Topic
Drilling/drill rig
Sampling/drilling ice
102
GISP
89
AGE
62
DRILL
53
GRIP/GISP/NGRIP
48
Greenland Ice Core Projects
48
Greenland Ice Core Projects GRIP/GISP/NGRIP
47
ice/snow
37
DEPTH, ice/snow
36
GISP2
29
DEPTH
28
Age
24
GRIP
19
water
15
δ18O
14
δ18O, water
13
Calcium
12
Greenland
11
Calculated
10
Depth
10
Depth, bottom/max
10
Depth, top/min
10
Sulfate
10
bottom/max
10
top/min
10
GISP2-D
9
ISTUK electromechanical drill
9
Ammonium
8
Chloride
8
Magnesium
8
Nitrate
8
Potassium
8
Sodium ion
8
maximum/old
8
minimum/young
8
Age, maximum/old
7
Age, minimum/young
7
Event label
7
Accumulation of snow/ice per year
6
DATE/TIME
6
GISP2-B
6
Gas age
6
Ion chromatography
6
standard deviation
6
δ Deuterium
6
Age model
5
Hydrogen peroxide
5
ISTUK
5
-
4
more ...