DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Porous aerosol in degassing plumes of Mt. Etna and Mt. Stromboli

Shcherbakov, V. and Jourdan, O. and Voigt, Christiane and Gayet, J.-F. and Schwarzenboeck, A. and Minikin, Andreas and Klingebiel, M. and Weigel, Ralf and Borrmann, S. and Jurkat, Tina and Kaufmann, Stefan and Schlage, Romy and Gourbeyre, C. and Febvre, G. and Lapyonok, T. and Molleker, S. and Frey, W. and Weinzierl, Bernadett (2016) Porous aerosol in degassing plumes of Mt. Etna and Mt. Stromboli. Atmospheric Chemistry and Physics (ACP), 16, pp. 11883-11897. Copernicus Publications. DOI: 10.5194/acp-16-11883-2016 ISSN 1680-7316

[img] PDF - Published version

Official URL: http://www.atmos-chem-phys.net/16/11883/2016/


Aerosols of the volcanic degassing plumes from Mt. Etna and Mt. Stromboli were probed with in situ instruments on board the Deutsches Zentrum für Luft- und Raumfahrt research aircraft Falcon during the contrail, volcano, and cirrus experiment CONCERT in September 2011. Aerosol properties were analyzed using angular-scattering intensities and particle size distributions measured simultaneously with the Polar Nephelometer and the Forward Scattering Spectrometer probes (FSSP series 100 and 300), respectively. Aerosols of degassing plumes are characterized by low values of the asymmetry parameter (between 0.6 and 0.75); the effective diameter was within the range of 1.5– 2.8 μm and the maximal diameter was lower than 20 μm. A principal component analysis applied to the Polar Nephelometer data indicates that scattering features of volcanic aerosols of different crater origins are clearly distinctive from angular-scattering intensities of cirrus and contrails. Retrievals of aerosol properties revealed that the particles were “optically spherical” and the estimated values of the real part of the refractive index are within the interval from 1.35 to 1.38. The interpretation of these results leads to the conclusion that the degassing plume aerosols were porous with air voids. Our estimates suggest that aerosol particles contained about 18 to 35% of air voids in terms of the total volume.

Item URL in elib:https://elib.dlr.de/107435/
Document Type:Article
Title:Porous aerosol in degassing plumes of Mt. Etna and Mt. Stromboli
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Shcherbakov, V.Univ. Blaise Pascal, Clermont-Ferrand, FUNSPECIFIED
Jourdan, O.Univ. Blaise Pascal, Clermont-Ferrand, FUNSPECIFIED
Gayet, J.-F.Univ. Blaise Pascal, Clermont-Ferrand, FUNSPECIFIED
Schwarzenboeck, A.Univ. Blaise Pascal, Clermont-Ferrand, FUNSPECIFIED
Minikin, AndreasDLR, IPAhttps://orcid.org/0000-0003-0999-4657
Klingebiel, M.Universität MainzUNSPECIFIED
Weigel, RalfUniv. MainzUNSPECIFIED
Borrmann, S.Inst. f. Atmospheric Physics, Univ. of Mainz, MainzUNSPECIFIED
Gourbeyre, C.Univ. Blaise Pascal, Clermont-Ferrand, FUNSPECIFIED
Febvre, G.LAMP, CNRS, Université Blaise Pascal, Clermont-Ferrand, FUNSPECIFIED
Lapyonok, T.Univ. des Sciences et Technologies de Lille, Villeneuve d'Ascq, FUNSPECIFIED
Molleker, S.Uni MainzUNSPECIFIED
Frey, W.MPI für Chemie, MainzUNSPECIFIED
Weinzierl, BernadettUniv. Wien, Aerosol Physics, AustriaUNSPECIFIED
Journal or Publication Title:Atmospheric Chemistry and Physics (ACP)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
DOI :10.5194/acp-16-11883-2016
Page Range:pp. 11883-11897
Publisher:Copernicus Publications
Keywords:volcanic aerosol, porosity
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Voigt, Dr.rer.nat. Christiane
Deposited On:10 Nov 2016 07:50
Last Modified:26 May 2020 17:44

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.