Tropospheric ozone over the tropical Atlantic: A satellite perspective
Identifieur interne : 000205 ( PascalFrancis/Corpus ); précédent : 000204; suivant : 000206Tropospheric ozone over the tropical Atlantic: A satellite perspective
Auteurs : D. P. Edwards ; J.-F. Lamarque ; J.-L. Attie ; L. K. Emmons ; A. Richter ; J.-P. Cammas ; J. C. Gille ; G. L. Francis ; M. N. Deeter ; J. Warner ; D. C. Ziskin ; L. V. Lyjak ; J. R. Drummond ; J. P. BurrowsSource :
- Journal of geophysical research [ 0148-0227 ] ; 2003.
Descripteurs français
- Pascal (Inist)
- Troposphère, Ozone, Observation par satellite, Feu végétation, Savane, Panache, Zone convergence intertropicale, Précurseur, Foudre, Modèle chimique, Etude cas, Transfert interhémisphérique, Satellite TRMM, Satellite ERS, Azote dioxyde, Distribution planétaire, Océan Atlantique équatorial, Satellite Terra.
English descriptors
- KwdEn :
Abstract
[1] We use satellite sensor measurements to obtain a broad picture of the processes affecting tropical tropospheric O3 production over Africa and the Atlantic in the early part of the year. Terra/MOPITT CO retrievals correlate well with biomass burning fire counts observed by the TRMM/VIRS instrument in Northern Hemisphere savanna regions and allow investigation of the subsequent convection of the biomass burning plume at the intertropical convergence zone and interhemispheric transport. Measurements of NO2 from the ERS-2/GOME instrument enable identification of two important tropical sources of this O3 precursor, biomass burning and lightning. Good correlation is seen between NO2 retrievals and TRMM/LIS lightning flash observations in southern African regions free of biomass burning, thus indicating a probable lightning source of NOx. The combination of MOPITT CO, GOME NO2, and TRMM fire and lightning flash counts provides a powerful tool for investigating the tropospheric production of O3 precursors. These data are used in conjunction with the MOZART-2 chemical transport model to investigate the early year tropical Atlantic tropospheric O3 distribution using January 2001 as a case study. Inconsistencies between the various tropical tropospheric O3 column products obtained from EP/TOMS data, and between these products, in situ measurements, and modeling, have led to questions about how the Northern Hemisphere biomass burning is connected to the TOMS derived O3 maximum in the tropical southern Atlantic. We show that the early year tropical O3 distribution is actually characterized by two maxima. The first arises due to biomass burning emissions, is located near the Northern Hemisphere fires, and is most evident in the lower troposphere. The second is located in the southern tropical Atlantic midtroposphere, and results from NOx produced by lightning over southern Africa and South America.
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Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
| NO : | PASCAL 03-0384442 INIST |
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| ET : | Tropospheric ozone over the tropical Atlantic: A satellite perspective |
| AU : | EDWARDS (D. P.); LAMARQUE (J.-F.); ATTIE (J.-L.); EMMONS (L. K.); RICHTER (A.); CAMMAS (J.-P.); GILLE (J. C.); FRANCIS (G. L.); DEETER (M. N.); WARNER (J.); ZISKIN (D. C.); LYJAK (L. V.); DRUMMOND (J. R.); BURROWS (J. P.) |
| AF : | National Center for Atmospheric Research/Boulder, Colorado/Etats-Unis (1 aut., 2 aut., 4 aut., 7 aut., 8 aut., 9 aut., 10 aut., 11 aut., 12 aut.); Observatoire Midi Pyrénées/Toulouse/France (3 aut., 6 aut.); Institute of Environmental Physics, University of Bremen/Bremen/Allemagne (5 aut., 14 aut.); Department of Physics, University of Toronto/Toronto, Ontario/Canada (13 aut.) |
