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Impacts of Dust on West African Climate During 2005 and 2006 : Volume 10, Issue 2 (05/02/2010)

By Camara, M.

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Book Id: WPLBN0003979526
Format Type: PDF Article :
File Size: Pages 34
Reproduction Date: 2015

Title: Impacts of Dust on West African Climate During 2005 and 2006 : Volume 10, Issue 2 (05/02/2010)  
Author: Camara, M.
Volume: Vol. 10, Issue 2
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2010
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Jenkins, G., Konare, A., & Camara, M. (2010). Impacts of Dust on West African Climate During 2005 and 2006 : Volume 10, Issue 2 (05/02/2010). Retrieved from http://www.ebooklibrary.org/


Description
Description: Département de Physique, Université de Ziguinchor, BP 523, Ziguinchor, Senegal. The aim of this study is to understand the impacts of Saharan dust outbreaks on West African climate using a 3-dimensional, hydrostatic, sigma vertical coordinate regional climate model (RegCM). We performed a simulation with the non aerosol version of the model (control case) followed by another simulation using the desert dust module (dust case) implemented in RegCM which includes emission, transport, gravitational settling, wet and dry removal and calculation of dust optical properties for 2005 and 2006. Dynamic and thermodynamic parameters obtained from both versions of the model are intercompared and validated with NCEP/NCAR reanalysis, African Monsoon Multidisciplinary Analysis (AMMA) program data and the Global Precipitation Climatology Project (GPCP) rainfall products. The spatial and temporal distribution of the Aerosol optical depth derived from the desert dust run is compared to available observed aerosol data such as the Aerosol Robotic Network (AERONET) program and satellites data.

Using radiosounding data and RegCM outputs, a case study of a strong dust outbreak showed the presence of a stable environment at Dakar, Sal and Nouadhibou stations.


Summary
Impacts of dust on West African climate during 2005 and 2006

Excerpt
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