Application of a subfilter-scale flux model over the ocean
Application of a subfilter-scale flux model over the ocean
复制标题
子过滤尺度通量模型在海洋上的应用
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
P. Sullivan
中科院分区：
文献类型：
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作者：
P. Kelly;J. Wyngaard;P. Sullivan
摘要简单的速率方程模型子过滤器尺度标量和动量通量先前已开发的应用程序在所谓的“未知领域”的大气模拟，模型分辨率是可比的湍流的规模。这些模式在陆地上表现良好，但只有标量通量模式似乎在海洋上表现得足够好。海洋水平阵列湍流研究（OHATS）的数据分析表明，需要考虑移动的海洋-空气界面的子过滤应力模型。作者开发了简单的参数化的表面引起的压力波动的子过滤器应力的影响，导致良好的预测子过滤器动量通量在陆地和OHATS。
Abstract Simple rate equation models for subfilter-scale scalar and momentum fluxes have previously been developed for application in the so-called “terra incognita” of atmospheric simulations, where the model resolution is comparable to the scale of turbulence. The models performed well over land, but only the scalar flux model appeared to perform adequately over the ocean. Analysis of data from the Ocean Horizontal Array Turbulence Study (OHATS) reveals a need to account for the moving ocean–air interface in the subfilter stress model. The authors develop simple parameterizations for the effect of surface-induced pressure fluctuations on the subfilter stress, leading to good predictions of subfilter momentum flux both over land and in OHATS.