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    The Structure and Transport of the Gulf Stream at 73°W

    Source: Journal of Physical Oceanography:;1985:;Volume( 015 ):;issue: 011::page 1439
    Author:
    Halkin, Daniel
    ,
    Rossby, T.
    DOI: 10.1175/1520-0485(1985)015<1439:TSATOT>2.0.CO;2
    Publisher: American Meteorological Society
    Abstract: Between September 1980 and May 1983, 16 sections of temperature and velocity were obtained with the Pegasus instrument along a transect crossing the Gulf Stream at 73°W. The mean temperature and velocity fields of the upper 2000 meters were calculated. The transport above 2000 meters calculated from the sections had a mean of 87.8 (± 17.3) ? 106 m3 s?1. A comparison with mass flux measurements obtained by previous investigators at Cape Fear indicated that the addition to the transport of the Stream in the region was uniform with depth above 800 meters. The mean inflow measured at the Pegasus line was found to be uniform above 800 meters and to decrese substantially below this depth. The increase in transport at the line estimated from the mean cross-stream velocity field was 15.4 (± 5.8) ? 106 m3 s?1 per 100 km downstream distance. The temporal fluctuation of the Pegasus transport measurements was consistent with an annual cycle with a maximum in April. The mean eddy kinetic energy at the surface was 1500 cm2 s?2, of which 1000 cm2 s?2 was due to the meandering of the current. The velocity structure of the front was remarkably constant: the eddy kinetic energy attributable to structural changes of the front was SW 500 cm2 s?2, only three times as great as midocean values.
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      The Structure and Transport of the Gulf Stream at 73°W

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4163846
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    contributor authorHalkin, Daniel
    contributor authorRossby, T.
    date accessioned2017-06-09T14:47:38Z
    date available2017-06-09T14:47:38Z
    date copyright1985/11/01
    date issued1985
    identifier issn0022-3670
    identifier otherams-26900.pdf
    identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4163846
    description abstractBetween September 1980 and May 1983, 16 sections of temperature and velocity were obtained with the Pegasus instrument along a transect crossing the Gulf Stream at 73°W. The mean temperature and velocity fields of the upper 2000 meters were calculated. The transport above 2000 meters calculated from the sections had a mean of 87.8 (± 17.3) ? 106 m3 s?1. A comparison with mass flux measurements obtained by previous investigators at Cape Fear indicated that the addition to the transport of the Stream in the region was uniform with depth above 800 meters. The mean inflow measured at the Pegasus line was found to be uniform above 800 meters and to decrese substantially below this depth. The increase in transport at the line estimated from the mean cross-stream velocity field was 15.4 (± 5.8) ? 106 m3 s?1 per 100 km downstream distance. The temporal fluctuation of the Pegasus transport measurements was consistent with an annual cycle with a maximum in April. The mean eddy kinetic energy at the surface was 1500 cm2 s?2, of which 1000 cm2 s?2 was due to the meandering of the current. The velocity structure of the front was remarkably constant: the eddy kinetic energy attributable to structural changes of the front was SW 500 cm2 s?2, only three times as great as midocean values.
    publisherAmerican Meteorological Society
    titleThe Structure and Transport of the Gulf Stream at 73°W
    typeJournal Paper
    journal volume15
    journal issue11
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/1520-0485(1985)015<1439:TSATOT>2.0.CO;2
    journal fristpage1439
    journal lastpage1452
    treeJournal of Physical Oceanography:;1985:;Volume( 015 ):;issue: 011
    contenttypeFulltext
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