气候变化领域集成服务门户(CCPortal): Sensitivity of low-level clouds and precipitation to anthropogenic aerosol emission in southern West Africa: a DACCIWA case study

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DOI	10.5194/acp-22-3251-2022
	Sensitivity of low-level clouds and precipitation to anthropogenic aerosol emission in southern West Africa: a DACCIWA case study
	Deroubaix, Adrien; Menut, Laurent; Flamant, Cyrille; Knippertz, Peter; Fink, Andreas H.; Batenburg, Anneke; Brito, Joel; Denjean, Cyrielle; Dione, Cheikh; Dupuy, Regis; Hahn, Valerian; Kalthoff, Norbert; Lohou, Fabienne; Schwarzenboeck, Alfons; Siour, Guillaume; Tuccella, Paolo; Voigt, Christiane
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	3251
结束页码	3273
卷号	22 期号:5 页码:23
英文摘要	During the West African summer monsoon, pollutants emitted in urbanized coastal areas modify cloud cover and precipitation patterns. The Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa (DACCIWA) field campaign provided numerous aircraft-based and ground-based observations, which are used here to evaluate two experiments made with the coupled WRF-CHIMERE model, integrating both the direct and indirect aerosol effect on meteorology. During one well-documented week (1-7 July 2016), the impacts of anthropogenic aerosols on the diurnal cycle of low-level clouds and precipitation are analyzed in detail using high and moderate intensity of anthropogenic emissions in the experiments. Over the continent and close to major anthropogenic emission sources, the breakup time of low-level clouds is delayed by 1 hour, and the daily precipitation rate decreased by 7.5 % with the enhanced anthropogenic emission experiment (with high aerosol load). Despite the small modifications on daily average of low-level cloud cover (+2.6 %) with high aerosol load compared to moderate, there is an increase by more than 20 % from 14:00 to 22:00 UTC on hourly average. Moreover, modifications of the modeled low-level cloud and precipitation rate occur far from the major anthropogenic emission sources, to the south over the ocean and to the north up to 11 degrees N. The present study adds evidence to recent findings that enhanced pollution levels in West Africa may reduce precipitation.
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:000768776200001
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/273933
作者单位	Ecole des Ponts ParisTech; Institut Polytechnique de Paris; UDICE-French Research Universities; Universite Paris Saclay; UDICE-French Research Universities; Sorbonne Universite; Universite Paris Cite; Universite Paris Saclay; Centre National de la Recherche Scientifique (CNRS); Helmholtz Association; Karlsruhe Institute of Technology; Max Planck Society; IMT - Institut Mines-Telecom; IMT Nord Europe; Sage Group; Universite de Lille - ISITE; Universite de Lille; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute for Earth Sciences & Astronomy (INSU); Meteo France; Universite Clermont Auvergne (UCA); Helmholtz Association; German Aerospace Centre (DLR); Johannes Gutenberg University of Mainz; Universite de Toulouse; Universite Toulouse III - Paul Sabatier; Centre National de la Recherche Scientifique (CNRS); UDICE-French Research Universities; Universite Paris Cite; Universite Paris-Est-Creteil-Val-de-Marne (UPEC); UDICE-French Research Universities; Universite Paris Cite; Univer...
推荐引用方式 GB/T 7714	Deroubaix, Adrien,Menut, Laurent,Flamant, Cyrille,et al. Sensitivity of low-level clouds and precipitation to anthropogenic aerosol emission in southern West Africa: a DACCIWA case study[J],2022,22(5):23.
APA	Deroubaix, Adrien.,Menut, Laurent.,Flamant, Cyrille.,Knippertz, Peter.,Fink, Andreas H..,...&Voigt, Christiane.(2022).Sensitivity of low-level clouds and precipitation to anthropogenic aerosol emission in southern West Africa: a DACCIWA case study.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(5),23.
MLA	Deroubaix, Adrien,et al."Sensitivity of low-level clouds and precipitation to anthropogenic aerosol emission in southern West Africa: a DACCIWA case study".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.5(2022):23.