Evaluation of floodings events in the Norte Fluminense, Rio de Janeiro, using remote sensing imagery

  • José Carlos Mendonça Universidade Estadual do Norte Fluminense Darcy Ribeiro
  • Ramon Morais de Freitas Instituto Nacional de Pesquisas Espaciais
  • Yosio Edemir Shimabukuro Instituto Nacional de Pesquisas Espaciais
  • Valdo da Silva Marques Universidade Estadual do Norte Fluminense Darcy Ribeiro
Keywords: Remote sensing, Linear Spectral Mixture Model, water resources, floodings

Abstract

This study aimed to identify and to quantify the flooded area in the 2008/2009 summer period in the Norte Fluminense region, Rio de Janeiro state using remote sensing images. For this, Landsat-5 TM and CBERS-2B CCD images acquired before and after flooding occurrence were used. In these images, the Linear Spectral Mixture Model – LSMM was applied in order to highlight the areas occupied by water bodies. It was concluded that the water bodies in the region suffered an increment of 2.61 times corresponding to 99,000 ha of total area of water surface based on the comparison of the TM image acquired on July 26, 2007 (without flooding) with TM acquired on November 17, 2008 and with the CCD image of January 20, 2009 acquired after the rainy season in this region.

Author Biographies

José Carlos Mendonça, Universidade Estadual do Norte Fluminense Darcy Ribeiro
Centro de Ciências e Tecnologias Agropecuárias / CCTA - Laboratório de Engenharia Agrícola / LEAG
Ramon Morais de Freitas, Instituto Nacional de Pesquisas Espaciais
Instituto Nacional de Pesquisas Espaciais / INPE - Divisão de Sensoriamento Remoto - DSR
Yosio Edemir Shimabukuro, Instituto Nacional de Pesquisas Espaciais
Instituto Nacional de Pesquisas Espaciais / INPE - Divisão de Sensoriamento Remoto - DSR
Valdo da Silva Marques, Universidade Estadual do Norte Fluminense Darcy Ribeiro
Centro de Ciência e Tecnologia / CCT - Laboratório de Meteorologia / LAMET
Imagem da fração água/sombra gerada pelo MLME aplicado sobre a imagem CCD CBERS-2B (A), e fotografias aéreas de alguns trechos dessas áreas inundadas (B e C).
Published
27/04/2012
Section
Papers