Abstract
Advantages of satellite synthetic aperture radar (SAR) interferometry techniques are demonstrated in three cases of monitoring: Charvak Dam (Uzbekistan) using SAR data from Envisat satellite, Three Gorges Dam (China) using data from Cosmo-SkyMed satellite constellation and Plover Cove Dam (Hong Kong) using dataset from TerraSAR-X satellite. Subsidence of dam bodies and seasonal dilation can be observed together with movements correlated with water level changes. The topic of separation between dam deformations and seasonal movements is discussed. Data have been processed using advanced multitemporal processing techniques implemented in Sarproz. These techniques show high potential for continuous monitoring of both dam deformations and surrounding slope instabilities.
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References
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Acknowledgments
This work has been supported in the framework of NATO: Science for Peace and Security programme (SfP-984430), National Basic Research Program of China (Grant Nos. 2007CB714405, 2006CB701300), National Natural Science Foundation of China (Grant No. 40721001), Three Gorges Region Geologic Disaster Protection Major Research Program (Grant No. SXKY3-6-4) and by the European Regional Development Fund in the IT4Innovations Centre of Excellence project (CZ.1.05/1.1.00/02.0070). This paper has been elaborated in the framework of the project New creative teams in priorities of scientific research, reg. no. CZ.1.07/2.3.00/30.0055, supported by Operational Programme Education for Competitiveness and co-financed by the European Social Fund and the state budget of the Czech Republic. SAR data were provided by ESA through projects C1P.13834, ESA-NRSCC Dragon II Cooperation Programme (ID 5297), by Infoterra Germany (through the cooperation with Ralf Duering, Beijing). Data of water level of reservoir were acquired from Water Supplies Department Hong Kong. Special thanks to Bill Yau for providing tidal informations from Hong Kong Observatory data. Processing has been performed using SarProz InSAR processing tool.
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Lazecký, M., Perissin, D., Zhiying, W., Ling, L., Yuxiao, Q. (2015). Observing Dam’s Movements with Spaceborne SAR Interferometry. In: Lollino, G., Manconi, A., Guzzetti, F., Culshaw, M., Bobrowsky, P., Luino, F. (eds) Engineering Geology for Society and Territory - Volume 5. Springer, Cham. https://doi.org/10.1007/978-3-319-09048-1_26
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DOI: https://doi.org/10.1007/978-3-319-09048-1_26
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