| DT : | Publication en série; Niveau analytique |
| SO : | Journal of geophysical research; ISSN 0148-0227; Etats-Unis; Da. 2003; Vol. 108; No. D8; ACH2.1-ACH2.21; Bibl. 1 p.1/4 |
| LA : | Anglais |
| EA : | [1] We use satellite sensor measurements to obtain a broad picture of the processes affecting tropical tropospheric O3 production over Africa and the Atlantic in the early part of the year. Terra/MOPITT CO retrievals correlate well with biomass burning fire counts observed by the TRMM/VIRS instrument in Northern Hemisphere savanna regions and allow investigation of the subsequent convection of the biomass burning plume at the intertropical convergence zone and interhemispheric transport. Measurements of NO2 from the ERS-2/GOME instrument enable identification of two important tropical sources of this O3 precursor, biomass burning and lightning. Good correlation is seen between NO2 retrievals and TRMM/LIS lightning flash observations in southern African regions free of biomass burning, thus indicating a probable lightning source of NOx. The combination of MOPITT CO, GOME NO2, and TRMM fire and lightning flash counts provides a powerful tool for investigating the tropospheric production of O3 precursors. These data are used in conjunction with the MOZART-2 chemical transport model to investigate the early year tropical Atlantic tropospheric O3 distribution using January 2001 as a case study. Inconsistencies between the various tropical tropospheric O3 column products obtained from EP/TOMS data, and between these products, in situ measurements, and modeling, have led to questions about how the Northern Hemisphere biomass burning is connected to the TOMS derived O3 maximum in the tropical southern Atlantic. We show that the early year tropical O3 distribution is actually characterized by two maxima. The first arises due to biomass burning emissions, is located near the Northern Hemisphere fires, and is most evident in the lower troposphere. The second is located in the southern tropical Atlantic midtroposphere, and results from NOx produced by lightning over southern Africa and South America. |
| CC : | 001E02D04 |
| FD : | Troposphère; Ozone; Observation par satellite; Feu végétation; Savane; Panache; Zone convergence intertropicale; Précurseur; Foudre; Modèle chimique; Etude cas; Transfert interhémisphérique; Satellite TRMM; Satellite ERS; Azote dioxyde; Distribution planétaire; Océan Atlantique équatorial; Satellite Terra |
| ED : | Troposphere; Ozone; Satellite observation; Vegetation fire; Savannah; Plume; Intertropical convergence zone; Precursor; Lightning; Chemical model; Case study; Interhemispheric transfer; TRMM satellite; ERS satellite; Nitrogen dioxide; Planetary distribution; Equatorial Atlantic; Terra satellite |
| SD : | Troposfera; Ozono; Observación por satélite; Fuego vegetación; Sabana; Penacho; Zona convergencia intertropical; Precursor; Rayo; Modelo químico; Estudio caso; Transferencia interhemisférica; Satélite TRMM; Satélite ERS; Nitrógeno dióxido; Distribución planetaria; Océano Atlántico ecuatorial; Satélite Terra |
| LO : | INIST-3144.354000118312870530 |
| ID : | 03-0384442 |
