YaBeSH Engineering and Technology Library

    • Journals
    • PaperQuest
    • YSE Standards
    • YaBeSH
    • Login
    View Item 
    •   YE&T Library
    • AMS
    • Monthly Weather Review
    • View Item
    •   YE&T Library
    • AMS
    • Monthly Weather Review
    • View Item
    • All Fields
    • Source Title
    • Year
    • Publisher
    • Title
    • Subject
    • Author
    • DOI
    • ISBN
    Advanced Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Archive

    Evolution of the Kinematic Structure and Precipitation Characteristics of a Mesoscale Convective System on 20,May 1979

    Source: Monthly Weather Review:;1988:;volume( 116 ):;issue: 008::page 1555
    Author:
    Watson, Andrew I.
    ,
    Meitín, JoséG.
    ,
    Cunning, John B.
    DOI: 10.1175/1520-0493(1988)116<1555:EOTKSA>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: The relationship of vertical motion to the occurrence of precipitation from the convective and stratiform regions of a mesoscale convective system (MCS) is presented. On 20?21 May 1979, an MCS developed over portions of Oklahoma, Texas, and Arkansas. The uniqueness of this system was its lack of squall-line characteristics and development of a large stratiform precipitation region. The evolution of the system is detailed by rawinsonde observations, radar cross sections, 15-min composite analyses of six NWS WSR-57 radars, and by raingages. The genesis stage of the MCS was described by strong convection along an east-west cold front that was reinforced by outflow generated by two mesoscale convective complexes (MCCS) that formed tile night before in Kansas and Missouri. The mature stage of the MCS was characterized by the development of a large stratiform precipitation region while convection was limited to the southern and eastern flanks of the system. Finally, in the dissipative stage, a moderate north-south squall line that developed over west Texas in the afternoon moved rapidly to the cast apparently associated with a short-wave aloft and appeared to sweep the entire system out of Oklahoma. A modified Cheng and Houze technique is applied to the radar composites to determine stratiform and convective regions utilizing temporal as well as areas considerations. For the system as a whole, the stratiform region generated 30?50% of the total precipitation. The vertical-motion profiles hold the key to the precipitation characteristics over the storm-scale network. The genesis period was characterized by a strongly convective profile. As the system matured, low-level upward motion cased, while middle-level upward motion was sustained. A large area of stratiform rain developed as the deep convection weakened. Water-budget considerations suggest that the stratiform region was maintained by a combination of mesoscale middle-level updraft and by horizontal transfer of convective debris.
    • Download: (1.478Mb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      Evolution of the Kinematic Structure and Precipitation Characteristics of a Mesoscale Convective System on 20,May 1979

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4202041
    Collections
    • Monthly Weather Review

    Show full item record

    contributor authorWatson, Andrew I.
    contributor authorMeitín, JoséG.
    contributor authorCunning, John B.
    date accessioned2017-06-09T16:06:56Z
    date available2017-06-09T16:06:56Z
    date copyright1988/08/01
    date issued1988
    identifier issn0027-0644
    identifier otherams-61278.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4202041
    description abstractThe relationship of vertical motion to the occurrence of precipitation from the convective and stratiform regions of a mesoscale convective system (MCS) is presented. On 20?21 May 1979, an MCS developed over portions of Oklahoma, Texas, and Arkansas. The uniqueness of this system was its lack of squall-line characteristics and development of a large stratiform precipitation region. The evolution of the system is detailed by rawinsonde observations, radar cross sections, 15-min composite analyses of six NWS WSR-57 radars, and by raingages. The genesis stage of the MCS was described by strong convection along an east-west cold front that was reinforced by outflow generated by two mesoscale convective complexes (MCCS) that formed tile night before in Kansas and Missouri. The mature stage of the MCS was characterized by the development of a large stratiform precipitation region while convection was limited to the southern and eastern flanks of the system. Finally, in the dissipative stage, a moderate north-south squall line that developed over west Texas in the afternoon moved rapidly to the cast apparently associated with a short-wave aloft and appeared to sweep the entire system out of Oklahoma. A modified Cheng and Houze technique is applied to the radar composites to determine stratiform and convective regions utilizing temporal as well as areas considerations. For the system as a whole, the stratiform region generated 30?50% of the total precipitation. The vertical-motion profiles hold the key to the precipitation characteristics over the storm-scale network. The genesis period was characterized by a strongly convective profile. As the system matured, low-level upward motion cased, while middle-level upward motion was sustained. A large area of stratiform rain developed as the deep convection weakened. Water-budget considerations suggest that the stratiform region was maintained by a combination of mesoscale middle-level updraft and by horizontal transfer of convective debris.
    publisherAmerican Meteorological Society
    titleEvolution of the Kinematic Structure and Precipitation Characteristics of a Mesoscale Convective System on 20,May 1979
    typeJournal Paper
    journal volume116
    journal issue8
    journal titleMonthly Weather Review
    identifier doi10.1175/1520-0493(1988)116<1555:EOTKSA>2.0.CO;2
    journal fristpage1555
    journal lastpage1567
    treeMonthly Weather Review:;1988:;volume( 116 ):;issue: 008
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian
     
    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian