Topic
DEPTH
30
Greenland
29
ice/snow
29
Sampling/drilling ice
28
ICEDRILL
18
Ice drill
18
NorthGRIP
14
ISTUK
13
ISTUK electromechanical drill
13
NGRIP
13
water
13
δ18O
13
AGE
12
DYE
10
GRIP/GISP/NGRIP
10
Greenland Ice Core Projects
10
North Greenland Ice Core Project
10
error
10
GRIP
9
DYE-3
6
Age
5
Calcium
5
Hydrogen ion concentration
4
Ice core
4
Maximum Counting Error
4
d18O
4
Comment
3
EGRIP
3
East Greenland Ice-core Project
3
GICC05
3
Greenland Ice Core Chronology 2005
3
Greenland ice cores
3
Isotope ratio mass spectrometry
3
annual layers
3
Ammonium
2
DYE-3_18C
2
DYE-3_4B
2
Depth
2
Gas age
2
Magnesium
2
NGRIP1
2
NGRIP2
2
Sodium
2
impurities
2
reference
2
14C calibrated
1
14C conventional
1
Accumulation rate in ice equivalent per year
1
Age model
1
Aluminium
1
more ...