Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13996
Title: Ground subsidence monitoring in Hong Kong with satellite SAR interferometry
Authors: Ding, XL 
Liu, GX
Li, ZW
Li, ZL 
Chen, YQ 
Issue Date: 2004
Publisher: American Society for Photogrammetry and Remote Sensing
Source: Photogrammetric engineering and remote sensing, 2004, v. 70, no. 10, p. 1151-1156 How to cite?
Journal: Photogrammetric engineering and remote sensing 
Abstract: Ground settlement has long been a problem in Hong Kong, as most usable land in Hong Kong was reclaimed from the sea. Ground settlement may affect building structures and underground facilities such as water supply and sewage systems built on the land. Measurements of ground settlement can provide valuable data for assessing the impacts of ground settlement and for improving designs of future land reclamation projects. Experiments have been carried out to assess the performance of INSAR in the environment of Hong Kong especially the temporal decorrelations of SAR images and the potential atmospheric effects on INSAR measurements, and to use INSAR to study the ground settlement problem in Hong Kong. This study finds that the temporal decorrelation is an important problem in the heavily vegetated rugged areas as usually expected, and that the atmospheric effects can be very significant at times. Ground settlements measured over the airport and a residential area are presented. It can be seen from the results that both of the areas are still settling significantly many years after the reclamation.
URI: http://hdl.handle.net/10397/13996
ISSN: 0099-1112
EISSN: 2374-8079
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