There's a headline about a kilometre long ice heave in Saskatchewan. That's a heave of ice from an ocean or large lake onto the shore.
When we consider shoreline erosion, I guess one of the causes can be ice heaving. It is also known as ice jacking and then what it does to the shoreline is known as ice ridges, ice pushes and ramparts.
Cracks form in the ice when there are different temperatures at the top and bottom of the ice, making for different expansions ages.
There's a fact sheet from the Kawarthas so this must be a common issue in Eastern Ontario. I guess the big damage would be to docks on cottage lakes.
In Alberta there are also ice quakes: these are also known as cryoseisms. It is a seismic event that occurs naturally by the rapid movement of the ice occur when there is a sudden release of energy from ice under stress. The shock waves are not significant, so maybe the name sounds more ominous than the actual event.
Beyond this there are ice tsunamis - that was on Lake Erie a few years ago. And remember two years ago when there was a Lake Erie storm that whipped up snow and water onto the shore-front homes encasing them in ice a foot thick. They did not give a name for this occurrence.
The places where the conditions come together to make ice heaves near us are on the east end of Lake Erie around Buffalo. But we are quite close to Buffalo, so there have been cases where the ice heave was a shove that made its way to the Canadian side. Here's the story:
"Back in February 2019, a major ice shove on Lake Erie produced spectacular video as the ice encroached on the Canadian shoreline across from Buffalo. Using an ice thickness of 6 inches, it was calculated that there could have been in the neighborhood of 13.5 billion tons of ice covering the 225-mile-long lake, being pushed downwind by wind gusts up to 70 mph. That gives you some idea of the forces involved when Nature flexes its muscles."
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