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revision 1.25 by adcroft, Wed Apr 5 15:37:10 2000 UTC revision 1.96 by adcroft, Tue Nov 5 19:15:12 2002 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o introduced flag for controllin non-hydrostatic metric terms
7    o removed gravitySign from PARM04
8    o switched to g77/ifc from pgf77 in aim experiments
9    
10    checkpoint46l_post
11    o made convective adjustment work with pressure coordinates:
12     - changed the direction of k-loop in convective_adjustment.F for the
13       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
14     - adjusted the reference pressure k-index in convective_adjustment.F
15     - adjusted the convection condition in convect.F (in analogy to
16       calc_ivdc.F)
17     - convective_adjustment no longer computes anything on the halos
18     - removed the warnings about negative salinity from find_rho.F and
19       find_alpha.F; instead the new routine look_for_neg_salinity, called
20       at the beginning of find_rho, find_alpha, and find_beta, does a
21       check of the entire slice, if CPP-option
22       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
23    checkpoint46l_pre
24    
25    checkpoint46k_post
26    o fixed the verification/global_ocean.90x40x15 experiment:
27     - new bathymetry (the world according to A., JMC, and M.)
28     - new initial fields and forcing fields (*.bin files)
29     - new POLY3.COEFFS (for the next release one should switch to a full
30       equation of state: JMD95P or MDJWF)
31     - fixed several errors and redundancies in the data file
32     - experiment uses looped cells
33     - added matlab directory with diagnostic scripts for plotting of output
34    
35    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
36     - read AIM physics parameters from a file (data.aimphys)
37     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
38    
39    checkpoint46j_post
40    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
41    o move wVel computation at the end of the time step, in S/R integr_continuity
42    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
43    o update timeave pkg for wVel diagnostic.
44    checkpoint46j_pre
45    
46    checkpoint46i_post
47    o Clean up AIM package (and keep the results unchanged):
48      include CPP_OPTION and use IMPLICT NONE in all routines ;
49      declare all the variables _RL ; use _d 0 for all numerical constants.
50      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
51    
52    checkpoint46h_post
53    o cleaned up the use of rhoNil and rhoConst.
54      - rhoNil should only appear in the LINEAR equation of state, everywhere
55        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
56        and the dynamical equations are all divided by rhoConst
57    o introduced new parameter rhoConstFresh, a reference density of fresh
58      water, to remove the fresh water flux's dependence on rhoNil. The default
59      value is 999.8 kg/m^3
60    o cleanup up external_forcing.F and external_forcing_surf.F
61      - can now be used by both OCEANIC and OCEANICP
62    checkpoint46h_pre
63    
64     Added code to convert surface volume flux (fresh water) into
65     a mass flux when using P coordinates in the ocean (OCEANICP).
66     Note: It assumes you have set rho0=rhoConst=density of fresh water.
67    
68    checkpoint46g_post
69    o Include a new diagnostic variable phiHydLow for the ocean model
70      - in z-coordinates, it is the bottom pressure anomaly
71      - in p-coordinates, it is the sea surface elevation
72      - in both cases, these variable have global drift, reflecting the mass
73        drift in z-coordinates and the volume drift in p-coordinates
74      - included time averaging for phiHydLow, be aware of the drift!
75    o depth-dependent computation of Bo_surf for pressure coordinates
76      in the ocean (buoyancyRelation='OCEANICP')
77      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
78        Theta, Salinity, and Pressure in the parameter list. This routine is
79        presently contained in find_rho.F. This routine does not give the
80        correct density for 'POLY3', which would be a z-dependent reference
81        density.
82    o cleaned up find_rho
83      - removed obsolete 'eqn' from the parameter list.
