Geoelectric field as a GIC proxy during the intense geomagnetic storms and Polish transmission lines failures occurrence
- 1Siedlce University, Institute of Mathematics, Siedlce, Poland (gila@uph.edu.pl)
- 2Siedlce University, Institute of Computer Sciences, Siedlce, Poland
- 3AGH, Faculty of Electrical Engineering, Automatics, Computer Science and Biomedical Engineering, Krakow, Poland
- 4Space Research Centre, Polish Academy of Sciences, Warsaw, Poland
We study intense geomagnetic storms (Dst < 100nT) during the first half of the solar cycle 24. This type of storm appeared only a few times, mostly associated with southwardly directed heliospheric magnetic field Bz . Using various methodology as self-organizing maps, statistical and superposed epoch analysis, we show that during and right after intense geomagnetic storms, growth in the number of transmission lines failures, which might be of solar origin, appeared. We also examine the temporal changes in the number of failures during 2010-2014 and found the growing linear tendency of electrical grid failures occurrence possibly connected with solar activity. We confront these results with the geoelectric field calculated for the Poland region using a 1-D layered conductivity Earth model.
How to cite: Gil, A., Berendt-Marchel, M., Modzelewska, R., Moskwa, S., Siluszyk, A., Siluszyk, M., Tomasik, L., Wawrzaszek, A., and Wawrzynczak, A.: Geoelectric field as a GIC proxy during the intense geomagnetic storms and Polish transmission lines failures occurrence, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-11822, https://doi.org/10.5194/egusphere-egu21-11822, 2021.
