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Investigation of Ionospheric Variations During Magnetic Storm Over Turkey

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Abstract—

Variations in solar, geomagnetic, and seismic activity cause disturbance in the ionosphere that can be monitored effectively using GPS observations. Total electron content (TEC) is an effective parameter to understand structure of ionosphere and investigate ionospheric variability by making use of GPS receivers. The aim of this study is to determine TEC variations caused by three magnetic storms (Kp ≥ 8) occurred between 2012‒2017 years over ISTA station. GNSS-TEC was computed for 20 days before and day of magnetic storm. After that, 27 quiet days were defined to detect ionospheric disturbance during storm. Using statistical method, averages of TEC values were computed to obtain upper and lower bounds. Firstly, (Kp = 8) magnetic storm occured on 09.03.2012 was investigated and positive disturbance (about 11 TECU) was determined. Secondly, (Kp = 8.3) magnetic storm occured on 22.06.2015 was analyzed and negative disturbance (about 6 TECU) was obtained during magnetic storm. Thirdly, (Kp = 8.3) magnetic storm occured on 08.09.017 was discussed and positive disturbance (about 4 TECU) was confirmed.

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AKNOWLEDGMENTS

Author thanks to OMNIWeb for sharing Kp and Dst data.

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  1. Zonguldak Bulent Ecevit University, Department of Geomatics Engineering, Zonguldak, Turkey

    Samed Inyurt

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  1. Samed Inyurt
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Correspondence to Samed Inyurt.

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Samed Inyurt Investigation of Ionospheric Variations During Magnetic Storm Over Turkey. Geomagn. Aeron. 60, 131–135 (2020). https://doi.org/10.1134/S0016793220010120

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  • DOI: https://doi.org/10.1134/S0016793220010120

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