报告题目：全球云辐射反馈：百分比形态约束与无人机智能观测
报 告 人: 马建 副教授
报告时间：2023年4月3日（周一）14:00-17:00
报告地点：气象楼 423会议室
主 持 人：陆春松 教授
报告简介：
Clouds substantially influence the radiative balance of climate system, with complex ongoing changes that provide the greatest uncertainty when projecting the magnitude of future global warming. Efforts to provide a tight constraint on cloud radiative feedback have, so far, been insufficient. Here, we identify percentage change in cloud fraction driven by sea surface temperature patterns, to be key to height variation of the tropical clouds. This inspires an emergent constraint on climate model projections with recent satellite measurements, effectively reducing cloud feedback uncertainty by about 65% and almost halves the intermodel range of future surface warming.
Ultimately, projection uncertainty of cloud change and radiative feedback comes from poorly understood convective dynamics due to the lack of 3-D observations of parcel motions. Here we introduce a cutting-edge cloud observing system, adopting robot-vision technology aboard multiple drones. This can provide perspective, persistent, and portable records of convection dynamical field, endorced by a stereo motion-tracking of cloud parcels. Now the device is under calibration and will be soon applied to scientific research, with potentials to build a global observation network for cloud dynamics aiding rigorous convective parameterization and reliable climate projection.
报告人简介：
马建，博士，上海交通大学海洋学院长聘教轨副教授，博士生导师，入选“上海高校特聘教授-东方学者”。报告人在热带气候变化与海气相互作用方面从事深入研究，包括区域气候变化的热动力机制，其对各种辐射反馈的影响，以及怎样利用观测数据来减小气候预测的不确定性。取得的成果均发表在国际著名期刊，共有学术论文34篇，其中SCI论文25篇，第一且通讯作者14篇，通讯作者4篇，成果得到广泛国际关注和高度评价，他引2760次，单篇引用最高222次，并担任AOGS会刊编委和多家国际著名SCI期刊的审稿人。2018年，《自然地学》杂志竞赛中获奖刊文，是全球10位获奖者唯一一位中国人（包括华人），并受邀在国际顶级杂志《年度综述》和《纽约科学院年刊》发表综述文章。
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大气物理学院
2023年3 月31日
