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Detection of Massive Negative Chemiions in the Exhaust Plume of a Jet Aircraft in Flight

Arnold, F. and Curtius, J. and Sierau, B. and Bürger, V. and Busen, R. and Schumann, U. (1999) Detection of Massive Negative Chemiions in the Exhaust Plume of a Jet Aircraft in Flight. Geophysical Research Letters, 26, pp. 1577-1580.

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

Abstract

Gaseous negative ions were mass spectrometrically measured in the exhaust plume of a jet aircraft in flight. Using a quadrupole mass spectrometer operated in a high-pass mode, it was found that by far most of the ions had mass numbers › 450 amu (atomic mass units) and number densities which markedly exceeded the number densities of ambient atmospheric ions. The latter were observed outside the exhaust plume and had mostly mass numbers ‹ 200 amu. Both their large numbers and large concentrations strongly suggest that the massive ions observed inside the plume are chemiions which were produced by the jet engines. The low fuel sulfur content (22 µg/g) suggests that the massive ions consist at least partly of species other than sulfuric acid. By interaction with exhaust gases these chemiions experienced rapid chemical transformation and growth in the early exhaust plume already at plume ages ‹ 0.4 s.

Item URL in elib:https://elib.dlr.de/9038/
Document Type:Article
Title:Detection of Massive Negative Chemiions in the Exhaust Plume of a Jet Aircraft in Flight
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Arnold, F.MPI f. Kernphysik, HeidelbergUNSPECIFIED
Curtius, J.MPI f. Kernphysik, HeidelbergUNSPECIFIED
Sierau, B.Inst. f. Troposphärenforschung, LeipzigUNSPECIFIED
Bürger, V.Greenpeace, HamburgUNSPECIFIED
Busen, R.UNSPECIFIEDUNSPECIFIED
Schumann, U.UNSPECIFIEDUNSPECIFIED
Date:1999
Journal or Publication Title:Geophysical Research Letters
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:26
Page Range:pp. 1577-1580
Status:Published
Keywords:exhaust plume, chemiions, jet aircraft
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 - Wake Vortices (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics
Deposited By: Löb, Ute
Deposited On:16 Sep 2005
Last Modified:31 Jul 2019 19:14

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