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Master's Dissertation
DOI
10.11606/D.21.2012.tde-28032013-110945
Document
Author
Full name
Talitha de Souza Lourenço
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2012
Supervisor
Committee
Siegle, Eduardo (President)
Giannini, Paulo Cesar Fonseca
Yassuda, Eduardo Ayres
Title in Portuguese
Variabilidade interanual do clima de ondas e sua influência no litoral Sudeste e Sul do Brasil
Keywords in Portuguese
MIKE 21 SW
Modelagem numérica
Ondas de tempestade
Propagação de onda
Transporte longitudinal
Abstract in Portuguese
As ondas geradas por tempestades causam as alterações mais significativas na costa arenosa. Este trabalho avaliou a influência da variabilidade interanual do clima de ondas nos processos costeiros do litoral Sudeste e Sul do Brasil. O clima de ondas foi determinado a partir de resultados entre 1997 e 2010 do modelo numérico NOAA WAVEWATCH III (NWW3) com seis pontos de água profunda. O modelo numérico MIKE 21 SW foi utilizado para verificar o efeito destas ondas na Enseada de Massaguaçu (SP) e no trecho Sul de Imbituba (SC). Foram simuladas as direções de ondas mais frequentes e foi calculado o transporte longitudinal de sedimentos gerado por elas. As ondas do quadrante Sul foram mais energéticas e não foi identificado um padrão na variação interanual do clima de ondas. Em São Paulo, as direções de onda mais frequentes (Sul e Sul-Sudoeste) não geraram quantidade efetiva de transporte de sedimentos, e foram as ondas de Leste-Sudeste a Sudeste-Sul que geraram a maior quantidade de transporte longitudinal de sedimentos. Em Santa Catarina foram as ondas de Leste a Sul que geraram maior transporte longitudinal de sedimentos.
Title in English
Interanual wave climate variability and its influence on the south and southeast coast of Brazil, numerical
Keywords in English
Longshore transport
MIKE 21 SW
Numerical modeling
Storm waves
Wave propagation
Abstract in English
The coastal dynamics is mainly controlled by waves, being the energetic storm waves the most influential. This study aims to assess the wave climate influence on coastal processes in the South and Southeastern coast of Brazil. The wave climate was defined through NOAA WAVEWATCH III (NWW3) numerical model results for six offshore points, from 1997 to 2010. In order to propagate the waves onshore the Spectral Wave FM from MIKE 21 numerical model has been applied on Massaguaçu bay (SP) and Imbituba (SC). Most frequent storm waves have been simulated for each year and sector and sediment longshore transport along each sector was calculated. Waves from the South are the most energetic. There is no clear interanual pattern in the time-series. For SP, the most frequent directions (South and South-Southwest) do not generate considerable longshore sediment transport, with East-Southeast to Southeast-South waves generating most sediment transport, which was northwards for all beaches. In SC the sediment transport was northwards in Vila and Vila Nova beaches and southwards on Itapirubá beach, with waves from Eastern and Southern quadrants generating more longshore sediment transport.
 
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Publishing Date
2013-04-11
 
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
  • LOURENCO, T. S., and SIEGLE, E. Effects of interanual wave climate variation on the southern coast of Brazil. In Ocean Sciences Meeting - AGU, Salt Lake City, 2012. Abstracts., 2012. Abstract. Available from: http://www.sgmeet.com/osm2012/viewabstract2.asp?AbstractID=11199.
  • LOURENCO, T. S., e SIEGLE, E. Ação de ondas de tempestade em duas regiões do litoral brasileiro. In IX Simpósio sobre Ondas, Marés, Engenharia Oceânica e Oceanografia por Satélite - OMARSAT, Arraial do Cabo, 2011. Resumos IX OMARSAT., 2011. Resumo.
  • LOURENCO, T. S., e SIEGLE, E. Espalhamento direcional de ondas no Sul e Sudeste do Brasil. In XIV Congresso Latino-Americano de Ciências do Mar - COLACMAR, Balneário Camboriú, 2011. Resumos COLACMAR., 2011. Resumo.
  • LOURENCO, T. S., e SIEGLE, E. Variação angular na incidência das ondas no litoral Sul de Santa Catarina, Brasil. In XIV Congresso Latino-Americano de Ciências do Mar - COLACMAR, Balneário Camboriú, 2011. Resumos COLACMAR., 2011. Resumo.
All rights of the thesis/dissertation are from the authors
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