Large‐scale equatorward transport of ozone in the subtropical lower stratosphere
Identifieur interne : 000544 ( Istex/Corpus ); précédent : 000543; suivant : 000545Large‐scale equatorward transport of ozone in the subtropical lower stratosphere
Auteurs : Erik C. Richard ; Kenneth C. Aikin ; Eric A. Ray ; Karen H. Rosenlof ; Thomas L. Thompson ; Andrew Weinheimer ; Denise Montzka ; David Knapp ; Brian Ridley ; Andrew GettelmanSource :
- Journal of Geophysical Research: Atmospheres [ 0148-0227 ] ; 2003-12-16.
Abstract
Anomalous vertical profiles of ozone were observed in the subtropical lower stratosphere (near south Florida) in July 2002 during the NASA‐sponsored Cirrus Regional Study of Tropical Anvils and Cirrus Layers‐Florida Area Cirrus Experiment measurement campaign. It is shown that there is an enhancement of ozone (initially >150%) above the tropopause extending up to ∼410 K potential temperature. This ozone increase is the result of recent transport of middle‐and high‐latitude lower stratospheric air into the subtropics. This meridional transport was a consequence of a geostrophic flow pattern established by a quasi‐stationary anticyclone centered over the south central United States that persisted for much of July 2002. We show the spatial and temporal extent of meridional isentropic transport into the subtropics by examining the ozone vertical profiles in combination with the NOy:O3 correlations as well as isentropic back trajectory calculations. The anomalous ozone profiles are also reproduced in a global chemical transport model.
Url:
DOI: 10.1029/2003JD003884
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Richard</name><affiliation><mods:affiliation>E-mail: richard@al.noaa.gov</mods:affiliation></affiliation><affiliation><mods:affiliation>Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA</mods:affiliation></affiliation><affiliation><mods:affiliation>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</mods:affiliation></affiliation></author><author><name sortKey="Aikin, Kenneth C" sort="Aikin, Kenneth C" uniqKey="Aikin K" first="Kenneth C." last="Aikin">Kenneth C. Aikin</name><affiliation><mods:affiliation>Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA</mods:affiliation></affiliation><affiliation><mods:affiliation>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</mods:affiliation></affiliation></author><author><name sortKey="Ray, Eric A" sort="Ray, Eric A" uniqKey="Ray E" first="Eric A." last="Ray">Eric A. Ray</name><affiliation><mods:affiliation>Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA</mods:affiliation></affiliation><affiliation><mods:affiliation>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</mods:affiliation></affiliation></author><author><name sortKey="Rosenlof, Karen H" sort="Rosenlof, Karen H" uniqKey="Rosenlof K" first="Karen H." last="Rosenlof">Karen H. 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Res.</title><idno type="ISSN">0148-0227</idno><idno type="eISSN">2156-2202</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2003-12-16">2003-12-16</date><biblScope unit="volume">108</biblScope><biblScope unit="issue">D23</biblScope><biblScope unit="page" from="n/a">n/a</biblScope><biblScope unit="page" to="n/a">n/a</biblScope></imprint><idno type="ISSN">0148-0227</idno></series><idno type="istex">AF8701ABB8C03715576A249AF8BF1C89BB720370</idno><idno type="DOI">10.1029/2003JD003884</idno><idno type="ArticleID">2003JD003884</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0148-0227</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Anomalous vertical profiles of ozone were observed in the subtropical lower stratosphere (near south Florida) in July 2002 during the NASA‐sponsored Cirrus Regional Study of Tropical Anvils and Cirrus Layers‐Florida Area Cirrus Experiment measurement campaign. It is shown that there is an enhancement of ozone (initially >150%) above the tropopause extending up to ∼410 K potential temperature. This ozone increase is the result of recent transport of middle‐and high‐latitude lower stratospheric air into the subtropics. This meridional transport was a consequence of a geostrophic flow pattern established by a quasi‐stationary anticyclone centered over the south central United States that persisted for much of July 2002. We show the spatial and temporal extent of meridional isentropic transport into the subtropics by examining the ozone vertical profiles in combination with the NOy:O3 correlations as well as isentropic back trajectory calculations. The anomalous ozone profiles are also reproduced in a global chemical transport model.