Abstract
The European comission has recently approved a new research initiative under the 5th framework programme to reconstruct the chemical composition of the troposphere over the past 40 years. The project has started in January 2003 and involves 12 partner institutions and several external contributors. RETRO aims at a consistent reconstruction of the concentrations of ozone, its precursors, and aerosols with the help of a number of state-of-the-art global chemistry transport models, which are driven with meteorological reanalyses from the ERA-40 data generated at ECMWF. Emphasis will be given to the careful construction of emission data sets and the collection and assessment of available observations from long-term data sets. The models will be evaluated with the available data, and sensitivity experiments will be performed in order to investigate the importance of the individual factors contributing to the past composition change. The observed and simulated trends will be assessed with respect to air pollution control legislature in Europe and elsewhere, and recommendations for the future will be given. This poster describes the project and its status.
| Original language | Undefined/Unknown |
|---|---|
| Title of host publication | European Geosciences Union |
| Pages | 1179 |
| Number of pages | 1 |
| Publication status | Published - 2003 |