On the production and dissipation of mechanical energy in the ocean
On the production and dissipation of mechanical energy in the ocean
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DOI：
10.1029/jc089ic03p03439
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发表时间：
1984-05
影响因子：
--
通讯作者：
R. Lueck;R. Reid
中科院分区：
文献类型：
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作者：
R. Lueck;R. Reid
总机械能守恒方程(动能、重力能和弹性能)是从动量和质量守恒定律推导出来的，并在海洋体积上求平均，以等同于统计上稳定的海洋中机械能的产生和耗散。大气所做的功在生产中占主导地位，根据天气数据估计为0.1W/m2，这与大多数(但不是全部)已报道的湍流耗散观测结果一致。势能生产仅占总产量的0.2%，这意味着浮力涡流扩散率为10−，5m2/S，热考克斯数为200.从微观结构观察得出的扩散系数的“低”值似乎反映了相对较小的潜在能量产生。
The equation for the conservation of total mechanical energy (kinetic, gravitational, and elastic energy) is derived from the conservation of momentum and mass and averaged over the volume of the oceans to equate the production and dissipation of mechanical energy in a statistically steady ocean. The work done by the atmosphere dominates production and is estimated as 0.1 W/m2 from synoptic data which is consistent with most (but not all) of the reported observations of turbulent dissipation. Potential energy production contributes only .0.2% to the total production implying an eddy diffusivity of buoyancy of 10−5 m2/s and a thermal Cox number of 200. The “low” values of diffusivity derived from microstructure observations appear to reflect a relatively small potential energy production.