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revision 1.390 by jmc, Sun Nov 21 22:22:31 2004 UTC revision 1.802 by jmc, Mon Apr 30 16:03:40 2007 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/thsice: rename run-time parameters:
8       himin       -> hIceMin
9       himin0      -> hThinIce
10       hihig       -> hThickIce
11       i0          -> i0swFrac
12       transCoef   -> bMeltCoef
13       frac_energy -> fracMelting
14      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
15       with default values (for now) that do not change the results.
16      remove old version of thsice vars advection in pkg/seaice.
17    o in FFIELDS.h:
18      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
19      - make pLoad & sIceLoad always available (but still only used if
20         ATMOSPHERIC_LOADING is #define).
21    o pkg/kpp: replaced _KPP_RL with _RL
22    o bug fixes for vertical diffusivity computations when both KPP and
23        3D diffusivity arrays are used.
24    o pkg/seaice: fix bug in evp solver, while doing that
25      - change (improve?) discretization of stress computations for both
26        cgrid-lsr and evp solver
27      - add a new routine to compute strain rates
28      - the above changes lab_sea results
29      - add no slip conditions for evp solver (off by default), lsr-version
30        may follow
31      - fix exchange for shear at Z-points (does not change lab_sea)
32      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
33        (to force the user to pick a time step since there is not "safe" way
34        of choosing it)
35      - add principal stress diagnostics
36      - rearrange fields for evp a little to avoid having to call a: too many
37        exchanges and b: exchanges for stress trensor components which we do
38        not have.
39      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
40        of evp, complete rewrite for lsr case (latter is does not yet work
41        in all cases)
42    o pkg/kpp: add code to have mixing in shelf ice caverns
43    
44    checkpoint59
45    o pkg/exf:
46      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
47        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
48      - move exf header files from lower_case.h to UPPER_CASE.h ;
49        add missing cvs Header & Name
50      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
51      - add namelist param. selectStressGridPosition, exf_monFreq
52      - retire many _CLIM routines, and remove data.exf_clim
53        + params moved to data.exf
54        + climsst, climsss now handled by exf_set_gen, i.e.
55          climss?period=0 refers to constant field,
56          climss?period=-12 to monthly forcing
57      - split up namelists in data.exf
58    o pkg/seaice:
59      - remove seaice_exch and seaice_exch_uv
60      - remove superfluous exchange of theta
61      - add myThid to seaice_budget_ocean/ice
62      - add new interface for atmospheric wind forcing (C-grid only)
63        + new routine
64        + two new field (taux, tauy for stress over ice)
65        + removed one global field (DAIRN) for C-grid case only
66    o pkg/thsise
67      - 2nd set of modifs for thsice adjoint in conjunction with exf
68    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
69    
70    checkpoint58y_post
71    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
72      vertical diffusivity, similar to that in MOM4; turned on using
73      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
74      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
75    o Added capability for 3D specification of background vertical diffusion
76      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
77      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
78      "data" file that contains the 3D vertical diffusivity coefficients.
79    o ice dynamics (pkg/seaice) with thsice thermodynamics:
80      - add code within pkg thsice to advect & diffuse sea-ice fields
81      similar to (and will replace) what has been added in  seaice_advdiff.F,
82      but: - conserving Mass, Heat & Salt.
83           - better when using non-linear advection scheme (not yet fully tested)
84           - can also be used in atmospheric set-up (for now, only the diffusion).
85    
86    checkpoint58x_post
87    o IO option for global-file compact format:
88      - add options when generating topology (utils/exch2/matlab-topology-generator)
89      - add I/O capability (pkg/mdsio).
90      - adapt utils/matlab/rdmds.m to read this format.
91      for now long-line format not yet supported by pkg/mdsio (& exch2).
92    o shelfice: add a few diagnostics
93    
94    checkpoint58w_post
95    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
96      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
97      (and replace horiVertRatio in NH code).
98      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
99                         and tutorial_plume_on_slope (sensitive to truncation)
100    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
101      directly to drive seaice model (C-grid only)
102    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
103     - reintroduce computation of wind from stress,
104     - compute tau (in exf_bulkformulae.F) from windstress averaged to
105       mass points to avoid tau = 0
106     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
107    o rdmnc.m: make it work with "global" files created with gluemnc
108    o rdmnc.m : some improvements in dealing with singleton dimension
109      (tested on all testreport mnc output files).
110    o genmake2: disable pkg/profiles if netcdf test fails.
111    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
112    o move call to cal_readparms up to make calendar parameters/variable available
113      to all packages
114    
115    checkpoint58v_post
116    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
117      useDynP_inEos_Zc tested.
118    o pkg/exf: changes to properly interpolate/mask/scale initial fields
119    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
120      and portions thereof.  See read_cs.txt for description and examples.
121    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
122      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
123      following the great-circle arc between those 2 points.
124    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
125      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
126    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
127     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
128     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
129     - still needs work (not working with some options ; efficiency to improve)
130       and serious testing.
131     - use this scheme for temperature & salinity in 2 advection test exp.:
132       advect_xy & advect_xz, respectively.
133    
134    checkpoint58u_post
135    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
136    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
137    o testreport: add option "-skipdir" to skip some test.
138    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
139      momentum calculation.
140    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
141    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
142      remove checkpoint.F and the_correction_step.F (no longer used);
143      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
144    o add option (linFSConserveTr) to correct for tracer source/sink due to
145      Linear Free surface
146    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
147    o pkg/thsice: fix reading mnc-pickups
148    
149    checkpoint58t_post
150    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
151    o pkg/mdsio:
152     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
153       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
154       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
155     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
156     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
157       either MDS_READ_FIELD or MDS_WRITE_FIELD )
158     - new S/R (to replace MDSWRITEMETA), which allows to write more
159       informations (variable names, time ...) to meta files.
160     - modify rdmds.m to give back the meta file content.
161    o pkg/diagnostics: change vertical interpolation to be safer, and more
162       flexible (define p-levels to interpolate to in data.diagnostics);
163      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
164       diagnostic pointer.
