Improving wave modeling performance by incorporating wave-generated turbulence dissipation and improved post-breaking spectrum

IF 3.1 3区地球科学 Q2 METEOROLOGY & ATMOSPHERIC SCIENCES Ocean Modelling Pub Date : 2023-12-23 DOI:10.1016/j.ocemod.2023.102311

Fuwei Wang , Yongzeng Yang , Xunqiang Yin , Xingjie Jiang , Meng Sun

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Abstract

The wave-generated turbulence dissipation term together with the improved post-breaking spectrum term proposed in this paper are incorporated in the MASNUM wave model as new dissipation terms. To compare the performance of these terms with the previous dissipation term in wave simulation, comprehensive validations of the simulated results were conducted against satellite data and NDBC buoy data on the significant wave heights. The results show that the incorporation of the wave-generated turbulence dissipation term with the improved post-breaking spectrum term significantly improves the model performance, the deviations are significantly reduced, and the correlation coefficients are effectively improved. In particular, there is a noticeable improvement in the simulation of significant wave heights exceeding 4 m or 6 m. In addition, a preliminary ideal experiment was conducted to compare the effect of the swell dissipation term proposed by Zieger et al. (2015) and the wave-generated turbulence dissipation term, and the results show that the dissipation magnitudes of the two terms are consistent to some extent.

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通过纳入波浪产生的湍流消散和改进的破浪后频谱，提高波浪建模性能

本文提出的波浪产生的湍流耗散项和改进的破波后频谱项作为新的耗散项被纳入 MASNUM 波浪模型。为了比较这些耗散项与之前的耗散项在波浪模拟中的性能，我们根据卫星数据和 NDBC 浮标的显著波高数据对模拟结果进行了全面验证。结果表明，将波浪产生的湍流耗散项与改进的断裂后频谱项结合在一起，可显著改善模型性能，偏差明显减小，相关系数得到有效改善。特别是对超过 4 米或 6 米的显著波高的模拟有明显改善。此外，还进行了初步的理想实验，比较了 Zieger 等（2015 年）提出的涌浪耗散项和波浪产生的湍流耗散项的效果，结果表明两个项的耗散幅度在一定程度上是一致的。

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来源期刊

Ocean Modelling 地学-海洋学

CiteScore

5.50

自引率

9.40%

发文量

审稿时长

19.6 weeks

期刊介绍： The main objective of Ocean Modelling is to provide rapid communication between those interested in ocean modelling, whether through direct observation, or through analytical, numerical or laboratory models, and including interactions between physical and biogeochemical or biological phenomena. Because of the intimate links between ocean and atmosphere, involvement of scientists interested in influences of either medium on the other is welcome. The journal has a wide scope and includes ocean-atmosphere interaction in various forms as well as pure ocean results. In addition to primary peer-reviewed papers, the journal provides review papers, preliminary communications, and discussions.