Author(s)

A. Ebel & H. Petry

Abstract

The impact of air traffic on tropospheric composition A. Ebel, H. Petry Institute for Geophysics and Meteorology, University of Cologne, D-50923 Cologne, Germany ABSTRACT Aircraft emissions establish a major contribution to the pollution of the upper troposphere and lower stratosphere in particular in corridors with in- creased flight densities. As an example, the North Atlantic corridor should be mentioned. Using current estimates of aircraft emissions a mesoscale chemical transport model has been applied to assess the impact of air traffic in this corridor on the tropopause region through the simulation of episodes. The results indicate that it is important to develop realistic emission scenarios for such simulations. Nevertheless, simplified scenarios can be used to investigate interactive processes of tracer transport and chemical transformation and thus to establish a more reliable basis for the assessment of global climate effects. INTRODUCTION The observation

Keywords