wikipedia | 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 whose 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.[4] The missiles were never fielded and necessary consent from the Danish Government to do so was never broached.
The camp operated from 1959 until 1967. It consisted of 21 tunnels with a total length of 9,800 feet (3.0 km), and was powered by a nuclear reactor. Project Iceworm was aborted after it was realized that the ice sheet was not as stable as originally assessed, and that the missile basing concept would not be feasible. The reactor was removed and Camp Century later abandoned. However, hazardous waste remains buried under the ice and has become an environmental concern.[5]
Scientific research
Ice core samples from Camp Century were used to create stable isotopes analyses used to develop climate models.[6][7][8] Analysis of soil contained in the samples suggests that the site was ice-free as recently as 400,000 years ago, indicating a much reduced Greenland ice sheet and therefore much higher sea levels.[9] Since 2017, the Geological Survey of Denmark and Greenland has maintained a climate monitoring presence at Camp Century with the Camp Century Climate Monitoring Program.[10] This monitoring presence includes measuring climate variables, snow and ice temperatures, and ice-penetrating radar surveys of the subsurface debris and contaminant field.
History
The purpose of Camp Century, as explained by the United States Department of Defense to Danish officials in 1960, was to test various construction techniques under Arctic conditions, explore practical problems with the PM-2A semi-mobile nuclear reactor, as well as supporting scientific experiments on the icecap.
Construction on the camp and the sub-glacial nuclear reactor began without explicit permission from the government of Denmark, leading to a political dilemma for Prime Minister H. C. Hansen.[11]
The camp ran until 1967, when shifting icecaps made habitation impossible. The camp was subsequently abandoned and the facility's remains were buried by the icecaps and ultimately crushed.[12]
Camp Century was designed as an arctic subsurface camp and constructed by use of the cut-and-cover trenching technique. The layout of the camp consisted of a series of parallel main trenches in which buildings and other structures were housed. The camp had a design life span of 10 years with appropriate maintenance. It was permanently manned for 5 years and abandoned after 8 years.[13]
The trenches constructed in 1959 had compressed both vertically and horizontally to the extent that many had reached their design margins within 4 years. After that, extensive snow trimming was required to maintain the trenches.[14] The trenches were covered with a steel arch and the longest trench had a length of 1,100 feet (340 m), while its width and height were both 26 feet.[12]
The subsurface camp provided good protection from the elements and had modern bathroom, dining, and medical facilities. Prefabricated buildings were placed inside the trenches.[2] The camp maintained a number of vehicles and had plenty of storage for fuel and food. The reactor provided plenty of power and proved it could be installed, operated, and removed in such a remote location. It powered the base for over 3 years but was shut down due to the unexpected accelerated compression of the reactor trenches, in part due to the residual heat in the reactor area required to maintain the feed water pools.
0 comments:
Post a Comment