气候变化领域集成服务门户(CCPortal): Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A

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DOI	10.5194/acp-20-5995-2020
	Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A
	Mouchel-Vallon C.; Lee-Taylor J.; Hodzic A.; Artaxo P.; Aumont B.; Camredon M.; Gurarie D.; Jimenez J.-L.; Lenschow D.H.; Martin S.T.; Nascimento J.; Orlando J.J.; B. Palm B.; Shilling J.E.; Shrivastava M.; Madronich S.
发表日期	2020
ISSN	16807316
起始页码	5995
结束页码	6014
卷号	20 期号:10
英文摘要	The GoAmazon 2014/5 field campaign took place in Manaus, Brazil, and allowed the investigation of the interaction between background-level biogenic air masses and anthropogenic plumes. We present in this work a box model built to simulate the impact of urban chemistry on biogenic secondary organic aerosol (SOA) formation and composition. An organic chemistry mechanism is generated with the Generator for Explicit Chemistry and Kinetics of Organics in the Atmosphere (GECKO-A) to simulate the explicit oxidation of biogenic and anthropogenic compounds. A parameterization is also included to account for the reactive uptake of isoprene oxidation products on aqueous particles. The biogenic emissions estimated from existing emission inventories had to be reduced to match measurements. The model is able to reproduce ozone and NOx for clean and polluted situations. The explicit model is able to reproduce background case SOA mass concentrations but does not capture the enhancement observed in the urban plume. The oxidation of biogenic compounds is the major contributor to SOA mass. A volatility basis set (VBS) parameterization applied to the same cases obtains better results than GECKO-A for predicting SOA mass in the box model. The explicit mechanism may be missing SOA-formation processes related to the oxidation of monoterpenes that could be implicitly accounted for in the VBS parameterization. © 2020 BMJ Publishing Group. All rights reserved.
关键词	aerosol formation air mass atmospheric chemistry atmospheric modeling concentration (composition)emission inventory monoterpene oxidation parameterization urban area wet season Amazonas [Brazil]Brazil Manaus Gekkonidae
语种	英语
来源机构	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132021
推荐引用方式 GB/T 7714	Mouchel-Vallon C.,Lee-Taylor J.,Hodzic A.,et al. Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A[J]. Atmospheric Chemistry and Physics,2020,20(10).
APA	Mouchel-Vallon C..,Lee-Taylor J..,Hodzic A..,Artaxo P..,Aumont B..,...&Madronich S..(2020).Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A.,20(10).
MLA	Mouchel-Vallon C.,et al."Exploration of oxidative chemistry and secondary organic aerosol formation in the Amazon during the wet season: Explicit modeling of the Manaus urban plume with GECKO-A".20.10(2020).