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		<isbn>978-85-17-00088-1</isbn>
		<label>59743</label>
		<citationkey>LimaBarrTaglBarr:2017:CoAtIm</citationkey>
		<title>Correção atmosférica de imagens do Landsat 8 para análise comparativa de influência no cálculo de NDVI e SAVI</title>
		<format>Internet</format>
		<year>2017</year>
		<secondarytype>PRE CN</secondarytype>
		<numberoffiles>1</numberoffiles>
		<size>1218 KiB</size>
		<author>Lima, Amanda Aparecida de,</author>
		<author>Barros, Ana Clara de,</author>
		<author>Tagliarini, Felipe de Souza Nogueira,</author>
		<author>Barros, Zacarias Xavier de,</author>
		<electronicmailaddress>aalima2603@gmail.com</electronicmailaddress>
		<editor>Gherardi, Douglas Francisco Marcolino,</editor>
		<editor>Aragão, Luiz Eduardo Oliveira e Cruz de,</editor>
		<e-mailaddress>daniela.seki@inpe.br</e-mailaddress>
		<conferencename>Simpósio Brasileiro de Sensoriamento Remoto, 18 (SBSR)</conferencename>
		<conferencelocation>Santos</conferencelocation>
		<date>28-31 maio 2017</date>
		<publisher>Instituto Nacional de Pesquisas Espaciais (INPE)</publisher>
		<publisheraddress>São José dos Campos</publisheraddress>
		<pages>2762-2769</pages>
		<booktitle>Anais</booktitle>
		<organization>Instituto Nacional de Pesquisas Espaciais (INPE)</organization>
		<transferableflag>1</transferableflag>
		<abstract>The atmospheric correction is a fundamental step for many works that make use of remote sensing. This research aims to anilyse the results generated by the calculation of vegetation index Normalized Difference Vegetation Index (NDVI) and Soil-adjusted Vegetation Index (SAVI) generated by the atmospheric correction of the 4 and 5 band of Landsat 8, and also in absence of the atmospheric correction to determine whether the applicability of this procedure is applicable to the calculation of SAVI, whose index already has a coefficient of adjustment of brightness for correction of the image. The results according with the land use classes in the calculation of NDVI generate a significant diference for the Native Forest and Reforestation use classes with a value of 0.16 for both, looking to the underestimated values for not performing the atmospheric correction procedure. In contrast, the SAVI was also obtained with the most significant difference in the class of Native Forest with the value 0.11, but showing underestimated values in the presence of atmospheric correctionwith the visual aid of the map, it was possible to conclude that the SAVI does not present significant results when performing the atmospheric correction, and when comparing it with the NDVI it is perceived that it does not have such a positive answer regarding its applicability in the vegetation studies.</abstract>
		<area>SRE</area>
		<type>Correção atmosférica</type>
		<language>pt</language>
		<targetfile>59743.pdf</targetfile>
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