E3S Web Conf.
Volume 62, 2018IX International Conference “Solar-Terrestrial Relations and Physics of Earthquake Precursors”
|Number of page(s)||10|
|Section||Geophysical Fields and their Interactions|
|Published online||07 November 2018|
Detection and analysis of short-period geomagnetic perturbations during increased solar activity and magnetic storms
1 Institute of Cosmophysical Research and Radio Wave Propagation FEB RAS, 684034 Kamchatka region, Elizovskiy district, Paratunka, Mirnaya str., 7, Russia
2 Kamchatka State Technical University, 683003 Kamchatka region, Petropavlovsk-Kamchatskiy, Kluchevskaya st., 35, Russia
3 Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation named after Nikolay Pushkov of the RAS, 142191, Moscow Oblast, Troitsk, Ulitsa Tekstilshchikov st., 1b, Russia
* Corresponding author: firstname.lastname@example.org
The dynamics of geomagnetic field variations on the eve and during the periods of magnetic storms of 2015 and 2017 has been studied (data of the horizontal component of the Earth’s magnetic field of the terrestrial station network were used). The method developed by the authors based on wavelet transform and adaptive threshold functions was applied. Weak geomagnetic disturbances synchronously appearing at the stations and preceding the onset of strong magnetic storms was extracted. The correlation of the isolated geomagnetic disturbances with the AE-index is shown, both in the occurrence times and in intensities. On the basis of comparison with interplanetary environment data (interplanetary magnetic field data and the solar wind parameters were analyzed), and also based on the results of other author works [1, 2]. we assume that the isolated effects have solar nature. The research is supported by the grant of the Russian Science Foundation No. 14-11-00194.
© The Authors, published by EDP Sciences, 2018
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