| Title: | Attenuation of Electric Field Eradiated by Underground Source |
| DOI No: | 10.1142/9789812702869_0046 |
| Source: | WAVE PROPAGATION: SCATTERING AND EMISSION IN COMPLEX MEDIA (pp 460-463)
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| Author(s): | Jiping Dong
P.O.Box 9628-8, Chinese Academy of Space Technology, Beijing, China 100086, China
Yougang Gao
P.O.Box 171, Beijing University of Posts and Telecommunications, Beijing, China 100876, China
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| Abstract: | In the paper, the expressions of subaerial electric field (lower frequency) eradiated by a unit electric current source horizontally placed underground is derived for half–space using the method of image charges and numerical calculations are also performed for various epicentral distances (≤500Km), several different frequencies (1Hz, 10Hz, 100Hz, 1KHz) and depths of the source (≤30Km). It is found that attenuation of electric field is much smart with depth of electric current source, frequency, and epicentral distance increasing. According to actual threshold for observation of electric field, the condition and possibility for detection of SES is also discussed. |
| Keywords: | seismo electric signal; electric current source; the method of image charges
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| Full Text: | View full text in PDF format (227KB) |
| TOC: | Back to Table of Contents |
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