Abstract: Statistical analysis of trajectory migration simulation results from different types of data and different spatial resolution level were carried out with three different types and different basic spatial resolution meteorological data i.e. NCEP reanalysis data, NCEP forecast data and ECMWF reanalysis data from January to December in 2013. The conclusion shows that different sources and different spatial resolution meteorological data have certain correlation, though it is weak with the average horizontal migration deviation of the end of trajectory greater than 50%. Different sources of meteorological data with same spatial resolution have better correlation in trajectory migration simulation. The average horizontal migration deviation of the end of trajectory is less than 20%. The long-term accumulation of different source of global weather forecast and reanalysis products are significantly important to the study on trajectory migration in atmospheric transport simulation.

Key words: trajectory migration, atmospheric transport, meteorological data, spatial resolution