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Tropical Forest Mapping using Multiband Interferometric and Polarimetric SAR Data

Kemal Unggul Prakoso (1)

(1) Wageningen University, Nieuwe Kanaal 11, 6709 PA Wageningen, Netherlands

Abstract

The potential of the combined use of multi-band interferometric and multi-band polarimetric airborne SAR for tropical forest mapping are discussed using the NASA/JPL AirSAR data from the PacRim-2 2000 campaign in Indonesia. Through orthorectification of the C-, L- and P-band fully polarimetric images, an accurate geometrically registration to the C- and L-band VV-polarisation interferometric images was achieved. This fusion allows to account for the disturbing effects of relief on the backscatter level in the fully polarimetric classification procedure applied. It will be shown that many land cover and forests types, and the effects of forest fire, thus can be accurately mapped, even in hilly terrain. This will be demonstrated by the analysis of two large, independently acquired, ground truth data sets of land cover observations. In addition biomass and vegetation height data were collected for a large number of forest transects and several non-forest plots. Empirical relations with L- and P-band backscatter, and C- and L-band interferometric coherence, will be presented.

 

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