Circulation on the central Bering Sea shelf, July 2008 to July 2010
Circulation on the central Bering Sea shelf, July 2008 to July 2010
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DOI：
10.1029/2012jc008303
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发表时间：
2012-10-03
影响因子：
3.6
通讯作者：
Woodgate, R.
中科院分区：
文献类型：
--
作者：
Danielson, S.;Weingartner, T.;Woodgate, R.
我们研究了2008年7月至2010年7月在白令海大陆架中部的环流测量在8个仪表系泊，后报风和数值模式的结果。在潮下时间尺度上，垂直积分运动方程表明，跨陆架平衡主要是地转的。沿陆架的平衡也主要是地转的，但局部加速度、风应力和底摩擦力占动量平衡的10-40%，这取决于季节和水深。该大陆架具有高度可变的流动，水柱平均矢量平均速度较小（
We examine the July 2008 to July 2010 circulation over the central Bering Sea shelf using measurements at eight instrumented moorings, hindcast winds and numerical model results. At sub-tidal time scales, the vertically integrated equations of motion show that the cross-shelf balance is primarily geostrophic. The along-shelf balance is also mainly geostrophic, but local accelerations, wind stress and bottom friction account for 10-40% of the momentum balance, depending on season and water depth. The shelf exhibits highly variable flow with small water column average vector mean speeds (