Investigating Emissions and Evolution of Trace Gases and Aerosols from Biomass Burning Plumes Measured during the ARCTAS-2008 Field Campaign
A statistical summary of the emission ratios and changes in gaseous and aerosol species concentrations within the plumes, relative to CO, as the plumes ages provides insights on the differences between these fires. The most extensive investigation of fire evolution was undertaken during ARCTAS-B where smoke from numerous large boreal forest fires were intercepted by the aircraft at a wide range of down-wind distances. This provided a unique opportunity for investigating the changes in trace gases and aerosols as the smoke plumes aged. A complex evolutionary progression with rapid production of secondary aerosols was observed in the boreal fires.