Antarctica Coldest in Decades. Frozen Wave Pictures Water froze the instant wave broke through the...

Post on 16-Dec-2015

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Transcript of Antarctica Coldest in Decades. Frozen Wave Pictures Water froze the instant wave broke through the...

Antarctica

Coldest in Decades

Frozen Wave Pictures

• Water froze the instant wave broke through the ice

• Water freezes the instant it comes in contact with the air

• The temperature of the water is already some degrees below freezing

• Look at how the wave froze in mid-air!!!

Striped Ice

• Icebergs in the Antarctic area sometimes have stripes, formed by layers of snow that react to different conditions.

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

Brown and Blue Stripes

• Brown, black and yellow lines (previous slide) are caused by sediment, picked up when the ice sheet grinds downhill towards the sea

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

Rare Beauty

• In this last scene, the snow layers have broken away from the land mass and float vertically, presenting a rare glimpse into a frozen time and space.