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revision 1.682 by jmc, Mon Jun 19 01:06:57 2006 UTC revision 1.858 by jmc, Thu Aug 16 02:34:16 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/generic_advdiff:
8     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
9      loop range indices for computing vertical advection tendency
10      and do the calculation in the interior only (no overlap) ;
11      for now, only implemented for SOM advection (to save CPU time).
12     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
13    o exch2 adjoint
14      First set of changes:
15      - add exch2 hand-written adjoint templates
16      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
17        This will require cleanup in pkg/autodiff/*.F
18        (changed routines currently kept separate in verif. code/)
19      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
20        that used to hide exch2 or cubed-sphere specific code
21        (commented via 'cph-exch2')
22    o pkg/seaice
23      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
24    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
25       output of global_ocean.cs32x15.thsice .
26    
27    checkpoint59e
28    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
29      for B-grid vector (not yet tested) and C-grid vector (<- only used
30      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
31    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
32      (#ifdef ALLOW_SALT_PLUME)
33    o gather_2d/scatter_2d: removed halo regions
34    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
35      scheme and the corresponding test case (under front_relax dir). For now,
36      only available with Skew-flux form and not yet tested in realistic set-up.
37      adjoint: store directives updated, but gradient checks deteriorated,
38      so maybe GM/Redi adjoint is now broken.
39    o seaice adjoint
40      * add AREA, HEFF, HSNOW as control variable
41        (should not change lab_sea results)
42      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
43    o pkg/seaice:
44      * added computation of saltFlux in seaice_growth;
45        For time being, sea ice salinity is assumed constant
46        contribution of snow flooding to freshening of sea ice is neglected.
47        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
48        defaults to 0.0 in order to maintain backward compatibility.
49        Typical values for SEAICE_salinity are 4 to 10 g/kg.
50      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
51      * added SEAICE_availHeatFrac, which specifies fraction of surface level
52        heat content used to melt or grow ice
53      * commented out cap of HICE: it helps keep ice thinner
54      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
55      * applied OBCS T/S mask to HEFFM sea ice mask
56    
57    checkpoint59d
58    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
59     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
60     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
61    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
62     and change default value of parameter "GM_Small_Number";
63     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
64       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
65       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
66    o pkg/ecco: cost function when applying pkg/smooth to controls
67    o pkg/ctrl: add forcingPrecond run time parameter
68    o pkg/seaice:
69     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
70     - fix bug in metric terms of u-equation in LSR solver (implicit part),
71       changes verification/lab_sea
72     - rearrange implicit part of u-equation in LSR solver to make it easier to
73       read, understand, and debug. This causes changes at the truncation level.
74     - fix (serious) bug in the boundary conditions (sign error in the implicit
75       part) of the LSR solver. Changes all LSR results.
76     - fixed problem with HSNOW initialization to avoid thick snow when AREA
77       is initilized with small values - does not change lab_sea results.
78     - added HsnowFile initialization capability
79    o pkg/smooth: addition to model/src and pkg/ctrl so allow
80     initialization of pkg/smooth and application to control vector
81    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
82    o dependencies: pkg/profiles requires pkg/cal
83    o pkg/profiles:
84     - added option ALLOW_PROFILES_GENERICGRID
85         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
86         that interpolation information (grid points and coefficients) is provided
87         within the netcdf input files.
88         -> sample matlab scripts can be found in MITgcm_contrib/gael
89         that allow you to prepare netcdf input files.
90     - also modified: cleaner include statements, cleaner error print statements,
91       cleaner stops when error, and more tests of the netcdf input files consistency.
92    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
93    o pkg/seaice:
94     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
95       requires a new routine: seaice_diagnostics_fill.F
96     - make sure that seaice does not move if not forced (pressure replacement
97       method, Hibler and Ip, 1995), changes results
98     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
99     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
100       It is turned off by default (=-1.), because it changes the results.
101     - make it possible to read AREA from a file, too.
102    
103    checkpoint59c
104    o add S/R and diagnostics for oceanic mixed-layer depth
105    o move GMRedi call after all vertical mixing schemes (including KPP)
106    o pkg/thsice:
107     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
108      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
109    o pkg/obcs:
110     - bug fix for balance code
111    o pkg/seaice:
112      - allow values of SEAICE_elasticParm > 1
113      - add new parameter SEAICE_evpTauRelax as an alternative
114        to SEAICE_elasticParm
115      - make lsr boundary conditions free slip (by default), changes result
116      - add code for no slip boundary conditions for lsr
117      - set minimum of zeta to zero (and not 4e8) (changes results)
118      - add a cap on AREA after advecting AREA if seaice_growth is not called
119    o change calculation of Visbeck K:
120      - no longer depend on tapering scheme; instead, compute slope (limited
121        by GM_maxSlope). this is equivalent to what was comuted before with
122        clipping or linear tappering.
