Ice Ripples
The following are two pictures of a very linear and uniform ice ripples. The observer and photographer is Sue Thomas.
The extent of the ripples is over 100 ft.
This looks like it is a feature similar to slush balls that form at the edge of open water.
Click here for more on slush balls
Slush balls are not as uniform in size and shape.
One possible contributing factor is snow-fall slush that forms when snow falls directly into water. It can create repetitive patterns in the ice in some circumstances.
