Sticking deep ice core drills: Why, and how to recover

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 reaso...

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Bibliographic Details
Main Authors: Niels S. Gundestrup, Sigfus J. Johnsen, Steffen B. Hansen, Hitoshi Shoji, Pavel Talalay, Frank Wilhelms
Format: Report
Language:English
Published: University of Copenhagen, Department of Geophysics/University of Copenhagen, Department of Geophysics/University of Copenhagen, Department of Geophysics/Kitami Institute of Technology/Department of Descriptive Geometry, St. Petersburg State Mining Institute/AWI, Colombusstrasse 2002
Subjects:
Greenland
Freed
Antarc*
Antarctica
EPICA
GISP
ice core
Memoirs of National Institute of Polar Research
NGRIP
Polar Research
Online Access:https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2441
http://id.nii.ac.jp/1291/00002441/
https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2441&item_no=1&attribute_id=18&file_no=1

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