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revision 1.32 by adcroft, Thu Nov 30 16:51:40 2000 UTC revision 1.158 by heimbach, Fri May 23 18:24:17 2003 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    checkpoint50f_pre
7     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
8          + change Evap over land. (update aim.5l_cs output)
9     o added missing .cvsignores and made uniform across expts
10     o changed configuration of tidal_basin_2d expt
11     o added pkg/debug functions for tracing code in fatal crashes
12     o tidied pkg/monitor to use MONITOR_OPTIONS.h
13     o new fn in pkg/monitor to stop model if solution grows too big
14     o removed lots of single quotes from comments
15    
16    checkpoint50e_post
17    o make KPP work with PTRACERS
18     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
19       nearly a copy of kpp_transport_s
20     - there is no analogue to SurfaceTendencyS, so I have to use
21       gPtr(of the surface layer) instead
22    o add a new platform SunFire+mpi (SunFire 15000) to genmake
23    checkpoint50e_pre
24    
25    checkpoint50d_post
26    o change kpp output from multiple-record state files to single-record state
27      files analogous to write_state.F
28    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
29      analogous to the cg2d-related output.
30    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
31      so that writing to internal file fn (with length 512) fails.
32    checkpoint50d_pre
33    
34    checkpoint50c_post
35    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
36    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
37    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
38    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
39    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
40    
41    checkpoint50c_pre
42    Merging from release1_p13:
43    o bug fix for pkg/seaice dynamic solver
44    o Added SEAICE_initialHEFF to pkg/seaice
45    
46    checkpoint50b_post
47    o store u*,v* in gU,V instead of in guNm1,gvNm1
48    o in order to put the momForcing out of the Adams-Bashforth:
49      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
50      to timestep.F
51    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
52    o re-generate output for highly sensitive test-exp:
53       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
54    
55    checkpoint50b_pre
56    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
57    o corrected CPP option mismatch in exf_Bulk... functions for case
58      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
59    
60    checkpoint50a_post
61    o Bug fix for merging between c50 and KPP.
62      ikey was passed from thermodynamics to kpp_calc via
63      common block rather than being recomputed in kpp_calc,
64      in contradiction with new key itdkey.
65      New key ikppkey created, and tamc.h headers updated.
66    
67    checkpoint50
68    - 2nd step of merge with ecco-branch:
69      merge changes in ecco-branch back into main trunk
70    - bug fix in find_alpha
71    - more storing in gmredi_calc_tensor.F, kpp_routines.F
72    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
73    - merged some sliced AD support routines
74    
75    checkpoint49
76    merged from ecco-branch:
77    o exf:
78      - Enable initialisation of forcing fields to constant
79        (runtime) values.
80      - in exf_getffields.F
81        Reduce i-/j-loop to interior domain, discarding overlaps.
82        That also fixes wrong TAF-key computations for key_1, key_2
83        with bulf formulae.
84      - exf_init.F modify #ifdef for exf_init_evap
85      - exf_getffieldrec.F, ctrl_getrec.F
86        The following INT-usages are not safe:
87          fldsecs  = int(fldsecs/fldperiod)*fldperiod
88          fldcount = int(fldsecs/fldperiod) + 1
89        and were modified.
90    o autodiff: checkpoint_lev...
91      - updated storing for bulk formulae (some arrays were missing)
92      - added state for seaice package
93      - synchronized with main branch
94    o DIVA:
95      Modif.s in
96      - the_main_loop.F
97      - the_model_main.F
98      and added cost_final_restore.F cost_final_store.F
99      o With these changes, it is possible to fully separate
100        the first forward run to compute the cost function (mdthe_main_loop)
101        and adjoint runs over individual DIVA intervals (adthe_main_loop)
102        into separate model executions.
103        This enables better tuning of DIVA to given queue sizes.
104      o Loss of cost function value in consecutive DIVA runs is
105        fixed by storing to 'costfinal' file.
106      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
107        beginning/end of adjoint integration is accounted for.
108      The current changes apply to TAF-1.4.26.
109      TAF has one remaining bug, requiring one manual change
110      (see MITgcm manual).
111    o cal: synchronized between MAIN and ecco-branch
112    
113    checkpoint48i_post
114    o Changes to restore differentiability of code w.r.t. previous tag
115      (mostly adding new routines to make list and replacing
116      pressure by totPhiHyd).
117    o Updated and merged grdchk package
118      - has both ADM and TLM checks
119      - works for single- and multi-proc.