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Ziskin</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Lyjak, L V" sort="Lyjak, L V" uniqKey="Lyjak L" first="L. V." last="Lyjak">L. V. Lyjak</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Drummond, J R" sort="Drummond, J R" uniqKey="Drummond J" first="J. R." last="Drummond">J. R. Drummond</name><affiliation><inist:fA14 i1="04"><s1>Department of Physics, University of Toronto</s1><s2>Toronto, Ontario</s2><s3>CAN</s3><sZ>13 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Burrows, J P" sort="Burrows, J P" uniqKey="Burrows J" first="J. P." last="Burrows">J. P. Burrows</name><affiliation><inist:fA14 i1="03"><s1>Institute of Environmental Physics, University of Bremen</s1><s2>Bremen</s2><s3>DEU</s3><sZ>5 aut.</sZ><sZ>14 aut.</sZ></inist:fA14></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">03-0384442</idno><date when="2003">2003</date><idno type="stanalyst">PASCAL 03-0384442 INIST</idno><idno type="RBID">Pascal:03-0384442</idno><idno type="wicri:Area/PascalFrancis/Corpus">000205</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Tropospheric ozone over the tropical Atlantic: A satellite perspective</title><author><name sortKey="Edwards, D P" sort="Edwards, D P" uniqKey="Edwards D" first="D. P." last="Edwards">D. P. Edwards</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Lamarque, J F" sort="Lamarque, J F" uniqKey="Lamarque J" first="J.-F." last="Lamarque">J.-F. Lamarque</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Attie, J L" sort="Attie, J L" uniqKey="Attie J" first="J.-L." last="Attie">J.-L. Attie</name><affiliation><inist:fA14 i1="02"><s1>Observatoire Midi Pyrénées</s1><s2>Toulouse</s2><s3>FRA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Emmons, L K" sort="Emmons, L K" uniqKey="Emmons L" first="L. K." last="Emmons">L. K. Emmons</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Richter, A" sort="Richter, A" uniqKey="Richter A" first="A." last="Richter">A. Richter</name><affiliation><inist:fA14 i1="03"><s1>Institute of Environmental Physics, University of Bremen</s1><s2>Bremen</s2><s3>DEU</s3><sZ>5 aut.</sZ><sZ>14 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Cammas, J P" sort="Cammas, J P" uniqKey="Cammas J" first="J.-P." last="Cammas">J.-P. Cammas</name><affiliation><inist:fA14 i1="02"><s1>Observatoire Midi Pyrénées</s1><s2>Toulouse</s2><s3>FRA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Gille, J C" sort="Gille, J C" uniqKey="Gille J" first="J. C." last="Gille">J. C. Gille</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Francis, G L" sort="Francis, G L" uniqKey="Francis G" first="G. L." last="Francis">G. L. Francis</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Deeter, M N" sort="Deeter, M N" uniqKey="Deeter M" first="M. N." last="Deeter">M. N. Deeter</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Warner, J" sort="Warner, J" uniqKey="Warner J" first="J." last="Warner">J. Warner</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Ziskin, D C" sort="Ziskin, D C" uniqKey="Ziskin D" first="D. C." last="Ziskin">D. C. Ziskin</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Lyjak, L V" sort="Lyjak, L V" uniqKey="Lyjak L" first="L. V." last="Lyjak">L. V. Lyjak</name><affiliation><inist:fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Drummond, J R" sort="Drummond, J R" uniqKey="Drummond J" first="J. R." last="Drummond">J. R. Drummond</name><affiliation><inist:fA14 i1="04"><s1>Department of Physics, University of Toronto</s1><s2>Toronto, Ontario</s2><s3>CAN</s3><sZ>13 aut.</sZ></inist:fA14></affiliation></author><author><name sortKey="Burrows, J P" sort="Burrows, J P" uniqKey="Burrows J" first="J. P." last="Burrows">J. P. Burrows</name><affiliation><inist:fA14 i1="03"><s1>Institute of Environmental Physics, University of Bremen</s1><s2>Bremen</s2><s3>DEU</s3><sZ>5 aut.</sZ><sZ>14 aut.</sZ></inist:fA14></affiliation></author></analytic><series><title level="j" type="main">Journal of geophysical research</title><title level="j" type="abbreviated">J. geophys. res.