Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 40, issue 6
Articles | Volume 40, issue 6
https://doi.org/10.5194/angeo-40-673-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/angeo-40-673-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 40, issue 6
Regular paper
 | 
05 Dec 2022
Regular paper |  | 05 Dec 2022

Width of plasmaspheric plumes related to the level of geomagnetic storm intensity

Zhanrong Yang, Haimeng Li, Zhigang Yuan, Zhihai Ouyang, and Xiaohua Deng

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Short summary
From the statistical analysis of potential plasmaspheric plume, we find that there is almost no correlation between plume width and the level of geomagnetic storm intensity. However, for plumes in the recovery phase after improved sifting, there is a negative correlation between the plume width and absolute value of minimum Dst during the storm. We suggest that the plasmaspheric particles may escape quickly during intense storms, causing plume to be relatively narrow during the recovery phase.
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