GPS时间序列与强震预测研究

The study of the relation between the GPS time series and the strong shock

应用经验正交函数 (EOF)分析方法 ,对中国大陆连续观测的基准站水平位移时间序列进行分析。通过对 1 999年 3月份以来GPS 1 0 0 0周至 1 2 5 8周的原始时间序列的EOF分析、时间序列中除去长期位移速率后的EOF分析、及强震前半年时间段内的时间序列的EOF分析 。

The time series of horizontal displacements at fiducial stations of Chinese mainland by empirical orthogonal function (EOF)is analysed in this paper. Studied the time series between GPS week 1000 and GPS week 1258 since March of 1999 and removed the secular slip rates from the time series are also analysed. Meanwhile, the relation between the temporal and spatial distribution of the horizontal displacements fields and the strong shock by analyzing the time series of half a year before the strong shock.