Ionospheric Pc1 waves during a storm recovery phase observed by the China Seismo-Electromagnetic Satellite

Gou, Xiaochen; Li, Lei; Zhang, Yiteng; Zhou, Bin; Feng, Yongyong; Cheng, Bingjun; Raita, Tero; Liu, Ji; Zhima, Zeren; Shen, Xuhui

doi:https://doi.org/10.5194/angeo-38-775-2020

Articles | Volume 38, issue 3

https://doi.org/10.5194/angeo-38-775-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/angeo-38-775-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 38, issue 3

Regular paper

|

24 Jun 2020

Regular paper |

| 24 Jun 2020

Ionospheric Pc1 waves during a storm recovery phase observed by the China Seismo-Electromagnetic Satellite

Xiaochen Gou, Lei Li, Yiteng Zhang, Bin Zhou, Yongyong Feng, Bingjun Cheng, Tero Raita, Ji Liu, Zeren Zhima, and Xuhui Shen

Data sets

CSES data CSES http://www.leos.ac.cn

Earth Online SWARM https://earth.esa.int/

Geomagnetic Equatorial Dst index Home Page World Data Center http://wdc.kugi.kyoto-u.ac.jp/dstdir/index.html

Coordinated Data Analysis Web (CDAWeb) NASA Goddard Space Flight Center https://cdaweb.sci.gsfc.nasa.gov/index.html/

Plasmapause simulation data NASA CCMC https://ccmc.gsfc.nasa.gov/

Short summary

The CSES observed ionospheric Pc1 waves near the wave injection regions in conjugate hemispheres during the recovery phase of the geomagnetic storm on 27 August 2018. The Pc1s were found to be Alfvén waves with mixed polarisation propagating along background magnetic lines in the ionosphere. We suggest that the possible sources of Pc1 are EMIC waves generated near the plasmapause by the outward expansion of the plasmasphere into the ring current during the recovery phase of geomagnetic storms.