National Institute of Polar Research
National Institute of Polar Research
Institute of Low Temperature Science, Hokkaido University
Institute of Low Temperature Science, Hokkaido University
Faculty of Engineering, Hokkaido University
Geosystems Inc.
Geo Tecs Co. Ltd.
Geo Tecs Co. Ltd.
National Institute of Polar Research
A deep ice coring system, which is to be used a top the Queen Maud Land ice sheet in 1994-1995 with a plan named "Dome Project", has been developed since 1988. A mechanical system was adopted because of its less power consumption and smaller size compared with a thermal system. Experiments were done for mechanisms of ice cutting, chip transportation, chip storage, antitorque, monitoring sensors, and winch control with a 20-m drill experiment tower. Experiments were also done in Antarctica. This is an interim report of the development of the JARE deep ice coring system.