论文标题
规模不变的海洋内波湍流中的降量能量通量
Downscale energy fluxes in scale invariant oceanic internal wave turbulence
论文作者
论文摘要
我们通过分析和数值分析内波动力学方程的刻度不变固定解。我们对共振能量转移的分析表明，三合一的三合会给出了领先的顺序贡献（i），并且（ii）通过在水平面中的quasi-colinear的三合会给予（ii）。发现其他类型的三合会的贡献是转向的。我们使用Garrett的修改量表不变限和内部波的Munk光谱来计算垂直和水平方向上高波数的能量通量的幅度。我们的结果与[Polzin等人的海洋混合的罚金尺度参数化相比，都相比之下。 （1995）]。
We analyze analytically and numerically the scale invariant stationary solution to the internal wave kinetic equation. Our analysis of the resonant energy transfers shows that the leading order contributions are given (i) by triads with extreme scale separation and (ii) by triads of waves that are quasi-colinear in the horizontal plane. The contributions from other types of triads is found to be subleading. We use the modified scale invariant limit of the Garrett and Munk spectrum of internal waves to calculate the magnitude of the energy flux towards high wave numbers in both the vertical and the horizontal directions. Our results compare favorably with the finescale parametrization of ocean mixing that was proposed in [Polzin et al. (1995)].
