Most viewed - Images by project
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126 viewsTingjun Zhang, Alessio Gusmeroli, Lin Liu, and Tim Schaefer check gear before starting a new survey of active layer depth using ground penetrating radar on August 16, 2012. Zhang holds the radar controller while the yellow antenna rests at his feet next to a spool of survey line. (Credit: Kevin Schaefer, NSIDC)
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124 viewsThe crew from the Aurora Australis.
Photo Credit: Courtesy Ted Scambos, NSIDC
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123 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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123 viewsThe equipment required to drill permafrost cores consists of shovels and a tarp, a motor to power the drill, a cooler to keep the samples frozen, a toolbox, a steel pry bar, and an augur drill bit. (Credit: Kevin Schaefer, NSIDC)
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123 viewsTundra bugs are always curious about permafrost researchers. (Kevin Schaefer, NSIDC)
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123 viewsAndy Parsekian sets up the ground penetrating radar equipment for a survey of active layer depth near Barrow, Alaska on August 13, 2013. (Credit: Lin Liu).
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permafrost, nsidc, kevin schaefer, alaska, barrow122 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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permafrost, nsidc, kevin schaefer, alaska, barrow122 viewsKevin Schaefer walks along the road to a next survey site near Barrow Alaska on August 11, 2013. Contrary to what the sign says, the effective speed limit was actually 5 mph (Credit: Elchin Jafarov, NSIDC).
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122 viewsLin Liu checks the day's data at basecamp. (Credit: Kevin Schaefer, NSIDC)
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122 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)
KS_1260.jpg
122 viewsLin Liu pulls a ground penetrating radar unit through the tundra in rainy weather. 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)
Toolik_2013_13.jpg
122 viewsResearchers prepare their snowmobiles during the 2013 Arctic Observing Network (Snownet) field project in Alaska's North Slope.
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