Sticking deep ice core drills: Why and how to recover

• Main Authors: Gundestrup, Niels S., Johnsen, Sigfus J., Hansen, Steffen B., Shoji, Hitoshi, Talalay, Pavel, Wilhelms, Frank
• Language: English
• Published: 国立極地研究所 2002
• Subjects: Greenland; Freed; Antarc*; Antarctica; EPICA; GISP; ice core; Memoirs of National Institute of Polar Research; NGRIP; Polar Research
• Online Access: https://kitami-it.repo.nii.ac.jp/record/7200/files/4436.pdf

The GISP deep drill became stuck in 1981, but was free the following year. The NGRIP/EPICA deep drill has suffered from two big setbacks : The drill is stuck both at NGRIP in Greenland and at Dome C in Antarctica. Both events occurred in a period with routine drilling and high productivity. The reas...