讲座简介

Hydrological extremes including extreme precipitation events and dry spells play a key role in modulating regional water and energy cycle in addition to their significant socioeconomic impacts. This talk discusses the seasonality, interannual variability, long-term trends, large-scale organization, and global model representation of hydrological extremes occurring in the contiguous United States. Specifically, we show that one of the major modes of interannual variability in the western US dryness in boreal summer is closely tied to the non-modal growth of a subseasonal-scale atmospheric disturbance over the North Pacific and is “seeded” by precipitation anomalies in East Asia. Also discussed are the implications of this discovery for the predictability of US precipitation in boreal summer.

主讲人简介

邓毅教授2000年本科毕业于北京大学，2005年University of Illinois at Urbana-Champaign 大气科学博士，2007年起任教佐治亚理工。邓毅教授主要研究方向包括中纬度动力学，区域极端天气事件，气溶胶大气环流相互作用等方面。发表SCI论文80余篇，目前担任Journal of Climate编委。