NDLI: Application of persistent scatterer InSAR and GIS for urban subsidence monitoring

Content Provider	IEEE Xplore Digital Library
Author	Ng, A.H.-M. Linlin Ge
Copyright Year	2007
Description	Author affiliation: Univ. of New South Wales, Sydney (Ng, A.H.-M.; Linlin Ge)
Abstract	The purpose of this paper is to demonstrate the application of C-band ERS-1/2 and ENVISAT radar images to investigate the urban subsidence due to groundwater extraction. Cities in Australia without groundwater being over-extracted are compared to cities in Australia and China with groundwater being over-extracted. The persistent scatterer InSAR results are interpreted and compared to investigate the effect of groundwater extraction to urban subsidence. The GIS software is used to interpret the persistent scatterer InSAR results. The combined methods between persistent scatterer InSAR and GIS allow an integration of information from various sources and hence improve the efficiency for interpreting the data. A total of 15, 18 and 27 images of ERS-1/2 images acquired from August 1992-December 1996, April 1992-April 1997 and August 1992-July 2002 for Canberra, Sydney and Newcastle respectively are chosen to be investigated with persistent scatterer InSAR. Together with the above images, ten ERS-1/2 images from June 1992-December 1996 and nine ENVISAT images from December 2003-June 2006 acquired over Perth (Australia) and Northern China respectively are also chosen for similar investigation. The results show that the deformation rate from the cities with groundwater over-extracted, are significantly larger than the cities without groundwater over-extracted. The results have demonstrated the effect of groundwater extraction to urban subsidence.
Starting Page	1091
Ending Page	1094
File Size	1766544
Page Count	4
File Format	PDF
ISBN	9781424412112
DOI	10.1109/IGARSS.2007.4422991
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-23
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Synthetic aperture radar interferometry Geographic Information Systems Monitoring Australia Radar scattering Data mining Water resources Cities and towns Water pollution Information systems radar (SAR) interferometry Subsidence surface deformation synthetic aperture
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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