报告时间: 2026年3月19日 10:00-11:30
报告地点：气象楼1114会议室
主 持 人：刘超 教授
报告题目: Exploring Climate Tipping Points and Surface Temperature Projections
专家简介：Jonathan H. Jiang, Ph.D. is a climate and Earth system scientist and science strategist with more than three decades of experience advancing the understanding of climate dynamics, atmospheric processes, and planetary systems. His research has played a leading role in applying satellite observations and system-level analysis to investigate climate variability, feedbacks, and potential tipping points relevant to long-term Earth resilience. Dr. Jiang is President of the AGU Global Environmental Change (GEC) Section and a member of the National Academies of Sciences, Engineering, and Medicine (NASEM) committee that produced A Science Strategy for the Human Exploration of Mars, contributing expertise at the intersection of climate science, sustainability, and planetary futures. He has authored over 300 peer-reviewed publications, is an elected Fellow of the American Meteorological Society, and has received multiple major scientific honors. His work bridges climate science, planetary exploration, and long-term human survival, emphasizing how understanding Earth’s climate system informs responsible stewardship of our planet and future exploration beyond it.
报告摘要：Climate tipping points represent critical thresholds in the Earth system beyond which small perturbations can trigger rapid, nonlinear, and potentially irreversible changes in global climate. This seminar examines the physical mechanisms underlying such tipping behavior by integrating insights from state-of-the-art climate models and satellite observations. Particular emphasis is placed on cloud radiative forcing and cloud–climate feedbacks, which remain among the largest sources of uncertainty in surface temperature projections. Clouds can either amplify or dampen warming depending on their altitude, structure, and microphysical properties, and their response to increasing atmospheric CO₂ is both complex and highly nonlinear. We will discuss how rising greenhouse gas concentrations influence cloud distributions and feedback strength, and why accurately simulating these processes is essential for identifying proximity to potential climate tipping points. The seminar will highlight recent advances and remaining challenges in constraining cloud responses, assess implications for long-term temperature projections, and explore what these findings mean for climate risk assessment. Attendees will be invited to consider the interconnected nature of the Earth system and the scientific insights needed to inform effective climate policy and long-term resilience strategies.
欢迎广大师生踊跃参加！
江苏省精密协同导航定位与智能应用工程研究中心
自然资源部遥感导航一体化应用工程技术创新中心
天都-南信大深空探测联合实验室
遥感与测绘工程学院
2026年3月16日
