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    Wave statistics and space-time extremes via stereo imaging

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    2012-TPC-945Fedele.pdf (836.1Kb)
    Date
    2012-06
    Author
    Fedele, Francesco
    Benetazzo, Alvise
    Gallego, Guillermo
    Shih, Ping-Chang
    Yezzi, Anthony
    Barbariol, Francesco
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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.
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    http://hdl.handle.net/1853/48698
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    • Laboratory of Computational Computer Vision Publications [106]

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