气候变化领域集成服务门户(CCPortal): Evaluating China's fossil-fuel CO2 emissions from a comprehensive dataset of nine inventories

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DOI	10.5194/acp-20-11371-2020
	Evaluating China's fossil-fuel CO2 emissions from a comprehensive dataset of nine inventories
	Han P.; Zeng N.; Oda T.; Lin X.; Crippa M.; Guan D.; Janssens-Maenhout G.; Ma X.; Liu Z.; Shan Y.; Tao S.; Wang H.; Wang R.; Wu L.; Yun X.; Zhang Q.; Zhao F.; Zheng B.
发表日期	2020
ISSN	1680-7316
起始页码	11371
结束页码	11385
卷号	20 期号:19
英文摘要	China s fossil-fuel CO2 (FFCO2) emissions accounted for approximately 28% of the global total FFCO2 in 2016. An accurate estimate of China s FFCO2 emissions is a prerequisite for global and regional carbon budget analyses and the monitoring of carbon emission reduction efforts. However, significant uncertainties and discrepancies exist in estimations of China s FFCO2 emissions due to a lack of detailed traceable emission factors (EFs) and multiple statistical data sources. Here, we evaluated China s FFCO2 emissions from nine published global and regional emission datasets. These datasets show that the total emissions increased from 3.4 (3.0 3.7) in 2000 to 9.8 (9.2 10.4) Gt CO2 yr-1 in 2016. The variations in these estimates were largely due to the different EF (0.491 0.746 t C per t of coal) and activity data. The large-scale patterns of gridded emissions showed a reasonable agreement, with high emissions being concentrated in major city clusters, and the standard deviation mostly ranged from 10% to 40% at the provincial level. However, patterns beyond the provincial scale varied significantly, with the top 5% of the grid level accounting for 50 % 90% of total emissions in these datasets. Our findings highlight the significance of using locally measured EF for Chinese coal. To reduce uncertainty, we recommend using physical CO2 measurements and use these values for dataset validation, key input data sharing (e.g., point sources), and finer-resolution validations at various levels. © 2020 Copernicus GmbH. All rights reserved.
英文关键词	carbon budget; carbon dioxide; carbon emission; data set; fossil fuel; inventory; monitoring; uncertainty analysis; China
语种	英语
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/168961
作者单位	State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Department of Atmospheric and Oceanic Science and Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States; Goddard Earth Sciences Research and Technology, Universities Space Research Association, Columbia, MD, United States; State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; European Commission, Joint Research Centre (JRC, Directorate for Energy, Transport and Climate, Air and Climate Unit, Ispra (VA, Italy; Department of Earth System Science, Tsinghua University, Beijing, China; Water Security Research Centre, School of International Development, University of East Anglia, Norwich, United Kingdom; State Key Laboratory of Pollution Control and Resource Reuse, School of th...
推荐引用方式 GB/T 7714	Han P.,Zeng N.,Oda T.,et al. Evaluating China's fossil-fuel CO2 emissions from a comprehensive dataset of nine inventories[J],2020,20(19).
APA	Han P..,Zeng N..,Oda T..,Lin X..,Crippa M..,...&Zheng B..(2020).Evaluating China's fossil-fuel CO2 emissions from a comprehensive dataset of nine inventories.Atmospheric Chemistry and Physics,20(19).
MLA	Han P.,et al."Evaluating China's fossil-fuel CO2 emissions from a comprehensive dataset of nine inventories".Atmospheric Chemistry and Physics 20.19(2020).