84    o added two new verification experiments: gop and goz
85      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
86    checkpoint46g_pre
87    
88    checkpoint46f_post
89    o Enable tangent linear (forward mode) gradient checks:
90      - extended active file handling to g_... files
91      - added TANGENT_SIMULATION to theSimulationMode
92      - extended grdchk package accordingly
93    o added tangent linear setup in verification/carbon/code_ftl
94    o added adjoint setup in verification/front_relax/code_ad
95    
96    checkpoint46e_post
97    o Added new equation of state -> MDJWF
98      - EOS of McDougall et al., 2002, JAOT, submitted
99      - caveat: the equation of state is only valid for a smaller (more
100        realistic?) range of values than JMD95P/Z and UNESCO
101      - added masks to the calculation of pressure in store_pressure
102      - added more check values for density in check_eos (ini_eos.F), some of
103        the old check values are out of the range of the MDJWF-eos, so don't
104        expect perfect matches for those
105    checkpoint46e_pre
106    
107    checkpoint46d_post
108    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
109      'OCEANICP', also initialised field pressure correctly in ini_eos in the
110      case of pressure coordinates. eosType='JMD95Z' in
111      combination with buoyancyRelation='OCEANICP' now causes an error.
112    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
113      in find_alpha/beta.
114    checkpoint46d_pre
115    
116    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
117      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
118    
119    checkpoint46c_post
120    o Changes necessary for ocean in p-coordinates
121     -  Added new buoyancy relation = 'OCEANICP'
122     -  Added new parameters = gravitySign (this used to be contained inside
123        the factor dRdZ which I added when we first switched to R coordinates).
124     X GM/Redi is not compatible (yet)
125     X bottom drag and no-slip need to be debugged.
126    checkpoint46c_pre
127    
128    checkpoint46b_post
129    o Added new equation of state -> JMD95Z and JMD95P
130      - EOS of Jackett and McDougall, 1995, JAOT
131      - moved all EOS parameters into EOS.h
132      - new routines ini_eos.F, store_pressure.F
133    o Added UNESCO EOS, but not recommended because it requires
134      in-situ temperature (see JMD95)
135    o Modified formatting for knudsen2.f in utils/knudsen2 and added
136      unesco.f to be used with POLY3
137    checkpoint46b_pre
138    
139    checkpoint46a_post
140    o Added (atmospheric) pressure loading
141      - new field in FFIELDS.h, etc...
142      - new cpp flag ATMOSPHERIC_LOADING
143    o Changed hFacC to _hFacC in calc_phi_hyd.F
144    o Added SHORTWAVE_HEATING to some files for consistency
145    checkpoint46a_pre
146    
147    checkpoint46
148    further merges from release1_p5
149    o new ctrl package
150      - adopted from ECCO environment to enable optimization
151      - added Eliassen Palm fluxes to controls
152    o added Eliassen Palm flux controls to gradient check package
153    o cost package
154      - Compatible with new ctrl package
155      - added Eliassen Palm cost hooks
156      - modif's of existing cost functions
157    o Adjoint-related bug fixes in kpp:
158      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
159      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
160    o autodiff package
161      - flow directives:
162        + new for S/R do_the_model_io
163        + enhanced for S/R checkpoint
164        + new gmredi.flow
165      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
166        disable adcommon.h/g_common.h by default.
167      - fixed problem for adjoint of global_max
168    o modified verification/carbon/
169    o New setup for adjoint of global_ocean
170    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
171    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
172    o incorporated hooks for sponge layer code (external_forcing.F)
173    
174    checkpoint45d_post
175    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
176    o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
177      (affects plume_on_slope "cg2d" output)
178    o add new parameter deltaTfreesurf for free-surface time stepping
179    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
180    o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
181    o change phiMin in exp1 (to agree with documentation)
182    o add new flags:
183     - T,S forcing inside/outside Adams-Bashforth
184     - turn off temp,salt advection and/or forcing
185     - for each tracer, define internal flag for multiDimAdvection & A-B
186    o monitor: change definition of KE to check conservation of Energy
187    
188    checkpoint45c_post
189    o Removed f90 comments ("!")
190    o Modified initialisations to enable exf package for MITgcm
191      (without invoking ECCO_PACKAGE).
192    o modifications to gradient check package (Martin Losch)
193      - enable centered differences
194      - modified format of standard output
195    
196    checkpoint45b_post
197    o cleaned exchange calls in cg2d
198    o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
199    o included CPP option SINGLE_LAYER_MODE in thermodynamics
200      to configure barotropic setup (Martin Losch)
201    o moved some initialisations within bi,bj loop in dynamics
202      (TAF flow dependency)
203    o in initialise_varia, moved call packages_init_variables
204      before convective_adjustment_init
205      (corresponding adjustment of TAF tape initialisation).
