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    The Annual Cycle of the Japan Sea Throughflow

    Source: Journal of Physical Oceanography:;2015:;Volume( 046 ):;issue: 001::page 23
    Author:
    Kida, Shinichiro
    ,
    Qiu, Bo
    ,
    Yang, Jiayan
    ,
    Lin, Xiaopei
    DOI: 10.1175/JPO-D-15-0075.1
    Publisher: American Meteorological Society
    Abstract: he mechanism responsible for the annual cycle of the flow through the straits of the Japan Sea is investigated using a two-layer model. Observations show maximum throughflow from summer to fall and minimum in winter, occurring synchronously at the three major straits: Tsushima, Tsugaru, and Soya Straits. This study finds the subpolar winds located to the north of Japan as the leading forcing agent, which first affects the Soya Strait rather than the Tsushima or Tsugaru Straits. The subpolar winds generate baroclinic Kelvin waves along the coastlines of the subpolar gyre, affect the sea surface height at the Soya Strait, and modify the flow through the strait. This causes barotropic adjustment to occur inside the Japan Sea and thus affect the flow at the Tsugaru and Tsushima Straits almost synchronously. The barotropic adjustment mechanism explains well why the observations show a similar annual cycle at the three straits. The annual cycle at the Tsugaru Strait is further shown to be weaker than that in the other two straits based on frictional balance around islands, that is, frictional stresses exerted around an island integrate to zero. In the Tsugaru Strait, the flows induced by the frictional integrals around the northern (Hokkaido) and southern (Honshu) islands are in opposite directions and tend to cancel out. Frictional balance also suggests that the annual cycle at the Tsugaru Strait is likely in phase with that at the Soya Strait because the length scale of the northern island is much shorter than that of the southern island.
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      The Annual Cycle of the Japan Sea Throughflow

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    contributor authorKida, Shinichiro
    contributor authorQiu, Bo
    contributor authorYang, Jiayan
    contributor authorLin, Xiaopei
    date accessioned2017-06-09T17:21:29Z
    date available2017-06-09T17:21:29Z
    date copyright2016/01/01
    date issued2015
    identifier issn0022-3670
    identifier otherams-83762.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4227023
    description abstracthe mechanism responsible for the annual cycle of the flow through the straits of the Japan Sea is investigated using a two-layer model. Observations show maximum throughflow from summer to fall and minimum in winter, occurring synchronously at the three major straits: Tsushima, Tsugaru, and Soya Straits. This study finds the subpolar winds located to the north of Japan as the leading forcing agent, which first affects the Soya Strait rather than the Tsushima or Tsugaru Straits. The subpolar winds generate baroclinic Kelvin waves along the coastlines of the subpolar gyre, affect the sea surface height at the Soya Strait, and modify the flow through the strait. This causes barotropic adjustment to occur inside the Japan Sea and thus affect the flow at the Tsugaru and Tsushima Straits almost synchronously. The barotropic adjustment mechanism explains well why the observations show a similar annual cycle at the three straits. The annual cycle at the Tsugaru Strait is further shown to be weaker than that in the other two straits based on frictional balance around islands, that is, frictional stresses exerted around an island integrate to zero. In the Tsugaru Strait, the flows induced by the frictional integrals around the northern (Hokkaido) and southern (Honshu) islands are in opposite directions and tend to cancel out. Frictional balance also suggests that the annual cycle at the Tsugaru Strait is likely in phase with that at the Soya Strait because the length scale of the northern island is much shorter than that of the southern island.
    publisherAmerican Meteorological Society
    titleThe Annual Cycle of the Japan Sea Throughflow
    typeJournal Paper
    journal volume46
    journal issue1
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/JPO-D-15-0075.1
    journal fristpage23
    journal lastpage39
    treeJournal of Physical Oceanography:;2015:;Volume( 046 ):;issue: 001
    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