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Life on a Drifting Station43 viewsTents at NP-1 served as both living and working areas. On subsequent stations, however, such as that pictured here, tents were used mainly for supply storage. Plywood was used for buildings that housed people and laboratories. Image credit: EWG.
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Arctic Buildings17 viewsHarsh and extreme arctic conditions required special considerations when trying to build any type of structure. Heavy machinery was used to construct and maintain the runways that allowed planes to deliver supplies. When not used for runways, tractors such as this one would be used for other construction around the camp. Image credit: EWG.
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Ice Hazards17 viewsDuring summer, melt ponds posed hazards to the camp. Here, a station member rows an inflatable raft in a melt pond that has formed in the middle of the camp at NP-6. Image credit: EWG.
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Polar Bears28 viewsBeyond the ridges of ice, dogs chase the polar bear, ensuring that it does not approach the camp. Image credit: EWG.
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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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300 viewsAreas that contain much permafrost can look barren. But plants and animals prosper here in the summer days, when the top layer of frozen ground thaws. The caribou in this photograph, in the Noatak National Preserve, Alaska, are migrating in the early fall.
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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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Fimbul Ice Shelf1015 viewsThe Fimbul Ice Shelf is punctuated by numerous ice rises that occur where isolated rocky islands are covered by ice. Ice shelves may be particularly sensitive to changes in climate, and recently ice shelves in the Antarctic Peninsula have experienced rapid retreat
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Clearing the Hatch102 viewsMembers of Ice Camp Lyon chip away the sea ice to access the hatch of the USS Hawkbill after it surfaces during SCICEX 99. Photo courtesy of ASL.
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ICESat/GLAS tracks over Hektoria Glacier, Antarctica940 viewsThis figure shows an image map of three ICESat/GLAS tracks from the eight-day missions that were used to investigate the response of Hektoria Glacier in the Antarctic Peninsula to the loss of the Larsen B Ice Shelf in March of 2002. The three tracks cross the lower portion of the glacier at an angle. In dark blue are contours showing the level of speed increase in meters per day since breakup of the shelf.
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1071 viewsThis Landsat image of Crane Glacier on the Antarctic Peninsula is overlain with ICESat and Airborne Topopgraphic Mapper (ATM) tracks. ATM is a lidar sensor that is now part of the IceBridge mission. Over time, ICESat and ATM measurements, together with visible imagery, can detect thinning of the ice and accelerated flow of ice into the ocean. Large glaciers such as Crane have the potential to contribute significantly to sea level rise.
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692 viewsOne of the most studied and interesting ice streams in Antarctica, Ice Stream B shows a number of features that indicate past changes and ongoing evolution. In this subscene the upstream ends of several ice stream shear margins are highlighted. Characteristic crevasse patterns, nicknamed "chromosomes," mark the ends of several of these margin traces.
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