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Proceedings Paper

Cloud microphysical characterization in the presence of a desert dust event over Portugal: a study based on atmospheric modeling and satellite remote sensing
Author(s): D. Santos; M. J. Costa; A. M. Silva; R. Salgado
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Paper Abstract

The aim of this work is the study of the Saharan desert dust storms effects on clouds properties and respective radiative forcing during a strong desert dust transport that occurred in 27, 28 and 29 May 2006. This is done by examining the results obtained from a mesoscale atmospheric model (MesoNH), over Portugal area and nearby Atlantic Ocean. The assessment of the aerosol properties provides information on the altitude of the aerosol layers and the determination of the cloud properties, influenced by the presence of desert dust aerosol, gives the information about the possible modifications that the cloud may suffer when they develop in an atmosphere where desert dust aerosols are present. The cloud radiative forcing (CRF) at the top of the atmosphere (TOA) is also estimated. The CRF at the TOA, in a dust free atmosphere, present lower values when compared with the TOA CRF over the regions where dust aerosols are present.

Paper Details

Date Published: 13 October 2008
PDF: 9 pages
Proc. SPIE 7107, Remote Sensing of Clouds and the Atmosphere XIII, 710714 (13 October 2008); doi: 10.1117/12.800336
Show Author Affiliations
D. Santos, Univ. de Évora (Portugal)
M. J. Costa, Univ. de Évora (Portugal)
A. M. Silva, Univ. de Évora (Portugal)
R. Salgado, Univ. de Évora (Portugal)


Published in SPIE Proceedings Vol. 7107:
Remote Sensing of Clouds and the Atmosphere XIII
Richard H. Picard; Adolfo Comeron; Klaus Schäfer; Aldo Amodeo; Michiel van Weele, Editor(s)

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