The very low-frequency transmitter radio wave anomalies related to the 2010 Ms 7.1 Yushu earthquake observed by the DEMETER satellite and the possible mechanism

Zhao, Shufan; Shen, XuHui; Zhima, Zeren; Zhou, Chen

doi:https://doi.org/10.5194/angeo-38-969-2020

Articles | Volume 38, issue 5

https://doi.org/10.5194/angeo-38-969-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Satellite observations for space weather and geo-hazard

https://doi.org/10.5194/angeo-38-969-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 38, issue 5

Regular paper

|

10 Sep 2020

Regular paper |

| 10 Sep 2020

The very low-frequency transmitter radio wave anomalies related to the 2010 Ms 7.1 Yushu earthquake observed by the DEMETER satellite and the possible mechanism

Shufan Zhao, XuHui Shen, Zeren Zhima, and Chen Zhou

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Final revised paper (published on 10 Sep 2020)
Preprint (discussion started on 03 Mar 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'Referee comments to the paper', Anonymous Referee #1, 06 Apr 2020
- AC1: 'Reply to Refviewer#1', S. Zhao, 23 Apr 2020
RC2: 'Comment', Anonymous Referee #2, 20 Apr 2020
- AC2: 'Reply to Refviewer#2', S. Zhao, 23 Apr 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Reconsider after major revisions (further review by editor and referees) (23 Apr 2020) by Mirko Piersanti

AR by S. Zhao on behalf of the Authors (29 May 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (11 Jun 2020) by Mirko Piersanti

RR by Anonymous Referee #2 (12 Jun 2020)

ED: Publish as is (27 Jul 2020) by Mirko Piersanti

AR by S. Zhao on behalf of the Authors (27 Jul 2020) Manuscript

Short summary

We use satellite data to analyze precursory anomalies of the western China Ms 7.1 Yushu earthquake by analyzing the signal-to-noise ratio (SNR) and using the full-wave model to illustrate a possible mechanism for how the anomalies occurred. The results show that very low-frequency (VLF) radio wave SNR in the ionosphere decreased before the Yushu earthquake. The full-wave simulation results confirm that electron density variation in the lower ionosphere will affect VLF radio signal SNR.