206    o in calc_diffusivity/calc_viscosity extended domain to full overlap.
207    
208    checkpoint45a_post
209    o compute Rho over the whole domain (extend iMin,jMin indices)
210    o specific exchange for X-slice domain (case Ny=1)
211    o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
212    o solve_for_pressure : set cg2d_x to zero where OBCS are applied
213    
214    checkpoint44h_post = checkpoint45
215    o Fix to restore differentiability:
216      place at which packages_init_variables is called in
217      initialise_varia is crucial for reverse control flow.
218    o modifications in GMRedi to enable stable adjoint
219      (corresponding modif's in thermodynamics, dynamics)
220    o added missing hook for sponge layer code in external_forcing
221    o modified test cost functions
222    o storing in gad_advection (plus removal of write(0,*)!
223    o missing headers TR1.h added in convective_adjustment routines
224    o errorMessageUnit set non-equal zero in eeboot
225      (conflict on some platforms, e.g. IBM SP3)
226    o modified carbon verif.
227    
228    checkpoint44h_pre
229    o vertical grid option: allow to put the Interface at the middle between
230      2 cell-centers ; replace delZ in pkg/kpp by drF.
231    o GM Advective form: Tracers are advected using the residual transport (=
232      Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
233    
234    checkpoint44g_post
235    o fix surface correction term in multiDimAdvection (affects plume_on_slope
236      results) ; ifdef missing in thermodynamics.F
237    
238    checkpoint44f_pre,checkpoint44f_post
239    o added PTRACERS package
240      This allows an arbitrary number of passive tracers to be integrated
241      forward simultaneously with the dynamicaly model.
242      + Implemented so far:
243        - basic forward algorithm (time-stepping, advection, diffusion, convection)
244        - I/O and checkpointing
245        - GM/Redi  *but*  using the GM/Redi coefficient of Salt
246      + Not implemented so far:
247        - KPP
248        - OBCS
249      + No specific example supplied (yet) but global_ocean.90x40x15 has the
250        necessary data.ptracer file. Simply use -enable=ptracers and uncomment
251        line in data.pkg.
252      + This package is disabled by default since it increases storage.
253    
254    
255    o testscript: added -cleanup option
256    o Shap_filt: a) new shap_filt S/R to use no-slip BC with S2 filter
257                 b) enable to filter 2D fields.
258    
259    checkpoint44e_pre,post
260    o re-wrote convective adjustment to use pre-calculated weights
261      Affects: model/src/convective_adjustment.F, convective_adjustment_ini.F
262      Adds:    model/src/convective_weights.F, convectively_mixtracer.F
263      Original calls to convect() still in place.
264    
265    chkpt44d_pre,post
266    o added missing EXCLUDE_MONITOR flags
267    o changed "e" to "_d" in gmredi_slope_limit, gmredi_slope_psi
268      (incompatible typ in MIN/MAX expressions caused problems
269      on IBM SP3)
270    o in genmake added variable MAKEDEPEND
271      plus resetting for case SunOS
272    o added timer_stats.c routine for IBM SP3
273    o removed variables in dynamics
274    !!! I forgot to create tag chkpt44d_pre !!!
275    !!! But chkpt44d_pre = chkpt44c_post    !!!
276    
277    o real fresh water flux implemented with non-linear free-surface.
278    
279    chkpt44c_pre,post
280    o few fix (mask in shap_s2, EmPmR in external_field_load,
281      USE_NATURAL_BCS in solve_for_P);
282    o add arguments myIter & myTime to S/R obcs_calc & solve_for_P
283    
284    checkpoint44b_pre/_post
285    o merge of relevant stuff from the ecco-branch:
286      - genmake: removed $S64 overwrite for case SunOS
287      - pkg/exf: update and corrections for field swapping and obcs
288      - pkg/ecco: parameter lists for the_model_main, the_main_loop
289                  harmonized between ECCO and MITgcm
290      - pkg/autodiff: added flow directives for obcs, mdsio_gl_slice
291                      updated checkpointing_lev... lists for obcs
292      - model/src: minor changes in forward_step, plot_field
293                   added directive for divided adjoint in the_main_loop
294      - pkg/mdsio: added mdsio_gl_slice
295    
296    o check parameters & config (chkpt44a_pre,post)
297    o OBC and NonLin_FrSurf.
