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Subinertial Slope-Trapped Waves in the Northeastern Gulf of Mexico

机译:墨西哥东北部海湾的惯性坡陷波

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摘要

Current velocity from moored arrays of acoustic Doppler current profilers (ADCPs) deployed on the outer shelf and slope, south of Mobile Bay in the northeastern Gulf of Mexico, shows evidence of alongslope, generally westward-propagating subinertial baroclinic Kelvin waves with periods of about 16 and 21 days, amplitudes of 5-10 cm s~(-1), and wavelengths of about 500 km. The observed waves were highly coherent over the slope between about 200 and 500 m and accounted for a significant amount of the current variability below 200 m. The source of the waves could be attributed to effects of the Loop Current on the west Florida slope but is more likely due to direct forcing by Loop Current-generated eddies impacting the experimental area.
机译:分布在墨西哥东北海湾莫比尔湾以南的外陆架和斜坡上的系泊声学多普勒电流剖面仪(ADCP)阵列的流速显示了沿斜坡的证据,通常是向西传播的惯性斜斜开尔文波,周期约为16 21天,振幅5-10 cm s〜(-1),波长约500 km。观察到的波在大约200至500 m的斜坡上高度相干,并且说明了200 m以下电流变化的显着性。波浪的来源可能是由于环流对佛罗里达州西部斜坡的影响,但更可能是由于环流产生的涡流对实验区域的直接强迫。

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  • 来源
    《Journal of Physical Oceanography》 |2009年第6期|1475-1485|共11页
  • 作者单位

    Planning Systems Incorporated, Slidell, Louisiana;

    Naval Research Laboratory, Stennis Space Center, MS 39529-5004;

    Naval Research Laboratory, Stennis Space Center, Mississippi;

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  • 正文语种 eng
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