Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow?
Identifieur interne : 000835 ( Istex/Corpus ); précédent : 000834; suivant : 000836Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow?
Auteurs : Frédéric Vivier ; Ernst Maier-Reimer ; Robert H. TylerSource :
- Geophysical Research Letters [ 0094-8276 ] ; 2004-05.
Abstract
With a volume transport of ∼134 × 106 m3/s at the Drake Passage, the Antarctic Circumpolar Current (ACC) is the strongest ocean current. In the interest of estimating the secondary magnetic fields generated by the magnetohydrodynamic interaction of this flow with Earth's main field, we compare numerical results for the magnetic fields obtained using flow from three different ocean general circulation models. These simulations all expect detectable ocean signals in the magnetic records at ground and satellite altitude (400 km). The variability of this contribution is highly correlated with the ACC transport, a very important variable for climate studies. Observed magnetic fields could then be used, in principle, to derive an index of variability of the ACC. However given its small amplitude compared with other magnetic contributions, extracting the ocean's signal from observations remains a challenge at this time.
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DOI: 10.1029/2004GL019804
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In the interest of estimating the secondary magnetic fields generated by the magnetohydrodynamic interaction of this flow with Earth's main field, we compare numerical results for the magnetic fields obtained using flow from three different ocean general circulation models. These simulations all expect detectable ocean signals in the magnetic records at ground and satellite altitude (400 km). The variability of this contribution is highly correlated with the ACC transport, a very important variable for climate studies. Observed magnetic fields could then be used, in principle, to derive an index of variability of the ACC. However given its small amplitude compared with other magnetic contributions, extracting the ocean's signal from observations remains a challenge at this time.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>Frédéric Vivier</name><affiliations><json:string>Laboratoire d'Océanographie Dynamique et de Climatologie, CNRS UMR 7617, Université Pierre et Marie Curie, Paris, France</json:string><json:string>E-mail: frederic.vivier@lodyc.jussieu.fr</json:string></affiliations></json:item><json:item><name>Ernst Maier‐Reimer</name><affiliations><json:string>Max Planck Institute for Meteorology, Hamburg, Germany</json:string></affiliations></json:item><json:item><name>Robert H. 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The variability of this contribution is highly correlated with the ACC transport, a very important variable for climate studies. Observed magnetic fields could then be used, in principle, to derive an index of variability of the ACC. However given its small amplitude compared with other magnetic contributions, extracting the ocean's signal from observations remains a challenge at this time.</abstract><qualityIndicators><score>4.777</score><pdfVersion>1.3</pdfVersion><pdfPageSize>592 x 807 pts</pdfPageSize><refBibsNative>true</refBibsNative><abstractCharCount>926</abstractCharCount><pdfWordCount>3109</pdfWordCount><pdfCharCount>18233</pdfCharCount><pdfPageCount>5</pdfPageCount><abstractWordCount>139</abstractWordCount></qualityIndicators><title>Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow?</title><refBibs><json:item><author><json:item><name>S. A. 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In the interest of estimating the secondary magnetic fields generated by the magnetohydrodynamic interaction of this flow with Earth's main field, we compare numerical results for the magnetic fields obtained using flow from three different ocean general circulation models. These simulations all expect detectable ocean signals in the magnetic records at ground and satellite altitude (400 km). The variability of this contribution is highly correlated with the ACC transport, a very important variable for climate studies. Observed magnetic fields could then be used, in principle, to derive an index of variability of the ACC. However given its small amplitude compared with other magnetic contributions, extracting the ocean's signal from observations remains a challenge at this time.