%0 Conference Proceedings
%4 dpi.inpe.br/sbsr@80/2006/11.14.18.56
%2 dpi.inpe.br/sbsr@80/2006/11.14.18.56.54
%@isbn 978-85-17-00031-7
%T Modelagem da emissividade da superfície terrestre em regiões montanhosas a partir de dados do sensor MODIS
%D 2007
%A Lopes, Pabrício Marcos Oliveira,
%A Rizzi, Rodrigo,
%A Valeriano, Dalton de Morisson,
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@electronicmailaddress pabricio@ltid.inpe.br
%@electronicmailaddress rizzi@ltid.inpe.br
%@electronicmailaddress dalton@ltid.inpe.br
%E Epiphanio, José Carlos Neves,
%E Galvão, Lênio Soares,
%E Fonseca, Leila Maria Garcia,
%B Simpósio Brasileiro de Sensoriamento Remoto, 13 (SBSR).
%C Florianópolis
%8 21-26 abr. 2007
%I Instituto Nacional de Pesquisas Espaciais (INPE)
%J São José dos Campos
%P 2797-2804
%S Anais
%1 Instituto Nacional de Pesquisas Espaciais (INPE)
%K emissivity, NDVI, MODIS, rainfall, mountain.
%X In this article, the NDVI (Normalized Difference Vegetation Index) from Terra/MODIS (Moderate Resolution Imaging Spectroradiometer) was used to estimate spectral emissivity using the algorithm developed by Valor and Caselles. Overall, estimated spectral emissivity values from forestry areas and pasture are in agreement with data obtained from literature. The cumulative water over bare soil and vegetation cover was the main reason of seasonal spectral emissivity variation. During the dry season, the spectral emissivity of the Paraiba do Sul river valley was quite different from the Mantiqueira mountain which was not observed during the rest of the year, when monthly rainfall is above 50 mm. The algorithm Valor and Caselles, applied to NDVI data from MODIS images can be used to estimate spectral emissivity over wide and homogeneous areas.
%9 Geoprocessamento: Aplicações e Modelagem Ambiental
%@language pt
%3 2797-2804.pdf