Agriculture & Biology
bubbles
85%
methane production
80%
Arctic region
79%
lakes
61%
methane
51%
carbon radioisotopes
21%
permafrost
11%
oxidation
11%
stable isotopes
7%
ice
7%
wetlands
7%
sediments
6%
organic matter
6%
carbon dioxide
5%
acetates
5%
gases
5%
fermentation
5%
winter
4%
degradation
4%
Physics & Astronomy
lakes
100%
methane
68%
bubbles
57%
boiling
33%
point sources
24%
lake ice
17%
wetlands
15%
permafrost
13%
oxidation
12%
fermentation
11%
winter
10%
refueling
10%
sediments
10%
polar regions
9%
margins
9%
acetates
9%
methylidyne
8%
erosion
8%
depletion
7%
isotopes
7%
degradation
6%
gases
4%
Earth & Environmental Sciences
bubble
67%
methane
57%
lake
44%
point source
24%
isotopic composition
21%
ice lake
11%
thermokarst
11%
oxidation
10%
flux measurement
9%
methanogenesis
9%
permafrost
8%
fermentation
7%
acetate
7%
stable isotope
7%
wetland
6%
erosion
5%
organic matter
5%
degradation
5%
winter
5%
gas
4%
sediment
4%
distribution
2%
rate
2%
Engineering & Materials Science
Lakes
88%
Methane
70%
Chemical analysis
14%
Oxidation
13%
Fluxes
12%
Wetlands
11%
Permafrost
10%
Biological materials
9%
Fueling
9%
Sediments
9%
Isotopes
9%
Fermentation
8%
Ice
7%
Erosion
7%
Degradation
5%
Gases
4%
Chemical Compounds
Bubble
79%
Methane
59%
Bubbling
37%
Stable Isotope
16%
Organic Matter
16%
Fermentation
14%
Oxidation Reaction
13%
Acetate
10%
Strength
9%
Gas
7%
Reduction
6%