Methane release from open leads and new ice following an Arctic winter storm event
peer reviewed We examine an Arctic winter storm event, which led to ice break–up, the formation of open leads, and the subsequent freezing of these leads. The methane (CH4) concentration in under–ice surface water before and during the storm event was 8–12 nmol L−1, which resulted in a potential sea...
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Language: | English |
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2022
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Online Access: | https://orbi.uliege.be/handle/2268/299601 https://doi.org/10.1016/j.polar.2022.100874 |
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ftorbi:oai:orbi.ulg.ac.be:2268/299601 2024-10-13T14:04:51+00:00 Methane release from open leads and new ice following an Arctic winter storm event Silyakova, Anna Nomura, Daiki Kotovitch, Marie Fransson, Agneta Delille, Bruno Chierici, Melissa Granskog, Mats A. FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège 2022-09 https://orbi.uliege.be/handle/2268/299601 https://doi.org/10.1016/j.polar.2022.100874 en eng Elsevier B.V. https://api.elsevier.com/content/article/PII:S1873965222001396?httpAccept=text/xml urn:issn:1873-9652 https://orbi.uliege.be/handle/2268/299601 info:hdl:2268/299601 doi:10.1016/j.polar.2022.100874 embargoed access http://purl.org/coar/access_right/c_f1cf info:eu-repo/semantics/embargoedAccess Polar Science, 33, 100874 (2022-09) Arctic ocean Methane Sea ice Storm Wintertime Ecology Evolution Behavior and Systematics Aquatic Science Earth and Planetary Sciences (all) General Earth and Planetary Sciences Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2022 ftorbi https://doi.org/10.1016/j.polar.2022.100874 2024-09-27T07:01:53Z peer reviewed We examine an Arctic winter storm event, which led to ice break–up, the formation of open leads, and the subsequent freezing of these leads. The methane (CH4) concentration in under–ice surface water before and during the storm event was 8–12 nmol L−1, which resulted in a potential sea–to–air CH4 flux ranging from +0.2 to +2.1 mg CH4 m−2 d−1 in open leads. CH4 ventilation between seawater and atmosphere occurred when both open water fraction and wind speed increased. Over the nine days after the storm, sea ice grew 27 cm thick. Initially, CH4 concentrations in the sea ice brine were above the equilibrium with the atmosphere. As the ice grew thicker, most of the CH4 was lost from upper layers of sea ice into the atmosphere, implying continued CH4 evasion after the leads were ice–covered. This suggests that wintertime CH4 emissions need to be better constrained. Article in Journal/Newspaper Arctic Arctic Ocean Polar Science Polar Science Sea ice University of Liège: ORBi (Open Repository and Bibliography) Arctic Arctic Ocean Polar Science 33 100874 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Arctic ocean Methane Sea ice Storm Wintertime Ecology Evolution Behavior and Systematics Aquatic Science Earth and Planetary Sciences (all) General Earth and Planetary Sciences Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Arctic ocean Methane Sea ice Storm Wintertime Ecology Evolution Behavior and Systematics Aquatic Science Earth and Planetary Sciences (all) General Earth and Planetary Sciences Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Silyakova, Anna Nomura, Daiki Kotovitch, Marie Fransson, Agneta Delille, Bruno Chierici, Melissa Granskog, Mats A. Methane release from open leads and new ice following an Arctic winter storm event |
topic_facet |
Arctic ocean Methane Sea ice Storm Wintertime Ecology Evolution Behavior and Systematics Aquatic Science Earth and Planetary Sciences (all) General Earth and Planetary Sciences Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed We examine an Arctic winter storm event, which led to ice break–up, the formation of open leads, and the subsequent freezing of these leads. The methane (CH4) concentration in under–ice surface water before and during the storm event was 8–12 nmol L−1, which resulted in a potential sea–to–air CH4 flux ranging from +0.2 to +2.1 mg CH4 m−2 d−1 in open leads. CH4 ventilation between seawater and atmosphere occurred when both open water fraction and wind speed increased. Over the nine days after the storm, sea ice grew 27 cm thick. Initially, CH4 concentrations in the sea ice brine were above the equilibrium with the atmosphere. As the ice grew thicker, most of the CH4 was lost from upper layers of sea ice into the atmosphere, implying continued CH4 evasion after the leads were ice–covered. This suggests that wintertime CH4 emissions need to be better constrained. |
author2 |
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège |
format |
Article in Journal/Newspaper |
author |
Silyakova, Anna Nomura, Daiki Kotovitch, Marie Fransson, Agneta Delille, Bruno Chierici, Melissa Granskog, Mats A. |
author_facet |
Silyakova, Anna Nomura, Daiki Kotovitch, Marie Fransson, Agneta Delille, Bruno Chierici, Melissa Granskog, Mats A. |
author_sort |
Silyakova, Anna |
title |
Methane release from open leads and new ice following an Arctic winter storm event |
title_short |
Methane release from open leads and new ice following an Arctic winter storm event |
title_full |
Methane release from open leads and new ice following an Arctic winter storm event |
title_fullStr |
Methane release from open leads and new ice following an Arctic winter storm event |
title_full_unstemmed |
Methane release from open leads and new ice following an Arctic winter storm event |
title_sort |
methane release from open leads and new ice following an arctic winter storm event |
publisher |
Elsevier B.V. |
publishDate |
2022 |
url |
https://orbi.uliege.be/handle/2268/299601 https://doi.org/10.1016/j.polar.2022.100874 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Polar Science Polar Science Sea ice |
genre_facet |
Arctic Arctic Ocean Polar Science Polar Science Sea ice |
op_source |
Polar Science, 33, 100874 (2022-09) |
op_relation |
https://api.elsevier.com/content/article/PII:S1873965222001396?httpAccept=text/xml urn:issn:1873-9652 https://orbi.uliege.be/handle/2268/299601 info:hdl:2268/299601 doi:10.1016/j.polar.2022.100874 |
op_rights |
embargoed access http://purl.org/coar/access_right/c_f1cf info:eu-repo/semantics/embargoedAccess |
op_doi |
https://doi.org/10.1016/j.polar.2022.100874 |
container_title |
Polar Science |
container_volume |
33 |
container_start_page |
100874 |
_version_ |
1812810545604067328 |