基于CORS数据的地表沉降研究  

Analysis of the Sedimentation of Earth's Surface Based on CORS Data

作　　者：张奇[1] 闫伟[1] 汪伟[1] 王文旭[1] 

机构地区：[1]天津市测绘院,天津300381

出　　处：《城市勘测》2014年第6期32-34,共3页Urban Geotechnical Investigation & Surveying

基　　金：大地测量与地球动力学国家重点实验室开放基金项目(SKLGED2013-4-6-E);国家自然科学基金项目(41174031;41474029)的联合资助

摘　　要：随着天津市城市建设的快速发展,一些大型工程正面临着由地表沉降带来的威胁。研究地表沉降对于保护天津地质环境、指导城市规划具有重要意义。基于此,处理了天津CORS（Continuous Operational Reference System）基准站2006年~2012年的观测数据,对基线处理结果进行了小波降噪以及Chebyshev多项式拟合,得到了地表沉降速率,并用水准成果对其进行了验证。With the rapid development of urban construction in Tianjin,a number of large- scale projects are facing the threat of the sedimentation of the Earth＇s surface. Study on the sedimentation of Earth＇s surface of Tianjin is of great significance for the geological environment protection and city planning of Tianjin. Based on this,in this paper,Tianjin CORS observing data from 2006 to 2012 was processed and the wavelet denoising method was append on the baseline results,the rate of the sedimentation of Tianjin Earth＇s surface was calculated by Chebyshev polynomial fitting and was verified with the sedimentation derived from leveling.

关 键 词：地表沉降 水准 CORS GAMIT 

分 类 号：P228.3[天文地球—大地测量学与测量工程] P642.26[天文地球—测绘科学与技术]