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    In Situ Observations of Cirrus Cloud Microphysical Properties Using the Counterflow Virtual Impactor

    Source: Journal of Atmospheric and Oceanic Technology:;1993:;volume( 010 ):;issue: 003::page 294
    Author:
    Noone, K. B.
    ,
    Noone, K. J.
    ,
    Heintzenberg, J.
    ,
    Ström, J.
    ,
    Ogren, J. A.
    DOI: 10.1175/1520-0426(1993)010<0294:ISOOCC>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: This study presents a new technique for making in situ measurements of cirrus cloud microphysical properties. Sampling of cirrus clouds was performed using a counterflow virtual impactor (CVI). The CVI was used to sample cloud elements larger than 4 µm in aerodynamic diameter. In conjunction with a Lyman-α hygrometer, this gave a direct measurement of the condensed water content. Sampling the cloud elements with the CVI also allowed the authors to examine the size distribution of the residual particles produced by evaporation of the cloud elements. This study discusses and evaluates the CVI technique for use in sampling cirrus clouds, especially for sampling small cloud elements. Measurements of condensed water content and cloud-element (crystal and droplet) concentrations for cirrus uncinus, floccus, and cirrostratus clouds made using the CVI during the International Cirrus Experiment experiment are presented. Examples of size distributions of the residual aerosol particles from cirrus cloud elements are also presented.
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      In Situ Observations of Cirrus Cloud Microphysical Properties Using the Counterflow Virtual Impactor

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4223289
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    • Journal of Atmospheric and Oceanic Technology

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    contributor authorNoone, K. B.
    contributor authorNoone, K. J.
    contributor authorHeintzenberg, J.
    contributor authorStröm, J.
    contributor authorOgren, J. A.
    date accessioned2017-06-09T17:09:52Z
    date available2017-06-09T17:09:52Z
    date copyright1993/06/01
    date issued1993
    identifier issn0739-0572
    identifier otherams-804.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4223289
    description abstractThis study presents a new technique for making in situ measurements of cirrus cloud microphysical properties. Sampling of cirrus clouds was performed using a counterflow virtual impactor (CVI). The CVI was used to sample cloud elements larger than 4 µm in aerodynamic diameter. In conjunction with a Lyman-α hygrometer, this gave a direct measurement of the condensed water content. Sampling the cloud elements with the CVI also allowed the authors to examine the size distribution of the residual particles produced by evaporation of the cloud elements. This study discusses and evaluates the CVI technique for use in sampling cirrus clouds, especially for sampling small cloud elements. Measurements of condensed water content and cloud-element (crystal and droplet) concentrations for cirrus uncinus, floccus, and cirrostratus clouds made using the CVI during the International Cirrus Experiment experiment are presented. Examples of size distributions of the residual aerosol particles from cirrus cloud elements are also presented.
    publisherAmerican Meteorological Society
    titleIn Situ Observations of Cirrus Cloud Microphysical Properties Using the Counterflow Virtual Impactor
    typeJournal Paper
    journal volume10
    journal issue3
    journal titleJournal of Atmospheric and Oceanic Technology
    identifier doi10.1175/1520-0426(1993)010<0294:ISOOCC>2.0.CO;2
    journal fristpage294
    journal lastpage303
    treeJournal of Atmospheric and Oceanic Technology:;1993:;volume( 010 ):;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