986    
987    checkpoint20
988     o Tidied up open-boundaries some more
989     o Added non-hydrostatic code
990     o Fixed some input data
991     o Modified MPI start-up to work in "coupled" context.
992    
993    checkpoint19
994     o Tidied up directory structure for verification experiments.
995     o Added new code for open boundaries.
996     o Corrected advective terms near boundaries.
997     o Added CPP flag for "old UV" geometry and corrected spherical geometry.
998     o Implemented free-slip/no-slip BCs and del^4 dissipation.
999     o Split default parameters out of ini_parms.F into set_defaults.F.
1000    
1001    checkpoint18
1002     o Further changes for optional code generation with
1003       CPP - ugh!
1004    
1005    checkpoint17
1006     o Beginning to incorporating modularity
1007       for supporting atmos. and ocean configs.
1008     o Small changes for TAMC complinace
1009     o New ultra simple test case. Barotropic box
1010       configuration "exp0".
1011    
1012    checkpoint16
1013     o Minor changes to exchange routines to support
1014       accumulation in reverse mode. Adjoint of an
1015       assignment is an addition.
1016     o Changes to support compilation by TAMC (LR(1)
1017       syntax) and by g77 under Linux ( 72 character
1018       limit ).
1019    
1020    checkpoint15
1021     Rewrote exchange routines to allow
1022     o General tile <-> tile connectivity.
1023     o TAMC reverse mode flag ( is this really needed? )
1024     o Variable width overlap and exchange region widths.
1025     o Hooks for sharing data via DMA, Arctic, Memory Channel,
1026       shmput/shmget, VIA, SYSV shmem and every other cool
1027       communication method.
1028    
1029    checkpoint14
1030     Consistent isomorphism chages made. These allow dynamical core
1031     to support both pressure and meters as a vertical coordinate.
1032    
1033  checkpoint13  checkpoint13
1034   Release which corrects global_max problem and a couple   Release which corrects global_max problem and a couple
1035   of KGM time-averaging diagnostic errors. Also contains   of KGM time-averaging diagnostic errors. Also contains

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