摘要
珠海市是珠三角地区地面沉降较严重地区,有必要开展地面沉降监测以掌握其变化特征。采用PS-InSAR方法计算珠海市2017年3月—2018年4月的Sentinel-1卫星影像数据,通过形变监测分析提取地面沉降空间分布和沉降速率等信息。分析结果表明,珠海市主要有斗门区白蕉镇—西部中心城区和平沙2个地面沉降区,与实地调查现状基本一致,说明基于PS-InSAR技术的地面沉降监测成果可信。
Zhuhai City is a serious area of ground subsidence in the Pearl River Delta region,it is necessary to monitor the ground subsidence and grasp its changing characteristics.In this paper,PS-InSAR method is used to obtain the data of Sentinel-1 satellite image from March 2017 to April 2018 in Zhuhai City,and then carry out morphological monitoring and analysis to extract the spatial distribution and settlement rate of land subsidence in Zhuhai City.The results show that the main distribution of the Town of Baijiao in the Doomen District-the western central urban area and the two ground subsidence areas in Pingsha,the results of which are basically consistent with the status quo of the field investigation,which shows that the PS-InSAR monitoring results are credible.
作者
赖波
江金进
刘佳
Lai Bo;Jiang Jinjin;Liu Jia(Guangdong Zhuhai Engineering Survey Institute,Zhuhai,Guangdong 519000;The First Geological Brigade of Guangdong Geological Bureau,Zhuhai,Guangdong 519000)
出处
《资源环境与工程》
2021年第2期241-244,259,共5页
Resources Environment & Engineering
基金
广东省珠海市地质灾害详细调查(1∶50000)(珠财采计X[20180807]-11975号)。
