Factors Controlling Methane in Arctic Lakes of Southwest Greenland.
We surveyed 15 lakes during the growing season of 2014 in Arctic lakes of southwest Greenland to determine which factors influence methane concentrations in these systems. Methane averaged 2.5 μmol L-1 in lakes, but varied a great deal across the landscape with lakes on older landscapes farther from...
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ftdoajarticles:oai:doaj.org/article:99ee666e38ec44e5835fd7bccf4d43f8 2023-05-15T14:50:48+02:00 Factors Controlling Methane in Arctic Lakes of Southwest Greenland. Robert M Northington Jasmine E Saros 2016-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0159642 https://doaj.org/article/99ee666e38ec44e5835fd7bccf4d43f8 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4959701?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0159642 https://doaj.org/article/99ee666e38ec44e5835fd7bccf4d43f8 PLoS ONE, Vol 11, Iss 7, p e0159642 (2016) Medicine R Science Q article 2016 ftdoajarticles https://doi.org/10.1371/journal.pone.0159642 2022-12-31T12:59:08Z We surveyed 15 lakes during the growing season of 2014 in Arctic lakes of southwest Greenland to determine which factors influence methane concentrations in these systems. Methane averaged 2.5 μmol L-1 in lakes, but varied a great deal across the landscape with lakes on older landscapes farther from the ice sheet margin having some of the highest values of methane reported in lakes in the northern hemisphere (125 μmol L-1). The most important factors influencing methane in Greenland lakes included ionic composition (SO4, Na, Cl) and chlorophyll a in the water column. DOC concentrations were also related to methane, but the short length of the study likely underestimated the influence and timing of DOC on methane concentrations in the region. Atmospheric methane concentrations are increasing globally, with freshwater ecosystems in northern latitudes continuing to serve as potentially large sources in the future. Much less is known about how freshwater lakes in Greenland fit in the global methane budget compared to other, more well-studied areas of the Arctic, hence our work provides essential data for a more complete view of this rapidly changing region. Article in Journal/Newspaper Arctic Greenland Ice Sheet Directory of Open Access Journals: DOAJ Articles Arctic Greenland PLOS ONE 11 7 e0159642 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Robert M Northington Jasmine E Saros Factors Controlling Methane in Arctic Lakes of Southwest Greenland. |
topic_facet |
Medicine R Science Q |
description |
We surveyed 15 lakes during the growing season of 2014 in Arctic lakes of southwest Greenland to determine which factors influence methane concentrations in these systems. Methane averaged 2.5 μmol L-1 in lakes, but varied a great deal across the landscape with lakes on older landscapes farther from the ice sheet margin having some of the highest values of methane reported in lakes in the northern hemisphere (125 μmol L-1). The most important factors influencing methane in Greenland lakes included ionic composition (SO4, Na, Cl) and chlorophyll a in the water column. DOC concentrations were also related to methane, but the short length of the study likely underestimated the influence and timing of DOC on methane concentrations in the region. Atmospheric methane concentrations are increasing globally, with freshwater ecosystems in northern latitudes continuing to serve as potentially large sources in the future. Much less is known about how freshwater lakes in Greenland fit in the global methane budget compared to other, more well-studied areas of the Arctic, hence our work provides essential data for a more complete view of this rapidly changing region. |
format |
Article in Journal/Newspaper |
author |
Robert M Northington Jasmine E Saros |
author_facet |
Robert M Northington Jasmine E Saros |
author_sort |
Robert M Northington |
title |
Factors Controlling Methane in Arctic Lakes of Southwest Greenland. |
title_short |
Factors Controlling Methane in Arctic Lakes of Southwest Greenland. |
title_full |
Factors Controlling Methane in Arctic Lakes of Southwest Greenland. |
title_fullStr |
Factors Controlling Methane in Arctic Lakes of Southwest Greenland. |
title_full_unstemmed |
Factors Controlling Methane in Arctic Lakes of Southwest Greenland. |
title_sort |
factors controlling methane in arctic lakes of southwest greenland. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2016 |
url |
https://doi.org/10.1371/journal.pone.0159642 https://doaj.org/article/99ee666e38ec44e5835fd7bccf4d43f8 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Ice Sheet |
genre_facet |
Arctic Greenland Ice Sheet |
op_source |
PLoS ONE, Vol 11, Iss 7, p e0159642 (2016) |
op_relation |
http://europepmc.org/articles/PMC4959701?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0159642 https://doaj.org/article/99ee666e38ec44e5835fd7bccf4d43f8 |
op_doi |
https://doi.org/10.1371/journal.pone.0159642 |
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PLOS ONE |
container_volume |
11 |
container_issue |
7 |
container_start_page |
e0159642 |
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