The Hans Tausen drill: Design, performance, further developments and som lessons learned
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The Hans Tausen drill : Design, performance, further developments and som lessons learned. / Johnsen, Sigfus Johann; Dahl-Jensen, Dorthe; Steffensen, Jørgen Peder; Popp, Trevor James; Hansen, Bo S.; Sheldon, Simon; Journé, P.; Laurent, A.; Alemany, O.; Rufli, H.; Schwander, J.; Azuma, N.; Motoyama, H.; Talalay, P.; Thorsteinsson, T.; Wilhelms, F.; Zagorodnov, V.
In: Annals of Glaciology, Vol. 47, No. 1, 2007, p. 89-98.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The Hans Tausen drill
T2 - Design, performance, further developments and som lessons learned
AU - Johnsen, Sigfus Johann
AU - Dahl-Jensen, Dorthe
AU - Steffensen, Jørgen Peder
AU - Popp, Trevor James
AU - Hansen, Bo S.
AU - Sheldon, Simon
AU - Journé, P.
AU - Laurent, A.
AU - Alemany, O.
AU - Rufli, H.
AU - Schwander, J.
AU - Azuma, N.
AU - Motoyama, H.
AU - Talalay, P.
AU - Thorsteinsson, T.
AU - Wilhelms, F.
AU - Zagorodnov, V.
PY - 2007
Y1 - 2007
N2 - In the mid-1990s, excellent results from the GRIP and GISP2 deep drilling projects in Greenland opened up funding for continued ice-coring efforts in Antarctica (EPICA) and Greenland (NorthGRIP). The Glaciology Group of the Niels Bohr Institute, University of Copenhagen, was assigned the task of providing drilling capability for these projects, as it had done for the GRIP project. The group decided to further simplify existing deep drill designs for better reliability and ease of handling. The drill design decided upon was successfully tested on Hans Tausen Ice Cap, Peary Land, Greenland, in 1995. The 5.0 m long Hans Tausen (HT) drill was a prototype for the ~11 m long EPICA and NorthGRIP versions of the drill which were mechanically identical to the HT drill except for a much longer core barrel and chips chamber. These drills could deliver up to 4 m long ice cores after some design improvements had been introduced. The Berkner Island (Antarctica) drill is also an extended HT drill capable of drilling 2 m long cores. The success of the mechanical design of the HT drill is manifested by over 12 km of good-quality ice cores drilled by the HT drill and its derivatives since 1995. Udgivelsesdato: december
AB - In the mid-1990s, excellent results from the GRIP and GISP2 deep drilling projects in Greenland opened up funding for continued ice-coring efforts in Antarctica (EPICA) and Greenland (NorthGRIP). The Glaciology Group of the Niels Bohr Institute, University of Copenhagen, was assigned the task of providing drilling capability for these projects, as it had done for the GRIP project. The group decided to further simplify existing deep drill designs for better reliability and ease of handling. The drill design decided upon was successfully tested on Hans Tausen Ice Cap, Peary Land, Greenland, in 1995. The 5.0 m long Hans Tausen (HT) drill was a prototype for the ~11 m long EPICA and NorthGRIP versions of the drill which were mechanically identical to the HT drill except for a much longer core barrel and chips chamber. These drills could deliver up to 4 m long ice cores after some design improvements had been introduced. The Berkner Island (Antarctica) drill is also an extended HT drill capable of drilling 2 m long cores. The success of the mechanical design of the HT drill is manifested by over 12 km of good-quality ice cores drilled by the HT drill and its derivatives since 1995. Udgivelsesdato: december
U2 - 10.3189/172756407786857686
DO - 10.3189/172756407786857686
M3 - Journal article
VL - 47
SP - 89
EP - 98
JO - Annals of Glaciology
JF - Annals of Glaciology
SN - 0260-3055
IS - 1
ER -
ID: 9971806