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Summary of Proposal COA3305

TitleMonitoring and assessing civil infrastructureinstability in coastal reclamation areas with TerraSAR-X highresolution SAR Interferometry
Investigator SUN, Qishi - Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences
Team Member
Prof Jiang, Liming - Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences
Prof Lin, Hui - The Chinese University of Hong Kong, Institute of Space and Earth Information Science
Prof Wang, Hangsheng - Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences
Prof Chen, Fulong - Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences
Prof Shen, Qiang - Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences
Doctor Liu, Lin - Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences
Doctor Sun, Qishi - Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences
SummaryGround deformation is a common phenomenon in reclamation areas and is mostly caused bysettling of unconsolidated basements consolidationof reclaimed lands, which potentially poses a threat to security and stabilityof buildings, highways, airport runways, harbors, and underground facilities. TheTerraSAR-X Staring Spotlight SAR data with very high resolution have a greatpotential for monitoring the reclamation settlement which is characterized withdeformation regimes and non-linear subsidence rate. The primary goal of thisproposal is to contribute to evaluation of potential of this new TerraSAR-X datafor monitoring reclamation settlement in coastal areas of China, specificallythe subsidence of new-built large civil infrastructures (such as highways,metros, airport,seawall and high-speed railways). High-precision andgreat-details ground deformation results will be obtained by time-series InSAR analysistechniques such as Persistent Scatterer Interferometry (PSI) and DistributedScatteer Interferometry (DS-InSAR) from TerraSAR-X Staring spotlight images.Moreover, the resulted deformation will be inter-compared for PSI and DS-InSARmethods, and will be validated against available ground truth data such as theprecise leveling and GPS data. Lastly, an integrated analysisof multidisciplinary data, consisting of geological, geotechnical and SARinterferometric data, will carried out in order to study the spatial-temporalcharacteristics of the detected deformation and the possible causes.

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DLR 2004-2016