| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10703850 | Journal of Atmospheric and Solar-Terrestrial Physics | 2011 | 10 Pages |
Abstract
⺠Observations of the electric component of Schumann resonances at Modra are analysed. âºFrequencies and Q-factors of all first four SR modes decreased from 2002 to 2009. âºDecrease of first two SR mode frequencies was greater than in the previous solar cycle. âºEffective thunderstorm areas are calculated from diurnal frequency range. âºDifference between the NH and SH summer areas almost vanishes in deep solar minimum.
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Authors
A. OndráÅ¡ková, S. Å evÄÃk, P. Kostecký,