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Mooring retrieval

Taking the Ball and Going Home

Crew members from the Canadian Coast Guard vessel Pierre Radisson use aZodiac inflatable boat to recover a mooring from Hudson Strait in northeastern Canada inSeptember 2006. The sub-surface mooring was designed to help WHOIphysical oceanographer Fiamma Straneo and colleagues observe the flow of fresh waterout of the Strait and into the Labrador Sea. The mooringwas set in 200-meter-deep water and stretched to 50 m below thesurface so as not to be chopped up by ice floes and bergs. Theinstrument on top of the yellow float is an upward looking sonar, whichallowed Straneo and colleagues to measure sea-ice thickness (or"draft"). Straneo is one of many WHOI researchers examining changes occuring near Earth's poles. (Photo by Fiammetta Straneo, Woods Hole Oceanographic Institution)

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