Molecular-Multiproxy Assessment of Land-Derived Organic Matter Degradation Over Extensive Scales of the East Siberian Arctic Shelf Seas ...
Global warming triggers permafrost thaw, which increases the release of terrigenous organic matter (terr-OM) to the Arctic Ocean by coastal erosion and rivers. Terrigenous OM degradation in the Arctic Ocean contributes to greenhouse gas emissions and severe ocean acidification, yet the vulnerability...
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ftdatacite:10.3929/ethz-b-000591862 2024-04-28T08:06:32+00:00 Molecular-Multiproxy Assessment of Land-Derived Organic Matter Degradation Over Extensive Scales of the East Siberian Arctic Shelf Seas ... Matsubara, Felipe Wild, Birgit Martens, Jannik Andersson, August Wennström, R. Bröder, Lisa Dudarev, Oleg V. Semiletov, Igor Gustafsson, Örjan 2022 application/pdf https://dx.doi.org/10.3929/ethz-b-000591862 http://hdl.handle.net/20.500.11850/591862 en eng ETH Zurich article-journal Text ScholarlyArticle Journal Article 2022 ftdatacite https://doi.org/10.3929/ethz-b-000591862 2024-04-02T12:32:08Z Global warming triggers permafrost thaw, which increases the release of terrigenous organic matter (terr-OM) to the Arctic Ocean by coastal erosion and rivers. Terrigenous OM degradation in the Arctic Ocean contributes to greenhouse gas emissions and severe ocean acidification, yet the vulnerability of different terr-OM components is poorly resolved. Here, terr-OM degradation dynamics are studied with unprecedented spatial coverage over the World's largest shelf sea system—the East Siberian Arctic Shelf (ESAS), using a multi-proxy molecular biomarker approach. Mineral-surface-area-normalized concentrations of terr-OM compounds in surface sediments decreases offshore. Differences between terr-OM compound classes (lignin phenols, high-molecular weight [HMW] n-alkanes, n-alkanoic acids and n-alkanols, sterols, 3,5-dihydroxybenzoic acids, cutin acids) reflect contrasting influence of sources, propensity to microbial degradation and association with sedimenting particles, with lignin phenols disappearing 3-times ... : Global Biogeochemical Cycles, 36 (12) ... Article in Journal/Newspaper Arctic Arctic Ocean Global warming Ocean acidification permafrost DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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language |
English |
description |
Global warming triggers permafrost thaw, which increases the release of terrigenous organic matter (terr-OM) to the Arctic Ocean by coastal erosion and rivers. Terrigenous OM degradation in the Arctic Ocean contributes to greenhouse gas emissions and severe ocean acidification, yet the vulnerability of different terr-OM components is poorly resolved. Here, terr-OM degradation dynamics are studied with unprecedented spatial coverage over the World's largest shelf sea system—the East Siberian Arctic Shelf (ESAS), using a multi-proxy molecular biomarker approach. Mineral-surface-area-normalized concentrations of terr-OM compounds in surface sediments decreases offshore. Differences between terr-OM compound classes (lignin phenols, high-molecular weight [HMW] n-alkanes, n-alkanoic acids and n-alkanols, sterols, 3,5-dihydroxybenzoic acids, cutin acids) reflect contrasting influence of sources, propensity to microbial degradation and association with sedimenting particles, with lignin phenols disappearing 3-times ... : Global Biogeochemical Cycles, 36 (12) ... |
format |
Article in Journal/Newspaper |
author |
Matsubara, Felipe Wild, Birgit Martens, Jannik Andersson, August Wennström, R. Bröder, Lisa Dudarev, Oleg V. Semiletov, Igor Gustafsson, Örjan |
spellingShingle |
Matsubara, Felipe Wild, Birgit Martens, Jannik Andersson, August Wennström, R. Bröder, Lisa Dudarev, Oleg V. Semiletov, Igor Gustafsson, Örjan Molecular-Multiproxy Assessment of Land-Derived Organic Matter Degradation Over Extensive Scales of the East Siberian Arctic Shelf Seas ... |
author_facet |
Matsubara, Felipe Wild, Birgit Martens, Jannik Andersson, August Wennström, R. Bröder, Lisa Dudarev, Oleg V. Semiletov, Igor Gustafsson, Örjan |
author_sort |
Matsubara, Felipe |
title |
Molecular-Multiproxy Assessment of Land-Derived Organic Matter Degradation Over Extensive Scales of the East Siberian Arctic Shelf Seas ... |
title_short |
Molecular-Multiproxy Assessment of Land-Derived Organic Matter Degradation Over Extensive Scales of the East Siberian Arctic Shelf Seas ... |
title_full |
Molecular-Multiproxy Assessment of Land-Derived Organic Matter Degradation Over Extensive Scales of the East Siberian Arctic Shelf Seas ... |
title_fullStr |
Molecular-Multiproxy Assessment of Land-Derived Organic Matter Degradation Over Extensive Scales of the East Siberian Arctic Shelf Seas ... |
title_full_unstemmed |
Molecular-Multiproxy Assessment of Land-Derived Organic Matter Degradation Over Extensive Scales of the East Siberian Arctic Shelf Seas ... |
title_sort |
molecular-multiproxy assessment of land-derived organic matter degradation over extensive scales of the east siberian arctic shelf seas ... |
publisher |
ETH Zurich |
publishDate |
2022 |
url |
https://dx.doi.org/10.3929/ethz-b-000591862 http://hdl.handle.net/20.500.11850/591862 |
genre |
Arctic Arctic Ocean Global warming Ocean acidification permafrost |
genre_facet |
Arctic Arctic Ocean Global warming Ocean acidification permafrost |
op_doi |
https://doi.org/10.3929/ethz-b-000591862 |
_version_ |
1797575992018993152 |