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Regional Saharan dust modelling during the SAMUM 2006 campaign

Heinold, Bernd and Tegen, Ina and Esselborn, Michael and Kandler, Konrad and Knippertz, Peter and Müller, Detlef and Schladitz, Alexander and Tesche, Matthias and Weinzierl, Bernadett and Ansmann, Albert and Althausen, Dietrich and Laurent, Benoit and Massling, Andreas and Müller, Thomas and Petzold, Andreas and Schepanski, Kerstin and Wiedensohler, Alfred (2009) Regional Saharan dust modelling during the SAMUM 2006 campaign. Tellus B - Chemical and Physical Meteorology, 61B, pp. 307-324. DOI: 10.1111/j.1600-0889.2008.00387.x.

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Official URL: http://www3.interscience.wiley.com/journal/118533053/home

Abstract

The regional dust model system LM-MUSCAT-DES was developed in the framework of the SAMUM project. Using the unique comprehensive data set of near-source dust properties during the 2006 SAMUM field campaign, the performance of the model system is evaluated for two time periods in May and June 2006. Dust optical thicknesses, number size distributions and the position of the maximum dust extinction in the vertical profiles agree well with the observations. However, the spatio-temporal evolution of the dust plumes is not always reproduced due to inaccuracies in the dust source placement by the model. While simulated winds and dust distributions are well matched for dust events caused by dry synoptic-scale dynamics, they are often misrepresented when dust emissions are caused by moist convection or influenced by small-scale topography that is not resolved by the model. In contrast to long range dust transport, in the vicinity of source regions the model performance strongly depends on the correct prediction of the exact location of sources. Insufficiently resolved vertical grid spacing causes the absence of inversions in the model vertical profiles and likely explains the absence of the observed sharply defined dust layers.

Document Type:Article
Title:Regional Saharan dust modelling during the SAMUM 2006 campaign
Authors:
AuthorsInstitution or Email of Authors
Heinold, BerndIfT, Leipzig
Tegen, InaIfT, Leipzig
Esselborn, MichaelUNSPECIFIED
Kandler, KonradDarmstadt Univ. of Technology, Darmstadt
Knippertz, PeterJohannes Gutenberg Univ. Mainz, Mainz
Müller, DetlefIfT, Leipzig
Schladitz, AlexanderIfT, Leipzig
Tesche, MatthiasIfT, Leipzig
Weinzierl, BernadettUNSPECIFIED
Ansmann, AlbertIfT, Leipzig
Althausen, DietrichIfT, Leipzig
Laurent, BenoitIfT, Leipzig
Massling, AndreasIfT, Leipzig
Müller, ThomasIfT, Leipzig
Petzold, AndreasUNSPECIFIED
Schepanski, KerstinIfT, Leipzig
Wiedensohler, AlfredIfT, Leipzig
Date:2009
Journal or Publication Title:Tellus B - Chemical and Physical Meteorology
Refereed publication:Yes
In Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:61B
DOI:10.1111/j.1600-0889.2008.00387.x
Page Range:pp. 307-324
Status:Published
Keywords:Saharan dust, LM-MUSCAT, SAMUM
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben LIDAR-Forschung und -Entwicklung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Michael Esselborn
Deposited On:17 Jan 2008
Last Modified:12 Dec 2013 20:29

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