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    Baroclinic Instability at Short Wavelengths in Vertically Discrete Quasi-Geostrophic and Ageostrophic Models

    Source: Journal of the Atmospheric Sciences:;1988:;Volume( 045 ):;issue: 021::page 3305
    Author:
    Staley, D. O.
    DOI: 10.1175/1520-0469(1988)045<3305:BIASWI>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Short wavelength linear baroclinic instability is examined numerically in two quasi-geostrophic models and one ageostrophic model. The growth rate spectra for the ageostrophic model differ little from those of the quasi-geostrophic models in three cases with different arrangements of shear and static stability. In all models and cases, and for 26 vertical levels, peaks of instability were found at very short wavelengths of a few hundred kilometers. These apparently represent spurious critical layer instability appearing at discrete levels, as suggested by Arakawa. They disappear when very high vertical resolution (e.g., 150 levels) is used.
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      Baroclinic Instability at Short Wavelengths in Vertically Discrete Quasi-Geostrophic and Ageostrophic Models

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4156098
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    contributor authorStaley, D. O.
    date accessioned2017-06-09T14:28:31Z
    date available2017-06-09T14:28:31Z
    date copyright1988/11/01
    date issued1988
    identifier issn0022-4928
    identifier otherams-19928.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4156098
    description abstractShort wavelength linear baroclinic instability is examined numerically in two quasi-geostrophic models and one ageostrophic model. The growth rate spectra for the ageostrophic model differ little from those of the quasi-geostrophic models in three cases with different arrangements of shear and static stability. In all models and cases, and for 26 vertical levels, peaks of instability were found at very short wavelengths of a few hundred kilometers. These apparently represent spurious critical layer instability appearing at discrete levels, as suggested by Arakawa. They disappear when very high vertical resolution (e.g., 150 levels) is used.
    publisherAmerican Meteorological Society
    titleBaroclinic Instability at Short Wavelengths in Vertically Discrete Quasi-Geostrophic and Ageostrophic Models
    typeJournal Paper
    journal volume45
    journal issue21
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/1520-0469(1988)045<3305:BIASWI>2.0.CO;2
    journal fristpage3305
    journal lastpage3310
    treeJournal of the Atmospheric Sciences:;1988:;Volume( 045 ):;issue: 021
    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