</div></front></TEI><istex><corpusName>wiley</corpusName><author><json:item><name>Erik C. Richard</name><affiliations><json:string>E-mail: richard@al.noaa.gov</json:string><json:string>Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA</json:string><json:string>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</json:string></affiliations></json:item><json:item><name>Kenneth C. Aikin</name><affiliations><json:string>Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA</json:string><json:string>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</json:string></affiliations></json:item><json:item><name>Eric A. Ray</name><affiliations><json:string>Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA</json:string><json:string>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</json:string></affiliations></json:item><json:item><name>Karen H. Rosenlof</name><affiliations><json:string>Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Colorado, Boulder, USA</json:string></affiliations></json:item><json:item><name>Thomas L. Thompson</name><affiliations><json:string>Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Colorado, Boulder, USA</json:string></affiliations></json:item><json:item><name>Andrew Weinheimer</name><affiliations><json:string>National Center for Atmospheric Research, Colorado, Boulder, USA</json:string></affiliations></json:item><json:item><name>Denise Montzka</name><affiliations><json:string>National Center for Atmospheric Research, Colorado, Boulder, USA</json:string></affiliations></json:item><json:item><name>David Knapp</name><affiliations><json:string>National Center for Atmospheric Research, Colorado, Boulder, USA</json:string></affiliations></json:item><json:item><name>Brian Ridley</name><affiliations><json:string>National Center for Atmospheric Research, Colorado, Boulder, USA</json:string></affiliations></json:item><json:item><name>Andrew Gettelman</name><affiliations><json:string>National Center for Atmospheric Research, Colorado, Boulder, USA</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>ozone</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>lower stratosphere</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>large‐scale transport</value></json:item></subject><language><json:string>eng</json:string></language><abstract>Anomalous vertical profiles of ozone were observed in the subtropical lower stratosphere (near south Florida) in July 2002 during the NASA‐sponsored Cirrus Regional Study of Tropical Anvils and Cirrus Layers‐Florida Area Cirrus Experiment measurement campaign. It is shown that there is an enhancement of ozone (initially >150%) above the tropopause extending up to ∼410 K potential temperature. This ozone increase is the result of recent transport of middle‐and high‐latitude lower stratospheric air into the subtropics. This meridional transport was a consequence of a geostrophic flow pattern established by a quasi‐stationary anticyclone centered over the south central United States that persisted for much of July 2002. We show the spatial and temporal extent of meridional isentropic transport into the subtropics by examining the ozone vertical profiles in combination with the NOy:O3 correlations as well as isentropic back trajectory calculations. 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USA</affiliation><affiliation>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</affiliation></author><author><persName><forename type="first">Eric A.</forename><surname>Ray</surname></persName><affiliation>Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA</affiliation><affiliation>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</affiliation></author><author><persName><forename type="first">Karen H.</forename><surname>Rosenlof</surname></persName><affiliation>Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Colorado, Boulder, USA</affiliation></author><author><persName><forename type="first">Thomas L.