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| Titel |
Mean Age of Air in the KASIMA model using ERA-Interim analyses |
| VerfasserIn |
T. Reddmann, R. Ruhnke, W. Kouker |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250068567
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| Zusammenfassung |
| Results of model simulations of long-term tracer transport in the middle atmosphere using
ERA-Interim analyses are presented using the 3D model KASIMA. Several artificial tracers
have been implemented in the model simulating trace gases as SF6, CO2, N2O and H2O
commonly used to derive transport properties in the middle atmosphere from observations.
We test several configurations of the model where the relaxation to the analyses have been
varied and compare the results to observations. We find a general good agreement of mean
age of air as derived from long lived tracers running the model without any relaxation.
Possible long-term changes of transport characteristics found in the model are discussed. |
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