123      - fix vertical averaging (wrong by 1/2 level)
124      - leave the old version (but will not be maintained) within
125        #ifdef OLD_VISBECK_CALC / #endif
126      - update output of exp. ideal_2D_oce
127    o change error catch in calc_r_star to improve vectorization
128    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
129      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
130    o adjoint:
131      Re-organized adjoint checkpointing according to Matt Mazloff
132      (but with modifs/completions/cleanups)
133      Storing is now bundled into large arrays to optimized I/O
134      (and second step in cleanup of the_main_loop)
135    
136    checkpoint59b
137    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
138      - export/import (between ocean & coupler) fields needed for ocean DIC.
139    o pkg/seaice:
140      - get rid of three more exchanges seaice_calc_viscosities (required
141        different loop boundaries in seaice_lsr and seaice_ocean_stress)
142      - bug fix in seaice_ocean_stress (update of lab_sea required)
143      - reduce loop boundaries to necessary minimum also in seaice_evp
144      - go back to the old way of computing deltaC/Z as the adjoint likes that
145        better
146    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
147      passive tracer to an Age Tracer) + update output.txt
148    o pkg/exf:
149      - implement A-grid / C-grid selection for wind-stress input files.
150      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
151      for now, in exf_bulk_largeyeager04.F only :
152      - change implementation for case where windspeed + 2. components wind-stress
153        are read-in. AND use rhoConstFresh to convert evap.
154    o pkg/seaice:
155      - use correct EXCH_UV for wind-forcing (on A-grid).
156      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
157        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
158    o pkg/exf:
159      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
160      EXF_INTERPOLATION:
161      - merge global_with_exf/code version of exf_interp_read.F
162        to the main code ;
163      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
164        reading the file ; Important: This options needs to be defined to recover
165        previous code.
166        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
167      - no longer loose real*8 precision along the way when using exf_iprec=64.
168    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
169      - change discretisation of evp-solver in order to avoid another exchange
170        (changes lab_sea) and clean up a little
171      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
172        help the adjoint (this also changes the results slightly)
173      - add a few "_d 0" where they had been missing in seaice_evp.F
174      - cleaning up: remove unused seaice_calc_rhs.F
175    o pkg/exf: some cleaning-up:
176      - change various "constants" into runtime parameters
177      - cleaned-up Large&Yeager04 routine which should eventually
178        replace exf_bulkformulae.F (changed names of S/R and CPP)
179        and merged various ALLOW_ATM_WIND options
180     only used with thsice pkg (in thsice_get_exf.F):
181      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
182        which are used when useStabilityFct_overIce=TRUE (= the default)
183      - change default values of ice & snow emissivity and scale downward LW
184        by ice & snow emissivity.
185    o pkg/thsice:
186     fix few little problems, in thsice_calc_thickn.F:
187      - growth vertically (and not laterally) if iceFrac == iceMaskMax
188      - melt only laterally if hIce < hThinIce (as the comments say)
189      and in thsice_extend.F:
190      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
191      - start to form ice as soon as the minimum ice-volume is reachable.
192     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
193      and cpl_aim+ocn
194    o pkg/kpp
195     - move computation of surface related input fields to KPP into a new
196       subroutine kpp_forcing_surf.F
197     - remove wrong (within bi,bj loops) EXCH calls.
198     - little cleaning (add argument myThid in last position, cvs header ...)
199     - for now, fix conservation problem by exchanging KPPviscAz (may not
200       be the best fix)
201    o pkg/seaice
202     - check for inconsistent evp parameter/cpp-flag combination
203     - remove leftover errIO flat for obsolete name list error handling
204    o OpenAD
205     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
206    
207    checkpoint59a
208    o pkg/seaice: some parameter clarifications and a little bit of clean up
209    o pkg/thsice: rename run-time parameters:
210       himin       -> hIceMin
211       himin0      -> hThinIce
212       hihig       -> hThickIce
213       i0          -> i0swFrac
214       transCoef   -> bMeltCoef
215       frac_energy -> fracMelting
216      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
217       with default values (for now) that do not change the results.
218      remove old version of thsice vars advection in pkg/seaice.
219    o in FFIELDS.h:
220      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
221      - make pLoad & sIceLoad always available (but still only used if
222         ATMOSPHERIC_LOADING is #define).
223    o pkg/kpp: replaced _KPP_RL with _RL
224    o bug fixes for vertical diffusivity computations when both KPP and
225        3D diffusivity arrays are used.
