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http://dx.doi.org/10.7780/kjrs.2022.38.4.4

Activity of the Fushun West Open-pit Mine in China Observed by Sentinel-1 InSAR Coherence Images  

Jung, Da-woon (Department of Geophysics, Kangwon National University)
Lee, Hoonyol (Department of Geophysics, Kangwon National University)
Publication Information
Korean Journal of Remote Sensing / v.38, no.4, 2022 , pp. 365-374 More about this Journal
Abstract
Mining activity causes environmental pollution and geological hazards such as ground subsidence or landslide of which continuous monitoring is necessary. In this study, the activity on the Fushun West Open-Pit Mine (FWOPM), one of the largest open-pit coal mines in Asia located in Fushun, Liaoning Province, China, was analyzed by using a time-series Sentinel-1 InSAR coherence dataset. By using the difference between the two Digital Elevation Models (DEM) of the area, it was possible to confirm that there was a stockpiling activity in the western area of the FWOPM while excavation activity in the eastern area. By using RGB composite images using the yearly-averaged InSAR coherence images, the activity of the mine was confirmed by period, which was confirmed by Google Earth optical images. As a result, it was possible to confirm three landslides and the related activities on the northwest slope and the dumping activity on the west slope of FWOPM.
Keywords
Sentinel-1; InSAR coherence; Fushun west open-pit mine; Landslide;
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