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    Satellite Observations of Variations in Tropical Cyclone Convection Caused by Upper-Tropospheric Troughs

    Source: Journal of Applied Meteorology:;1991:;volume( 030 ):;issue: 008::page 1163
    Author:
    Rodgers, Edward B.
    ,
    Chang, Simon W.
    ,
    Stout, John
    ,
    Steranka, Joseph
    ,
    Shi, Jainn-Jong
    DOI: 10.1175/1520-0450(1991)030<1163:SOOVIT>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: The mutual adjustment between upper-tropospheric troughs and the structure of western Atlantic Tropical Cyclones Florence (1988) and Irene (1981) are analyzed using satellite and in situ data. Satellite-observed tracers (e.g., cirrus clouds, water vapor, and ozone) art used to monitor the circulation within the tropical cyclones' environment. The tropical cyclones' convection is inferred from satellite flown passive microwave and infrared sensors. In addition, numerical model simulations are used to analyze and interpret these satellite observations. The study suggests that the initiation and maintenance of intense convective outbreaks in these tropical cyclones during their mature stage are related to the channeling and strengthening of their outflow by upper-tropospheric troughs. The convection can be enhanced in response to the outflow jet-induced import of eddy relative angular momentum and ascending motion associated with the thermally direct circulation. The channeling and strengthening of the outflow occurs when the upper-tropospheric troughs are located in a favorable position relative to the tropical cyclones. Both Florence and Irene intensify after the onset of these intense convective episodes. Satellite observations also suggest that the cessation in the convection of the two tropical cyclones occurs when the upper-tropospheric troughs move near or over the tropical cyclones, resulting in the weakening of their outflow and the entrainment of dry upper-tropospheric air into their inner core.
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      Satellite Observations of Variations in Tropical Cyclone Convection Caused by Upper-Tropospheric Troughs

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4146970
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    • Journal of Applied Meteorology

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    contributor authorRodgers, Edward B.
    contributor authorChang, Simon W.
    contributor authorStout, John
    contributor authorSteranka, Joseph
    contributor authorShi, Jainn-Jong
    date accessioned2017-06-09T14:03:38Z
    date available2017-06-09T14:03:38Z
    date copyright1991/08/01
    date issued1991
    identifier issn0894-8763
    identifier otherams-11711.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4146970
    description abstractThe mutual adjustment between upper-tropospheric troughs and the structure of western Atlantic Tropical Cyclones Florence (1988) and Irene (1981) are analyzed using satellite and in situ data. Satellite-observed tracers (e.g., cirrus clouds, water vapor, and ozone) art used to monitor the circulation within the tropical cyclones' environment. The tropical cyclones' convection is inferred from satellite flown passive microwave and infrared sensors. In addition, numerical model simulations are used to analyze and interpret these satellite observations. The study suggests that the initiation and maintenance of intense convective outbreaks in these tropical cyclones during their mature stage are related to the channeling and strengthening of their outflow by upper-tropospheric troughs. The convection can be enhanced in response to the outflow jet-induced import of eddy relative angular momentum and ascending motion associated with the thermally direct circulation. The channeling and strengthening of the outflow occurs when the upper-tropospheric troughs are located in a favorable position relative to the tropical cyclones. Both Florence and Irene intensify after the onset of these intense convective episodes. Satellite observations also suggest that the cessation in the convection of the two tropical cyclones occurs when the upper-tropospheric troughs move near or over the tropical cyclones, resulting in the weakening of their outflow and the entrainment of dry upper-tropospheric air into their inner core.
    publisherAmerican Meteorological Society
    titleSatellite Observations of Variations in Tropical Cyclone Convection Caused by Upper-Tropospheric Troughs
    typeJournal Paper
    journal volume30
    journal issue8
    journal titleJournal of Applied Meteorology
    identifier doi10.1175/1520-0450(1991)030<1163:SOOVIT>2.0.CO;2
    journal fristpage1163
    journal lastpage1184
    treeJournal of Applied Meteorology:;1991:;volume( 030 ):;issue: 008
    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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