Analysis of Land Surface Deformation in Chagan Lake Region Using TCPInSAR

Fengyan Wang, Qing Ding, Lei Zhang, Mingchang Wang and Qing Wang
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Fengyan Wang: College of Geo-Exploration Science and Technology, Jilin University, Changchun 130026, China
Qing Ding: College of Geo-Exploration Science and Technology, Jilin University, Changchun 130026, China
Lei Zhang: Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Hong Kong 999077, China
Mingchang Wang: College of Geo-Exploration Science and Technology, Jilin University, Changchun 130026, China
Qing Wang: College of Construction Engineering, Jilin University, Changchun 130026, China

Sustainability, 2019, vol. 11, issue 18, 1-20

Abstract: Due to earthquakes and large-scale exploitation of oil, gas, groundwater, and coal energy, large-scope surface deformation has occurred in Songyuan City, Jilin Province, China, and it is posing a serious threat to sustainable development, including urban development, energy utilization, environmental protection, and construction to improve saline–alkali land. In this study, we selected the Chagan Lake region, which is located in Songyuan City, as our research area. Using temporarily coherent point synthetic aperture radar interferometry (TCPInSAR), we obtained a time series of land surface deformation and the deformation rate in this area from 20 ALOS PALSAR images from 2006 to 2010. The results showed that the deformation rate in the Chagan Lake region ranged from −46.7 mm/year to 41.7 mm/year during the monitoring period. In three typical land cover areas of the Chagan Lake region, the subsidence in the wetland area was larger than that in the saline–alkali area, while the highway experienced a small uplift. In addition, surface deformation in lakeside areas with or without dykes was different; however, as this was mainly affected by soil freeze–thaw cycles and changes in groundwater level, the deformation showed a negative correlation with temperature and precipitation. By monitoring and analyzing surface deformation, we can provide a data reference and scientific basis for sustainable ecological and economic development in the Chagan Lake region and adjacent areas.

Keywords: ALOS PALSAR; TCPInSAR; Chagan Lake; land surface deformation; sustainable development (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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