T. Svoray et al., Relationship between green leaf biomass volumetric density and ERS-2 SAR backscatter of four vegetation formations in the semi-arid zone of Israel, INT J REMOT, 22(8), 2001, pp. 1601-1607
Relationships between ERS-2 SAR backscatter and the biophysical properties
of four Mediterranean vegetation formations (forest, shrubs, dwarf shrubs a
nd herbaceous vegetation) were assessed. Low correlation was found between
ERS-2 SAR backscatter and both aboveground biomass and LAI. However, signif
icantly higher correlation (r =0.92) was found between ERS-2 SAR backscatte
r and a new index of Green leaf biomass Volumetric Density (GVD). These res
ults stress the dominant influence of leaves in the uppermost part of the v
egetation layer on ERS-2 SAR backscatter.