%0 Conference Proceedings
%4 sid.inpe.br/marte2/2017/10.27.12.26.45
%2 sid.inpe.br/marte2/2017/10.27.12.26.46
%@isbn 978-85-17-00088-1
%F 60149
%T Análise multitemporal da vegetação na Bacia do Rio Brumado ? BA com uso do Índice de Vegetação Por Diferença Normalizada (NDVI)
%D 2017
%A Silva, Mateus Tinôco,
%A Vianna, Luana Menezes,
%A Lemos, Odair Lacerda,
%@electronicmailaddress mateus-tinoco@hotmail.com
%E Gherardi, Douglas Francisco Marcolino,
%E Aragão, Luiz Eduardo Oliveira e Cruz de,
%B Simpósio Brasileiro de Sensoriamento Remoto, 18 (SBSR)
%C Santos
%8 28-31 maio 2017
%I Instituto Nacional de Pesquisas Espaciais (INPE)
%J São José dos Campos
%P 1800-1807
%S Anais
%1 Instituto Nacional de Pesquisas Espaciais (INPE)
%X This study aimed to analyze the transformations occurred in the Brumado river basin unsing the Normalized Difference Vegetation Index (NDVI) calculated within Landsat 5 images in a temporal scale (07/10/1987 and 06/10/2011). NDVI is one of the most popular vegetation index, because it can compensate differences in illumination conditions, surface slope and any other unknown reason. Its proved that the vegetation has influence in the quality and the quantity of water in a basin. The studied area is located in the Center-South region of Bahia, and is an important tributary of Contas River, belonging to the Eastern Atlantic hydrographic region. The river basin is the basis for the management of water resources; for that, studies in these areas are so important. The images were processed in a GIS software. The results show the efficiency of the NDVI and image processing techniques to portray the land cover of an area and the changes that had happened. The percentage of the area without vegetation or covered by low density biomass increased among the years, while the portion covered by medium and high density biomass has decreased. Certainly, this had happened due the human impact against the vegetated areas, mostly for agricultural uses.
%9 Paisagens naturais
%@language pt
%3 60149.pdf