基于D-InSAR的定陶区地表时序形变监测及分析  

Time Series Monitoring and Analysis of Surface Deformation in Dingtao District Based on D-InSAR

作　　者：孙晓丽 贾思水 付海德 高洁 肖翠平 SUN Xiaoli;JIA Sishui;FU Haide;GAO Jie;XIAO Cuiping(Shandong Zhengyuan Digital City Construction Co.,Ltd.,Yantai 264670,China)

机构地区：[1]山东正元数字城市建设有限公司,山东烟台264670

出　　处：《测绘与空间地理信息》2025年第3期27-30,共4页Geomatics & Spatial Information Technology

基　　金：山东省自然科学基金项目(ZR2019PD013)资助。

摘　　要：利用D-InSAR技术,处理了2017年6月到2021年12月的20景sentinel-1A数据,计算出定陶区平均地面沉降量和沉降速率。监测结果表明,定陶区存在4处沉降区,分别位于定陶区北部2处重点区域和东南部2处重点区域,平均沉降速率最大值约为49 mm/a。经过与影像和地质数据对比分析发现:北部区域由于施工工地和工厂建设,造成了地面沉降,需注意靠近机场的沉降变化;而定陶区东南部沉降则由于位于凫山断裂带上,且靠近高速路施工区域,后期在城市规划、道路规划和防灾减灾中应密切关注。Using D-InSAR technology,20 views of sentinel-1A data from June 2017 to December 2021 have been processed to calculate the average ground subsidence and subsidence rate in Dingtao district.The monitoring results show that there are four subsidence areas in Dingtao area,which are located in two key areas in the north and two key areas in the southeast of Dingtao area,the maximum average subsidence rate is about 49 mm/year.After comparing with the images and geological data,it is found that the land subsidence is caused by the construction site and factory construction in the northern region,and the subsidence change near the airport should be paid attention to;while the subsidence in the southeast of Dingtao district is located on the Fushan fault zone and close to the highway construction area,it should be paid close attention to in the later urban planning,road planning and disaster prevention and mitigation.

关 键 词：定陶区 合成孔径雷达差分干涉测量 地表形变 时序监测 

分 类 号：P225.2[天文地球—大地测量学与测量工程]