120      - output cleaned
121      - worked successfully for parallel DIVA
122    o genmake:
123      - Adding -platform=SP4
124      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
125    o Modif. for DIVA:
126      ctrl_unpack should not be called in intermediate DIVA interval.
127      (similar thing would apply for active files such as
128      tbar, sbar, psbar, which should not be reinitialised;
129      only relevant for ecco-branch)
130    
131    checkpoint48h_post
132    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
133    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
134    o Added SEAICE_initialHEFF to pkg/seaice
135    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
136    
137    checkpoint48g_post
138    --- EOS:
139    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
140      store total Potential in totPhyHyd for diagnostics & EOS.
141    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
142    --- Pressure/geopotential gradient:
143    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
144    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
145      ( changes results of global_ocean_pressure )
146    o NLFS + z-coord.: add eta*Rho' contribution.
147    o accurate phiHyd when using interface-W at the middle between 2 centers
148     ( changes results of ideal_2D_oce )
149    o includes r* 2nd term in potential gradient.
150    
151    checkpoint48f_post
152    Merging from release1_p12:
153    o Modifications for using pkg/exf with pkg/seaice
154      - improved description of the various forcing configurations
155      - added basic radiation bulk formulae to pkg/exf
156      - units/sign fix for evap computation in exf_getffields.F
157      - updated verification/global_with_exf/results/output.txt
158    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
159      (SBO) core products, including oceanic mass, center-of-mass,
160      angular, and bottom pressure (see pkg/sbo/README.sbo).
161    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
162      to avoid negative values in shallow regions.
163      - updated verification/natl_box/results/output.txt
164      - updated verification/lab_sea/results/output.txt
165    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
166    o Added useSingleCpuIO option (see PARAMS.h).
167    o Updated useSingleCpuIO option in mdsio_writefield.F to
168      work with multi-field files, e.g., for single-file pickup.
169    o pkg/seaice:
170      - bug fix in growth.F: QNET for no shortwave case
171      - added HeffFile for specifying initial sea-ice thickness
172      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
173    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
174      kpp_transport_t.F, forward_step.F, and the_main_loop.F
175    o pkg/seaice:
176      - adjoint-friendly modifications
177      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
178    
179    checkpoint48e_post
180    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
181    o dynamics: change definition of computational domain & adapt mom_fluxform
182      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
183    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
184        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
185        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
186        global_ocean.90x40x15 global_with_exf global_ocean_pressure
187        inverted_barometer solid-body.cs-32x32x1
188      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
189    
190    checkpoint48d_post
191    o in preparation for r*:
192     a) use pre-computed gradient of hydrostatic potential:
193        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
194     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
195        => affects results of glob_oce_pressure (different truncation error)  
196      update output.txt of ideal_2D_oce & global_ocean_pressure
197    
198    checkpoint48d_pre
199    o in preparation for r*:
200      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
201      pass the 2 comp. of the grad. as arguments to momentum S/R.
202      but for the moment, only used if it does not change the results.
203    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
204    
205    checkpoint48c_post
206    Modifications in treatment of initial flux forcing controls
207    to avoid extra storing of flux fields.
208    
209    checkpoint48c_pre
210    o Added tidal_basin_2d experiment (currently 1D!)
211    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
212    
213    checkpoint48b_post
214    o r* coordinate added in #ifdef NONLIN_FRSURF block.
215     (modification to pressure gradient not yet implemented)
216    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
217      (for U & V) that are used for vertical advection of momentum.
218    
219    checkpoint48a_post
220    o In preparation for r*, use temp. array to compute vertical transport
221       in flux-form momentum pkg. => change results of few test-exp.
222      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
223                        lab_sea, natl_box & plume_on_slope
224    
225    checkpoint48
226    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
227    
228    checkpoint47j_post
229    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
230    o moved adexch from forward_step to addummy_in_stepping
231    o added exch in ctrl_map_...
232    o aveFreq.=0. at end of cost_final to avoid overwrite in
233      reverse checkpointing loop
234    o Yet more changes in gmredi:
235      * adgmredi_calc_tensor
236        avoiding all recomputation of gmredi_slope_limit
237      * adgmredi_x/y/rtransport
238        added flag for excessive storing to avoid recomp. of
239        u/v/rtans, dTdx/y/z
240        -> this is not really necessary and very memory-consuming
241      * adgmredi_slope_psi:
242        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
243      * gmredi_slope_limit
244        re-activated full calculation of taperfct for case 'ac02'
245    o updating verification/ adjoints of carbon, global_ocean.90x40x15
246    
247    checkpoint47i_post
248    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
249    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
250      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
251    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
252    o gmredi: fix few bugs.
