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Ice Hazards18 viewsMost of the time, the only way to deliver supplies to the North Pole stations was by plane. Weather conditions in the sky could be just as harsh and extreme as conditions on the ground. Here, a biplane is grounded after an accident near the Kara Sea in 1981. Image credit: EWG.
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Taking Scientific Measurements19 viewsDetermining instrument location by theodolite. A theodolite is a high-precision surveying instrument. Because the ice floes rotated and changed in topography as they drifted, undergoing freezing and thawing, station members needed to regularly determine the position of the instruments relative to each other and to North. Image credit: EWG.
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Taking Scientific Measurements20 viewsTwo station members traverse the snow survey line measuring snow density by weight. Image credit: EWG.
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2572 viewsTed pretends to surf on a sastrugi, a snow formation caused by strong winds.
Image Credit: Ted Scambos, NSIDC
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173 views1971 AIDJEX pilot study: An emissometer was used by CRREL-USGS-AEROJET to measure microwave emissivity of sea ice (Far right W. Campbell)
Image Credit: National Snow & Ice Data Center
AIDJEX Web site
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321 viewsThe Brooks Range glows purple in the twilight.
Image courtesy Mark Serreze, NSIDC.
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383 viewsResearchers head into the Brooks Range by snowmobile.
Image courtesy Mark Serreze, NSIDC.
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Allan Hills913 viewsThe Allan Hills are located on the flanks of the TransAntarctic Mountains. Ice upwells onto the hills where combinations of winds and solar insolation cause the ice to quickly ablate. Meteorites that once fell over a large region of East Antarctica have been carried by glacier motion into this small locality.
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121 viewsNSIDC researcher Andrew Slater prepares to travel by snowmobile during the 2011 Arctic Observing Network (Snownet) project.
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Antarctic Snow Dunes1075 viewsExtensive snow dunes wrinkle the surface of large parts of East and West Antarctica. The dunes are up to 100 kilometers long and separated by 2 to 4 kilometers, but only a few meters high. Comparison of modern satellite images with images acquired four decades earlier reveals that the dunes are nearly motionless.
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Emmons Glacier864 viewsEmmons Glacier, 22 September 1966, photographed by Austin Post.
Image Credit: Courtesy NSIDC Glacier Photo Collection
NSIDC Glacier Photo Collection
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Scienc on a Sub91 viewsScientist performing chemistry analysis of Arctic Ocean water by pouring it into a filtration assembly during SCICEX 98. Photo courtesy of ASL.
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