Southern Ocean CO2 sink: The contribution of the sea ice
Identifieur interne : 003D21 ( Main/Exploration ); précédent : 003D20; suivant : 003D22Southern Ocean CO2 sink: The contribution of the sea ice
Auteurs : Bruno Delille [Belgique] ; Martin Vancoppenolle [France] ; Nicolas-Xavier Geilfus [Danemark] ; Bronte Tilbrook [Australie] ; Delphine Lannuzel [Australie] ; Véronique Schoemann [Belgique] ; Sylvie Becquevort [Belgique] ; Gauthier Carnat [Belgique] ; Daniel Delille [France] ; Christiane Lancelot [Belgique] ; Lei Chou [Belgique] ; Gerhard S. Dieckmann [Allemagne] ; Jean-Louis Tison [Belgique]Source :
- Journal of Geophysical Research: Oceans [ 2169-9275 ] ; 2014-09.
Abstract
We report first direct measurements of the partial pressure of CO2 (pCO2) within Antarctic pack sea ice brines and related CO2 fluxes across the air‐ice interface. From late winter to summer, brines encased in the ice change from a CO2 large oversaturation, relative to the atmosphere, to a marked undersaturation while the underlying oceanic waters remains slightly oversaturated. The decrease from winter to summer of pCO2 in the brines is driven by dilution with melting ice, dissolution of carbonate crystals, and net primary production. As the ice warms, its permeability increases, allowing CO2 transfer at the air‐sea ice interface. The sea ice changes from a transient source to a sink for atmospheric CO2. We upscale these observations to the whole Antarctic sea ice cover using the NEMO‐LIM3 large‐scale sea ice‐ocean and provide first estimates of spring and summer CO2 uptake from the atmosphere by Antarctic sea ice. Over the spring‐summer period, the Antarctic sea ice cover is a net sink of atmospheric CO2 of 0.029 Pg C, about 58% of the estimated annual uptake from the Southern Ocean. Sea ice then contributes significantly to the sink of CO2 of the Southern Ocean.
Url:
DOI: 10.1002/2014JC009941
Affiliations:
- Allemagne, Australie, Belgique, Danemark, France
- Province de Liège, Région de Bruxelles-Capitale, Région wallonne, Île-de-France
- Bruxelles, Liège, Paris
- Université de Liège, Université libre de Bruxelles
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000209
- to stream Istex, to step Curation: 000209
- to stream Istex, to step Checkpoint: 000045
- to stream Main, to step Merge: 003D72
- to stream Main, to step Curation: 003D21
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Southern Ocean CO2 sink: The contribution of the sea ice</title><author><name sortKey="Delille, Bruno" sort="Delille, Bruno" uniqKey="Delille B" first="Bruno" last="Delille">Bruno Delille</name></author><author><name sortKey="Vancoppenolle, Martin" sort="Vancoppenolle, Martin" uniqKey="Vancoppenolle M" first="Martin" last="Vancoppenolle">Martin Vancoppenolle</name></author><author><name sortKey="Geilfus, Nicolas Avier" sort="Geilfus, Nicolas Avier" uniqKey="Geilfus N" first="Nicolas-Xavier" last="Geilfus">Nicolas-Xavier Geilfus</name></author><author><name sortKey="Tilbrook, Bronte" sort="Tilbrook, Bronte" uniqKey="Tilbrook B" first="Bronte" last="Tilbrook">Bronte Tilbrook</name></author><author><name sortKey="Lannuzel, Delphine" sort="Lannuzel, Delphine" uniqKey="Lannuzel D" first="Delphine" last="Lannuzel">Delphine Lannuzel</name></author><author><name sortKey="Schoemann, Veronique" sort="Schoemann, Veronique" uniqKey="Schoemann V" first="Véronique" last="Schoemann">Véronique Schoemann</name></author><author><name sortKey="Becquevort, Sylvie" sort="Becquevort, Sylvie" uniqKey="Becquevort S" first="Sylvie" last="Becquevort">Sylvie Becquevort</name></author><author><name sortKey="Carnat, Gauthier" sort="Carnat, Gauthier" uniqKey="Carnat G" first="Gauthier" last="Carnat">Gauthier Carnat</name></author><author><name sortKey="Delille, Daniel" sort="Delille, Daniel" uniqKey="Delille D" first="Daniel" last="Delille">Daniel Delille</name></author><author><name sortKey="Lancelot, Christiane" sort="Lancelot, Christiane" uniqKey="Lancelot C" first="Christiane" last="Lancelot">Christiane Lancelot</name></author><author><name sortKey="Chou, Lei" sort="Chou, Lei" uniqKey="Chou L" first="Lei" last="Chou">Lei Chou</name></author><author><name sortKey="Dieckmann, Gerhard S" sort="Dieckmann, Gerhard S" uniqKey="Dieckmann G" first="Gerhard S." last="Dieckmann">Gerhard S. Dieckmann</name></author><author><name sortKey="Tison, Jean