253    
254    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
255    This will be a good checkpoint to plug into the ecco-branch.
256    o few modif.'s to get latest version adjointed
257      (mainly kick out code in ini_linear_phisurf)
258    o modif's to run adjoint with exactConserv
259    o case GM_BOLUS_ADVEC should be cleaned
260      S/R gmredi_slope_psi should be cleaned
261    o verification/carbon now has exactConserv=.TRUE.
262    
263    checkpoint47g_post
264    o time-average AIM output: becomes independent from statvars time-average
265      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
266    o After TAF bug fix:
267      Tested adjoint of gmredi package.
268      Tests were done with checkpoint47 rather than with latest
269      checkpoint47f_post since the latter is broken for the adjoint
270      verification/carbon/ contains both ADM and TLM gradient checks.
271    Here they are, before they get changed/lost/stolen.
272    Mostly modif.'s to fix numerical sensitivities.
273    Gradient checks OK for
274    - GM_taper_scheme:
275      * clipping
276      * ac02
277      * linear
278      * glw91
279      * dm95
280      * ldd97
281    - GMREDI_OPTIONS:
282      * GM_VISBECK_VARIABLE_K
283      * GM_NON_UNITY_DIAGONAL
284      * GM_EXTRA_DIAGONAL
285      * GM_BOLUS_ADVEC
286    in conjunction with data.gmredi parameters to be checked in
287    in a few minutes under verification/carbon/code/
288    
289    checkpoint47f_post
290    Merging from release1_p10:
291    o modifications for using pkg/exf with pkg/seaice
292      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
293        and SEAICE_EXTERNAL_FLUXES
294      - pkg/exf CPP options EXF_READ_EVAP and
295        EXF_NO_BULK_COMPUTATIONS
296      - usage examples are Experiments 8 and 9 in
297        verification/lab_sea/README
298      - verification/lab_sea default experiment now uses
299        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
300    
301    checkpoint47e_post
302    o created a tag prior to creating a branch
303    
304    checkpoint47d_post
305    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
306      at the bottom boundary had an erroneous half slip boundary condition
307    o added bottom drag and no slip boundary condition capabilities to
308      oceanic pressure coordinates code
309    o added new verification experiment global_ocean_pressure, this experiment is
310      also described in the tutorial section of the manual
311    checkpoint47d_pre
312    
313    checkpoint47c_post
314    o Added a verification experiment for a global cubed-sphere ocean run
315      -  verification/global_ocean.cubed32x32x30
316      -  uses pkg/therm_seaice and pkg/bulk_forcing
317    
318    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
319    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
320      when using P-coordinate; only implemented for atmospheric config.
321    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
322      NOTES: requires option NONLIN_FRSURF to be "#define".
323    o update advect_xz/results/output.txt (left from checkpoint44g_post)
324    
325    checkpoint47b_post
326    Merging from release1_p9:
327    o pkg/seaice
328      - removed GOTO's and added taf directives
329      - double precision constants to reduce the g77 (Linux)
330        to F77 (SGI) differences reported in release1_p8
331    o tools/genmake
332      - added SGI options
333    o verification/testscript
334      - updated to that of checkpoint47a_post
335    o verification/global_ocean.90x40x15/input/eedata
336      - modified for SGI f77 compatibility
337    o verification/lab_sea
338      - added description of sea-ice model
339      - added missing matlab routines
340      - added test of thermodynamics parallelization
341    
342    checkpoint47a_post
343    o new pkg: aim_v23
344     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
345       for now, keep the same surface forcing as before.
346     - Part-Cell implemented into AIM; check that Heat & Water are conserved
347     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
348     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
349    o add diagnostic of surface correction term in monitor output
350    
351    o bulk_force and therm_seaice
352    - Two packages:  bulk_force (Bulk forcing)
353      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
354    - Earlier integration from Stephaine Dutkiewicz
355      and Patrick Heimbach.
356    - Two ifdef statements for compile time,
357       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
358    
359    checkpoint47
360    differentiable version of checkpoint46n_post
361    o bug fix in quasihydrostaticterms
362    o * "clean" adjoint code (in terms of extensive recomputations)
363        can now be obtained for all GMREDI options (i.e. for
364        - GM_VISBECK_VARIABLE_K
365        - GM_NON_UNITY_DIAGONAL
366        - GM_EXTRA_DIAGONAL
367        - GM_BOLUS_ADVEC )
368      * However, wrong gradient check problem remains unsolved.
