Title :
An accurate analysis of L-band SAR backscatter sensitivity to forest biomass
Author :
Castel, Thierry ; Beaudoin, André ; Picard, Ghislain ; Le Toan, Thuy ; Caraglio, Yves ; Houllier, François
Author_Institution :
CIRAD-amis-amap, Montpellier, France
Abstract :
The results of a modelling approach are used to assess the sensitivity of the L-band backscattering coefficient to forest parameters. Vertical backscatter profiles were generated and it is pointed out that the main scatterers change as a function of growth stage and polarization. The link between the backscattering coefficient and the density and diameter of the main scatterers was assessed. Correlation through allometric equations with stand density and basal area and thus with bole volume, explained the polarization behaviour of the backscatter sensitivity to stem volume
Keywords :
backscatter; forestry; geophysical techniques; radar cross-sections; radar theory; remote sensing by radar; synthetic aperture radar; vegetation mapping; L-band; SAR; UHF; allometric equations; allometry; backscatter sensitivity; backscattering coefficient; basal area; biomass; bole volume; forest; forestry; geophysical measurement technique; growth stage; model; modelling; polarization; radar polarimetry; radar remote sensing; stand density; stem volume; synthetic aperture radar; vegetation mapping; vertical profile; Backscatter; Biomass; Cyclic redundancy check; Data analysis; Equations; L-band; Needles; Polarization; Radar scattering; Synthetic aperture radar;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-6359-0
DOI :
10.1109/IGARSS.2000.859641