Ouis" sort="Tison, Jean Ouis" uniqKey="Tison J" first="Jean-Louis" last="Tison">Jean-Louis Tison</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:0AF8823D6209BB0D5DE682DD0BD17196B1722DD8</idno><date when="2014" year="2014">2014</date><idno type="doi">10.1002/2014JC009941</idno><idno type="url">https://api.istex.fr/document/0AF8823D6209BB0D5DE682DD0BD17196B1722DD8/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000209</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000209</idno><idno type="wicri:Area/Istex/Curation">000209</idno><idno type="wicri:Area/Istex/Checkpoint">000045</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000045</idno><idno type="wicri:doubleKey">2169-9275:2014:Delille B:southern:ocean:co</idno><idno type="wicri:Area/Main/Merge">003D72</idno><idno type="wicri:Area/Main/Curation">003D21</idno><idno type="wicri:Area/Main/Exploration">003D21</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main">Southern Ocean CO<hi rend="subscript">2</hi> sink: The contribution of the sea ice</title><author><name sortKey="Delille, Bruno" sort="Delille, Bruno" uniqKey="Delille B" first="Bruno" last="Delille">Bruno Delille</name><affiliation wicri:level="4"><country xml:lang="fr">Belgique</country><wicri:regionArea>Unité d'Océanographie Chimique, MARE, Université de Liège, Liège</wicri:regionArea><orgName type="university">Université de Liège</orgName><placeName><settlement type="city">Liège</settlement><region type="region" nuts="1">Région wallonne</region><region type="province" nuts="1">Province de Liège</region></placeName></affiliation><affiliation wicri:level="1"><country wicri:rule="url">Belgique</country></affiliation></author><author><name sortKey="Vancoppenolle, Martin" sort="Vancoppenolle, Martin" uniqKey="Vancoppenolle M" first="Martin" last="Vancoppenolle">Martin Vancoppenolle</name><affiliation wicri:level="3"><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire d'Océanographie et du Climat/Institut Pierre‐Simon Laplace, CNRS/IRD/UPMC/MNHN, Paris</wicri:regionArea><placeName><region type="region">Île-de-France</region><region type="old region">Île-de-France</region><settlement type="city">Paris</settlement></placeName></affiliation></author><author><name sortKey="Geilfus, Nicolas Avier" sort="Geilfus, Nicolas Avier" uniqKey="Geilfus N" first="Nicolas-Xavier" last="Geilfus">Nicolas-Xavier Geilfus</name><affiliation wicri:level="1"><country xml:lang="fr">Danemark</country><wicri:regionArea>Arctic Research Centre, Aarhus University, Aarhus</wicri:regionArea><wicri:noRegion>Aarhus</wicri:noRegion></affiliation></author><author><name sortKey="Tilbrook, Bronte" sort="Tilbrook, Bronte" uniqKey="Tilbrook B" first="Bronte" last="Tilbrook">Bronte Tilbrook</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>CSIRO Wealth from Oceans National Research Flagship and Antarctic Climate and Ecosystem Cooperative Research Centre, Tasmania, Hobart</wicri:regionArea><wicri:noRegion>Hobart</wicri:noRegion></affiliation></author><author><name sortKey="Lannuzel, Delphine" sort="Lannuzel, Delphine" uniqKey="Lannuzel D" first="Delphine" last="Lannuzel">Delphine Lannuzel</name><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Antarctic Climate and Ecosystems Cooperative Research Centre, University of Tasmania, Hobart, Tasmania</wicri:regionArea><wicri:noRegion>Tasmania</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Australie</country><wicri:regionArea>Institute for Marine and Antarctic Studies, University of Tasmania, Tasmania, Hobart</wicri:regionArea><wicri:noRegion>Hobart</wicri:noRegion></affiliation></author><author><name sortKey="Schoemann, Veronique" sort="Schoemann, Veronique" uniqKey="Schoemann V" first="Véronique" last="Schoemann">Véronique Schoemann</name><affiliation wicri:level="4"><country xml:lang="fr">Belgique</country><wicri:regionArea>Glaciology Unit, Department of Earth and Environmental Science, Université Libre de Bruxelles, Bruxelles</wicri:regionArea><placeName><settlement type="city">Bruxelles</settlement><region nuts="2">Région de Bruxelles-Capitale</region><settlement type="city">Bruxelles</settlement></placeName><orgName type="university">Université libre de Bruxelles</orgName></affiliation></author><author><name sortKey="Becquevort, Sylvie" sort="Becquevort, Sylvie" uniqKey="Becquevort S" first="Sylvie" last="Becquevort">Sylvie