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    The Formation of Polar Stratospheric Clouds

    Source: Journal of the Atmospheric Sciences:;1983:;Volume( 040 ):;issue: 008::page 2055
    Author:
    Steele, H. M.
    ,
    Hamill, Patrick
    ,
    McCormick, M. P.
    ,
    Swissler, T. J.
    DOI: 10.1175/1520-0469(1983)040<2055:TFOPSC>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Measurements of the stratospheric aerosol by SAM II during the northern and southern winters of 1979 showed a pronounced increase in extinction on occasions when the temperature fell to a low value (below 200 K). In this paper we evaluate, from thermodynamic considerations, the correlation between extinction and temperature. As the temperature fails, the hygroscopic aerosols absorb water vapor from the atmosphere, growing as they do so. The effect of the temperature on the size distribution and composition of the aerosol is determined, and the optical extinction at 1 ?m wavelength is calculated using Mie scattering theory. The theoretical predictions of the change in extinction with temperature and humidity am compared with the SAM II results at 100 mb, and the water vapor mixing ratio and aerosol number density are inferred from these results. A best fit of the theoretical curves to the SAM II data gives a water vapor content of 5?6 ppmv, and a total particle number density of 6?7 particles cm?3.
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      The Formation of Polar Stratospheric Clouds

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4154663
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    contributor authorSteele, H. M.
    contributor authorHamill, Patrick
    contributor authorMcCormick, M. P.
    contributor authorSwissler, T. J.
    date accessioned2017-06-09T14:24:06Z
    date available2017-06-09T14:24:06Z
    date copyright1983/08/01
    date issued1983
    identifier issn0022-4928
    identifier otherams-18636.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4154663
    description abstractMeasurements of the stratospheric aerosol by SAM II during the northern and southern winters of 1979 showed a pronounced increase in extinction on occasions when the temperature fell to a low value (below 200 K). In this paper we evaluate, from thermodynamic considerations, the correlation between extinction and temperature. As the temperature fails, the hygroscopic aerosols absorb water vapor from the atmosphere, growing as they do so. The effect of the temperature on the size distribution and composition of the aerosol is determined, and the optical extinction at 1 ?m wavelength is calculated using Mie scattering theory. The theoretical predictions of the change in extinction with temperature and humidity am compared with the SAM II results at 100 mb, and the water vapor mixing ratio and aerosol number density are inferred from these results. A best fit of the theoretical curves to the SAM II data gives a water vapor content of 5?6 ppmv, and a total particle number density of 6?7 particles cm?3.
    publisherAmerican Meteorological Society
    titleThe Formation of Polar Stratospheric Clouds
    typeJournal Paper
    journal volume40
    journal issue8
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/1520-0469(1983)040<2055:TFOPSC>2.0.CO;2
    journal fristpage2055
    journal lastpage2068
    treeJournal of the Atmospheric Sciences:;1983:;Volume( 040 ):;issue: 008
    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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