165    o pkg/seaice: more cleaning up of seaice_growth, added many comments
166    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
167    o fix multi-category seaice:
168     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
169       SEAICE_MULTICATEGORY
170     - fix short wave heat flux
171    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
172       and allow to use EVP solver. Change forward lab_sea: test both EVP
173       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
174    o Initial check-in of lab_sea adjoint
175      (very similar to natl_box_adjoint/code_seaice)
176      * used C-grid and EVP solver
177      * used KPP, GM/Redi
178      * uses inAdExact=.TRUE.
179      * gradient checks fail for both ADM and TLM
180        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
181        f.d. gradients actually seem more problematic than ADM, TLM gradients;
182        issue is related to forward mismatch between g77 an ifort
183    o pkg/seaice: overhaul of thermodynamics
184     - growth.F and groatb.F are replaced by new routine seaice_growth.F
185     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
186     - move a few global fields out of SEAICE.h into seaice_growth.F and
187       make them 2D (FICE/QNETO/ ...)
188     - remove FO (it is the same as QNETO)
189     - introduce a few local fields to avoid modifying external fields such
190       as atemp, etc.
191    
192    checkpoint58s_post
193    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
194      changed exf_set_gen.F so that
195        genperiod=0 means input file is one time-constant field and
196        genperiod=-12 means input file contains 12 monthly means
197    o CG2D: use pre-computed solver main-diagonal (stored in common block);
198      this affects truncation error ; generate new output file for exp. which
199      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
200        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
201        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
202        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
203        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
204        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
205    o start implementation of deep-atmosphere and anelastic formulation
206    o verification: remove 2nd copy of input files and use script "prepare_run"
207      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
208    o mom_common/vecinv/fluxform: fix a few initialisation isssues
209    o profiles: fix for multithreaded case
210    
211    o diagnostics: rename few diags:
212      s/'PRESSURE'/'RCENTER '/g
213      s/'TICE    '/'oceFreez'/g
214      s/'TAUX    '/'oceTAUX '/g
215      s/'TAUY    '/'oceTAUY '/g
216      s/'SWFLUX  '/'oceQsw  '/g
217      s/DIFx/DFxE/g
218      s/DIFy/DFyE/g
219      and add few ocean-forcing diagnostics:
220      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
221    o modifications to pkg/seaice/growth.F and budget.F, which change results of
222      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
223      as actual snow thickness.  It now refers everywhere to effective snow
224      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
225    
226    checkpoint58r_post
227    o modifications to pkg/seaice/growth.F, which change results of
228      lab_sea experiment: fixes pertain to melting snow over open water, to
229      masking EVAP under sea ice, and to using the correct AREA variable for
230      computations of EVAP, PRECIP, HSNOW, and GHEFF
231    o add ability to read bathy, salt, and theta using MNC (off by def)
232    o add flooding algorithm and advection of HSNOW for pkg/seaice;
233      both are turned off by default and do no change any results
234    o seaice advection with pkg/thsice: a step toward the use of non-linear
235      advection scheme, but #ifdef or commented out for now (requires more EXCH).
236    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
237      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
238      in natl_box (affects results @ truncation level: update output.txt)
239    o multi-threading and IO:
240      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
241      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
242        (needed to work with SingleCpuIO): tested in all verif. exp.
243    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
244      affects the results (but none of the verification test uses this scheme).
245    o Adding some pkg/diagnostics capability to pkg/seaice
246      (will certainly be subject to changes)
247    o ctrl: adding new control variables:
248      lwflux, lwdown, evap, snowprecip, apressure, runoff
249    
250    checkpoint58q_post
251    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
252      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
253      high_res_cube configuration by 4% on Columbia.
254    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
255      add (in global_with_exf/code) a version of EXF_INTERP_READ without
256      dynamical allocation (seems to work in multi-threaded).
257    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
258      single CPU io) so that TAF does not have to see EESUPPORT.h
259    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
260    
261    checkpoint58p_post
262    o obcs: stop if obcs is used with useCDscheme = .true.
263    o shelfice:
264     - fix a sign error so that no slip at shelfice interface works
265     - remove stop for combination non-hydrostatic code and shelfice. That does
266       not mean, that the results are correct, but at least they are numerically
267       stable
268    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
269    o added adjoint exch routined for all exch*3d* routines
270      and updated flow directives
271    
272    checkpoint58o_post
273    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
274      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
275    o change controling S/R for writing pickup file (new S/R do_write_pickup)
276      and clean-up reading/writing of pickup files.
277    o fix local version of read/write pickup (NH part) in rotating_tank/code
278    o simplify EXCH interface:
279     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
280     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
281    o added the regrid package
282    o shelfice:
283     - add a simple boundary layer scheme to reduce noise
284     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
285    
286    checkpoint58n_post
287    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
288       local variable (not in common block).
289    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
290      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
291      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
292        to work with SingleCpuIO.
293    o add "_d 0" to real constant of pkg/cfc subroutines ;
294       update exp. cfc_exemple & tutorial_cfc_offline output files.
295    o multi-threading and IO:
296      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
297        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
298      - barrier before and after reading.
299      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
300      - avoid using MDS_WRITELOCAL for LAND pkg output.
301      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
302        common-block variables ; Allows multi-threading with master-thread IO.
303    o change default MAX_NO_THREADS from 32 to 4 ;
304      and stop cleanly when MAX_NO_THREADS is too small.
305    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
306    
307    checkpoint58m_post
308    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
309       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
310    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
311       keep global_ocean.90x40x15 (for AD testing) with former secondary test
312       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
313    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
314        add MITgcm_tutorials (= code + all the tutorials)
315    o ecco, option to compute cost for total ssh (mean+anom)
316    o consistent with addition of ptracer and ssh in pkg/profiles
317    o profiles: adding ptracer and ssh
318    o testreport: change multi-test output-file name
319      (from output.txt.{name} to output.{name}.txt)
320    o profiles: now ok for mutli-tiles case
321    o seaice: add 4 parameters for different advection schemes for area,
322      (effective) seaice thickness, enthalphy, and snow height. Their default
323      is the standard parameter SEAICEadvScheme
324    o calc_gw:
325     - add cosFacU in zonal viscous flux (harmonic.visc.).
