T. Reddmann, R. Ruhnke, W. Kouker and S. Versick
Evaluating transport in the middle atmosphere using ERA-Interim analyses
Results of model simulations of long-term tracer transport in the middle
atmosphere using ERA-Interim analyses are presented using the 3D model
KASIMA. KASIMA combines meterological analyses with a mechanistic model
covering a vertical range from the lower stratosphere up to the lower
thermosphere. 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.
Using the whole period of ERA-Interim from 1979 up to present, we
compare observations of these tracers with the model results to
characterise the transport properties of the simulations.
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