Wave Statistics and Space-time Extremes via Stereo Imaging

Fedele, Francesco and Benetazzo, Alvise and Gallego Bonet, Guillermo and Shih, Ping-Chang and Yezzi, Anthony and Barbariol, Francesco (2012). Wave Statistics and Space-time Extremes via Stereo Imaging. In: "The 22nd International Ocean and Polar Engineering Conference", 17/06/2012 - 22/06/2012, Rhodes, Greece.

Description

Title: Wave Statistics and Space-time Extremes via Stereo Imaging
Author/s:
  • Fedele, Francesco
  • Benetazzo, Alvise
  • Gallego Bonet, Guillermo
  • Shih, Ping-Chang
  • Yezzi, Anthony
  • Barbariol, Francesco
Item Type: Presentation at Congress or Conference (Speech)
Event Title: The 22nd International Ocean and Polar Engineering Conference
Event Dates: 17/06/2012 - 22/06/2012
Event Location: Rhodes, Greece
Title of Book: Proceedings of the ISOPE 22nd International Ocean and Polar Engineering Conference
Date: March 2012
Subjects:
Freetext Keywords: Stereo measurement, WASS, Wavenumber-frequency spectrum, Wave statistics, Space-time extremes.
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Señales, Sistemas y Radiocomunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

We present an analysis of the space-time dynamics of oceanic sea states exploiting stereo imaging techniques. In particular, a novel Wave Acquisition Stereo System (WASS) has been developed and deployed at the oceanographic tower Acqua Alta in the Northern Adriatic Sea, off the Venice coast in Italy. The analysis of WASS video measurements yields accurate estimates of the oceanic sea state dynamics, the associated directional spectra and wave surface statistics that agree well with theoretical models. Finally, we show that a space-time extreme, defined as the expected largest surface wave height over an area, is considerably larger than the maximum crest observed in time at a point, in agreement with theoretical predictions.

More information

Item ID: 10739
DC Identifier: http://oa.upm.es/10739/
OAI Identifier: oai:oa.upm.es:10739
Official URL: http://www.isope.org/
Deposited by: Dr Guillermo Gallego Bonet
Deposited on: 23 Apr 2012 08:11
Last Modified: 20 Apr 2016 18:58
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