H. Israelsson et J. Askne, IMPORTANCE OF DIHEDRAL REFLECTION IN RADAR REMOTE-SENSING OF FORESTS, International journal of remote sensing, 15(8), 1994, pp. 1585-1593
The radar backscattering from extraordinary poplar stands, where all t
he trunks are leaning in the same direction, has been modelled. Data a
cquired with the JPL/AIRSAR during the MAESTRO-1 campaign have been us
ed. At the C and L bands the backscattering is not influenced by the l
eaning of the trunks. At the P band the backscattering decreases at HH
polarization particularly. This can be predicted theoretically and is
explained by distortion of the trunk-ground dihedral reflection. A si
milar effect is obtained when topography affects the backscattering.