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Greenland
5
ICEDRILL
Ice drill
5
NGRIP
North Greenland Ice Core Project
5
NorthGRIP
5
Sampling/drilling ice
5
DEPTH
4
ice/snow
4
Age
3
Accumulation rate in ice equivalent per year
2
Annual layer thickness
2
GRIP/GISP/NGRIP
2
Greenland Ice Core Projects
2
water
2
δ18O
2
Temperature
1
firn
1
reconstructed
1
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