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revision 1.685 by baylor, Thu Jun 22 19:39:21 2006 UTC revision 1.872 by dimitri, Sat Sep 15 01:38:59 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/seaice: adding ice salinity HSALT as a prognostic variable
8    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
9    o pkg/ecco: allow user defined cost function contributions
10    o testreport:
11      Allow to choose (per experiment) the list of tested output variables
12       and the main variable (used to issue a pass/FAIL ) ;
13      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
14      - default is unchange: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
15      Also modify printing of summary:
16       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
17       b) echo the list of tested variables in the individual summary.txt of
18          each experiment.
19    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
20      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
21      (but still depend on the tile decompostion of the domain).
22    o pkg/seaice: change a discretization detail to make the B-grid code
23      "more symmetric". This change is likely to remove all "ridges/leads" that
24      where quasi-aligned with the grid in B-grid solutions. It may also be
25      the solution to the stress coupling issues with the B-grid.
26    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
27      remove .cvsignore from input dir. (since testreport no longer run here).
28    o pkg/thsice:
29     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
30     - fix reshaping of sea-ice just after advection:
31       melt all the ice only if ice-volume is too small.
32     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
33       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
34     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
35    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
36      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
37    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
38      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
39      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
40      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
41      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
42      -> update output.txt
43    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
44     this affects truncation error: -> update output.txt of exp:
45      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
46      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
47    
48    checkpoint59f
49    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
50    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
51      a bounded range (in forward mode)
52    o pkg/ecco, ctrl, autodiff and mom_common:
53     internal parameter controls, completements of implementations
54    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
55    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
56      (not seem any difference in testing results).
57    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
58       at face corners.
59    o pkg/generic_advdiff:
60     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
61      loop range indices for computing vertical advection tendency
62      and do the calculation in the interior only (no overlap) ;
63      for now, only implemented for SOM advection (to save CPU time).
64     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
65    o exch2 adjoint
66      First set of changes:
67      - add exch2 hand-written adjoint templates
68      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
69        This will require cleanup in pkg/autodiff/*.F
70        (changed routines currently kept separate in verif. code/)
71      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
72        that used to hide exch2 or cubed-sphere specific code
73        (commented via 'cph-exch2')
74    o pkg/seaice
75      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
76    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
77       output of global_ocean.cs32x15.thsice .
78    
79    checkpoint59e
80    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
81      for B-grid vector (not yet tested) and C-grid vector (<- only used
82      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
83    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
84      (#ifdef ALLOW_SALT_PLUME)
85    o gather_2d/scatter_2d: removed halo regions
86    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
87      scheme and the corresponding test case (under front_relax dir). For now,
88      only available with Skew-flux form and not yet tested in realistic set-up.
89      adjoint: store directives updated, but gradient checks deteriorated,
90      so maybe GM/Redi adjoint is now broken.
91    o seaice adjoint
92      * add AREA, HEFF, HSNOW as control variable
93        (should not change lab_sea results)
94      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
95    o pkg/seaice:
96      * added computation of saltFlux in seaice_growth;
97        For time being, sea ice salinity is assumed constant
98        contribution of snow flooding to freshening of sea ice is neglected.
99        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
100        defaults to 0.0 in order to maintain backward compatibility.
101        Typical values for SEAICE_salinity are 4 to 10 g/kg.
102      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
103      * added SEAICE_availHeatFrac, which specifies fraction of surface level
104        heat content used to melt or grow ice
105      * commented out cap of HICE: it helps keep ice thinner
106      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
107      * applied OBCS T/S mask to HEFFM sea ice mask
108    
109    checkpoint59d
110    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
111     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
112     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
113    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
114     and change default value of parameter "GM_Small_Number";
115     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
116       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
117       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
118    o pkg/ecco: cost function when applying pkg/smooth to controls
119    o pkg/ctrl: add forcingPrecond run time parameter
120    o pkg/seaice:
121     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
122     - fix bug in metric terms of u-equation in LSR solver (implicit part),
123       changes verification/lab_sea
124     - rearrange implicit part of u-equation in LSR solver to make it easier to
125       read, understand, and debug. This causes changes at the truncation level.
