Solar wind dynamic pressure pulse - driven magnetospheric vortices and waves
Quanqi Shi1, Anmin Tian1, Qiugang Zong2, Suiyan Fu2, Michael Hartinger3, Vassilis Angelopoulos4, Xiaochen Shen5, Huayu Zhao2, Zuyin Pu6, Dr. James M Weygand, PhD7, Joachim Raeder8, Xuzhi Zhou9, Hui Zhang10 and Malcolm Wray Dunlop11, (1)Shandong University at Weihai, Institute of Space Science, Weihai, China, (2)Peking University, School of Earth and Space Sciences, Beijing, China, (3)Space Science Institute, Boulder, United States, (4)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States, (5)Shandong University at Weihai, Weihai, China, (6)Peking University, Institute of Space Physics and Applied Technology, Beijing, China, (7)University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, (8)University of New Hampshire, Space Science Center, Durham, United States, (9)University of California Los Angeles, Los Angeles, CA, United States, (10)University of Alaska Fairbanks, Fairbanks, AK, United States, (11)Science and Technology Facilities Council, RAL Space, Didcot, United Kingdom
Abstract:
We study the interaction of the solar wind dynamic pressure increase/decrease with the magnetosphere using THEMIS satellites at both dayside and nightside in different geocentric distances. Vortices generated by the dynamic pressure compression/expansion passing along the magnetopause are also found and is compared with model predictions. ULF waves and vortices are excited in the dayside and nightside plasma sheet when dynamic pressure increase/decrease hit the magnetotail. The related ionospheric responses, such as TCVs, are also investigated. We compare Global MHD simulations with the observations.
