Pancake Ice on Lake Michigan

March 31, 2017

PancakeIce2_SAM_0657 (3)

Photographer: Thomas Case
Summary Author: Thomas Case

Featured above is a photo of lake ice in Lake Michigan, taken off the Door Peninsula, near Algoma, Wisconsin. The site is near a breakwater where the ice piles up to form a type of pancake ice. Ice chunks colliding together from wave action causes the edges of small sections of ice to become rounded and somewhat raised. The semi-rounded pieces of ice shown here are about 3 ft (1 m) in diameter and have a vertical rim of about 6 in (15 cm). This entire ice field, extending approximately 100 ft (31 m) from the shoreline, rises and falls with the waves, making odd cracking noises as the ice grinds against itself. Photo taken on February 18, 2017.

Photo Details: Camera Maker: SAMSUNG; Camera Model: WB350F; Focal Length: 4.1mm (35mm equivalent: 23mm); Aperture: ƒ/3.5; Exposure Time: 0.0007 s (1/1500); ISO equiv: 80.