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revision 1.817 by mlosch, Tue May 15 14:34:44 2007 UTC revision 1.859 by jmc, Fri Aug 17 20:51:27 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 add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
8    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
9       at face corners.
10    o pkg/generic_advdiff:
11     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
12      loop range indices for computing vertical advection tendency
13      and do the calculation in the interior only (no overlap) ;
14      for now, only implemented for SOM advection (to save CPU time).
15     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
16    o exch2 adjoint
17      First set of changes:
18      - add exch2 hand-written adjoint templates
19      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
20        This will require cleanup in pkg/autodiff/*.F
21        (changed routines currently kept separate in verif. code/)
22      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
23        that used to hide exch2 or cubed-sphere specific code
24        (commented via 'cph-exch2')
25    o pkg/seaice
26      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
27    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
28       output of global_ocean.cs32x15.thsice .
29    
30    checkpoint59e
31    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
32      for B-grid vector (not yet tested) and C-grid vector (<- only used
33      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
34    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
35      (#ifdef ALLOW_SALT_PLUME)
36    o gather_2d/scatter_2d: removed halo regions
37    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
38      scheme and the corresponding test case (under front_relax dir). For now,
39      only available with Skew-flux form and not yet tested in realistic set-up.
40      adjoint: store directives updated, but gradient checks deteriorated,
41      so maybe GM/Redi adjoint is now broken.
42    o seaice adjoint
43      * add AREA, HEFF, HSNOW as control variable
44        (should not change lab_sea results)
45      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
46    o pkg/seaice:
47      * added computation of saltFlux in seaice_growth;
48        For time being, sea ice salinity is assumed constant
49        contribution of snow flooding to freshening of sea ice is neglected.
50        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
51        defaults to 0.0 in order to maintain backward compatibility.
52        Typical values for SEAICE_salinity are 4 to 10 g/kg.
53      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
54      * added SEAICE_availHeatFrac, which specifies fraction of surface level
55        heat content used to melt or grow ice
56      * commented out cap of HICE: it helps keep ice thinner
57      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
58      * applied OBCS T/S mask to HEFFM sea ice mask
59    
60    checkpoint59d
61    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
62     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
63     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
64    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
65     and change default value of parameter "GM_Small_Number";
66     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
67       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
68       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
69    o pkg/ecco: cost function when applying pkg/smooth to controls
70    o pkg/ctrl: add forcingPrecond run time parameter
71    o pkg/seaice:
72     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
73     - fix bug in metric terms of u-equation in LSR solver (implicit part),
74       changes verification/lab_sea
75     - rearrange implicit part of u-equation in LSR solver to make it easier to
76       read, understand, and debug. This causes changes at the truncation level.
77     - fix (serious) bug in the boundary conditions (sign error in the implicit
78       part) of the LSR solver. Changes all LSR results.
79     - fixed problem with HSNOW initialization to avoid thick snow when AREA
80       is initilized with small values - does not change lab_sea results.
81     - added HsnowFile initialization capability
82    o pkg/smooth: addition to model/src and pkg/ctrl so allow
83     initialization of pkg/smooth and application to control vector
84    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
85    o dependencies: pkg/profiles requires pkg/cal
86    o pkg/profiles:
87     - added option ALLOW_PROFILES_GENERICGRID
88         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
89         that interpolation information (grid points and coefficients) is provided
90         within the netcdf input files.
91         -> sample matlab scripts can be found in MITgcm_contrib/gael
92         that allow you to prepare netcdf input files.
93     - also modified: cleaner include statements, cleaner error print statements,
94       cleaner stops when error, and more tests of the netcdf input files consistency.
95    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
96    o pkg/seaice:
97     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
98       requires a new routine: seaice_diagnostics_fill.F
99     - make sure that seaice does not move if not forced (pressure replacement
100       method, Hibler and Ip, 1995), changes results
101     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
102     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
103       It is turned off by default (=-1.), because it changes the results.
104     - make it possible to read AREA from a file, too.
105    
106    checkpoint59c
107    o add S/R and diagnostics for oceanic mixed-layer depth
108    o move GMRedi call after all vertical mixing schemes (including KPP)
109    o pkg/thsice:
110     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
111      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
112    o pkg/obcs:
113     - bug fix for balance code
114    o pkg/seaice:
115      - allow values of SEAICE_elasticParm > 1
116      - add new parameter SEAICE_evpTauRelax as an alternative
117        to SEAICE_elasticParm
118      - make lsr boundary conditions free slip (by default), changes result
119      - add code for no slip boundary conditions for lsr
120      - set minimum of zeta to zero (and not 4e8) (changes results)
121      - add a cap on AREA after advecting AREA if seaice_growth is not called
122    o change calculation of Visbeck K:
123      - no longer depend on tapering scheme; instead, compute slope (limited
124        by GM_maxSlope). this is equivalent to what was comuted before with
125        clipping or linear tappering.
126      - fix vertical averaging (wrong by 1/2 level)
127      - leave the old version (but will not be maintained) within
128        #ifdef OLD_VISBECK_CALC / #endif
129      - update output of exp. ideal_2D_oce
130    o change error catch in calc_r_star to improve vectorization
131    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
132      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
133    o adjoint:
134      Re-organized adjoint checkpointing according to Matt Mazloff
135      (but with modifs/completions/cleanups)
136      Storing is now bundled into large arrays to optimized I/O
137      (and second step in cleanup of the_main_loop)
138    
139    checkpoint59b
140    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
141      - export/import (between ocean & coupler) fields needed for ocean DIC.
142  o pkg/seaice:  o pkg/seaice:
143    - get rid of three more exchanges seaice_calc_viscosities (required    - get rid of three more exchanges seaice_calc_viscosities (required
144      different loop boundaries in seaice_lsr and seaice_ocean_stress)      different loop boundaries in seaice_lsr and seaice_ocean_stress)
# Line 53  o pkg/exf: some cleaning-up: Line 188  o pkg/exf: some cleaning-up:
188  o pkg/thsice:  o pkg/thsice:
189   fix few little problems, in thsice_calc_thickn.F:   fix few little problems, in thsice_calc_thickn.F:
190    - growth vertically (and not laterally) if iceFrac == iceMaskMax    - growth vertically (and not laterally) if iceFrac == iceMaskMax
191    - melt laterally only if hIce < hThinIce (as the comments say)    - melt only laterally if hIce < hThinIce (as the comments say)
192    and in thsice_extend.F:    and in thsice_extend.F:
193    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)    - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
194    - 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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