节点文献
震前电离层TEC异常分析
ON IONOSPHERIC TEC ANOMALY BEFORE EARTHQUAKE
【摘要】 利用地壳运动观测网络基准站的GPS载波相位观测值,对两个震例连续50天的VTEC数据做了时间序列分析,并以每15天的VTEC值的1.5倍标准差作为上下限进行震例检验,验证了震前存在电离层异常扰动。
【Abstract】 On the basis of the GPS phase observation from the reference stations of crustal movement observation network,the continuous 50-day VTEC values before two Ms>6 earthquakes are analyzed,and the earthquake examples are tested with 1.5-muliple standard diviation of 15-day VTEC values as limited range.The results show that there were the ionospheric anomalies before the two related earthquakes.
【关键词】 地震;
地基GPS;
TEC(电子总含量);
电离层;
异常;
【Key words】 earthquake; ground-based GPS observation; TEC(Total election Content); ionosphere; anomaly;
【Key words】 earthquake; ground-based GPS observation; TEC(Total election Content); ionosphere; anomaly;
【基金】 地震科学联合基金(106006)
- 【文献出处】 大地测量与地球动力学 ,Journal of Geodesy and Geodynamics , 编辑部邮箱 ,2007年03期
- 【分类号】P315
- 【被引频次】20
- 【下载频次】190