</p></abstract><textClass><keywords scheme="Journal Subject"><list><head>index-terms</head><item><term>GEOMAGNETISM AND PALEOMAGNETISM</term></item><item><term>Geomagnetism and Paleomagnetism: Time variations—diurnal to secular</term></item><item><term>Spatial variations attributed to seafloor spreading</term></item><item><term>GLOBAL CHANGE</term></item><item><term>Oceans</term></item><item><term>Climate variability</term></item><item><term>MARINE GEOLOGY AND GEOPHYSICS</term></item><item><term>Marine Geology and Geophysics: Geomagnetism</term></item><item><term>ATMOSPHERIC PROCESSES</term></item><item><term>Climate change and variability</term></item><item><term>OCEANOGRAPHY: GENERAL</term></item><item><term>Instruments and techniques</term></item><item><term>Climate and interannual variability</term></item><item><term>OCEANOGRAPHY: PHYSICAL</term></item><item><term>Currents</term></item><item><term>Decadal ocean variability</term></item></list></keywords></textClass><textClass><keywords scheme="Journal Subject"><list><head>article-category</head><item><term>Oceans</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2004-02-24">Received</change><change when="2004-05-03">Registration</change><change when="2004-05">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/0272421BA1B7E60096C4C6C176136F584BAA0FF0/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component type="serialArticle" version="2.0" xml:lang="en" xml:id="grl18237"><header><publicationMeta level="product"><doi>10.1002/(ISSN)1944-8007</doi><issn type="print">0094-8276</issn><issn type="electronic">1944-8007</issn><idGroup><id type="product" value="GRL"></id><id type="coden" value="GPRLAJ"></id></idGroup><titleGroup><title type="main" xml:lang="en" sort="GEOPHYSICAL RESEARCH LETTERS">Geophysical Research Letters</title><title type="short">Geophys. 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Lett.</title></titleGroup></publicationMeta><publicationMeta level="part" position="100"><doi>10.1002/grl.v31.10</doi><numberingGroup><numbering type="journalVolume" number="31">31</numbering><numbering type="journalIssue">10</numbering></numberingGroup><coverDate startDate="2004-05">May 2004</coverDate></publicationMeta><publicationMeta level="unit" position="240" type="article" status="forIssue"><doi>10.1029/2004GL019804</doi><idGroup><id type="editorialOffice" value="2004GL019804"></id><id type="society" value="L10306"></id><id type="unit" value="GRL18237"></id></idGroup><countGroup><count type="pageTotal" number="5"></count></countGroup><titleGroup><title type="articleCategory">Oceans</title><title type="tocHeading1">Oceans</title></titleGroup><copyright ownership="thirdParty">Copyright 2004 by the American Geophysical Union.</copyright><eventGroup><event type="manuscriptReceived" date="2004-02-24"></event><event type="manuscriptRevised" date="2004-04-29"></event><event type="manuscriptAccepted" date="2004-05-03"></event><event type="firstOnline" date="2004-05-27"></event><event type="publishedOnlineFinalForm" date="2004-05-27"></event><event type="xmlConverted" agent="SPi Global Converter:AGUv3.43_TO_WileyML3Gv1.0.3 version:1.3; WileyML 3G Packaging Tool v1.0; AGU2WileyML3G Final Clean Up v1.0" date="2012-12-14"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-01-26"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-24"></event></eventGroup><numberingGroup><numbering type="pageFirst">n/a</numbering><numbering type="pageLast">n/a</numbering></numberingGroup><subjectInfo><subject href="http://psi.agu.org/taxonomy5/1500">GEOMAGNETISM AND PALEOMAGNETISM</subject><subjectInfo><subject href="http://psi.agu.org/taxonomy5/1555">Geomagnetism and Paleomagnetism: Time variations—diurnal to secular</subject><subject role="crossTerm" href="http://psi.agu.org/taxonomy5/1550">Spatial variations attributed to seafloor spreading</subject></subjectInfo><subject href="http://psi.agu.org/taxonomy5/1600">GLOBAL CHANGE</subject><subjectInfo><subject href="http://psi.agu.org/taxonomy5/1635">Oceans</subject><subject role="crossTerm" href="http://psi.agu.org/taxonomy5/1616">Climate variability</subject></subjectInfo><subject href="http://psi.agu.org/taxonomy5/3000">MARINE GEOLOGY AND GEOPHYSICS</subject><subjectInfo><subject href="http://psi.agu.org/taxonomy5/3005">Marine Geology and Geophysics: Geomagnetism</subject></subjectInfo><subject role="crossTerm" href="http://psi.agu.org/taxonomy5/3300">ATMOSPHERIC PROCESSES</subject><subjectInfo><subject role="crossTerm" href="http://psi.agu.org/taxonomy5/3305">Climate change and variability</subject></subjectInfo><subject href="http://psi.agu.org/taxonomy5/4200">OCEANOGRAPHY: GENERAL</subject><subjectInfo><subject href="http://psi.agu.org/taxonomy5/4294">Instruments and techniques</subject><subject role="crossTerm" href="http://psi.agu.org/taxonomy5/4215">Climate and interannual variability</subject></subjectInfo><subject href="http://psi.agu.org/taxonomy5/4500">OCEANOGRAPHY: PHYSICAL</subject><subjectInfo><subject href="http://psi.agu.org/taxonomy5/4512">Currents</subject><subject role="crossTerm" href="http://psi.agu.org/taxonomy5/4513">Decadal ocean variability</subject></subjectInfo></subjectInfo><selfCitationGroup><citation xml:id="grl18237-cit-0000" type="self"><author><familyName>Vivier</familyName>, <givenNames>F.