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SAR observation of rip currents off the Portuguese coast

Title
SAR observation of rip currents off the Portuguese coast
Type
Chapter or Part of a Book
Year
2008
Authors
Da Silva, JCB
(Author)
Other
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Book
Pages: 399-410
ISBN: 9781402067716
Indexing
Publicação em ISI Web of Knowledge ISI Web of Knowledge
Other information
Authenticus ID: P-008-YWH
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.
Language: English
Type (Professor's evaluation): Scientific
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