Wildfires burning in the West affect not only the areas burned, but the wider regions covered by smoke.
Wildfires burning in the West affect not only the areas burned, but the wider regions covered by smoke. Recent years have seen hazy skies and hazardous air quality become regular features of the late summer weather.
Many factors are causing Western wildfires to grow bigger and to generate larger, longer-lasting smoke plumes that can stretch across the continent. An analysis led by the University of Washington looks at the most detailed observations to date from the interiors of West Coast wildfire smoke plumes.
The multi-institutional team tracked and flew through wildfire plumes from the source to collect data on how the chemical composition of smoke changed over time. A resulting paper, published Nov. 2 in the Proceedings of the National Academy of the Sciences, shows that smoke forecasts may incorrectly predict the amount of particles in staler smoke.
Read more at University of Washington
Image: This photo of a smoke plume from the Rabbit Foot fire in Idaho in 2018 shows how smoke from the source, at the left, changes as it travels downwind. (Credit: Brett Palm/University of Washington)
