Zhonghua He

Surface Subsidence as an Effective Indicator of Methane Emissions From Underground Coal Mines

Abstract Methane (CH 4 ) emissions from underground coal mining remain a major and uncertain anthropogenic source. This study tests whether surface subsidence, a direct consequence of underground mining, can serve as an indicator of CH 4 emissions. We use the Changzhi coal belt i...

UAV-Satellite Integration Reveals Continuous Methane Emission Variability from Chinese Coal Mine Ventilation Shafts

Abstract Satellite quantification of coal mine methane lacks validation for continuously operating ventilation systems with high temporal variability. We integrate 75 unmanned aerial vehicle (UAV) flights (30 successful, 13 days) with 6.5 years of satellite observations at a Chin...