Análise dos padrões de degradação florestal e elaboração de chave de interpretação para imagens IRS2/ sensor AWiFS, no Estado do Pará.

Nowadays, the Amazon Region counts on many different programs for deforestation and degradation alerts. Among them, there is the DETER-B System (Near Real Time Deforestation Deforestation Detection System), which presents satisfactory results when serving as a basis for enforcement of the forest damages. However, it is necessary to test new methodologies and sensors to obtain data referring to this theme. This paper aims to analyze the forest degradation patterns and to elaborate an interpretation key for medium spatial resolution images in the State of Pará. In order to keep making improvements and refining the data generation towards the enforcement alerts emission, it was replicated the DETER-B System’s methodology to map degradation areas in the State of Pará using AWifs images in the TerraAmazon software. The interpretation key resulted in six classes, analyzed for the period comprehended between October and November, 2014. The obtained results allowed the generation of tables with quantification data and the percentage of degradation polygons – and also for the other classes –, as well as a map that illustrates the degradation scenario in the study area in the analyzed period.