Influence of a single lightning discharge on the intensity of an air electric field and acoustic emission of near-surface rocks
The effect was observed as a sharp fall of the electric potential gradient from +80 V m<sup>−1</sup> down to –21 V m<sup>−1</sup>. After that the field returned to its normal level according to the formula of the capacitor discharge with 17 s c...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2012-10-01
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| Series: | Solid Earth |
| Online Access: | http://www.solid-earth.net/3/307/2012/se-3-307-2012.pdf |
| Summary: | The effect was observed as a sharp fall of the electric potential gradient from +80 V m<sup>−1</sup> down to –21 V m<sup>−1</sup>. After that the field returned to its normal level according to the formula of the capacitor discharge with 17 s characteristic time. Simultaneously, the response of the acoustic emission of surface rocks in the range of frequencies between 6.5 kHz and 11 kHz was evaluated. |
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| ISSN: | 1869-9510 1869-9529 |