126     - fix (serious) bug in the boundary conditions (sign error in the implicit
127       part) of the LSR solver. Changes all LSR results.
128     - fixed problem with HSNOW initialization to avoid thick snow when AREA
129       is initilized with small values - does not change lab_sea results.
130     - added HsnowFile initialization capability
131    o pkg/smooth: addition to model/src and pkg/ctrl so allow
132     initialization of pkg/smooth and application to control vector
133    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
134    o dependencies: pkg/profiles requires pkg/cal
135    o pkg/profiles:
136     - added option ALLOW_PROFILES_GENERICGRID
137         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
138         that interpolation information (grid points and coefficients) is provided
139         within the netcdf input files.
140         -> sample matlab scripts can be found in MITgcm_contrib/gael
141         that allow you to prepare netcdf input files.
142     - also modified: cleaner include statements, cleaner error print statements,
143       cleaner stops when error, and more tests of the netcdf input files consistency.
144    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
145    o pkg/seaice:
146     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
147       requires a new routine: seaice_diagnostics_fill.F
148     - make sure that seaice does not move if not forced (pressure replacement
149       method, Hibler and Ip, 1995), changes results
150     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
151     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
152       It is turned off by default (=-1.), because it changes the results.
153     - make it possible to read AREA from a file, too.
154    
155    checkpoint59c
156    o add S/R and diagnostics for oceanic mixed-layer depth
157    o move GMRedi call after all vertical mixing schemes (including KPP)
158    o pkg/thsice:
159     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
160      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
161    o pkg/obcs:
162     - bug fix for balance code
163    o pkg/seaice:
164      - allow values of SEAICE_elasticParm > 1
165      - add new parameter SEAICE_evpTauRelax as an alternative
166        to SEAICE_elasticParm
167      - make lsr boundary conditions free slip (by default), changes result
168      - add code for no slip boundary conditions for lsr
169      - set minimum of zeta to zero (and not 4e8) (changes results)
170      - add a cap on AREA after advecting AREA if seaice_growth is not called
171    o change calculation of Visbeck K:
172      - no longer depend on tapering scheme; instead, compute slope (limited
173        by GM_maxSlope). this is equivalent to what was comuted before with
174        clipping or linear tappering.
175      - fix vertical averaging (wrong by 1/2 level)
176      - leave the old version (but will not be maintained) within
177        #ifdef OLD_VISBECK_CALC / #endif
178      - update output of exp. ideal_2D_oce
179    o change error catch in calc_r_star to improve vectorization
180    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
181      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
182    o adjoint:
183      Re-organized adjoint checkpointing according to Matt Mazloff
184      (but with modifs/completions/cleanups)
185      Storing is now bundled into large arrays to optimized I/O
186      (and second step in cleanup of the_main_loop)
187    
188    checkpoint59b
189    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
190      - export/import (between ocean & coupler) fields needed for ocean DIC.
191    o pkg/seaice:
192      - get rid of three more exchanges seaice_calc_viscosities (required
193        different loop boundaries in seaice_lsr and seaice_ocean_stress)
194      - bug fix in seaice_ocean_stress (update of lab_sea required)
195      - reduce loop boundaries to necessary minimum also in seaice_evp
196      - go back to the old way of computing deltaC/Z as the adjoint likes that
197        better
198    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
199      passive tracer to an Age Tracer) + update output.txt
200    o pkg/exf:
201      - implement A-grid / C-grid selection for wind-stress input files.
202      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
203      for now, in exf_bulk_largeyeager04.F only :
204      - change implementation for case where windspeed + 2. components wind-stress
205        are read-in. AND use rhoConstFresh to convert evap.
206    o pkg/seaice:
207      - use correct EXCH_UV for wind-forcing (on A-grid).
208      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
209        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
210    o pkg/exf:
211      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
212      EXF_INTERPOLATION:
213      - merge global_with_exf/code version of exf_interp_read.F
214        to the main code ;
215      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
216        reading the file ; Important: This options needs to be defined to recover
217        previous code.
