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STUDY ON IONOSPHERIC TEC ANOMALY PRIOR TO WENCHUAN Ms8.0 EARTHQUAKE
汶川Ms8.0地震前电离层TEC异常分析

Keywords: GPS
总电子含量(TEC)
,电离层异常,汶川地震,前兆

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Abstract:

An Ms8.0 earthquake struck Wenchuan in Sichuan province on May 12th 2008 and had resulted in severe damage.On the basis of the GPS observation data from the reference stations of Crustal Movement Observational Network of China,the continuous 31day TEC values over whole China were computed,examined and compared with two statistical analysis method,both the results showed that the ionospheric TEC anomaly did exist 1-6 days prior to the earthquake in the region,the apparent anomalous reduction of TEC occurred ...

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