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| AMBROSIO,BRUNA G.; SOUSA,PAULO H.G.O.; GAGLIARDI,MARCELO H.; SIEGLE,EDUARDO. |
| Abstract Wave energy gradients between and along the margins of inlet channels play an important role in defining the inlet margins’ evolutionary processes, mainly those related to spit erosion or accretion, and inlet migration. The aim of this study is to understand the wave power distribution along the margins of a tidal inlet (Cananéia inlet, São Paulo, Brazil), its variation over time, and the influences of the ebb tidal delta morphology on the incoming waves. To evaluate changes in bathymetry and morphology of submersed features, we apply geoprocessing techniques to analyze nautical charts from the Brazilian Navy from 1939, 1971, 1985 and 2004. The numerical model MIKE21 SW was applied to assess wave propagation and nearshore wave power. Hence, wave... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Wave action; Ebb tidal delta; Tidal inlet; Numerical modeling. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100602 |
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| PAIVA,BÁRBARA P.; SCHETTINI,CARLOS A.F.; PEREIRA,MARÇAL D.; SIEGLE,EDUARDO; MIRANDA,LUIZ B.; ANDUTTA,FERNANDO P.. |
| ABSTRACT Estuarine processes are directly related to the interaction of its forcing conditions with the local morphology. In this study we assess the implications of the opening of a new inlet on the hydrodynamics and suspended sediment concentration (SSC). A set of physical parameters have been measured in the Itanhém river estuary, a small, shallow and mangrove fringed tropical estuary in Northeastern Brazil. Field surveys have been conducted in August 2007 and January 2008, separated by an important morphological change. Our observations show that even shortening the lower estuary channel in 2 km, the inlet opening did not imply in changes in the estuarine circulation. However, SSC increased after the inlet opening. General estuarine circulation showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estuarine circulation; Sediment fluxes; Morphological changes; Tidal asymmetry. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000401265 |
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