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EJ_0034.jpg
130 viewsThis plug of turf dug up near Barrow, Alaska shows a typical soil profile in tundra. The vegetation consists of moss and grass. A layer of dark brown organic matter extends down to a depth of 10 centimeters and beneath the organic layer is fine silt (Credit: Elchin Jafarov, NSIDC).
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130 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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130 viewsPart of Brooks Range rises over the distance.
AIDJEX1972_058.jpg
129 viewsAIDJEX 1972 pilot study. Inside NASA convair 990, W.Campbell at left.
Image Credit: NSIDC courtesy Tom Marlar/CRREL
AIDJEX Web site
AIDJEX1972_063.jpg
129 viewsAIDJEX 1972 pilot study. Inside NASA convair990: Andy Heiberg at right.
Image Credit: NSIDC courtesy Tom Marlar/CRREL
AIDJEX Web site
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129 viewsAIDJEX 1972 pilot study. Inside NASA cv990 Murray Stateman at right
Image Credit: NSIDC courtesy Tom Marlar/CRREL
AIDJEX Web site
KS_APE_Jul10_129.jpg
129 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)
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128 viewsMurray Stateman AIDJEX 1972 pilot study
Image Credit: National Snow & Ice Data Center
AIDJEX Web site
KS_APE_Jul14_276.jpg
128 viewsOn the 2009 trip to drill permafrost samples, the researchers’ truck was so loaded with equipment that retrieving anything required a headlong dive into the back. Here, Standford University scientist Lin Liu dives into the truck to retrieve his toothbrush in the morning. (Credit: Kevin Schaefer, NSIDC)
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127 viewsResearch volunteer Tim Schaefer, Standford University scientist Lin Liu, and NSIDC senior research scientist Tingjun Zhang drill a permafrost sample south of Deadhorse, Alaska on July 10, 2009. The head nets protect the researchers from the clouds of mosquitoes that continually swarmed around them. (Credit: Kevin Schaefer, NSIDC)
TS_03_7HailCluster.jpg
126 viewsA detailed image of hail after it has clustered together.
Photo Credit: NSIDC Courtesy Erica Key
KS_1051.jpg
125 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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