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199 viewsAIDJEX 1972 pilot study. Inside NASA CV990
Image Credit: National Snow & Ice Data Center
AIDJEX Web site
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199 viewsSnowmobiles wait at the bottom of a hill.
Image courtesy Andrew Slater, NSIDC.
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199 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).
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199 views
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198 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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198 viewsSmall ices lenses are common in permafrost, as seen in this typical permafrost core drilled near Deadhorse, Alaska on August 17, 2012. (Credit: Kevin Schaefer, NSIDC)
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198 viewsThe automatic weather station (AWS) near the coast that we are going to cut down since it has been so difficult to reach by ski-doo over the past few years. Photo by John Maurer, CIRES/NSIDC, University of Colorado.
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198 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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197 viewsLin Liu pulls a ground penetrating radar unit through the tundra near Barrow, Alaska on to measure the 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)
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197 viewsView of Swiss Camp from the helicopter.
Photo by John Maurer, CIRES/NSIDC, University of Colorado.
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197 viewsThe Alaska Pipeline transports oil 800 miles from the North Slope to Valdez, Alaska.
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196 viewsThe Alaska pipeline follows the Dalton Highway in the Brooks Range in this photo taken on August 15, 2012. The pipeline connects the oil fields at Prudhoe Bay with the tanker facilities in Valdez, a distance of over 800 miles. (Credit: Kevin Schaefer, NSIDC)
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