【学术报告】吕健教授,中国海洋大学

发布时间:2025-04-17 |      】 | 【打印】 【关闭


报告题目:Energetics Theory as the Crystal Ball for the Projection of Asian Monsoon Rainfall under Global Warming

报 告 人:吕健  教授     

单    位:中国海洋大学

邀 请 人:罗德海  研究员

时   间:2025年4月22日上午9:30

地   点:2号楼319会议室

报告摘要:

     In this talk I will tell a two-part story: I. the response of the South Asian Monsoon (SAM) circulation to global warming; II. Mode-based future projection of the East Asian Monsoon rainfall, with the energetic constraints underpinning the robust aspects of the future climate projections in the two stories.

     We first show that the uncertain SAM circulation in CMIP6 consists of two robust components that partly offset each other: a weakening component linked to a global thermodynamic constraint and a northward shift component, the latter being interpretable through a regional 2D energetic perspective. We further attribute the robust northward shift of SAM circulation to positive cloud feedback over the Eurasia Continent and heat uptake in the Southern Ocean. A set of climate model simulations supports the finding that SAM rainfall increase is primarily due to the northward shift of circulation driven by extratropical processes. 

报告人简介:

     吕健,中国海洋大学海洋与大气学院筑峰教授。博士毕业于中国海洋大学和Dalhousie大学,分别在普林斯顿的地球流体力实验室和美国国家大气科学中心从事过博士后研究。曾就职于George Mason大学,COLA,和美国西北太平洋国家实验室。并担任过Climate Dynamics编委, 现担任 Journal of Climate,<<中国科学-地球科学>>和<<AAS>>的编委。发表论文170余篇。自2024年10月通过国家高层次人才引进计划入职中国海洋大学。主要从事气候与气候变化的大尺度动力学研究。研究方向包括大气环流的动力机制,波流相互作用,海气相互作用,以及从动力系统的角度考察气候系统的强迫相应关系及其在气候工程上的应用。