218        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
219      - no longer loose real*8 precision along the way when using exf_iprec=64.
220    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
221      - change discretisation of evp-solver in order to avoid another exchange
222        (changes lab_sea) and clean up a little
223      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
224        help the adjoint (this also changes the results slightly)
225      - add a few "_d 0" where they had been missing in seaice_evp.F
226      - cleaning up: remove unused seaice_calc_rhs.F
227    o pkg/exf: some cleaning-up:
228      - change various "constants" into runtime parameters
229      - cleaned-up Large&Yeager04 routine which should eventually
230        replace exf_bulkformulae.F (changed names of S/R and CPP)
231        and merged various ALLOW_ATM_WIND options
232     only used with thsice pkg (in thsice_get_exf.F):
233      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
234        which are used when useStabilityFct_overIce=TRUE (= the default)
235      - change default values of ice & snow emissivity and scale downward LW
236        by ice & snow emissivity.
237    o pkg/thsice:
238     fix few little problems, in thsice_calc_thickn.F:
239      - growth vertically (and not laterally) if iceFrac == iceMaskMax
240      - melt only laterally if hIce < hThinIce (as the comments say)
241      and in thsice_extend.F:
242      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
243      - start to form ice as soon as the minimum ice-volume is reachable.
244     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
245      and cpl_aim+ocn
246    o pkg/kpp
247     - move computation of surface related input fields to KPP into a new
248       subroutine kpp_forcing_surf.F
249     - remove wrong (within bi,bj loops) EXCH calls.
250     - little cleaning (add argument myThid in last position, cvs header ...)
251     - for now, fix conservation problem by exchanging KPPviscAz (may not
252       be the best fix)
253    o pkg/seaice
254     - check for inconsistent evp parameter/cpp-flag combination
255     - remove leftover errIO flat for obsolete name list error handling
256    o OpenAD
257     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
258    
259    checkpoint59a
260    o pkg/seaice: some parameter clarifications and a little bit of clean up
261    o pkg/thsice: rename run-time parameters:
262       himin       -> hIceMin
263       himin0      -> hThinIce
264       hihig       -> hThickIce
265       i0          -> i0swFrac
266       transCoef   -> bMeltCoef
267       frac_energy -> fracMelting
268      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
269       with default values (for now) that do not change the results.
270      remove old version of thsice vars advection in pkg/seaice.
271    o in FFIELDS.h:
272      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
273      - make pLoad & sIceLoad always available (but still only used if
274         ATMOSPHERIC_LOADING is #define).
275    o pkg/kpp: replaced _KPP_RL with _RL
276    o bug fixes for vertical diffusivity computations when both KPP and
277        3D diffusivity arrays are used.
278    o pkg/seaice: fix bug in evp solver, while doing that
279      - change (improve?) discretization of stress computations for both
280        cgrid-lsr and evp solver
281      - add a new routine to compute strain rates
282      - the above changes lab_sea results
283      - add no slip conditions for evp solver (off by default), lsr-version
284        may follow
285      - fix exchange for shear at Z-points (does not change lab_sea)
286      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
287        (to force the user to pick a time step since there is not "safe" way
288        of choosing it)
289      - add principal stress diagnostics
290      - rearrange fields for evp a little to avoid having to call a: too many
291        exchanges and b: exchanges for stress trensor components which we do
292        not have.
293      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
294        of evp, complete rewrite for lsr case (latter is does not yet work
295        in all cases)
296    o pkg/kpp: add code to have mixing in shelf ice caverns
297      - add myThid to all kpp routines (long overdue)
298    
299    checkpoint59
300    o pkg/exf:
301      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
302        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
303      - move exf header files from lower_case.h to UPPER_CASE.h ;
304        add missing cvs Header & Name
305      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
306      - add namelist param. selectStressGridPosition, exf_monFreq
307      - retire many _CLIM routines, and remove data.exf_clim
308        + params moved to data.exf
309        + climsst, climsss now handled by exf_set_gen, i.e.
