Surface Wave Numerical Simulation and Characteristics Analysis Considering the Effect of Sea Ice in the Bohai Sea, China

IF 1.9 4区地球科学 Q2 GEOCHEMISTRY & GEOPHYSICS

pure and applied geophysics Pub Date : 2025-02-14 DOI:10.1007/s00024-025-03671-9

Wenbo Li, Zhifeng Wang, Rui Li, Che Yue, Wei Zhang, Shengjian Chen

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引用次数: 0

Abstract

The Bohai Sea is the primary sea area in China for which sea ice exists. Sea ice affects the socio-economics of the region tremendously. Simultaneously, the existence of sea ice contributes significantly to waves. This study proposed an ice-wave parameterization scheme suitable for Bohai Sea and investigated wave characteristic trends in the Bohai Sea. We utilized the WAVEWATCH III (WW3) wave model, integrated with a sea ice model, to perform a numerical simulation of wave conditions over the past 41 years. The outcomes of wave simulation are employed to characterize the spatial and temporal features of the wave climate along with the monthly, seasonal, and annual significant wave heights (SWH) in the Bohai Sea for 1979–2019. The results show that the wave characteristics of the sea area have obvious changes after the addition of sea ice, which proves the importance of sea ice influence on waves. The attenuation rate of SWH in Liaodong Bay exceeds 30% after the addition of sea ice, while the attenuation rate in coastal areas can reach up to 60%. Besides, the regularity between the variations of sea ice and waves in Liaodong Bay has been revealed, the correlation coefficients of SWH and ice thickness, as well as ice concentration, are − 0.79 and − 0.81. In the end, the recurrence interval of SWH was studied to provide a reference for ship navigation, offshore engineering construction, wharf design, disaster prevention and reduction in the Bohai Sea.

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考虑海冰影响的渤海表面波数值模拟及特征分析

渤海是中国存在海冰的主要海域。海冰对该地区的社会经济影响巨大。同时，海冰的存在对波浪也有很大的影响。提出了适用于渤海地区的冰波参数化方案，研究了渤海地区的冰波特征趋势。我们利用WAVEWATCH III （WW3）波浪模型，结合海冰模型，对过去41年的波浪条件进行了数值模拟。利用波浪模拟结果，分析了1979-2019年渤海波浪气候及月、季、年有效波高的时空特征。结果表明，海冰加入后海域的波浪特征发生了明显变化，证明了海冰对波浪影响的重要性。海冰加入后，辽东湾SWH衰减率超过30%，沿海地区衰减率可达60%。此外，辽东湾海冰与波浪的变化具有一定的规律性，SWH与冰厚和冰浓度的相关系数分别为- 0.79和- 0.81。最后，对渤海海域SWH的重现区间进行了研究，为渤海海域船舶航行、海工建设、码头设计、防灾减灾等提供参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

pure and applied geophysics 地学-地球化学与地球物理

CiteScore

4.20

自引率

5.00%

发文量

240

审稿时长

9.8 months

期刊介绍： pure and applied geophysics (pageoph), a continuation of the journal "Geofisica pura e applicata", publishes original scientific contributions in the fields of solid Earth, atmospheric and oceanic sciences. Regular and special issues feature thought-provoking reports on active areas of current research and state-of-the-art surveys. Long running journal, founded in 1939 as Geofisica pura e applicata Publishes peer-reviewed original scientific contributions and state-of-the-art surveys in solid earth and atmospheric sciences Features thought-provoking reports on active areas of current research and is a major source for publications on tsunami research Coverage extends to research topics in oceanic sciences See Instructions for Authors on the right hand side.