326     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
327       of tutorial_plume_on_slope.
328    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
329    o calc_gw: true flux-form, account for horizontal grid spacing.
330      update rotating_tank results, but not plume_on_slope (affected at
331      truncation level, 11 digits).
332    
333    checkpoint58l_post
334    o calc_gw:
335     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
336     - remove side-drag for now (need to fix it); update plume_on_slope results.
337     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
338    o commit code to make SST/SSS weights spatially variable
339      (based on either variable in-situ or variable initial T/S weights)
340    o pkg/ecco:
341      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
342        now based on horizontally varying weights wthetaLev, wsaltLev
343      * cost_averagesflags now returns year indices in addition to day, month
344      * sflux balance is performed on annual basis
345        (sflxumm, sfluxmm2, bal_sfluxmm)
346      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
347        including separate counting and multipliers
348    o pkg/rbcs
349      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
350    
351    checkpoint58k_post
352    o testreport:
353     - always build in dir. "build" (if not there, mkdir build instead of building
354       & running in input)
355     - run in dir run (if it exists), in build otherwise.
356     - call prepare_run (if input/prepare_run exists)
357     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
358    o pkg/exf modifications to interpolation and rotation routines for more
359       reasonable treatment of North Pole singularity: for tracers North Pole
360       value is set to northernmost zonal-mean value, for zonal velocity it is
361       set to zero, and for meridional velocity it is set to northernmost value.
362    o pkg/exf/exf_check_range.F
363     - add tile index to diagnostics and move stop statement to the very
364       end of the routine.
365    o pkg/diagnostics: (diagnostics_main_init.F)
366      define title of isomorphic variables according to the current config.
367    o pkg/thsice with pkg/seaice dynamics:
368    - fix domain of computation (interior only, required for exf) and do exchanges
369    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
370    o towards a standard way of dealing with multi-threading in MONITOR
371      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
372    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
373       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
374    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
375    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
376    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
377       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
378    o tracer advection:
379     - clean-up and simplify calc_common_factors.F
380     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
381       advection subroutine (but still not used within DST advection S/R)
382    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
383    
384    checkpoint58j_post
385    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
386      from file (collects calls previously in FORWARD_STEP)
387    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
388    o adjoint store dir. adjusted accordingly
389    o genmake2
390      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
391    
392    checkpoint58i_post
393    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
394      on wind stress (SEAICEstressFactor defaults to 1.)
395    o Total number of Timers is finite (<=40): comment out 2 non-essential one
396      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
397    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
398      on CS-grid: no longer loosing mass.
399    o exf & curvilinear-grid: no longer modify longitude xC & xG.
400    o pkg/ggl90: fix sloppy output and fix a bug
401    o pkg/seaice: added SEAICEuseEVPpickup parameter
402      - Set to false in order to start EVP solver with
403        non-EVP pickup files when using SEAICEuseEVP
404      - fix sign error in diffusion in seaice_calc_rhs
405    
406    checkpoint58h_post
407    * Modifications for bottom topography control
408      o replace hFacC by _hFacC at various places
409      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
410      o add non-self-adjoint cg2d_nsa
411      o update autodiff support routines
412      o re-initialise hfac after ctrl_depth_ini
413      o works for 5x5 box, doesnt work for global_ocean.90x40x15
414    * Adding verification for 5x5 box (4-layer) bottom topography control
415    
416    checkpoint58g_post
417    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
418       used for mean seasonal cycle, mean diurnal cycle); add an example
419       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
420    o pkg/ggl90:
421      - add parameter (minimum surface kinetic energy)
422      - fix bug (avoiding division by zero)
423    o couple pkg/thsice to pkg/seaice:
424      - modify advection in seaice to accomodate new scalar fields to be advected
425      - only muliDimAdection scheme work with seaice/thsice
426      - mapping of thsice-variables to seaice-variables, back and forth
427      - does not break the verification experiments, but does not give the
428        desired results either
429    o pkg/seaice
430      - make (default) second order advection a bit less confusing?
431    
432    checkpoint58f_post
433    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
434      to pkg/seaice):
435      - new routines thsice_map_exf and thsice_get_exf provide the interface
436      - add an additional formal parameter to thsice_solve4temp
437    o pkg/exf:
438      - add new fields wspeed, snowprecip (to be able to couple to thsice)
439      - correct Stefan-Boltzmann constant
440      - new parameter for longwave surface emittance
441      - separate some stuff from exf_bulkformulae into new routines  
442        exf_radiation, exf_wind
443      - add new parameters and constants: longwave emissivity for ocean, ice
444        and snow, evaporation parameters over ice
445      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
446        either wind from stress or stress from wind
447    o pkg/thSIce:
448    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
449    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
450       and THSICE_CALC_THICKN
451    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
452    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
453      to make debugging easier.
454    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
455    o pkg/bulk_force:
456      - clean-up comments and parameters ;
457      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
458    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
459      generate new output for test-experiment: aim.5l_cs.thSI
460    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
461      testreport accordingly
462    
463    checkpoint58e_post
464    o SEAICE_CGRID adjoint done
465    o R_STAR adjoint implemented.
466      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
467      * need to sort out init. of h0facc, etc.
468    o Make pkg/profile fully independent of ecco,cost, etc. stuff
469      to be able to use it in pure forward.
470    
471    checkpoint58d_post
472    o upgrade simple test-experiment to tutorial example:
473     step.1: duplicate the experiment and (step.2) will remove the old copy.
474      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
475      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
476      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
477      tutorial_global_oce_biogeo    <- copy of dic_example
478      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
479      tutorial_plume_on_slope       <- copy of plume_on_slope
480      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
481      tutorial_global_oce_optim     <- empty for now (David ?)
482      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
483     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
484    o correct a sign problem in cost_scat.F
485    o obcs and ptracers: fix boundary conditions for advections schemes
486      with larger stencil
487    o thsice adjoint: start
488    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
489      completeness
490    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
491      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
492    o ptracers adjoint:
493      * avoid extensive recomputatations
494      * fix missing re-init. of gptr (missed by TAF)
495    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
496      me to turn off the excessive output to STDOUT that this package produces
497    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
498      and add those terms in Vector-Invariant formulation.
