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    Lateral Circulation Generates Flood Tide Stratification and Estuarine Exchange Flow in a Curved Tidal Inlet

    Source: Journal of Physical Oceanography:;2014:;Volume( 045 ):;issue: 003::page 638
    Author:
    Becherer, Johannes
    ,
    Stacey, Mark T.
    ,
    Umlauf, Lars
    ,
    Burchard, Hans
    DOI: 10.1175/JPO-D-14-0001.1
    Publisher: American Meteorological Society
    Abstract: ross-channel transect measurements of microstructure and velocity in a well-mixed and curved tidal inlet in the German Wadden Sea show the occurrence of significant late flood stratification. This stratification is found to be a result of lateral straining. This study observes a strong single-cell lateral circulation, which is strongly pronounced at late flood and absent during most of ebb. This tidal asymmetry is caused by a systematic interplay between centrifugal forcing and the lateral baroclinic pressure gradient. During flood a positive feedback between the terms generates strong lateral circulation, whereas during ebb a negative feedback leads to a suppression of the cross-channel exchange. A theoretical framework based on vorticity is developed, which allows lateral and longitudinal circulation to be studied in a consistent way. With this framework it is possible to show that the tidal asymmetry of the lateral flow is a major driver of residual longitudinal estuarine circulation, here identified with the tidally averaged across-channel vorticity component.
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      Lateral Circulation Generates Flood Tide Stratification and Estuarine Exchange Flow in a Curved Tidal Inlet

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4226766
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    contributor authorBecherer, Johannes
    contributor authorStacey, Mark T.
    contributor authorUmlauf, Lars
    contributor authorBurchard, Hans
    date accessioned2017-06-09T17:20:38Z
    date available2017-06-09T17:20:38Z
    date copyright2015/03/01
    date issued2014
    identifier issn0022-3670
    identifier otherams-83531.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4226766
    description abstractross-channel transect measurements of microstructure and velocity in a well-mixed and curved tidal inlet in the German Wadden Sea show the occurrence of significant late flood stratification. This stratification is found to be a result of lateral straining. This study observes a strong single-cell lateral circulation, which is strongly pronounced at late flood and absent during most of ebb. This tidal asymmetry is caused by a systematic interplay between centrifugal forcing and the lateral baroclinic pressure gradient. During flood a positive feedback between the terms generates strong lateral circulation, whereas during ebb a negative feedback leads to a suppression of the cross-channel exchange. A theoretical framework based on vorticity is developed, which allows lateral and longitudinal circulation to be studied in a consistent way. With this framework it is possible to show that the tidal asymmetry of the lateral flow is a major driver of residual longitudinal estuarine circulation, here identified with the tidally averaged across-channel vorticity component.
    publisherAmerican Meteorological Society
    titleLateral Circulation Generates Flood Tide Stratification and Estuarine Exchange Flow in a Curved Tidal Inlet
    typeJournal Paper
    journal volume45
    journal issue3
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/JPO-D-14-0001.1
    journal fristpage638
    journal lastpage656
    treeJournal of Physical Oceanography:;2014:;Volume( 045 ):;issue: 003
    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