Кл.слова (ненормированные):
Backscatter model -- Forest biomass -- SAR -- Terrain effect -- Backscattering -- Biomass -- Data reduction -- Forestry -- Polarization -- Radiometry -- Digital elevation model -- Remote sensing -- biomass -- digital elevation model -- forest -- mountain environment -- slope -- synthetic aperture radar -- Russian Federation
Аннотация: We investigated the possibility of using multiple polarization (SIR-C) L-band data to map forest biomass in a mountainous area in Siberia. The use of a digital elevation model (DEM) and a model-based method for reducing terrain effects was evaluated. We found that the available DEM data were not suitable to correct the topographic effects on the SIR-C radar images. A model-based slope correction was applied to an L-band cross-polarized (hv) backscattering image and found to reduce the topographic effect. A map of aboveground biomass was produced from the corrected image. The results indicated that multipolarization L-band synthetic aperture radar (SAR) data can be useful for estimation of total aboveground biomass of forest stands in mountainous areas. В© 2002 Elsevier Science Inc. All rights reserved.
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Держатели документа:
Department of Geography, University of Maryland, College Park, MD 20742, United States
NASA's Goddard Space Flight Center, Code 923, Greenbelt, MD 20771, United States
Sukachev Institute of Forest, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Sun, G.; Ranson, K.J.; Kharuk, V.I.