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    Energy Transmission by Barotropic Rossby Waves across Large-Scale Topography

    Source: Journal of Physical Oceanography:;1984:;Volume( 014 ):;issue: 002::page 438
    Author:
    Barnier, Bernard
    DOI: 10.1175/1520-0485(1984)014<0438:ETBBRW>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: An analytical study investigates the energy transmission by free, barotropic, linear Rossby waves across a large scale bottom topography when topographic and beta-effects have the same order of magnitude. In open ocean regions which are not characterized by a flat bottom, the change in topography is assumed to occur in only one direction and is described by exponential depth profiles. The solution expressed as a plane-wave streamfunction has a nondivergent energy flux vector. An energy transmission coefficient, which represents the fraction of energy that an incident wave can carry across the topography, is defined as the ratio of the upslope component of the energy flux vector in the transmission region to the one in the incident region. The evaluation of the energy transmission coefficient for a ridge similar to the Mid-Atlantic Ridge shows that the low-frequency waves (of period larger than one week) are strongly reflected and that the ridge acts like a barrier which separates the ocean in two basins with independent low-frequency characteristics.
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      Energy Transmission by Barotropic Rossby Waves across Large-Scale Topography

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4163580
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    contributor authorBarnier, Bernard
    date accessioned2017-06-09T14:46:59Z
    date available2017-06-09T14:46:59Z
    date copyright1984/02/01
    date issued1984
    identifier issn0022-3670
    identifier otherams-26661.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4163580
    description abstractAn analytical study investigates the energy transmission by free, barotropic, linear Rossby waves across a large scale bottom topography when topographic and beta-effects have the same order of magnitude. In open ocean regions which are not characterized by a flat bottom, the change in topography is assumed to occur in only one direction and is described by exponential depth profiles. The solution expressed as a plane-wave streamfunction has a nondivergent energy flux vector. An energy transmission coefficient, which represents the fraction of energy that an incident wave can carry across the topography, is defined as the ratio of the upslope component of the energy flux vector in the transmission region to the one in the incident region. The evaluation of the energy transmission coefficient for a ridge similar to the Mid-Atlantic Ridge shows that the low-frequency waves (of period larger than one week) are strongly reflected and that the ridge acts like a barrier which separates the ocean in two basins with independent low-frequency characteristics.
    publisherAmerican Meteorological Society
    titleEnergy Transmission by Barotropic Rossby Waves across Large-Scale Topography
    typeJournal Paper
    journal volume14
    journal issue2
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1984)014<0438:ETBBRW>2.0.CO;2
    journal fristpage438
    journal lastpage447
    treeJournal of Physical Oceanography:;1984:;Volume( 014 ):;issue: 002
    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
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