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In-situ observations of young contrails – overview and selected results from the CONCERT campaign

Voigt, Christiane and Schumann, U. and Jurkat, Tina and Schäuble, D. and Schlager, H. and Petzold, A. and Gayet, J.-F. and Krämer, M. and Schneider, J. and Borrmann, S. and Schmale, J. and Jessberger, P. and Hamburger, T. and Lichtenstern, M. and Scheibe, M. and Gourbeyre, C. and Meyer, J. and Kübbeler, M. and Frey, W. and Kalesse, H. and Butler, T. and Lawrence, M.G. and Holzäpfel, F. and Arnold, E. and Wendisch, M. and Döpelheuer, A. and Gottschaldt, K. and Baumann, R. and Zöger, M. and Sölch, I. and Rautenhaus, M. and Dörnbrack1, A. (2010) In-situ observations of young contrails – overview and selected results from the CONCERT campaign. Atmospheric Chemistry and Physics, 10, pp. 9039-9056. DOI: 10.5194/acp-10-9039-2010.

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Official URL: http://www.atmos-chem-phys.net/10/9039/2010/

Abstract

Lineshaped contrails were detected with the research aircraft Falcon during the CONCERT – CONtrail and Cirrus ExpeRimenT – campaign in October/November 2008. The Falcon was equipped with a set of instruments to measure the particle size distribution, shape, extinction and chemical composition as well as trace gas mixing ratios of sulfur dioxide (SO2), reactive nitrogen and halogen species (NO, NOy, HNO3, HONO, HCl), ozone (O3) and carbon monoxide (CO). During 12 mission flights over Europe, numerous contrails, cirrus clouds and a volcanic aerosol layer were probed at altitudes between 8.5 and 11.6 km and at temperatures above 213 K. 22 contrails from 11 different aircraft were observed near and below ice saturation. The observed NO mixing ratios, ice crystal and soot number densities are compared to a process based contrail model. On 19 November 2008 the contrail from a CRJ-2 aircraft was penetrated in 10.1 km altitude at a temperature of 221 K. The contrail had mean ice crystal number densities of 125 cm−3 with effective radii reff of 2.6 μm. The presence of particles with r>50 μm in the less than 2 min old contrail suggests that natural cirrus crystals were entrained in the contrail. Mean HONO/NO (HONO/NOy) ratios of 0.037 (0.024) and the fuel sulfur conversion efficiency to H2SO4 (S#) of 2.9% observed in the CRJ-2 contrail are in the range of previous measurements in the gaseous aircraft exhaust. On 31 October 2010 aviation NO emissions could have contributed by more than 40% to the regional scale NO levels in the mid-latitude lowest stratosphere. The CONCERT observations help to better quantify the climate impact from contrails and will be used to investigate the chemical processing of trace gases on contrails.

Document Type:Article
Title:In-situ observations of young contrails – overview and selected results from the CONCERT campaign
Authors:
AuthorsInstitution or Email of Authors
Voigt, ChristianeDLR
Schumann, U.DLR
Jurkat, TinaDLR
Schäuble, D.DLR
Schlager, H.DLR
Petzold, A.DLR
Gayet, J.-F.Univ. Clermont Ferrand, F
Krämer, M.FZ Jülich
Schneider, J.DLR
Borrmann, S.Johannes-Gutenberg Univ. Mainz
Schmale, J.MPIC, Mainz
Jessberger, P.DLR
Hamburger, T.DLR
Lichtenstern, M.DLR
Scheibe, M.DLR
Gourbeyre, C.Univ. Clermont Ferrand, F
Meyer, J.FZ Jülich
Kübbeler, M.FZ Jülich
Frey, W.Johannes-Gutenberg Univ. Mainz
Kalesse, H.Johannes-Gutenberg Univ. Mainz
Butler, T.MPIC, Mainz
Lawrence, M.G.MPIC, Mainz
Holzäpfel, F.DLR
Arnold, E.DLR
Wendisch, M.Univ. Leipzig
Döpelheuer, A.DLR
Gottschaldt, K.DLR
Baumann, R.DLR
Zöger, M.DLR
Sölch, I.DLR
Rautenhaus, M.DLR
Dörnbrack1, A.DLR
Date:2010
Journal or Publication Title:Atmospheric Chemistry and Physics
Refereed publication:Yes
In Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:10
DOI:10.5194/acp-10-9039-2010
Page Range:pp. 9039-9056
Status:Published
Keywords:contrail, cirrus, ice, trace gases, SO2
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:L VU - Air Traffic and Environment (old)
DLR - Research area:Aeronautics
DLR - Program:L VU - Air Traffic and Environment
DLR - Research theme (Project):L - Low-Emission Air Traffic (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Institute of Propulsion Technology
Flight Operations > Flight Facility Oberpfaffenhofen
Deposited By: Jana Freund
Deposited On:16 Dec 2010 12:11
Last Modified:26 Mar 2013 13:25

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