Persistent scatterer InSAR (PS InSAR) is capable of detecting a certain number of persistent scatterers (PS) by analyzing the stability of amplitude and phase of images covering the same area. The persistent scatterers are used to model and analyze the deformation of target areas. Taking the Yanshan, an important metal mining area in Shangrao of Jiangxi Province, as an experimental area, this paper took 18 sentinel-1A images from 2016-08 to 2017-03 to analyze land subsidence caused by mining based on PSInSAR. Experimental results show that there is a heavy subsidence in Yongping Copper Mine. The maximum land subsidence velocity of Yongping Mine is -90 mm/y, and the area subsidence takes the similar distribution with the mining distribution. The area bound by Yiyang County and Hengfeng County has a weaker subsidence, with subsidence velocity of -20 mm/y. The experiment shows that PSInSAR is effective in monitoring metal mining area.
MA Fei-hu, JIANG Shan-shan, SUN Cui-yu
. Application of PSInSAR in Monitoring Land Subsidence in Yanshan Mining Area[J]. Journal of Applied Sciences, 2018
, 36(6)
: 969
-977
.
DOI: 10.3969/j.issn.0255-8297.2018.06.009
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