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    The 2015 Plains Elevated Convection at Night Field Project

    Source: Bulletin of the American Meteorological Society:;2016:;volume( 098 ):;issue: 004::page 767
    Author:
    Geerts, Bart
    ,
    Parsons, David
    ,
    Ziegler, Conrad L.
    ,
    Weckwerth, Tammy M.
    ,
    Biggerstaff, Michael I.
    ,
    Clark, Richard D.
    ,
    Coniglio, Michael C.
    ,
    Demoz, Belay B.
    ,
    Ferrare, Richard A.
    ,
    Gallus, William A.
    ,
    Haghi, Kevin
    ,
    Hanesiak, John M.
    ,
    Klein, Petra M.
    ,
    Knupp, Kevin R.
    ,
    Kosiba, Karen
    ,
    McFarquhar, Greg M.
    ,
    Moore, James A.
    ,
    Nehrir, Amin R.
    ,
    Parker, Matthew D.
    ,
    Pinto, James O.
    ,
    Rauber, Robert M.
    ,
    Schumacher, Russ S.
    ,
    Turner, David D.
    ,
    Wang, Qing
    ,
    Wang, Xuguang
    ,
    Wang, Zhien
    ,
    Wurman, Joshua
    DOI: 10.1175/BAMS-D-15-00257.1
    Publisher: American Meteorological Society
    Abstract: he central Great Plains region in North America has a nocturnal maximum in warm-season precipitation. Much of this precipitation comes from organized mesoscale convective systems (MCSs). This nocturnal maximum is counterintuitive in the sense that convective activity over the Great Plains is out of phase with the local generation of CAPE by solar heating of the surface. The lower troposphere in this nocturnal environment is typically characterized by a low-level jet (LLJ) just above a stable boundary layer (SBL), and convective available potential energy (CAPE) values that peak above the SBL, resulting in convection that may be elevated, with source air decoupled from the surface. Nocturnal MCS-induced cold pools often trigger undular bores and solitary waves within the SBL. A full understanding of the nocturnal precipitation maximum remains elusive, although it appears that bore-induced lifting and the LLJ may be instrumental to convection initiation and the maintenance of MCSs at night.To gain insight into nocturnal MCSs, their essential ingredients, and paths toward improving the relatively poor predictive skill of nocturnal convection in weather and climate models, a large, multiagency field campaign called Plains Elevated Convection At Night (PECAN) was conducted in 2015. PECAN employed three research aircraft, an unprecedented coordinated array of nine mobile scanning radars, a fixed S-band radar, a unique mesoscale network of lower-tropospheric profiling systems called the PECAN Integrated Sounding Array (PISA), and numerous mobile-mesonet surface weather stations. The rich PECAN dataset is expected to improve our understanding and prediction of continental nocturnal warm-season precipitation. This article provides a summary of the PECAN field experiment and preliminary findings.
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      The 2015 Plains Elevated Convection at Night Field Project

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4215947
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    contributor authorGeerts, Bart
    contributor authorParsons, David
    contributor authorZiegler, Conrad L.
    contributor authorWeckwerth, Tammy M.
    contributor authorBiggerstaff, Michael I.
    contributor authorClark, Richard D.
    contributor authorConiglio, Michael C.
    contributor authorDemoz, Belay B.
    contributor authorFerrare, Richard A.
    contributor authorGallus, William A.
    contributor authorHaghi, Kevin
    contributor authorHanesiak, John M.
    contributor authorKlein, Petra M.
    contributor authorKnupp, Kevin R.
    contributor authorKosiba, Karen
    contributor authorMcFarquhar, Greg M.
    contributor authorMoore, James A.
    contributor authorNehrir, Amin R.
    contributor authorParker, Matthew D.
    contributor authorPinto, James O.
    contributor authorRauber, Robert M.
    contributor authorSchumacher, Russ S.
    contributor authorTurner, David D.
    contributor authorWang, Qing
    contributor authorWang, Xuguang
    contributor authorWang, Zhien
    contributor authorWurman, Joshua
    date accessioned2017-06-09T16:46:17Z
    date available2017-06-09T16:46:17Z
    date copyright2017/04/01
    date issued2016
    identifier issn0003-0007
    identifier otherams-73794.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4215947
    description abstracthe central Great Plains region in North America has a nocturnal maximum in warm-season precipitation. Much of this precipitation comes from organized mesoscale convective systems (MCSs). This nocturnal maximum is counterintuitive in the sense that convective activity over the Great Plains is out of phase with the local generation of CAPE by solar heating of the surface. The lower troposphere in this nocturnal environment is typically characterized by a low-level jet (LLJ) just above a stable boundary layer (SBL), and convective available potential energy (CAPE) values that peak above the SBL, resulting in convection that may be elevated, with source air decoupled from the surface. Nocturnal MCS-induced cold pools often trigger undular bores and solitary waves within the SBL. A full understanding of the nocturnal precipitation maximum remains elusive, although it appears that bore-induced lifting and the LLJ may be instrumental to convection initiation and the maintenance of MCSs at night.To gain insight into nocturnal MCSs, their essential ingredients, and paths toward improving the relatively poor predictive skill of nocturnal convection in weather and climate models, a large, multiagency field campaign called Plains Elevated Convection At Night (PECAN) was conducted in 2015. PECAN employed three research aircraft, an unprecedented coordinated array of nine mobile scanning radars, a fixed S-band radar, a unique mesoscale network of lower-tropospheric profiling systems called the PECAN Integrated Sounding Array (PISA), and numerous mobile-mesonet surface weather stations. The rich PECAN dataset is expected to improve our understanding and prediction of continental nocturnal warm-season precipitation. This article provides a summary of the PECAN field experiment and preliminary findings.
    publisherAmerican Meteorological Society
    titleThe 2015 Plains Elevated Convection at Night Field Project
    typeJournal Paper
    journal volume98
    journal issue4
    journal titleBulletin of the American Meteorological Society
    identifier doi10.1175/BAMS-D-15-00257.1
    journal fristpage767
    journal lastpage786
    treeBulletin of the American Meteorological Society:;2016:;volume( 098 ):;issue: 004
    contenttypeFulltext
    DSpace software copyright © 2002-2015  DuraSpace
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    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