Ice covering a post on the Kananaskis River, AB (Canada), Feb. 24, 2012
The Kananaskis River is a beautiful, steep mountain stream that is regulated for hydro-power production. Water levels vary up to 1 m (~3 ft) each day. As the water level drops, ice is left stranded at higher levels. Here’s a shot taken by MSc student, Stefan Emmer, of the sock of ice left behind on a post sticking out of the river.
(photo by Stefan Emmer, UofA River Ice Group: Nikon CoolPix AW100, f/4.8, ISO – 125, FL 25 mm, 1/400 sec. exposure duration)