369      * New CPP options have been introduced for different
370        tapering schemes
371    o external_fields_load now part of differentiation list
372    o pressure needs multiple storing;
373      would be nice to have store_pressure at beginning or
374      end of forward_step, e.g. by having phiHyd global (5-dim.)
375      (NB: pressure is needed for certain cases in find_rho,
376      which is also invoked through convective_adjustment).
377    o recomputations in find_rho for cases
378     'JMD95'/'UNESCO' or 'MDJWF' are OK.
379    o #define ATMOSPHERIC_LOADING should be differentiable
380    o ini_forcing shifted to begining of initialise_varia
381    o Incorporating QNVS line search routines into MITgcm
382      (this is separate code, and therefore not under pkg)
383      lsopt/, optim/
384    o Updated verification/carbon/
385      - #define GM_VISBECK_VARIABLE_K
386      - GM_taper_scheme    = 'ldd97'    
387    
388    checkpoint46n_post
389    Merging from release1_p8:
390    o verification/natl_box:
391      updating new external_fields_load routine
392    o New package: pkg/seaice
393      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
394      The sea-ice code is based on Hibler (1979-1980).
395      Two sea-ice dynamic solvers, ADI and LSR, are included.
396      In addition to computing prognostic sea-ice variables and diagnosing
397      the forcing/external data fields that drive the ocean model,
398      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
399      The implied surface heat flux is then stored in variable
400      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
401      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
402      non-local transport term.  Because this call precedes model
403      thermodynamics, temperature under sea-ice may not be "exactly" at
404      the freezing point by the time theta is dumped or time-averaged.
405      N.B.: fairly large differences in accuracy occur across
406            different platforms/compilers; comparison between
407            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
408            generated output gives:
409       T           S           U           V
410      C D M    c        m  s        m  s        m  s        m  s
411      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
412      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
413      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
414    
415      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
416    o GAD:
417      - generated new common blocks to account for call of
418        same gad routines with differing traceridentities
419        (needed to modify tracerIdentity indices in GAD.h)
420      - generated separate common blocks for case useCubedSphereExchange
421        (Department of Futurology)
422      - parameter lists to gmredi_?transport: added tracerIdentity
423      - added new key indices to tamc.h
424    o external_fields_load:
425      - added this routine to TAF list
426      - needed to make some common blocks global and additional storing
427        along the same lines as exf package (checkpoint_lev?_directives.h)
428    o exf:
429      updated external forcing package
430      - bug fixes carried over from ecco-branch
431        (missing OBCS_OPTIONS.h in two routines)
432      - enable easy to use "no forcing".
433      - added exf I/O for atmospheric loading
434      - added exf I/O for runoff data
435      - transfered scaling between exf <-> MITgcm to exf namelist
436    o Adding new verification experiment global_with_exf.
437      This verification experiment is almost identical to the
438      global_ocean.90x40x15 experiment, except that it uses
439      the exf (and cal) package instead of the
440      external_fields_load routine (cf README file).
441    
442    checkpoint46m_post
443    o modified testscript to return -- when there are no lines of "%MON" output
444    o added new flag "quasiHydrostatic" for QH mode
445      and new routine quasihydrostaticterms()
446    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
447      New routine: mom_u_coriolis_nh()
448    o fixed sign of non-hydrostatic metric terms in u and v equations.
449      Depend on correct sign of gravitySign.
450    o added work.pc* to .cvsignore in aim directories using ifc
451    o introduced flag for controllin non-hydrostatic metric terms
452    o removed gravitySign from PARM04
453    o switched to g77/ifc from pgf77 in aim experiments
454    
455    checkpoint46l_post
456    o made convective adjustment work with pressure coordinates:
457     - changed the direction of k-loop in convective_adjustment.F for the
458       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
459     - adjusted the reference pressure k-index in convective_adjustment.F
460     - adjusted the convection condition in convect.F (in analogy to
461       calc_ivdc.F)
462     - convective_adjustment no longer computes anything on the halos
463     - removed the warnings about negative salinity from find_rho.F and
464       find_alpha.F; instead the new routine look_for_neg_salinity, called
465       at the beginning of find_rho, find_alpha, and find_beta, does a
466       check of the entire slice, if CPP-option
467       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
468    checkpoint46l_pre
469    
470    checkpoint46k_post
471    o fixed the verification/global_ocean.90x40x15 experiment:
472     - new bathymetry (the world according to A., JMC, and M.)
