Avaliacao DA Area de Inundacao Do Canal de Sao Goncalo Atraves de Imagens TM-Landsat 5 (Evaluation of the Flooding Areas of the Sao Goncalo Canal Through Landsat 5 Thematic Mapper Images)

摘要

Two LANDSAT TM images were digitally processed on the I-100 Image Analyzer of INPE (Sao Jose dos Campos, Sao Paulo). The floodable area of the canal de Sao Goncalo was studied: one image associated to an exceptionally high inundation (06-11-84) and one image associated with a normal water level (12-04084) were compared. The digital classification (1:50,000 scale) led to a map (1:100,000 scale) showing the limits of the flooding areas. This work demonstrated the usefulness of remote sensing techniques to delimitate and identify floodable areas.