Arid
DOI10.1016/j.atmosres.2012.09.024
Modeling Saharan desert dust radiative effects on clouds
Santos, D.1; Costa, M. J.1,2; Silva, A. M.1; Salgado, R.1,2
通讯作者Santos, D.
来源期刊ATMOSPHERIC RESEARCH
ISSN0169-8095
EISSN1873-2895
出版年2013
卷号127页码:178-194
英文摘要

This work aims at studying the Saharan desert dust storm effects on clouds. This is done through the investigation of the possible modifications that mineral desert dust aerosols may exert on clouds, modifying their properties and also through the estimation of the cloud radiative forcing in the presence of this type of aerosols, during strong desert dust events that occurred in the end of May 2006 and in the beginning of September 2007. The assessment of the cloud radiative forcing is made at a regional scale both at the top of the atmosphere (TOA) and at the surface levels. The results are obtained from numerical simulations with a mesoscale atmospheric model (MesoNH) over Portugal area and nearby Atlantic Ocean.


From the results obtained it is possible to observe that, for all days under study, a cooling effect is always found both at the TOA and surface levels. Also, for these two levels and for clouds developing in a dusty atmosphere, a more pronounced cooling effect (more negative cloud radiative forcing values) is found compared with the corresponding cloud radiative forcing values for clouds developing in a dust free atmosphere. (C) 2012 Elsevier B.V. All rights reserved.


英文关键词Atmospheric modeling Cloud and aerosol radiative effects Global warming Radiative transfer
类型Article
语种英语
国家Portugal
收录类别SCI-E
WOS记录号WOS:000319099800015
WOS关键词MINERAL DUST ; SCHEME ; AEROSOLS ; PARAMETERIZATION ; SIMULATION ; DEPOSITION ; CAMPAIGN ; CLIMATE ; SYSTEM ; REGION
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/176042
作者单位1.Univ Evora, Evora Geophys Ctr, P-7000 Evora, Portugal;
2.Univ Evora, Dept Phys, P-7000 Evora, Portugal
推荐引用方式
GB/T 7714
Santos, D.,Costa, M. J.,Silva, A. M.,et al. Modeling Saharan desert dust radiative effects on clouds[J],2013,127:178-194.
APA Santos, D.,Costa, M. J.,Silva, A. M.,&Salgado, R..(2013).Modeling Saharan desert dust radiative effects on clouds.ATMOSPHERIC RESEARCH,127,178-194.
MLA Santos, D.,et al."Modeling Saharan desert dust radiative effects on clouds".ATMOSPHERIC RESEARCH 127(2013):178-194.
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