499    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
500      if the control period (xx_hfluxperiod etc) is 0
501    o in profiles pkg, clean routines and fix details
502    o in ecco pkg, reading ssh data:
503      fix problem in case the model does not start at iter0=0
504    o fix mnc-pickup/restart for ptracers
505    o new package prifiles:
506      code to compute profile-based cost by Gael Forget
507      (modifs in ecco, ctrl, autodiff)
508    o Benign bug fix in initialization (spotted by M. Mazloff) of
509      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
510    
511    checkpoint58c_post
512    o adjoint: finish NLFS adjoint and provide reference output in
513      verification/global_ocean.90x40x15/results_ad_nlfs
514    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
515      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
516      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
517      with SEAICE_CGRID defined.
518    o move calendarDumps from "data" to "data.cal" and clean-up the code
519      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
520    o add useEXF & useCAL flags (for now, set in hard-coded way)
521    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
522      (were missing in NH mode, and wrong in quasihydrostatic mode).
523      waiting for Chris updated version of calc_gw to add those CALLs.
524    o fix bug in quasihydrostatic S/R ;
525      add a test for this option: global_ocean.90x40x15.qshyd
526    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
527      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
528    o add on/off flag useOffLine for package OFFLINE
529    o seaice:
530      - modify advection so that it works also on the C-grid
531      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
532        problem in multi-tile runs with C-grid
533      - add flags for clipping ice velocities and/or masking solver forcing
534      - fix drag (ocean on ice) formulation and a bug that caused noise in the
535        C-grid solver
536      - added a few comments to seaice_diffusion.F
537      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
538        are now exclusive)
539      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
540        required re-ordering the code a little:
541       + make DAIRN global variable (defined in SEAICE)
542       + move computation of the viscosities eta and zeta into a new separate
543         routine (because I need to recompute them in seaice_ocean_stress.F)
544    
545    checkpoint58b_post
546    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
547      update output.txt of exp. aim.5l_cs.thSI
548    o various mnc cleanups and improvements:
549      + shrink lookup tables by factor of ~4
550      + better error reporting when running out of lookup space
551      + able to handle longer path/file names (up to 500 chars)
552    o adjoint:
553      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
554      - TBD: "hidden" mom_vecinv recomp. in dynamics
555    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
556     (allow to differentiate between forcing components using new integer flags:
557      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
558     and add new flag to put Dissipation tendency out of Adams-Bashforth.
559    o ecco
560      - enable trend removal from SSH anomaly obs.
561    o adjoint
562      - a fix for PmEpR when #undef EXACT_CONSERV
563      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
564      - try to fix "hidden" recomp. in forward_step for NLFS
565        (NLFS seems broken sometimes after I checked it in)
566    o seaice:
567     - add c-grid version of the dynamic solver:
568       + three new routines that are the c-grid substitute lsr, dynsolver
569         and ostres
570       + put a few fields that were local to dynsolver into global common
571         blocks, so that I can move the computation of stresses etc into
572         seaice_lsr (saves coding but may break the adjoint).
573     - replace more hardwired parameters by runtime parameters
574     - add ice masks that mask the rhs of the implicit solvers where there
575       is no ice (commented out in seaice_dynsolver, because i am not sure
576       if this works properly), eventually this should replace the clipping
577       of ice velocities in seaice_dynsolver to +/-40cm/s.
578    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
579      include it only where its needed
580    o move balancing of fluxes before the call of external_forcing_surf
581    o seaice:
582      - correct units of turning angles (now they are really in degrees)
583      - move computation of GWATX/Y out of main routine into dynsolver
584      - initialize GWATX/Y in seaice_init
585    o Apply mask on Fresh-Water flux (needed for SSH forcing).
586      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
587    o seaice: add runtime flags for turning angles (default to zero)
588    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
589      and trend from exf forcing and ctrl control adjustments
590    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
591      (since checkpoint57x_post)
592    o change the default rotation period to 86164.s = the Earth rotation
593    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
594      and based on a reference stratification. Tested within hs94.cs-32x32x5.
595    o seaice advection: add code for choosing between the default (2nd order
596      central differences) and multiDim advection schemes provided by
597      pkg/generic_advdiff
598    o seaice:
599      - removed all references to SEAICE_GRID.h fields from
600        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
601        (cubed-sphere configuration will change a little)
602      - grid computations in seaice_init are obsolete now.
603      - cleaned up code a little so that is easier to read (hopefully).
604      - added new (better?) discretizations of default advection and diffusion
605        (turn on with SEAICEuseFluxForm)
606      - replace 1 in 3d global fields by kSurface in growth.F
607      
608    checkpoint58a_post
609    o seaice:
610      - bug fix in advect.F
611    o shelfice:
612      - separate shelfice load anomaly from pload (breaks with time
613        dependent forcing), => introduce constant field shelficeLoadAnomaly.
614        Its default is 0., but it may be computed more cleverly from (unknown)
615        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
616        done offline. A good approximation of the pressure load anomaly is
617        necessary to avoid large initial adjustment processes underneath
618        deep-reaching shelfice.
619      - small fix in ISOMIP shelfice_thermodynamics
620      - add more sophisticated thermodynamics of Hellmer (1989), this is
621        now the default
622      - give a few constants more intuitive names
623    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
624      if bulk formulae are used in long integration (especially EmPmR). Turn
625      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
626      if balancePrintMean, the imbalance that is substracted is printed to
627      STDOUT.
628    o fix bug (typo) in obcs_apply_eta.F
629    o add a new package shelfice which enables us to model the circulation
630      underneath shelf-ice with draughts of hundreds of meters.
631     - works
632     - to do: + include improved thermodynamics
633              + check whether kSurfC (from model/inc/SURFACE.h) can be used
634                instead of new field kTopC
635              + can we use topoFile, Ro_surf and existing code in ini_depth.F
636                instead of new field R_shelfIce and new code in ini_depth.F
637                and ini_mask_etc.F?
638              + adjust vertical mixing schemes?
