Journal article 1531 views
Enhancing Surface Methane Fluxes from an Oligotrophic Lake: Exploring the Microbubble Hypothesis
Daniel F. McGinnis,
Georgiy Kirillin,
Kam Tang
,
Sabine Flury,
Pascal Bodmer,
Christof Engelhardt,
Peter Casper,
Hans-Peter Grossart
Environmental Science & Technology, Volume: 49, Issue: 2, Pages: 873 - 880
Swansea University Author:
Kam Tang
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DOI (Published version): 10.1021/es503385d
Abstract
Enhancing Surface Methane Fluxes from an Oligotrophic Lake: Exploring the Microbubble Hypothesis
Published in: | Environmental Science & Technology |
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Published: |
2015
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URI: | https://cronfa.swan.ac.uk/Record/cronfa20015 |
Item Description: |
Water-air exchange of carbon dioxide and methane is an important component of the global carbon cycle. We showed that methane flux across the water-air interface was 2.5 times stronger than carbon dioxide flux, and was also higher than that predicted by Fickian diffusion. Using a systematic analysis approach we showed that microbubbles originating from atmospheric bubble entrainment and/or gas supersaturation stripped the water of methane and greatly enhanced methane outflux. The results have significant implications for greenhouse gas emission from aquatic environments and climate regulation. |
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College: |
Faculty of Science and Engineering |
Issue: |
2 |
Start Page: |
873 |
End Page: |
880 |