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

    The Relationship of the Quasi-biennial Oscillation to Atlantic Tropical Storm Activity

    Source: Monthly Weather Review:;1989:;volume( 117 ):;issue: 007::page 1545
    Author:
    Shapiro, Lloyd J.
    DOI: 10.1175/1520-0493(1989)117<1545:TROTQB>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Monthly averaged 30 and 50 mb zonal winds at Balboa are used to determine objectively the relationship of the quasi-biennial oscillation (QBO) to seasonal (August through October) Atlantic tropical storm activity during the years 1952?86. The largest correlations between storm activity and the 30 mb wind are found in June, which is 3 months before the center of the season. Extrapolation and direct calculation confirm a near in-phase relationship between tropical storm activity and the zonal wind at about 50 mb. Zonal winds filtered to remove periods 1 yr are used to establish correlations between the QBO and tropical storm activity for 1955?83 that are essentially independent of the month considered. A correlation at 30 mb is established with a conservative estimate of true skill, from both in-phase and out-of-phase information, that explains 30% of the variance in storm activity. The skill is much greater than that estimated from seasonal classifications of the QBO. The statistics are resilient to removal of the effects of the El Niño cycle. When El Niño years am explicitly excluded, the true skill explains an estimated 32% of the variance. Low-latitude storms are even more strongly related to the QBO. Physical mechanisms possibly responsible for the observed associations are discussed in light of these results. A mechanism for the observed correlations is suggested that emphasizes the difference between lower-tropospheric steering and the lower-stratospheric zonal wind. The relationships of the results, and suggested physical mechanism, to those of Gray are considered.
    • Download: (716.6Kb)
    • Show Full MetaData Hide Full MetaData
    • Item Order
    • Go To Publisher
    • Price: 5000 Rial
    • Statistics

      The Relationship of the Quasi-biennial Oscillation to Atlantic Tropical Storm Activity

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4202239
    Collections
    • Monthly Weather Review

    Show full item record

    contributor authorShapiro, Lloyd J.
    date accessioned2017-06-09T16:07:26Z
    date available2017-06-09T16:07:26Z
    date copyright1989/07/01
    date issued1989
    identifier issn0027-0644
    identifier otherams-61456.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4202239
    description abstractMonthly averaged 30 and 50 mb zonal winds at Balboa are used to determine objectively the relationship of the quasi-biennial oscillation (QBO) to seasonal (August through October) Atlantic tropical storm activity during the years 1952?86. The largest correlations between storm activity and the 30 mb wind are found in June, which is 3 months before the center of the season. Extrapolation and direct calculation confirm a near in-phase relationship between tropical storm activity and the zonal wind at about 50 mb. Zonal winds filtered to remove periods 1 yr are used to establish correlations between the QBO and tropical storm activity for 1955?83 that are essentially independent of the month considered. A correlation at 30 mb is established with a conservative estimate of true skill, from both in-phase and out-of-phase information, that explains 30% of the variance in storm activity. The skill is much greater than that estimated from seasonal classifications of the QBO. The statistics are resilient to removal of the effects of the El Niño cycle. When El Niño years am explicitly excluded, the true skill explains an estimated 32% of the variance. Low-latitude storms are even more strongly related to the QBO. Physical mechanisms possibly responsible for the observed associations are discussed in light of these results. A mechanism for the observed correlations is suggested that emphasizes the difference between lower-tropospheric steering and the lower-stratospheric zonal wind. The relationships of the results, and suggested physical mechanism, to those of Gray are considered.
    publisherAmerican Meteorological Society
    titleThe Relationship of the Quasi-biennial Oscillation to Atlantic Tropical Storm Activity
    typeJournal Paper
    journal volume117
    journal issue7
    journal titleMonthly Weather Review
    identifier doi10.1175/1520-0493(1989)117<1545:TROTQB>2.0.CO;2
    journal fristpage1545
    journal lastpage1552
    treeMonthly Weather Review:;1989:;volume( 117 ):;issue: 007
    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