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revision 1.1552 by mlosch, Mon Dec 19 11:51:22 2011 UTC revision 1.1585 by jmc, Mon Jan 30 18:42:11 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 pkg/seaice:
8      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
9        and climsst/sss even when using seaice (to prevent calculation that might
10        use SST on land); does not affect any verification exp.
11      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
12        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
13    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
14      over land (non-legacy code)
15    o vectorize salt_plume package:
16      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
17      - this code computes plumebk everywhere (also over land), thus requires
18        code to avoid divisions by zero and catch the case of kLev=Nr.
19      - efficiency of salt_plume_frac is still sub-optimal
20    o tools (genmake2):
21      - fix makefile NAME specification (option: -makefile NAME) by adding
22        "-f $MAKEFILE" in few places where it was missing including makedepend
23        command (contribution from Paul).
24    
25    checkpoint63i (2012/01/24)
26    o model/src:
27      - add factorized versions of some EOS code to find_rho.F,
28        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
29    o model/src:
30      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
31      - change default celsius2K from 273.16 to 273.15
32      - to keep results unchanged, add back old value of celsius2K in verification
33        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
34         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
35    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
36      to make TAF generate vectorizable code
37    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
38       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
39       have flags that do this more efficiently.
40    o pkg/diagnostics/diagstats_calc.F
41      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
42    o pkg/obcs (with exch2):
43      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
44        and remove code (in obcs_readparms.F) which was based on EXCH of indices
45        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
46    o pkg/exf and seaice exp:
47      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
48        so that switching off area & heff advection flags does not affect results.
49      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
50      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
51        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
52        results of verification experiments: 1D_ocean_ice_column(fwd),
53        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
54        and offline_exf_seaice (all 4).
55    o pkg/seaice:
56      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
57        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
58      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
59        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
60        not multi-dim advection;
61      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
62        SHORTWAVE_HEATING #undef.
63    o optim: make Makefile more robust (?)
64    o pkg/obcs:
65      * fix treatment of obcs_read_pickup for TAF
66    o pkg/shelfice:
67      * add missing initialisation of num_shifwflx
68      * new adjoint verification exp. for isomip
69      * change Prandtl and Schmidt numbers from generic formulations
70        (in terms of model diffus. and visc.) to separate runtime
71        parameters, with Holland and Jenkins (1999) default values.
72    o pkg/exf (interpolation):
73      - extended input field (2 rows) near the N & S poles:
74        * fill in with the symetric value (when even Nb of data in longitude)
75        * add average value at the poles only for scalar quantities ; for vector
76          component interpolation, skip the averaging and keep duplicated values,
77          unless the 2 components have same location (uvInterp=T) in which case
78          interpolate the 2 components together using S/R EXF_INTERP_UV.
79      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
80        together: this allows to account properly for local orientation when
81        averaging at N & S pole.
82      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
83        exf-interpolation near N & S poles. Undef by default.
84      - add debug check/print on 1rst iter if debugLevel >=2.
85    o pkg/exf:
86      - change masking flags definition (no longer "parameter"), put them in
87        common block and set them in S/R EXF_INIT_FIXED.
88      - change recognized masking flag from s,u,v to c,w,s since the mask
89        to use (maskC,W,S) depends on position on model grid and has little to
90        do with scalar/vector difference; fix masking if using P-coordinates.
91      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
92        and update results of exp. global_with_exf (x2).
93      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
94    o pkg/obcs
95      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
96    o pkg/exf (interpolation):
97      - assume periodicity in X only if input field cover full longitude range.
98      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
99        and should vectorise).
100      - fix input lat of the 2 added row (in case we provide N.pole data).
101    
102    checkpoint63h (2011/12/30)
103    o pkg/seaice:
104      - change declaration of UVM from _RL to _RS in order to get B-grid
105        uIce,vIce monitor when _RS = real*4
106    o pkg/offline:
107      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
108      - compute vertical velocity if not read from file (switch on exactConserv
109        & staggerTimeStep);
110      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
111    o verification:
112      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
113        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
114        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
115      - update output of exp. global_ocean.cs32x15.viscA4 after changing
116        grid-file angles (used here for coriolis-3d);
117      - remove (or gzip) few files not needed to run fizhi-cs experiments.
118    o pkg/exf (vector interpolation):
119      - rotate vector component toward local grid-axis orientation using grid-angles
120        (stored in GRID.h) instead of locally computed rotation angle; keep old code
121        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
122    o pkg/seaice:
123      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
124        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
125    o pkg/PKG_OPTIONS.h files:
126      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
127        outside of the #ifdef ALLOW_THISPKG / #endif block.
128      - update verification/*/code/PKG_OPTIONS.h files.
129    o add a verification experiment (offline_exf_seaice/input.seaice) that test
130      the B-grid LSOR solver
131    o pkg/seaice: sort out emissivity and long wave radiation step 2:
132      - add emissivity for snow and ice as new run-time parameters
133        (unfortunately) that default to the corresponding exf values; this
134        changes results in most verification experiments so that for backward
135        compatibility these parameter have to be set explicitly to inconsistent
136        values (ugly);
137      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
138        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
139        until we agree how to handle this bug properly
140    o pkg/exf (interpolation):
141      - add a set of run-time param ({inputfield}_interpMethod), one for
142        each interpolated input field, to select the interpolation method
143        with a value of zero switching off the interpolation;
144      - print interpolation parameters to standard output;
145      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
146        (to use instead runoff_interpMethod=0 in data.exf).
147      - simplify default setting of interpolation parameters (for all fields,
148        set position to match model grid cell-center position, leading to trivial
149        interpolation in case of regular Lat-Lon grid) and fix for the case of
150        non-uniform delY.
151    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
152       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
153       this factor is absolutely required, because the lw exitance (= out-going
154       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
155       where the reflectivity rho = 1-emissivity for conservation reasons. Once
156       this is established, we can remove the CPP-Flag (if we want to).
157    o pkg/seaice:
158      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
159        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
160      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
161        what the name implies (and not emissivity*BoltzmannConstant), this means
162        the old default value of 5.5e-8 now means
163        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
164        S/R exf_readparms
165      - FV-discretization of the B-grid LSOR solver, turn on with
166        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
167        of the calling routine dynsolver, so that B and C-grid code look a
168        little more alike.
169      - fix index bugs in ostres.F (B-grid code)
170    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
171  o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the  o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
172    default for SEAICE_emissivity, if useEXF; requires setting a wrong    default for SEAICE_emissivity, if useEXF; requires setting a wrong
173    parameter value in global_ocean.cs32x15/input.seaice/data.seaice for    parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
# Line 20  o pkg/seaice/seaice_growth.F: Line 184  o pkg/seaice/seaice_growth.F:
184  o pkg/seaice/seaice_model.F:  o pkg/seaice/seaice_model.F:
185    Remove this patholigical case treatment in evolution branch,    Remove this patholigical case treatment in evolution branch,
186    where it is un-necessary and breaks conservation.    where it is un-necessary and breaks conservation.
187    Update global_ocean.cs32x15/results accordingly for    Update global_ocean.cs32x15/results accordingly for
188    output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt    output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
189  o model/src:  o model/src:
190    useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in    useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
191    external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.    external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
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