473     - new initial fields and forcing fields (*.bin files)
474     - new POLY3.COEFFS (for the next release one should switch to a full
475       equation of state: JMD95P or MDJWF)
476     - fixed several errors and redundancies in the data file
477     - experiment uses looped cells
478     - added matlab directory with diagnostic scripts for plotting of output
479    
480    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
481     - read AIM physics parameters from a file (data.aimphys)
482     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
483    
484    checkpoint46j_post
485    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
486    o move wVel computation at the end of the time step, in S/R integr_continuity
487    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
488    o update timeave pkg for wVel diagnostic.
489    checkpoint46j_pre
490    
491    checkpoint46i_post
492    o Clean up AIM package (and keep the results unchanged):
493      include CPP_OPTION and use IMPLICT NONE in all routines ;
494      declare all the variables _RL ; use _d 0 for all numerical constants.
495      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
496    
497    checkpoint46h_post
498    o cleaned up the use of rhoNil and rhoConst.
499      - rhoNil should only appear in the LINEAR equation of state, everywhere
500        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
501        and the dynamical equations are all divided by rhoConst
502    o introduced new parameter rhoConstFresh, a reference density of fresh
503      water, to remove the fresh water flux's dependence on rhoNil. The default
504      value is 999.8 kg/m^3
505    o cleanup up external_forcing.F and external_forcing_surf.F
506      - can now be used by both OCEANIC and OCEANICP
507    checkpoint46h_pre
508    
509     Added code to convert surface volume flux (fresh water) into
510     a mass flux when using P coordinates in the ocean (OCEANICP).
511     Note: It assumes you have set rho0=rhoConst=density of fresh water.
512    
513    checkpoint46g_post
514    o Include a new diagnostic variable phiHydLow for the ocean model
515      - in z-coordinates, it is the bottom pressure anomaly
516      - in p-coordinates, it is the sea surface elevation
517      - in both cases, these variable have global drift, reflecting the mass
518        drift in z-coordinates and the volume drift in p-coordinates
519      - included time averaging for phiHydLow, be aware of the drift!
520    o depth-dependent computation of Bo_surf for pressure coordinates
521      in the ocean (buoyancyRelation='OCEANICP')
522      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
523        Theta, Salinity, and Pressure in the parameter list. This routine is
524        presently contained in find_rho.F. This routine does not give the
525        correct density for 'POLY3', which would be a z-dependent reference
526        density.
527    o cleaned up find_rho
528      - removed obsolete 'eqn' from the parameter list.
529    o added two new verification experiments: gop and goz
530      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
531    checkpoint46g_pre
532    
533    checkpoint46f_post
534    o Enable tangent linear (forward mode) gradient checks:
535      - extended active file handling to g_... files
536      - added TANGENT_SIMULATION to theSimulationMode
537      - extended grdchk package accordingly
538    o added tangent linear setup in verification/carbon/code_ftl
539    o added adjoint setup in verification/front_relax/code_ad
540    
541    checkpoint46e_post
542    o Added new equation of state -> MDJWF
543      - EOS of McDougall et al., 2002, JAOT, submitted
544      - caveat: the equation of state is only valid for a smaller (more
545        realistic?) range of values than JMD95P/Z and UNESCO
546      - added masks to the calculation of pressure in store_pressure
547      - added more check values for density in check_eos (ini_eos.F), some of
548        the old check values are out of the range of the MDJWF-eos, so don't
549        expect perfect matches for those
550    checkpoint46e_pre
551    
552    checkpoint46d_post
553    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
554      'OCEANICP', also initialised field pressure correctly in ini_eos in the
555      case of pressure coordinates. eosType='JMD95Z' in
556      combination with buoyancyRelation='OCEANICP' now causes an error.
557    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
558      in find_alpha/beta.
559    checkpoint46d_pre
560    
561    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
562      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
563    
564    checkpoint46c_post
565    o Changes necessary for ocean in p-coordinates
566     -  Added new buoyancy relation = 'OCEANICP'
567     -  Added new parameters = gravitySign (this used to be contained inside
568        the factor dRdZ which I added when we first switched to R coordinates).
