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An ice core is a core sample that is typically removed from an ice sheet or a high mountain glacier. Since the ice forms from the incremental buildup of annual layers of snow, lower layers are older than upper ones, and an ice core contains ice formed over a range of years. Cores are drilled with hand augers (for shallow holes) or powered ...
Project Iceworm was a top secret United States Army program of the Cold War, which aimed to build a network of mobile nuclear missile launch sites under the Greenland ice sheet. The end goal was to install a vast network of nuclear missile launch sites that could survive a first strike. This was according to documents declassified in 1996. [1]
The Upper Fremont Glacier ice core showed a spike in 36 Cl from 1960s nuclear testing. Amount of atmospheric mercury deposited at Wyoming's Upper Fremont Glacier over the last 270 years Ice cores from the glacier also showed increased levels of Tritium ( 3 H) and chlorine -36 around the year 1963, which coincides with the peak period of above ...
Nuclear icebreaker Yamal, 2015. A nuclear-powered icebreaker is an icebreaker with an onboard nuclear power plant that produces power for the vessel's propulsion system. . Although more expensive to operate, nuclear-powered icebreakers provide a number of advantages over their diesel-powered counterparts, especially along the Northern Sea Route where heavy power demand associated with ...
Camp Century was an Arctic United States military scientific research base in Greenland. [1] situated 240 km (150 mi) east of Pituffik Space Base. When built, Camp Century was publicized as a demonstration for affordable ice-cap military outposts and a base for scientific research. [2][3] Camp Century was a preliminary camp for Project Iceworm ...
The Greenland Ice Core Project (GRIP) was a research project organized through the European Science Foundation (ESF). [1] The project ran from 1989 to 1995, with drilling seasons from 1990 to 1992. [2] In 1988, the project was accepted as an ESF-associated program, and the fieldwork was started in Greenland in the summer of 1989.
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Ice drilling. The ACFEL ice auger showing an ice core pushed up into the core remover barrel. [1] Ice drilling allows scientists studying glaciers and ice sheets to gain access to what is beneath the ice, to take measurements along the interior of the ice, and to retrieve samples. Instruments can be placed in the drilled holes to record ...