气候变化领域集成服务门户(CCPortal): Updated Global Fuel Exploitation Inventory (GFEI) for methane emissions from the oil, gas, and coal sectors: evaluation with inversions of atmospheric methane observations

CCPortal

DOI	10.5194/acp-22-3235-2022
	Updated Global Fuel Exploitation Inventory (GFEI) for methane emissions from the oil, gas, and coal sectors: evaluation with inversions of atmospheric methane observations
	Scarpelli, Tia R.; Jacob, Daniel J.; Grossman, Shayna; Lu, Xiao; Qu, Zhen; Sulprizio, Melissa P.; Zhang, Yuzhong; Reuland, Frances; Gordon, Deborah; Worden, John R.
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	3235
结束页码	3249
卷号	22 期号:5 页码:15
英文摘要	We present an updated version of the Global Fuel Exploitation Inventory (GFEI) for methane emissions and evaluate it with results from global inversions of atmospheric methane observations from satellite (GOSAT) and in situ platforms (GLOBALVIEWplus). GFEI allocates methane emissions from oil, gas, and coal sectors and subsectors to a 0.1 degrees x 0.1 degrees grid by using the national emissions reported by individual countries to the United Nations Framework Convention on Climate Change (UNFCCC) and mapping them to infrastructure locations. Our updated GFEI v2 gives annual emissions for 2010-2019 that incorporate the most recent UNFCCC national reports, new oil-gas well locations, and improved spatial distribution of emissions for Canada, Mexico, and China. Russia's oil-gas emissions in its latest UNFCCC report (4.1 Tg a(-1) for 2019) decrease by 83% compared to its previous report while Nigeria's latest reported oil-gas emissions (3.1 Tg a(-1) for 2016) increase 7-fold compared to its previous report, reflecting changes in assumed emission factors. Global gas emissions in GFEI v2 show little net change from 2010 to 2019 while oil emissions decrease and coal emissions slightly increase. Global emissions from the oil, gas, and coal sectors in GFEI v2 (26, 22, and 33 Tg a(-1), respectively in 2019) are lower than the EDGAR v6 inventory (32, 44, and 37 Tg a(-1) in 2018) and lower than the IEA inventory for oil and gas (38 and 43 Tg a(-1) in 2019), though there is considerable variability between inventories for individual countries. GFEI v2 estimates higher emissions by country than the Climate TRACE inventory, with notable exceptions in Russia, the US, and the Middle East where TRACE is up to an order of magnitude higher than GFEI v2. Inversion results using GFEI as a prior estimate confirm the lower Russian emissions in the latest UNFCCC report but find that Nigeria's reported UNFCCC emissions are too high. Oil-gas emissions are generally underestimated by the national inventories for the highest emitting countries including the US, Venezuela, Uzbekistan, Canada, and Turkmenistan. Offshore emissions tend to be overestimated. Our updated GFEI v2 provides a platform for future evaluation of national emission inventories reported to the UNFCCC using the newer generation of satellite instruments such as TROPOMI with improved coverage and spatial resolution. This increased observational data density will be especially beneficial in regions where current inversion systems have limited sensitivity including Russia. Our work responds to recent aspirations of the Intergovernmental Panel on Climate Change (IPCC) to integrate top-down and bottom-up information into the construction of national emission inventories.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000768716000001
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/273830
作者单位	Harvard University; Harvard University; Sun Yat Sen University; Westlake University; Westlake University; National Aeronautics & Space Administration (NASA); NASA Jet Propulsion Laboratory (JPL); University of Edinburgh
推荐引用方式 GB/T 7714	Scarpelli, Tia R.,Jacob, Daniel J.,Grossman, Shayna,et al. Updated Global Fuel Exploitation Inventory (GFEI) for methane emissions from the oil, gas, and coal sectors: evaluation with inversions of atmospheric methane observations[J],2022,22(5):15.
APA	Scarpelli, Tia R..,Jacob, Daniel J..,Grossman, Shayna.,Lu, Xiao.,Qu, Zhen.,...&Worden, John R..(2022).Updated Global Fuel Exploitation Inventory (GFEI) for methane emissions from the oil, gas, and coal sectors: evaluation with inversions of atmospheric methane observations.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(5),15.
MLA	Scarpelli, Tia R.,et al."Updated Global Fuel Exploitation Inventory (GFEI) for methane emissions from the oil, gas, and coal sectors: evaluation with inversions of atmospheric methane observations".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.5(2022):15.