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DOI	10.5194/acp-23-99-2023
	Heterogeneity and chemical reactivity of the remote troposphere defined by aircraft measurements - corrected
	Guo, Hao; Flynn, Clare M.; Prather, Michael J.; Strode, Sarah A.; Steenrod, Stephen D.; Emmons, Louisa; Lacey, Forrest; Lamarque, Jean-Francois; Fiore, Arlene M.; Correa, Gus; Murray, Lee T.; Wolfe, Glenn M.; St. Clair, Jason M.; Kim, Michelle; Crounse, John; Diskin, Glenn; DiGangi, Joshua; Daube, Bruce C.; Commane, Roisin; McKain, Kathryn; Peischl, Jeff; Ryerson, Thomas B.; Thompson, Chelsea; Hanisco, Thomas F.; Blake, Donald; Blake, Nicola J.; Apel, Eric C.; Hornbrook, Rebecca S.; Elkins, James W.; Hintsa, Eric J.; Moore, Fred L.; Wofsy, Steven C.
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	99
结束页码	117
卷号	23 期号:1 页码:19
英文摘要	The NASA Atmospheric Tomography (ATom) mission built a photochemical climatology of air parcels based on in situ measurements with the NASA DC-8 aircraft along objectively planned profiling transects through the middle of the Pacific and Atlantic oceans. In this paper we present and analyze a data set of 10 s (2 km) merged and gap-filled observations of the key reactive species driving the chemical budgets of O-3 and CH4 (O-3, CH4, CO, H2O, HCHO, H2O2, CH3OOH, C2H6, higher alkanes, alkenes, aromatics, NOx, HNO3, HNO4, peroxyacetyl nitrate, and other organic nitrates), consisting of 146 494 distinct air parcels from ATom deployments 1 through 4. Six models calculated the O-3 and CH4 photochemical tendencies from this modeling data stream for ATom 1. We find that 80 %-90 % of the total reactivity lies in the top 50 % of the parcels and 25 %-35 % in the top 10 %, supporting previous model-only studies that tropospheric chemistry is driven by a fraction of all the air. Surprisingly, the probability densities of species and reactivities averaged on a model scale (100 km) differ only slightly from the 2 km ATom 10 s data, indicating that much of the heterogeneity in tropospheric chemistry can be captured with current global chemistry models. Comparing the ATom reactivities over the tropical oceans with climatological statistics from six global chemistry models, we find generally good agreement with the reactivity rates for O-3 and CH4. Models distinctly underestimate O-3 production below 2 km relative to the mid-troposphere, and this can be traced to lower NOx levels than observed. Attaching photochemical reactivities to measurements of chemical species allows for a richer, yet more constrained-to-what-matters, set of metrics for model evaluation. This paper presents a corrected version of the paper published under the same authors and title (sans corrected ) as .
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:000907124800001
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/273283
作者单位	University of California System; University of California Irvine; Stockholm University; National Aeronautics & Space Administration (NASA); NASA Goddard Space Flight Center; National Center Atmospheric Research (NCAR) - USA; University of Colorado System; University of Colorado Boulder; Columbia University; University of Rochester; University System of Maryland; University of Maryland Baltimore; University of Maryland Baltimore County; California Institute of Technology; National Aeronautics & Space Administration (NASA); NASA Langley Research Center; Harvard University; Harvard University; University of Colorado System; University of Colorado Boulder; National Oceanic Atmospheric Admin (NOAA) - USA; National Oceanic Atmospheric Admin (NOAA) - USA; University of California System; University of California Irvine
推荐引用方式 GB/T 7714	Guo, Hao,Flynn, Clare M.,Prather, Michael J.,et al. Heterogeneity and chemical reactivity of the remote troposphere defined by aircraft measurements - corrected[J],2023,23(1):19.
APA	Guo, Hao.,Flynn, Clare M..,Prather, Michael J..,Strode, Sarah A..,Steenrod, Stephen D..,...&Wofsy, Steven C..(2023).Heterogeneity and chemical reactivity of the remote troposphere defined by aircraft measurements - corrected.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(1),19.
MLA	Guo, Hao,et al."Heterogeneity and chemical reactivity of the remote troposphere defined by aircraft measurements - corrected".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.1(2023):19.