310          climss?period=0 refers to constant field,
311          climss?period=-12 to monthly forcing
312      - split up namelists in data.exf
313    o pkg/seaice:
314      - remove seaice_exch and seaice_exch_uv
315      - remove superfluous exchange of theta
316      - add myThid to seaice_budget_ocean/ice
317      - add new interface for atmospheric wind forcing (C-grid only)
318        + new routine
319        + two new field (taux, tauy for stress over ice)
320        + removed one global field (DAIRN) for C-grid case only
321    o pkg/thsise
322      - 2nd set of modifs for thsice adjoint in conjunction with exf
323    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
324    
325    checkpoint58y_post
326    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
327      vertical diffusivity, similar to that in MOM4; turned on using
328      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
329      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
330    o Added capability for 3D specification of background vertical diffusion
331      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
332      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
333      "data" file that contains the 3D vertical diffusivity coefficients.
334    o ice dynamics (pkg/seaice) with thsice thermodynamics:
335      - add code within pkg thsice to advect & diffuse sea-ice fields
336      similar to (and will replace) what has been added in  seaice_advdiff.F,
337      but: - conserving Mass, Heat & Salt.
338           - better when using non-linear advection scheme (not yet fully tested)
339           - can also be used in atmospheric set-up (for now, only the diffusion).
340    
341    checkpoint58x_post
342    o IO option for global-file compact format:
343      - add options when generating topology (utils/exch2/matlab-topology-generator)
344      - add I/O capability (pkg/mdsio).
345      - adapt utils/matlab/rdmds.m to read this format.
346      for now long-line format not yet supported by pkg/mdsio (& exch2).
347    o shelfice: add a few diagnostics
348    
349    checkpoint58w_post
350    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
351      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
352      (and replace horiVertRatio in NH code).
353      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
354                         and tutorial_plume_on_slope (sensitive to truncation)
355    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
356      directly to drive seaice model (C-grid only)
357    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
358     - reintroduce computation of wind from stress,
359     - compute tau (in exf_bulkformulae.F) from windstress averaged to
360       mass points to avoid tau = 0
361     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
362    o rdmnc.m: make it work with "global" files created with gluemnc
363    o rdmnc.m : some improvements in dealing with singleton dimension
364      (tested on all testreport mnc output files).
365    o genmake2: disable pkg/profiles if netcdf test fails.
366    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
367    o move call to cal_readparms up to make calendar parameters/variable available
368      to all packages
369    
370    checkpoint58v_post
371    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
372      useDynP_inEos_Zc tested.
373    o pkg/exf: changes to properly interpolate/mask/scale initial fields
374    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
375      and portions thereof.  See read_cs.txt for description and examples.
376    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
377      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
378      following the great-circle arc between those 2 points.
379    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
380      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
381    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
382     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
383     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
384     - still needs work (not working with some options ; efficiency to improve)
385       and serious testing.
386     - use this scheme for temperature & salinity in 2 advection test exp.:
387       advect_xy & advect_xz, respectively.
388    
389    checkpoint58u_post
390    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
391    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
392    o testreport: add option "-skipdir" to skip some test.
393    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
394      momentum calculation.
395    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
396    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
397      remove checkpoint.F and the_correction_step.F (no longer used);
398      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
399    o add option (linFSConserveTr) to correct for tracer source/sink due to
400      Linear Free surface
401    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
402    o pkg/thsice: fix reading mnc-pickups
403    
404    checkpoint58t_post
405    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
406    o pkg/mdsio:
407     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
408       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
409       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
410     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
411     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
412       either MDS_READ_FIELD or MDS_WRITE_FIELD )
413     - new S/R (to replace MDSWRITEMETA), which allows to write more
414       informations (variable names, time ...) to meta files.
415     - modify rdmds.m to give back the meta file content.
416    o pkg/diagnostics: change vertical interpolation to be safer, and more
417       flexible (define p-levels to interpolate to in data.diagnostics);
418      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
419       diagnostic pointer.
