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    A Mid-Latitude Influence on Australian Monsoon Bursts

    Source: Journal of Climate:;2017:;volume( 030 ):;issue: 014::page 5377
    Author:
    Narsey, Sugata
    ,
    Reeder, Michael J.
    ,
    Ackerley, Duncan
    ,
    Jakob, Christian
    DOI: 10.1175/JCLI-D-16-0686.1
    Publisher: American Meteorological Society
    Abstract: he initiation of Northern Australian monsoon rainfall bursts is accompanied by an increase in cyclonic circulation in the monsoon region. In this study we show that the change in circulation at the start of the composite rainfall burst is predominantly influenced by mid-latitude front-like features. By exploiting the relationship between circulation tendency and the convergence of absolute vorticity flux, we investigate the circulation changes accompanying the initiation of Australian monsoon bursts. Moisture flux convergence is found to be proportional to the circulation changes in the monsoon region. Using a composite analysis we show that absolute vorticity fluxes through the southern boundary are by far the most important influence on monsoon burst circulation changes, with only one third of events more closely related to other influences including the Madden-Julian Oscillation. This is shown to be true throughout the wet season.
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      A Mid-Latitude Influence on Australian Monsoon Bursts

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4224363
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    contributor authorNarsey, Sugata
    contributor authorReeder, Michael J.
    contributor authorAckerley, Duncan
    contributor authorJakob, Christian
    date accessioned2017-06-09T17:13:33Z
    date available2017-06-09T17:13:33Z
    date issued2017
    identifier issn0894-8755
    identifier otherams-81368.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4224363
    description abstracthe initiation of Northern Australian monsoon rainfall bursts is accompanied by an increase in cyclonic circulation in the monsoon region. In this study we show that the change in circulation at the start of the composite rainfall burst is predominantly influenced by mid-latitude front-like features. By exploiting the relationship between circulation tendency and the convergence of absolute vorticity flux, we investigate the circulation changes accompanying the initiation of Australian monsoon bursts. Moisture flux convergence is found to be proportional to the circulation changes in the monsoon region. Using a composite analysis we show that absolute vorticity fluxes through the southern boundary are by far the most important influence on monsoon burst circulation changes, with only one third of events more closely related to other influences including the Madden-Julian Oscillation. This is shown to be true throughout the wet season.
    publisherAmerican Meteorological Society
    titleA Mid-Latitude Influence on Australian Monsoon Bursts
    typeJournal Paper
    journal volume030
    journal issue014
    journal titleJournal of Climate
    identifier doi10.1175/JCLI-D-16-0686.1
    journal fristpage5377
    journal lastpage5393
    treeJournal of Climate:;2017:;volume( 030 ):;issue: 014
    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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