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NickB79

(19,258 posts)
Sat Jul 6, 2013, 05:49 PM Jul 2013

Antarctic flood produces 'ice crater' (subsurface lake draining into the sea)

http://www.bbc.co.uk/news/science-environment-23144184

Scientists have seen evidence for a colossal flood under Antarctica that drained six billion tonnes of water, quite possibly straight to the ocean.

The cause is thought to be a deeply buried lake that suddenly over-topped.

Satellites were used to map the crater that developed as the 2.7km-thick overlying ice sheet slumped to fill the void left by the escaping water.

The peak discharge would have been more than double the normal flow rate of London's River Thames, researchers say.


That's a lot of water.
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Antarctic flood produces 'ice crater' (subsurface lake draining into the sea) (Original Post) NickB79 Jul 2013 OP
uh-oh nt Deep13 Jul 2013 #1
A lot of water. Thanks, Nick. Guess we can only watch it all unfold now. nt Mnemosyne Jul 2013 #2
well that explains it FirstLight Jul 2013 #3
hmmm... nebenaube Jul 2013 #4
The article says there are pscot Jul 2013 #5
Rough calculations for perspective OnlinePoker Jul 2013 #6

FirstLight

(13,362 posts)
3. well that explains it
Sat Jul 6, 2013, 06:17 PM
Jul 2013

we recently saw news articles saying the jet stream/flow is shifting and causing the anomalies we are seeing in some places... i wonder if these two are related, wonder if the great oceanic currents will start shifting now...

OnlinePoker

(5,725 posts)
6. Rough calculations for perspective
Sun Jul 7, 2013, 02:42 PM
Jul 2013

6 Billion Tonnes is 6 trillion liters of (pure) water. There are 2.5 million liters in an Olympic sized swimming pool, so this makes a total of 2.4 million Olympic swimming pools. Lake Powell on the Colorado River currently has 3.8 trillion gallons of water in it (about 15 trillion liters), so this drained the equivalent of about 40% of Lake Powell's current reservoir.

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