Tropical Forest Mapping using Multiband Interferometric and Polarimetric SAR Data

Statistics – Applications

Scientific paper

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Scientific paper

The potential of the combined use of multi-band polarimetric and interferometric 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 L-band VV-polarisation interferometric images was achieved. This fusion allows accounting for the disturbing effects of relief on the backscatter level in the fully polarimetric classification procedure applied. It will be shown that many 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 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 and height, will be presented.

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