SHDOM: Surface File Format
There are currently four types of surface property files:
Lambertian, Fresnel, RPV, and Ocean. The file format allows the
temperature and reflection properties to vary arbitrarily across the
surface. The surface properties are specified on a regular, evenly
spaced grid. There should be Nx*Ny points in the surface file. The
properties are bilinearly interpolated to the domain bottom grid point
locations. The surface domain is also periodic in X and Y, so that the
domain is delX*Nx by delY*Ny in size. Thus there are Nx cells across,
and the routine that reads in the surface properties assigns the
properties of the left side of the domain (IX=1) to the right side of
the last cell (IX=NX+1). A uniform surface can be specified by having
Nx=1 and Ny=1 and making delX and delY large enough to cover the whole
domain.
The Lambertian surface file format is as follows:
L
Nx Ny delX delY
IX IY SfcTemp SfcAlbedo
. . .
The Fresnel surface is specified with the complex index of refraction of
the dielectric surface (Mre, Mim):
F
Nx Ny delX delY
IX IY SfcTemp Mre Mim
. . .
The RPV surface is specified with three parameters (rho0, k, Theta):
R
Nx Ny delX delY
IX IY SfcTemp rho0 k Theta
. . .
The Ocean surface is specified with the near surface wind speed (m/s)
and the chlorophyl-alpha pigment concentration (mg/m^3):
O
Nx Ny delX delY
IX IY SfcTemp WindSpeed PigmentConc
. . .
The IX and IY are the surface grid numbers (1 to Nx, 1 to Ny). The surface
temperature is specified in Kelvin.