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revision 1.1544 by jmc, Tue Dec 6 19:31:02 2011 UTC revision 1.1571 by mlosch, Fri Jan 6 09:40:35 2012 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o optim: make Makefile more robust (?)
8    o pkg/shelfice: add missing initialisation of num_shifwflx
9    o pkg/exf (interpolation):
10      - extended input field (2 rows) near the N & S poles:
11        * fill in with the symetric value (when even Nb of data in longitude)
12        * add average value at the poles only for scalar quantities ; for vector
13          component interpolation, skip the averaging and keep duplicated values,
14          unless the 2 components have same location (uvInterp=T) in which case
15          interpolate the 2 components together using S/R EXF_INTERP_UV.
16      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
17        together: this allows to account properly for local orientation when
18        averaging at N & S pole.
19      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
20        exf-interpolation near N & S poles. Undef by default.
21      - add debug check/print on 1rst iter if debugLevel >=2.
22    o pkg/exf:
23      - change masking flags definition (no longer "parameter"), put them in
24        common block and set them in S/R EXF_INIT_FIXED.
25      - change recognized masking flag from s,u,v to c,w,s since the mask
26        to use (maskC,W,S) depends on position on model grid and has little to
27        do with scalar/vector difference; fix masking if using P-coordinates.
28      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
29        and update results of exp. global_with_exf (x2).
30      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
31    o pkg/obcs
32      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
33    o pkg/exf (interpolation):
34      - assume periodicity in X only if input field cover full longitude range.
35      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
36        and should vectorise).
37      - fix input lat of the 2 added row (in case we provide N.pole data).
38    
39    checkpoint63h (2011/12/30)
40    o pkg/seaice:
41      - change declaration of UVM from _RL to _RS in order to get B-grid
42        uIce,vIce monitor when _RS = real*4
43    o pkg/offline:
44      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
45      - compute vertical velocity if not read from file (switch on exactConserv
46        & staggerTimeStep);
47      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
48    o verification:
49      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
50        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
51        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
52      - update output of exp. global_ocean.cs32x15.viscA4 after changing
53        grid-file angles (used here for coriolis-3d);
54      - remove (or gzip) few files not needed to run fizhi-cs experiments.
55    o pkg/exf (vector interpolation):
56      - rotate vector component toward local grid-axis orientation using grid-angles
57        (stored in GRID.h) instead of locally computed rotation angle; keep old code
58        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
59    o pkg/seaice:
60      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
61        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
62    o pkg/PKG_OPTIONS.h files:
63      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
64        outside of the #ifdef ALLOW_THISPKG / #endif block.
65      - update verification/*/code/PKG_OPTIONS.h files.
66    o add a verification experiment (offline_exf_seaice/input.seaice) that test
67      the B-grid LSOR solver
68    o pkg/seaice: sort out emissivity and long wave radiation step 2:
69      - add emissivity for snow and ice as new run-time parameters
70        (unfortunately) that default to the corresponding exf values; this
71        changes results in most verification experiments so that for backward
72        compatibility these parameter have to be set explicitly to inconsistent
73        values (ugly);
74      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
75        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
76        until we agree how to handle this bug properly
77    o pkg/exf (interpolation):
78      - add a set of run-time param ({inputfield}_interpMethod), one for
79        each interpolated input field, to select the interpolation method
80        with a value of zero switching off the interpolation;
81      - print interpolation parameters to standard output;
82      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
83        (to use instead runoff_interpMethod=0 in data.exf).
84      - simplify default setting of interpolation parameters (for all fields,
85        set position to match model grid cell-center position, leading to trivial
86        interpolation in case of regular Lat-Lon grid) and fix for the case of
87        non-uniform delY.
88    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
89       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
90       this factor is absolutely required, because the lw exitance (= out-going
91       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
92       where the reflectivity rho = 1-emissivity for conservation reasons. Once
93       this is established, we can remove the CPP-Flag (if we want to).
94    o pkg/seaice:
95      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
96        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
97      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
98        what the name implies (and not emissivity*BoltzmannConstant), this means
99        the old default value of 5.5e-8 now means
100        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
101        S/R exf_readparms
102      - FV-discretization of the B-grid LSOR solver, turn on with
103        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
104        of the calling routine dynsolver, so that B and C-grid code look a
105        little more alike.
106      - fix index bugs in ostres.F (B-grid code)
107    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
108    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
109      default for SEAICE_emissivity, if useEXF; requires setting a wrong
110      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
111      backward compatiblity
112    o model/src: use sigmaR in calc_ivdc
113    
114    checkpoint63g (2011/12/16)
115    o pkg/seaice/seaice_growth.F:
116      fix heat conservation of the coupled ocean-seaice system.
117      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
118      solid vs liquid water treatment is resolved via QNET.
119    o pkg/seaice/seaice_growth.F:
120      add missing term for sublimation in saltFlux, which was breaking conservation.
121    o pkg/seaice/seaice_model.F:
122      Remove this patholigical case treatment in evolution branch,
123      where it is un-necessary and breaks conservation.
124      Update global_ocean.cs32x15/results accordingly for
125      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
126    o model/src:
127      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
128      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
129    o pkg/obcs:
130      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
131      tendency for temperature and salinity that is then applied to update
132      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
133      horizontal advection and diffusion contributions on the boundary (in
134      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
135      removing the mask in S/R timestep_tracer. The advantage of this approach is
136      that the updated tracer values include contributions from the surface
137      forcing and vertical diffusion.
138      This modification changes exp4.stevens because of vertical diffusion.
139    o model/src:
140      change non-curvilinear grid setting to also work with exch2 + blank tiles:
141      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
142        face dimensions.
143      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
144        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
145        and INI_SPHERICAL_POLAR_GRID.
146      change test-experiment global_ocean.90x40x15:
147      - split the domain in many more tiles (9x4 tiles of 10x10 each);
148      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
149      - update results of both test (std & dwnslp).
150    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
151       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
152    o model/src:
153      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
154        and fix initialisation when using sigma-coords.
155    o model/src:
156     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
157       to their current value at the beginning of forward_step.F": add a new run-time
158       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
159     - set doResetHFactors=T in the following test exp:
160        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
161        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
162        and tutorial_global_oce_in_p (nonLinFS in p)
163  o pkg/ecco  o pkg/ecco
164    - added IES cost term    - added IES cost term
165  o verification/advect_xz  o verification/advect_xz

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