Earth & Environmental Sciences
tundra
100%
permafrost
63%
shrub
51%
vegetation
47%
ungulate
29%
glacial deposit
28%
cordillera
27%
ice
26%
geomorphology
24%
floodplain
22%
pond
21%
surface water
21%
land cover
20%
wetland
19%
valley
17%
water quality
16%
sedge
16%
open water
15%
detection
14%
subsidence
12%
chemical
12%
warming
12%
lake basin
10%
biome
10%
erosion
10%
Arctic ecosystem
9%
disturbance
9%
degradation
8%
trend
8%
meltwater
7%
sedimentation
7%
river
7%
effect
7%
visible spectrum
6%
summer
6%
river terrace
6%
ice ridge
6%
geomorphological feature
6%
mass wasting
6%
heave
6%
environmental research
6%
lake
5%
neotectonics
5%
trajectory
5%
volume change
5%
permafrost ecosystem
5%
Landsat
5%
water body
5%
carbon storage
5%
isotope
5%
Agriculture & Biology
permafrost
76%
tundra
64%
Arctic region
41%
ecological succession
33%
lowlands
27%
vegetation
21%
ice
10%
Sphagnum
8%
Cyperaceae
7%
ecosystems
7%
shrubs
5%
soil heating
5%
Engineering & Materials Science
Permafrost
51%
Wetlands
38%
Ice
12%
Ecosystems
9%
Surface waters
7%
Temperature
6%
Lichens
5%