639    o seaice pkg:
640     - add a cpp-flag to include a simple formula for a salinity dependent
641       freezing point of sea water at the surface
642     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
643       meridional stresses are now different (and hopefully correct)
644    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
645       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
646       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
647    o pkg/diagnostics: add options and parameters for regional-statistics
648       diagnostics ; define regions by reading a region-mask from a file
649       (might add other options later)
650    o pkg/bulk_force:
651     - add option and parameters to use AIM surface-flux formulae.
652     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
653       others forcing fields (defined in PARM05, parameter file "data") are loaded
654       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
655     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
656     - use the right EXCH call for uwind,vwind (to work on CS-grid).
657     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
658       and parameters (note: calcWindStress replaces .NOT.readwindstress).
659     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
660    
661    checkpoint58
662    o add "--embed-source" option to genmake2 which, when the supporting
663      tools can be compiled (as determined by genmake2) will turn on the
664      embed_files package which then embeds the entire MITgcm source code
665      (*.[fFhc] + Makefile) used for the build within the executable
666      - requested by CNH but off by default
667      - adds a paltry <9MB to the mitgcmuv executable in most cases
668      - only writes the output when useEMBEDSRC in eedata is true
669    o clean up 3-dim. relaxation codes:
670      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
671      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
672      * Thanks to Tom Haine for testing!
673    
674    checkpoint57z_post
675    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
676      affects output (@ truncation level) of exp. plume_on_slope ; updated.
677    o fix the pickup behavior for obcs in combination with ptracers
678    o fix a bug in ptracers_external_fields_load
679    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
680      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
681    o transfered surface NH pressure to eta field (if exactConserv).
682    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
683         and update lab_sea output.txt file.
684    o completing 3-dim. relaxation code: additional term
685         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
686      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
687      * At compile time, in "EXF_OPTIONS.h" set
688          #define  ALLOW_CLIMTEMP_RELAXATION
689          #define  ALLOW_CLIMSALT_RELAXATION
690      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
691          tauThetaClimRelax3Dim = 15552000.0,
692          tauSaltClimRelax3Dim  = 15552000.0,
693      * 3 cases:
694          1) Use a constant-in-time 3-dim. field
695          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
696          3) Real-time relax. to time-evolving prescribed field
697    o Adding Laplacian-type smoothness constraint on
698      initial and boundary (forcing) controls (ic, bc)
699      * enable at compile-time via
700        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
701      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
702      * Absolute scale somewhat unclear so far
703      * no area weighting was included since no other cost term does so far
704    
705    checkpoint57y_post
706    First step for a NLFS adjoint
707    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
708    o new init. routines for calc_r_star, calc_surf_dr
709    o still need to deal with ini_masks_etc
710    o testreport seemed happy
711    checkpoint57y_pre
712    
713    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
714    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
715    o add new offset feature to offline pkg (plus minor cleanup)
716    o cfc fixes for final year of integration
717    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
718      be in GCHEM_OPTIONS).
719    
720    checkpoint57x_post
721    o fix testreport Pb in multiple test experiment.
722    o cleanup our namelist syntax in verification:
723      - make it more F95 standards compliant (some work still needed)
724      - allows the vast majority of our tests to work with gfortran
725    o Non-Hydrostatic:
726     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
727     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
728    o Allow to apply AB on T,S rather than on AB(gT,gS):
729     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
730     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
731       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
732     - need a "clever" read_pickup to restart from the other AB formulation
733    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
734    o remove some unused variables (reduces number of compiler warnings)
735    o adjoint
736      * Disable useVariableViscosity for adjoint for time being
737        (there are a number of extensive recomputations)
738      * Initialize certain variables needed for adjoint
739    
740    checkpoint57w_post
741    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
742                 fix the singleCpuIO RS version of MDSWRITEFIELD
743       and add a WARNING if using globalFiles=T with multi-processors.
744    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
745      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
746    o tracer advection scheme:
747      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
748       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
749       was not very convenient).
750      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
751       (further tests needed for the implicit DST & Flux-Limiter schemes).
752    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
753      and sRef for convenience, handy, when you want to initialize
754      ptracers in a large domain with a constant non-zero value. Also,
755      untangle ptracers_init.F a little.
756    
757    checkpoint57v_post
758    o change dome exp. to use variable viscosity in side-drag terms.
759    o remove all the files from the cfc_offline test since they are now
760      incorporated into tutorial_cfc_offline which has been producing
761      identical results for a few days of testing
762    o add new parameter: sideDragFactor to enable half-slip-side BC
763      and change side-drag S/R to use viscosity from mom_calc_visc
764      (can switch back by setting sideDragFactor=0.); affects results at
765      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
766       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
767    o vorticity & strain are now computed without masking, to account for
768      no-slip-side BC in variable viscosity calculation ; mask is applied
769      anyway later on, before computing advection/coriolis terms.
770    o modify exp4 to test new obcs support for reading from external files
771      and for passive tracers
772    o fix behavior of ptracers_monitor when monitor output is written to a
773      netcdf-file; still not independent of monitor.F (writes in the same
774      file).
775    o change default value of tRef (put a uniform, meaningful value for ocean
776      & atmos) and initialize sRef (was missing, as Martin mentioned).
777    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
778      to be proportional to enstrophy dissipation length.  Thus,
779       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
780      This is now consistent with Smagorinsky and with the manual.
781    
782    checkpoint57u_post
783    o OBCS and PTRACERS: add open boundary support for passive tracers
784      - either use homogenous (pseudo) v.Neumann conditions or prescribe
785        OB-values from file; this is not different from the way theta and salinity
786        are treated
787      - however, Orlanski-radiation conditions are not supported, and the model
788        will stop if you use pTracers and Orlanski at the same time.
789      - beefed up the rountine obcs_external_fields_load: now only those open
790        boundary values are overwritten with values from files for which there
791        are really files, otherwise the OB-fields remain untouched. This makes
792        it possible to use different OBs at different ends of the domain (as
793        with EXF)
794    o reduce number of exch calls in shap_filt (s2).
795    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
796      truncation level) 4/5 MLAdjust test results (11&12 digits match).
797    
798    checkpoint57t_post
799    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
800    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
801      same truncation, independent of the face number: affects affects several
802      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
803    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
804      note that biharmonic viscosity + no-slip was not tested in any experiment.
