Seasonal increase of methane emissions linked to warming in Siberian tundra
While increasing methane emissions from thawing permafrost are anticipated to be a major climate feedback, no observational evidence for such an increase has previously been documented in the literature. Here we report a trend of increasing methane emissions for the early summer months of June and J...
Published in: | Nature Climate Change |
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2022
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ftgfzpotsdam:oai:gfzpublic.gfz-potsdam.de:item_5013390 2023-05-15T14:54:07+02:00 Seasonal increase of methane emissions linked to warming in Siberian tundra Rößger, N. Sachs, T. Wille, C. Boike, J. Kutzbach, L. 2022 application/pdf https://gfzpublic.gfz-potsdam.de/pubman/item/item_5013390 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5013390_2/component/file_5014049/5013390.pdf unknown info:eu-repo/semantics/altIdentifier/doi/10.1038/s41558-022-01512-4 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5013390 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5013390_2/component/file_5014049/5013390.pdf info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ CC-BY Nature Climate Change info:eu-repo/semantics/article 2022 ftgfzpotsdam https://doi.org/10.1038/s41558-022-01512-4 2022-11-28T00:31:48Z While increasing methane emissions from thawing permafrost are anticipated to be a major climate feedback, no observational evidence for such an increase has previously been documented in the literature. Here we report a trend of increasing methane emissions for the early summer months of June and July at a permafrost site in the Lena River Delta, on the basis of the longest set of eddy covariance methane flux data in the Arctic. Along with a strong air temperature rise of 0.3 ± 0.1 °C yr−1 in June, which corresponds to an earlier warming of 11 d, the methane emissions in June and July have increased by roughly 1.9 ± 0.7% yr−1 since 2004. Although the tundra’s maximum source strength in August has not yet changed, this increase in early summer methane emissions shows that atmospheric warming has begun to considerably affect the methane flux dynamics of permafrost-affected ecosystems in the Arctic. Article in Journal/Newspaper Arctic lena river permafrost Tundra GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) Arctic Nature Climate Change 12 11 1031 1036 |
institution |
Open Polar |
collection |
GFZpublic (German Research Centre for Geosciences, Helmholtz-Zentrum Potsdam) |
op_collection_id |
ftgfzpotsdam |
language |
unknown |
description |
While increasing methane emissions from thawing permafrost are anticipated to be a major climate feedback, no observational evidence for such an increase has previously been documented in the literature. Here we report a trend of increasing methane emissions for the early summer months of June and July at a permafrost site in the Lena River Delta, on the basis of the longest set of eddy covariance methane flux data in the Arctic. Along with a strong air temperature rise of 0.3 ± 0.1 °C yr−1 in June, which corresponds to an earlier warming of 11 d, the methane emissions in June and July have increased by roughly 1.9 ± 0.7% yr−1 since 2004. Although the tundra’s maximum source strength in August has not yet changed, this increase in early summer methane emissions shows that atmospheric warming has begun to considerably affect the methane flux dynamics of permafrost-affected ecosystems in the Arctic. |
format |
Article in Journal/Newspaper |
author |
Rößger, N. Sachs, T. Wille, C. Boike, J. Kutzbach, L. |
spellingShingle |
Rößger, N. Sachs, T. Wille, C. Boike, J. Kutzbach, L. Seasonal increase of methane emissions linked to warming in Siberian tundra |
author_facet |
Rößger, N. Sachs, T. Wille, C. Boike, J. Kutzbach, L. |
author_sort |
Rößger, N. |
title |
Seasonal increase of methane emissions linked to warming in Siberian tundra |
title_short |
Seasonal increase of methane emissions linked to warming in Siberian tundra |
title_full |
Seasonal increase of methane emissions linked to warming in Siberian tundra |
title_fullStr |
Seasonal increase of methane emissions linked to warming in Siberian tundra |
title_full_unstemmed |
Seasonal increase of methane emissions linked to warming in Siberian tundra |
title_sort |
seasonal increase of methane emissions linked to warming in siberian tundra |
publishDate |
2022 |
url |
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5013390 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5013390_2/component/file_5014049/5013390.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic lena river permafrost Tundra |
genre_facet |
Arctic lena river permafrost Tundra |
op_source |
Nature Climate Change |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41558-022-01512-4 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5013390 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5013390_2/component/file_5014049/5013390.pdf |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41558-022-01512-4 |
container_title |
Nature Climate Change |
container_volume |
12 |
container_issue |
11 |
container_start_page |
1031 |
op_container_end_page |
1036 |
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1766325803218370560 |