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Recent studies have observed high methane concentrations in runoff water and the ambient air at various glacier sites, including the Greenland Ice Sheet, the glacier forefield in Svalbard, and the ice cap in Iceland. This study extends these findings to smaller mountain glaciers in Alaska. Methane a...
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2024
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Online Access: | https://doi.org/10.1038/s41598-024-56608-y https://pubmed.ncbi.nlm.nih.gov/38724590 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11082196/ |
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ftpubmed:38724590 2024-06-09T07:46:07+00:00 CH Konya, Keiko Sueyoshi, Tetsuo Iwahana, Go Morishita, Tomoaki Uetake, Jun Wakita, Masahide 2024 May 09 https://doi.org/10.1038/s41598-024-56608-y https://pubmed.ncbi.nlm.nih.gov/38724590 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11082196/ eng eng Nature Publishing Group https://doi.org/10.1038/s41598-024-56608-y https://pubmed.ncbi.nlm.nih.gov/38724590 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11082196/ © 2024. The Author(s). Sci Rep ISSN:2045-2322 Volume:14 Issue:1 Journal Article 2024 ftpubmed https://doi.org/10.1038/s41598-024-56608-y 2024-05-12T16:03:00Z Recent studies have observed high methane concentrations in runoff water and the ambient air at various glacier sites, including the Greenland Ice Sheet, the glacier forefield in Svalbard, and the ice cap in Iceland. This study extends these findings to smaller mountain glaciers in Alaska. Methane and carbon dioxide concentrations in the ambient air near the meltwater outlet, fluxes of these gases at the surface of runoff water and riverbank sediments, and dissolved methane content in the runoff water were measured at four glaciers. Three of the four glaciers showed conspicuous signals of methane emissions from runoff water, with the Castner Glacier terminus exhibiting a methane concentration three times higher than background levels, along with elevated dissolved methane levels in the runoff water. This study marks the detection of significant methane emissions from small mountain glacier runoff, contributing to the understanding that mountain glaciers also release methane into the atmosphere. Article in Journal/Newspaper glacier glacier glacier glacier glaciers Greenland Ice cap Ice Sheet Iceland Svalbard Alaska PubMed Central (PMC) Svalbard Greenland Scientific Reports 14 1 |
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PubMed Central (PMC) |
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ftpubmed |
language |
English |
description |
Recent studies have observed high methane concentrations in runoff water and the ambient air at various glacier sites, including the Greenland Ice Sheet, the glacier forefield in Svalbard, and the ice cap in Iceland. This study extends these findings to smaller mountain glaciers in Alaska. Methane and carbon dioxide concentrations in the ambient air near the meltwater outlet, fluxes of these gases at the surface of runoff water and riverbank sediments, and dissolved methane content in the runoff water were measured at four glaciers. Three of the four glaciers showed conspicuous signals of methane emissions from runoff water, with the Castner Glacier terminus exhibiting a methane concentration three times higher than background levels, along with elevated dissolved methane levels in the runoff water. This study marks the detection of significant methane emissions from small mountain glacier runoff, contributing to the understanding that mountain glaciers also release methane into the atmosphere. |
format |
Article in Journal/Newspaper |
author |
Konya, Keiko Sueyoshi, Tetsuo Iwahana, Go Morishita, Tomoaki Uetake, Jun Wakita, Masahide |
spellingShingle |
Konya, Keiko Sueyoshi, Tetsuo Iwahana, Go Morishita, Tomoaki Uetake, Jun Wakita, Masahide CH |
author_facet |
Konya, Keiko Sueyoshi, Tetsuo Iwahana, Go Morishita, Tomoaki Uetake, Jun Wakita, Masahide |
author_sort |
Konya, Keiko |
title |
CH |
title_short |
CH |
title_full |
CH |
title_fullStr |
CH |
title_full_unstemmed |
CH |
title_sort |
ch |
publisher |
Nature Publishing Group |
publishDate |
2024 |
url |
https://doi.org/10.1038/s41598-024-56608-y https://pubmed.ncbi.nlm.nih.gov/38724590 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11082196/ |
geographic |
Svalbard Greenland |
geographic_facet |
Svalbard Greenland |
genre |
glacier glacier glacier glacier glaciers Greenland Ice cap Ice Sheet Iceland Svalbard Alaska |
genre_facet |
glacier glacier glacier glacier glaciers Greenland Ice cap Ice Sheet Iceland Svalbard Alaska |
op_source |
Sci Rep ISSN:2045-2322 Volume:14 Issue:1 |
op_relation |
https://doi.org/10.1038/s41598-024-56608-y https://pubmed.ncbi.nlm.nih.gov/38724590 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11082196/ |
op_rights |
© 2024. The Author(s). |
op_doi |
https://doi.org/10.1038/s41598-024-56608-y |
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Scientific Reports |
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14 |
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1 |
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1801375873571487744 |