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		<isbn>ISBN978-953-7</isbn>
		<label>lattes: 1646956319628219 1 SantosGraçGonç:2009:PoReSc</label>
		<citationkey>SantosNarvGraçGonç:2009:PoReSc</citationkey>
		<title>Polarimetric responses and sctattering mechanisms of tropical forests in the Brazilian Amazon (accepted)</title>
		<year>2009</year>
		<secondarytype>PRE LI</secondarytype>
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		<author>Santos, Joao Roberto dos,</author>
		<author>Narvaes, Igor S.,</author>
		<author>Graça, Paulo Mauricio Lima de Alencastro,</author>
		<author>Gonçalves, Fábio Guimarães,</author>
		<group>DSR-OBT-INPE-MCT-BR</group>
		<group>DSR-OBT-INPE-MCT-BR</group>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas Espaciais (INPE)</affiliation>
		<affiliation>Instituto Nacional de Pesquisas da Amazônia (INPA)</affiliation>
		<affiliation>Oregon State University</affiliation>
		<electronicmailaddress>jroberto@ltid.inpe.br</electronicmailaddress>
		<electronicmailaddress>igor@dsr.inpe.br</electronicmailaddress>
		<electronicmailaddress>pmlag@inpa.gov.br</electronicmailaddress>
		<electronicmailaddress>fabio.goncalves@oregonsatet.edu</electronicmailaddress>
		<editor>Ho, P. G.,</editor>
		<e-mailaddress>jroberto@ltid.inpe.br</e-mailaddress>
		<booktitle>Geoscience and Remote Sensing</booktitle>
		<publisher>IN-TECH</publisher>
		<city>Vienna</city>
		<pages>183-206</pages>
		<transferableflag>1</transferableflag>
		<contenttype>External Contribution</contenttype>
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		<keywords>tropical forest, target decomposition, monitoring, polarimetric signature.</keywords>
		<abstract>This chapter discusses the polarimetric responses of PALSAR (L-band) data and scattering mechanisms of some tropical forest typologies based on target decomposition. The fundamentals of polarimetric theory related to both SAR topics under development are summarized. For representation of polarimetric signatures, the cross-section of the forest target was plotted on a bi-dimensional graphic as a function of the orientation angle, ellipticity angle and the intensity of co-polar components of the radar signal. The analysis of scattering mechanisms was done by the association of entropy and mean alpha values of each sample, plotted in a bi-dimensional classification space. This study improves the understanding of the interaction mechanisms between L-band PALSAR signals and structural parameters supporting the forest inventory in the Brazilian Amazon region.</abstract>
		<area>SRE</area>
		<language>en</language>
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