226    o pkg/seaice: fix bug in evp solver, while doing that
227      - change (improve?) discretization of stress computations for both
228        cgrid-lsr and evp solver
229      - add a new routine to compute strain rates
230      - the above changes lab_sea results
231      - add no slip conditions for evp solver (off by default), lsr-version
232        may follow
233      - fix exchange for shear at Z-points (does not change lab_sea)
234      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
235        (to force the user to pick a time step since there is not "safe" way
236        of choosing it)
237      - add principal stress diagnostics
238      - rearrange fields for evp a little to avoid having to call a: too many
239        exchanges and b: exchanges for stress trensor components which we do
240        not have.
241      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
242        of evp, complete rewrite for lsr case (latter is does not yet work
243        in all cases)
244    o pkg/kpp: add code to have mixing in shelf ice caverns
245      - add myThid to all kpp routines (long overdue)
246    
247    checkpoint59
248    o pkg/exf:
249      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
250        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
251      - move exf header files from lower_case.h to UPPER_CASE.h ;
252        add missing cvs Header & Name
253      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
254      - add namelist param. selectStressGridPosition, exf_monFreq
255      - retire many _CLIM routines, and remove data.exf_clim
256        + params moved to data.exf
257        + climsst, climsss now handled by exf_set_gen, i.e.
258          climss?period=0 refers to constant field,
259          climss?period=-12 to monthly forcing
260      - split up namelists in data.exf
261    o pkg/seaice:
262      - remove seaice_exch and seaice_exch_uv
263      - remove superfluous exchange of theta
264      - add myThid to seaice_budget_ocean/ice
265      - add new interface for atmospheric wind forcing (C-grid only)
266        + new routine
267        + two new field (taux, tauy for stress over ice)
268        + removed one global field (DAIRN) for C-grid case only
269    o pkg/thsise
270      - 2nd set of modifs for thsice adjoint in conjunction with exf
271    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
272    
273    checkpoint58y_post
274    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
275      vertical diffusivity, similar to that in MOM4; turned on using
276      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
277      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
278    o Added capability for 3D specification of background vertical diffusion
279      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
280      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
281      "data" file that contains the 3D vertical diffusivity coefficients.
282    o ice dynamics (pkg/seaice) with thsice thermodynamics:
283      - add code within pkg thsice to advect & diffuse sea-ice fields
284      similar to (and will replace) what has been added in  seaice_advdiff.F,
285      but: - conserving Mass, Heat & Salt.
286           - better when using non-linear advection scheme (not yet fully tested)
287           - can also be used in atmospheric set-up (for now, only the diffusion).
288    
289    checkpoint58x_post
290    o IO option for global-file compact format:
291      - add options when generating topology (utils/exch2/matlab-topology-generator)
292      - add I/O capability (pkg/mdsio).
293      - adapt utils/matlab/rdmds.m to read this format.
294      for now long-line format not yet supported by pkg/mdsio (& exch2).
295    o shelfice: add a few diagnostics
296    
297    checkpoint58w_post
298    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
299      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
300      (and replace horiVertRatio in NH code).
301      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
302                         and tutorial_plume_on_slope (sensitive to truncation)
303    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
304      directly to drive seaice model (C-grid only)
305    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
306     - reintroduce computation of wind from stress,
307     - compute tau (in exf_bulkformulae.F) from windstress averaged to
308       mass points to avoid tau = 0
309     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
310    o rdmnc.m: make it work with "global" files created with gluemnc
311    o rdmnc.m : some improvements in dealing with singleton dimension
312      (tested on all testreport mnc output files).
313    o genmake2: disable pkg/profiles if netcdf test fails.
314    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
315    o move call to cal_readparms up to make calendar parameters/variable available
316      to all packages
317    
318    checkpoint58v_post
319    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
320      useDynP_inEos_Zc tested.
321    o pkg/exf: changes to properly interpolate/mask/scale initial fields
322    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
323      and portions thereof.  See read_cs.txt for description and examples.
324    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
325      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
326      following the great-circle arc between those 2 points.
327    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
328      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
329    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
330     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
331     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
332     - still needs work (not working with some options ; efficiency to improve)
333       and serious testing.
334     - use this scheme for temperature & salinity in 2 advection test exp.:
335       advect_xy & advect_xz, respectively.
336    
337    checkpoint58u_post
338    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
339    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
340    o testreport: add option "-skipdir" to skip some test.
341    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
342      momentum calculation.
