基于PS-InSAR技术的廊坊市地面沉降监测研究  

Land Subsidence Detection based on PS-InSAR in Langfang

作　　者：雷坤超[1] 贾三满[1] 陈蓓蓓[2] 罗勇[2] 韩征[1] 

机构地区：[1]北京市水文地质工程地质大队,北京100195 [2]首都师范大学环境过程与数字模拟省部共建国家重点实验室培育基地,北京100195

出　　处：《遥感技术与应用》2013年第6期1114-1119,共6页Remote Sensing Technology and Application

基　　金：北京市科委项目(2131100005613022);中国地调局地质调查项目(水[2013]01-032-004)

摘　　要：随着城市化进程的加速发展，地面沉降危害不断加剧。以廊坊市城区为示范研究区，选取近5a的ENVISat卫星ASAR数据，采用永久散射体干涉测量（PS—InSAR）技术，提取廊坊市城区2003～2007年时间序列地面沉降形变信息，并对廊坊市地面沉降空间分布特征进行初步分析。研究结果表明：廊坊市城区年平均沉降速率在-19．2～18．7mm／a之间变化，沉降中心主要分布在城区北部地区，对城市基础设施及施工建设产生严重影响。With the ra per, taking Langfang pid development of urbanization, the damage of land subsidence is growing. In this pa- City as the study area and using permanent scatterer interferometry （PS-InSAR）tech- nology to get time series of land subsidence evolution characteristics from 2003 to 2007, then analyse the spatial distribution characteristics of Langfang land subsidence. The results showed that：the annual aver- age sedimentation rate of Langfang city is from -19. 2 mm/a to 18.7 turn/a, the settlement centers are mainly located in the northern region of urban area,and have a serious impact on city facilities and the con- struction.

关 键 词：地面沉降 永久散射体干涉测量 廊坊 

分 类 号：P642.26[天文地球—工程地质学]