PIPERS: Role of Polynyas on the Atmospheric Budget of Methane and Carbon Dioxide
Coastal polynyas are areas of anomalous open water and thin ice in regions that are otherwise covered by sea ice. They frequently occur around the Antarctic continent in response to strong offshore katabatic wind stresses. The loss of heat from the open ocean to the cold atmosphere can enormously en...
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ftorbi:oai:orbi.ulg.ac.be:2268/232372 2024-04-21T07:52:32+00:00 PIPERS: Role of Polynyas on the Atmospheric Budget of Methane and Carbon Dioxide Sapart, C. Thornton, B. Crill, P. Jacques, Caroline Delille, Bruno Gkritzalis, Thanos Röckmann, Thomas van der Veen, C. Popa, E. Stammerjohn, Sharon Ackley, Stephen Loose, B Gartzman, Sam Guest, P. Tison, J.-L. FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège 2018-06-20 https://orbi.uliege.be/handle/2268/232372 en eng https://orbi.uliege.be/handle/2268/232372 info:hdl:2268/232372 Open Science Conference POLAR2018, Davos, Switzerland [CH], 18-23 June 2018 Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique conference paper not in proceedings http://purl.org/coar/resource_type/c_18cp info:eu-repo/semantics/conferencePaper 2018 ftorbi 2024-03-27T14:49:25Z Coastal polynyas are areas of anomalous open water and thin ice in regions that are otherwise covered by sea ice. They frequently occur around the Antarctic continent in response to strong offshore katabatic wind stresses. The loss of heat from the open ocean to the cold atmosphere can enormously enhance rates of ice production. In polynya areas, the coupling between the atmosphere, sea ice and ocean is complex, and the role of ice formation on the budget of the main climate forcing carbon gases remains unknown. During the PIPERS expedition on the N.B. Palmer from April to June 2017, we performed continuous measurements of methane and carbon dioxide concentrations in the atmosphere and in the surface water from New Zealand to the polynyas of the Ross Sea. Discrete sampling was carried out in parallel to calibrate the continuous systems and to later measure the stable isotope ratios of both gases in the water and in the air. The stable isotope data enable unravelling the pathways involved in gas formation and removal. While the concentrations of both gases were relatively low in the surface waters of polynyas, the preliminary atmospheric data show higher methane and carbon dioxide levels in the atmosphere at locations where sea ice formation was most intense. These data together with the isotopic ratios of both gases and with meteorological data will be discussed to better understand the role of sea ice formation on the exchange of climate forcing gases. Conference Object Antarc* Antarctic Ross Sea Sea ice University of Liège: ORBi (Open Repository and Bibliography) |
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Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Sapart, C. Thornton, B. Crill, P. Jacques, Caroline Delille, Bruno Gkritzalis, Thanos Röckmann, Thomas van der Veen, C. Popa, E. Stammerjohn, Sharon Ackley, Stephen Loose, B Gartzman, Sam Guest, P. Tison, J.-L. PIPERS: Role of Polynyas on the Atmospheric Budget of Methane and Carbon Dioxide |
topic_facet |
Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
Coastal polynyas are areas of anomalous open water and thin ice in regions that are otherwise covered by sea ice. They frequently occur around the Antarctic continent in response to strong offshore katabatic wind stresses. The loss of heat from the open ocean to the cold atmosphere can enormously enhance rates of ice production. In polynya areas, the coupling between the atmosphere, sea ice and ocean is complex, and the role of ice formation on the budget of the main climate forcing carbon gases remains unknown. During the PIPERS expedition on the N.B. Palmer from April to June 2017, we performed continuous measurements of methane and carbon dioxide concentrations in the atmosphere and in the surface water from New Zealand to the polynyas of the Ross Sea. Discrete sampling was carried out in parallel to calibrate the continuous systems and to later measure the stable isotope ratios of both gases in the water and in the air. The stable isotope data enable unravelling the pathways involved in gas formation and removal. While the concentrations of both gases were relatively low in the surface waters of polynyas, the preliminary atmospheric data show higher methane and carbon dioxide levels in the atmosphere at locations where sea ice formation was most intense. These data together with the isotopic ratios of both gases and with meteorological data will be discussed to better understand the role of sea ice formation on the exchange of climate forcing gases. |
author2 |
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège |
format |
Conference Object |
author |
Sapart, C. Thornton, B. Crill, P. Jacques, Caroline Delille, Bruno Gkritzalis, Thanos Röckmann, Thomas van der Veen, C. Popa, E. Stammerjohn, Sharon Ackley, Stephen Loose, B Gartzman, Sam Guest, P. Tison, J.-L. |
author_facet |
Sapart, C. Thornton, B. Crill, P. Jacques, Caroline Delille, Bruno Gkritzalis, Thanos Röckmann, Thomas van der Veen, C. Popa, E. Stammerjohn, Sharon Ackley, Stephen Loose, B Gartzman, Sam Guest, P. Tison, J.-L. |
author_sort |
Sapart, C. |
title |
PIPERS: Role of Polynyas on the Atmospheric Budget of Methane and Carbon Dioxide |
title_short |
PIPERS: Role of Polynyas on the Atmospheric Budget of Methane and Carbon Dioxide |
title_full |
PIPERS: Role of Polynyas on the Atmospheric Budget of Methane and Carbon Dioxide |
title_fullStr |
PIPERS: Role of Polynyas on the Atmospheric Budget of Methane and Carbon Dioxide |
title_full_unstemmed |
PIPERS: Role of Polynyas on the Atmospheric Budget of Methane and Carbon Dioxide |
title_sort |
pipers: role of polynyas on the atmospheric budget of methane and carbon dioxide |
publishDate |
2018 |
url |
https://orbi.uliege.be/handle/2268/232372 |
genre |
Antarc* Antarctic Ross Sea Sea ice |
genre_facet |
Antarc* Antarctic Ross Sea Sea ice |
op_source |
Open Science Conference POLAR2018, Davos, Switzerland [CH], 18-23 June 2018 |
op_relation |
https://orbi.uliege.be/handle/2268/232372 info:hdl:2268/232372 |
_version_ |
1796935757638664192 |