Y. Dong et al., A MODEL OF VOLUME ATTENUATION AND BACKSCATTERING BY FOLIAGE AT L-BANDS AND P-BANDS, International journal of remote sensing, 16(7), 1995, pp. 1231-1247
In accordance with the distorted Born approximation, a wave approach i
s developed for the volume attenuation and backscattering coefficients
associated with the foliage layer in forests at L- and P-bands. Since
the foliage layer is not the dominant layer in forest modelling at lo
nger wavelengths, the orientations of scatterers are assumed to be uni
formly distributed. As a result, the ensemble average electric polariz
ability of scatterers becomes isotropic, generating both volume attenu
ation and backscattering independent of polarization. It is shown that
multiple scattering effects due to both near and far scatterers are i
nsignificant. It is demonstrated that the total leaf biomass, the mean
leaf volume, leaf shape and the dielectric constant are key parameter
s for the model.