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DOI	10.5194/acp-23-711-2023
	Estimation of biomass burning emission of NO(2 )and CO from 2019-2020 Australia fires based on satellite observations
	Wan, Nenghan; Xiong, Xiaozhen; Kluitenberg, Gerard J.; Hutchinson, J. M. Shawn; Aiken, Robert; Zhao, Haidong; Lin, Xiaomao
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	711
结束页码	724
卷号	23 期号:1 页码:14
英文摘要	The bushfires that occurred in Australia in late 2019 and early 2020 were unprecedented in terms of their scale, intensity, and impacts. Using nitrogen dioxide (NO2) and carbon monoxide (CO) data measured by the Tropospheric Monitoring Instrument (TROPOMI), together with fire counts and fire radiative power (FRP) from MODIS, we analyzed the temporal and spatial variation of NO2 and CO column densities over three selected areas covering savanna and temperate forest vegetation. The delta NO2/delta CO emission ratio and emission factor were also estimated. The delta NO2/delta CO emission ratio was found to be 1.57 +/- 1.71 for temperate forest fire and ranged from 2.0 +/- 2.36 to 2.6 +/- 1.92 for savanna fire. For savanna and temperate forest fires, satellite-derived NOx emission factors were found to be 1.48 and 2.39 gkg(-1), respectively, whereas the CO emission factors are 107.39 and 126.32 gkg(-1), respectively. This study demonstrates that the large-scale emission ratio from the TROPOMI satellite for different biomass burnings can help identify the relative contribution of smoldering and flaming activities in a large region and their impacts on the regional atmospheric composition and air quality. This method can be applied to study the emissions from other large fires, or even the burning of fossil fuel in megacities, and their impact on air quality.
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:000917967700001
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/273003
作者单位	Kansas State University; National Aeronautics & Space Administration (NASA); NASA Langley Research Center; Kansas State University
推荐引用方式 GB/T 7714	Wan, Nenghan,Xiong, Xiaozhen,Kluitenberg, Gerard J.,et al. Estimation of biomass burning emission of NO(2 )and CO from 2019-2020 Australia fires based on satellite observations[J],2023,23(1):14.
APA	Wan, Nenghan.,Xiong, Xiaozhen.,Kluitenberg, Gerard J..,Hutchinson, J. M. Shawn.,Aiken, Robert.,...&Lin, Xiaomao.(2023).Estimation of biomass burning emission of NO(2 )and CO from 2019-2020 Australia fires based on satellite observations.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(1),14.
MLA	Wan, Nenghan,et al."Estimation of biomass burning emission of NO(2 )and CO from 2019-2020 Australia fires based on satellite observations".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.1(2023):14.