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revision 1.824 by mlosch, Wed May 30 09:27:05 2007 UTC revision 1.854 by jmc, Thu Jul 26 16:30:48 2007 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint59e
8    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
9      for B-grid vector (not yet tested) and C-grid vector (<- only used
10      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
11    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
12      (#ifdef ALLOW_SALT_PLUME)
13    o gather_2d/scatter_2d: removed halo regions
14    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
15      scheme and the corresponding test case (under front_relax dir). For now,
16      only available with Skew-flux form and not yet tested in realistic set-up.
17      adjoint: store directives updated, but gradient checks deteriorated,
18      so maybe GM/Redi adjoint is now broken.
19    o seaice adjoint
20      * add AREA, HEFF, HSNOW as control variable
21        (should not change lab_sea results)
22      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
23    o pkg/seaice:
24      * added computation of saltFlux in seaice_growth;
25        For time being, sea ice salinity is assumed constant
26        contribution of snow flooding to freshening of sea ice is neglected.
27        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
28        defaults to 0.0 in order to maintain backward compatibility.
29        Typical values for SEAICE_salinity are 4 to 10 g/kg.
30      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
31      * added SEAICE_availHeatFrac, which specifies fraction of surface level
32        heat content used to melt or grow ice
33      * commented out cap of HICE: it helps keep ice thinner
34      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
35      * applied OBCS T/S mask to HEFFM sea ice mask
36    
37    checkpoint59d
38    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
39     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
40     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
41    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
42     and change default value of parameter "GM_Small_Number";
43     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
44       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
45       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
46    o pkg/ecco: cost function when applying pkg/smooth to controls
47    o pkg/ctrl: add forcingPrecond run time parameter
48    o pkg/seaice:
49     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
50     - fix bug in metric terms of u-equation in LSR solver (implicit part),
51       changes verification/lab_sea
52     - rearrange implicit part of u-equation in LSR solver to make it easier to
53       read, understand, and debug. This causes changes at the truncation level.
54     - fix (serious) bug in the boundary conditions (sign error in the implicit
55       part) of the LSR solver. Changes all LSR results.
56     - fixed problem with HSNOW initialization to avoid thick snow when AREA
57       is initilized with small values - does not change lab_sea results.
58     - added HsnowFile initialization capability
59    o pkg/smooth: addition to model/src and pkg/ctrl so allow
60     initialization of pkg/smooth and application to control vector
61    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
62    o dependencies: pkg/profiles requires pkg/cal
63    o pkg/profiles:
64     - added option ALLOW_PROFILES_GENERICGRID
65         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
66         that interpolation information (grid points and coefficients) is provided
67         within the netcdf input files.
68         -> sample matlab scripts can be found in MITgcm_contrib/gael
69         that allow you to prepare netcdf input files.
70     - also modified: cleaner include statements, cleaner error print statements,
71       cleaner stops when error, and more tests of the netcdf input files consistency.
72    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
73    o pkg/seaice:
74     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
75       requires a new routine: seaice_diagnostics_fill.F
76     - make sure that seaice does not move if not forced (pressure replacement
77       method, Hibler and Ip, 1995), changes results
78     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
79     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
80       It is turned off by default (=-1.), because it changes the results.
81     - make it possible to read AREA from a file, too.
82    
83    checkpoint59c
84    o add S/R and diagnostics for oceanic mixed-layer depth
85    o move GMRedi call after all vertical mixing schemes (including KPP)
86    o pkg/thsice:
87     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
88      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
89  o pkg/obcs:  o pkg/obcs:
90   - bug fix for balance code   - bug fix for balance code
91  o pkg/seaice:  o pkg/seaice:
92    - allow values of SEAICE_elaticParm > 1    - allow values of SEAICE_elasticParm > 1
93    - make lsr boundary conditions free slip (by default)    - add new parameter SEAICE_evpTauRelax as an alternative
94        to SEAICE_elasticParm
95      - make lsr boundary conditions free slip (by default), changes result
96    - add code for no slip boundary conditions for lsr    - add code for no slip boundary conditions for lsr
97    - set minimum of zeta to zero (and not 4e8) (changes results)    - set minimum of zeta to zero (and not 4e8) (changes results)
98      - add a cap on AREA after advecting AREA if seaice_growth is not called
99  o change calculation of Visbeck K:  o change calculation of Visbeck K:
100    - no longer depend on tapering scheme; instead, compute slope (limited    - no longer depend on tapering scheme; instead, compute slope (limited
101      by GM_maxSlope). this is equivalent to what was comuted before with      by GM_maxSlope). this is equivalent to what was comuted before with
102      clipping or linear tappering.      clipping or linear tappering.
103    - fix vertical averaging (wrong by 1 level)    - fix vertical averaging (wrong by 1/2 level)
104    - leave the old version (but will not be maintained) within    - leave the old version (but will not be maintained) within
105      #ifdef OLD_VISBECK_CALC / #endif      #ifdef OLD_VISBECK_CALC / #endif
106      - update output of exp. ideal_2D_oce
107  o change error catch in calc_r_star to improve vectorization  o change error catch in calc_r_star to improve vectorization
108  o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and  o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
109    add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).    add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
110    o adjoint:
111      Re-organized adjoint checkpointing according to Matt Mazloff
112      (but with modifs/completions/cleanups)
113      Storing is now bundled into large arrays to optimized I/O
114      (and second step in cleanup of the_main_loop)
115    
116  checkpoint59b  checkpoint59b
117  o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):  o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
# Line 74  o pkg/exf: some cleaning-up: Line 165  o pkg/exf: some cleaning-up:
165  o pkg/thsice:  o pkg/thsice:
166   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
167    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
168    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
169    and in thsice_extend.F:    and in thsice_extend.F:
170    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
171    - start to form ice as soon as the minimum ice-volume is reachable.    - start to form ice as soon as the minimum ice-volume is reachable.
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