569     X GM/Redi is not compatible (yet)
570     X bottom drag and no-slip need to be debugged.
571    checkpoint46c_pre
572    
573    checkpoint46b_post
574    o Added new equation of state -> JMD95Z and JMD95P
575      - EOS of Jackett and McDougall, 1995, JAOT
576      - moved all EOS parameters into EOS.h
577      - new routines ini_eos.F, store_pressure.F
578    o Added UNESCO EOS, but not recommended because it requires
579      in-situ temperature (see JMD95)
580    o Modified formatting for knudsen2.f in utils/knudsen2 and added
581      unesco.f to be used with POLY3
582    checkpoint46b_pre
583    
584    checkpoint46a_post
585    o Added (atmospheric) pressure loading
586      - new field in FFIELDS.h, etc...
587      - new cpp flag ATMOSPHERIC_LOADING
588    o Changed hFacC to _hFacC in calc_phi_hyd.F
589    o Added SHORTWAVE_HEATING to some files for consistency
590    checkpoint46a_pre
591    
592    checkpoint46
593    further merges from release1_p5
594    o new ctrl package
595      - adopted from ECCO environment to enable optimization
596      - added Eliassen Palm fluxes to controls
597    o added Eliassen Palm flux controls to gradient check package
598    o cost package
599      - Compatible with new ctrl package
600      - added Eliassen Palm cost hooks
601      - modif's of existing cost functions
602    o Adjoint-related bug fixes in kpp:
603      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
604      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
605    o autodiff package
606      - flow directives:
607        + new for S/R do_the_model_io
608        + enhanced for S/R checkpoint
609        + new gmredi.flow
610      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
611        disable adcommon.h/g_common.h by default.
612      - fixed problem for adjoint of global_max
613    o modified verification/carbon/
614    o New setup for adjoint of global_ocean
615    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
616    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
617    o incorporated hooks for sponge layer code (external_forcing.F)
618    
619    checkpoint45d_post
620    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
621    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
622      (affects plume_on_slope "cg2d" output)
623    o add new parameter deltaTfreesurf for free-surface time stepping
624    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
625    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
626    o change phiMin in exp1 (to agree with documentation)
627    o add new flags:
628     - T,S forcing inside/outside Adams-Bashforth
629     - turn off temp,salt advection and/or forcing
630     - for each tracer, define internal flag for multiDimAdvection & A-B
631    o monitor: change definition of KE to check conservation of Energy
632    
633    checkpoint45c_post
634    o Removed f90 comments ("!")
635    o Modified initialisations to enable exf package for MITgcm
636      (without invoking ECCO_PACKAGE).
637    o modifications to gradient check package (Martin Losch)
638      - enable centered differences
639      - modified format of standard output
640    
641    checkpoint45b_post
642    o cleaned exchange calls in cg2d
643    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
644    o included CPP option SINGLE_LAYER_MODE in thermodynamics
645      to configure barotropic setup (Martin Losch)
646    o moved some initialisations within bi,bj loop in dynamics
647      (TAF flow dependency)
648    o in initialise_varia, moved call packages_init_variables
649      before convective_adjustment_init
650      (corresponding adjustment of TAF tape initialisation).
651    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
652    
653    checkpoint45a_post
654    o compute Rho over the whole domain (extend iMin,jMin indices)
655    o specific exchange for X-slice domain (case Ny=1)
656    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
657    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
658    
659    checkpoint44h_post = checkpoint45
660    o Fix to restore differentiability:
661      place at which packages_init_variables is called in
662      initialise_varia is crucial for reverse control flow.
663    o modifications in GMRedi to enable stable adjoint
664      (corresponding modif's in thermodynamics, dynamics)
665    o added missing hook for sponge layer code in external_forcing
666    o modified test cost functions
667    o storing in gad_advection (plus removal of write(0,*)!
668    o missing headers TR1.h added in convective_adjustment routines
669    o errorMessageUnit set non-equal zero in eeboot
670      (conflict on some platforms, e.g. IBM SP3)
671    o modified carbon verif.
672    
673    checkpoint44h_pre
674    o vertical grid option: allow to put the Interface at the middle between
675      2 cell-centers ; replace delZ in pkg/kpp by drF.
676    o GM Advective form: Tracers are advected using the residual transport (=
677      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
678    
679    checkpoint44g_post
680    o fix surface correction term in multiDimAdvection (affects plume_on_slope
681      results) ; ifdef missing in thermodynamics.F
682    
683    checkpoint44f_pre,checkpoint44f_post
684    o added PTRACERS package
685      This allows an arbitrary number of passive tracers to be integrated
686      forward simultaneously with the dynamicaly model.