</forename><surname>Thompson</surname></persName><affiliation>Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Colorado, Boulder, USA</affiliation></author><author><persName><forename type="first">Andrew</forename><surname>Weinheimer</surname></persName><affiliation>National Center for Atmospheric Research, Colorado, Boulder, USA</affiliation></author><author><persName><forename type="first">Denise</forename><surname>Montzka</surname></persName><affiliation>National Center for Atmospheric Research, Colorado, Boulder, USA</affiliation></author><author><persName><forename type="first">David</forename><surname>Knapp</surname></persName><affiliation>National Center for Atmospheric Research, Colorado, Boulder, USA</affiliation></author><author><persName><forename type="first">Brian</forename><surname>Ridley</surname></persName><affiliation>National Center for Atmospheric Research, Colorado, Boulder, USA</affiliation></author><author><persName><forename type="first">Andrew</forename><surname>Gettelman</surname></persName><affiliation>National Center for Atmospheric Research, Colorado, Boulder, USA</affiliation></author></analytic><monogr><title level="j">Journal of 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It is shown that there is an enhancement of ozone (initially >150%) above the tropopause extending up to ∼410 K potential temperature. This ozone increase is the result of recent transport of middle‐and high‐latitude lower stratospheric air into the subtropics. This meridional transport was a consequence of a geostrophic flow pattern established by a quasi‐stationary anticyclone centered over the south central United States that persisted for much of July 2002. We show the spatial and temporal extent of meridional isentropic transport into the subtropics by examining the ozone vertical profiles in combination with the NOy:O3 correlations as well as isentropic back trajectory calculations. The anomalous ozone profiles are also reproduced in a global chemical transport model.</p></abstract><textClass><keywords scheme="keyword"><list><head>Keywords</head><item><term>ozone</term></item><item><term>lower stratosphere</term></item><item><term>large‐scale transport</term></item></list></keywords></textClass><textClass><keywords scheme="Journal Subject"><list><head>Index Terms</head><item><term>Composition and Chemistry</term></item><item><term>ATMOSPHERIC COMPOSITION AND STRUCTURE</term></item><item><term>Middle atmosphere: composition and chemistry</term></item><item><term>Middle atmosphere: constituent transport and chemistry</term></item><item><term>ATMOSPHERIC PROCESSES</term></item><item><term>Middle atmosphere dynamics</term></item></list></keywords></textClass><textClass><keywords scheme="Journal Subject"><list><head>article category</head><item><term>Composition and Chemistry</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="2003-06-18">Received</change><change when="2003-08-27">Registration</change><change when="2003-12-16">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><original>false</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/AF8701ABB8C03715576A249AF8BF1C89BB720370/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="jgrd10845"><header><publicationMeta level="product"><doi>10.1002/(ISSN)2156-2202d</doi><issn type="print">0148-0227</issn><issn type="electronic">2156-2202</issn><idGroup><id type="product" value="JGRD"></id><id type="coden" value="JGREA2"></id></idGroup><titleGroup><title type="main" xml:lang="en" sort="JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES">Journal of Geophysical Research: Atmospheres</title><title type="short">J. 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Res.</title></titleGroup></publicationMeta><publicationMeta level="part" position="230"><doi>10.1002/jgrd.v108.D23</doi><idGroup><id type="focusSection" value="4"></id></idGroup><titleGroup><title type="focusSection" xml:lang="en">Journal of Geophysical Research: Atmospheres</title></titleGroup><numberingGroup><numbering type="journalVolume" number="108">108</numbering><numbering type="journalIssue">D23</numbering></numberingGroup><coverDate startDate="2003-12-16">16 December 2003</coverDate></publicationMeta><publicationMeta level="unit" position="110" type="article" status="forIssue"><doi>10.1029/2003JD003884</doi><idGroup><id type="editorialOffice" value="2003JD003884"></id><id type="society" value="4714"></id><id type="unit" value="JGRD10845"></id></idGroup><countGroup><count type="pageTotal" number="12"></count></countGroup><titleGroup><title type="articleCategory">Composition and Chemistry</title><title type="tocHeading1">Composition and Chemistry</title></titleGroup><copyright ownership="thirdParty">Copyright 2003 by the American Geophysical Union.