【摘要】 利用中国地壳运动观测网络的GNSS连续观测站资料,解算了2010年4月14日玉树Ms7.1地震后,震中附近4个GNSS观测站(LHAS、LUZH、DLHA、WUSH)上空的TEC时间序列数据及中国区TEC二维分布的时间序列数据。从TEC时间序列图来看,其中LHAS、LUZH、WUSH站在4月1日当地时的下午TEC出现了正扰动;LHAS、LUZH和DLHA站在4月5日当地时的午夜TEC出现了正扰动;TEC的扰动自东向西漂移,其中5日的扰动区域相对较大,几乎横跨整个中国区域上空。更多还原

【Abstract】 Using vertical total electron content(VTEC) derived from the reference stations of Crustal Movement Observational Network of China to examine the ionospheric variations during the Ms7.1 Yushu earthquake occurred on April 14,2010,in China,the time series of TEC values over 4 GNSS stations(LHAS,LUZH,DLHA,WUSH) around the epicenter and the TEC values of 2D distribution over whole China was computed.The final results show that the ionospheric VTEC over 3 GNSS ststions(LHAS,LUZH,WUSH) increased in the afternoon of local time on April 1,and the VTEC values over 3 GNSS stations(LHAS,LUZH,DLHA) also increased in the midnight on April 5,both of these ionospheric anomalies drifted from east to west,and the latter acrossed the whole China.更多还原