Author(s)

F.C.B. Mascarenhas & R.C.V. da Silva

Abstract

The use of remote sensing data from satellite images is presently a wide world technique in the analysis of damage and dimensions of large flood plains. In large river basins with scarce hydrological and topographic data it is very difficult to accurately define the limits of flooded area from water levels and cartographic maps, as required to the mathematical modelling of flood propagation on a flood plain. This paper presents a methodology of analysis and scheming of flood plains using LANDSAT4 and 5 satellite images, which leads to the obtaining of the following information: the dimensions of the flooded area and their time evolution; the continuous distribution of the flood plain widths; the existence of non-flooded areas for different floods by superimposing two images; the potential lateral in

Keywords