Becquevort</name><affiliation wicri:level="4"><country xml:lang="fr">Belgique</country><wicri:regionArea>Ecologie des Systèmes Aquatiques, Université Libre de Bruxelles, Bruxelles</wicri:regionArea><placeName><settlement type="city">Bruxelles</settlement><region nuts="2">Région de Bruxelles-Capitale</region><settlement type="city">Bruxelles</settlement></placeName><orgName type="university">Université libre de Bruxelles</orgName></affiliation></author><author><name sortKey="Carnat, Gauthier" sort="Carnat, Gauthier" uniqKey="Carnat G" first="Gauthier" last="Carnat">Gauthier Carnat</name><affiliation wicri:level="4"><country xml:lang="fr">Belgique</country><wicri:regionArea>Glaciology Unit, Department of Earth and Environmental Science, Université Libre de Bruxelles, Bruxelles</wicri:regionArea><placeName><settlement type="city">Bruxelles</settlement><region nuts="2">Région de Bruxelles-Capitale</region><settlement type="city">Bruxelles</settlement></placeName><orgName type="university">Université libre de Bruxelles</orgName></affiliation></author><author><name sortKey="Delille, Daniel" sort="Delille, Daniel" uniqKey="Delille D" first="Daniel" last="Delille">Daniel Delille</name><affiliation wicri:level="1"><country xml:lang="fr">France</country><wicri:regionArea>Observatoire Océanologique de Banyuls, Université P. et M. Curie, Banyuls sur mer</wicri:regionArea><wicri:noRegion>Banyuls sur mer</wicri:noRegion><wicri:noRegion>Banyuls sur mer</wicri:noRegion></affiliation></author><author><name sortKey="Lancelot, Christiane" sort="Lancelot, Christiane" uniqKey="Lancelot C" first="Christiane" last="Lancelot">Christiane Lancelot</name><affiliation wicri:level="4"><country xml:lang="fr">Belgique</country><wicri:regionArea>Glaciology Unit, Department of Earth and Environmental Science, Université Libre de Bruxelles, Bruxelles</wicri:regionArea><placeName><settlement type="city">Bruxelles</settlement><region nuts="2">Région de Bruxelles-Capitale</region><settlement type="city">Bruxelles</settlement></placeName><orgName type="university">Université libre de Bruxelles</orgName></affiliation></author><author><name sortKey="Chou, Lei" sort="Chou, Lei" uniqKey="Chou L" first="Lei" last="Chou">Lei Chou</name><affiliation wicri:level="4"><country xml:lang="fr">Belgique</country><wicri:regionArea>Laboratoire d'Océanographie Chimique et Géochimie des eaux, Université Libre de Bruxelles, Bruxelles</wicri:regionArea><placeName><settlement type="city">Bruxelles</settlement><region nuts="2">Région de Bruxelles-Capitale</region><settlement type="city">Bruxelles</settlement></placeName><orgName type="university">Université libre de Bruxelles</orgName></affiliation></author><author><name sortKey="Dieckmann, Gerhard S" sort="Dieckmann, Gerhard S" uniqKey="Dieckmann G" first="Gerhard S." last="Dieckmann">Gerhard S. Dieckmann</name><affiliation wicri:level="1"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Alfred‐Wegener‐Institut fuer Polar‐ und Meeresforschung, Bremerhaven</wicri:regionArea><wicri:noRegion>Bremerhaven</wicri:noRegion><wicri:noRegion>Bremerhaven</wicri:noRegion></affiliation></author><author><name sortKey="Tison, Jean Ouis" sort="Tison, Jean Ouis" uniqKey="Tison J" first="Jean-Louis" last="Tison">Jean-Louis Tison</name><affiliation wicri:level="4"><country xml:lang="fr">Belgique</country><wicri:regionArea>Glaciology Unit, Department of Earth and Environmental Science, Université Libre de Bruxelles, Bruxelles</wicri:regionArea><placeName><settlement type="city">Bruxelles</settlement><region nuts="2">Région de Bruxelles-Capitale</region><settlement type="city">Bruxelles</settlement></placeName><orgName type="university">Université libre de Bruxelles</orgName></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Journal of Geophysical Research: Oceans</title><title level="j" type="alt">JOURNAL OF GEOPHYSICAL RESEARCH: OCEANS</title><idno type="ISSN">2169-9275</idno><idno type="eISSN">2169-9291</idno><imprint><biblScope unit="vol">119</biblScope><biblScope unit="issue">9</biblScope><biblScope unit="page" from="6340">6340</biblScope><biblScope unit="page" to="6355">6355</biblScope><biblScope unit="page-count">16</biblScope><date type="published" when="2014-09">2014-09</date></imprint><idno type="ISSN">2169-9275</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">2169-9275</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract">We