中国海洋大学学报（自然科学版）2026，Vol.56Issue(2)：1-12,12.DOI:10.16441/j.cnki.hdxb.20250068
快速增强台风"米克拉"影响下海浪场响应特征分析
Numerical Simulation and Characteristic Analysis of Wave Field Under the Influence of the Rapid Intensification of Typhoon Mekkhala
摘要
Abstract
With the global climate changing,the number of rapidly intensifying typhoons has shown an increasing trend.Investigating the spatiotemporal evolution characteristics of wave fields during typhoon rapid intensification by numerical simulation has a significant influence on coastal disaster prevention and mitigation.In this paper,a coupled typhoon-wave numerical model for the northeastern South China Sea based on the coupled ocean-atmosphere-wave-sediment transport(COAWST)model was developed in order to analyze the characteristics of wave fields under the rapidly intensifying Typhoon Mekkhala(2020).Results indicate that,with Mekkhala rapidly intensifying,there is a positive correlation be-tween the significant wave height and the change of local wind speed on the right side of the track,form-ing the about 5 m difference of the significant wave height compared to the other side.Additionally,sig-nificant wave height seems more sensitive to typhoon intensity than to typhoon size.Within five times of the radius of maximum wind speed away from the typhoon center,wave age moderately decreases,while the mean wave direction is weak in response to the rapidly increasing wind field,maintaining a 60° counterclockwise deflection relative to background wave direction.Further analysis of the wave spec-trum shows that,ignoring the background wave field,wave spectral energy in the right-front quadrant increases during typhoon rapid intensification,while a bimodal wave spectral dominated by wind waves emerges in the left-rear quadrant.Notably,wind wave components with faster group velocity transmit from this quadrant to the right-rear quadrant,generating low-frequency swells.关键词
海-气-浪耦合模式/数值模拟/台风浪/快速增强/海浪谱Key words
coupled ocean-atmosphere-wave-sediment transport/numerical simulation/typhoon wave/rapid intensification/wave spectra分类
海洋科学引用本文复制引用
史玥双,孙建,张文清,刘庆翔,吕尚霖..快速增强台风"米克拉"影响下海浪场响应特征分析[J].中国海洋大学学报（自然科学版）,2026,56(2):1-12,12.基金项目
国家重点研究发展计划项目(2023YFC3107803) （2023YFC3107803）
国家自然科学基金项目(U20A2099,41976017)资助Supported by the National Key Research and Development Program of China(2023YFC3107803) （U20A2099,41976017）
the National Natural Science Foun-dation of China(U20A2099,41976017) （U20A2099,41976017）