</title><idno type="ISSN">0148-0227</idno><imprint><date when="2003">2003</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of geophysical research</title><title level="j" type="abbreviated">J. geophys. res.</title><idno type="ISSN">0148-0227</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Case study</term><term>Chemical model</term><term>ERS satellite</term><term>Equatorial Atlantic</term><term>Interhemispheric transfer</term><term>Intertropical convergence zone</term><term>Lightning</term><term>Nitrogen dioxide</term><term>Ozone</term><term>Planetary distribution</term><term>Plume</term><term>Precursor</term><term>Satellite observation</term><term>Savannah</term><term>TRMM satellite</term><term>Terra satellite</term><term>Troposphere</term><term>Vegetation fire</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Troposphère</term><term>Ozone</term><term>Observation par satellite</term><term>Feu végétation</term><term>Savane</term><term>Panache</term><term>Zone convergence intertropicale</term><term>Précurseur</term><term>Foudre</term><term>Modèle chimique</term><term>Etude cas</term><term>Transfert interhémisphérique</term><term>Satellite TRMM</term><term>Satellite ERS</term><term>Azote dioxyde</term><term>Distribution planétaire</term><term>Océan Atlantique équatorial</term><term>Satellite Terra</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">[1] We use satellite sensor measurements to obtain a broad picture of the processes affecting tropical tropospheric O<sub>3</sub> production over Africa and the Atlantic in the early part of the year. Terra/MOPITT CO retrievals correlate well with biomass burning fire counts observed by the TRMM/VIRS instrument in Northern Hemisphere savanna regions and allow investigation of the subsequent convection of the biomass burning plume at the intertropical convergence zone and interhemispheric transport. Measurements of NO<sub>2</sub> from the ERS-2/GOME instrument enable identification of two important tropical sources of this O<sub>3</sub> precursor, biomass burning and lightning. Good correlation is seen between NO<sub>2</sub> retrievals and TRMM/LIS lightning flash observations in southern African regions free of biomass burning, thus indicating a probable lightning source of NO<sub>x</sub>. The combination of MOPITT CO, GOME NO<sub>2</sub>, and TRMM fire and lightning flash counts provides a powerful tool for investigating the tropospheric production of O<sub>3</sub> precursors. These data are used in conjunction with the MOZART-2 chemical transport model to investigate the early year tropical Atlantic tropospheric O<sub>3</sub> distribution using January 2001 as a case study. Inconsistencies between the various tropical tropospheric O<sub>3</sub> column products obtained from EP/TOMS data, and between these products, in situ measurements, and modeling, have led to questions about how the Northern Hemisphere biomass burning is connected to the TOMS derived O<sub>3</sub> maximum in the tropical southern Atlantic. We show that the early year tropical O<sub>3</sub> distribution is actually characterized by two maxima. The first arises due to biomass burning emissions, is located near the Northern Hemisphere fires, and is most evident in the lower troposphere. The second is located in the southern tropical Atlantic midtroposphere, and results from NO<sub>x</sub> produced by lightning over southern Africa and South America.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0148-0227</s0></fA01><fA03 i2="1"><s0>J. geophys. res.