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| Titel |
Simulating the global transport of nitrogen oxides emissions from aircraft |
| VerfasserIn |
R. Sausen, I. Köhler |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 12, no. 5 ; Nr. 12, no. 5, S.394-402 |
| Datensatznummer |
250010785
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| Publikation (Nr.) |
 copernicus.org/angeo-12-394-1994.pdf |
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| Zusammenfassung |
| With the atmosphere general circulation model
ECHAM the passive transport of NOx emitted from global subsonic air
traffic and the NOx concentration change due to these emissions are
investigated. The source of NOx is prescribed according to an
aircraft emission data base. The sink of NOx is parameterized as an
exponential decay process with globally constant lifetime. Simulations in
perpetual January and July modes are performed. Both the resulting mean and the
standard deviation of the NOx mass mixing ratio are analysed. In
January horizontal dispersion is more pronounced and vertical mixing is smaller
than in July. In both cases the resulting quasi-stationary fields of the mass
mixing ratio display a pronounced zonal asymmetry. The variability accounts up
to 30% of the mean field. |
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