风生近惯性波的传播和耗散综述

The Propagation and Dissipation of Wind-Generated Near-Inertial Waves: a Review

  • 摘要: 近惯性波广泛存在于全球海洋,对海洋中的能量级联非常重要。风输入海洋的近惯性能量在海洋中是如何传播和耗散的,能量在海洋中如何划分,一直是受到高度关注的话题。本文简要综述了风生近惯性波在海洋中的传播和耗散过程,包括影响近惯性波传播的因素,比如β效应、中尺度涡度、台风尾流和近惯性波自身的波数特征等;近惯性波在风暴等强天气过程下的传播方式;近惯性波在混合层中衰减时间尺度的模拟;近惯性能量在海洋中的分配以及现有研究中还未解决的问题。本文拟为今后的近惯性波研究提供一些思路,进一步促进近惯性波机制和模拟等方面研究的深入开展。

     

    Abstract: Near-inertial waves are ubiquitous in global ocean and important for ocean energy cascade. The propagation and dissipation of wind-generated near-inertial waves, as well as their energy partition in the ocean, are of great scientific importance. This article briefly reviews the propagation and dissipation processes of wind-generated near-inertial waves in the ocean, including the factors affecting the propagation of near-inertial waves, such as the β effect, mesoscale vorticity, typhoon wake, and the modes of near-inertial waves; the propagation of near-inertial waves under strong weather perturbations, such as storms; the simulations of the decay timescale of near-inertial waves in the mixed layer; the partition of near-inertial energy in the ocean; and the unresolved problems so far. The review is expected to provide insight for future research on mechanisms and simulations of near-inertial waves.

     

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