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Intercontinental Transport and Climatic Impact of Saharan and Sahelian Dust
Joint Authors
Silué, Siélé
Touré, N'Datchoh Evelyne
Konaré, Abdourahamane
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-24
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The Sahara and Sahel regions of Africa are important sources of dust particles into the atmosphere.
Dust particles from these regions are transported over the Atlantic Ocean to the Eastern American Coasts.
This transportation shows temporal and spatial variability and often reaches its peak during the boreal summer (June-July-August).
The regional climate model (RegCM 4.0), containing a module of dust emission, transport, and deposition processes, is used in this study.
Saharan and Sahelian dusts emissions, transports, and climatic impact on precipitations during the spring (March-April-May) and summer (June-July-August) were studied using this model.
The results showed that the simulation were coherent with observations made by the MISR satellite and the AERONET ground stations, within the domain of Africa (Banizoumba, Cinzana, and M’Bour) and Ragged-point (Barbados Islands).
The transport of dust particles was predominantly from North-East to South-West over the studied period (2005–2010).
The seasonality of dust plumes’ trajectories was influenced by the altitudes reached by dusts in the troposphere.
The impact of dusts on climate consisted of a cooling effect both during the boreal summer and spring over West Africa (except Southern-Guinea and Northern-Liberia), Central Africa, South-America, and Caribbean where increased precipitations were observed.
American Psychological Association (APA)
Touré, N'Datchoh Evelyne& Konaré, Abdourahamane& Silué, Siélé. 2012. Intercontinental Transport and Climatic Impact of Saharan and Sahelian Dust. Advances in Meteorology،Vol. 2012, no. 2012, pp.1-14.
https://search.emarefa.net/detail/BIM-450333
Modern Language Association (MLA)
Touré, N'Datchoh Evelyne…[et al.]. Intercontinental Transport and Climatic Impact of Saharan and Sahelian Dust. Advances in Meteorology No. 2012 (2012), pp.1-14.
https://search.emarefa.net/detail/BIM-450333
American Medical Association (AMA)
Touré, N'Datchoh Evelyne& Konaré, Abdourahamane& Silué, Siélé. Intercontinental Transport and Climatic Impact of Saharan and Sahelian Dust. Advances in Meteorology. 2012. Vol. 2012, no. 2012, pp.1-14.
https://search.emarefa.net/detail/BIM-450333
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-450333