298    
299    checkpoint44
300    o fix bug in mom_vi_del2uv
301    o select when filters are applied ; add options to zonal_filter (data.zonfilt)
302    o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
303    o update AIM experiments (NCEP input files)
304    o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
305    o added some stuff for AD
306    
307    checkpoint43
308    o added two new advection tests
309    o added global 4x4 degree ocean test
310    o added test of H&S94 with free surface on cube
311    o some final mods for gradient check, adjoint,...
312    
313    checkpoint42
314      Fixed AD-related problems:
315    o Store directives up-to-date with re-arranged Adams-Bashforth
316      (mainly thermodynamics.F)
317    o New store directives for multi-dim. advection schemes
318      * new CPP flag ALLOW_MULTI_DIM_ADVECTION
319      * new common block and key passkey
320      (mainly gad_advection.F)
321    o Modified store directives for split of dynamics/thermodynamics
322      for the case ALLOW_KPP
323    o Cleaned argument list for timestep_tracer.F
324    
325    checkpoint41
326    o re-formatted/added comments in prologues of key subroutines
327      to work with protex
328    
329    checkpoint40
330    o moved calc_gs, calc_gt and calc_tr1 back to model/src
331    o added FLT (floats) package from Arne along with demo. experiment
332    o re-arranged Adams-Bashforth scheme for tracers to allow easier
333      implementation of forward-in-time forcing terms
334    o more mods for non-linear free-surface including new variable
335    o modified multi-dim method to work on cube
336    o bug fix in KPP (from DM)
337    
338    checkpoint40pre9
339    o added DST advection schemes
340    o fix MPI bug on SGI's
341    o modifications for non-linear free-surface
342    o fixed conditionals for fixed flow/passive tracer only mode
343    o added tension/strain form of stress tensor
344    o changes to commenting of arguments for TAF/TAMC
345    o added/updated many matlab scripts
346    o added multi-dimensional advection method for tracers
347      
348    checkpoint40pre8
349    o new package rw/
350      Added method for dumping intermediate local arrays:
351      mdsio_writetile - same as mdsio_writefield except works from inside
352                        bi,bj loop
353      mdsio_writelocal - same as mdsio_writetile except works for local
354                         arrays
355      write_local_r? - higher-level wrapper for mdsio_writelocal
356      Controlled by diagFreq. Defaults to zero (ie. no dumps)
357      Example given at end of mom_vecinv.F that dumps some local arrays.
358    o replaced calc_mom_rhs.F by mom_fluxform.F/mom_vecinc.F to
359      control flux-form versus vector invariant code.
360      Switch is runtime flag vectorInvariantMomentum (defaults to false)
361      or genmake -DISABLE ...
362    o TAMC-related update to cope with mom_fluxform.F/mom_vecinc.F
363      (additional storing is now needed for case vecinv;
364      currently nothing implemented to switch this storing off
365      in case fluxform is used since no CPP flag available).
366    
367    checkpoint40pre7
368    o bug fix in dynamics.F
369      calc_viscosity called before k=1,Nr loop.
370    o added some #ifdef's ALLOW_PASSIVE_TRACER
371    o cleaned initialisations in ctrl_map_ini
372      related to TAF
373    
374    checkpoint40pre6
375    o split dynamics into thermodynamics & dynamics
376    o corresponding split of calc_diffusivity into
377      calc_diffusivity, calc_viscosity
378      (kpp_calc_diff, kpp_calc_visc).
