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Proceedings Paper

Monitoring ground deformation in the Hangjiahu Plain using InSAR technique
Author(s): Hong'an Wu; Yonghong Zhang; Guangfei Luo; Weihua Mao; Yonghui Kang; Yanmin Zhu
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Paper 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.

Paper Details

Date Published: 14 December 2015
PDF: 7 pages
Proc. SPIE 9815, MIPPR 2015: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications, 98151H (14 December 2015); doi: 10.1117/12.2205314
Show Author Affiliations
Hong'an Wu, Chinese Academy of Surveying and Mapping (China)
Yonghong Zhang, Chinese Academy of Surveying and Mapping (China)
Guangfei Luo, Zhejiang Academy of Surveying and Mapping (China)
Weihua Mao, Zhejiang Academy of Surveying and Mapping (China)
Yonghui Kang, Chinese Academy of Surveying and Mapping (China)
Yanmin Zhu, Zhejiang Academy of Surveying and Mapping (China)


Published in SPIE Proceedings Vol. 9815:
MIPPR 2015: Remote Sensing Image Processing, Geographic Information Systems, and Other Applications
Jianguo Liu; Hong Sun, Editor(s)

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