On magnetospheric and induced currents during magnetic storms
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| 1Yaremenko, LN, 2Melnyk, GV, 2Shenderovskaya, OYa. 1S.I. Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine 2S.I. Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine, Kyiv, Ukraine |
| Kosm. nauka tehnol. 2006, 12 ;(1):070-075 |
| https://doi.org/10.15407/knit2006.01.070 |
| Publication Language: Russian |
Abstract: Our results of estimation of the influence of solar wind parameter changes and interplanetary magnetic field components on the geomagnetic storm field during magnetic clouds are reported. In some cases, the shift of Dst-minimum at nearby observatories is detected, that may be connected with the influence of induced currents. After eliminating magnetic substorms, the duration of the main phase of the magnetic storm which corresponds to the time of the increasing part of the magnetosphere ring current DR is equal to 2–5 hours. The conclusion is made that the induced current DR cannot get into the Earth's mantle more deeply than the currents of daily variations.
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References:
1. Mel'nik G. V., Yaremenko L. N. About magnetic storms and conductivity of the Earth's mantle. In: Geofizika-2005: V International geological-geophysical scientific and technical conference of young scientists and specialists: Abstracts, September 12-15, 2005, Saint Petersburg, Petergof, 189—191 (Saint Petersburg, 2005) [in Russian].
2. Yaremenko L. N. Daily geomagnetic variations, 136 p. (Nauk. dumka, Kiev, 1992) [in Russian].