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《Journal of Geodesy and Geodynamics》 2012-01
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COMPARISON BETWEEN DYNAMIC AND STATIC ADJUSTMENT RESULTS FOR REPEATED LEVELLING NETWORKS

Luo Sanming1),Dong Yunhong1),Han Yueping1),Yuan Youxin2) and Li Tao2)( 1)First Monitoring and Application Center,CEA,Tianjin 300180 2)GNSS Research Center,Wuhan university,Wuhan 430079)  
The observations of repeated levelling network with both dynamic and static adjustment method were processed,and the two kinds of variation and velocity of each elevation point were obtained.The results show that the dynamic method is more reasonable than static one for describing characteristics and course of crustal vertical motion because the former is independent of reference mark,and takes the time factor acquired data into account.The results from static adjustment,however,the variation,accuracy and velocity of unknown marks will vary with the location of reference mark,and a constraint numerical value will occur in results.This submerges or transfers the possible deformation information contained in raw data.It is suitable to make use of dynamic result for analyzing crustal vertical motion.
【Fund】: 地震行业科研专项重大项目(200908029);; 国家自然科学基金(40604002 40874003);; 中国地震局第一监测中心青年基金(200901)
【CateGory Index】: P207.2
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