Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091692 |
Global Dynamics of the Stationary M2 Mode‐1 Internal Tide | |
Samuel M. Kelly; Amy F. Waterhouse; Anna C. Savage | |
2021-05-11 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | A reduced‐physics model is employed at 1/25° to 1/100° global resolution to determine (i) if linear dynamics can reproduce the observed low‐mode M2 internal tide, (ii) internal‐tide sensitivity to bathymetry, stratification, surface tides, and dissipation parameterizations, and (iii) the amount of power transferred to the nonstationary internal tide. The simulations predict 200 GW of mode‐1 internal‐tide generation, consistent with a general circulation model and semi‐analytical theory. Mode‐1 energy is sensitive to damping, but a simulation using parameterizations for wave drag and wave‐mean interaction predicts 84% of satellite observed sea‐surface height amplitude variance on a 1° × 1° grid. The simulation energy balance indicates that 16% of stationary mode‐1 energy is scattered to modes 2‐4 and negligible energy propagates onto the shelves. The remaining 84% of energy is lost through parameterizations for high‐mode scattering over rough topography (54%) and wave‐mean interactions that transfer energy to the non‐stationary internal tide (29%). |
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/326745 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Samuel M. Kelly,Amy F. Waterhouse,Anna C. Savage. Global Dynamics of the Stationary M2 Mode‐1 Internal Tide[J]. Geophysical Research Letters,2021. |
APA | Samuel M. Kelly,Amy F. Waterhouse,&Anna C. Savage.(2021).Global Dynamics of the Stationary M2 Mode‐1 Internal Tide.Geophysical Research Letters. |
MLA | Samuel M. Kelly,et al."Global Dynamics of the Stationary M2 Mode‐1 Internal Tide".Geophysical Research Letters (2021). |
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