气候变化领域集成服务门户(CCPortal): An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity

CCPortal

DOI	10.5194/acp-22-12093-2022
	An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity
	Carter, Therese S.; Heald, Colette L.; Kroll, Jesse H.; Apel, Eric C.; Blake, Donald; Coggon, Matthew; Edtbauer, Achim; Gkatzelis, Georgios; Hornbrook, Rebecca S.; Peischl, Jeff; Pfannerstill, Eva Y.; Piel, Felix; Reijrink, Nina G.; Ringsdorf, Akima; Warneke, Carsten; Williams, Jonathan; Wisthaler, Armin; Xu, Lu
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	12093
结束页码	12111
卷号	22 期号:18 页码:19
英文摘要	Fires emit a substantial amount of non-methane organic gases (NMOGs), the atmospheric oxidation of which can contribute to ozone and secondary particulate matter formation. However, the abundance and reactivity of these fire NMOGs are uncertain and historically not well constrained. In this work, we expand the representation of fire NMOGs in a global chemical transport model, GEOS-Chem. We update emission factors to Andreae (2019) and the chemical mechanism to include recent aromatic and ethene and ethyne model improvements (Bates et al., 2021; Kwon et al., 2021). We expand the representation of NMOGs by adding lumped furans to the model (including their fire emission and oxidation chemistry) and by adding fire emissions of nine species already included in the model, prioritized for their reactivity using data from the Fire Influence on Regional to Global Environments (FIREX) laboratory studies. Based on quantified emissions factors, we estimate that our improved representation captures 72 % of emitted, identified NMOG carbon mass and 49 % of OH reactivity from savanna and temperate forest fires, a substantial increase from the standard model (49 % of mass, 28 % of OH reactivity). We evaluate fire NMOGs in our model with observations from the Amazon Tall Tower Observatory (ATTO) in Brazil, Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) and DC3 in the US, and Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) in boreal Canada. We show that NMOGs, including furan, are well simulated in the eastern US with some underestimates in the western US and that adding fire emissions improves our ability to simulate ethene in boreal Canada. We estimate that fires provide 15 % of annual mean simulated surface OH reactivity globally, as well as more than 75 % over fire source regions. Over continental regions about half of this simulated fire reactivity comes from NMOG species. We find that furans and ethene are important globally for reactivity, while phenol is more important at a local level in the boreal regions. This is the first global estimate of the impact of fire on atmospheric reactivity.
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:000855024800001
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/273673
作者单位	Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT); National Center Atmospheric Research (NCAR) - USA; University of California System; University of California Irvine; National Oceanic Atmospheric Admin (NOAA) - USA; Max Planck Society; University of Colorado System; University of Colorado Boulder; University of Oslo; IMT - Institut Mines-Telecom; IMT Nord Europe; Universite de Lille - ISITE; Universite de Lille; University of Innsbruck; California Institute of Technology; Helmholtz Association; Research Center Julich; University of California System; University of California Berkeley
推荐引用方式 GB/T 7714	Carter, Therese S.,Heald, Colette L.,Kroll, Jesse H.,et al. An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity[J],2022,22(18):19.
APA	Carter, Therese S..,Heald, Colette L..,Kroll, Jesse H..,Apel, Eric C..,Blake, Donald.,...&Xu, Lu.(2022).An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(18),19.
MLA	Carter, Therese S.,et al."An improved representation of fire non-methane organic gases (NMOGs) in models: emissions to reactivity".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.18(2022):19.