气候变化领域集成服务门户(CCPortal): Spaceborne Measurements of Formic and Acetic Acids: A Global View of the Regional Sources

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DOI	10.1029/2019GL086239
	Spaceborne Measurements of Formic and Acetic Acids: A Global View of the Regional Sources
	Franco B.; Clarisse L.; Stavrakou T.; Müller J.-F.; Taraborrelli D.; Hadji-Lazaro J.; Hannigan J.W.; Hase F.; Hurtmans D.; Jones N.; Lutsch E.; Mahieu E.; Ortega I.; Schneider M.; Strong K.; Vigouroux C.; Clerbaux C.; Coheur P.-F.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:4
英文摘要	Formic (HCOOH) and acetic acids (CH3COOH) are the most abundant carboxylic acids in the Earth's atmosphere and key compounds to aqueous-phase chemistry. Here we present the first distributions of CH3COOH retrieved from the 2007–2018 satellite observations of the nadir-looking infrared atmospheric sounding interferometer (IASI), using a neural network-based retrieval approach. A joint analysis with the IASI HCOOH product reveals that the two species exhibit similar distributions, seasonality, and atmospheric burden, pointing to major common sources. We show that their abundance is highly correlated to isoprene and monoterpenes emissions, as well as to biomass burning. Over Africa, evidence is provided that residual smoldering combustion might be a major driver of the HCOOH and CH3COOH seasonality. Earlier seasonal enhancement of HCOOH at Northern Hemisphere middle and high latitudes and late seasonal secondary peaks of CH3COOH in the tropics suggest that sources and production pathways specific to each species are also at play. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Acetic acid; Earth atmosphere; Formic acid; Infrared spectroscopy; Monoterpenes; Neural networks; Remote sensing; Highly-correlated; IASI; Infrared atmospheric sounding interferometers; Northern Hemispheres; Production pathways; Satellite observations; Satellite remote sensing; Smoldering combustion; Atmospheric chemistry; acetic acid; aqueous solution; artificial neural network; biomass burning; combustion; formic acid; IASI; infrared spectroscopy; remote sensing; satellite data; seasonality; terpene; Africa
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170673
作者单位	Université libre de Bruxelles (ULB), Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Brussels, Belgium; Royal Belgian Institute for Space Aeronomy, Brussels, Belgium; Institute of Energy and Climate Research, Forschungszentrum Jülich GmbH, Jülich, Germany; LATMOS/IPSL, Sorbonne Université, UVSQ, CNRS, Paris, France; National Center for Atmospheric Research, Boulder, CO, United States; Institute for Meteorology and Climate Research (IMK-ASF), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany; School of Chemistry, University of Wollongong, Wollongong, NSW, Australia; Department of Physics, University of Toronto, Toronto, ON, Canada; Institute of Astrophysics and Geophysics, University of Liège, Liège, Belgium
推荐引用方式 GB/T 7714	Franco B.,Clarisse L.,Stavrakou T.,et al. Spaceborne Measurements of Formic and Acetic Acids: A Global View of the Regional Sources[J],2020,47(4).
APA	Franco B..,Clarisse L..,Stavrakou T..,Müller J.-F..,Taraborrelli D..,...&Coheur P.-F..(2020).Spaceborne Measurements of Formic and Acetic Acids: A Global View of the Regional Sources.Geophysical Research Letters,47(4).
MLA	Franco B.,et al."Spaceborne Measurements of Formic and Acetic Acids: A Global View of the Regional Sources".Geophysical Research Letters 47.4(2020).