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Proceedings Paper

Subsidence monitoring in urban area using multitemporal InSAR data: a case study in China
Author(s): Yan Wang; Mingsheng Liao; Deren Li; Hui Lin
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Paper Abstract

During the last decades, land subsidence has occurred in three main river deltas of China, especially in some metropolitans. With the assistance of some geodetic technologies, such as digital leveling, GPS, total station, and so on, repeat-pass radar interferometry has the capability to monitor land subsidence in 3 dimensions with high accuracy. The potential and limitation of repeat-pass radar interferometry are still being evaluated till now. Considering the operational application of this technique, this paper describes applications of D-InSAR the urban subsidence of China. The case study with a small data stack in Hong Kong presents about 1cm height change in two test sites. The two test sites have mainly been investigated, and some of the key steps of this technique have been discussed in detail. The evolution of the D-InSAR and the future research involve more accurate and robust measurement with large data stacks in a long time series.

Paper Details

Date Published: 22 October 2004
PDF: 8 pages
Proc. SPIE 5574, Remote Sensing for Environmental Monitoring, GIS Applications, and Geology IV, (22 October 2004); doi: 10.1117/12.565518
Show Author Affiliations
Yan Wang, Wuhan Univ. (China)
Mingsheng Liao, Wuhan Univ. (China)
Deren Li, Wuhan Univ. (China)
Hui Lin, Chinese Univ. of Hong Kong (Hong Kong China)

Published in SPIE Proceedings Vol. 5574:
Remote Sensing for Environmental Monitoring, GIS Applications, and Geology IV
Manfred Ehlers; Francesco Posa, Editor(s)

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