应用最小二乘配置建立地壳运动速度场与应变场的方法  

The method in establishing strain field and velocity field of crustal movement using least squares collocation

作　　者：江在森[1,2] 刘经南[1] 

机构地区：[1]武汉大学测绘学院,武汉430079 [2]中国地震局地震预测研究所,北京100036

出　　处：《地球物理学报》2010年第5期1109-1117,共9页Chinese Journal of Geophysics

基　　金：国家科技支撑计划重点项目(2006BAC01B02-02);国家自然科学基金项目(40974005)资助

摘　　要：简要论述了应用最小二乘配置原理,利用GPS资料建立水平运动速度场统一模型和应变场的方法.讨论了建立基于不同参考基准和几何变形含义的地壳运动模型及空间不同尺度和频率域应变场等问题.对中国地壳运动观测网络区域网资料进行了处理、分析,并分别以中国大陆区域整体及首都圈地区不同空间尺度的区域作为研究区对本文提出的模型和方法进行了实际应用和讨论.In this paper, a unified model and method to establish velocity field of horizontal movement and the strain field using GPS data based on the principle of least squares collocation is proposed. Meanwhile, some questions are discussed, which include the influence of different reference datum in describing velocity field and its geometric deformation meanings, and the influence of different scales of space and frequency domain in describing strain filed. Then, the GPS data obtained from the regional networks of Crustal Movement Observation Network of China is processed and analyzed. Lastly, the model proposed in this paper is used in the whole mainland and the capital region of China, which have very different spatial scales.

关 键 词：最小二乘配置 地壳运动 速度场统一模型 应变场 GPS 

分 类 号：P541[天文地球—构造地质学]