YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • AMS
    • Journal of Physical Oceanography
    • View Item
    •   YE&T Library
    • AMS
    • Journal of Physical Oceanography
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    The Internal Seiches in Gullmar Fjord. Part I: Dynamics

    Source: Journal of Physical Oceanography:;2001:;Volume( 031 ):;issue: 009::page 2549
    Author:
    Arneborg, Lars
    ,
    Liljebladh, Bengt
    DOI: 10.1175/1520-0485(2001)031<2549:TISIGF>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Internal seiche motions with period 1?3 days in Gullmar Fjord are investigated based on mooring data with high vertical and time resolution. The period and structure of the internal seiches are well described by a simple analytical three-layer model taking into account blocking of the basin water at the sill. Energy budgets for forcing and damping of the seiches are estimated. The internal seiches are forced by direct wind stress on the surface and by internal coastal waves of frequency close to the seiches, the latter contribution being a little larger. The e-folding timescale for the internal seiche damping is approximately equal to the seiche periods, which means that the seiches are effectively damped, but also that the forcing must be in near resonance in order to maintain the observed seiche motions. In the basin water the seiches manifest themselves with large vertical motions and clear upward phase propagation. The phase propagation is related with a continuous, rather than strictly layered stratification, and can therefore not be described with the three-layer model. It is proposed that the downward energy radiation inherent in the upward phase propagation is caused by removal of energy in the basin water, probably due to dissipation after near-critical reflection from the sloping fjord bottom. The energy flux related to this process is only 2% of the total seiche damping, and therefore not important for the seiche dynamics, which are dominated by the pycnocline movements. In a companion paper, however, it is shown that this energy flux is an important contribution to the increase of potential energy in the basin water due to mixing.
    • Download: (613.4Kb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      The Internal Seiches in Gullmar Fjord. Part I: Dynamics

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4166752
    Collections
    • Journal of Physical Oceanography

    Show full item record

    contributor authorArneborg, Lars
    contributor authorLiljebladh, Bengt
    date accessioned2017-06-09T14:54:46Z
    date available2017-06-09T14:54:46Z
    date copyright2001/09/01
    date issued2001
    identifier issn0022-3670
    identifier otherams-29516.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4166752
    description abstractInternal seiche motions with period 1?3 days in Gullmar Fjord are investigated based on mooring data with high vertical and time resolution. The period and structure of the internal seiches are well described by a simple analytical three-layer model taking into account blocking of the basin water at the sill. Energy budgets for forcing and damping of the seiches are estimated. The internal seiches are forced by direct wind stress on the surface and by internal coastal waves of frequency close to the seiches, the latter contribution being a little larger. The e-folding timescale for the internal seiche damping is approximately equal to the seiche periods, which means that the seiches are effectively damped, but also that the forcing must be in near resonance in order to maintain the observed seiche motions. In the basin water the seiches manifest themselves with large vertical motions and clear upward phase propagation. The phase propagation is related with a continuous, rather than strictly layered stratification, and can therefore not be described with the three-layer model. It is proposed that the downward energy radiation inherent in the upward phase propagation is caused by removal of energy in the basin water, probably due to dissipation after near-critical reflection from the sloping fjord bottom. The energy flux related to this process is only 2% of the total seiche damping, and therefore not important for the seiche dynamics, which are dominated by the pycnocline movements. In a companion paper, however, it is shown that this energy flux is an important contribution to the increase of potential energy in the basin water due to mixing.
    publisherAmerican Meteorological Society
    titleThe Internal Seiches in Gullmar Fjord. Part I: Dynamics
    typeJournal Paper
    journal volume31
    journal issue9
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(2001)031<2549:TISIGF>2.0.CO;2
    journal fristpage2549
    journal lastpage2566
    treeJournal of Physical Oceanography:;2001:;Volume( 031 ):;issue: 009
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian