Horizontal Deformation Rate Analysis Based on Multiepoch GPS Measurements in Shanghai
Horizontal Deformation Rate Analysis Based on Multiepoch GPS Measurements in Shanghai
复制标题
基于多历元GPS测量的上海水平变形率分析
DOI：
10.1061/(asce)0733-9453(2008)134:4(132
复制
发表时间：
2008-11
期刊：
影响因子：
--
通讯作者：
Cai, Jianqing
中科院分区：
文献类型：
--
作者：
Chen, Junping;Grafarend, Erik;Wu, Jicang;Wang, Jiexian;Hu, Congwei;Cai, Jianqing
通过对多幅GPS测量值进行联合最小二乘平差，可以得到任意GPS纪念碑的速度。由此得到的速度被用来估计离散三角形中无限小应变假设下的应变率张量及其方差。本文利用2002-2005年在上海市开展的五次GPS运动的GPS测量数据，确定了每个GPS纪念碑的运动速度。然后用得到的场地相对速度计算水平应变率张量。对这些主应变率进行了分析，并对地质信息进行了比较。主应变率模式显示上海西南部有一条明显的西北向东南伸展带，与一条现存地质断裂--“大厂-周浦”断裂的新构造活动相吻合。
By applying integrated least-squares adjustment of multicampaigns geographic positioning system (GPS) measurements, the velocity of any GPS monument can be obtained. The resulting velocities are used to estimate the strain rate tensors and their variances under infinitesimal strain assumption in a discrete triangle. In this paper, the GPS measurements of five campaigns, which were carried out in Shanghai City from 2002 to 2005, are used to determine the velocity of each GPS monument. Then the horizontal strain rate tensors are calculated with the relative velocities of the sites obtained. The analysis of these principal strain rates together with a comparison of the geological information is performed. The patterns of the principal strain rates show a significant northwest to southeast extension zone in the southwestern part of Shanghai, which agrees well with the neo-tectonic activity of an existing geological fault, the so-called “Dachang–Zhoupu” fault.
登录
查看更多内容
影响因子：
4.9
作者：
Donghyun Kim;R. Langley;J. Bond;A. Chrzanowski
通讯作者：
Donghyun Kim;R. Langley;J. Bond;A. Chrzanowski
影响因子：
2
作者：
T. Sagiya;S. Miyazaki;T. Tada
通讯作者：
T. Sagiya;S. Miyazaki;T. Tada
影响因子：
--
作者：
J. C. Savage;W. Gan;J. Svarc
通讯作者：
J. C. Savage;W. Gan;J. Svarc
影响因子：
4.4
作者：
Jianqing Cai;E. Grafarend;B. Schaffrin
通讯作者：
Jianqing Cai;E. Grafarend;B. Schaffrin
影响因子：
--
作者：
C. Straub;H. Kahle;C. Schindler
通讯作者：
C. Straub;H. Kahle;C. Schindler