Electron Temperature Fluctuations on the Eve and after the NEIAL Events Observed with the EISCAT Svalbard Radar
B. Dalipia, N. Sylab, F. Aliajb
aUniversity ``Kadri Zeka'', Faculty of Education, Zija Shemsiu Str. 3, 60000 Gjilan, Kosovo
bUniversity of Prishtina, Department of Physics, Eqrem Cabej Str. 51, 10000 Prishtina, Kosovo
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This work presents studies of naturally enhanced ion acoustic lines and the correlation they have with the electron temperature fluctuations on the eve and after the NEIAL events. The methodology used in this work is based on the analysis of European Incoherent Scatter Scientific Association raw data, archived at Rutherford-Appleton Laboratory (Harwell Oxford Campus) in the United Kingdom. The EISCAT Svalbard radar raw data were analyzed using two specialized programs: the Real Time Graph and the Grand Unified Incoherent Scatter Data Analysis Program, version 8.6. Our findings suggest a strong correlation between the NEIALs phenomenon and plasma parameter fluctuations such as the electron temperature in the Earth ionosphere. Our findings show that the plasma electron temperature progressively increases before the event, and progressively decreases after the event.

topics: space plasma physics, ionospheric physics, radar science, plasma diagnostics, electron temperature