摘要
通过处理重庆GPS观测网2008年2月—2010年10月的观测数据,得到该地区12个测站的汶川地震同震位移、地震前后跨断层基线时间序列,及相对于WUHN站的水平运动场和区域无整体旋转基准下的速度场。结果表明,重庆地区的同震水平位移最大达到24 mm,最小达到7 mm;汶川地震后重庆地区地壳运动整体平稳。
By processing the observation data of the GPS network in Chongqing from February,2008 to October,2010,the following data were obtained： the coseismic displacement of 12 GPS stations in this area,the time series of cross-fault baseline length before and after Wenchuan earthquake,the horizontal movement field of Chongqing GPS stations related to WUHN and the horizontal movement rates of Chongqing under the regional NNR frame.The results show that the maximum of the coseismic horizontal displacement in Chongqing is 24 mm,and the minimum is 7 mm.After that event,the crustal movement in Chongqing has been steady as a whole.
出处
《大地测量与地球动力学》
CSCD
北大核心
2011年第6期54-57,共4页
Journal of Geodesy and Geodynamics
基金
重庆市科技攻关项目(CSTC
2008AB0095)
关键词
汶川地震
同震位移
GPS
水平位移场
地壳运动
Wenchuan earthquake
coseismic displacement
GPS
horizontal movement rate field
crustal movement
