摘要
Sentinel-1A是欧空局"哥白尼计划"发射的首颗对地观测卫星,是目前现势性较好的SAR卫星,非常适合InSAR高精度地表形变监测。文中研究采用32景Sentinel-1A数据(2016-01—2017-11)进行时间序列SBAS处理,通过数据处理分析发现珠海市大部分地区平均沉降速率在-17.23~5.88mm/a,主城区较为稳定。部分区域存在许多明显的沉降漏斗,沉降幅度较大,最大可达-101.05mm/a,这与珠海市道路工程的修建密切相关。
Sentinel-1A is the first earth observation satellite of the ESA Copernicus program with a C-band SAR,which is currently well-perceived SAR satellite data and is very suitable for InSAR high-precision surface deformation monitoring.This paper uses 32 scenes of Sentinel-1A data(January 2016-November 2017)for time series SBAS processing.It’s found that the average sedimentation rate stays between-17.23 mm/a and 5.88mm/a through data processing analysis in most parts of Zhuhai City.So the main city is relatively stable.However,there are many obvious settlement funnels in some areas with a large range of settlement up to-101.05 mm/a,which is closely related to the construction of road projects in Zhuhai City.
作者
杨亚彬
李慧
YANG Yabin;LI Hui(Guangdong Geology Surveying and Mapping Institute,Guangzhou 510800,China;Guangdong University of Technology,Guangzhou 510006,China)
出处
《测绘工程》
CSCD
2018年第8期42-48,共7页
Engineering of Surveying and Mapping
