First observation of direct methane emission to the atmosphere from the subglacial domain of the Greenland Ice Sheet

During a 2016 field expedition to the West Greenland Ice Sheet, a striking observation of significantly elevated CH4 concentrations of up to 15 times the background atmospheric concentration were measured directly in the air expelled with meltwater at a subglacial discharge point from the Greenland...

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Published in:Scientific Reports
Main Authors: Christiansen, Jesper Riis, Jørgensen, Christian Juncher
Format: Text
Language:English
Published: Nature Publishing Group UK 2018
Subjects:
Article
Arctic
Greenland
greenlandic
Ice Sheet
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6226494/
http://www.ncbi.nlm.nih.gov/pubmed/30413774
https://doi.org/10.1038/s41598-018-35054-7
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spelling ftpubmed:oai:pubmedcentral.nih.gov:6226494 2023-05-15T15:01:03+02:00 First observation of direct methane emission to the atmosphere from the subglacial domain of the Greenland Ice Sheet Christiansen, Jesper Riis Jørgensen, Christian Juncher 2018-11-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6226494/ http://www.ncbi.nlm.nih.gov/pubmed/30413774 https://doi.org/10.1038/s41598-018-35054-7 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6226494/ http://www.ncbi.nlm.nih.gov/pubmed/30413774 http://dx.doi.org/10.1038/s41598-018-35054-7 © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2018 ftpubmed https://doi.org/10.1038/s41598-018-35054-7 2018-11-18T02:16:06Z During a 2016 field expedition to the West Greenland Ice Sheet, a striking observation of significantly elevated CH4 concentrations of up to 15 times the background atmospheric concentration were measured directly in the air expelled with meltwater at a subglacial discharge point from the Greenland Ice Sheet. The range of hourly subglacial CH4 flux rate through the discharge point was estimated to be 3.1 to 134 g CH4 hr−1. These measurements are the first observations of direct emissions of CH4 from the subglacial environment under the Greenlandic Ice Sheet to the atmosphere and indicate a novel emission pathway of CH4 that is currently a non-quantified component of the Arctic CH4 budget. Text Arctic Greenland greenlandic Ice Sheet PubMed Central (PMC) Arctic Greenland Scientific Reports 8 1
institution Open Polar
collection PubMed Central (PMC)
op_collection_id ftpubmed
language English
topic Article
spellingShingle Article
Christiansen, Jesper Riis
Jørgensen, Christian Juncher
First observation of direct methane emission to the atmosphere from the subglacial domain of the Greenland Ice Sheet
topic_facet Article
description During a 2016 field expedition to the West Greenland Ice Sheet, a striking observation of significantly elevated CH4 concentrations of up to 15 times the background atmospheric concentration were measured directly in the air expelled with meltwater at a subglacial discharge point from the Greenland Ice Sheet. The range of hourly subglacial CH4 flux rate through the discharge point was estimated to be 3.1 to 134 g CH4 hr−1. These measurements are the first observations of direct emissions of CH4 from the subglacial environment under the Greenlandic Ice Sheet to the atmosphere and indicate a novel emission pathway of CH4 that is currently a non-quantified component of the Arctic CH4 budget.
format Text
author Christiansen, Jesper Riis
Jørgensen, Christian Juncher
author_facet Christiansen, Jesper Riis
Jørgensen, Christian Juncher
author_sort Christiansen, Jesper Riis
title First observation of direct methane emission to the atmosphere from the subglacial domain of the Greenland Ice Sheet
title_short First observation of direct methane emission to the atmosphere from the subglacial domain of the Greenland Ice Sheet
title_full First observation of direct methane emission to the atmosphere from the subglacial domain of the Greenland Ice Sheet
title_fullStr First observation of direct methane emission to the atmosphere from the subglacial domain of the Greenland Ice Sheet
title_full_unstemmed First observation of direct methane emission to the atmosphere from the subglacial domain of the Greenland Ice Sheet
title_sort first observation of direct methane emission to the atmosphere from the subglacial domain of the greenland ice sheet
publisher Nature Publishing Group UK
publishDate 2018
url http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6226494/
http://www.ncbi.nlm.nih.gov/pubmed/30413774
https://doi.org/10.1038/s41598-018-35054-7
geographic Arctic
Greenland
geographic_facet Arctic
Greenland
genre Arctic
Greenland
greenlandic
Ice Sheet
genre_facet Arctic
Greenland
greenlandic
Ice Sheet
op_relation http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6226494/
http://www.ncbi.nlm.nih.gov/pubmed/30413774
http://dx.doi.org/10.1038/s41598-018-35054-7
op_rights © The Author(s) 2018
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
op_rightsnorm CC-BY
op_doi https://doi.org/10.1038/s41598-018-35054-7
container_title Scientific Reports
container_volume 8
container_issue 1
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