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Ice-Tethered Profiler schematic. (Illustration by Jack Cook, Woods Hole Oceanographic Institution)
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WHOI researchers take part of an ice-tethered profiler (ITP) from a warehouse where they tested and prepped it to outdoor storage at the airport in Resolute Bay, Canada. (Photo by Chris Linder, Woods Hole Oceanographic Institution)
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In 2011 WHOI researchers working from Russia's Ice Camp Barneo and using a Russian helicopter installed an Ice-Tethered Profiler, ITP-47, in thick ice near the North Pole to learn how the Arctic is responding to climate change. (Photo by Rick Krishfield, Woods Hole Oceanographic Institution)
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In 2011, an international team of researchers spent more than a month on board the Canadian icebreaker Louis S. St. Laurent deploying five ice-tethered profilers (one shown here) as part of the Beaufort Gyre Exploration Project in the Arctic. (Photo by Rick Krishfield, Woods Hole Oceanographic Institution)
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Researchers from WHOI and crew from the Canadian icebreaker Louis S. St. Laurent prepare to deploy an ice-tethered micro-mooring (ITM), which consists of a yellow buoy embedded in a hole in the ice and a line supporting instruments hanging 100 meters down into the ocean below. (Photo by Rick Krishfield, Woods Hole Oceanographic Institution)
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An ice-tethered profiler takes one last look at the sky in 2011 before passing through four meters of ice in the Beaufort Sea to begin a study of ocean physics, biology, and chemistry beneath the sea ice. (Photo by Steve Lambert, Woods Hole Oceanographic Institution)
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After spending 12 hours on the ice more than 5 kilometers (3.1 miles) from their ship, engineers installed the first Ice-Tethered Profiler (ITP) in Antarctica. (Photo by Scott Worrilow, Woods Hole Oceanographic Institution)