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    Stratified Abyssal Flow in the Presence of Fractured Ridges

    Source: Journal of Physical Oceanography:;1994:;Volume( 024 ):;issue: 002::page 403
    Author:
    Pedlosky, Joseph
    DOI: 10.1175/1520-0485(1994)024<0403:SAFITP>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: A linear, two-layer model for abyssal flow driven by a specified upwelling into the thermocline is studied when the ocean basin is partially blocked by a meridional barrier in the lower layer. The barrier is meant to represent a midoceanic ridge, and the space between the termination points of the ridge and the northern and southern basin boundaries represents the gaps that pierce most ridge systems. It is found that the deep flow is only partially blocked by the barrier. A substantial flow threads through the gaps in the form of zonal jets. The portion of the flow that is blocked by the ridge produces a recirculating, cyclonic gyre east of the ridge, and its latitudinal extent is typically smaller than the unbroken interval of the ridge. The overall structure of the recirculation and the degree of blocking are related to robust integral conditions constraining the circulation around the ridge. Although weaker, a similar recirculation is often found in the unblocked layer above the ridge as an upward extension of the deep circulation.
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      Stratified Abyssal Flow in the Presence of Fractured Ridges

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4165253
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    contributor authorPedlosky, Joseph
    date accessioned2017-06-09T14:51:05Z
    date available2017-06-09T14:51:05Z
    date copyright1994/02/01
    date issued1994
    identifier issn0022-3670
    identifier otherams-28167.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4165253
    description abstractA linear, two-layer model for abyssal flow driven by a specified upwelling into the thermocline is studied when the ocean basin is partially blocked by a meridional barrier in the lower layer. The barrier is meant to represent a midoceanic ridge, and the space between the termination points of the ridge and the northern and southern basin boundaries represents the gaps that pierce most ridge systems. It is found that the deep flow is only partially blocked by the barrier. A substantial flow threads through the gaps in the form of zonal jets. The portion of the flow that is blocked by the ridge produces a recirculating, cyclonic gyre east of the ridge, and its latitudinal extent is typically smaller than the unbroken interval of the ridge. The overall structure of the recirculation and the degree of blocking are related to robust integral conditions constraining the circulation around the ridge. Although weaker, a similar recirculation is often found in the unblocked layer above the ridge as an upward extension of the deep circulation.
    publisherAmerican Meteorological Society
    titleStratified Abyssal Flow in the Presence of Fractured Ridges
    typeJournal Paper
    journal volume24
    journal issue2
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1994)024<0403:SAFITP>2.0.CO;2
    journal fristpage403
    journal lastpage417
    treeJournal of Physical Oceanography:;1994:;Volume( 024 ):;issue: 002
    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