</copyright><eventGroup><event type="manuscriptReceived" date="2003-06-18"></event><event type="manuscriptRevised" date="2003-08-19"></event><event type="manuscriptAccepted" date="2003-08-27"></event><event type="firstOnline" date="2003-12-02"></event><event type="publishedOnlineFinalForm" date="2003-12-02"></event><event type="xmlConverted" agent="SPi Global Converter:AGUv3.42_TO_WileyML3Gv1.0.3 version:1.2; WileyML 3G Packaging Tool v1.0; AGU2WileyML3G Final Clean Up v1.0" date="2012-12-20"></event><event type="xmlConverted" agent="Converter:WILEY_ML3G_TO_WILEY_ML3GV2 version:3.8.8" date="2014-01-30"></event><event type="xmlConverted" agent="Converter:WML3G_To_WML3G version:4.1.7 mode:FullText,remove_FC" date="2014-10-30"></event></eventGroup><numberingGroup><numbering type="pageFirst">n/a</numbering><numbering type="pageLast">n/a</numbering></numberingGroup><subjectInfo><subject href="http://psi.agu.org/subset/ACH">Composition and Chemistry</subject><subject href="http://psi.agu.org/taxonomy5/0300">ATMOSPHERIC COMPOSITION AND STRUCTURE</subject><subjectInfo><subject href="http://psi.agu.org/taxonomy5/0340">Middle atmosphere: composition and chemistry</subject><subject href="http://psi.agu.org/taxonomy5/0341">Middle atmosphere: constituent transport and chemistry</subject></subjectInfo><subject role="crossTerm" href="http://psi.agu.org/taxonomy5/3300">ATMOSPHERIC PROCESSES</subject><subjectInfo><subject role="crossTerm" href="http://psi.agu.org/taxonomy5/3334">Middle atmosphere dynamics</subject></subjectInfo></subjectInfo><selfCitationGroup><citation xml:id="jgrd10845-cit-0000" type="self"><author><familyName>Richard</familyName>, <givenNames>E. C.</givenNames></author>, <author><givenNames>K. C.</givenNames> <familyName>Aikin</familyName></author>, <author><givenNames>E. A.</givenNames> <familyName>Ray</familyName></author>, <author><givenNames>K. H.</givenNames> <familyName>Rosenlof</familyName></author>, <author><givenNames>T. L.</givenNames> <familyName>Thompson</familyName></author>, <author><givenNames>A.</givenNames> <familyName>Weinheimer</familyName></author>, <author><givenNames>D.</givenNames> <familyName>Montzka</familyName></author>, <author><givenNames>D.</givenNames> <familyName>Knapp</familyName></author>, <author><givenNames>B.</givenNames> <familyName>Ridley</familyName></author>, and <author><givenNames>A.</givenNames> <familyName>Gettelman</familyName></author> (<pubYear year="2003">2003</pubYear>), <articleTitle>Large‐scale equatorward transport of ozone in the subtropical lower stratosphere</articleTitle>, <journalTitle>J. Geophys. Res.</journalTitle>, <vol>108</vol>, 4714, doi:<accessionId ref="info:doi/10.1029/2003JD003884">10.1029/2003JD003884</accessionId>, <issue>D23</issue>.</citation></selfCitationGroup><linkGroup><link type="toTypesetVersion" href="file:JGRD.JGRD10845.pdf"></link></linkGroup></publicationMeta><contentMeta><countGroup><count type="figureTotal" number="11"></count></countGroup><titleGroup><title type="main">Large‐scale equatorward transport of ozone in the subtropical lower stratosphere</title><title type="short">LARGE‐SCALE EQUATORWARD TRANSPORT OF OZONE</title><title type="shortAuthors">Richard <i>et al</i>.</title></titleGroup><creators><creator creatorRole="author" xml:id="jgrd10845-cr-0001" affiliationRef="#jgrd10845-aff-0001 #jgrd10845-aff-0004"><personName><givenNames>Erik C.</givenNames> <familyName>Richard</familyName></personName><contactDetails><email normalForm="richard@al.noaa.gov">richard@al.noaa.gov</email></contactDetails></creator><creator creatorRole="author" xml:id="jgrd10845-cr-0002" affiliationRef="#jgrd10845-aff-0001 #jgrd10845-aff-0004"><personName><givenNames>Kenneth C.</givenNames> <familyName>Aikin</familyName></personName></creator><creator creatorRole="author" xml:id="jgrd10845-cr-0003" affiliationRef="#jgrd10845-aff-0001 #jgrd10845-aff-0004"><personName><givenNames>Eric A.</givenNames> <familyName>Ray</familyName></personName></creator><creator creatorRole="author" xml:id="jgrd10845-cr-0004" affiliationRef="#jgrd10845-aff-0002"><personName><givenNames>Karen H.</givenNames> <familyName>Rosenlof</familyName></personName></creator><creator creatorRole="author" xml:id="jgrd10845-cr-0005" affiliationRef="#jgrd10845-aff-0002"><personName><givenNames>Thomas L.