Statistics – Applications
Scientific paper
Jan 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.475..365m&link_type=abstract
In: Proceedings of the Third International Symposium on Retrieval of Bio- and Geophysical Parameters from SAR Data for Land Appl
Statistics
Applications
Forestry, Soils
Scientific paper
The works have underlined issues encountered when using L-band polarimetric data for forest biomass retrieval. The SAR data under studies have been acquired by two different SAR systems over a forest plantation and a natural forest. The results obtained on the plantation forest showed that all polarimetric discriminators have similar sensitivity range to forest biomass, and that phase based quantities are strongly correlated. The comparison between measurements over plantation and natural forests have shown the degradation of the sensitivity caused by the heterogeneity of natural forest. Slope and soil/ground conditions have been identified as the two characteristics which affect the robustness of retrieval algorithm. However, slope effect seems to less degrade the sensitivity of σ°HV and HH-VV coherence to forest biomass than the entropy and alpha angle.
Davidson Malcolm
Delbart Nicolas
Le Toan Thuy
Melon Pierre
Picard Ghislain
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