</s0></fA03><fA05><s2>108</s2></fA05><fA06><s2>D8</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Tropospheric ozone over the tropical Atlantic: A satellite perspective</s1></fA08><fA11 i1="01" i2="1"><s1>EDWARDS (D. P.)</s1></fA11><fA11 i1="02" i2="1"><s1>LAMARQUE (J.-F.)</s1></fA11><fA11 i1="03" i2="1"><s1>ATTIE (J.-L.)</s1></fA11><fA11 i1="04" i2="1"><s1>EMMONS (L. K.)</s1></fA11><fA11 i1="05" i2="1"><s1>RICHTER (A.)</s1></fA11><fA11 i1="06" i2="1"><s1>CAMMAS (J.-P.)</s1></fA11><fA11 i1="07" i2="1"><s1>GILLE (J. C.)</s1></fA11><fA11 i1="08" i2="1"><s1>FRANCIS (G. L.)</s1></fA11><fA11 i1="09" i2="1"><s1>DEETER (M. N.)</s1></fA11><fA11 i1="10" i2="1"><s1>WARNER (J.)</s1></fA11><fA11 i1="11" i2="1"><s1>ZISKIN (D. C.)</s1></fA11><fA11 i1="12" i2="1"><s1>LYJAK (L. V.)</s1></fA11><fA11 i1="13" i2="1"><s1>DRUMMOND (J. R.)</s1></fA11><fA11 i1="14" i2="1"><s1>BURROWS (J. P.)</s1></fA11><fA14 i1="01"><s1>National Center for Atmospheric Research</s1><s2>Boulder, Colorado</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ><sZ>7 aut.</sZ><sZ>8 aut.</sZ><sZ>9 aut.</sZ><sZ>10 aut.</sZ><sZ>11 aut.</sZ><sZ>12 aut.</sZ></fA14><fA14 i1="02"><s1>Observatoire Midi Pyrénées</s1><s2>Toulouse</s2><s3>FRA</s3><sZ>3 aut.</sZ><sZ>6 aut.</sZ></fA14><fA14 i1="03"><s1>Institute of Environmental Physics, University of Bremen</s1><s2>Bremen</s2><s3>DEU</s3><sZ>5 aut.</sZ><sZ>14 aut.</sZ></fA14><fA14 i1="04"><s1>Department of Physics, University of Toronto</s1><s2>Toronto, Ontario</s2><s3>CAN</s3><sZ>13 aut.</sZ></fA14><fA20><s2>ACH2.1-ACH2.21</s2></fA20><fA21><s1>2003</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>3144</s2><s5>354000118312870530</s5></fA43><fA44><s0>0000</s0><s1>© 2003 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>1 p.1/4</s0></fA45><fA47 i1="01" i2="1"><s0>03-0384442</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Journal of geophysical research</s0></fA64><fA66 i1="01"><s0>USA</s0></fA66><fC01 i1="01" l="ENG"><s0>[1] We use satellite sensor measurements to obtain a broad picture of the processes affecting tropical tropospheric O<sub>3</sub> production over Africa and the Atlantic in the early part of the year. Terra/MOPITT CO retrievals correlate well with biomass burning fire counts observed by the TRMM/VIRS instrument in Northern Hemisphere savanna regions and allow investigation of the subsequent convection of the biomass burning plume at the intertropical convergence zone and interhemispheric transport. Measurements of NO<sub>2</sub> from the ERS-2/GOME instrument enable identification of two important tropical sources of this O<sub>3</sub> precursor, biomass burning and lightning. Good correlation is seen between NO<sub>2</sub> retrievals and TRMM/LIS lightning flash observations in southern African regions free of biomass burning, thus indicating a probable lightning source of NO<sub>x</sub>. The combination of MOPITT CO, GOME NO<sub>2</sub>, and TRMM fire and lightning flash counts provides a powerful tool for investigating the tropospheric production of O<sub>3</sub> precursors. These data are used in conjunction with the MOZART-2 chemical transport model to investigate the early year tropical Atlantic tropospheric O<sub>3</sub> distribution using January 2001 as a case study. Inconsistencies between the various tropical tropospheric O<sub>3</sub> column products obtained from EP/TOMS data, and between these products, in situ measurements, and modeling, have led to questions about how the Northern Hemisphere biomass burning is connected to the TOMS derived O<sub>3</sub> maximum in the tropical southern Atlantic. We show that the early year tropical O<sub>3</sub> distribution is actually characterized by two maxima. The first arises due to biomass burning emissions, is located near the Northern Hemisphere fires, and is most evident in the lower troposphere. The second is located in the southern tropical Atlantic midtroposphere, and results from NO<sub>x</sub> produced by lightning over southern Africa and South America.