Cart (Loading....) | Create Account
Close category search window
 

Application of ASAR PSI techonology to ground deformation detection in mega-cities of the Pearl River Delta Region in China

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Qing Zhao ; Inst. of Space & Earth Inf. Sci., Chinese Univ. of Hong Kong, Hong Kong, China ; Hui Lin ; Yuanzhi Zhang ; Liming Jiang

In this study, we present the application of Persistent Scatterer Interferometry (PSI) technology with ENVISAT (European satellite) Advanced Synthetic Aperture Radar (ASAR) images to detect the ground deformation in the Guangzhou urban area and Hong Kong International Airport (HKIA). A map of ground deformation rates in Guangzhou with scattered points shows that the maximum subsidence (rise) rate is up to -26 to -20 mma-1 (16-21 mma-1), implying the study area as an active zone of the ground deformation. Based on the point targets, a contour map of ground deformation rates was then generated. The map indicates that three major subsidence zones are located in the middle-west, east, and southwest of Guangzhou urban area, respectively. Six ground collapse accidents that occurred in Guangzhou during 2007-2008, within these subsidence zones, qualitatively validated the results. In the case of detecting ground deformation in HKIA, the ground truth data provided by the Airport Authority Hong Kong were used to correct the model, which is then applied to analyze the systematic errors existing in ASAR PSI-detected ground deformation rates. 2250 corrected ASAR PSI-detected points of annual ground deformation rates were used for the statistical analysis. The obtained results agree the Gaussian distribution well in our case studies.

Published in:

Geoinformatics, 2009 17th International Conference on

Date of Conference:

12-14 Aug. 2009

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.