Ice Ridging on the Athabasca

Ice ridging on the Athabasca River, AB (Canada), April 21, 2000

In the early stages of breakup, individual ice sheets will move slightly – as the flow drag on the underside of the ice cover encourages them to push downstream.  The result is ice ridging.  Nothing too dramatic – but still, I think it looks beautiful.

(photo by UofA River Ice Group: Nikon E950, f/7.4,  FL 7 mm, 1/261 sec. exposure)

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About Faye Hicks

I am a professor emeritus, civil engineer, animal lover and writer.
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