evolução temporal e espacial da desembocadura lagunar de cananéia (sp) temporal and spatial evolution of the canénia logoonal iniet

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ID: 159748
1990
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Abstract
O processo evolutivo da desembocadura lagunar de Cananéia, principal canal de interligação entre o oceano e a região lagunar de Cananéia-Iguape (SP), vem sendo acompanhado mais detalhadamente desde a década de 50. Superpondo-se os contornos de linha de costa, realizados a partir de fotos aéreas obtidas entre os anos de 1952 e 1981, pode-se constatar mudanças significativas nas proximidades desta desembocadura lagunar. Entre as mais importantes tem-se o recuo da face norte e o avanço da parte leste, na porção arenosa voltada para o oceano da Ilha do Cardoso, além de erosão da margem da desembocadura lagunar localizada na porção sul da Ilha Comprida. A evolução geomorfológica do litoral sul paulista está intimamente relacionada aos mecanismos hidrodinámicos atuantes junto à costa e a circulação atmosférica nesta parte do continente sul-americano. A interação desses fenômenos é fundamental na intensa mobilidade dos sedimentos arenosos que obstruem e/ou causam o deslocamento dos canais de acesso à região lagunar, bem como nos processos erosivos e deposicionais que afetam as faces oceânicas das ilhas do Cardoso e de Cananéia.
Shoreline changes of the Cananéia-Iguape lagoonal system (São Paulo State) have been reconstructed in detail through interpretation of aerial photographs since the 1950's. The most important changes are the recession of the northern and the advancement of the eastern side of the sandy segment of Cardoso Island, headed to the ocean, and the erosion of the lagoonal margin in the southern section of Comprida Island. The geomorphologic evolution of the southcoast of São Paulo shows to be closely related to the coastal hydrodynamic mechanisms induced by the atmospheric circulation of this part of the South American continent The interaction of these phenomena is fundamental not only to the mobility of sandy sediments, that obstruct or change the displacement of the channels that lead to the lagoonal area, but also for the erosive and depositional processes that affect the ocean side of Cardoso and Cananéia islands.
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tesseler1990brazilianevoluo Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Moysés G. Tesseler;Kenitiro Suguio;Michel M. de Mahiques;Valdenir V. Furtado
Journal Journal of genetic counseling
Year 1990
DOI
10.1590/S1679-87591990000100004
URL
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-87591990000100004
Keywords
coastal erosion cananéia oudet

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