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首页> 外文期刊>Acta Oceanologica Sinica >The 'von Karman vortex street' to the west of Big Island
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The 'von Karman vortex street' to the west of Big Island

机译：大岛以西的“冯·卡曼漩涡街”

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Satellite-tracked drifting buoy data and altimetry data are used to study the active vortex field to the west of Big Island. A pair of vortexes were observed at the trajectory of buoy in 1995. The westward propagation of the vortex pair is studied in detail by reproducing the loops of each vortex. The orbital period and radius of the pair of vortex are determined to be 10～11 d and 58～68 km. Two arrays of contra-rotating vortices are displayed in the average sea surface height anomaly (SSHA) field to the west of Big Island. Based on the calculation of the fluid dynamical parameter, the "von Karman vortex street" is proved to be generated to the west of Big Island as the North Equatorial Current impinges upon Big Island from the east. Finally, the analysis of the buoy trajectories in a decade contributes to the conclusion of the pattern of VKVS in a statistical view.
机译：卫星跟踪的浮标数据和测高数据用于研究大岛以西的活跃涡流场。 1995年在浮标的轨道上观察到一对涡。通过再现每个涡的环来详细研究涡对的向西传播。该对涡旋的轨道周期和半径确定为10〜11 d和58〜68 km。大岛以西的平均海平面高度异常（SSHA）场中显示了两个反向旋转的涡流阵列。根据流体动力学参数的计算，随着北赤道洋流从东部撞击大岛，在大岛以西产生了“ von Karman涡街”。最后，十年来对浮标轨迹的分析有助于从统计角度得出VKVS模式的结论。

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