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Persistent Cold-Air Pool Photo Gallery
November 30, 2010

University of Utah and other scientists are studying this winter persistent cold-air pools often associated with episodes of poor air-quality. Photos that show low-lying clouds and/or the haze associated with these periods in the Salt Lake Valley and surrounding areas are greatly appreciated.

Photos taken from above the haze/cloud layers, which are often best observed from the benches or nearby mountains are of greatest interest. Unusual ice/frost forming on trees and near-ground objects during these events are also useful.

Be sure to include when (date and time) and where (including camera direction) that the photo was taken.

For more information, see or contact John Horel (