%0 Conference Proceedings
%4 dpi.inpe.br/marte/2011/06.28.14.11
%2 dpi.inpe.br/marte/2011/06.28.14.11.17
%@isbn 978-85-17-00056-0 (Internet)
%@isbn 978-85-17-00057-7 (DVD)
%T Detecção de movimentação crustal recente em Manaus (AM) utilizando informações de sensoriamento remoto por radar (interferometria RADARSAT-1 e modelo digital de elevação da SRTM)
%D 2011
%A Ramos, Fernanda Ledo Gonçalves,
%A Miranda, Fernando Pellon de,
%A Landau, Luiz,
%A Silva, Clauzionor Lima da,
%@affiliation Université de Savoie - LISTIC/Polytech Annecy-Chambéry
%@affiliation Centro de Pesquisas e Desenvolvimento da Petrobras – CENPES
%@affiliation Universidade Federal do Rio de Janeiro – COPPE/UFRJ
%@affiliation Universidade Federal do Amazonas – UFAM
%@electronicmailaddress fernanda@gmail.com
%@electronicmailaddress fmiranda@petrobras.com.br
%@electronicmailaddress landau@lamce.coppe.ufrj.br
%@electronicmailaddress csilva@ufam.edu.br
%E Epiphanio, José Carlos Neves,
%E Galvão, Lênio Soares,
%B Simpósio Brasileiro de Sensoriamento Remoto, 15 (SBSR).
%C Curitiba
%8 30 abr. - 5 maio 2011
%I Instituto Nacional de Pesquisas Espaciais (INPE)
%J São José dos Campos
%P 8162-8169
%S Anais
%1 Instituto Nacional de Pesquisas Espaciais (INPE)
%K radar remote sensing, interferometry, RADARSAT-1, SRTM, neotectonics, Manaus, sensoriamento remoto por radar, interferometria, RADARSAT-1, SRTM, neotectônica, Manaus.
%X Synthetic Aperture Radar (SAR) systems installed in orbital platforms have been lately used for the remote detection of recent crustal movement, possibly associated with neotectonic events. These systems are advantageous because they are able to cover vast regions using an extremely high accuracy, which represents an advance for terrain monitoring. The prime objective of the present paper is to understand, from a tectonic and structural standpoint, the results obtained by an interferometric study recently carried out in the Manaus area, Amazonas State, in which a stack of archived RADARSAT-1 data has been processed. The research question to be addressed has been approached through the analysis of the drainage network extracted with the aid of SRTM (Shuttle Radar Topography Mission) data, as well as through the comparison with images from different optical sensors and with geologic/geomorphologic information available in the literature. As a result, it has been noticed that the area of crustal movement (AMC in Portuguese) detected by the interferometric study is located above the tectonic unstable watershed that separates the sub-basins of igarapés Tarumã-Açu and São Raimundo. Both areas are characterized by the pronounced occurrence of tilting. In addition, the AMC is situated in the vicinities of a circular drainage anomaly with 4 km of diameter, which strongly suggests a geologic origin for the interferometric feature.
%9 Geologia
%@language pt
%3 p0141.pdf