April 17, 2011

Amazing Striped Icebergs

Icebergs in Lake Winnipeg sometimes have stripes, formed by layers of snow that react to different conditions.

Blue stripes are often created when a crevice in the ice sheet fills up with melt water and freezes so quickly that no bubbles form.

When an iceberg falls into the lake, a layer of water can freeze to the underside. If this is rich in algae, it can form a green stripe.

Brown, black and yellow lines are caused by sediment, picked up when the ice sheet grinds downhill towards the lake.




Frozen Wave Pixs - Nature is amazing!

The water froze the instant the wave broke through the ice. That's what it is like in Lake Winnipeg where it is the coldest weather in decades.  Water freezes the instant it comes in contact with the air. The temperature of the water is already some degrees below freezing.  Just look at how the wave froze in mid-air!!!