Video of Ice jacking in Miles Cove - Norte Dame Bay

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Video of Ice jacking in Miles Cove - Norte Dame Bay

Interesting event, ice piling up on the shore of a bay. This is a fine example of what scientists and engineers call an "ice-shove" or "ice-push". The Inupiat eskimo of northern Alaska use the term "ivu". The occur when the winds and / or ocean currents push the floating sea ice up against the shore. This is one of the best movies of this type of event I've seen.

Andy Mahoney
Post Doctoral Researcher and Ice Nerd
National Snow and Ice Data Center
Boulder, CO 80305

When ice is subjected to a slight warming temperature, it will expand somewhat.

So this lake/ocean was probably frozen already, and then the weather got a tiny bit warmer, making the existing ice of the lake expand onto the shore. The phenomenon is sometimes called "ice jacking" or "ice lifting".

In an ocean it can also be caused by a wave coming in from farther out to sea.



ice-jacking.jpg - 10.42kb
By netchicken: posted on 5-2-2007








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