Aerosol source areas identification based on lidar sounding data and back trajectories statistics

Details Aerosol source areas identification based on lidar sounding data and back trajectories statistics Aerosol source areas identification based on lidar sounding data and back trajectories statistics

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007spie.6733e...3c&link_type=abstract

International Conference on Lasers, Applications, and Technologies 2007: Environmental Monitoring and Ecological Applications; O

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Data of aerosol measurements from October 2004 to December 2006 and a collection of back trajectories arriving at a monitoring site at the measurement instants were used to reveal main aerosol source areas with the help of the residence time analysis. Overall aerosol content in the vertical atmosphere column was measured in Minsk (Belarus) and Belsk (Poland) with the help of multiwavelength aerosol lidar and sun-scanning spectral radiometer. 3D five day back trajectories were calculated using wind field data provided by Republican GidroMeteoCenter of Republic Belarus. These data were supplemented with the vertical velocity data and the wind field in the planetary boundary layer. It was found that the most powerful aerosol source areas are beyond of Belarus and Poland territories. They are on the south-east, south and south-west directions to monitoring stations. Revealed sources are close to the expert EMEP aerosol emission data. On the average the south territories affect the most atmosphere conditions at the monitoring sites. About 60% of aerosols in Minsk and about 50% of aerosols in Belsk have a transboundary origin.

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