New video shows danger and beauty of Lake Michigan shelf ice; people can see it for themselves at events on Indiana Dunes State Park pavilion rooftop
By Ken Kosky
The Indiana Dunes area is the perfect place to enjoy a winter hike, or, if there is enough snow, to enjoy sledding, cross-country skiing and snowshoeing. And, as the winter wears on, large formations of shelf ice form along the shore of Lake Michigan, offering a glimpse of Arctic-like beauty right here in the Midwest.
Shelf ice is a cold-weather phenomenon that occurs when cold temperatures freeze small areas of an open lake, forming float ice. This ice will build up over time and be pushed to shore by waves, eventually accumulating on top of the beach, forming shelf ice.
Unlike a pond or a small lake that freezes over, the shelf is not a uniform sheet of ice. Created by the wind and waves, the shelf ice is a jumble of ice chunks pushed onto each other, but there is nothing stable in the pile. The individual pieces are not initially connected; they only float upon the water surface and rest upon each other. Many become jammed together but throughout the structure, there are pockets of air. Because of the uneven surface and possible air holes throughout shelf ice, the ice may give way unexpectedly, making it unsafe to walk on.
Visitors to the Indiana Dunes can view the shelf ice from the shore, or attend presentations at Indiana Dunes State Park, some of which have included views of the shelf ice from the roof of the historic pavilion. The shelf ice video shot by Thad Donovan also shows the beauty of the shelf ice. Donovan always thought the shelf ice that forms along Lake Michigan’s shoreline was both beautiful and dangerous, but he didn’t know how right he was until he used his remote-control helicopter to get an aerial view at Indiana Dunes State Park in Chesterton.
“Working with the state park’s assistance and permission, I got views from the lake side of the shelf ice, which few people see and it’s enlightening. It falls off like a cliff and has big cracks, and any of those cracks could break off at any time and you could fall in,” Donovan said.
Fortunately, people don’t need to risk their lives to see the shelf ice, which is amazing this year because of the frigid winter.
Donovan’s video is posted in this blog and can also be viewed on Indiana Dunes Tourism’s winter page .
Donovan, who is president of Smith Donovan Marketing & Communications in Chesterton, does a lot of video work on the ground for clients. But the aerial video is a hobby made possible by advancements in remote-control technology. New quadcopters (with four propellers) with video cameras are more affordable and easier to use.
“Although these quadcopters are fairly easy to fly, they are still potentially dangerous. They are not toys and should be taken seriously,” Donovan said.
Park officials just remind people never to walk on the shelf ice, but rather to observe it from the beaches or dunes.
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