805    o fix bug in non-linear free-surf side-drag ; generate new output for
806      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
807    o make mnc honor the writeBinaryPrec flag for most kinds of output
808    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
809    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
810      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
811    o add brackets in multi-terms sum to get same truncation, independent of
812      the face number (manage to get exactly same value of gU,gV at the cs-edge)
813      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
814    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
815      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
816      a maximum grid-scale Reynolds number.  Also, changes all length calculations
817      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
818      Suggested values of viscosity parameters found in mom_calc_visc.
819      Many new viscosity diagnostics available.
820    
821    checkpoint57s_post
822    o Add clearing-house for viscosity calculations, mom_calc_visc and
823      correct numerous bugs in LeithD and Smagorinsky discretizations.  
824      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
825      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
826      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
827      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
828      The Strain-Tension form is now called with useStrainTensonVisc=.true.
829      ViscAhStrain and viscAhTension are now retired.
830    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
831    o In response to JMC's bug report, genmake2 now ignores any soft-links
832      that it finds in the *current* directory when searching for files.
833      Soft-links found in any other source directories will still work as
834      they did before.
835    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
836      a C routine to unlimit the stack size
837    o mnc-ify pkg/aim snapshot vars
838    o mnc-ify pkg/land as requested by Daniel
839    o various changes to mnc including:
840      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
841      - output can now be grouped so that all files within a group
842          change the ITER portion of their names in lock-step together
843      - can now read ("global") PER-FACE (in addition to PER-TILE) files
844          and works with both EXCH1 and EXCH2 (but needs more testing)
845      - writing works for all verification test cases w/ g77 on Linux
846    
847    checkpoint57r_post
848    o make MNC variable initialization happen earlier
849    o add diagnostics for (almost) each term of the momentum Eq.
850    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
851    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
852    o remove MINIMAL_TAVE_OUTPUT option ;
853      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
854    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
855      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
856    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
857    o add time-dependent SST, SSS control
858    o cost terms in ecco/ modularized (new cost_generic.F)
859    o cost_averages routines are modularized (new cost_averagesgeneric.F)
860    o new infrastructure for seaice model vs. obs misfits in seaice/
861      * driver from the_main_loop.F is seaice_cost_driver.F
862      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
863      * gradient check in Exp. 6a of natl_box_adjoint/
864    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
865      (see README file)
866    
867    checkpoint57q_post
868    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
869    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
870      - bug was reported by Jean-Michel and Ian Fenty
871    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
872      update exp. cpl_aim+ocn output.
873    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
874      Needed for high-res. runs with large global files
875      to be able to limit tapelev size
876    o Changed some tests for adjoint:
877      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
878      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
879      * global_ocean.90x40x15/ back to default 3-level checkpointing
880    o Modifications to enable scripted COMMON to MODULE conversion
881      * verification/OpenAD/code/ has necessary scripts and description;
882      * converts, compiles and runs successfully;
883    
884    checkpoint57p_post
885    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
886    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
887      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
888    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
889    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
890      (was already the case for dissipation with mom_vecinv,
891       and also the case for grad.PhiHyd when staggered-timeStep)
892      This will allow to put dissipation out-off the AB time-stepping.
893     Unfortunately, affects truncation error. Update output of exp. that "fails"
894      (cg2d matching number) and leave the others for later: front_relax(10),
895      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
896      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
897    
898    checkpoint57o_post
899    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
900      (2) its ready to be documented during the 20050801 DocFest
901    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
902      for ideal_2D_oce and lab_sea on linux_ia32_g77
903    o set to #undef CTRL_SET_OLD_MAXCVARS_30
904      in global1x1_tot/code_seaice_adj to access indices 32, 33
905      (worth another tag)
906    
907    checkpoint57n_post
908    o adding precip control xx_precip 32
909    o adding swflux control xx_swflux 33
910    o Replacing 10 forcing penalty cost routines by 1 generic.
911    o Implementing partitioning in time-mean and variable adjustment
912      for atmos. state.
913    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
914    o in natl_box_adjoint:
915      * updated exp 1 to 10
916        (but does not have time-mean vs. variable split results yet)
917    o updated global1x1/*_seaice_adj/
918      to incorporate latest changes
919    o enable useSingleCpuIO for mdsio vector routines
920      (applies in particular to tapelev I/O)
921    o removed inefficient K-loop in all active_file*control*.F
922    
923    checkpoint57m_post
924    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
925      and advect_cs (use EXCH-2 and standard cs-32 grid files).
926    o pkg/exch2: filling of face-corner halo regions is optional
927      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
928    
929    checkpoint57l_post
930     tag before updating tutorials (pre-release-2)
931    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
932       for output and interpolation of input fields onto model grid)
933    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
934       Affects results of exp. rotating_tank ; update output.txt.
935    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
936          and taking the square quantity and/or using a fraction-weight field.
937    o fix aim_diagnostics_init.F mate numbers.
938    o add mnc output capability to diagnostics/diagstat and update
939      our cvsignore files for the ACSII output generated
940    
941    checkpoint57k_post
942    o lab_sea now uses diagnostics package and provides a suite of
943      new EXF diagnostics output.
944    
945    checkpoint57j_post
946    o exf
947      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
948        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
949        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
950      * extended diagnostics output
951        - now includes all EXF variables
952        - hs, hl moved to common block
953        - separate S/R for diagnostics, called after ctrl vector is added
954        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
955        - EXFqnet contains true Qnet (i.e. includes qsw)
956      * updated verif. lab_sea, global_with_exf
957      * Rearranging hflux (exf_mapfields -> exf_getforcing)
958        to ensure that diagnostics sees a true EXFqnet
959    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
960    o diagnostics pkg: change pointers so that 1 diagnostic can be used
961      several times with different frequencies.
