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| Titel |
Box and Gaussian plume models of the exhaust composition evolution of subsonic transport aircraft in- and out of the flight corridor |
| VerfasserIn |
I. L. Karol, Y. E. Ozolin, E. V. Rozanov |
| 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 ; 15, no. 1 ; Nr. 15, no. 1, S.88-96 |
| Datensatznummer |
250012576
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| Publikation (Nr.) |
 copernicus.org/angeo-15-88-1997.pdf |
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| Zusammenfassung |
| A box and a Gaussian plume model including
gas-phase photochemistry and with plume dispersion parameters estimated from the
few available plume observations are proposed and used for evaluation of
photochemical transformations of exhausts from a single subsonic transport
aircraft. The effects of concentration inhomogeneities in the plume cross
section on the photochemical sources and sinks in the plume are analyzed for
various groups of compounds. The influence of these inhomogeneities on the rate
and on the mass of ambient air entrainment into the plume are studied also by
comparing the box and the Gaussian plume model simulations during the first
hours of their "life''. Due to the enterance of HOx and
NOx from ambient air into the plume with rates varying from
the wind shear and turbulence conditions, the rate of emitted NOx
oxidation in the plume is dependent on these and also on the background
concentration levels of HOx and NOx. |
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