基于PSInSAR技术的常州地表形变监测研究

Changzhou Monitoring Surface Subsidence Using PSIn SAR

地面沉降已成为我国主要地质灾害之一,本文利用27景Envisat ASAR数据,采用点目标干涉测量（IPTA）技术,以常州市为实验地区,得到常州地区2007~2011年间地表形变沉降速率图,结果表明,常州市区存在多处严重沉降,最大沉降速率达-31 mm/a,表明IPTA技术在城市地面沉降监测中有广泛的应用前景。

Ground subsidence has become one of the major geological disasters. In this paper, based on 27 scene of Envisat ASAR da- ta and used the interferometer Point Target Analysis （IPTA） technology in Chang Zhou city for experiment area, getting the Chang Zhou region settlement of ground surface deformation rate between 2007 and 2011. The results show that existing several subsidence in Changzhou, the rate of subsidence was -31 mm/y, it proved IPTA technology has broad application prospects in urban land subsid- ence monitoring.