ANALYSIS BASED IN CODE GIM OF IONOSPHERIC TECANOMALY BEFORE EARTHQUAKE
Liu Jun; Chai Hongzhou; Liu Changjian; Chen Ke ;and Chang Yifeng
Institute of Surveying and Mapping, Information Engineer University, Zhengzhou 450052
Abstract Preseismic ionospheric TEC anomalies of Wenchuan earthquake on May 12th 2008 and Yushu earthquake on April 14th 2010 were studied by using CODE GIM (Center for Orbit Determination in Europe, Grid Ionospheric Model) data. By considering the sun and geomagnetism activity levels (Dst index and Kp index),the ionospheric anomalies were analyzed with median of TEC 10 days earlier as basic values and 1.5 fold standard deviation as error limit. The results show that TEC anomalies before both the earthquakes can be detected.
Key words ：
ionospheric
Total Electron Content(TEC)
earthquake
anomaly
prediction
Received: 01 January 1900
Corresponding Authors:
Liu Jun
Cite this article:
Liu Jun,Chai Hongzhou,Liu Changjian et al. ANALYSIS BASED IN CODE GIM OF IONOSPHERIC TECANOMALY BEFORE EARTHQUAKE[J]. , 2011, 31(6): 39-42.
Liu Jun,Chai Hongzhou,Liu Changjian et al. ANALYSIS BASED IN CODE GIM OF IONOSPHERIC TECANOMALY BEFORE EARTHQUAKE[J]. jgg, 2011, 31(6): 39-42.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2011/V31/I6/39
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