420    o pkg/seaice: more cleaning up of seaice_growth, added many comments
421    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
422    o fix multi-category seaice:
423     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
424       SEAICE_MULTICATEGORY
425     - fix short wave heat flux
426    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
427       and allow to use EVP solver. Change forward lab_sea: test both EVP
428       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
429    o Initial check-in of lab_sea adjoint
430      (very similar to natl_box_adjoint/code_seaice)
431      * used C-grid and EVP solver
432      * used KPP, GM/Redi
433      * uses inAdExact=.TRUE.
434      * gradient checks fail for both ADM and TLM
435        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
436        f.d. gradients actually seem more problematic than ADM, TLM gradients;
437        issue is related to forward mismatch between g77 an ifort
438    o pkg/seaice: overhaul of thermodynamics
439     - growth.F and groatb.F are replaced by new routine seaice_growth.F
440     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
441     - move a few global fields out of SEAICE.h into seaice_growth.F and
442       make them 2D (FICE/QNETO/ ...)
443     - remove FO (it is the same as QNETO)
444     - introduce a few local fields to avoid modifying external fields such
445       as atemp, etc.
446    
447    checkpoint58s_post
448    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
449      changed exf_set_gen.F so that
450        genperiod=0 means input file is one time-constant field and
451        genperiod=-12 means input file contains 12 monthly means
452    o CG2D: use pre-computed solver main-diagonal (stored in common block);
453      this affects truncation error ; generate new output file for exp. which
454      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
455        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
456        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
457        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
458        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
459        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
460    o start implementation of deep-atmosphere and anelastic formulation
461    o verification: remove 2nd copy of input files and use script "prepare_run"
462      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
463    o mom_common/vecinv/fluxform: fix a few initialisation isssues
464    o profiles: fix for multithreaded case
465    
466    o diagnostics: rename few diags:
467      s/'PRESSURE'/'RCENTER '/g
468      s/'TICE    '/'oceFreez'/g
469      s/'TAUX    '/'oceTAUX '/g
470      s/'TAUY    '/'oceTAUY '/g
471      s/'SWFLUX  '/'oceQsw  '/g
472      s/DIFx/DFxE/g
473      s/DIFy/DFyE/g
474      and add few ocean-forcing diagnostics:
475      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
476    o modifications to pkg/seaice/growth.F and budget.F, which change results of
477      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
478      as actual snow thickness.  It now refers everywhere to effective snow
479      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
480    
481    checkpoint58r_post
482    o modifications to pkg/seaice/growth.F, which change results of
483      lab_sea experiment: fixes pertain to melting snow over open water, to
484      masking EVAP under sea ice, and to using the correct AREA variable for
485      computations of EVAP, PRECIP, HSNOW, and GHEFF
486    o add ability to read bathy, salt, and theta using MNC (off by def)
487    o add flooding algorithm and advection of HSNOW for pkg/seaice;
488      both are turned off by default and do no change any results
489    o seaice advection with pkg/thsice: a step toward the use of non-linear
490      advection scheme, but #ifdef or commented out for now (requires more EXCH).
491    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
492      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
493      in natl_box (affects results @ truncation level: update output.txt)
494    o multi-threading and IO:
495      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
496      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
497        (needed to work with SingleCpuIO): tested in all verif. exp.
498    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
499      affects the results (but none of the verification test uses this scheme).
500    o Adding some pkg/diagnostics capability to pkg/seaice
501      (will certainly be subject to changes)
502    o ctrl: adding new control variables:
503      lwflux, lwdown, evap, snowprecip, apressure, runoff
504    
505    checkpoint58q_post
506    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
507      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
508      high_res_cube configuration by 4% on Columbia.
509    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
510      add (in global_with_exf/code) a version of EXF_INTERP_READ without
511      dynamical allocation (seems to work in multi-threaded).
512    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
513      single CPU io) so that TAF does not have to see EESUPPORT.h
514    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
515    
516    checkpoint58p_post
517    o obcs: stop if obcs is used with useCDscheme = .true.