</givenNames></author>, <author><givenNames>E.</givenNames> <familyName>Maier‐Reimer</familyName></author>, and <author><givenNames>R. H.</givenNames> <familyName>Tyler</familyName></author> (<pubYear year="2004">2004</pubYear>), <articleTitle>Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow?</articleTitle> <journalTitle>Geophys. Res. Lett.</journalTitle>, <vol>31</vol>, L10306, doi:<accessionId ref="info:doi/10.1029/2004GL019804">10.1029/2004GL019804</accessionId>.</citation></selfCitationGroup><linkGroup><link type="toTypesetVersion" href="file:GRL.GRL18237.pdf"></link></linkGroup></publicationMeta><contentMeta><countGroup><count type="figureTotal" number="4"></count></countGroup><titleGroup><title type="main">Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow?</title><title type="short">MAGNETIC FIELDS GENERATED BY THE ACC</title><title type="shortAuthors">Vivier <i>et al</i>.</title></titleGroup><creators><creator creatorRole="author" xml:id="grl18237-cr-0001" affiliationRef="#grl18237-aff-0001"><personName><givenNames>Frédéric</givenNames> <familyName>Vivier</familyName></personName><contactDetails><email normalForm="frederic.vivier@lodyc.jussieu.fr">frederic.vivier@lodyc.jussieu.fr</email></contactDetails></creator><creator creatorRole="author" xml:id="grl18237-cr-0002" affiliationRef="#grl18237-aff-0002"><personName><givenNames>Ernst</givenNames> <familyName>Maier‐Reimer</familyName></personName></creator><creator creatorRole="author" xml:id="grl18237-cr-0003" affiliationRef="#grl18237-aff-0003"><personName><givenNames>Robert H.</givenNames> <familyName>Tyler</familyName></personName></creator></creators><affiliationGroup><affiliation countryCode="FR" type="organization" xml:id="grl18237-aff-0001"><orgDiv>Laboratoire d'Océanographie Dynamique et de Climatologie, CNRS UMR 7617</orgDiv><orgName>Université Pierre et Marie Curie</orgName><address><city>Paris</city><country>France</country></address></affiliation><affiliation countryCode="DE" type="organization" xml:id="grl18237-aff-0002"><orgName>Max Planck Institute for Meteorology</orgName><address><city>Hamburg</city><country>Germany</country></address></affiliation><affiliation countryCode="US" type="organization" xml:id="grl18237-aff-0003"><orgDiv>Applied Physics Laboratory</orgDiv><orgName>University of Washington</orgName><address><city>Seattle</city><countryPart>Washington</countryPart><country>USA</country></address></affiliation></affiliationGroup><abstractGroup><abstract type="main"><p xml:id="grl18237-para-0001" label="1">With a volume transport of ∼134 × 10<sup>6</sup> m<sup>3</sup>/s at the Drake Passage, the Antarctic Circumpolar Current (ACC) is the strongest ocean current. In the interest of estimating the secondary magnetic fields generated by the magnetohydrodynamic interaction of this flow with Earth's main field, we compare numerical results for the magnetic fields obtained using flow from three different ocean general circulation models. These simulations all expect detectable ocean signals in the magnetic records at ground and satellite altitude (400 km). The variability of this contribution is highly correlated with the ACC transport, a very important variable for climate studies. Observed magnetic fields could then be used, in principle, to derive an index of variability of the ACC. However given its small amplitude compared with other magnetic contributions, extracting the ocean's signal from observations remains a challenge at this time.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow?</title></titleInfo><titleInfo type="abbreviated" lang="en"><title>MAGNETIC FIELDS GENERATED BY THE ACC</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow?</title></titleInfo><name type="personal"><namePart type="given">Frédéric</namePart><namePart type="family">Vivier</namePart><affiliation>Laboratoire d'Océanographie Dynamique et de Climatologie, CNRS UMR 7617, Université Pierre et Marie Curie, Paris, France</affiliation><affiliation>E-mail: frederic.vivier@lodyc.jussieu.fr</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Ernst</namePart><namePart type="family">Maier‐Reimer</namePart><affiliation>Max Planck Institute for Meteorology, Hamburg, Germany</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Robert H.