Evaluation of the emergency dispersion model at the deutscher wetterdienst using ETEX data

The emergency system of the German weather service for the dispersion forecast of hazardous material consists of a trajectory model and a Lagrangian particle dispersion model based on the German global and regional operational weather forecast models. Their products may be transmitted via national and international communication systems in standard formats. Following a description of the Lagrangian particle dispersion model, simulations with the Europa-Modell of the DWD and the ECMWF model are evaluated using ETEX measurements.