elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Comparison of optical and microphysical properties of pure Saharan mineral dust observed with AERONET Sun photometer, Raman lidar, and in situ instruments during SAMUM 2006

Müller, Detlef und Lee, K. H. und Gasteiger, J. und Tesche, Matthias und Weinzierl, Bernadett und Kandler, K. und Muller, T. und Toledano, C. und Otto, S. und Althausen, Dietrich und Ansmann, Albert (2012) Comparison of optical and microphysical properties of pure Saharan mineral dust observed with AERONET Sun photometer, Raman lidar, and in situ instruments during SAMUM 2006. Journal of Geophysical Research: Atmospheres, 117 (D07211), Seiten 1-25. DOI: 10.1029/2011jd016825. ISSN 0148-0227.

[img]
Vorschau
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
1MB

Offizielle URL: http://www.agu.org/pubs/crossref/2012/2011JD016825.shtml

Kurzfassung

The Saharan Mineral Dust Experiment (SAMUM) 2006, Morocco, aimed at the characterization of optical, physical, and radiative properties of Saharan dust. AERONET Sun photometer, several lidars (Raman and high-spectral-resolution instruments), and airborne and ground-based in situ instruments provided us with a comprehensive set of data on particle-shape dependent and particle-shape independent dust properties. We compare 4 measurement days in detail, and we carry out a statistical analysis for some of the inferred data products for the complete measurement period. Particle size distributions and complex refractive indices inferred from the Sun photometer observations and measured in situ aboard a research aircraft show systematic differences. We find differences in the wavelength-dependence of single-scattering albedo, compared to light-scattering computations that use data from SOAP (spectral optical absorption photometer). AERONET data products of particle size distribution, complex refractive index, and axis ratios were used to compute particle extinction-to-backscatter (lidar) ratios and linear particle depolarization ratios. We find differences for these parameters to lidar measurements of lidar ratio and particle depolarization ratio. Differences particularly exist at 355 nm, which may be the result of differences of the wavelength-dependent complex refractive index that is inferred by the methods employed in this field campaign. We discuss various error sources that may lead to the observed differences.

Dokumentart:Zeitschriftenbeitrag
Titel:Comparison of optical and microphysical properties of pure Saharan mineral dust observed with AERONET Sun photometer, Raman lidar, and in situ instruments during SAMUM 2006
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Müller, DetlefIfT, Leipzig
Lee, K. H.Gwangju Institute of Science and Technology, Gwangju, South Korea
Gasteiger, J.LMU, München
Tesche, MatthiasIfT, Leipzig
Weinzierl, BernadettDLR, IPA
Kandler, K.TU Darmstadt
Muller, T.IfT, Leipzig
Toledano, C.Univ. de Valladolid, Valladolid, E
Otto, S.Univ. of Leipzig
Althausen, DietrichIfT, Leipzig
Ansmann, AlbertIfT,Leipzig
Datum:2012
Erschienen in:Journal of Geophysical Research: Atmospheres
Referierte Publikation:Ja
In Open Access:Nein
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:117
DOI :10.1029/2011jd016825
Seitenbereich:Seiten 1-25
ISSN:0148-0227
Status:veröffentlicht
Stichwörter:SAMUM 2006 focused on the characterization of mineral dust properties, quality assurance tests show discrepancies for many data products, not only flaws in the used light-scattering models may be the cause
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Vorhaben Atmosphären- und Klimaforschung (alt), R - Vorhaben Atmosphären- und Klimaforschung, L - Klima, Wetter und Umwelt (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Atmosphärische Spurenstoffe
Hinterlegt von: Jana Freund
Hinterlegt am:21 Aug 2012 17:03
Letzte Änderung:13 Nov 2014 15:13

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.