大地测量与地球动力学2017，Vol.37Issue(10)：1059-1064,6.DOI:10.14075/j.jgg.2017.10.015
地震对IGS基准站坐标时序噪声特性的影响
Influence of Earthquakes on the Noise Characteristics of IGS Reference Station Coordinate Time Series
摘要
Abstract
Focusing on the coordinate time series captured from 7 Japanese IGS reference stations in the three years before and after the March 11,2011,east Japan earthquake,the common mode error of this region is calculated.Furthermore,the optimal noise model of each station components before and after the earthquake are determined using CATS software,so the noise characteristics can be analyzed based on the common mode error of the east Japan earthquake.The conclusion is drawn that obvious periodicity shows in the common mode error in N,E,U direction,and the mean value in N,U direction increases 2.1 times and 1.5 times due to the earthquake.Using the spatial filtering method to eliminate the common mode error,the flicker noise in the horizontal direction is obviously weakened.Each component of IGS reference stations presents diverse noise characteristics,with no obvious regularity.The influence of the earthquake on reference station coordinate time series noise is mainly on BP,FN and RW characteristics,and the closer to the epicenter of the earthquake,the more obvious the effect will be.关键词
时间序列/共模误差/CATS软件/噪声模型/地震Key words
time series/common-mode error/CATS software/noise model/earthquake分类
天文与地球科学引用本文复制引用
余新平,成英燕,朱文娟,姚向东,闫忠宝,纪思源..地震对IGS基准站坐标时序噪声特性的影响[J].大地测量与地球动力学,2017,37(10):1059-1064,6.基金项目
National Key Research and Development Program of China,No.2016YFB0501405 （）
Natural Natural Science Foundation of China,No.41374014.国家重点研发计划(2016YFB0501405) （2016YFB0501405）
国家自然科学基金(41374014). （41374014）
