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    A Case Study of the Origin of Hail in a Multicell Thunderstorm Using In Situ Aircraft and Polarimetric Radar Data

    Source: Journal of Applied Meteorology:;2003:;volume( 042 ):;issue: 011::page 1679
    Author:
    Kennedy, Patrick C.
    ,
    Detwiler, Andrew G.
    DOI: 10.1175/1520-0450(2003)042<1679:ACSOTO>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: An armored T-28 research aircraft made direct observations of the hydrometeors present at approximately the ?3°C temperature level in the inflow region of a multicell thunderstorm. During the penetration, both the Colorado State University (CSU)?University of Chicago and Illinois State Water Survey (CHILL) 11-cm-wavelength dual-polarization research radar and the Denver, Colorado, Front Range Airport (KFTG) Weather Surveillance Radar-1988 Doppler (WSR-88D) were scanning this storm. Polarimetric radar indications of hail (high reflectivity and low differential reflectivity) appeared near the surface in the echo core adjacent to the aircraft track approximately 6 min after the T-28's inflow transit. Radial velocity data from the KFTG radar were combined with those recorded at CSU?CHILL to synthesize the airflow fields in the storm around the time of the T-28 penetration. Hail trajectories were initiated from a location at which the T-28 encountered a burst of approximately 1-cm-diameter, low-density graupel particles within the general storm inflow region. Forward-time trajectory calculations indicated that these graupel particles subsequently grew slightly into small hailstones and ended up within a few kilometers of the near-surface polarimetric radar hail-signature location. Trajectories computed backward in time imply that these hail embryos originated aloft in the forward portion of the echo complex. These are the first quantitative, direct in situ observations of recirculating precipitation becoming embryos for hail development.
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      A Case Study of the Origin of Hail in a Multicell Thunderstorm Using In Situ Aircraft and Polarimetric Radar Data

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4148751
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    contributor authorKennedy, Patrick C.
    contributor authorDetwiler, Andrew G.
    date accessioned2017-06-09T14:08:59Z
    date available2017-06-09T14:08:59Z
    date copyright2003/11/01
    date issued2003
    identifier issn0894-8763
    identifier otherams-13314.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4148751
    description abstractAn armored T-28 research aircraft made direct observations of the hydrometeors present at approximately the ?3°C temperature level in the inflow region of a multicell thunderstorm. During the penetration, both the Colorado State University (CSU)?University of Chicago and Illinois State Water Survey (CHILL) 11-cm-wavelength dual-polarization research radar and the Denver, Colorado, Front Range Airport (KFTG) Weather Surveillance Radar-1988 Doppler (WSR-88D) were scanning this storm. Polarimetric radar indications of hail (high reflectivity and low differential reflectivity) appeared near the surface in the echo core adjacent to the aircraft track approximately 6 min after the T-28's inflow transit. Radial velocity data from the KFTG radar were combined with those recorded at CSU?CHILL to synthesize the airflow fields in the storm around the time of the T-28 penetration. Hail trajectories were initiated from a location at which the T-28 encountered a burst of approximately 1-cm-diameter, low-density graupel particles within the general storm inflow region. Forward-time trajectory calculations indicated that these graupel particles subsequently grew slightly into small hailstones and ended up within a few kilometers of the near-surface polarimetric radar hail-signature location. Trajectories computed backward in time imply that these hail embryos originated aloft in the forward portion of the echo complex. These are the first quantitative, direct in situ observations of recirculating precipitation becoming embryos for hail development.
    publisherAmerican Meteorological Society
    titleA Case Study of the Origin of Hail in a Multicell Thunderstorm Using In Situ Aircraft and Polarimetric Radar Data
    typeJournal Paper
    journal volume42
    journal issue11
    journal titleJournal of Applied Meteorology
    identifier doi10.1175/1520-0450(2003)042<1679:ACSOTO>2.0.CO;2
    journal fristpage1679
    journal lastpage1690
    treeJournal of Applied Meteorology:;2003:;volume( 042 ):;issue: 011
    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