Articles | Volume 21, issue 8
Nat. Hazards Earth Syst. Sci., 21, 2285–2297, 2021
https://doi.org/10.5194/nhess-21-2285-2021
Nat. Hazards Earth Syst. Sci., 21, 2285–2297, 2021
https://doi.org/10.5194/nhess-21-2285-2021

Research article 03 Aug 2021

Research article | 03 Aug 2021

Spatial and temporal subsidence characteristics in Wuhan (China), during 2015–2019, inferred from Sentinel-1 synthetic aperture radar (SAR) interferometry

Xuguo Shi et al.

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Cited articles

Bai, L., Jiang, L., Wang, H., and Sun, Q.: Spatiotemporal Characterization of Land Subsidence and Uplift (2009–2010) over Wuhan in Central China Revealed by TerraSAR-X InSAR Analysis, Remote Sensing, 8, 350, https://doi.org/10.3390/rs8040350, 2016. 
Bai, L., Jiang, L., and Wang, H.: Monitoring Ground Subsidence in Wuhan City with High-Resolution TerraSAR-X Images from 2013 to 2015, Journal of Geodesy and Geodynamics, 39, 832–836, 2019. 
Benattou, M. M., Balz, T., and Liao, M.: MEASURING SURFACE SUBSIDENCE IN WUHAN, CHINA WITH SENTINEL-1 DATA USING PSINSAR, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-3, 73–77, https://doi.org/10.5194/isprs-archives-XLII-3-73-2018, 2018. 
Chaussard, E., Amelung, F., Abidin, H., and Hong, S.-H.: Sinking cities in Indonesia: ALOS PALSAR detects rapid subsidence due to groundwater and gas extraction, Remote Sens. Environ., 128, 150–161, https://doi.org/10.1016/j.rse.2012.10.015, 2013. 
Chen, D.: Study on mechhanism and numerical simulation of Karst collapse in Qingling Town Wuhan City, PhD thesis, China University of Geosciences, Wuhan, China, 2016. 
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Short summary
We mapped the subsidence of Wuhan using Sentinel-1 synthetic aperture radar (SAR) images acquired during 2015–2019. Overall subsidence coincides with the distribution of engineered geological regions with soft soils, while the subsidence centers shifted with urban construction activities. Correlation between karst subsidence and concentrated rainfall was identified in Qingling–Jiangdi. Results indicate that interferometric SAR can be employed to routinely monitor and identify geohazards.
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