气候变化领域集成服务门户(CCPortal): Aerosols from anthropogenic and biogenic sources and their interactions-modeling aerosol formation, optical properties, and impacts over the central Amazon basin

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DOI	10.5194/acp-21-6755-2021
	Aerosols from anthropogenic and biogenic sources and their interactions-modeling aerosol formation, optical properties, and impacts over the central Amazon basin
	Nascimento J.P.; Bela M.M.; Meller B.B.; Banducci A.L.; Rizzo L.V.; Liduvino Vara-Vela A.; Barbosa H.M.J.; Gomes H.; Rafee S.A.A.; Franco M.A.; Carbone S.; Cirino G.G.; Souza R.A.F.; Mckeen S.A.; Artaxo P.
发表日期	2021
ISSN	1680-7316
起始页码	6755
结束页码	6779
卷号	21 期号:9
英文摘要	The Green Ocean Amazon experiment-GoAmazon 2014-2015-explored the interactions between natural biogenic forest emissions from central Amazonia and urban air pollution from Manaus. Previous GoAmazon 2014-2015 studies showed that nitrogen oxide (NOx DNOCNO2) and sulfur oxide (SOx ) emissions from Manaus strongly interact with biogenic volatile organic compounds (BVOCs), affecting secondary organic aerosol (SOA) formation. In previous studies, ground-based and aircraft measurements provided evidence of SOA formation and strong changes in aerosol composition and properties. Aerosol optical properties also evolve, and their impacts on the Amazonian ecosystem can be significant. As particles age, some processes, such as SOA production, black carbon (BC) deposition, particle growth and the BC lensing effect change the aerosol optical properties, affecting the solar radiation flux at the surface. This study analyzes data and models SOA formation using the Weather Research and Forecasting with Chemistry (WRFChem) model to assess the spatial variability in aerosol optical properties as the Manaus plumes interact with the natural atmosphere. The following aerosol optical properties are investigated: Single scattering albedo (SSA), asymmetry parameter (gaer), absorption Angstrom exponent (AAE) and scattering Angstrom exponent (SAE). These simulations were validated using ground-based measurements at three experimental sites, namely the Amazon Tall Tower Observatory-ATTO (T0a), downtown Manaus (T1), Tiwa Hotel (T2) and Manacapuru (T3), as well as the U.S. Department of Energy (DOE) Gulfstream 1 (G-1) aircraft flights. WRFChem simulations were performed over 7 d during March 2014. Results show a mean biogenic SOA (BSOA) mass enrichment of 512% at the T1 site, 450% in regions downwind of Manaus, such as the T3 site, and 850% in areas north of the T3 site in simulations with anthropogenic emissions. The SOA formation is rather fast, with about 80% of the SOA mass produced in 3-4 h. Comparing the plume from simulations with and without anthropogenic emissions, SSA shows a downwind reduction of approximately 10 %, 11% and 6% at the T1, T2 and T3 sites, respectively. Other regions, such as those further downwind of the T3 site, are also affected. The gaer values increased from 0.62 to 0.74 at the T1 site and from 0.67 to 0.72 at the T3 site when anthropogenic emissions are active. During the Manaus plume-aging process, a plume tracking analysis shows an increase in SSA from 0.91 close to Manaus to 0.98 160 km downwind of Manaus as a result of SOA production and BC deposition. © 2021 Author(s). © 2021 EDP Sciences. All rights reserved.
语种	英语
scopus关键词	aerosol; anthropogenic source; atmospheric pollution; biogenic emission; optical property; source apportionment; urban area; volatile organic compound; Amazon Basin
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/246921
作者单位	Postgraduate Program in Climate and Environment (CLIAMB), National Institute for Amazonian Research, Amazonas State University, Manaus, AM, Brazil; Institute of Physics, University of Sao&tild; Paulo, Sao&tild; Paulo, SP, Brazil; Department of Atmospheric Sciences, Institute of Astronomy, Geophysics and Atmospheric Sciences, University of Sao&tild; Paulo, Sao&tild; Paulo, SP, Brazil; Center for Weather Forecasting and Climate Studies, National Institute for Space Research, Cachoeira Paulista, Sao&tild; Paulo, SP, Brazil; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; NOAA Earth System Research Laboratory, Boulder, CO, United States; Department of Environmental Sciences, Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of Sao&tild; Paulo, Sao&tild; Paulo, SP, Brazil; Department of Physics, Colorado State University, Fort Collins, CO, United States; Institute of Atmospheric Sciences, Federal Univer...
推荐引用方式 GB/T 7714	Nascimento J.P.,Bela M.M.,Meller B.B.,et al. Aerosols from anthropogenic and biogenic sources and their interactions-modeling aerosol formation, optical properties, and impacts over the central Amazon basin[J],2021,21(9).
APA	Nascimento J.P..,Bela M.M..,Meller B.B..,Banducci A.L..,Rizzo L.V..,...&Artaxo P..(2021).Aerosols from anthropogenic and biogenic sources and their interactions-modeling aerosol formation, optical properties, and impacts over the central Amazon basin.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(9).
MLA	Nascimento J.P.,et al."Aerosols from anthropogenic and biogenic sources and their interactions-modeling aerosol formation, optical properties, and impacts over the central Amazon basin".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.9(2021).