962    o mnc-ify the thsice package as requested by Daniel Enderton
963      - the monitor--MNC output needs work
964      - many attributes need to be added (most are currently blank)
965    o mnc-ify theaim_v23 package as requested by Daniel Enderton
966      - many attributes need to be added (most are currently blank)
967    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
968    o add Sadourny like discretization to the 4th.O vorticity advection scheme
969    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
970      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
971         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
972    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
973     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
974    
975    checkpoint57i_post
976    o Diagnostics package was changed: diagnostic allocation is now deactivated
977      by setting an empty file name in the namelist (used to be by setting 0 frequency)
978    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
979      add 1rst Order upwind vertical Shear.
980    o add a quick fix for A/B checkpointing in OFFLINE mode
981    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
982      end-run around the C/Fortran linking horror in eesup/src/timers.F
983    o added pkg/runclock: allows user to terminate run based on wall clock
984    o added non-hydrostatic scaling parameter: nh_am2
985    o pkg/my82: futile attempt to make results compiler-independent by adding
986      some "_d 0", etc. no effect.
987    o for mnc output, fill the 'T' coordinate var with myTime and create a
988      separate 'iter' variable for iteration count
989    o pkg/diagnostics:
990      add new capability: output of Global/Regional & per-level statistics ;
991      tested against monitor output (including land & thSIce) on various exp.
992    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
993    
994    checkpoint57h_done
995      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
996      data.diagnostics, data.gchem, data.ptracers) is done.
997    
998    o pkg/diagnostics: prepare for Global/Regional statistics.
999      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1000    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1001      and rename it: DIFFERENT_MULTIPLE
1002    
1003    checkpoint57h_post
1004    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1005    o pkg/diagnostics: change output frequency, now in seconds (instead
1006      of Nb of iterations). This requires to change data.diagnostics.
1007    checkpoint57h_pre
1008    
1009    o in mnc, let the user create the output dir if both mnc_outdir_date
1010      and mnc_outdir_num are false
1011    o add fflags() to pkg/diagnostics which allows one to specify, on a
1012      per-file basis, the file precision [default behavior is unchanged]
1013    o added diagnostics to pkg/kpp, including computation of mixed layer
1014      depth based on a temperature/density criterion
1015    o updated verification/natl_box to test the new pkg/kpp diagnostics
1016    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1017    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1018    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1019      not mnc -- this mistake was found by JMC and is now corrected
1020    
1021    checkpoint57g_post
1022    o add Adams-Bashforth 3rd Order time stepping:
1023      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1024      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1025    checkpoint57g_pre
1026    
1027    o make lambda[Theta,Salt]ClimRelax spatially varying
1028      (default remains spatially uniform constant based on tau)
1029    o added new control variables
1030      * init. uVel, vVel, etanN
1031      * lambda[Theta,Salt]ClimRelax
1032    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1033      (suggested by G. Forget)
1034    
1035    checkpoint57f_post
1036    o add parameter "baseTime" = model base time = time at iteration zero
1037      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1038      account for baseTime shift
1039    o move Coriolis arrays from PARAMS.h to GRID.h
1040    checkpoint57f_pre
1041    
1042    o mnc-ifying the seaice package
1043    o introduced an alternative length scale calculation for use in the limiting
1044      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1045    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1046    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1047      as well as grad(vort3).  Made it compatible with both approximate form
1048      for the cubed sphere and full form of these gradients.  Added flag
1049      useFullLeith to select between approximate and full form.  
1050    o add "d0" in getcon.F to reduce differences between compilers/platforms
1051      update output.txt of exp. fizhi-gridalt-hs
1052    o change port_rand funtion to allow to set the seed.
1053    o fix obscure MNC bug involving conversion between reals and integers
1054      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1055        new version is now more standards-compliant
1056    o adjoint-related modifications
1057      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1058      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1059      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1060    
1061    checkpoint57e_post
1062    o Adding eddy stress controls a la Ferreira et al.
1063    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1064    
1065    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1066      update output.txt of exp. fizhi-gridalt-hs
1067    o add more "Z" dimensions and associated coordinate vars to MNC
1068    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1069    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1070      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1071      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1072      months and years.  Requires pkg/cal.
1073    o diagnostics: add pickup functionality
1074      - off by default for backwards compatibility
1075      - current version only uses MDSIO -- MNC will be added
1076    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1077    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1078    
1079    checkpoint57d_post
1080    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1081    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1082      output from the diagnostics package
1083    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1084    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1085      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1086    o add coordinate variables to the MNC output from the diagnostics package
1087    o change MNC-flags default value: true when useMNC=TRUE
1088    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1089      the ability (off by default) to read the grid information using MNC
1090    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1091    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1092    o do snap-shot diagnostics at the middle of the time-interval (instead of
1093      at the end).
1094    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1095      new test for AIM with thSIce + slab-ocean
1096    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1097    o move state variable diagnostics to the beginning of the time step ;
1098      (note: still needs some work specially for snap-shot diagnostics)
1099      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1100    
1101    checkpoint57c_post
1102    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1103    o generate new output.txt files on faulks with g77 & the new -ieee option
1104    checkpoint57c_pre
1105    
1106    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1107      update output.txt of exp. global_ocean.90x40x15
1108    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1109      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1110    o add saltFlux(+File) forcing capability with periodicExternalForcing
1111    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1112    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1113    o improvements for the MNC output from DIAGNOSTICS:
1114      - correct handling of the unlimitied dimension
1115      - all dims now have associated coordinate variables
1116      - variables located at U, V, and Corner ("Z") points are now written
1117        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1118        *all* data points are output
1119    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1120    o added pkg/seaice/seaice_monitor.F
1121    o mdsio_readfield.F can now read files visible only to master MPI process.
1122    o pkg/seaice: some test code for ice-modified ocean stress
1123    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1124      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1125      spurious negative numbers for precipitation and humidity.  Will cause
1126      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1127    o pkg/ctrl/
1128      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1129        May be enabled via doPackDiag
1130      *  introduce z-scaling of
1131         + gradient (doZscalePack) and
1132         + control (doZscaleUnpack)
1133    o pkg/mdsio/
1134      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1135      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1136    
1137    checkpoint57b_post
1138    o simplify options in diagnostics_fill arguments (remove weird combinations)
1139    o fix MNC coordinate variables so that they now contain per-face index
1140      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1141      general, EXCH2 grids are only aligned to a "local" coordinate system
1142    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1143    o Implement instantaneous output within pkg diagnostics:
1144      setting a negative frequency in data.diagnostics produces
1145     "snap-shot" output (as opposed to time-average if freq > 0)
1146    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1147      NOTE: change ptracer diagnostics name: use 2 characters to work with
1148            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1149    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1150      becomes the coordinate variable for the 'T' dimension
1151    o add CF-style coordinate variables to MNC
1152      - just a first cut:  numbers are meaningless on the cubesphere and
1153        missing along the T axis but otherwise it works!
