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AIDJEX1972_063.jpg
120 viewsAIDJEX 1972 pilot study. Inside NASA convair990: Andy Heiberg at right.
Image Credit: NSIDC courtesy Tom Marlar/CRREL
AIDJEX Web site
AIDJEX1972_071.jpg
120 viewsAIDJEX 1972 pilot study. Inside NASA cv990 Murray Stateman at right
Image Credit: NSIDC courtesy Tom Marlar/CRREL
AIDJEX Web site
KS_0798.jpg
120 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)
AIDJEX1972_070.jpg
119 viewsMurray Stateman AIDJEX 1972 pilot study
Image Credit: National Snow & Ice Data Center
AIDJEX Web site
Toolik_2013_04.jpg
119 viewsPart of Brooks Range rises over the distance.
KS_1034.jpg
117 viewsLin Liu and Andy Persekian check active layer depth measurements on a laptop as Elchin Jafarov looks on. (Credit: Kevin Schaefer, NSIDC)
KS_APE_Jul11_184.jpg
117 viewsStandford University scientist Lin Liu and research volunteer Tim Schaefer are attempting to remove a drill bit that accidently froze into the permafrost at a site just south of Deadhorse, Alaska on July 11, 2009. The researchers spent eight hours chipping the drill bit out of the permafrost using a crowbar, pry bar, and a hammer (Credit: Kevin Schaefer, NSIDC)
TS_03_7HailCluster.jpg
117 viewsA detailed image of hail after it has clustered together.
Photo Credit: NSIDC Courtesy Erica Key
KS_1159.jpg
116 viewsKevin Schaefer drains his mud boots after a day of sloshing through wet tundra. (Kevin Schaefer, NSIDC)
KS_1051.jpg
114 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).
KS_APE_Jul10_129.jpg
114 viewsStandford University scientist Lin Liu, NSIDC senior research scientist Tingjun Zhang, and research volunteer Tim Schaefer pull the auger bit containing a permafrost core out of a newly drilled hole near Deadhorse, Alaska on July 10, 2009. (Credit: Kevin Schaefer, NSIDC)
KS_0504.jpg
113 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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