Boats tossed around during breakup on the Hay River, NWT (Canada), May 7, 2008
Renowned river ice scientist, Dr. Spyros Beltaos, has coined the term “JAVE” as a shortened way to say ice JAm release waVE. These waves cause rapid water level rise and bring lots of ice with them, so they are particularly dangerous. When I was taking some pictures after a jave passed the dock in Hay River in 2008, I noticed the name on this boat and had to take a picture of it for him. I took the photo at the government dock on the East Channel. A number of boats here were jostled around when the water and ice overtopped the bank as the jave passed.
You can read more about this research on our Hay River Study web page.
(photo by Faye Hicks, UofA River Ice Group: Canon Powershot SD870 IS, f/8, ISO-80, FL 5 mm, 1/250 sec. exposure)