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Constraining the heterogeneous loss of O 3 on soot particles with observations in jet engine exhaust plumes
Author(s) -
Gao R. S.,
Kärcher B.,
Keim E. R.,
Fahey D. W.
Publication year - 1998
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/98gl02505
Subject(s) - stratosphere , soot , plume , jet (fluid) , atmospheric sciences , ozone , environmental science , supersonic speed , reactivity (psychology) , aerosol , atmosphere (unit) , troposphere , meteorology , combustion , physics , chemistry , mechanics , medicine , alternative medicine , pathology
In situ measurements in the engine exhaust of a Concorde supersonic aircraft in the lower stratosphere are used to constrain heterogeneous reaction rates on soot particles in a plume model. Upper limit values are obtained for the product of the reactive uptake coefficients of O 3 and NO 2 and the mean surface area of individual soot particles using the model and the well‐established O 3 ‐N 2 O correlation in the lower stratosphere. The low reactivity value obtained for O 3 implies that soot reactions cannot account for ozone trends in the lower stratosphere.