</givenNames> <familyName>Thompson</familyName></personName></creator><creator creatorRole="author" xml:id="jgrd10845-cr-0006" affiliationRef="#jgrd10845-aff-0003"><personName><givenNames>Andrew</givenNames> <familyName>Weinheimer</familyName></personName></creator><creator creatorRole="author" xml:id="jgrd10845-cr-0007" affiliationRef="#jgrd10845-aff-0003"><personName><givenNames>Denise</givenNames> <familyName>Montzka</familyName></personName></creator><creator creatorRole="author" xml:id="jgrd10845-cr-0008" affiliationRef="#jgrd10845-aff-0003"><personName><givenNames>David</givenNames> <familyName>Knapp</familyName></personName></creator><creator creatorRole="author" xml:id="jgrd10845-cr-0009" affiliationRef="#jgrd10845-aff-0003"><personName><givenNames>Brian</givenNames> <familyName>Ridley</familyName></personName></creator><creator creatorRole="author" xml:id="jgrd10845-cr-0010" affiliationRef="#jgrd10845-aff-0003"><personName><givenNames>Andrew</givenNames> <familyName>Gettelman</familyName></personName></creator></creators><affiliationGroup><affiliation countryCode="US" type="organization" xml:id="jgrd10845-aff-0001"><orgDiv>Cooperative Institute for Research in Environmental Sciences</orgDiv><orgName>University of Colorado</orgName><address><city>Boulder</city><countryPart>Colorado</countryPart><country>USA</country></address></affiliation><affiliation countryCode="US" type="organization" xml:id="jgrd10845-aff-0002"><orgName>Aeronomy Laboratory, National Oceanic and Atmospheric Administration</orgName><address><city>Boulder</city><countryPart>Colorado</countryPart><country>USA</country></address></affiliation><affiliation countryCode="US" type="organization" xml:id="jgrd10845-aff-0003"><orgName>National Center for Atmospheric Research</orgName><address><city>Boulder</city><countryPart>Colorado</countryPart><country>USA</country></address></affiliation><affiliation type="organization" xml:id="jgrd10845-aff-0004"><unparsedAffiliation>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</unparsedAffiliation></affiliation></affiliationGroup><keywordGroup type="author"><keyword xml:id="jgrd10845-kwd-0001">ozone</keyword><keyword xml:id="jgrd10845-kwd-0002">lower stratosphere</keyword><keyword xml:id="jgrd10845-kwd-0003">large‐scale transport</keyword></keywordGroup><abstractGroup><abstract type="main"><p xml:id="jgrd10845-para-0001" label="1">Anomalous vertical profiles of ozone were observed in the subtropical lower stratosphere (near south Florida) in July 2002 during the NASA‐sponsored Cirrus Regional Study of Tropical Anvils and Cirrus Layers‐Florida Area Cirrus Experiment measurement campaign. It is shown that there is an enhancement of ozone (initially >150%) above the tropopause extending up to ∼410 K potential temperature. This ozone increase is the result of recent transport of middle‐and high‐latitude lower stratospheric air into the subtropics. This meridional transport was a consequence of a geostrophic flow pattern established by a quasi‐stationary anticyclone centered over the south central United States that persisted for much of July 2002. We show the spatial and temporal extent of meridional isentropic transport into the subtropics by examining the ozone vertical profiles in combination with the NO<sub><i>y</i></sub>:O<sub>3</sub> correlations as well as isentropic back trajectory calculations. The anomalous ozone profiles are also reproduced in a global chemical transport model.</p></abstract></abstractGroup></contentMeta></header></component></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Large‐scale equatorward transport of ozone in the subtropical lower stratosphere</title></titleInfo><titleInfo type="abbreviated"><title>LARGE‐SCALE EQUATORWARD TRANSPORT OF OZONE</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Large‐scale equatorward transport of ozone in the subtropical lower stratosphere</title></titleInfo><name type="personal"><namePart type="given">Erik C.</namePart><namePart type="family">Richard</namePart><affiliation>E-mail: richard@al.noaa.gov</affiliation><affiliation>Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA</affiliation><affiliation>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Kenneth C.</namePart><namePart type="family">Aikin</namePart><affiliation>Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA</affiliation><affiliation>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Eric A.</namePart><namePart type="family">Ray</namePart><affiliation>Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, Colorado, USA</affiliation><affiliation>Also at Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Boulder, Colorado, USA.</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Karen H.</namePart><namePart type="family">Rosenlof</namePart><affiliation>Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Colorado, Boulder, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Thomas L.