Title
Anatomy of Subsidence in Tianjin from Time Series InSAR
Abstract
Groundwater is a major source of fresh water in Tianjin Municipality, China. The average rate of groundwater extraction in this area for the last 20 years fluctuates between 0.6 and 0.8 billion cubic meters per year. As a result, significant subsidence has been observed in Tianjin. In this study, C-band Envisat (Environmental Satellite) ASAR (Advanced Synthetic Aperture Radar) images and L-band ALOS (Advanced Land Observing Satellite) PALSAR (Phased Array type L-band Synthetic Aperture Radar) data were employed to recover the Earth's surface evolution during the period between 2007 and 2009 using InSAR time series techniques. Similar subsidence patterns can be observed in the overlapping area of the ASAR and PALSAR mean velocity maps with a maximum radar line of sight rate of similar to 70 mm center dot year(-1). The west subsidence is modeled for ground water volume change using Mogi source array. Geological control by major faults on the east subsidence is analyzed. Storage coefficient of the east subsidence is estimated by InSAR displacements and temporal pattern of water level changes. InSAR has proven a useful tool for subsidence monitoring and displacement interpretation associated with underground water usage.
Year
DOI
Venue
2016
10.3390/rs8030266
Remote Sensing
Keywords
Field
DocType
NORTH CHINA PLAIN,APERTURE RADAR INTERFEROMETRY,LAND SUBSIDENCE,SAR INTERFEROMETRY,MULTITEMPORAL INSAR,GROUND DEFORMATION,AQUIFER-SYSTEM,LAS-VEGAS,BASIN,VALLEY
Seismology,Radar,Satellite,Interferometric synthetic aperture radar,Synthetic aperture radar,Groundwater,Remote sensing,Phased array,Subsidence,Geology,Water level
Journal
Volume
Issue
ISSN
8
3
2072-4292
Citations 
PageRank 
References 
0
0.34
8
Authors
9
Name
Order
Citations
PageRank
Peng Liu1182.77
Qingquan Li21181135.06
Zhenhong Li316547.51
trevor b hoey420.71
Guoxiang Liu57511.17
Chisheng Wang6277.76
Zhongwen Hu7346.98
Zhou, Zhiwei800.34
Andrew Singleton971.24