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236 viewsTim Schaefer slakes his thirst with ice chopped from an exposed ice layer at a thermokarst feature on August 19, 2012 near Toolik Lake, Alaska. (Credit: Kevin Schaefer, NSIDC)
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236 viewsLin Liu pulls a ground penetrating radar unit through the tundra in rainy weather as Andy Persekian and Elchin Jafarov follow behind. The survey near Barrow, Alaska measures active layer depth. The radar unit (in the box) emits a pulse which reflects off the permafrost to measure the active layer depth, which is recorded in the computer held by Andy Parsekian. (Credit: Kevin Schaefer, NSIDC)
larissa2009-2010_icefracture.jpg
236 viewsThis photo looks down a fracture in the ice.
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236 viewsResearchers prepare their snowmobiles during the 2013 Arctic Observing Network (Snownet) field project in Alaska's North Slope.
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236 viewsA researcher's winter gloves provide a sense of scale to sastrugi, sharp irregular grooves or ridges formed on a snow surface by wind erosion, seen during the 2013 Arctic Observing Network (Snownet) project.
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235 views
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233 viewsImage courtesy Andrew Slater, NSIDC.
Maurer_Greenland_2004_084.jpg
233 viewsAll done! After two days of work, you can now actually see the wooden platform that Swiss Camp rests on. Hopefully when all of the surrounding snow melts this summer, it will now flow down this platform and away from the tents.
Photo by John Maurer, CIRES/NSIDC, University of Colorado.
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233 viewsFrom Left: Jonathan Thom, Rob Bauer, Ronald Ross, and Ted Scambos show off their survival gear for the IceTrek expedition.
Photo Credit: Courtesy Ted Scambos and Rob Bauer, NSIDC
IceTrek Web site
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Florence Fetterer232 viewsNSIDC Scientist Biography
Maurer_Greenland_2004_082.jpg
232 viewsClose-up of the sled with the propane for the steam drill as we work on clearing snow and ice from around Swiss Camp (Nic is in the background). Photo by John Maurer, CIRES/NSIDC, University of Colorado.
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permafrost, nsidc, kevin schaefer, alaska, barrow231 viewsAndy Parsekian, Kevin Schaefer, and Lin Liu use a ground penetrating radar to measure the depth of an ice wedge on August 15, 2013. The survey line lies perpendicular to the ice wedge and similar ice wedges crisscross the tundra in the background (Credit: Elchin Jafarov, NSIDC).
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