Journal
ANNALS OF GLACIOLOGY
Volume 55, Issue 68, Pages 271-284Publisher
INT GLACIOL SOC
DOI: 10.3189/2014AoG68A038
Keywords
ice core; ice coring; ice engineering
Funding
- Belgium (FNRS-CFB)
- Belgium (FWO)
- Canada (NRCan/GSC)
- China (CAS)
- Denmark (FIST)
- France (IPEV)
- France (CNRS/INSU)
- France (CEA)
- France (ANR)
- Germany (AWI)
- Iceland (RannIs)
- Japan (NIPR)
- Korea (KOPRI)
- The Netherlands (NWO/ALW)
- Sweden (VR)
- Switzerland (SNF)
- United Kingdom (NERC)
- USA (US NSF, Office of Polar Programs)
- Australian Antarctic Division
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Several recent projects associated with the IPICS (International Partnerships in Ice Core Sciences) 2k array have demanded the recovery of ice core to depths in excess of several hundred metres (e.g. Flade Isblink, Greenland (2006), Aurora Basin, Antarctica (2008/09), NEEM, Greenland (2011), Aurora Basin North (2013/14) and Renland ice cap, Greenland (2015)). These projects require that the overall system weight is low, that the ability to set up and operate are within the limitations of a small-camp environment and that the overall logistical and transportation costs are kept to a minimum. Using these criteria, a new drilling system capable of drilling >400 m depth was seen as a useful future development. Here we report on a new intermediate-depth drilling system designed to recover high-quality 98 mm diameter ice cores from close to surface down to depths of 1000 m by two or more operators in a small deep-field camp environment. The total weight of the system on the snow surface is similar to 490 kg, of which the intermediate-depth winch is the single heaviest component at 305 kg with 1000 m of cable.
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