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GRIP/GISP/NGRIP
12
Greenland
Greenland Ice Core Projects
12
Sampling/drilling ice
12
ice/snow
DEPTH
11
Age
9
Density
9
GISP
9
SNOWPIT
9
Snow pit
9
mass density
9
reference
9
water
9
δ18O
9
see comment
8
GRIP
3
ISTUK
3
ISTUK electromechanical drill
3
AGE
2
Air content
1
BARO
1
Barometer
1
Calcium cation
1
Chloride anion
1
Chromatographic
1
Crystal size
1
Depth
1
Diameter
1
Epoch
1
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