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| Titel |
Parameterization of subgrid plume dilution for use in large-scale atmospheric simulations |
| VerfasserIn |
A. D. Naiman, S. K. Lele, J. T. Wilkerson, M. Z. Jacobson |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 10, no. 5 ; Nr. 10, no. 5 (2010-03-12), S.2551-2560 |
| Datensatznummer |
250008187
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| Publikation (Nr.) |
 copernicus.org/acp-10-2551-2010.pdf |
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| Zusammenfassung |
| A new model of plume dynamics has been developed for use as a subgrid model of plume dilution
in a large-scale atmospheric simulation.
The model uses mean wind, shear, and diffusion parameters derived from the local
large-scale variables to advance the plume cross-sectional shape and area in time. Comparisons with a large
eddy simulation of aircraft emission plume dynamics, with an analytical solution to the dynamics of a
sheared Gaussian plume, and with measurements of aircraft exhaust plume dilution at cruise altitude
show good agreement with these previous studies. We argue that the model also provides a reasonable
approximation of line-shaped contrail dilution and give an example of how it can be applied
in a global climate model. |
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