Monitoring Xi'an Land Subsidence Using Sentinel-1 Images and SBAS-InSAR Technology

doi:10.13474/j.cnki.11-2246.2017.0128

Abstract

Abstract: The Sentinel-1 data is currently the latest free SAR data and is well suited for land subsidence monitoring based on InSAR technology due to its 6-day revisit cycle. In this paper, Xi'an urban area and its surrounding area are used as the research area, and the time-series surface subsidence monitoring method based on Sentinel-1 data and SBAS-InSAR technique is explored. We obtain a detailed data processing process, which validity is corroborated by using the existing research data. The research shows that most of the regional surface deformation rate is in the range of-33 to 30mm/a from 2015 to 2016, and the maximum subsidence is about 75mm in the 228-day monitoring period, occurred in Yu-Hua Zhai that is the largest settlement center of Xi'an. Compared with the late 20th century, the intensity of subsidence decreased greatly, and the serious area of subsidence moved form the eastern suburbs to the southern suburbs of Xi'an, and the range of subsidence reduced.

Key words: Sentinel-1, SBAS-InSAR, land subsidence, Xi'an

CLC Number:

P258

ZHANG Yanmei, WANG Ping, LUO Xiang, ZHANG Qiao, CHEN Hui. Monitoring Xi'an Land Subsidence Using Sentinel-1 Images and SBAS-InSAR Technology[J]. 测绘通报, 2017, 0(4): 93-97.

References

[1] PAOLO B,GIANFRANCO F,RICCARDO L,et al.A New Algorithm for Surface Deformation Monitoring Based on Small Baseline Differential SAR Interferograms[J].IEEE Transactions on Geoscience and Remote Sensing,2002,40(11):2375-2383.
[2] 王如意.基于SBAS-InSAR的高分辨率地面沉降监测技术研究[D].北京:中国地质大学,2015.
[3] 罗铖.基于SBAS_InSAR的西安地表沉降监测[D].西安:长安大学,2012.
[4] 谢荣安,周元华,胡争.短基线集技术在地表形变监测中的应用研究[J].测绘通报,2015(8):70-73.
[5] 王宏宇,张庆涛,刘杰,等.利用短基线集技术监测地表形变[J].测绘科学,2015,40(10):123-127.
[6] 东方道尔信息技术股份有限公司.欧空局下一代卫星Sentinel系列[J].遥感信息,2011(6):119-120.
[7] 吴文豪,李陶,陈志国,等. Sentinel-1A卫星TOPS模式数据干涉处理[J].测绘通报,2016(2):42-45.
[8] 李永生,冯万鹏,张景发,等. 2014年美国加州纳帕Mw6.1地震断层参数的Sentinel-1A InSAR反演[J].地球物理学报,2015,58(7):2339-2349.
[9] 杨魁,杨建兵,江冰茹. Sentinel-1卫星综述[J].城市勘测,2015(2):24-27.
[10] 祝意青,王庆良,徐云马,等.西安市地面沉降时空演化特征及机理研究[J].地球学报,2005,26(1):67-70.
[11] 马静,张菊清.利用InSAR-GIS监测西安地面沉降的分析研究[J].测绘通报,2012(2):14-17.
[12] 赵超英,张勤,丁晓利.基于InSAR的西安地面沉降与地裂缝发育特征研究[J].工程地质学报,2009,17(3):389-393.
[13] 贺婧.基于D-InSAR技术的西安地面沉降监测[D].西安:长安大学,2013.
[14] 王心雨.高分辨率数据用于西安市地面沉降的InSAR监测研究[D].西安:长安大学,2015.
[15] 张勤,赵超英,丁晓利,等.利用GPS与InSAR研究西安市现今地面沉降与地裂缝时空演化特征[J].地球物理学报,2009,52(5):1214-1222.