大地测量与地球动力学2012，Vol.32Issue(2)：20-23,4.
利用高频GPS进行地震动态变形分析及地震定位
KINEMATIC ANALYSIS OF COSEISMIC DEFORMATION AND SEISMIC LOCATION USING HIGH-RATE GPS
摘要
Abstract
The high-rate GPS data from 8 stations in the 2011 Mw9. 0 Tohoku earthquake were processed by u-sing precise point positioning, and the displacement time series at each GPS site were analyzed to derive displacement waveforms for this event. The results indicate that the maximum displacement of GPS stations during the earthquake is larger than the permanent deformation. The kinematic solutions show that the maximum amplitude of east and north displacement is up to 5.9 m, 1.8m respectively, and horizontal displacements were towards the epicenter on the whole. At last, the epicenter and the S wave velocity is derived from the arrival time recorded by the GPS stations in the region.关键词
高频GPS/日本Mw 9.0地震/精密单点定位/同震变形/地震定位Key words
high-rate GPS/ Mw9.0 Tohoku earthquake/ precise point positioning/ coseismic displacement/ seismic location分类
天文与地球科学引用本文复制引用
吴继忠,吴文坛..利用高频GPS进行地震动态变形分析及地震定位[J].大地测量与地球动力学,2012,32(2):20-23,4.基金项目
精密工程与工业测量信息局重点实验室开放基金(PF2011-9) （PF2011-9）
地球空间环境与大地测量教育部重点实验室开放研究基金(10-01-12) （10-01-12）
江西省数字国土重点实验室开放基金(DLLJ201105) （DLLJ201105）
