A comparative study of Terra ASTER, Landsat TM, and SPT HRG data for land cover classification in the Brazilian Amazon.
2005
2005
Reduction in the populations of the Amazonian manatee Trichechus inunguis, due mainly to over-fishery, was drastic to the point that they were included amongst important Brazilian and International lists of endangered species. The study of its spatial distribution is, among other things, a way of generating knowledge that can subsidize its conserva...
Pages: 1381-1388
Atmospheric influence on electromagnetic radiation is a severe obstacle to remote sensing. Analysis and interpretation of aerial images are difficult due to the different effects caused by atmospheric scattering, absorption and weather conditions. The atmosphere has an influence on the measured signal and can drastically alter the spectral nature o...
This work proposes an automatic technique to be applied to water body segmentation in images acquired with low spectral resolution sensor as the newest digital photogrammetric cameras (DMC, HRSC-AX and ADS40) and satellite systems like CBERS and IKONOS, which have only four spectral bands, in the visible spectrum. To achieve that, two indices are u...
Pages: 705-712
Pages: 731-736
O objetivo desse trabalho foi analisar a distribuição da cobertura vegetal de diversas porções da Floresta Nacional (FLONA) do Tapajós (FNT), no Pará, através de atributos florísticos e fitossociológicos apoiados por imagens de satélites, em áreas de floresta primária (FP) e floresta secundária (FS). Para isso foram amostrados 35 transectos de 10 m...
Este trabalho dedica-se à definição e mapeamento de unidades da paisagem com potencial para ecoturismo. A área de estudo deste protótipo inclui a quase totalidade do município de Capitólio e parte dos municípios de São João Batista do Glória e São José da Barra, na região do médio Rio Grande, em Minas Gerais. Trata-se de uma área com enorme potenci...
This paper describes a methodology for systematic land use/land cover classification on a regional scale, with emphasis on a low cost and highly automatized approach. This methodology is based on multitemporal analyses of surface reflectance data from the Moderate Resolution Imaging Spectroradiometer (MODIS), which is located on board NASA's Terra ...