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Regional dust model performance during SAMUM 2006

Haustein, K. and Perez, C. and Baldasano, J.M. and Müller, D. and Tesche, M. and Schladitz, A. and Esselborn, M. and Weinzierl, Bernadett and Kandler, K. and v. Hoyningen-Huene, W. (2009) Regional dust model performance during SAMUM 2006. Geophysical Research Letters, 36 (L03812), pp. 1-6. DOI: 10.1029/2008GL036463.

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Official URL: http://www.agu.org/journals/gl/

Abstract

Traditionally there has been a lack of intensive measurements directly over dust sources for validating the accuracy of dust models. Utilizing the valuable and unprecedented SAMUM 2006 field campaign dust dataset in North Africa, we assess the performance and discuss the limitations of a state-of-the-art dust regional model to reproduce the complex dust patterns encountered during the campaign. The DREAM model operational forecast version during SAMUM 2006 (OPER) and an updated model version (RESH) are run and compared. RESH reproduces the general Saharan dust pattern, whereas OPER shows limitations to quantitatively reproduce dust optical properties over sources and after long range transport simultaneously. Dust transport in RESH with enhanced number size bin distribution is proven to be more efficient and adequate. The modeled vertical extinction coefficient captures fairly well lidar observations. While particle number size distribution is consistently reproduced at surface level, we find significant underestimation in the middle troposphere for large particles. Synoptic scale meteorology remains insufficiently captured leading to significant errors in the location and intensity of dust emission and subsequent transport.

Document Type:Article
Title:Regional dust model performance during SAMUM 2006
Authors:
AuthorsInstitution or Email of Authors
Haustein, K.BSC, Barcelona, E
Perez, C.BSC, Barcelona, E
Baldasano, J.M.BSC, Barcelona, E
Müller, D.IfT, Leipzig
Tesche, M.IfT, Leipzig
Schladitz, A.IfT, Leipzig
Esselborn, M.UNSPECIFIED
Weinzierl, BernadettUNSPECIFIED
Kandler, K.Darmstadt Univ. of Technology, Darmstadt
v. Hoyningen-Huene, W.Univ. of Bremen, Bremen
Date:2009
Journal or Publication Title:Geophysical Research Letters
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:36
DOI:10.1029/2008GL036463
Page Range:pp. 1-6
Status:Published
Keywords:SAMUM; aerosol; regional dust modeling; DREAM model
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Dr.rer.nat. Bernadett Weinzierl
Deposited On:27 Jan 2009
Last Modified:12 Dec 2013 20:36

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