This module computes the emissivity of a vegetation layer above a
rough soil surface, using the I
2EM model.
Various parameters of the rough surface can be specified, such as the
dielectric constant
ϵ =
ϵ' -j
ϵ'',
a few parameters of the
correlation function, and the single-scattering albedo,
the extinction coefficient and the
depth of the vegetation layer. The ground surface roughness is
constrained to ( rms height / correlation length ) ≤ 0.25.