【报告人Speaker】：刘耿滨 南方科技大学博士生
【摘要Abstract】：Near-inertial internal waves (NIWs) play a crucial role in upper-ocean turbulent mixing through shear instabilities. Tropical cyclones (TCs), with their intense variable winds, contribute significantly to NIWs, yet their global impact has been poorly quantified due to observational and methodological challenges. In this study, we developed a novel data-driven model that integrates hourly satellite-tracked surface drifter data and refined TC records to provide a high-resolution global estimate of TC-induced near-inertial wind power (NIWP). Our results show that TCs contribute 0.019-0.024 TW annually to global NIWP, with nearly 45% of this in low-latitude oceans. A notable enhancement in thermocline mixing during TC events is identified in subtropical regions, particularly in the northwestern Pacific, based on fine-scale parameterization. Our findings uncover the episodic yet potentially important role of TCs in powering NIWs, with implications for ocean turbulent mixing.
【报告人简介Speaker Biography】：刘耿滨，现为南方科技大学2023级博士生，主要基于漂流浮标、Argo数据以及MITgcm海洋模式从事海洋近惯性内波的生成、耗散、以及与背景流场间的能量传递等方面的研究。相关成果发表在GRL与JPO等期刊上。
【时间Time】：2025年5月23日 9:30
【地点Venue】：2号楼1201
【邀请人Host】：陈植武 研究员
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