Possible Spatial Extent of Ionospheric GPS-TEC and NmF2 Anomalies Related to the 1999 Chi-Chi and Chia-Yi Earthquakes in Taiwan

NCUIR > College of Earth Sciences > Graduate Institute of Space Science > journal & Dissertation > Item 987654321/27416

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/27416

Title:	Possible Spatial Extent of Ionospheric GPS-TEC and NmF2 Anomalies Related to the 1999 Chi-Chi and Chia-Yi Earthquakes in Taiwan
Authors:	Nishihashi,M;Hattori,K;Jhuang,HK;Liu,JY
Contributors:	太空科學研究所
Keywords:	TOTAL ELECTRON-CONTENT;FOF2
Date:	2009
Issue Date:	2010-06-29 18:38:01 (UTC+8)
Publisher:	中央大學
Abstract:	Scientists analyzed temporal variations of local data recorded in Taiwan and reported anomalous reductions in the ionospheric total electron content (TEC) on days 4 and 3 before (17 and 18 September) the Chi-Chi earthquake (M-w 7.6, M-L 7.3), and days 3 and 1 prior to (19 and 21 October) the Chia-Yi earthquake (M-L 6.4) in Taiwan. In this paper, we propose a spatial analysis which compares the data recorded inside and outside of the earthquake area around Taiwan to discriminate whether the anomalies are local (earthquake related) or global (non-earthquake related) phenomena. Results suggest that the anomalies appearing day 3 before the Chi-Chi earthquake, and days 3 and I before the Chia-Yi earthquake are local (earthquake related) phenomena and the anomaly appearing on 17 September 1999 (day 4 before) might be the result of both global phenomena (i.e., a geomagnetic storm) and the local effect of the Chi-Chi earthquake.
Relation:	TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
Appears in Collections:	[Graduate Institute of Space Science] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	532	View/Open

社群 sharing