基于欧拉矢量建立长三角区域速度场模型及其精度分析  

Establishment of Velocity Field Model in Yangtze River Delta Based on Euler Vector and Its Accuracy Analysis

作　　者：孙曼曼 朱波 SUN Manman;ZHU Bo(Zhejiang Mingkun Survey,Planning and Design Co.,Ltd.,Hangzhou 310012,China;Zhejiang Yuanwang Land Survey,Planning and Design Co.,Ltd.,Hangzhou 311203,China)

机构地区：[1]浙江明坤勘测规划设计有限公司,浙江杭州310012 [2]浙江远望土地勘测规划设计有限公司,浙江杭州311203

出　　处：《测绘与空间地理信息》2023年第11期160-162,共3页Geomatics & Spatial Information Technology

摘　　要：针对长三角地区地壳运动特征具有复杂性的问题,本文借助CMONOC地基观测数据基于欧拉矢量数学模型建立长三角地区速度场模型,并对该模型进行精度评估,结果表明:长三角地区整体呈现出由西北方向向东南方向运动的趋势,运动平均速度为:E方向32.09 mm/a、N方向-10.65 mm/a;通过精度评估得到:E、N方向的内外符合速度残差绝对值在3.5 mm/a之内,该模型为长三角地区大地测量参考框架动态维持和区域地壳形变分析提供参考。In view of the complexity of the characteristics of crustal movement in the Yangtze River Delta,this paper establishes the velocity field model of the Yangtze River Delta based on the Euler vector mathematical model with the help of CMONOC foundation observation data,and evaluates the accuracy of the model.The results show that the Yangtze River Delta shows a trend of northwest to Southeast movement as a whole,and the average velocity of the station is 32.09 mm/a in E direction and-10.65 mm/a in N direction.The absolute value of the internal and external coincidence velocity residual in the N,E direction is within 3.5 mm/a.This model provides a reference for the dynamic maintenance of the geodetic reference framework and regional crustal deformation analysis in the Yangtze River Delta.

关 键 词：欧拉矢量 长三角地区 速度场模型 中国大陆构造环境监测网络 

分 类 号：P22[天文地球—大地测量学与测量工程]