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    Characterization of Hydrometeors in Sahelian Convective Systems with an X-Band Radar and Comparison with In Situ Measurements. Part II: A Simple Brightband Method to Infer the Density of Icy Hydrometeors

    Source: Journal of Applied Meteorology and Climatology:;2015:;volume( 055 ):;issue: 002::page 251
    Author:
    Alcoba, M.
    ,
    Gosset, M.
    ,
    Kacou, M.
    ,
    Cazenave, F.
    ,
    Fontaine, E.
    DOI: 10.1175/JAMC-D-15-0014.1
    Publisher: American Meteorological Society
    Abstract: simple scheme that is based on the shape and intensity of the radar bright band is used to infer the density of hydrometeors just above the freezing level in Sahelian mesoscale convective systems (MCS). Four MCS jointly observed by a ground-based X-band radar and by an instrumented aircraft as part of the Megha-Tropiques algorithm-validation campaign during August 2010 in Niamey, Niger, are analyzed. The instrumented aircraft (with a 94-GHz radar and various optical probes on board) provided mass?diameter laws for the particles sampled during the flights. The mass?diameter laws derived from the ground-radar vertical profile of reflectivity (VPR) for each flight are compared with those derived from the airborne measurements. The density laws derived by both methods are consistent and encourage further use of the simple VPR scheme to quantify hydrometeor density laws and their variability for various analyses (microphysical processes and icy-hydrometeor scattering and radiative properties).
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      Characterization of Hydrometeors in Sahelian Convective Systems with an X-Band Radar and Comparison with In Situ Measurements. Part II: A Simple Brightband Method to Infer the Density of Icy Hydrometeors

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    contributor authorAlcoba, M.
    contributor authorGosset, M.
    contributor authorKacou, M.
    contributor authorCazenave, F.
    contributor authorFontaine, E.
    date accessioned2017-06-09T16:50:45Z
    date available2017-06-09T16:50:45Z
    date copyright2016/02/01
    date issued2015
    identifier issn1558-8424
    identifier otherams-75179.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4217486
    description abstractsimple scheme that is based on the shape and intensity of the radar bright band is used to infer the density of hydrometeors just above the freezing level in Sahelian mesoscale convective systems (MCS). Four MCS jointly observed by a ground-based X-band radar and by an instrumented aircraft as part of the Megha-Tropiques algorithm-validation campaign during August 2010 in Niamey, Niger, are analyzed. The instrumented aircraft (with a 94-GHz radar and various optical probes on board) provided mass?diameter laws for the particles sampled during the flights. The mass?diameter laws derived from the ground-radar vertical profile of reflectivity (VPR) for each flight are compared with those derived from the airborne measurements. The density laws derived by both methods are consistent and encourage further use of the simple VPR scheme to quantify hydrometeor density laws and their variability for various analyses (microphysical processes and icy-hydrometeor scattering and radiative properties).
    publisherAmerican Meteorological Society
    titleCharacterization of Hydrometeors in Sahelian Convective Systems with an X-Band Radar and Comparison with In Situ Measurements. Part II: A Simple Brightband Method to Infer the Density of Icy Hydrometeors
    typeJournal Paper
    journal volume55
    journal issue2
    journal titleJournal of Applied Meteorology and Climatology
    identifier doi10.1175/JAMC-D-15-0014.1
    journal fristpage251
    journal lastpage263
    treeJournal of Applied Meteorology and Climatology:;2015:;volume( 055 ):;issue: 002
    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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