Initial responses of magnetospheric plasma flows to the dynamic pressure enhancements

Author

Xiaochen Shen ; Quanqi Shi ; Anmin Tian ; Suiyan Fu ; Qiugang Zong ; Zuyin Pu

Author_Institution

Shandong Provincial Key Lab. of Opt. Astron. & Solar-Terrestrial Environ., Shandong Univ. at Weihai, Weihai, China

fYear

2014

fDate

16-23 Aug. 2014

Firstpage

1

Lastpage

4

Abstract

Using the solar wind data obtained from OMNI web, we find 1778 dynamic pressure enhancement events during Mar 2007 to Dec 2012. Then we check the responses of Magnetospheric plasma flows to these events and find 64 responses show clear sudden impulse (SI) signatures from THEMIS observations. We superpose the initial responses of the flows in one plot to find two flow vortices exist at two sides of the near earth magnetotail respectively, which was not observed in-situ before. There are some ULF wave observations after initial responses.

Keywords

magnetospheric electromagnetic wave propagation; magnetotail; plasma flow; radiowave propagation; solar wind; vortices; AD 2007 03 to 2012 12; OMNI web; THEMIS observations; ULF wave observations; dynamic pressure enhancement events; flow vortices; magnetospheric plasma flows; near-earth magnetotail; solar wind data; sudden impulse signatures; Electric shock; Interplanetary; Magnetic fields; Magnetosphere; Physics; Plasmas; Space vehicles;

fLanguage

English

Publisher

ieee

Conference_Titel

General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI

Conference_Location

Beijing

Type

conf

DOI

10.1109/URSIGASS.2014.6929925

Filename

6929925