Ground deformation monitoring using small baseline DInSAR technique: A case study in Taiyuan City from 2003 to 2009

Chinese Journal of Geophysics (Acta Geophysica Sinica)
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Abstract

DInSAR technique based on time series of SAR images has been very popular to monitor ground stow deformation in recent years such as permanent scatterers (PS) method small baseline subsets (SBAS) method and coherent targets (CT) method. By taking advantage of PS method and CT method in this paper small baseline DTnSAR technique is used to investigate the ground deformation of Taiyuan City Shanxi Province from 2003 to 2009 by using 23 ENVISAT ASAR images. The experiment results demonstrate that: (1) during this period four significant subsidence centers have been developed in Taiyuan namely Xiayuan Wujiabu Xiaodian Sunjiazhai. The largest subsidence center is Sunjiazhai with an average subsidence rate of -77. 28 mm/a; (2) The subsidence of the old center Wanbolin has sHowed down. And the subsidence in the northern region has stopped and some areas even rebounded. (3) The change of subsidence centers indicates that the control measures of "closing wells and reducing exploitation" taken by the Taiyuan government has achieved initial effects. (4) The experiment results have been validated with leveling data and the acouracy is 2. 90 mm which shows that the small baseline DInSAR technique can be used to monitor urban ground deformation.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Ground deformation monitoring using small baseline DInSAR technique: A case study in Taiyuan City from 2003 to 2009
Series title Chinese Journal of Geophysics (Acta Geophysica Sinica)
DOI 10.3969/j.issn.0001-5733.2011.03.006
Volume 54
Issue 3
Year Published 2011
Language Chinese
Contributing office(s) Earth Resources Observation and Science (EROS) Center
Description 8 p.
First page 673
Last page 680
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