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    Poleward Stationary Eddy Heat Transport by the Tibetan Plateau and Equatorward Shift of Westerlies during Northern Winter

    Source: Journal of the Atmospheric Sciences:;2013:;Volume( 070 ):;issue: 010::page 3288
    Author:
    Park, Hyo-Seok
    ,
    Xie, Shang-Ping
    ,
    Son, Seok-Woo
    DOI: 10.1175/JAS-D-13-039.1
    Publisher: American Meteorological Society
    Abstract: he orographic effect of the Tibetan Plateau on atmospheric poleward heat transport is investigated using an atmospheric general circulation model. The linear interference between the Tibetan Plateau?induced winds and the eddy temperature field associated with the land?sea thermal contrast is a key factor for enhancing the poleward stationary eddy heat transport. Specifically, Tibetan Plateau?induced stationary waves produce northerlies over the cold eastern Eurasian continent, leading to a poleward heat transport. In another hot spot of stationary eddy heat transport over the eastern North Pacific, Tibetan Plateau?induced stationary waves transport relatively warm marine air northward.In an experiment where the Tibetan Plateau is removed, the poleward heat transport is mostly accomplished by transient eddies, similar to the Southern Hemisphere. In the presence of the Tibetan Plateau, the enhanced stationary eddy heat transport is offset by a comparable reduction in transient eddy heat transport. This compensation between stationary and transient eddy heat transport is seen in observed interannual variability. Both the model and observations indicate that an enhanced poleward heat transport by stationary waves weakens transient eddies by decreasing the meridional temperature gradient and the associated westerlies in midlatitudes.
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      Poleward Stationary Eddy Heat Transport by the Tibetan Plateau and Equatorward Shift of Westerlies during Northern Winter

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4219457
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    contributor authorPark, Hyo-Seok
    contributor authorXie, Shang-Ping
    contributor authorSon, Seok-Woo
    date accessioned2017-06-09T16:57:06Z
    date available2017-06-09T16:57:06Z
    date copyright2013/10/01
    date issued2013
    identifier issn0022-4928
    identifier otherams-76953.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4219457
    description abstracthe orographic effect of the Tibetan Plateau on atmospheric poleward heat transport is investigated using an atmospheric general circulation model. The linear interference between the Tibetan Plateau?induced winds and the eddy temperature field associated with the land?sea thermal contrast is a key factor for enhancing the poleward stationary eddy heat transport. Specifically, Tibetan Plateau?induced stationary waves produce northerlies over the cold eastern Eurasian continent, leading to a poleward heat transport. In another hot spot of stationary eddy heat transport over the eastern North Pacific, Tibetan Plateau?induced stationary waves transport relatively warm marine air northward.In an experiment where the Tibetan Plateau is removed, the poleward heat transport is mostly accomplished by transient eddies, similar to the Southern Hemisphere. In the presence of the Tibetan Plateau, the enhanced stationary eddy heat transport is offset by a comparable reduction in transient eddy heat transport. This compensation between stationary and transient eddy heat transport is seen in observed interannual variability. Both the model and observations indicate that an enhanced poleward heat transport by stationary waves weakens transient eddies by decreasing the meridional temperature gradient and the associated westerlies in midlatitudes.
    publisherAmerican Meteorological Society
    titlePoleward Stationary Eddy Heat Transport by the Tibetan Plateau and Equatorward Shift of Westerlies during Northern Winter
    typeJournal Paper
    journal volume70
    journal issue10
    journal titleJournal of the Atmospheric Sciences
    identifier doi10.1175/JAS-D-13-039.1
    journal fristpage3288
    journal lastpage3301
    treeJournal of the Atmospheric Sciences:;2013:;Volume( 070 ):;issue: 010
    contenttypeFulltext
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