摘要
本文以Sentinel-1A数据为基础,通过永久散射体雷达干涉技术(PS-InSAR)得到无锡中心城区2018年10月至2020年10月地表形变监测数据,分析无锡中心城区地表形变情况和时空分布特征。结果表明:无锡市中心城区整体呈现“西北部抬升,南部沉降”的特点。监测时段形变速率范围为-14~20 mm/a,累积形变量达到112.5 mm。沉降较大区域主要在滨湖区高凯路-大通路附近。地面抬升主要位于惠山区玉祁镇-前洲镇所构成的片状区域,及梁溪区华源小区-五爱家园-恒隆广场-崇安寺一带。而新吴区和锡山区整体趋于稳定。对无锡市的建设规划及灾害预防具有指导意义。
Based on Sentinel-1A data,persistent scatterer-interferometric synthetic aperture radar(PS-InSAR) was used to obtain the monitoring data of surface deformation in the downtown of Wuxi from October 2018 to October 2020,and the characteristics of surface deformation and spatio-temporal distribution in Wuxi were analyzed. The results showed that the downtown of Wuxi presented the characteristics of “uplift in the northwest and subsidence in the south”. The deformation rate in the monitoring period ranged from-14to20mm/a,and the cumulative shape variable reached 112.5mm. The large subsidence area was mainly near the Gaokai road-Big road in the lakeside area. The ground uplift was mainly located in the area of Yuqi Town-Qianzhou Town in Huishan District,and the area of Huayuan Community-Wuai Homeland-Henglong SquareChong′an Temple in Liangxi District. While Xinwu and Xishan District tent to be stable on the whole. It is of guiding significance to the construction planning and disaster prevention of Wuxi.
作者
欧阳双艳
周世健
周子琪
OUYANG Shuangyan;ZHOU Shijian;ZHOU Ziqi(Faculty of Geomatic,College East China University of Technology,Nanchang Jiangxi 330013,China;Nanchang Hangkong University,Nanchang Jiangxi 330063,China)
出处
《北京测绘》
2022年第2期194-199,共6页
Beijing Surveying and Mapping
基金
国家自然科学基金(42064001)。
关键词
地表形变
永久散射体雷达干涉技术
时序分析
surface deformation
persistent scatterer-interferometric synthetic aperture radar(PS-InSAR)
time series analysis
