Axel Schweiger, principal scientist and chair at the University of Washington's Polar Science Center, prepares a Dropsonde sensor to be deployed from a Coast Guard HC-130 Hercules airplane while and Roger Andersen, senior mathematician at the University o

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Axel Schweiger, principal scientist and chair at the University of Washington's Polar Science Center, prepares a Dropsonde sensor to be deployed from a Coast Guard HC-130 Hercules airplane while and Roger Andersen, senior mathematician at the University of Washington's Polar Science Center, calibrates the receiving equipment above the Beaufort Sea north of Alaska, Tuesday, July 16, 2013. The polar science team has been working with Air Station Kodiak to collect data on the Arctic since 2009.

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