379    o Added diffkr, kapgm to control variables
380    o bug fix in gmredi_slope_limit for ldd97
381    
382    checkpoint40pre5
383    o proper initialization of Adams-Bashforth time stepping
384      + uses forward step for very first step of model (iter=0)
385    o re-generated *all* output since almost all output is modified by this
386      change (sorry but we've been putting this one off for about 2 years)
387      + natl_box, aim.5l_Equatorial_Channel and aim.5l_zon-ave were
388        *not* regenerated since they are already out of date and I don't
389        want to create the impression that they are suddenly working.
390    o removed KAP stuff for DEC's
391    o modified/added many .cvsignore files in */code and */input
392    o added new expt "solid-body.cs-32x32x1"
393      + this uses an alternative form of ini_curvilinear_grid.F which
394        is not necessarily any better than the current one...
395    
396    checkpoint40pre4
397    o added re-initialisations of utrans,vtrans,rtrans in
398      calc_common_factors which are crucial for TAF.
399    o extended iMin,jMin range for calc_common_factors,
400      calc_diffusivity
401    o added option ALLOW_PASSIVE_TRACER
402    o a few minor updates and fixes
403    
404    checkpoint40pre3
405    o created calc_gtr1.F for gad package
406    o split the_main_loop and re-introduced forward_step
407    o some recomputations of nIter0 for TAMC
408    
409    checkpoint40pre2
410    o Updated to latest branch of AJA, JMC
411    o Added gradient check package
412    o Added routines for passive tracer handling
413    o Added carbon sequestration sensitivity experiment
414    
415    checkpoint39
416     o Modifications and fixes to support TAMC
417       (mainly missing or wrong directives)
418     o Corrected common blocks when fooling TAMC to produce adjoint I/O
419       in addummy_in_stepping
420     o Updated verification/vero/ (bug fixes in code/, correct pickups in input/)
421     o Enabled "sliced" (xz-,yz-) exchanges, needed for obcs.
422     o Included following packages:
423       cal: calendar
424       exf: external forcing
425       ecco: essential routines to control use of cal, exf
426             (NB: this is not the full ECCO environment)
427     o disabled some packages by default in genmake
428    
429    checkpoint38
430     o see notes_c37_adj.txt
431     o corrected wrong layer index in external_forcing_t
432     o replaced the_main_loop/forward_step by the_main_loop
433     o removed forceoutput from write_state
434       (replaced criteria for initial/final state)
435     o added runtime flag for pre-C35 pickups: usePickupBeforeC35
436    
437    checkpoint37
438     o mdsio.F routine split and packaged in pkg/mdsio
439       (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
440        used unless genmake -disable=mdsio)
441     o allow a more precise surface-geopotential gradient for the atmosphere
442       taking into account the change in space of Alpha (=1/rho) at the surface.
443     o variable "etaN" (replace cg2d_x) is the surface R-anomaly [r unit]
444       (ocean: sea surface height [m] / atmos: surface pressure anomaly [Pa])
445     o Change units: Phi_Hydrostatic (=phiHyd), Phi_Surface(=cg2d_x) and
446       Phi_NonHydrostatic (=cg3d_x), all have now the dimension of a potential
447       [m2/s2] (pressure/rhoConst in the ocean ; Geo-Potential in the atmosphere).
448     o Time-Average diagnostics defined as a pseudo package "timeave".
449     o pickup files : old pickup (before c35) did not work with new code (c35
450       and after) unless activating 2 commented lines in initialise-varia.
451     o Non-Hydrostatic pickup file Pb fixed.
452     o bug with Rigid-lid version (since c35) fixed.  
453    
454    checkpoint36
455     o implement Crank-Nickelson barotropic time-stepping
456     o recover Time-Average diagnostics
457     o fix Pb in checkpoint (PR#19)
458     o AIM become a standard package ; clean unused CPP_kees
459    
460    checkpoint35
461     o subtantial rewrite of dynamics.f
462     o allows staggered time-stepping
463     o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
464     o added bottom drag (linear + quadratic)
465    
466    checkpoint34
467     o Modified exchange routines for correct reverse simulation.
468     o Added verification output to comply with bug fix in impldiff.F
469       as of c33 (exp2, natl_box).
470     o Corrected store directives in dynamics.F
471     o Corrected array boundaries in impldiff.F
472     o Corrected array dimensions in gmredi.
