%0 Conference Proceedings
%4 sid.inpe.br/marte2/2017/10.27.16.20.36
%2 sid.inpe.br/marte2/2017/10.27.16.20.37
%@isbn 978-85-17-00088-1
%F 60143
%T Análise Multitemporal da Cobertura de Dunas ao longo do município de São José do Norte/RS
%D 2017
%A Espinoza, Jean Marcel de Almeida,
%A Júnior, Adilson José Pereira,
%A Ferreira, João Ausgusto De Carvalho,
%@electronicmailaddress jean.espinoza@riogrande.ifrs.edu.br
%E Gherardi, Douglas Francisco Marcolino,
%E Aragão, Luiz Eduardo Oliveira e Cruz de,
%B Simpósio Brasileiro de Sensoriamento Remoto, 18 (SBSR)
%C Santos
%8 28-31 maio 2017
%I Instituto Nacional de Pesquisas Espaciais (INPE)
%J São José dos Campos
%P 7376-7381
%S Anais
%1 Instituto Nacional de Pesquisas Espaciais (INPE)
%X The present work was to determine the variation of the dune cover along the area of the municipalityof são josé do norte, rs between the years of 2005 and 2011. For that, TM-Landsat 5 orbital images of the years2005, 2006, 2009 and 2011. With these images, the normalized difference snow index (NDSI), classified bythresholds, was calculated, which resulted in a dune image for each date. These images were used together withthe technique of detection of changes to analyze variations in the coverage of dunes along the area. The loss onthe dune area is a consequence of human occupation and, mainly, changes in vegetation cover, caused by theinsertion of exotic species (pinus and eucalyptus). The subtraction in the area of the dune field observed totaledan amount of about 13000 hectares. These data, however, are not yet sufficient to clarify hypotheses about thedynamics of the area. The losses in the dune fields totaled average rates of around 2000 hectares / year,following the pattern of the north-easterly (NE) loam winds.
%9 Oceanografia e sistemas costeiros
%@language pt
%3 60143.pdf