EGU25-7239, updated on 21 Mar 2025
https://doi.org/10.5194/egusphere-egu25-7239
EGU General Assembly 2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Poster | Tuesday, 29 Apr, 10:45–12:30 (CEST), Display time Tuesday, 29 Apr, 08:30–12:30
 
Hall X4, X4.31
Expansion velocity of the quiet time plasmapause based on THEMIS satellite
Giuli Verbanac1, Mario Bandić1, Ljiljana Ivanković2, and Slaviša Živković
Giuli Verbanac et al.
  • 1University of Zagreb Faculty of Science, Department of Geophysics, Zagreb, Croatia
  • 2University of Applied Sciences Velika Gorica, Croatia

The aim of the present study is to deduce the velocity of the plasmapause expansion based on the novel method that we have developed.
For that, we use the dataset of 6800 Plasmapause Positions crossed by the THEMIS spacecraft from 2008 to 2012 (Cho et al., 2015; Bandić et al., 2017). Plasmapause positions were identified from electron density profiles measured by THEMIS satellites.
Within this dataset, we aim at finding satellite plasmapause crossings during quiet geomagnetic activity periods. 
The quiet times will be defined based on values of geomagnetic activity index Kp. We will use different cut-off of Kp values with a step of 0.33 up to Kp=3.
The new method and results will be presented.

How to cite: Verbanac, G., Bandić, M., Ivanković, L., and Živković, S.: Expansion velocity of the quiet time plasmapause based on THEMIS satellite, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-7239, https://doi.org/10.5194/egusphere-egu25-7239, 2025.