CARACTERIZAÇÃO MORFOMÉTRICA DA BACIA HIDROGRÁFICA DO RIO DA PRATA, CASTELO, ES
DOI:
https://doi.org/10.15809/irriga.2011v16n4p369Abstract
1 RESUMO
Este trabalho teve como objetivo determinar as características morfométricas da bacia hidrográfica do rio da Prata, em Castelo, Espírito Santo. As bases de dados utilizadas foram curvas de nível digitalizadas e a hidrografia mapeada da bacia. Em ambiente de Sistemas de Informação Geográficas foram calculados vários índices morfométricos, relacionados à geometria, hidrografia e topografia da bacia hidrográfica. A área da bacia foi igual a 132,7 Km2 e o perímetro igual a 72,21 km. A bacia do rio da Prata mostrou-se baixa tendência à ocorrência de enchentes, com coeficiente de compacidade igual a 1,8.
Palavras-chave: sistemas de informação geográfica, diagnóstico físico, enchente, escoamento superficial
MORPHOMETRIC CHARACTERIZATION OF PRATA RIVER WATERSHED, CASTELO, ES (BRAZIL)
2 ABSTRACT
The objective of the present paper was to determine Prata river watershed morphometric characteristics. Database used consisted into digitalized level curves and mapped hydrography of the watershed. Several morphometric indexes, related to geometric, hydrographic and topographic watershed characteristics, were calculated using GIS software. The drainage area was 132.7 Km² and the perimeter was 72.21 km. The Prata river watershed showed low susceptibility to flooding and compactness coefficient of 1.8.
Keywords: geographic information systems, physical diagnosis, flooding, runoff
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