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    On the Role of Successive Downstream Development in East Asian Polar Air Outbreaks

    Source: Monthly Weather Review:;1982:;volume( 110 ):;issue: 009::page 1224
    Author:
    Joung, Chang Hi
    ,
    Hitchman, Matthew H.
    DOI: 10.1175/1520-0493(1982)110<1224:OTROSD>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: A composite of 16 strong East Asian polar outbreak occurrences, widely separated in time, reveals a clear sequence of events: beginning over the western North Atlantic six or seven days in advance of the key day (as defined by the cold frontal passage over Korea) troughs and ridges are seen to form, develop and decay successively downstream of one another across the Eurasian continent until the polar outbreak occurs. These troughs and ridges reach their maximum amplitude in much the same location and at the same time relative to the key day in the majority of the 16 cases. The center of the wave packet moves along a curved trajectory approximating the mean 300 mb flow at a nearly constant rate of 30° longitude per day. The perturbation moves as an essentially barotropic dispersive wave across most of Eurasia, but its evolution becomes highly baroclinic as it approaches the East Asian coast. The wavetrain nature of this perturbation breaks down as it propagates out over the Pacific Ocean. This breakdown coincides in 8 of the 16 cases with the formation of a large amplitude ridge of great meridional extent.
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      On the Role of Successive Downstream Development in East Asian Polar Air Outbreaks

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4200736
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    contributor authorJoung, Chang Hi
    contributor authorHitchman, Matthew H.
    date accessioned2017-06-09T16:03:58Z
    date available2017-06-09T16:03:58Z
    date copyright1982/09/01
    date issued1982
    identifier issn0027-0644
    identifier otherams-60102.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4200736
    description abstractA composite of 16 strong East Asian polar outbreak occurrences, widely separated in time, reveals a clear sequence of events: beginning over the western North Atlantic six or seven days in advance of the key day (as defined by the cold frontal passage over Korea) troughs and ridges are seen to form, develop and decay successively downstream of one another across the Eurasian continent until the polar outbreak occurs. These troughs and ridges reach their maximum amplitude in much the same location and at the same time relative to the key day in the majority of the 16 cases. The center of the wave packet moves along a curved trajectory approximating the mean 300 mb flow at a nearly constant rate of 30° longitude per day. The perturbation moves as an essentially barotropic dispersive wave across most of Eurasia, but its evolution becomes highly baroclinic as it approaches the East Asian coast. The wavetrain nature of this perturbation breaks down as it propagates out over the Pacific Ocean. This breakdown coincides in 8 of the 16 cases with the formation of a large amplitude ridge of great meridional extent.
    publisherAmerican Meteorological Society
    titleOn the Role of Successive Downstream Development in East Asian Polar Air Outbreaks
    typeJournal Paper
    journal volume110
    journal issue9
    journal titleMonthly Weather Review
    identifier doi10.1175/1520-0493(1982)110<1224:OTROSD>2.0.CO;2
    journal fristpage1224
    journal lastpage1237
    treeMonthly Weather Review:;1982:;volume( 110 ):;issue: 009
    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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