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The Big Yellow Ball

The Big Yellow Ball

Researchers and crew on the Canadian Coast Guard icebreaker Pierre Radisson prepare to deploy a flotation sphere that is part of a sub-surface mooring in Hudson Strait. The Arctic winch, mounted on top of the sphere, is crucial in capturing the upper 50 meters to measure the freshwater outflow into the North Atlantic. (Photo by Fiamma Straneo, Woods Hole Oceanographic Institution)


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