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Summary of Proposal LAN2231

TitlePS-InSAR analysis of oil andgas fields over Xinjiang province in China
Investigator Xiong, Wenxiu - Central South University, Shool of Geosciences and Info-Physics
Team Members
Professor Li, Zhiwei - Central South University, School of Geosciences and Info-Physics
Lecture Feng, Guangcai - Central South University, School of Geosciences and Info-Physics
SummaryInSAR is a relatively new and powerfultechnology for observing the Earth surface.The wide spatial coverage, high resolution andcompetitive measurement accuracymake it a very unique technology for many applications, including the generation ofDEM and the mapping of ground settlementrelated to volcanoes, earthquakes,landslides and mankind activities. And D-InSARis a useful technology formeasuring surface deformation, but it isdifficult to get robust deformation resultsusing conventional differential InSAR methoddue to lack enough SAR images jointly used in SAR interferometry. PermanentScatterer (PS) D-InSAR technologywill be well used to monitor the temporalevolution of surface deformation in oil and gas fields. We have also applied foryour tandem-X data for more preciseDEM data.We will combine the data applied in this proposal and the previous tandem-X datato obtain deformation with better accuracy,which can be compared to the resultsusing conventional SRTM data. We propose to use Permanent Scatterer (PS) technologyto retrieve a temporaldeformation sequence of oil and gas fields inXinjiang province from a time series of SAR interferograms, the retrieved deformation sequence will reveal the developmentand evolution of the deformation, then we canobtain deformation models, and predictdeformation in the future by analyzing thedeformation models. Finally governmentcan take steps to avoid hazards resultingfrom the deformation. The study is mainly funded by: (1)“ModelingMinimum and Maximum DetectableDeformation Gradients of Interferometric SAR Measurements”,National ScienceFoundation of China;(2)“Three dimensional temporal-spatial phase unwrappingtechnique in PS-InSAR”, National ScienceFoundation of China.

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