SAR observation of rip currents off the Portuguese coast

• Tipo: Capítulo ou Parte de Livro
• Data: 2008

Autores

Da Silva, JCB (Autor) Outra

Livro

Título: Remote Sensing of the European Seas

Páginas: 399-410

ISBN: 9781402067716

Indexação

ISI Web of Knowledge

Scopus - 3 Citações

Outras Informações

ID Authenticus: P-008-YWH

DOI: 10.1007/978-1-4020-6772-3_30

Abstract (EN): Signatures of rip currents can be identified in SAR images and aerial photographs of the near-shore. An area on the Portuguese West coast (bathymetry and wave climate of which are briefly described) was studied. An image corresponding to low wind speed conditions is shown, where a series of rip-like cell features are consistent with rip current morphology. A simple model is presented to explain the signatures, based on wind contrast due to the relative water motion within rip currents. The model is discussed for near-threshold wind conditions of Bragg wave excitation. © 2008 Springer Science+Business Media B.V.

Idioma: Inglês

Tipo (Avaliação Docente): Científica