讲座信息

讲座题目：The 2024 May space weather events: in the context of superstorms and supersubstorms

讲座嘉宾：Rajkumar Hajra（中国科学技术大学  教授）

讲座主持人：杨忠炜（国家空间科学中心）

时间：2025年2月28日10点

地点：线上 腾讯会议 411-8560-2478 (点此入会）   

          线下 中关村九章大厦A701                         

                                                                               

讲座摘要

The May 2024 space weather events, marked by complex near-Earth interplanetary structures, triggered the second-largest geomagnetic storm in the space age. The SYM-H=-518 nT superstorm was associated with six supersubstorms (SSSs) with SML intensities<-2500nT. The impacts of the space weather events include extreme cosmicray decreases, radiation belt electron losses, generation of intense geomagnetically induced currents, unusual intensification offield-aligned currents, ionospheric plasma anomaly and plasmadepletion. In the present talk, we will discuss the interplanetary causes of the superstorm and the SSSs and their impacts in the context of previous studies of the superstorms and SSSs.

嘉宾介绍

Rajkumar Hajra is a Specially Appointed Professor at the University of Science and Technology of China. He received Ph.D. from the University of Calcutta, India. He subsequently became a post-doctoral research fellowat the Brazilian National Institute for Space Research, and the French National Center for Scientific Research. He was selected as a "Ramanujan Fellow"by the Department of Science and Technology of the Government of India; and as a "Distinguished Researcher" by CAS. He received the"Excellent Young Science Fund Project (Overseas)" from the NSFC. He has authored or coauthored 88 scientific papers in refereedinternational journals, a NASA technical brief,and two book chapters.