气候变化领域集成服务门户(CCPortal): The Respective Roles of Wind Speed and Green Vegetation in Controlling Sahelian Dust Emission During the Wet Season

CCPortal

DOI	10.1029/2020GL089761
	The Respective Roles of Wind Speed and Green Vegetation in Controlling Sahelian Dust Emission During the Wet Season
	Bergametti G.; Marticorena B.; Rajot J.L.; Siour G.; Féron A.; Gaimoz C.; Coman A.; Chatenet B.; Coulibaly M.; Maman A.; Koné I.; Zakou A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	Based on 10 years of continuous measurements of wind speed, rainfall, and PM10 concentrations (i.e., concentrations of the particulate matter having a diameter lower than 10 μm) performed in two Sahelian stations, we examine how wind speed and vegetation interact during the wet season to control the dust concentration when it is due to local dust emissions. The results clearly show that the frequency of the high wind speeds is higher at the beginning of the wet season and is the main driver of the seasonal dust emission. During the second part of the wet season, the frequency of high wind speeds is much lower and, in addition, their efficiency for wind erosion and dust emission is strongly affected by the vegetation whose growth reduces progressively PM10 concentrations up to 80%. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Dust; Speed; Vegetation; Continuous measurements; Dust concentrations; Dust emission; High wind speed; Particulate Matter; PM10 concentration; Wind erosions; Wind speed; Wind; concentration (composition); dust; emission; particulate matter; seasonal variation; wet season; wind erosion; wind velocity
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/169398
作者单位	LISA (Laboratoire Interuniversitaire des Systèmes Atmosphériques), UMR CNRS 7583, Université Paris-Est-Créteil, Université de Paris, Institut Pierre Simon Laplace (IPSL), Créteil, France; iEES Paris (Institut d'Ecologie et des Sciences de l'Environnement de Paris), UMR IRD 242, Université Paris Est Créteil-Sorbonne Université-CNRS-INRA-Université de Paris, Bondy, France; Institut d'Economie Rurale (IER) Station de Recherche Agronomique de Cinzana, Bamako, Mali; Institut de Recherche pour le Développement (IRD), IRD-Niamey, Niamey, Niger
推荐引用方式 GB/T 7714	Bergametti G.,Marticorena B.,Rajot J.L.,et al. The Respective Roles of Wind Speed and Green Vegetation in Controlling Sahelian Dust Emission During the Wet Season[J],2020,47(22).
APA	Bergametti G..,Marticorena B..,Rajot J.L..,Siour G..,Féron A..,...&Zakou A..(2020).The Respective Roles of Wind Speed and Green Vegetation in Controlling Sahelian Dust Emission During the Wet Season.Geophysical Research Letters,47(22).
MLA	Bergametti G.,et al."The Respective Roles of Wind Speed and Green Vegetation in Controlling Sahelian Dust Emission During the Wet Season".Geophysical Research Letters 47.22(2020).