Exposed Anchor Ice on the Kananaskis River, AB (Canada), Nov. 26, 2012
Anchor ice occurs frequently on the Kananaskis River – it forms when suspended frazil ice adheres to the stream bed. Because the river is regulated for hydro-power production, water levels vary substantially over the day, each day. This not only leaves anchor ice exposed at low flow (as we see to the right of the flowing water here), often it also leaves icicles hanging along the banks. MSc students Vincent and Stefan found this ice dam on the Kananaskis River in November 2012.
(Photo by Vincent McFarlane: Canon PowerShot SD4500, f/3.4, ISO – 200, FL 6mm, 1/500 sec. exposure duration)