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    The Evolution of Balanced, Low-Mode Vortices on the β-Plane

    Source: Journal of Physical Oceanography:;1986:;Volume( 016 ):;issue: 005::page 838
    Author:
    Mcwilliams, James C.
    ,
    Gent, Peter R.
    ,
    Norton, Nancy J.
    DOI: 10.1175/1520-0485(1986)016<0838:TEOBLM>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Numerical solutions are examined for nearly axisymmetric geopotential monopole vortices whose vertical structure is essentially confined to the lowest few vertical modes. The vortex environment is a rotating, stratified fluid with spatially variable Coriolis frequency (the ?-plane). Solutions are examined with Rossby numbers in an order one range about zero, and therefore the balance equations are and appropriate model. Solutions From the quasi-geostrophic and primitive equations are also examined, and we find that the balance equations are much more accurate than the former and more efficient, both conceptually and computationally, than the latter. The central parameter regime is one of stable vortex propagation, accompanied by week Rossby wave radiation and slow changes in vortex shape, with the latter due more to the radiation than the weak dissipation. Various types of instability?baroclinic, barotropic, and inertial?act to delimit the stable regime for vortices.
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      The Evolution of Balanced, Low-Mode Vortices on the β-Plane

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4163958
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    contributor authorMcwilliams, James C.
    contributor authorGent, Peter R.
    contributor authorNorton, Nancy J.
    date accessioned2017-06-09T14:47:53Z
    date available2017-06-09T14:47:53Z
    date copyright1986/05/01
    date issued1986
    identifier issn0022-3670
    identifier otherams-27000.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4163958
    description abstractNumerical solutions are examined for nearly axisymmetric geopotential monopole vortices whose vertical structure is essentially confined to the lowest few vertical modes. The vortex environment is a rotating, stratified fluid with spatially variable Coriolis frequency (the ?-plane). Solutions are examined with Rossby numbers in an order one range about zero, and therefore the balance equations are and appropriate model. Solutions From the quasi-geostrophic and primitive equations are also examined, and we find that the balance equations are much more accurate than the former and more efficient, both conceptually and computationally, than the latter. The central parameter regime is one of stable vortex propagation, accompanied by week Rossby wave radiation and slow changes in vortex shape, with the latter due more to the radiation than the weak dissipation. Various types of instability?baroclinic, barotropic, and inertial?act to delimit the stable regime for vortices.
    publisherAmerican Meteorological Society
    titleThe Evolution of Balanced, Low-Mode Vortices on the β-Plane
    typeJournal Paper
    journal volume16
    journal issue5
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1986)016<0838:TEOBLM>2.0.CO;2
    journal fristpage838
    journal lastpage855
    treeJournal of Physical Oceanography:;1986:;Volume( 016 ):;issue: 005
    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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