气候变化领域集成服务门户(CCPortal): Unveiling Unprecedented Methane Hotspots in China's Leading Coal Production Hub: A Satellite Mapping Revelation

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DOI	10.1029/2024GL109065
	Unveiling Unprecedented Methane Hotspots in China's Leading Coal Production Hub: A Satellite Mapping Revelation
	Han, Ge; Pei, Zhipeng; Shi, Tianqi; Mao, Huiqin; Li, Siwei; Mao, Feiyue; Ma, Xin; Zhang, Xingying; Gong, Wei
发表日期	2024
ISSN	0094-8276
EISSN	1944-8007
起始页码	51
结束页码	10
卷号	51 期号:10
英文摘要	China is likely the world's largest anthropogenic source of methane emissions, with coal mine methane (CMM) being the predominant contributor. Here, we deploy 2 years of satellite observations to survey facility-level CMM emitters in Shanxi, the most prolific coal mining province in China. A total of 138 detected episodic events at 82 facilities are estimated to emit 1.20 (+0.24/-0.20, 95% CI) million tons of methane per year (Mt CH4/yr) during 2021-2023, roughly equivalent to 4.2 times the integrated flux from the Permian plumes and four times of the integrated flux from the Four Corners plumes, two of the world's largest hotspots for oil and gas methane emissions. This work reveals the heavy-tailed distribution characteristic of CMM emission sources for the first time, with 20% of emitters contributing approximately 50% of total emissions. Comparison with the Global Energy Monitor (GEM) inventory reveals that the GEM estimate is about 4.1 times our estimate. This study examines methane emissions from coal mines in Shanxi, China, identified as a significant source of global methane, a potent greenhouse gas. Using satellite data over 2 years, we found 138 detected episodic events at 82 facilities in Shanxi emitting an estimated 1.2 million tons of methane annually, far exceeding emissions from known global hotspots in the oil and gas sectors. Our analysis shows that a small percentage of these facilities contribute to the majority of emissions. The results, which challenge previous estimates from environmental monitoring organizations, underscore the need for direct, observational methods to accurately assess and address methane emissions. This work aims to guide efforts in mitigating climate change by identifying key areas for reducing methane release. Satellite data identify 82 major methane emitters in Shanxi, China, with high annual emissions of up to 1.2 Mt Top 20% of coal mines contribute to half of the region's total methane emissions Findings highlight the importance of direct measurements for accurate emission estimates
英文关键词	imaging spectrometer; methane emission; gas retrieval; point sources; coal mine
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001230691200001
来源期刊	GEOPHYSICAL RESEARCH LETTERS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304501
作者单位	Wuhan University; Wuhan University; Wuhan University; Universite Paris Cite; CEA; Centre National de la Recherche Scientifique (CNRS); Universite Paris Saclay; China Meteorological Administration; Wuhan University
推荐引用方式 GB/T 7714	Han, Ge,Pei, Zhipeng,Shi, Tianqi,et al. Unveiling Unprecedented Methane Hotspots in China's Leading Coal Production Hub: A Satellite Mapping Revelation[J],2024,51(10).
APA	Han, Ge.,Pei, Zhipeng.,Shi, Tianqi.,Mao, Huiqin.,Li, Siwei.,...&Gong, Wei.(2024).Unveiling Unprecedented Methane Hotspots in China's Leading Coal Production Hub: A Satellite Mapping Revelation.GEOPHYSICAL RESEARCH LETTERS,51(10).
MLA	Han, Ge,et al."Unveiling Unprecedented Methane Hotspots in China's Leading Coal Production Hub: A Satellite Mapping Revelation".GEOPHYSICAL RESEARCH LETTERS 51.10(2024).