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DOI	10.5194/acp-19-14657-2019
	The role of aerosol-radiation-cloud interactions in linking anthropogenic pollution over southern west Africa and dust emission over the Sahara
	Menut, Laurent 1; Tuccella, Paolo 2,3; Flamant, Cyrille 4; Deroubaix, Adrien 1,4; Gaetani, Marco 4,5
通讯作者	Menut, Laurent
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN	1680-7316
EISSN	1680-7324
出版年	2019
卷号	19 期号:23 页码:14657-14676
英文摘要	The aerosol direct and indirect effects are studied over west Africa in the summer of 2016 using the coupled WRF-CHIMERE regional model including aerosol-cloud interaction parameterization. First, a reference simulation is performed and compared with observations acquired during the Dynamics-aerosol-chemistry-cloud interactions in West Africa (DACCIWA) field campaign which took place in June and July 2016. Sensitivity experiments are also designed to gain insights into the impact of the aerosols dominating the atmospheric composition in southern west Africa (one simulation with halved anthropogenic emissions and one with halved mineral dust emissions). The most important effect of aerosol-cloud interactions is found for the mineral dust scenario, and it is shown that halving the emissions of mineral dust decreases the 2m temperature by 0.5K and the boundary layer height by 25m on a monthly average (July 2016) and over the Saharan region. The presence of dust aerosols also increases (decreases) the shortwave (longwave) radiation at the surface by 25Wm(-2). It is also shown that the decrease of anthropogenic emissions along the coast has an impact on the mineral dust load over west Africa by increasing their emissions in the Saharan region. It is due to a mechanism where particulate matter concentrations are decreased along the coast, imposing a latitudinal shift of the monsoonal precipitation and, in turn, an increase of the surface wind speed over arid areas, inducing more mineral dust emissions.
类型	Article
语种	英语
国家	France ; Italy
开放获取类型	Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000500962300002
WOS关键词	MINERAL DUST ; CHEMISTRY MODELS ; FIELD CAMPAIGN ; DIURNAL CYCLE ; PART 1 ; MONSOON ; METEOROLOGY ; PRECIPITATION ; DYNAMICS ; IMPACTS
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
EI主题词	2019-12-04
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311557
作者单位	1.Sorbonne Univ, Univ Paris Saclay, IPSL Res Univ,Ecole Polytech, Lab Meteorol Dynam,Ecole Normale Super,CNRS, Route Saclay, F-91128 Palaiseau, France; 2.Univ Aquila, CETEMPS, Dept Phys & Chem Sci, Laquila, Italy; 3.Univ Aquila, Ctr Excellence Telesening Environm & Model Predic, Laquila, Italy; 4.Sorbonne Univ, UVSQ, CNRS, LATMOS IPSL, F-75252 Paris, France; 5.Scuola Univ Super IUSS, Pavia, Italy
推荐引用方式 GB/T 7714	Menut, Laurent,Tuccella, Paolo,Flamant, Cyrille,et al. The role of aerosol-radiation-cloud interactions in linking anthropogenic pollution over southern west Africa and dust emission over the Sahara[J],2019,19(23):14657-14676.
APA	Menut, Laurent,Tuccella, Paolo,Flamant, Cyrille,Deroubaix, Adrien,&Gaetani, Marco.(2019).The role of aerosol-radiation-cloud interactions in linking anthropogenic pollution over southern west Africa and dust emission over the Sahara.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(23),14657-14676.
MLA	Menut, Laurent,et al."The role of aerosol-radiation-cloud interactions in linking anthropogenic pollution over southern west Africa and dust emission over the Sahara".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.23(2019):14657-14676.