Observation of an intense biomass burning event over Spitsbergen

During July 2015, an extremely strong event of biomass burning (BB) originating from the boreal America was observed over Spitsbergen with a “3+2” Raman Lidar. In this work we show some results from the lidar and a contemporaneous launched radiosonde to demonstrate that this aerosol was only hygroscopic at humidities above 80%.