Most viewed - Images by project
TZ_0338.jpg
99 viewsKevin Schaefer and Lin Liu photograph and wrap permafrost core samples on August 17, 2012 while Alessio Gusmeroli and Tim Schaefer drill more permafrost core samples. (Credit: Tingjun Zhang, NSIDC)
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98 viewsLin Liu and Andy Persekian check active layer depth measurements on a laptop as Elchin Jafarov looks on. (Credit: Kevin Schaefer, NSIDC)
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98 viewsKevin Schaefer drains his mud boots after a day of sloshing through wet tundra. (Kevin Schaefer, NSIDC)
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98 viewsAlessio Gusmeroli models his new turf top hat after drilling a permafrost core near Deadhorse, Alaska on August 17, 2012). (Credit: Tingjun Zhang, NSIDC)
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97 viewsLin Liu, Andy Parsekian, and Elchin Jafarov pull a ground penetrating radar unit through the tundra near Barrow, Alaska on August 10, 2013. The radar unit is in the box and the computer records the active layer depth (Credit: Kevin Schaefer, NSIDC).
Toolik_2013_01.jpg
97 viewsResearchers check their gear during the 2013 Arctic Observing Network (Snownet) project in Alaska.
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96 viewsThis permafrost core extracted from a depth of 1.5 meters on August 20, 2012 near Toolik Lake, Alaska has been frozen for thousands of years, yet green moss is visible at the 9 centimeter mark. (Credit: Kevin Schaefer, NSIDC)
TZ_0414.jpg
96 viewsDawn finds Kevin Schaefer and Tim Schaefer still sleeping at camp near the Sagavanirktok River south of Deadhorse, Alaska on August 16, 2012. Mud makes the trucks appear brown, although their true colors are red and blue (Credit: Tingjun Zhang, NSIDC).
Toolik_2013_15.jpg
95 viewsThe Alaska Pipeline transports oil 800 miles from the North Slope to Valdez, Alaska.
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94 viewsDriving the Dalton Highway on August 15, 2012 becomes difficult as visibility drops to zero on Atigun Pass in the Brooks Range, Alaska. (Credit: Kevin Schaefer, NSIDC)
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94 viewsLin Liu and Andy Persekian take a dip during a break from data gathering. (Credit: Kevin Schaefer, NSIDC)
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94 viewsLin Liu and Alessio Gusmeroli dig into a small pingo south of Deadhorse, Alaska on August 17, 2012. (Credit: Tingjun Zhang, NSIDC)
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