Utilização de imagens do satélite CBERS-2 na atualização do sistema de informação de recursos hídricos do estado do Ceará, Brasil

Nowadays, there is a substantial deficit in the Bra zilian cartography, in terms of updating and generation of new maps and charts. Twenty-five percent of the Brazilian territory, including Amazon, st ill do not have charts in the 1:100.000 scale. The coverage is considerably less if the scale raises, for example to 1:25.000 scale, absent in 99 % of the