珠江三角洲地区InSAR时序形变监测与分析

InSAR Time Series Deformation Monitoring and Analysis in the Peral River Delta

利用InSAR技术对珠江三角洲地区的地表沉降进行监测。针对一种基于小基线集InSAR(small-baseline subset,SBAS-InSAR)技术和永久散射体InSAR(persistent scattererInSAR,PS-InSAR)技术的改进时序InSAR监测技术对覆盖重点沉降区域的Sentinel-1卫星SAR影像数据集进行处理,得到了重点沉降区域的长时序(2018年1月至2019年5月)精细地表沉降监测结果。通过实地调研和信息采集,结合沉降区实际地质条件,对时序InSAR监测结果进行分析总结,为珠江三角洲地区经济发展和地面沉降监测提供重要的技术保障和支持。

An improved time-series InSAR technology was proposed to monitor the surface subsidence of the Pearl River Delta.This InSAR monitoring technology is based on the small-baseline subset InSAR(SBAS-InSAR)technology and the persistent scatterer In-SAR(PS-InSAR)technology,the Sentinel-1 satellite SAR image data set covering key settlement areas was processed,and the long time series(from January 2018 to may 2019)fine land subsidence monitoring results of key settlement areas were obtained.Then,field investigation and information collection were carried out,and combined with the actual geological conditions of the subsidence area,the time-series InSAR monitoring results were analyzed and summarized to provide important technical guarantee and support for the economic development and surface subsidence monitoring of the Pearl River Delta.