687      + Implemented so far:
688        - basic forward algorithm (time-stepping, advection, diffusion, convection)
689        - I/O and checkpointing
690        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
691      + Not implemented so far:
692        - KPP
693        - OBCS
694      + No specific example supplied (yet) but global_ocean.90x40x15 has the
695        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
696        line in data.pkg.
697      + This package is disabled by default since it increases storage.
698    
699    
700    o testscript: added -cleanup option
701    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
702                 b) enable to filter 2D fields.
703    
704    checkpoint44e_pre,post
705    o re-wrote convective adjustment to use pre-calculated weights
706      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
707      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
708      Original calls to convect() still in place.
709    
710    chkpt44d_pre,post
711    o added missing EXCLUDE_MONITOR flags
712    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
713      (incompatible typ in MIN/MAX expressions caused problems
714      on IBM SP3)
715    o in genmake added variable MAKEDEPEND
716      plus resetting for case SunOS
717    o added timer_stats.c routine for IBM SP3
718    o removed variables in dynamics
719    !!! I forgot to create tag chkpt44d_pre !!!
720    !!! But chkpt44d_pre = chkpt44c_post    !!!
721    
722    o real fresh water flux implemented with non-linear free-surface.
723    
724    chkpt44c_pre,post
725    o few fix (mask in shap_s2, EmPmR in external_field_load,
726      USE_NATURAL_BCS in solve_for_P);
727    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
728    
729    checkpoint44b_pre/_post
730    o merge of relevant stuff from the ecco-branch:
731      - genmake: removed $S64 overwrite for case SunOS
732      - pkg/exf: update and corrections for field swapping and obcs
733      - pkg/ecco: parameter lists for the_model_main, the_main_loop
734                  harmonized between ECCO and MITgcm
735      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
736                      updated checkpointing_lev... lists for obcs
737      - model/src: minor changes in forward_step, plot_field
738                   added directive for divided adjoint in the_main_loop
739      - pkg/mdsio: added mdsio_gl_slice
740    
741    o check parameters & config (chkpt44a_pre,post)
742    o OBC and NonLin_FrSurf.
743    
744    checkpoint44
745    o fix bug in mom_vi_del2uv
746    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
747    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
748    o update AIM experiments (NCEP input files)
749    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
750    o added some stuff for AD
751    
752    checkpoint43
753    o added two new advection tests
754    o added global 4x4 degree ocean test
755    o added test of H&S94 with free surface on cube
756    o some final mods for gradient check, adjoint,...
757    
758    checkpoint42
759      Fixed AD-related problems:
760    o Store directives up-to-date with re-arranged Adams-Bashforth
761      (mainly thermodynamics.F)
762    o New store directives for multi-dim. advection schemes
763      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
764      * new common block and key passkey
765      (mainly gad_advection.F)
766    o Modified store directives for split of dynamics/thermodynamics
767      for the case ALLOW_KPP
768    o Cleaned argument list for timestep_tracer.F
769    
770    checkpoint41
771    o re-formatted/added comments in prologues of key subroutines
772      to work with protex
773    
774    checkpoint40
775    o moved calc_gs, calc_gt and calc_tr1 back to model/src
776    o added FLT (floats) package from Arne along with demo. experiment
777    o re-arranged Adams-Bashforth scheme for tracers to allow easier
778      implementation of forward-in-time forcing terms
779    o more mods for non-linear free-surface including new variable
780    o modified multi-dim method to work on cube
781    o bug fix in KPP (from DM)
782    
783    checkpoint40pre9
784    o added DST advection schemes
785    o fix MPI bug on SGI's
786    o modifications for non-linear free-surface
787    o fixed conditionals for fixed flow/passive tracer only mode
788    o added tension/strain form of stress tensor
789    o changes to commenting of arguments for TAF/TAMC
790    o added/updated many matlab scripts
791    o added multi-dimensional advection method for tracers
792      
793    checkpoint40pre8
794    o new package rw/
795      Added method for dumping intermediate local arrays:
796      mdsio_writetile - same as mdsio_writefield except works from inside
797                        bi,bj loop
798      mdsio_writelocal - same as mdsio_writetile except works for local
799                         arrays
800      write_local_r? - higher-level wrapper for mdsio_writelocal
801      Controlled by diagFreq. Defaults to zero (ie. no dumps)
802      Example given at end of mom_vecinv.F that dumps some local arrays.
803    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
804      control flux-form versus vector invariant code.
805      Switch is runtime flag vectorInvariantMomentum (defaults to false)
806      or genmake -DISABLE ...
