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So one of the things we've done on this 

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cruise is we deployed uh an autonomous 

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vehicle that's called a glider . It's 

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like a torpedo shaped instrument that 

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dives up and down and goes into areas 

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where the ship can't go . So one of the 

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things we're doing with the gliders , 

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we're trying to understand how warm 

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water gets through these deep troughs 

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close to Greenland that helps melt the 

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ice that's coming out of the glaciers . 

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And this glider can get way up in there 

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close to these few yours . 

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So it's really valuable to 

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take that information and combine it 

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with the information from the ship .