Morfometria de sistemas lacustres da planície aluvial do médio rio Araguaia
Carregando...
Data
2005-09
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
The aim of this study was to identify and classify the lake systems of
the Araguaia River floodplain. The study area extends from Aruana, State of Goiás, to Luiz
Alves, State of Goiás, along 256 km. A total of 293 lakes were identified and grouped in ten
categories: abandoned channel lakes, linked abandoned channels, oxbow, filled oxbows, and
composite oxbows, lakes formed on meander scrolls, composite lakes on scrolled
floodplain, lakes formed by lateral accretion, blocked valleys and embankment lakes. The
main objective was to characterize morphometric parameters for 20 lakes in the middle
plain of the Araguaia River and compare the different values between high and low river
stages. Area, perimeter, depth, length and maximum width, and shoreline development
were obtained using satellite Landsat 5 TM and 7 ETM+ images and a SPRING Geographic
Information System. The variability of morphometric parameters during flood and low
river stages changed significantly. Approximately 65% of the lakes showed shoreline
development (Dp) > 4 because of the general lakes tendency to have an elongated shape.
Descrição
Palavras-chave
Rio Araguaia, Lagos de planície, Morfometria, Sensoriamento remoto, Araguaia River, Alluvial plain lakes, Morphometry, Remote sensing
Citação
MORAIS, Roberto Prado de; OLIVEIRA, Leandro Gonçalves; LATRUBESSE, Edgardo Manuel; PINHEIRO, Rúbia Christina Diógenes. Morfometria de sistemas lacustres da planície aluvial do médio rio Araguaia. Acta Scientiarum. Biological Sciences, Maringá, v. 27, n. 3, p. 203-213, jul./ set. 2005.