Seismo-ionospheric precursor of the 2008 Mw7.9 Wenchuan earthquake observed by FORMOSAT-3/COSMIC

Chun Chieh Hsiao, J. Y. Liu, K. I. Oyama, N. L. Yen, Y. A. Liou, S. S. Chen, J. J. Miau

研究成果: Article

28 引文 (Scopus)

摘要

The seismo-ionospheric precursor prior to the Mw7. 9 earthquake near Wenchuan, China, on 12 May 2008 was observed by the FORMOSAT-3/COSMIC satellite constellation. By binning radio occultation observations, the three-dimensional ionospheric structure can be obtained to monitor the ionospheric electron density variation prior to the earthquake. It has been determined that near the epicenter the F2-peak height, hmF2, descends about 25 km and the F2-peak electron density, NmF2, decreases about 2 × 105 el/cm3 around noon within 5 days prior to the earthquake. The integrated electron content decreases more than 2 TECU between 250 and 300 km altitude.

原文English
頁(從 - 到)83-89
頁數7
期刊GPS Solutions
14
發行號1
DOIs
出版狀態Published - 2009 一月 1

指紋

COSMIC
Sichuan earthquake 2008
earthquake
electron density
earthquake epicenter
radio
electron
FORMOSAT

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

引用此文

Hsiao, Chun Chieh ; Liu, J. Y. ; Oyama, K. I. ; Yen, N. L. ; Liou, Y. A. ; Chen, S. S. ; Miau, J. J. / Seismo-ionospheric precursor of the 2008 Mw7.9 Wenchuan earthquake observed by FORMOSAT-3/COSMIC. 於: GPS Solutions. 2009 ; 卷 14, 編號 1. 頁 83-89.
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abstract = "The seismo-ionospheric precursor prior to the Mw7. 9 earthquake near Wenchuan, China, on 12 May 2008 was observed by the FORMOSAT-3/COSMIC satellite constellation. By binning radio occultation observations, the three-dimensional ionospheric structure can be obtained to monitor the ionospheric electron density variation prior to the earthquake. It has been determined that near the epicenter the F2-peak height, hmF2, descends about 25 km and the F2-peak electron density, NmF2, decreases about 2 × 105 el/cm3 around noon within 5 days prior to the earthquake. The integrated electron content decreases more than 2 TECU between 250 and 300 km altitude.",
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Seismo-ionospheric precursor of the 2008 Mw7.9 Wenchuan earthquake observed by FORMOSAT-3/COSMIC. / Hsiao, Chun Chieh; Liu, J. Y.; Oyama, K. I.; Yen, N. L.; Liou, Y. A.; Chen, S. S.; Miau, J. J.

於: GPS Solutions, 卷 14, 編號 1, 01.01.2009, p. 83-89.

研究成果: Article

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AU - Hsiao, Chun Chieh

AU - Liu, J. Y.

AU - Oyama, K. I.

AU - Yen, N. L.

AU - Liou, Y. A.

AU - Chen, S. S.

AU - Miau, J. J.

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AB - The seismo-ionospheric precursor prior to the Mw7. 9 earthquake near Wenchuan, China, on 12 May 2008 was observed by the FORMOSAT-3/COSMIC satellite constellation. By binning radio occultation observations, the three-dimensional ionospheric structure can be obtained to monitor the ionospheric electron density variation prior to the earthquake. It has been determined that near the epicenter the F2-peak height, hmF2, descends about 25 km and the F2-peak electron density, NmF2, decreases about 2 × 105 el/cm3 around noon within 5 days prior to the earthquake. The integrated electron content decreases more than 2 TECU between 250 and 300 km altitude.

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