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    Spectral Energy Dissipation due to Surface Wave Breaking

    Source: Journal of Physical Oceanography:;2012:;Volume( 042 ):;issue: 009::page 1421
    Author:
    Romero, Leonel
    ,
    Melville, W. Kendall
    ,
    Kleiss, Jessica M.
    DOI: 10.1175/JPO-D-11-072.1
    Publisher: American Meteorological Society
    Abstract: semiempirical determination of the spectral dependence of the energy dissipation due to surface wave breaking is presented and then used to propose a model for the spectral dependence of the breaking strength parameter b, defined in the O. M. Phillips?s statistical formulation of wave breaking dynamics. The determination of the spectral dissipation is based on closing the radiative transport equation for fetch-limited waves, measured in the Gulf of Tehuantepec Experiment, by using the measured evolution of the directional spectra with fetch, computations of the four-wave resonant interactions, and three models of the wind input source function. The spectral dependence of the breaking strength is determined from the Kleiss and Melville measurements of the breaking statistics and the semiempirical spectral energy dissipation, resulting in b = b(k, cp/u*), where k is the wavenumber and the parametric dependence is on the wave age, cp/u*. Guided by these semiempirical results, a model for b(k, cp/u*) is proposed that uses laboratory data from a variety of sources, which can be represented by b = a(S ? S0)n, where S is a measure of the wave slope at breaking, a is a constant, S0 is a threshold slope for breaking, and 2.5 < n < 3 is a power law consistent with inertial wave dissipation scaling and laboratory measurements. The relationship between b(S) in the laboratory and b(k) in the field is based on the relationship between the saturation and mean square slope of the wave field. The results are discussed in the context of wind wave modeling and improved measurements of breaking in the field.
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      Spectral Energy Dissipation due to Surface Wave Breaking

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    contributor authorRomero, Leonel
    contributor authorMelville, W. Kendall
    contributor authorKleiss, Jessica M.
    date accessioned2017-06-09T17:19:23Z
    date available2017-06-09T17:19:23Z
    date copyright2012/09/01
    date issued2012
    identifier issn0022-3670
    identifier otherams-83163.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4226358
    description abstractsemiempirical determination of the spectral dependence of the energy dissipation due to surface wave breaking is presented and then used to propose a model for the spectral dependence of the breaking strength parameter b, defined in the O. M. Phillips?s statistical formulation of wave breaking dynamics. The determination of the spectral dissipation is based on closing the radiative transport equation for fetch-limited waves, measured in the Gulf of Tehuantepec Experiment, by using the measured evolution of the directional spectra with fetch, computations of the four-wave resonant interactions, and three models of the wind input source function. The spectral dependence of the breaking strength is determined from the Kleiss and Melville measurements of the breaking statistics and the semiempirical spectral energy dissipation, resulting in b = b(k, cp/u*), where k is the wavenumber and the parametric dependence is on the wave age, cp/u*. Guided by these semiempirical results, a model for b(k, cp/u*) is proposed that uses laboratory data from a variety of sources, which can be represented by b = a(S ? S0)n, where S is a measure of the wave slope at breaking, a is a constant, S0 is a threshold slope for breaking, and 2.5 < n < 3 is a power law consistent with inertial wave dissipation scaling and laboratory measurements. The relationship between b(S) in the laboratory and b(k) in the field is based on the relationship between the saturation and mean square slope of the wave field. The results are discussed in the context of wind wave modeling and improved measurements of breaking in the field.
    publisherAmerican Meteorological Society
    titleSpectral Energy Dissipation due to Surface Wave Breaking
    typeJournal Paper
    journal volume42
    journal issue9
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/JPO-D-11-072.1
    journal fristpage1421
    journal lastpage1444
    treeJournal of Physical Oceanography:;2012:;Volume( 042 ):;issue: 009
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian