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DOI | 10.1029/2021GL095618 |
Energy transfer from PSI-generated M1 subharmonic waves to high-frequency internal waves | |
Wei Yang; Hao Wei; Liang Zhao | |
2022-01-10 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2022 |
英文摘要 | Internal tides (ITs) represent one of the major energy sources available for small-scale mixing in the ocean. Here, the energy pathway associated with ITs is examined based on measurements obtained at the East China Sea shelf slope. We reveal that after the occurrence of parametric subharmonic instability (PSI), energy can be further transferred from the PSI-generated subharmonic waves to high-frequency internal waves (HFIWs) through nonlinear interactions between them. This interprets the observed similar varying trends of magnitude between internal waves at near-inertial and high-frequency bands. Bispectrum and bicoherence estimates confirm that the M1 subharmonic wave interacts with a pair of HFIW which have larger vertical scales and a broad range of frequencies. The averaged net value of the energy transfer rate reaches 2 10-7 W kg-1, which has implications for a further significant role of this energy pathway on the spatial distribution of ocean mixing. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/345207 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Wei Yang,Hao Wei,Liang Zhao. Energy transfer from PSI-generated M1 subharmonic waves to high-frequency internal waves[J]. Geophysical Research Letters,2022. |
APA | Wei Yang,Hao Wei,&Liang Zhao.(2022).Energy transfer from PSI-generated M1 subharmonic waves to high-frequency internal waves.Geophysical Research Letters. |
MLA | Wei Yang,et al."Energy transfer from PSI-generated M1 subharmonic waves to high-frequency internal waves".Geophysical Research Letters (2022). |
条目包含的文件 | 条目无相关文件。 |
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