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一、引言 本区处于现代太平洋板块和印度洋-澳大利亚板块对欧亚板块联合推挤的收敛部位,具有一定的地球物理意义。 本文应用切比谢夫函数对广西沿海及毗邻地区的五个验潮站的观测资料逐一进行了拟合和滤波(图1),以推断地面的垂直运动。通过本区域精密水准测量和重力测量资料作对比分析的结果,海平面与垂直形变的变化基本上是一致的。同时初步获得该区域大地形变的综合图象。图象表明平面和形变测量资料有异常反映,需引起注意。
I. INTRODUCTION This area is in the convergence position of the joint push of the modern Pacific plate and the Indian Ocean-Australia plate with the Eurasian plate, and has certain geophysical significance. In this paper, the Chebyshev function is used to fit and filter the observed data of five tide gauge stations along the coast and adjacent areas of Guangxi (Figure 1) one by one to infer the vertical movement of the ground. Through the comparative analysis of precision leveling data and gravimetric data in this region, the changes of sea level and vertical deformation are basically the same. At the same time, a preliminary image of the deformation of the area is obtained. The images show abnormalities in the measurement of plane and deformation measurements that warrant attention.