时 间：2026年1月22 日（周四）10：00 – 11：00
地 点：中北理科大楼A1514室
主持人：史兴杰 华东师范大学副教授
摘 要：
Energy transfer from balanced motions (BMs) to near-inertial waves (NIWs) is increasingly recognized as a potentially crucial yet poorly understood component in the ocean energy pathway from generation to dissipation. Estimates of this transfer remain limited by sparse observations that fail to resolve the full spectrum of BMs. Here, leveraging unprecedented fine-scale measurements from the Surface Water and Ocean Topography (SWOT) mission, we quantify BM-to-NIW energy transfer rates along the western boundary current extensions with energetic BMs and NIWs. Results show that SWOT-derived transfer rates are orders of magnitude higher than those from conventional altimeters, comparable to the local wind power on NIWs, long considered as the dominant NIW source. This arises from SWOT’s capability to resolve fine-scale BMs that interact efficiently with NIWs through their induced strain but are underrepresented by conventional altimeters. These findings uncover the significant BM-to-NIW energy transfer, providing new insights into the ocean energy pathway.
报告人简介：
杜天时于中国海洋大学获得物理海洋学博士学位，现于崂山国家实验室从事博士后研究工作，入选国家“博士后创新人才支持计划”。他长期致力于海洋中小尺度动力过程及其与气候变化关联的研究，特别关注大洋东边界上升流、海洋涡旋的垂向输运以及SWOT卫星的科学应用等方向。