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    The Influence of Pacific SST Variability on the Precipitation over Southern Africa

    Source: Journal of Climate:;2003:;volume( 016 ):;issue: 014::page 2408
    Author:
    Misra, Vasubandhu
    DOI: 10.1175/2785.1
    Publisher: American Meteorological Society
    Abstract: This study is an analysis of AGCM model results to understand the dynamics of the response of precipitation over southern Africa (SA) to anomalies in the sea surface temperature (SST) over the Pacific Ocean. The pattern of interannual precipitation anomaly over SA and its temporal variations are quite similar in both the ensemble mean of the control (where AGCM is forced with observed SSTs in all ocean basins) and experimental runs (where AGCM is forced with seasonally varying climatological SST over the Pacific Ocean). However, the amplitude of the variability is found to be relatively reduced in the experimental runs. This is shown to be a result of the modulation of the Walker circulation by the variability of Pacific Ocean SST. The regional teleconnection pattern between the dominant mode of SA precipitation variability and SST anomalies over the eastern Indian Ocean is also influenced by the variations in Pacific SST. The nature of the teleconnection between SA precipitation and eastern Indian SST is apparent only when the Pacific SST variability is excluded. This is corroborated from observations as well.
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      The Influence of Pacific SST Variability on the Precipitation over Southern Africa

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4214358
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    contributor authorMisra, Vasubandhu
    date accessioned2017-06-09T16:41:40Z
    date available2017-06-09T16:41:40Z
    date copyright2003/07/01
    date issued2003
    identifier issn0894-8755
    identifier otherams-72363.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4214358
    description abstractThis study is an analysis of AGCM model results to understand the dynamics of the response of precipitation over southern Africa (SA) to anomalies in the sea surface temperature (SST) over the Pacific Ocean. The pattern of interannual precipitation anomaly over SA and its temporal variations are quite similar in both the ensemble mean of the control (where AGCM is forced with observed SSTs in all ocean basins) and experimental runs (where AGCM is forced with seasonally varying climatological SST over the Pacific Ocean). However, the amplitude of the variability is found to be relatively reduced in the experimental runs. This is shown to be a result of the modulation of the Walker circulation by the variability of Pacific Ocean SST. The regional teleconnection pattern between the dominant mode of SA precipitation variability and SST anomalies over the eastern Indian Ocean is also influenced by the variations in Pacific SST. The nature of the teleconnection between SA precipitation and eastern Indian SST is apparent only when the Pacific SST variability is excluded. This is corroborated from observations as well.
    publisherAmerican Meteorological Society
    titleThe Influence of Pacific SST Variability on the Precipitation over Southern Africa
    typeJournal Paper
    journal volume16
    journal issue14
    journal titleJournal of Climate
    identifier doi10.1175/2785.1
    journal fristpage2408
    journal lastpage2418
    treeJournal of Climate:;2003:;volume( 016 ):;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
    yabeshDSpacePersian