A British explorer said Tuesday he plans to provide the most accurate survey of the thickness of the Arctic ice during a 1,200-mile (1,920-kilometer) walk to the North Pole.
Pen Hadow's Vanco Arctic Survey will take millions of readings of the thickness and density of the ice and snow to try to provide the clearest picture of the polar ice cap and how long it will last.
His three-member team will pull a sledge containing a ground-penetrating radar unit that will take readings every 20 centimeters (8 inches) of the ice depth from Point Barrow in Alaska to the North Pole.
The explorer expects to take 100 to 120 days to reach the Pole after setting off in February.
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