Monitoring ground deformation in the Hangjiahu Plain using InSAR technique

Hong'an Wu; Yonghong Zhang; Guangfei Luo; Weihua Mao; Yonghui Kang; Yanmin Zhu

doi:10.1117/12.2205314

14 December 2015 Monitoring ground deformation in the Hangjiahu Plain using InSAR technique

Hong'an Wu, Yonghong Zhang, Guangfei Luo, Weihua Mao, Yonghui Kang, Yanmin Zhu

Proceedings Volume 9815, MIPPR 2015: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications; 98151H (2015) https://doi.org/10.1117/12.2205314
Event: Ninth International Symposium on Multispectral Image Processing and Pattern Recognition (MIPPR2015), 2015, Enshi, China

Abstract

Affected by over-exploration of groundwater for a long time, the Hangjiahu Plain in Zhejiang province, southeast of China, has suffering serious ground subsidence during the past several decades. In this paper, we investigate the time series InSAR technique for the generation of subsidence maps over this plain. 25 Radarsat-2 images acquired from Jan 2012 to Nov 2014 are used. The results show that serious subsidence has taken place in the north and southeast of Jiaxing, the east and north of Huzhou, and the north of Hangzhou. Meanwhile some rebound occurs in the east of Jiaxing and the southeast of Huzhou. The results are compared with 35 levelling measurements. The standard deviation of the error between the two data is 3.01mm, which demonstrate that time series InSAR technique has good accuracy for subsidence monitoring.

Citation Download Citation

Hong'an Wu, Yonghong Zhang, Guangfei Luo, Weihua Mao, Yonghui Kang, and Yanmin Zhu "Monitoring ground deformation in the Hangjiahu Plain using InSAR technique", Proc. SPIE 9815, MIPPR 2015: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications, 98151H (14 December 2015); https://doi.org/10.1117/12.2205314

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