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GRIP/GISP/NGRIP
10
Greenland Ice Core Projects
10
Sampling/drilling ice
10
water
10
δ18O
Greenland
9
Age
8
DRILL
7
Drilling/drill rig
7
GRIP
7
DEPTH
2
GISP
2
ICEDRILL
2
ISTUK
2
ISTUK electromechanical drill
2
Ice drill
2
NGRIP
2
North Greenland Ice Core Project
2
NorthGRIP
2
ice/snow
2
GISP2
1
GISP2-B
1
GRIP891
1
GRIP892
1
GRIP893
1
GRIP912
1
GRIP913
1
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