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| 引用本文： | 吴伟伟,孟国杰,苏小宁,伍吉仓,胡新康,金红林.???????????????????о?????????????α?????[J].大地测量与地球动力学,2015,35(1):7-12. |
| 作者姓名： | 吴伟伟 孟国杰 苏小宁 伍吉仓 胡新康 金红林 |
| 作者单位： | 1 中国地震局地震预测研究所， 北京市复兴路63号， 100036 2 同济大学测绘与地理信息学院， 上海市四平路1239号， 200092 3 中国地震局第一监测中心， 天津市河东区耐火路7号， 300180 |
| 基金项目： | 国际科技合作项目（2010DFB20190）；国家自然科学基金（41174004）；中国地震局地震行业科研专项（200708030）；中国地震局地震预测研究所基本科研业务费（2012IES010300） |
| 摘 要： | ???????????????????????????????????????????????????????????????????????????????????о??????????????1999??2009???GPS????????о???????????????????????????????????????????α?????????????????????????????????150 km????????????????????????????滪???????????????仯???????????????????????????????????????????????-??????????????????????????Σ???????????????????????????б??Σ??????“???????”?????????????????α????????????????????????????????С??????α????????????????????????????????????????б???????????????????????????EW??????????????????????????????????????????к????????е????????????????????????????????????????? |
| 关 键 词： | ???????? GPS ?????? ??????? ????????? |
| 收稿时间： | 2014-01-20 |
Crustal Deformation of the North China District from GPS Measurements Based on Gaussian Distance Weighting Grids Method |
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| WU Weiwei,MENG Guojie,SU Xiaoning,WU Jicang,HU Xinkang,JIN Honglin.Crustal Deformation of the North China District from GPS Measurements Based on Gaussian Distance Weighting Grids Method[J].Journal of Geodesy and Geodynamics,2015,35(1):7-12. | |
| Authors: | WU Weiwei MENG Guojie SU Xiaoning WU Jicang HU Xinkang JIN Honglin |
| Institution: | 1 Institute of Earthquake Science,CEA, 63 Fuxing Road, Beijing 100036, China 2 College of Surveying and Gao\|Informatics,Tongji University, 1239 Siping Road, Shanghai 200092, China 3 First Crust Monitoring and Application Center, CEA, 7 Naihuo Road, Tianjin 300180, China |
| Abstract: | Based on Gaussian distance weighting theory, the paper developed a MATLAB program to compute variables as strain rate in the average distributed grid points in the North China district by using the GPS horizontal velocity derived from GPS observation data from 1997 to 2009. The computing results proved that it is reasonable to choose 150 km as the Gaussian smooth radius. The capital area displayed left\|lateral shear along the Zhang\|Bo fault zone, while the Tangshan-Qinhuangdao district had extensional performance in the north-south direction. The Shanxi belt presented right-lateral shear deformation overall, with tension deformation in the north part and extrusion movement in the south part. The deformation along the Tan-Lu fault zone was insignificant but with small shear movement in part of its north and south districts. The Ordos block was stable in the interior, but displayed left\|lateral shear accompanied by extension in the north rim and extrusion in the west rim. The Qinling block that is in the south rim of Ordos block displayed left\|lateral shear and right-lateral shear at its north and south sides respectively, along with extrusion and extension at its west and east sides. |
| Keywords: | north China GPS Gaussian distance weighting principle strain rate shear strain rate |
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