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Diurnal-period internal waves near point conception, California

机译:日周期内波近点概念,加利福尼亚

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Diurnal-period internal waves were observed near Point Conception California, using an array of moorings extending 120 km along the inner shelf. The waves have an along-shelf coherence scale of at least 50 km, and appear to propagate nearly straight onshore. Wave amplitudes vary over time, depending on thermal stratification and the amplitude of the diurnal sea breeze oscillation. Barotropic tides and vorticity over the mid-shelf are not correlated with internal wave amplitude. Large amplitude internal waves, with supercritical Froude numbers, are observed in mid-summer. Although such waves may drive vertical mixing and cross-shelf transport of passive particles, there is no significant correlation between wave amplitude and invertebrate settlement in the Santa Barbara Channel.
机译:在加利福尼亚点概念附近观察到了昼夜内波,使用了沿着内架延伸120公里的一系列系泊设备。这些海浪的沿架相干尺度至少为50 km,并且似乎在陆上几乎笔直传播。波幅随时间变化,取决于热分层和昼夜海风振荡的幅值。中层的正压潮汐和涡度与内部波幅无关。在仲夏,观察到具有超临界弗劳德数的大振幅内波。尽管此类波可能会驱动垂直混合和跨框架传输无源粒子,但在圣塔芭芭拉海峡波幅与无脊椎动物的沉降之间并没有明显的相关性。

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