EGU25-20031, updated on 15 Mar 2025
https://doi.org/10.5194/egusphere-egu25-20031
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, X4.24
Characteristics of TEC at the polar cusp latitudes of Antarctica during the ascending phase of solar cycle 25
Adarsh Dube1, Anand Singh2, Rashmi Rawat2, and Shailendra Saini2
Adarsh Dube et al.
  • 1India Meteorological Department, Meteorological Training Institute, India (adarshdube92@gmail.com)
  • 2National Centre for Polar and Ocean Research, Goa, India

We report the total electron content (TEC) perturbations due to a G3 solar storm of the solar cycle 25. Measurements from 4 GPS stations over the East Antarctica, along ~70 S, are studied. A magnitude enhancement of 37.15% was seen in Syowa at 39E geo longitude. On the next day, TEC depleted by 55.55% magnitude. The other stations, Mawson at 62E, Bharati at 76E, and Davis at 77E, also report similar perturbations. The longitudinal propagation of the storm effect along a polar cusp latitude is presented. The depletion in TEC is further discussed as the recovery phase of the thermosphere.

How to cite: Dube, A., Singh, A., Rawat, R., and Saini, S.: Characteristics of TEC at the polar cusp latitudes of Antarctica during the ascending phase of solar cycle 25, EGU General Assembly 2025, Vienna, Austria, 27 Apr–2 May 2025, EGU25-20031, https://doi.org/10.5194/egusphere-egu25-20031, 2025.