Earth & Environmental Sciences
ice core
100%
isotopic composition
79%
isotope
69%
measuring
62%
air
50%
neem
27%
firn
22%
fractionation
21%
argon
18%
gas
17%
ice
17%
hydrological cycle
16%
vegetation
15%
bubble
15%
tracer
13%
biological cycle
12%
atmospheric component
11%
membrane
11%
Heinrich event
11%
oxygen
10%
climatic effect
10%
hydrological change
10%
air bubble
10%
isotopic fractionation
10%
climate variation
10%
photochemistry
10%
climate
9%
helium
9%
extraction method
9%
thesis
9%
sealing
8%
automation
8%
transport process
8%
biological processes
8%
photosynthesis
8%
oxygen isotope
8%
ice sheet
7%
general circulation model
7%
tropics
7%
water
7%
mass balance
7%
method
7%
stable isotope
7%
mass spectrometry
7%
hydrology
7%
modeling
7%
boundary condition
6%
carbon dioxide
6%
sea level
6%
Holocene
6%
melt
6%
timescale
6%
permeability
5%
nitrogen
5%
indicator
5%
atmosphere
4%
ocean
4%
world
4%
land
4%
loss
4%
simulation
3%
test
3%
distribution
3%
analysis
2%