W. R. Leaitch

TL;DR: In this article, the hygroscopicity of the oxygenated fraction of the organic component, as determined by an Aerodyne aerosol mass spectrometer (AMS), was characterised by two methods.

TL;DR: In this article, the authors compared the performance of large-scale aerosol models with each other and observations and found that the variance between models and observations can explain an order of magnitude variation in spatial distributions of SO x downwind in the northern hemisphere.

TL;DR: In this article, an adiabatic model describing the condensational growth of cloud droplets predicted this apparent non-proportionality and indicated it was the result of increasing competition for water vapour by increasing numbers of cloud condensation nuclei.

TL;DR: The trend and interannual variations of the Canadian High Arctic aerosol record at Alert, Canada (82.5°N), from 1981 to 2007 are investigated and attributed to the influences of anthropogenic emissions and long-range transports as mentioned in this paper.

TL;DR: In this paper, a static diffusion cloud condensation chamber was used to measure the growth rate of water droplets at a rural field site in Southern Ontario, Canada, 70 km north of Toronto, during a 5-day period of northerly wind flow when the aerosol was dominated by biogenic sources.