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    Observation of Short Wind Waves in Coastal Waters

    Source: Journal of Physical Oceanography:;1998:;Volume( 028 ):;issue: 007::page 1425
    Author:
    Hara, Tetsu
    ,
    Bock, Erik J.
    ,
    Edson, James B.
    ,
    McGillis, Wade R.
    DOI: 10.1175/1520-0485(1998)028<1425:OOSWWI>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Observations of wind-generated gravity?capillary waves have been made during two recent field programs in coastal environments. The results of wave slope spectra on clean water show a well-defined correlation with the wind friction velocity. However, spectral values at higher wavenumbers (above 200 rad m?1) are significantly higher than previous laboratory results. In the presence of surface films wave spectra may decrease by more than one order of magnitude at lower wind stresses. The dispersion characteristics of short waves vary markedly depending on the wavenumber, the wind stress, and the surface chemical condition. Some results in the presence of surface films at intermediate winds show much higher apparent phase speeds than the theoretical dispersion relation. This may be because of an enhanced near-surface current or because of the relative increase of wave energy that is phase-locked to longer steep gravity waves.
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      Observation of Short Wind Waves in Coastal Waters

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4166065
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    contributor authorHara, Tetsu
    contributor authorBock, Erik J.
    contributor authorEdson, James B.
    contributor authorMcGillis, Wade R.
    date accessioned2017-06-09T14:53:05Z
    date available2017-06-09T14:53:05Z
    date copyright1998/07/01
    date issued1998
    identifier issn0022-3670
    identifier otherams-28899.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4166065
    description abstractObservations of wind-generated gravity?capillary waves have been made during two recent field programs in coastal environments. The results of wave slope spectra on clean water show a well-defined correlation with the wind friction velocity. However, spectral values at higher wavenumbers (above 200 rad m?1) are significantly higher than previous laboratory results. In the presence of surface films wave spectra may decrease by more than one order of magnitude at lower wind stresses. The dispersion characteristics of short waves vary markedly depending on the wavenumber, the wind stress, and the surface chemical condition. Some results in the presence of surface films at intermediate winds show much higher apparent phase speeds than the theoretical dispersion relation. This may be because of an enhanced near-surface current or because of the relative increase of wave energy that is phase-locked to longer steep gravity waves.
    publisherAmerican Meteorological Society
    titleObservation of Short Wind Waves in Coastal Waters
    typeJournal Paper
    journal volume28
    journal issue7
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1998)028<1425:OOSWWI>2.0.CO;2
    journal fristpage1425
    journal lastpage1438
    treeJournal of Physical Oceanography:;1998:;Volume( 028 ):;issue: 007
    contenttypeFulltext
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