ITRF97参考框架下的中国大陆区域地壳板块运动背景场的建立及应用

基金项目: 国家自然科学基金资助项目(40004001);教育部优秀青年教师基金资助项目(大地测量反演理论及在中国地壳研究中的应用)。

详细信息

Construction and Application of Chinese Crustal Motion Background Field Based on ITRF97 Frame

1 School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079;
2 Presidential Secretariate, Wuhan University, Luojia Hill, Wuhan, China, 430072;
3 GPS Research Center, Wuhan University, 129 Luoyu Road, Wuhan, China, 430079

摘要: 利用中国地壳运动观测网络工程基准站和基本站的GPS实测结果,构造了一个ITRF参考框架下的、充分反映现今板块运动特征的、更为精确的现代中国大陆区域板块运动模型,介绍了这一工作的思路、方法和最终结果,并对速度场结果作了初步的解释。
- ITRF框架 /
- NNR-NUVELIA模型 /
- 板块运动
Abstract: In this paper,the observation speed of the basic stations and fiducial stations of the crustal deformation monitoring network of China are used to computer the background field of Chinese Mainland area.The result is different from the background provided by NNR-NUVELI-A、Sillard、Larson or some other models.Based on the background field of Chinese Mainland area,the absolute movement of Chineses Mainland plates are primary in the southwest.The Xi-malaya plate and Lasa plate move north,but the Qiangtang area,Chuandian plate and Dianxi plate turn clockwise.In the east of Qiangtang plate,the move trend is east,and then clockwise transition.In Chuandian plate the move trend is southeast.To Dianxi plate the move trend is mainly southwest.The value is approximately 10-25 mm/a,and the deformation is distinct.And in Erdous plate and its nabe,it turn anticlockwise,so we should also pay more attention to these areas.
- anomalous deformation /
- quasi-accurate detection /
- hypothesis test