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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 13, issue 1
Biogeosciences, 13, 323–340, 2016
https://doi.org/10.5194/bg-13-323-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 13, 323–340, 2016
https://doi.org/10.5194/bg-13-323-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 15 Jan 2016

Research article | 15 Jan 2016

Isotopic evidence for biogenic molecular hydrogen production in the Atlantic Ocean

S. Walter et al.
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ED: Publish subject to minor revisions (Editor review) (19 Dec 2015) by Gerhard Herndl
AR by Sylvia Walter on behalf of the Authors (20 Dec 2015)  Author's response    Manuscript
ED: Publish as is (27 Dec 2015) by Gerhard Herndl
Publications Copernicus
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Short summary
Oceans are a source of H2, an indirect greenhouse gas. Measurements constraining the temporal and spatial patterns of oceanic H2 emissions are sparse and although H2 is assumed to be produced mainly biologically, direct evidence for biogenic marine production was lacking. By analyzing the H2 isotopic composition (δD) we were able to constrain the global H2 budget in more detail, verify biogenic production and point to additional sources. We also showed that current models are reasonably working.
Oceans are a source of H2, an indirect greenhouse gas. Measurements constraining the temporal...
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