antarctica coldest in decades. frozen wave pictures water froze the instant wave broke through the...
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Antarctica
Coldest in Decades
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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!!!
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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.
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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
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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.
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