B. Pinty et al., THE EFFECT OF SOIL ANISOTROPY ON THE RADIANCE FIELD EMERGING FROM VEGETATION CANOPIES, Geophysical research letters, 25(6), 1998, pp. 797-800
The solution of the radiation transfer equation in a vegetation canopy
requires the specification of appropriate boundary conditions, especi
ally at the interface between the vegetation layer and the soil. This
short paper documents the effect of soil brightness and anisotropy on
the field of radiances emerging at the top of the vegetation canopy in
the solar domain. The study is based on the analysis of the sensitivi
ty of an advanced radiation transfer model. It is shown that the scatt
ering properties of the soil must be carefully assigned to ensure a co
rrect interpretation of data collected over optically thin vegetation
canopies.