Eularian multi-layer model for long-term atmospheric transport and deposition of sulphur and nitrogen compunds in Europe

摘要

As a part of EMPE (Co-operative Programme for Monitoring and Evaluation of the Long Range Transmission of Air Pollutants in Europe), Meterological Syn-thesizing Centre West (MSC-W) has the task to compute atmospheric transport and deposition of sulphur and nitrogen species over Europe. To perform this task a three-dimensional Eulerian multilayer model was developed at MSC-W. This model has a 50 km horizontal resolution with 20 vertical layers, of which 10 are below 2 km level. The model is coded in FORTRAN for a parallel version of CRAY-CRAY T3E, working in Multiple-Instructions-Multiple-Data (MIMD) system. Model structure, as well as the model results, are presented and discussed. We also present a comparison of calculated concentrations and deposition fields for sulphur and nitrogen in 1996 with available measurements in Europe.