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Depth
3
bottom/max
3
ice/snow
3
top/min
AGE
2
Accelerator mass spectrometry (AMS)
2
Beryllium-10
2
ICEDRILL
2
Ice drill
2
Sampling/drilling ice
2
maximum/old
2
minimum/young
2
standard deviation
2
water
2
AN
1
AWI Arctic Land Expedition
1
Age
1
Akademii Nauk
1
Calculated
1
Correction
1
DRILL
1
Drilling/drill rig
1
GISP
1
GISP2
1
GRIP/GISP/NGRIP
1
Greenland
1
Greenland Ice Core Projects
1
Mass concentration
1
Mode
1
NGRIP
1
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Greenland
3
NGRIP
ice core
Greenland ice core
2
Journal of Glaciology
2
Arctic
1
Berichte zur Polar- und Meeresforschung
1
GISP
1
GRIP
1
Greenland Ice core Project
1
Greenland ice cores
1
Ice Sheet
1
North Greenland
1
North Greenland Ice Core Project
1
Reports on Polar and Marine Research
1
Severnaya Zemlya
1
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