</s0></fC01><fC02 i1="01" i2="X"><s0>001E02D04</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Troposphère</s0><s5>26</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Troposphere</s0><s5>26</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Troposfera</s0><s5>26</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Ozone</s0><s2>NK</s2><s2>FX</s2><s5>27</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Ozone</s0><s2>NK</s2><s2>FX</s2><s5>27</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Ozono</s0><s2>NK</s2><s2>FX</s2><s5>27</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Observation par satellite</s0><s5>28</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Satellite observation</s0><s5>28</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Observación por satélite</s0><s5>28</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Feu végétation</s0><s5>29</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Vegetation fire</s0><s5>29</s5></fC03><fC03 i1="04" i2="X" l="SPA"><s0>Fuego vegetación</s0><s5>29</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Savane</s0><s5>30</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Savannah</s0><s5>30</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Sabana</s0><s5>30</s5></fC03><fC03 i1="06" i2="X" l="FRE"><s0>Panache</s0><s5>31</s5></fC03><fC03 i1="06" i2="X" l="ENG"><s0>Plume</s0><s5>31</s5></fC03><fC03 i1="06" i2="X" l="SPA"><s0>Penacho</s0><s5>31</s5></fC03><fC03 i1="07" i2="X" l="FRE"><s0>Zone convergence intertropicale</s0><s5>32</s5></fC03><fC03 i1="07" i2="X" l="ENG"><s0>Intertropical convergence zone</s0><s5>32</s5></fC03><fC03 i1="07" i2="X" l="SPA"><s0>Zona convergencia intertropical</s0><s5>32</s5></fC03><fC03 i1="08" i2="X" l="FRE"><s0>Précurseur</s0><s5>33</s5></fC03><fC03 i1="08" i2="X" l="ENG"><s0>Precursor</s0><s5>33</s5></fC03><fC03 i1="08" i2="X" l="SPA"><s0>Precursor</s0><s5>33</s5></fC03><fC03 i1="09" i2="X" l="FRE"><s0>Foudre</s0><s5>34</s5></fC03><fC03 i1="09" i2="X" l="ENG"><s0>Lightning</s0><s5>34</s5></fC03><fC03 i1="09" i2="X" l="SPA"><s0>Rayo</s0><s5>34</s5></fC03><fC03 i1="10" i2="X" l="FRE"><s0>Modèle chimique</s0><s5>35</s5></fC03><fC03 i1="10" i2="X" l="ENG"><s0>Chemical model</s0><s5>35</s5></fC03><fC03 i1="10" i2="X" l="SPA"><s0>Modelo químico</s0><s5>35</s5></fC03><fC03 i1="11" i2="X" l="FRE"><s0>Etude cas</s0><s5>36</s5></fC03><fC03 i1="11" i2="X" l="ENG"><s0>Case study</s0><s5>36</s5></fC03><fC03 i1="11" i2="X" l="SPA"><s0>Estudio caso</s0><s5>36</s5></fC03><fC03 i1="12" i2="X" l="FRE"><s0>Transfert interhémisphérique</s0><s5>40</s5></fC03><fC03 i1="12" i2="X" l="ENG"><s0>Interhemispheric transfer</s0><s5>40</s5></fC03><fC03 i1="12" i2="X" l="SPA"><s0>Transferencia interhemisférica</s0><s5>40</s5></fC03><fC03 i1="13" i2="X" l="FRE"><s0>Satellite TRMM</s0><s5>41</s5></fC03><fC03 i1="13" i2="X" l="ENG"><s0>TRMM satellite</s0><s5>41</s5></fC03><fC03 i1="13" i2="X" l="SPA"><s0>Satélite TRMM</s0><s5>41</s5></fC03><fC03 i1="14" i2="X" l="FRE"><s0>Satellite ERS</s0><s5>42</s5></fC03><fC03 i1="14" i2="X" l="ENG"><s0>ERS satellite</s0><s5>42</s5></fC03><fC03 i1="14" i2="X" l="SPA"><s0>Satélite ERS</s0><s5>42</s5></fC03><fC03 i1="15" i2="X" l="FRE"><s0>Azote