Study of land subsidence and groundwater activity using SBAS time-series analysis

doi:10.6046/gtzyyg.2015.01.20

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Abstract The Datong Basin located at the northern end of the Fenwei Basin is a serious land subsidence area. The groundwater exploitation is an important factor responsible for the land subsidence. However, the study of the correlation between the groundwater activities and the land subsidence in this area is very insufficient. In order to investigated the relationship between the groundwater and the land subsidence, the authors monitored the characteristics of Datong land subsidence deformation by using small baseline subset(SBAS) InSAR technique with Envisat ASAR images. At the same time, the corresponding spatial-temporal relations between the ground subsidence center and the groundwater funnel were studied. Two models illustrating relationships between the ground subsidence and the groundwater funnel were built. The research shows that underground water exploitation is a major factor responsible for land subsidence in Datong; nevertheless, not all the underground water exploitation can cause land subsidence. This study has a good reference value for guiding the production and control of the underground water exploitation and land subsidence.

Keywords TanDEM-X scientific research plan bistatic SAR interferometry new SAR techniques global DEM mapping earth science applications

TP79

Issue Date: 08 December 2014

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	SUN Yafei
	JIANG Liming
	LIU Lin
	SUN Yongling
	WANG Hansheng

Cite this article:

SUN Yafei,JIANG Liming,LIU Lin, et al. Study of land subsidence and groundwater activity using SBAS time-series analysis[J]. REMOTE SENSING FOR LAND & RESOURCES, 2015, 27(1): 127-132.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2015.01.20 OR https://www.gtzyyg.com/EN/Y2015/V27/I1/127

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