</namePart><namePart type="family">Thompson</namePart><affiliation>Aeronomy Laboratory, National Oceanic and Atmospheric Administration, Colorado, Boulder, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Andrew</namePart><namePart type="family">Weinheimer</namePart><affiliation>National Center for Atmospheric Research, Colorado, Boulder, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Denise</namePart><namePart type="family">Montzka</namePart><affiliation>National Center for Atmospheric Research, Colorado, Boulder, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">David</namePart><namePart type="family">Knapp</namePart><affiliation>National Center for Atmospheric Research, Colorado, Boulder, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Brian</namePart><namePart type="family">Ridley</namePart><affiliation>National Center for Atmospheric Research, Colorado, Boulder, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">Andrew</namePart><namePart type="family">Gettelman</namePart><affiliation>National Center for Atmospheric Research, Colorado, Boulder, USA</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="article">article</genre><originInfo><publisher>Blackwell Publishing Ltd</publisher><dateIssued encoding="w3cdtf">2003-12-16</dateIssued><dateCaptured encoding="w3cdtf">2003-06-18</dateCaptured><dateValid encoding="w3cdtf">2003-08-27</dateValid><edition>Richard, E. C., K. C. Aikin, E. A. Ray, K. H. Rosenlof, T. L. Thompson, A. Weinheimer, D. Montzka, D. Knapp, B. Ridley, and A. Gettelman (2003), Large‐scale equatorward transport of ozone in the subtropical lower stratosphere, J. Geophys. Res., 108, 4714, doi:10.1029/2003JD003884, D23.</edition><copyrightDate encoding="w3cdtf">2003</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">11</extent></physicalDescription><abstract>Anomalous vertical profiles of ozone were observed in the subtropical lower stratosphere (near south Florida) in July 2002 during the NASA‐sponsored Cirrus Regional Study of Tropical Anvils and Cirrus Layers‐Florida Area Cirrus Experiment measurement campaign. It is shown that there is an enhancement of ozone (initially >150%) above the tropopause extending up to ∼410 K potential temperature. This ozone increase is the result of recent transport of middle‐and high‐latitude lower stratospheric air into the subtropics. This meridional transport was a consequence of a geostrophic flow pattern established by a quasi‐stationary anticyclone centered over the south central United States that persisted for much of July 2002. We show the spatial and temporal extent of meridional isentropic transport into the subtropics by examining the ozone vertical profiles in combination with the NOy:O3 correlations as well as isentropic back trajectory calculations. The anomalous ozone profiles are also reproduced in a global chemical transport model.</abstract><subject><genre>Keywords</genre><topic>ozone</topic><topic>lower stratosphere</topic><topic>large‐scale transport</topic></subject><relatedItem type="host"><titleInfo><title>Journal of Geophysical Research: Atmospheres</title></titleInfo><titleInfo type="abbreviated"><title>J. Geophys. Res.</title></titleInfo><subject><genre>Index Terms</genre><topic authorityURI="http://psi.agu.org/subset/ACH">Composition and Chemistry</topic><topic authorityURI="http://psi.agu.org/taxonomy5/0300">ATMOSPHERIC COMPOSITION AND STRUCTURE</topic><topic authorityURI="http://psi.agu.org/taxonomy5/0340">Middle atmosphere: composition and chemistry</topic><topic authorityURI="http://psi.agu.org/taxonomy5/0341">Middle atmosphere: constituent transport and chemistry</topic><topic authorityURI="http://psi.agu.org/taxonomy5/3300">ATMOSPHERIC PROCESSES</topic><topic authorityURI="http://psi.agu.org/taxonomy5/3334">Middle atmosphere dynamics</topic></subject><subject><genre>article category</genre><topic>Composition and Chemistry</topic></subject><identifier type="ISSN">0148-0227</identifier><identifier type="eISSN">2156-2202</identifier><identifier type="DOI">10.1002/(ISSN)2156-2202d</identifier><identifier type="CODEN">JGREA2</identifier><identifier type="PublisherID">JGRD</identifier><part><date>2003</date><detail type="volume"><caption>vol.</caption><number>108</number></detail><detail type="issue"><caption>no.</caption><number>D23</number></detail><extent unit="pages"><start>n/a</start><end>n/a</end><total>12</total></extent></part></relatedItem><identifier type="istex">AF8701ABB8C03715576A249AF8BF1C89BB720370</identifier><identifier type="DOI">10.1029/2003JD003884</identifier><identifier type="ArticleID">2003JD003884</identifier><accessCondition type="use and reproduction" contentType="copyright">Copyright 2003 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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