Underground burning of Jharia coal mine (India) and associated surface deformation using InSAR data

International Journal of Applied Earth Observations and Geoinformation

Chen-Wei Lan¹  Shih-Yuan Lin²  Hye-Won Yun³  Jungrack Kim⁴  Ramesh P. Singh⁵ 

[1] Corresponding author.;Department of Land Economics, National Chengchi University, No.64, Sec. 2, Zhinan Rd., Wenshan Dist., Taipei City 116, Taiwan;Disaster Prevention Technology Research Center, SINOTECH Engineering Consultants, INC., No. 280, Xinhu 2nd Rd., Neihu Dist., Taipei City 114, Taiwan;RSS Hydro Research and Education Department, RSS-Hydro, Dudelange, Luxembourg;School of Life and Environmental Sciences, Schmid College of Science and Technology, Chapman University, Orange, CA, USA;

关键词: Underground fire;    Jharia coal mine;    InSAR;    Ground deformation;    Thermal mapping;   

DOI  :  

来源: DOAJ

【 摘 要 】

The underground burning in the Jharia coal mine (JCM) in India is a highly devastating environmental hazard inducing various adverse consequences. In the present study, we carried out time series analyses based on Interferometric Synthetic Aperture Radar (InSAR) and land surface temperature (LST) to study the environmental risk. First, a permanent scatterer (PS) time series analysis using Sentinel-1 images over three years was performed to detect the spatio-temporal distribution of ground deformation. Comparison of ground thermal anomaly clearly delineated the subsidence spots associated with the oxygen supply to combustion areas. On the contrary, few deformations were mapped showing pronounced uplift up to 10 mm/year compared with the horizontal creeping associated with underground fire activities. Such ground deformation and thermal anomaly patterns have never been observed. We modeled these observations from satellite data as a consequence of a strong pressurized source that induces surface migration in the coal mine and surrounding geological formations. Further, detailed investigations and modeling are required to mitigate the impact of hazards associated with the underground fires at different locations in the JCM.

【 授权许可】

Unknown