高校地质学报Issue(2)：333-340,8.
基于短基线子集（SBAS）干涉技术的地表时序沉降估计
Application of Small Baseline Subsets D-InSAR Technology to Estimate the Time Series of Land Subsidence
摘要
Abstract
At present, the geological disasters of ground subsidence occur in many cities of China, which are particularly severe in the Yangtze River Delta region where subsidence has long duration, large-scale causing huge economic losses. Wuxi is one of the typical cities of the large-scale land subsidence in Yangtze River Delta. In this article, we use ten ALOS PALSAR images, the time series of land subsidence of Wuxi city from January 12, 2007 to March 10, 2011 is estimated using the small baseline subsets D-InSAR technology. The results show that obvious subsidence occurred in the Hui Shan area, and the settlement in other areas is relatively stable with the average settlement about 15 mm; The settlement spatial pattern changed during 2007-2009, but the settlement rate increased from 2009 to 2010. Experiments prove that the short baseline subset (SBAS) interference in long time series of large-scale subsidence monitoring is feasible and effective. The results of monitoring ground subsidence provide an important scientific basis for disaster prevention and mitigation, and enable policy makers to make the right decisions. In the meantime, we can also trace the history of engineering activities according to the subsidence.关键词
InSAR/短基线子集/地面沉降/差分干涉图/大气相位Key words
InSAR/Small Baseline Subsets/land deformation/interference/atmospheric phase分类
天文与地球科学引用本文复制引用
王延霞,史照良,曹敏,刘波..基于短基线子集（SBAS）干涉技术的地表时序沉降估计[J].高校地质学报,2014,(2):333-340,8.基金项目
2013江苏省测绘科研项目（JSCHKY201311）；2012国土环境与灾害监测国家测绘局重点实验室基金项目（LEDM2012B07）；精密工程与工业测量国家测绘地理信息局重点实验室开放基金项目（PF2012-9）及江苏高校优势学科建设工程资助项目（SZBF2011-6-B35）联合资助 （）
