Only global surface datasets can be created on a non-regular grid,
such as a gaussian grid. To generate a surface dataset on a gaussian
grid, the cpp tokens LSMLON and LSMLAT must be set to the
desired resolution (e.g., LSMLON=128, LSMLAT=64 for a T42
grid, and MKSRF_OFFLINE_FGRID must be set to the appropriate
dataset in $CSMDATA/rawdata specifying the model grid, land
mask and land fraction for the model grid. At T42 resolution, a
surface dataset, ``surface-data.128x064.nc'', will be created in the
model executable directory. This dataset may be renamed by the user to
be more self-explanatory.
The following namelist will result in the generation of a surface
dataset on a global gaussian grid.
&clmexp CASEID = 'create_global_surfdat' NSREST = 0 NESTEP = 2 START_YMD = 19971231 DTIME = 1800 FSURDAT = ' ' FRIVINP_RTM = '$CSMDATA/rtmdata/rdirc.05' FPFTCON = '$CSMDATA/pftdata/pft-physiology' OFFLINE_ATMDIR = '$CSMDATA/NCEPDATA' MKSRF_OFFLINE_FGRID = '$CSMDATA/rawdata/T42_clm2_camfgrid_040802.nc' MKSRF_FVEGTYP = '$CSMDATA/rawdata/mksrf_pft.nc' MKSRF_FSOITEX = '$CSMDATA/rawdata/mksrf_soitex.10level.nc' MKSRF_FSOICOL = '$CSMDATA/rawdata/mksrf_soicol_clm2.nc' MKSRF_FLANWAT = '$CSMDATA/rawdata/mksrf_lanwat.nc' MKSRF_FGLACIER = '$CSMDATA/rawdata/mksrf_glacier.nc' MKSRF_FURBAN = '$CSMDATA/rawdata/mksrf_urban.nc' MKSRF_FLAI = '$CSMDATA/rawdata/mksrf_lai.nc' /
FSURDAT = ' '
A surface dataset named surface-data.128x064.nc will be created at run
time in the model executable directory.
MKSRF_OFFLINE_FGRID = '$CSMDATA/rawdata/T42_clm2_camfgrid_040802.nc'
Points to the dataset containing the model grid, land mask and
fractional land for the surface dataset.
MKSRF_FVEGTYP, MKSRF_FSOITEX, MKSRF_FSOICOL, MKSRF_FLANWAT, MKSRF_FGLACIER, MKSRF_FURBAN, and MKSRF_FLAI
Specifies the input datasets used to create the surface dataset.