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    A Conceptual Model for the Identification of Active Red Sea Trough Synoptic Events over the Southeastern Mediterranean

    Source: Journal of Applied Meteorology and Climatology:;2012:;volume( 051 ):;issue: 005::page 962
    Author:
    Krichak, Simon O.
    ,
    Breitgand, Joseph S.
    ,
    Feldstein, Steven B.
    DOI: 10.1175/JAMC-D-11-0223.1
    Publisher: American Meteorological Society
    Abstract: phenomenon characterized by a tongue of low pressure extending northward from the southern Red Sea [Red Sea Trough (RST)] toward the eastern Mediterranean Sea (EM) is analyzed. In general, the RST is associated with hot and dry weather, resulting from east-southeasterly flows in the lower troposphere. In some cases, the RST is found to be accompanied by an upper-tropospheric trough extending from the north over the EM. Such conditions are associated with unstable stratification, favoring the development of mesoscale convective systems. This kind of RST has been defined as an ?active? RST (ARST). The ARST phenomenon represents a serious threat to human society in the northeastern Africa?southeastern Mediterranean region, being in some cases associated with devastating floods. In this study, a conceptual model of the ARST phenomenon is discussed, and then an algorithm for the identification of ARST events is presented. The identification algorithm has been applied to a multiyear NCEP?NCAR reanalysis data archive for both RST and ARST events. From the results of a composite analysis of several different atmospheric flow parameters associated with ARST events, the key features associated with ARST events are identified. The results from the analysis of the composite patterns support the suggestion that high amounts of moisture transported from tropical Africa in the form of an atmospheric river to the Red Sea?EM play a key role in determining the intensity of the ARST events.
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      A Conceptual Model for the Identification of Active Red Sea Trough Synoptic Events over the Southeastern Mediterranean

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4216850
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    contributor authorKrichak, Simon O.
    contributor authorBreitgand, Joseph S.
    contributor authorFeldstein, Steven B.
    date accessioned2017-06-09T16:48:50Z
    date available2017-06-09T16:48:50Z
    date copyright2012/05/01
    date issued2012
    identifier issn1558-8424
    identifier otherams-74606.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4216850
    description abstractphenomenon characterized by a tongue of low pressure extending northward from the southern Red Sea [Red Sea Trough (RST)] toward the eastern Mediterranean Sea (EM) is analyzed. In general, the RST is associated with hot and dry weather, resulting from east-southeasterly flows in the lower troposphere. In some cases, the RST is found to be accompanied by an upper-tropospheric trough extending from the north over the EM. Such conditions are associated with unstable stratification, favoring the development of mesoscale convective systems. This kind of RST has been defined as an ?active? RST (ARST). The ARST phenomenon represents a serious threat to human society in the northeastern Africa?southeastern Mediterranean region, being in some cases associated with devastating floods. In this study, a conceptual model of the ARST phenomenon is discussed, and then an algorithm for the identification of ARST events is presented. The identification algorithm has been applied to a multiyear NCEP?NCAR reanalysis data archive for both RST and ARST events. From the results of a composite analysis of several different atmospheric flow parameters associated with ARST events, the key features associated with ARST events are identified. The results from the analysis of the composite patterns support the suggestion that high amounts of moisture transported from tropical Africa in the form of an atmospheric river to the Red Sea?EM play a key role in determining the intensity of the ARST events.
    publisherAmerican Meteorological Society
    titleA Conceptual Model for the Identification of Active Red Sea Trough Synoptic Events over the Southeastern Mediterranean
    typeJournal Paper
    journal volume51
    journal issue5
    journal titleJournal of Applied Meteorology and Climatology
    identifier doi10.1175/JAMC-D-11-0223.1
    journal fristpage962
    journal lastpage971
    treeJournal of Applied Meteorology and Climatology:;2012:;volume( 051 ):;issue: 005
    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