Ionospheric electron content anomalies detected by a FORMOSAT-3/COSMIC empirical model before and after the Wenchuan Earthquake

Yoshihiro Kakinami, Jann Yeng Liu, Lung Chih Tsai, Ko Ichiro Oyama

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

An empirical model of ionospheric electron content (IEC), based on FORMOSAT3/COSMIC (F3/C) data, is constructed in order to detect pre-earthquake anomalies. The empirical model provides IEC with four parameters of local time, season, longitude and latitude. For the first time we try to detect anomalies in the F3/C IEC by comparing the model values with observations during the 12 May 2008 Wenchuan Earthquake period. It is found that around the epicentre an IEC enhancement appears on day 3 (9 May) and sequential IEC reductions occur on day 6 to day 1 (6 to 11 May) before the earthquake.

Original languageEnglish
Pages (from-to)3571-3578
Number of pages8
JournalInternational Journal of Remote Sensing
Volume31
Issue number13
DOIs
Publication statusPublished - 2010 Apr

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)

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