report first direct measurements of the partial pressure of CO2 (pCO2) within Antarctic pack sea ice brines and related CO2 fluxes across the air‐ice interface. From late winter to summer, brines encased in the ice change from a CO2 large oversaturation, relative to the atmosphere, to a marked undersaturation while the underlying oceanic waters remains slightly oversaturated. The decrease from winter to summer of pCO2 in the brines is driven by dilution with melting ice, dissolution of carbonate crystals, and net primary production. As the ice warms, its permeability increases, allowing CO2 transfer at the air‐sea ice interface. The sea ice changes from a transient source to a sink for atmospheric CO2. We upscale these observations to the whole Antarctic sea ice cover using the NEMO‐LIM3 large‐scale sea ice‐ocean and provide first estimates of spring and summer CO2 uptake from the atmosphere by Antarctic sea ice. Over the spring‐summer period, the Antarctic sea ice cover is a net sink of atmospheric CO2 of 0.029 Pg C, about 58% of the estimated annual uptake from the Southern Ocean. Sea ice then contributes significantly to the sink of CO2 of the Southern Ocean.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Australie</li><li>Belgique</li><li>Danemark</li><li>France</li></country><region><li>Province de Liège</li><li>Région de Bruxelles-Capitale</li><li>Région wallonne</li><li>Île-de-France</li></region><settlement><li>Bruxelles</li><li>Liège</li><li>Paris</li></settlement><orgName><li>Université de Liège</li><li>Université libre de Bruxelles</li></orgName></list><tree><country name="Belgique"><region name="Région wallonne"><name sortKey="Delille, Bruno" sort="Delille, Bruno" uniqKey="Delille B" first="Bruno" last="Delille">Bruno Delille</name></region><name sortKey="Becquevort, Sylvie" sort="Becquevort, Sylvie" uniqKey="Becquevort S" first="Sylvie" last="Becquevort">Sylvie Becquevort</name><name sortKey="Carnat, Gauthier" sort="Carnat, Gauthier" uniqKey="Carnat G" first="Gauthier" last="Carnat">Gauthier Carnat</name><name sortKey="Chou, Lei" sort="Chou, Lei" uniqKey="Chou L" first="Lei" last="Chou">Lei Chou</name><name sortKey="Delille, Bruno" sort="Delille, Bruno" uniqKey="Delille B" first="Bruno" last="Delille">Bruno Delille</name><name sortKey="Lancelot, Christiane" sort="Lancelot, Christiane" uniqKey="Lancelot C" first="Christiane" last="Lancelot">Christiane Lancelot</name><name sortKey="Schoemann, Veronique" sort="Schoemann, Veronique" uniqKey="Schoemann V" first="Véronique" last="Schoemann">Véronique Schoemann</name><name sortKey="Tison, Jean Ouis" sort="Tison, Jean Ouis" uniqKey="Tison J" first="Jean-Louis" last="Tison">Jean-Louis Tison</name></country><country name="France"><region name="Île-de-France"><name sortKey="Vancoppenolle, Martin" sort="Vancoppenolle, Martin" uniqKey="Vancoppenolle M" first="Martin" last="Vancoppenolle">Martin Vancoppenolle</name></region><name sortKey="Delille, Daniel" sort="Delille, Daniel" uniqKey="Delille D" first="Daniel" last="Delille">Daniel Delille</name></country><country name="Danemark"><noRegion><name sortKey="Geilfus, Nicolas Avier" sort="Geilfus, Nicolas Avier" uniqKey="Geilfus N" first="Nicolas-Xavier" last="Geilfus">Nicolas-Xavier Geilfus</name></noRegion></country><country name="Australie"><noRegion><name sortKey="Tilbrook, Bronte" sort="Tilbrook, Bronte" uniqKey="Tilbrook B" first="Bronte" last="Tilbrook">Bronte Tilbrook</name></noRegion><name sortKey="Lannuzel, Delphine" sort="Lannuzel, Delphine" uniqKey="Lannuzel D" first="Delphine" last="Lannuzel">Delphine Lannuzel</name><name sortKey="Lannuzel, Delphine" sort="Lannuzel, Delphine" uniqKey="Lannuzel D" first="Delphine" last="Lannuzel">Delphine Lannuzel</name></country><country name="Allemagne"><noRegion><name sortKey="Dieckmann, Gerhard S" sort="Dieckmann, Gerhard S" uniqKey="Dieckmann G" first="Gerhard S." last="Dieckmann">Gerhard S. Dieckmann</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 003D21 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 003D21 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Asie
|area= AustralieFrV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:0AF8823D6209BB0D5DE682DD0BD17196B1722DD8
|texte= Southern Ocean CO2 sink: The contribution of the sea ice
}}
| This area was generated with Dilib version V0.6.33. |  |