Nonlinear Internal Waves in Lakes
Nonlinear Internal Waves in Lakes
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DOI：
10.1007/978-3-642-23438-5
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
K. Hutter
中科院分区：
文献类型：
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作者：
K. Hutter
湖泊（和海洋）内波动力学是地球“静止”水体地球物理流体力学的重要物理组成部分。内波的形成需要水体的季节性分层和（主要）风力的作用。由于它们在变深的盆地中传播，所产生的波场经常经历从大盆地尺度到小尺度的转换。只要这个裂变在流体动力学上是稳定的，就不会发生什么戏剧性的事情。然而，如果垂直密度梯度和金属离子中水平电流的剪切作用结合在一起，使理查德森数足够小(
Internal wave dynamics in lakes (and oceans) is an important physical component of geophysical fluid mechanics of ‘quiescent’water bodies of the Globe. The formation of internal waves requires seasonal stratification of the water bodies and generation by (primarily) wind forces. Because they propagate in basins of variable depth, a generated wave field often experiences transformation from large basin-wide scales to smaller scales. As long as this fission is hydrodynamically stable, nothing dramatic will happen. However, if vertical density gradients and shearing of the horizontal currents in the metalimnion combine to a Richardson number sufficiently small (