基于欧拉矢量的中国大陆局部速度场建模方法

The method of local velocity field modeling in China's Mainland based on Euler vector

针对中国大陆复杂的局部运动特征,研究中国大陆各省的板块运动欧拉矢量,并基于此建立中国大陆二维速度场模型。采用中国大陆构造环境监测网络1 397个区域站的坐标和速度,计算整体和各省的欧拉矢量,比较与NNR-NUVEL1A模型的速度场残差。结果表明,NNR-NUVEL1A模型仅消除中国大陆速度场的部分运动趋势,而中国大陆板块整体运动模型能够较好地展现整体运动趋势。

The Euler vectors of plate motion in China's Mainland provinces were studied,and a two-dimensional velocity field model was established aiming at the complex local movement characteristics of China's Mainland.The Euler vectors of the provinces were calculated,by using the coordinates and speeds of 1397 regional stations in the CMONOC.Then the velocity field residuals of the NNR-NUVEL1A model was compared,and the model was verified by the velocity of CMONOC CORS.The result shows that,the NNR-NUVEL1A model only deducts the partial movement trend of the velocity field in China's Mainland.The overall movement model of China's Mainland plate can better reflect the overall movement trend.