343    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
344    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
345      remove checkpoint.F and the_correction_step.F (no longer used);
346      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
347    o add option (linFSConserveTr) to correct for tracer source/sink due to
348      Linear Free surface
349    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
350    o pkg/thsice: fix reading mnc-pickups
351    
352    checkpoint58t_post
353    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
354    o pkg/mdsio:
355     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
356       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
357       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
358     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
359     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
360       either MDS_READ_FIELD or MDS_WRITE_FIELD )
361     - new S/R (to replace MDSWRITEMETA), which allows to write more
362       informations (variable names, time ...) to meta files.
363     - modify rdmds.m to give back the meta file content.
364    o pkg/diagnostics: change vertical interpolation to be safer, and more
365       flexible (define p-levels to interpolate to in data.diagnostics);
366      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
367       diagnostic pointer.
368    o pkg/seaice: more cleaning up of seaice_growth, added many comments
369    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
370    o fix multi-category seaice:
371     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
372       SEAICE_MULTICATEGORY
373     - fix short wave heat flux
374    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
375       and allow to use EVP solver. Change forward lab_sea: test both EVP
376       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
377    o Initial check-in of lab_sea adjoint
378      (very similar to natl_box_adjoint/code_seaice)
379      * used C-grid and EVP solver
380      * used KPP, GM/Redi
381      * uses inAdExact=.TRUE.
382      * gradient checks fail for both ADM and TLM
383        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
384        f.d. gradients actually seem more problematic than ADM, TLM gradients;
385        issue is related to forward mismatch between g77 an ifort
386    o pkg/seaice: overhaul of thermodynamics
387     - growth.F and groatb.F are replaced by new routine seaice_growth.F
388     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
389     - move a few global fields out of SEAICE.h into seaice_growth.F and
390       make them 2D (FICE/QNETO/ ...)
391     - remove FO (it is the same as QNETO)
392     - introduce a few local fields to avoid modifying external fields such
393       as atemp, etc.
394    
395    checkpoint58s_post
396    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
397      changed exf_set_gen.F so that
398        genperiod=0 means input file is one time-constant field and
399        genperiod=-12 means input file contains 12 monthly means
400    o CG2D: use pre-computed solver main-diagonal (stored in common block);
401      this affects truncation error ; generate new output file for exp. which
402      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
403        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
404        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
405        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
406        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
407        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
408    o start implementation of deep-atmosphere and anelastic formulation
409    o verification: remove 2nd copy of input files and use script "prepare_run"
410      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
411    o mom_common/vecinv/fluxform: fix a few initialisation isssues
412    o profiles: fix for multithreaded case
413    
414    o diagnostics: rename few diags:
415      s/'PRESSURE'/'RCENTER '/g
416      s/'TICE    '/'oceFreez'/g
417      s/'TAUX    '/'oceTAUX '/g
418      s/'TAUY    '/'oceTAUY '/g
419      s/'SWFLUX  '/'oceQsw  '/g
420      s/DIFx/DFxE/g
421      s/DIFy/DFyE/g
422      and add few ocean-forcing diagnostics:
423      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
424    o modifications to pkg/seaice/growth.F and budget.F, which change results of
425      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
426      as actual snow thickness.  It now refers everywhere to effective snow
427      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
428    
429    checkpoint58r_post
430    o modifications to pkg/seaice/growth.F, which change results of
431      lab_sea experiment: fixes pertain to melting snow over open water, to
432      masking EVAP under sea ice, and to using the correct AREA variable for
433      computations of EVAP, PRECIP, HSNOW, and GHEFF
434    o add ability to read bathy, salt, and theta using MNC (off by def)
435    o add flooding algorithm and advection of HSNOW for pkg/seaice;
436      both are turned off by default and do no change any results
437    o seaice advection with pkg/thsice: a step toward the use of non-linear
438      advection scheme, but #ifdef or commented out for now (requires more EXCH).
439    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
440      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
441      in natl_box (affects results @ truncation level: update output.txt)
442    o multi-threading and IO:
443      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
444      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
445        (needed to work with SingleCpuIO): tested in all verif. exp.
446    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
447      affects the results (but none of the verification test uses this scheme).
448    o Adding some pkg/diagnostics capability to pkg/seaice
449      (will certainly be subject to changes)
450    o ctrl: adding new control variables:
451      lwflux, lwdown, evap, snowprecip, apressure, runoff
452    
453    checkpoint58q_post
454    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
455      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
456      high_res_cube configuration by 4% on Columbia.
457    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
458      add (in global_with_exf/code) a version of EXF_INTERP_READ without
459      dynamical allocation (seems to work in multi-threaded).
