Monitoramento da superfície do solo usando indicadores ambientais provenientes de dados de satélite em órbita geoestacionária
Nenhuma Miniatura disponível
Data
2020
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
The geostationary orbit satellite Meteosat-10, has spectral bands that allow create that provides environmental indicators with high temporal resolution and low spatial resolution, allowing the monitoring of landscape phenology. However, for Brazil little has been used due to the high viewing angle of Meteosat-10(45 a 80º). Indicators like NDVI (Normalized Difference Vegetation Index), efficient for monitoring vegetation due to the simplicity and close relationship with the productivity of the vegetation, and the NDWI (Normalized Difference Water Index), which indicates the moisture of the soil surface combining the soil and the exposed vegetation, help to understand the environmental seasonality and occupation of watersheds. This article aims to evaluate the capacity of biophysical indicators, coming from the geostationary orbit satellite Meteosat-10, for the environmental monitoring of the soil surface, with hydrographic basins, Ottobasinlevel 5, from the state of Goiás, as the study area. Distrito Federal, from 2013 to 2015. For this purpose, NDVI, NDWI and precipitation with 12-day and monthly resolution were evaluated. Standardized indicators SPI (Standard Precipitation Index), SVI (Standard Vegetation Index) and SWI (Standard Water Index) were calculated for comparisons between years and obtaining the trend of each indicator. As a result, it is possible to identify and understand seasonal patterns of hydrographic basins in different regions and classes of use, demonstrating the potential of vegetation indicatorsfrom geostationary satellites, for monitoring soil cover in hydrographic basins, as well identify the highest sensitivity NDWI for monitoring surface changes.
Descrição
Palavras-chave
NDVI, NDWI, Meteosat-10, Monitoramento ambiental, Environmental monitoring
Citação
SILVEIRA JUNIOR, Carlos Roberto; FERREIRA JUNIOR, Laerte Guimarães; SILVA, Bernardo Barbosa. Monitoramento da superfície do solo usando indicadores ambientais provenientes de dados de satélite em órbita geoestacionária. Revista Brasileira de Geografia Física, Recife, v. 13, n. 6, p. 2944–2962, 2020. DOI: 10.26848/rbgf.v13.6.p2944-2962. Disponível em: https://periodicos.ufpe.br/revistas/index.php/rbgfe/article/view/244833. Acesso em: 25 jul. 2024.