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Mineral dust observed with AERONET Sun photometer, Raman lidar, and in situ instruments during SAMUM 2006: Shape-independent particle properties

Müller, Detlef and Weinzierl, Bernadett and Petzold, Andreas and Kandler, Konrad and Ansmann, Albert and Müller, T. and Tesche, Matthias and Freudenthaler, Volker and Esselborn, Michael and Heese, Birgit and Althausen, Dietrich and Schladitz, A. and Otto, S. and Knippertz, P. (2010) Mineral dust observed with AERONET Sun photometer, Raman lidar, and in situ instruments during SAMUM 2006: Shape-independent particle properties. Journal of Geophysical Research, 115 (D07202), pp. 1-18. DOI: 10.1029/2009JD012520.

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Official URL: http://www.agu.org/journals/jd/jd1007/2009JD012520/2009JD012520.pdf

Abstract

Aerosol Robotic Network (AERONET) Sun photometer observations were carried out at Ouarzazate, Morocco, during the Saharan Mineral Dust Experiment (SAMUM) 2006. Data from one measurement day, 19 May 2006, are used to derive particle optical and microphysical parameters with AERONET's latest version of lightâ��scattering model for nonâ��spherical particle geometry. In our analysis we also make use of a novel measurement channel at 1638 nm wavelength. We compare the results to data products obtained by airborne highâ��spectralâ��resolution lidar, several groundâ��based Raman lidar, and airborne and groundâ��based in situ measurement platforms. We chose that specific measurement day because the dust plume was vertically well mixed. Extinction coefficients from AERONET Sun photometer and lidar observations and in situ measurements agree well. ��ngstr�¶m exponents from Sun photometer and lidar are in close agreement, too. Airborne in situ measurements of dust particle size distributions show larger effective radii than inferred from the AERONET data. Complex refractive indices that are derived with the AERONET algorithm differ from the values obtained with different independent techniques employed in our study. The singleâ��scattering albedo was derived from the airborne observations of particle size distributions and complex refractive indices. Singleâ��scattering albedo differs to the value inferred from the AERONET data. The differences may be attributed to the different effective radii that we obtained from the various techniques. The differences between the data products from the various measurement platforms, however, cannot be generalized, as we could only test data for one measurement day. An analysis of additional measurements is under way.

Document Type:Article
Title:Mineral dust observed with AERONET Sun photometer, Raman lidar, and in situ instruments during SAMUM 2006: Shape-independent particle properties
Authors:
AuthorsInstitution or Email of Authors
Müller, DetlefGwangju Inst. of Science and Technology, Gwangju, South Korea
Weinzierl, BernadettDLR
Petzold, AndreasDLR
Kandler, KonradTU Darmstadt, Darmstadt
Ansmann, AlbertIfT, Leipzig
Müller, T.IfT, Leipzig
Tesche, MatthiasIfT, Leipzig
Freudenthaler, VolkerLMU, München
Esselborn, MichaelDLR
Heese, BirgitIfT, Leipzig
Althausen, DietrichIfT, Leipzig
Schladitz, A.IfT, Leipzig
Otto, S.DLR
Knippertz, P.Univ. Mainz
Date:2010
Journal or Publication Title:Journal of Geophysical Research
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:115
DOI:10.1029/2009JD012520
Page Range:pp. 1-18
Status:Published
Keywords:desert dust, remote sensing, dust size distribution, AERONET
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 Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Jana Freund
Deposited On:28 Apr 2011 13:11
Last Modified:23 Jan 2014 11:36

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