473       Added temporary scalars to avoid storage by TAMC (gmredi, kpp).
474     o Added routine GLOBAL_SUM_INT to global_sum.F
475     o Added mdsio_gl.F for ECCO purposes.
476    
477    checkpoint33
478     o Fixed bug in lower BC in impldiff.F
479     o Fixed confusion about units of forcing arrays in FFIELDS.h
480       namely Fu,Fv,Qnet,Qsw,EmPmR:
481       - Removed verification/natl_box/code/external_fields_scale.F
482         (did not differ from that in model/src)
483       - Changed units of fu,fv,Qnet,Qsw,EmPmR back to proper units
484         (see FFIELDS.h for description)
485       - Scale fu,fv,Qnet,Qsw,EmPmR when used in external_forcing_surf.F,
486         kpp_calc.F and kpp_transport_t.F
487       - Removed model/src/external_fields_scale.F and calls to it
488       - verification/natl_box uses flux data with "atmospheric" sign so
489         a special version of external_fields_load.F is used to
490         change the data as it's read in. This way, the arrays
491         have the right units and signs at all times tha a user could
492         possibly use them.
493     o Corrected genmake to delete a temporary file during configuration
494    
495    checkpoint32
496     o Scaling of forcing fields moved from external_forcing.F to
497       external_fields_scale.F, called directly after loading fields.
498     o Surface relaxation terms added to surface tendency fields in
499       extra subroutine.
500     o impldiff.F changed to avoid storing by TAMC of huge intermediate
501       fields.
502     o Changes in GMRedi to comply with packaging structure.
503     o Modifications and bug fixes in KPP package.
504     o Verification experiment for KPP added (verification/nat_box/)
505    
506    checkpoint31
507     o Packages interface brought in line with defined standard
508       -> new routines packages_...F
509       -> changes in initialise_fixed.F, initialise_varia.F
510       -> enables initialisation interface for ECCO package
511     o Rescaling of external forcing fields immediately after read
512       (removed from external_forcing.F)
513       -> new: surface_fields_scale.F
514       -> affects ini_foorcing.F, external_fields_load.F
515     o Computation of surface tendencies before tendency updates.
516       -> new: external_forcing_surf.F
517     o Change of variable names useGMRedi, useKPP, useECCO
518     o Further changes in dynamics.F, impldiff.F for TAMC
519     o Tested for experiments 0, 2, 4.
520       - not yet tested for GMRedi.
521       - not yet tested for KPP.
522    
523    checkpoint30
524     o Updates for OBCs
525     o New experiment for test OBCs (internal_wave)
526     o New output.txt in verification/exp4/results/
527     o Updates for KPP: calculation of viscosity corrected, new variables
528       kpp_dumpFreq and kpp_taveFreq
529     o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
530       and entry for T90 in genmake
531    
532    checkpoint29
533     o packaged KPP and GM/Redi
534    
535    checkpoint28
536     o Corrected initialization of hFacMin for difference vertical coordinates
537     o Modified calculation of partial cell thickness to more robust algorithm
538     o config_summary.F: replaced write_1D_... by write_0D_...
539       read_write.F: added subroutines write_0D_...
540     o routines calc_common_factors, calc_gs, calc_gt, calc_phi_hyd, find_rho:
541       included some initialisations required for TAMC.
542     o routine calc_isoslopes: modified sqrt computation to make it
543       differentiable for zero argument.
544     o routines dynamics, impldiff:
545       included store directives and tape key computations required for TAMC.
546     o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
547    
548    checkpoint27
549     o fixed calc_isoslopes() to so that cancellation of terms in tensor
550       formulation works properly with variable resolution.
551     o restructured the calling tree between the_model_main() and dynamics()
552     o split initialise() into initialise_fixed() and initialise_varia()
553     o introduced initialization file pSurfInitFile for free surface (cg2d_x)
554       in new routine ini_psurf()
555    
556  checkpoint26  checkpoint26
557   o moved some #ifdef in optional routines to encompass everything   o moved some #ifdef in optional routines to encompass everything
558     except the argument declarations. This was using up some memory.     except the argument declarations. This was using up some memory.

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