THE SIMULATION OF THE TRANSPORT OF AIRCRAFT EMISSIONS BY A 3-DIMENSIONAL GLOBAL-MODEL

A three-dimensional off-line tracer transport model coupled to the ECM WF analyses has been used to study the transport of trace gases in the atmosphere. The model gives a reasonable description of their general transport in the atmosphere. The simulation of the transport of aircr aft emissions (as NO(x)) has been studied as well as the transport of passive tracers injected at different altitudes in the North Atlantic flight corridor. A large zonal variation in the NO(x) concentrations a s well as large seasonal and yearly variations was found. The altitude of the flight corridor influences the amount of tracers transported i nto the troposphere and stratosphere to a great extent.