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Proceedings Paper

Monitoring subsidence with short-term ASAR data in Shanghai
Author(s): Yuanyuan Pei; Hanmei Wang; Zhilei Fang; Minsheng Liao
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Paper Abstract

This work presents the application of PS-InSAR for monitoring large-coverage and dynamical ground subsidence. For the standard PS-InSAR technique, a large stack of InSAR images is necessary (usually more than 20 images). We present a method for the extraction of precise subsidence velocity from small InSAR image stacks. Using ENVISAT/ASAR data within one year duration differential interferograms with multi-master images are generated. A contour map derived from subsidence product shows a good consistency with leveling measurements. It indicates that using a small stack of SAR images acquired within a short-time is possible for monitor subsidence with a reasonable accuracy and reliability.

Paper Details

Date Published: 30 October 2009
PDF: 7 pages
Proc. SPIE 7494, MIPPR 2009: Multispectral Image Acquisition and Processing, 749421 (30 October 2009); doi: 10.1117/12.833333
Show Author Affiliations
Yuanyuan Pei, Wuhan Univ. (China)
Hanmei Wang, Shanghai Institute of Geological Survey (China)
Zhilei Fang, Shanghai Institute of Geological Survey (China)
Minsheng Liao, Wuhan Univ. (China)

Published in SPIE Proceedings Vol. 7494:
MIPPR 2009: Multispectral Image Acquisition and Processing
Faxiong Zhang; Faxiong Zhang, Editor(s)

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