</namePart><namePart type="family">Tyler</namePart><affiliation>Applied Physics Laboratory, University of Washington, Washington, Seattle, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article" displayLabel="article"></genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><dateIssued encoding="w3cdtf">2004-05</dateIssued><dateCaptured encoding="w3cdtf">2004-02-24</dateCaptured><dateValid encoding="w3cdtf">2004-05-03</dateValid><edition>Vivier, F., E. Maier‐Reimer, and R. H. Tyler (2004), Simulations of magnetic fields generated by the Antarctic Circumpolar Current at satellite altitude: Can geomagnetic measurements be used to monitor the flow? Geophys. Res. Lett., 31, L10306, doi:10.1029/2004GL019804.</edition><copyrightDate encoding="w3cdtf">2004</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType><extent unit="figures">4</extent></physicalDescription><abstract>With a volume transport of ∼134 × 106 m3/s at the Drake Passage, the Antarctic Circumpolar Current (ACC) is the strongest ocean current. In the interest of estimating the secondary magnetic fields generated by the magnetohydrodynamic interaction of this flow with Earth's main field, we compare numerical results for the magnetic fields obtained using flow from three different ocean general circulation models. These simulations all expect detectable ocean signals in the magnetic records at ground and satellite altitude (400 km). The variability of this contribution is highly correlated with the ACC transport, a very important variable for climate studies. Observed magnetic fields could then be used, in principle, to derive an index of variability of the ACC. However given its small amplitude compared with other magnetic contributions, extracting the ocean's signal from observations remains a challenge at this time.</abstract><relatedItem type="host"><titleInfo><title>Geophysical Research Letters</title></titleInfo><titleInfo type="abbreviated"><title>Geophys. Res. Lett.</title></titleInfo><genre type="journal">journal</genre><subject><genre>index-terms</genre><topic authorityURI="http://psi.agu.org/taxonomy5/1500">GEOMAGNETISM AND PALEOMAGNETISM</topic><topic authorityURI="http://psi.agu.org/taxonomy5/1555">Geomagnetism and Paleomagnetism: Time variations—diurnal to secular</topic><topic authorityURI="http://psi.agu.org/taxonomy5/1550">Spatial variations attributed to seafloor spreading</topic><topic authorityURI="http://psi.agu.org/taxonomy5/1600">GLOBAL CHANGE</topic><topic authorityURI="http://psi.agu.org/taxonomy5/1635">Oceans</topic><topic authorityURI="http://psi.agu.org/taxonomy5/1616">Climate variability</topic><topic authorityURI="http://psi.agu.org/taxonomy5/3000">MARINE GEOLOGY AND GEOPHYSICS</topic><topic authorityURI="http://psi.agu.org/taxonomy5/3005">Marine Geology and Geophysics: Geomagnetism</topic><topic authorityURI="http://psi.agu.org/taxonomy5/3300">ATMOSPHERIC PROCESSES</topic><topic authorityURI="http://psi.agu.org/taxonomy5/3305">Climate change and variability</topic><topic authorityURI="http://psi.agu.org/taxonomy5/4200">OCEANOGRAPHY: GENERAL</topic><topic authorityURI="http://psi.agu.org/taxonomy5/4294">Instruments and techniques</topic><topic authorityURI="http://psi.agu.org/taxonomy5/4215">Climate and interannual variability</topic><topic authorityURI="http://psi.agu.org/taxonomy5/4500">OCEANOGRAPHY: PHYSICAL</topic><topic authorityURI="http://psi.agu.org/taxonomy5/4512">Currents</topic><topic authorityURI="http://psi.agu.org/taxonomy5/4513">Decadal ocean variability</topic></subject><subject><genre>article-category</genre><topic>Oceans</topic></subject><identifier type="ISSN">0094-8276</identifier><identifier type="eISSN">1944-8007</identifier><identifier type="DOI">10.1002/(ISSN)1944-8007</identifier><identifier type="CODEN">GPRLAJ</identifier><identifier type="PublisherID">GRL</identifier><part><date>2004</date><detail type="volume"><caption>vol.</caption><number>31</number></detail><detail type="issue"><caption>no.</caption><number>10</number></detail><extent unit="pages"><start>n/a</start><end>n/a</end><total>5</total></extent></part></relatedItem><identifier type="istex">0272421BA1B7E60096C4C6C176136F584BAA0FF0</identifier><identifier type="DOI">10.1029/2004GL019804</identifier><identifier type="ArticleID">2004GL019804</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright 2004 by the American Geophysical Union.</accessCondition><recordInfo><recordContentSource>WILEY</recordContentSource></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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