L-and X-Band Multi-Temporal InSAR Analysis of Tianjin Subsidence

	L-and X-Band Multi-Temporal InSAR Analysis of Tianjin Subsidence
	Luo, Qingli 1; Perissin, Daniele 2; Zhang, Yuanzhi3 ; Jia, Youliang 4
刊名	REMOTE SENSING
	2014-09-01
卷号	6 期号:9 页码:7933-7951
关键词	subsidence monitoring L- and X-band multi-temporal InSAR (MT-InSAR) Permanent Scatterers (PS) Quasi-Permanent Scatterers (QPS)
英文摘要	When synthetic aperture radar interferometry (InSAR) technology is applied in the monitoring of land subsidence, the sensor band plays an important role. An X-band SAR system as TerraSAR-X (TSX) provides high resolution and short revisit time, but it has no capability of global coverage. On the other side, an L-band sensor as Advanced Land Observing Satellite-Phased Array L-band Synthetic Aperture Radar (ALOS-PALSAR) has global coverage and it produces highly coherent interferograms, but it provides much less details in time and space. The characteristics of these two satellites from different bands can be regarded as complementary. In this paper, we firstly present a possible strategy for X-band optimized acquisition planning combining with L-band. More importantly, we also present the multi-temporal InSAR (MT-InSAR) analysis results from 23 ALOS-PALSAR images and 37 TSX data, which show the complementarity of L-and X-band allows measuring deformations both in urban and non-urban areas. Furthermore, the validation between MT-INSAR and leveling/GPS has been carried out. The combination analysis of L-and X-band MT-InSAR results effectively avoids the limitation of X-band, providing a way to define the shape and the borderline of subsiding center and helps us to understand the subsidence mechanism. Finally, the geological interpretation of the detected subsidence center is given.
收录类别	SCI
语种	英语
WOS记录号	WOS:000343093800004
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/6547]
专题	国家天文台_月球与深空探测研究部
作者单位	1.Tianjin Univ, Ctr Remote Sensing, Tianjin 300072, Peoples R China 2.Purdue Univ, Sch Civil Engn, W Lafayette, IN 47907 USA 3.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 4.Tianjin Inst Surveying & Mapping, Tianjin 3000381, Peoples R China
推荐引用方式 GB/T 7714	Luo, Qingli,Perissin, Daniele,Zhang, Yuanzhi,et al. L-and X-Band Multi-Temporal InSAR Analysis of Tianjin Subsidence[J]. REMOTE SENSING,2014,6(9):7933-7951.
APA	Luo, Qingli,Perissin, Daniele,Zhang, Yuanzhi,&Jia, Youliang.(2014).L-and X-Band Multi-Temporal InSAR Analysis of Tianjin Subsidence.REMOTE SENSING,6(9),7933-7951.
MLA	Luo, Qingli,et al."L-and X-Band Multi-Temporal InSAR Analysis of Tianjin Subsidence".REMOTE SENSING 6.9(2014):7933-7951.