Articles | Volume 7, issue 5
https://doi.org/10.5194/se-7-1405-2016
https://doi.org/10.5194/se-7-1405-2016
Research article
 | 
19 Oct 2016
Research article |  | 19 Oct 2016

Ionospheric influence on the seismo-telluric current related to electromagnetic signals observed before the Wenchuan MS 8.0 earthquake

Mei Li, Handong Tan, and Meng Cao

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Short summary
The paper focuses on the enhancement of the electromagnetic signal in the waveguide between the surface of the Earth and ionosphere. The ionosphere can facilitate the electromagnetic wave propagation, as if the detectability of the observing system is improved effectively, which makes it reasonable that sometimes electromagnetic signals are recorded at a seemingly unreasonable distance.