518    o shelfice:
519     - fix a sign error so that no slip at shelfice interface works
520     - remove stop for combination non-hydrostatic code and shelfice. That does
521       not mean, that the results are correct, but at least they are numerically
522       stable
523    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
524    o added adjoint exch routined for all exch*3d* routines
525      and updated flow directives
526    
527    checkpoint58o_post
528    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
529      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
530    o change controling S/R for writing pickup file (new S/R do_write_pickup)
531      and clean-up reading/writing of pickup files.
532    o fix local version of read/write pickup (NH part) in rotating_tank/code
533    o simplify EXCH interface:
534     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
535     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
536    o added the regrid package
537    o shelfice:
538     - add a simple boundary layer scheme to reduce noise
539     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
540    
541    checkpoint58n_post
542    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
543       local variable (not in common block).
544    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
545      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
546      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
547        to work with SingleCpuIO.
548    o add "_d 0" to real constant of pkg/cfc subroutines ;
549       update exp. cfc_exemple & tutorial_cfc_offline output files.
550    o multi-threading and IO:
551      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
552        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
553      - barrier before and after reading.
554      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
555      - avoid using MDS_WRITELOCAL for LAND pkg output.
556      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
557        common-block variables ; Allows multi-threading with master-thread IO.
558    o change default MAX_NO_THREADS from 32 to 4 ;
559      and stop cleanly when MAX_NO_THREADS is too small.
560    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
561    
562    checkpoint58m_post
563    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
564       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
565    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
566       keep global_ocean.90x40x15 (for AD testing) with former secondary test
567       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
568    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
569        add MITgcm_tutorials (= code + all the tutorials)
570    o ecco, option to compute cost for total ssh (mean+anom)
571    o consistent with addition of ptracer and ssh in pkg/profiles
572    o profiles: adding ptracer and ssh
573    o testreport: change multi-test output-file name
574      (from output.txt.{name} to output.{name}.txt)
575    o profiles: now ok for mutli-tiles case
576    o seaice: add 4 parameters for different advection schemes for area,
577      (effective) seaice thickness, enthalphy, and snow height. Their default
578      is the standard parameter SEAICEadvScheme
579    o calc_gw:
580     - add cosFacU in zonal viscous flux (harmonic.visc.).
581     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
582       of tutorial_plume_on_slope.
583    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
584    o calc_gw: true flux-form, account for horizontal grid spacing.
585      update rotating_tank results, but not plume_on_slope (affected at
586      truncation level, 11 digits).
587    
588    checkpoint58l_post
589    o calc_gw:
590     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
591     - remove side-drag for now (need to fix it); update plume_on_slope results.
592     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
593    o commit code to make SST/SSS weights spatially variable
594      (based on either variable in-situ or variable initial T/S weights)
595    o pkg/ecco:
596      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
597        now based on horizontally varying weights wthetaLev, wsaltLev
598      * cost_averagesflags now returns year indices in addition to day, month
599      * sflux balance is performed on annual basis
600        (sflxumm, sfluxmm2, bal_sfluxmm)
601      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
602        including separate counting and multipliers
603    o pkg/rbcs
604      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
605    
606    checkpoint58k_post
607    o testreport:
608     - always build in dir. "build" (if not there, mkdir build instead of building
609       & running in input)
610     - run in dir run (if it exists), in build otherwise.
611     - call prepare_run (if input/prepare_run exists)
612     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
613    o pkg/exf modifications to interpolation and rotation routines for more
614       reasonable treatment of North Pole singularity: for tracers North Pole
615       value is set to northernmost zonal-mean value, for zonal velocity it is
616       set to zero, and for meridional velocity it is set to northernmost value.
617    o pkg/exf/exf_check_range.F
618     - add tile index to diagnostics and move stop statement to the very
619       end of the routine.
620    o pkg/diagnostics: (diagnostics_main_init.F)
621      define title of isomorphic variables according to the current config.
622    o pkg/thsice with pkg/seaice dynamics:
623    - fix domain of computation (interior only, required for exf) and do exchanges
624    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
625    o towards a standard way of dealing with multi-threading in MONITOR
626      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
627  o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)  o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
628     to W momentum equation in nonhydrostatic and quasihydrostatic runs.       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
629  o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.  o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.

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