460    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
461      single CPU io) so that TAF does not have to see EESUPPORT.h
462    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
463    
464    checkpoint58p_post
465    o obcs: stop if obcs is used with useCDscheme = .true.
466    o shelfice:
467     - fix a sign error so that no slip at shelfice interface works
468     - remove stop for combination non-hydrostatic code and shelfice. That does
469       not mean, that the results are correct, but at least they are numerically
470       stable
471    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
472    o added adjoint exch routined for all exch*3d* routines
473      and updated flow directives
474    
475    checkpoint58o_post
476    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
477      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
478    o change controling S/R for writing pickup file (new S/R do_write_pickup)
479      and clean-up reading/writing of pickup files.
480    o fix local version of read/write pickup (NH part) in rotating_tank/code
481    o simplify EXCH interface:
482     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
483     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
484    o added the regrid package
485    o shelfice:
486     - add a simple boundary layer scheme to reduce noise
487     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
488    
489    checkpoint58n_post
490    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
491       local variable (not in common block).
492    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
493      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
494      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
495        to work with SingleCpuIO.
496    o add "_d 0" to real constant of pkg/cfc subroutines ;
497       update exp. cfc_exemple & tutorial_cfc_offline output files.
498    o multi-threading and IO:
499      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
500        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
501      - barrier before and after reading.
502      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
503      - avoid using MDS_WRITELOCAL for LAND pkg output.
504      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
505        common-block variables ; Allows multi-threading with master-thread IO.
506    o change default MAX_NO_THREADS from 32 to 4 ;
507      and stop cleanly when MAX_NO_THREADS is too small.
508    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
509    
510    checkpoint58m_post
511    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
512       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
513    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
514       keep global_ocean.90x40x15 (for AD testing) with former secondary test
515       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
516    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
517        add MITgcm_tutorials (= code + all the tutorials)
518    o ecco, option to compute cost for total ssh (mean+anom)
519    o consistent with addition of ptracer and ssh in pkg/profiles
520    o profiles: adding ptracer and ssh
521    o testreport: change multi-test output-file name
522      (from output.txt.{name} to output.{name}.txt)
523    o profiles: now ok for mutli-tiles case
524    o seaice: add 4 parameters for different advection schemes for area,
525      (effective) seaice thickness, enthalphy, and snow height. Their default
526      is the standard parameter SEAICEadvScheme
527    o calc_gw:
528     - add cosFacU in zonal viscous flux (harmonic.visc.).
529     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
530       of tutorial_plume_on_slope.
531    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
532    o calc_gw: true flux-form, account for horizontal grid spacing.
533      update rotating_tank results, but not plume_on_slope (affected at
534      truncation level, 11 digits).
535    
536    checkpoint58l_post
537    o calc_gw:
538     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
539     - remove side-drag for now (need to fix it); update plume_on_slope results.
540     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
541    o commit code to make SST/SSS weights spatially variable
542      (based on either variable in-situ or variable initial T/S weights)
543    o pkg/ecco:
544      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
545        now based on horizontally varying weights wthetaLev, wsaltLev
546      * cost_averagesflags now returns year indices in addition to day, month
547      * sflux balance is performed on annual basis
548        (sflxumm, sfluxmm2, bal_sfluxmm)
549      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
550        including separate counting and multipliers
551    o pkg/rbcs
552      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
553    
554    checkpoint58k_post
555    o testreport:
556     - always build in dir. "build" (if not there, mkdir build instead of building
557       & running in input)
558     - run in dir run (if it exists), in build otherwise.
559     - call prepare_run (if input/prepare_run exists)
560     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
561    o pkg/exf modifications to interpolation and rotation routines for more
562       reasonable treatment of North Pole singularity: for tracers North Pole
563       value is set to northernmost zonal-mean value, for zonal velocity it is
564       set to zero, and for meridional velocity it is set to northernmost value.
565    o pkg/exf/exf_check_range.F
566     - add tile index to diagnostics and move stop statement to the very
567       end of the routine.
568    o pkg/diagnostics: (diagnostics_main_init.F)
569      define title of isomorphic variables according to the current config.
570    o pkg/thsice with pkg/seaice dynamics:
571    - fix domain of computation (interior only, required for exf) and do exchanges
572    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
573    o towards a standard way of dealing with multi-threading in MONITOR
574      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
575    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
576       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
577    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
578    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
579    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
580       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
581  o tracer advection:  o tracer advection:
582   - clean-up and simplify calc_common_factors.F   - clean-up and simplify calc_common_factors.F
583   - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer   - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer

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