黄河三角洲区域地表形变监测研究

Study on Surface Deformation Monitoring in the Yellow River Delta Region

由于地壳运动、地下水使用及矿床开采等因素的影响,会造成地表的形变,特别是垂直(高程)方向影响更大。为了维持高程基准的现势性,本文提出了一种以InSAR地表形变监测和水准测量相结合的方法,实现地表形变区高程基准动态维持。并以黄河三角洲区域为例,对2种成果精度进行了对比验证,水准测量和InSAR监测结果基本相符,可实现2种技术手段融合以获取点、面综合的高程变化信息。

Due to crust movement,groundwater utilization and mineral mining,deformation of the earth surface will happen,especially in the vertical(elevation)direction.In order to maintain the current situation of the height datum,a method combining InSAR surface deformation monitoring and leveling has been proposed to realize dynamic maintenance of the elevation datum in the surface deformation area.Taking the Yellow River Delta and other areas as an example,the accuracy of the two results is compared and verified.The results of leveling and InSAR monitoring are basically consistent,and the integration of the two technical means can be realized to obtain comprehensive elevation change information of point and surface.