807    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
808      (additional storing is now needed for case vecinv;
809      currently nothing implemented to switch this storing off
810      in case fluxform is used since no CPP flag available).
811    
812    checkpoint40pre7
813    o bug fix in dynamics.F
814      calc_viscosity called before k=1,Nr loop.
815    o added some #ifdef's ALLOW_PASSIVE_TRACER
816    o cleaned initialisations in ctrl_map_ini
817      related to TAF
818    
819    checkpoint40pre6
820    o split dynamics into thermodynamics & dynamics
821    o corresponding split of calc_diffusivity into
822      calc_diffusivity, calc_viscosity
823      (kpp_calc_diff, kpp_calc_visc).
824    o Added diffkr, kapgm to control variables
825    o bug fix in gmredi_slope_limit for ldd97
826    
827    checkpoint40pre5
828    o proper initialization of Adams-Bashforth time stepping
829      + uses forward step for very first step of model (iter=0)
830    o re-generated *all* output since almost all output is modified by this
831      change (sorry but we've been putting this one off for about 2 years)
832      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
833        *not* regenerated since they are already out of date and I don't
834        want to create the impression that they are suddenly working.
835    o removed KAP stuff for DEC's
836    o modified/added many .cvsignore files in */code and */input
837    o added new expt "solid-body.cs-32x32x1"
838      + this uses an alternative form of ini_curvilinear_grid.F which
839        is not necessarily any better than the current one...
840    
841    checkpoint40pre4
842    o added re-initialisations of utrans,vtrans,rtrans in
843      calc_common_factors which are crucial for TAF.
844    o extended iMin,jMin range for calc_common_factors,
845      calc_diffusivity
846    o added option ALLOW_PASSIVE_TRACER
847    o a few minor updates and fixes
848    
849    checkpoint40pre3
850    o created calc_gtr1.F for gad package
851    o split the_main_loop and re-introduced forward_step
852    o some recomputations of nIter0 for TAMC
853    
854    checkpoint40pre2
855    o Updated to latest branch of AJA, JMC
856    o Added gradient check package
857    o Added routines for passive tracer handling
858    o Added carbon sequestration sensitivity experiment
859    
860    checkpoint39
861     o Modifications and fixes to support TAMC
862       (mainly missing or wrong directives)
863     o Corrected common blocks when fooling TAMC to produce adjoint I/O
864       in addummy_in_stepping
865     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
866     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
867     o Included following packages:
868       cal: calendar
869       exf: external forcing
870       ecco: essential routines to control use of cal, exf
871             (NB: this is not the full ECCO environment)
872     o disabled some packages by default in genmake
873    
874    checkpoint38
875     o see notes_c37_adj.txt
876     o corrected wrong layer index in external_forcing_t
877     o replaced the_main_loop/forward_step by the_main_loop
878     o removed forceoutput from write_state
879       (replaced criteria for initial/final state)
880     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
881    
882    checkpoint37
883     o mdsio.F routine split and packaged in pkg/mdsio
884       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
885        used unless genmake -disable=mdsio)
886     o allow a more precise surface-geopotential gradient for the atmosphere
887       taking into account the change in space of Alpha (=1/rho) at the surface.
888     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
889       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
890     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
891       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
892       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
893     o Time-Average diagnostics defined as a pseudo package "timeave".
894     o pickup files : old pickup (before c35) did not work with new code (c35
895       and after) unless activating 2 commented lines in initialise-varia.
896     o Non-Hydrostatic pickup file Pb fixed.
897     o bug with Rigid-lid version (since c35) fixed.  
898    
899    checkpoint36
900     o implement Crank-Nickelson barotropic time-stepping
901     o recover Time-Average diagnostics
902     o fix Pb in checkpoint (PR#19)
903     o AIM become a standard package ; clean unused CPP_kees
904    
905    checkpoint35
906     o subtantial rewrite of dynamics.f
907     o allows staggered time-stepping
908     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
909     o added bottom drag (linear + quadratic)
910    
911    checkpoint34
912     o Modified exchange routines for correct reverse simulation.
913     o Added verification output to comply with bug fix in impldiff.F
914       as of c33 (exp2, natl_box).
915     o Corrected store directives in dynamics.F
916     o Corrected array boundaries in impldiff.F
917     o Corrected array dimensions in gmredi.
918       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
919     o Added routine GLOBAL_SUM_INT to global_sum.F
920     o Added mdsio_gl.F for ECCO purposes.
921    
922  checkpoint33  checkpoint33
923   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
924   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h

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