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, Jiun-Jih Miau

Research output: Contribution to journalArticle

26 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)83-89
Number of pages7
JournalGPS Solutions
Volume14
Issue number1
DOIs
Publication statusPublished - 2009 Jan 1

Fingerprint

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

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

Cite this

Hsiao, Chun Chieh ; Liu, J. Y. ; Oyama, K. I. ; Yen, N. L. ; Liou, Y. A. ; Chen, S. S. ; Miau, Jiun-Jih. / Seismo-ionospheric precursor of the 2008 Mw7.9 Wenchuan earthquake observed by FORMOSAT-3/COSMIC. In: GPS Solutions. 2009 ; Vol. 14, No. 1. pp. 83-89.
@article{7a7948f836954bc0932b7a36213b7c4f,
title = "Seismo-ionospheric precursor of the 2008 Mw7.9 Wenchuan earthquake observed by FORMOSAT-3/COSMIC",
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.",
author = "Hsiao, {Chun Chieh} and Liu, {J. Y.} and Oyama, {K. I.} and Yen, {N. L.} and Liou, {Y. A.} and Chen, {S. S.} and Jiun-Jih Miau",
year = "2009",
month = "1",
day = "1",
doi = "10.1007/s10291-009-0129-0",
language = "English",
volume = "14",
pages = "83--89",
journal = "GPS Solutions",
issn = "1080-5370",
publisher = "Springer Verlag",
number = "1",

}

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, Jiun-Jih.

In: GPS Solutions, Vol. 14, No. 1, 01.01.2009, p. 83-89.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Seismo-ionospheric precursor of the 2008 Mw7.9 Wenchuan earthquake observed by FORMOSAT-3/COSMIC

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, Jiun-Jih

PY - 2009/1/1

Y1 - 2009/1/1

N2 - 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.

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.

UR - http://www.scopus.com/inward/record.url?scp=71249113118&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=71249113118&partnerID=8YFLogxK

U2 - 10.1007/s10291-009-0129-0

DO - 10.1007/s10291-009-0129-0

M3 - Article

AN - SCOPUS:71249113118

VL - 14

SP - 83

EP - 89

JO - GPS Solutions

JF - GPS Solutions

SN - 1080-5370

IS - 1

ER -