1154    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1155    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1156    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1157      this is based directly on what the model compute, so that the content of
1158      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1159    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1160    o clean up build options files for SunOS, in particular
1161      - remove -traditional from xmakedepend
1162      - change -xarch=v9 to -xarch=native for f77
1163      - restore use of make (not gmake)
1164      - add CC=gcc if using g77
1165    o changes per discussion of AM, JMC, & EH3 today:
1166      - move redundant "grid" variables out of "state" -- in preparation of
1167        creating proper CF-style coordinate variables and in recognition
1168        that any/all grid variables can be easily copied (eg. w/NCO) from
1169        the grid files into any of the other NetCDF files
1170      - *always* output grid variables with MDSIO (this will eventually be
1171        changed)
1172      - output MNC grid file if useMNC is true
1173    o every instance of _END_MASTER() has been found and replaced with
1174      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1175      preprocessors
1176    o re-arrange diagnostics pkg initialisation:
1177     - allow each package to extend the available diagnostics list
1178     - add some checking and fix small problems (multi-threaded, ...)
1179     - new S/R diagnostics_fill (replace fill_diagnostics):
1180       look through the short list of active diag. (instead of the long list)
1181       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1182    
1183    checkpoint57a_post
1184    o this set of changes restores TAMC compatibility
1185      tested for global_ocean.90x40x15 adjoint on trough
1186      (what a pain)
1187    
1188    checkpoint57a_pre
1189    o some modifs in tools/build_options for sunos
1190    o call ctrl_pack for ctrl at end for optimcycle=0
1191    
1192    checkpoint57
1193    o add horizontal bi-harmonic viscosity for vertical velocity
1194      - new parameter viscA4W (defaults to viscA4)
1195      - affects only non-hydrostatic code
1196      - to be done: no-slip lateral boundary conditions
1197    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1198    o implement Implicit Vertical advection for pTracers
1199    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1200      (implemented also for implicit vertical diffusion & advection)
1201    o OBCS: extend application of tracer open boundary conditions
1202      to a strip beyond the boundary of width Olx/Oly
1203    o add call monitor to TAF set of required calls (flow directives)
1204      and include in natl_box_adjoint
1205    o untangle a few ifdefs related to cost, ctrl, autodiff
1206      untangel a few ALLOW_ECCO_OPTIMIZATION
1207    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1208      (theta2, salt2 in ecco_cost_weights)
1209    
1210    checkpoint56c_post
1211    o OBCS as control variables
1212      - update ctrl_ad_diff.list, obcs_ad_diff.list
1213      - remove balance of obcs controls from default
1214      - fix index bug nobcs in ctrl_init
1215      - fix dummy fields filen in ctrl_pack
1216      - add dummy weights for obcs
1217    o lsopt: comment out fort.94 output
1218    o optim:
1219      - remove unnecessary header files
1220      - adjusted namelists
1221      - add xerbla.F to Makefile
1222    o exf:
1223      - multiple modifications of exf_check_range
1224      - unit change in exf_init_runoff from [m/year] to [m/s]
1225    o mdsio:
1226      - i/o-vector change debugLevel from debLevA to debLevB
1227    
1228    checkpoint56b_post
1229    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1230      is called from DO_THE_MODEL_IO
1231      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1232      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1233      - clean up PTRACERS_WRITE_TIMEAVE a little
1234    o add another verification experiment that tests both the cfc-pkg and
1235      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1236      reactive tendencies treated inline with regular timestepping
1237    o testreport previously did a lousy job of comparing small numbers, so
1238      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1239      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1240      testreport.
1241    o ptracers_monitor: bug fix for MPI
1242    
1243    checkpoint56a_post
1244    o GCHEM: finish reorganizating the package
1245      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1246        (introduces another 3D-array for each passive tracer, but only if
1247        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1248        gchemTendency is not needed because the timestep is done separately)
1249      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1250      - GCHEM is now---more or less cleanly---separate from PTRACERS
1251      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1252        so clear to me how that should be done in a general way.
1253    o CFC: improve formatting of output in CFC_ATMOS
1254    o PTRACERS:
1255      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1256        that ALL experiments with ptracers enable can be checked. This makes
1257        GCHEM_MONITOR obsolete.
1258      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1259        monitorFreq
1260      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1261    o add PTRACERS (PTR0[1-5]) to testreport output
1262    o exf_check_range:
1263      * default changed to .TRUE.
1264      * will check values for niter0 if debLevA, every timestep if debLevB
1265      * STOP in exf_check_range if 'out of range'
1266      * range chosen generous to allow for potential extema
1267      TBD: a version with stricter range
1268           permitted range would be runtime parameters
1269  o GMredi:  o GMredi:
1270    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;    - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1271    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.    - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
# Line 11  o GCHEM: Line 1274  o GCHEM:
1274    - move call to GCHEM_FORCING_SEP, so that it is now called before    - move call to GCHEM_FORCING_SEP, so that it is now called before
1275      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP      the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1276    - introduced a useGCHEM runtime flag and applied it everywhere.    - introduced a useGCHEM runtime flag and applied it everywhere.
1277      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1278        this flag is now only visible within GCHEM-pkg routines.
1279      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1280        be replaced by a 3D array that is computed before thermodynamics; for
1281        this, the tracer ID iTracer had to be included into the parameter list
1282        of ptracers_forcing
1283      - set up forward_step to call gchem_forcing, that will replace
1284        gchem_forcing_int in ptracers_forcing
1285      - cleaning up
1286  o small cleaning of exch2: remove files that are also in eesupp/src  o small cleaning of exch2: remove files that are also in eesupp/src
1287    
1288  checkpoint56  checkpoint56

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