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

    Lagrangian Study of Tropical Instability Vortices in the Atlantic

    Source: Journal of Physical Oceanography:;2008:;Volume( 038 ):;issue: 002::page 400
    Author:
    Dutrieux, Pierre
    ,
    Menkes, Christophe E.
    ,
    Vialard, Jerome
    ,
    Flament, Pierre
    ,
    Blanke, Bruno
    DOI: 10.1175/2007JPO3763.1
    Publisher: American Meteorological Society
    Abstract: Tropical instability waves and tropical instability vortices (TIVs) exert major controls on ocean dynamics, thermodynamics, and biology on intraseasonal to seasonal time scales. To understand the fundamental mechanisms at play, a Lagrangian analysis of the 3D circulation of westward-propagating TIVs was performed in a high-resolution Atlantic Ocean simulation. The model reproduces the main temperature and velocity features of the tropical Atlantic mean state and the TIVs. Lagrangian diagnostics were used to track the water masses transported in vortices and exchanged with surrounding waters. The 3D circulation within vortices is consistent with previous observations and dominated by anticyclonic rotation with downwelling and upwelling near the leading and trailing edges of the vortex, respectively. This convergent flow creates sharp gradients at the TIV southwestern edge, where vertical mixing is most efficient. While TIVs remain highly dynamically coherent throughout their lifetime, significant exchanges occur with their surroundings, with 50% of their water being renewed over one rotation cycle. A detailed investigation of the eddies? sources and sinks reveals that they mostly transport southern water zonally, while northern waters are mostly passing through or fluxed southward in their lee. A notable source of entrained water is the Equatorial Undercurrent.
    • Download: (2.843Mb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Lagrangian Study of Tropical Instability Vortices in the Atlantic

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4207315
    Collections
    • Journal of Physical Oceanography

    Show full item record

    contributor authorDutrieux, Pierre
    contributor authorMenkes, Christophe E.
    contributor authorVialard, Jerome
    contributor authorFlament, Pierre
    contributor authorBlanke, Bruno
    date accessioned2017-06-09T16:20:17Z
    date available2017-06-09T16:20:17Z
    date copyright2008/02/01
    date issued2008
    identifier issn0022-3670
    identifier otherams-66024.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4207315
    description abstractTropical instability waves and tropical instability vortices (TIVs) exert major controls on ocean dynamics, thermodynamics, and biology on intraseasonal to seasonal time scales. To understand the fundamental mechanisms at play, a Lagrangian analysis of the 3D circulation of westward-propagating TIVs was performed in a high-resolution Atlantic Ocean simulation. The model reproduces the main temperature and velocity features of the tropical Atlantic mean state and the TIVs. Lagrangian diagnostics were used to track the water masses transported in vortices and exchanged with surrounding waters. The 3D circulation within vortices is consistent with previous observations and dominated by anticyclonic rotation with downwelling and upwelling near the leading and trailing edges of the vortex, respectively. This convergent flow creates sharp gradients at the TIV southwestern edge, where vertical mixing is most efficient. While TIVs remain highly dynamically coherent throughout their lifetime, significant exchanges occur with their surroundings, with 50% of their water being renewed over one rotation cycle. A detailed investigation of the eddies? sources and sinks reveals that they mostly transport southern water zonally, while northern waters are mostly passing through or fluxed southward in their lee. A notable source of entrained water is the Equatorial Undercurrent.
    publisherAmerican Meteorological Society
    titleLagrangian Study of Tropical Instability Vortices in the Atlantic
    typeJournal Paper
    journal volume38
    journal issue2
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/2007JPO3763.1
    journal fristpage400
    journal lastpage417
    treeJournal of Physical Oceanography:;2008:;Volume( 038 ):;issue: 002
    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