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Ice and Permafrost
4
Snow
4
CARBON MONOXIDE
3
SURFACE WATERS
3
TROPOSPHERE
3
*ARCTIC REGIONS
2
*CARBON DIOXIDE
2
*GASES
2
*SEA ICE
2
CARBON DIOXIDE
2
EXCHANGE
2
Hydrology
2
Limnology and Potamology
2
SOILS
2
TUNDRA
2
*Subarctic regions
1
AIR
1
ARCTIC OCEAN
1
ARCTIC REGIONS
1
Atmospheric Physics
1
BERING SEA
1
BRINES
1
DYNAMICS
1
HYDROCARBONS
1
HYDROGEN
1
INTERFACES
1
MEASUREMENT
1
NITROGEN OXIDES
1
OCEANS
1
PARTIAL PRESSURE
1
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