dioxyde</s0><s2>NK</s2><s2>FX</s2><s5>43</s5></fC03><fC03 i1="15" i2="X" l="ENG"><s0>Nitrogen dioxide</s0><s2>NK</s2><s2>FX</s2><s5>43</s5></fC03><fC03 i1="15" i2="X" l="SPA"><s0>Nitrógeno dióxido</s0><s2>NK</s2><s2>FX</s2><s5>43</s5></fC03><fC03 i1="16" i2="X" l="FRE"><s0>Distribution planétaire</s0><s5>45</s5></fC03><fC03 i1="16" i2="X" l="ENG"><s0>Planetary distribution</s0><s5>45</s5></fC03><fC03 i1="16" i2="X" l="SPA"><s0>Distribución planetaria</s0><s5>45</s5></fC03><fC03 i1="17" i2="X" l="FRE"><s0>Océan Atlantique équatorial</s0><s4>CD</s4><s5>96</s5></fC03><fC03 i1="17" i2="X" l="ENG"><s0>Equatorial Atlantic</s0><s4>CD</s4><s5>96</s5></fC03><fC03 i1="17" i2="X" l="SPA"><s0>Océano Atlántico ecuatorial</s0><s4>CD</s4><s5>96</s5></fC03><fC03 i1="18" i2="X" l="FRE"><s0>Satellite Terra</s0><s4>CD</s4><s5>97</s5></fC03><fC03 i1="18" i2="X" l="ENG"><s0>Terra satellite</s0><s4>CD</s4><s5>97</s5></fC03><fC03 i1="18" i2="X" l="SPA"><s0>Satélite Terra</s0><s4>CD</s4><s5>97</s5></fC03><fN21><s1>272</s1></fN21><fN82><s1>PSI</s1></fN82></pA></standard><server><NO>PASCAL 03-0384442 INIST</NO><ET>Tropospheric ozone over the tropical Atlantic: A satellite perspective</ET><AU>EDWARDS (D. P.); LAMARQUE (J.-F.); ATTIE (J.-L.); EMMONS (L. K.); RICHTER (A.); CAMMAS (J.-P.); GILLE (J. C.); FRANCIS (G. L.); DEETER (M. N.); WARNER (J.); ZISKIN (D. C.); LYJAK (L. V.); DRUMMOND (J. R.); BURROWS (J. P.)</AU><AF>National Center for Atmospheric Research/Boulder, Colorado/Etats-Unis (1 aut., 2 aut., 4 aut., 7 aut., 8 aut., 9 aut., 10 aut., 11 aut., 12 aut.); Observatoire Midi Pyrénées/Toulouse/France (3 aut., 6 aut.); Institute of Environmental Physics, University of Bremen/Bremen/Allemagne (5 aut., 14 aut.); Department of Physics, University of Toronto/Toronto, Ontario/Canada (13 aut.)</AF><DT>Publication en série; Niveau analytique</DT><SO>Journal of geophysical research; ISSN 0148-0227; Etats-Unis; Da. 2003; Vol. 108; No. D8; ACH2.1-ACH2.21; Bibl. 1 p.1/4</SO><LA>Anglais</LA><EA>[1] We use satellite sensor measurements to obtain a broad picture of the processes affecting tropical tropospheric O<sub>3</sub> production over Africa and the Atlantic in the early part of the year. Terra/MOPITT CO retrievals correlate well with biomass burning fire counts observed by the TRMM/VIRS instrument in Northern Hemisphere savanna regions and allow investigation of the subsequent convection of the biomass burning plume at the intertropical convergence zone and interhemispheric transport. Measurements of NO<sub>2</sub> from the ERS-2/GOME instrument enable identification of two important tropical sources of this O<sub>3</sub> precursor, biomass burning and lightning. Good correlation is seen between NO<sub>2</sub> retrievals and TRMM/LIS lightning flash observations in southern African regions free of biomass burning, thus indicating a probable lightning source of NO<sub>x</sub>. The combination of MOPITT CO, GOME NO<sub>2</sub>, and TRMM fire and lightning flash counts provides a powerful tool for investigating the tropospheric production of O<sub>3</sub> precursors. These data are used in conjunction with the MOZART-2 chemical transport model to investigate the early year tropical Atlantic tropospheric O<sub>3</sub> distribution using January 2001 as a case study. Inconsistencies between the various tropical tropospheric O<sub>3</sub> column products obtained from EP/TOMS data, and between these products, in situ measurements, and modeling, have led to questions about how the Northern Hemisphere biomass burning is connected to the TOMS derived O<sub>3</sub> maximum in the tropical southern Atlantic. We show that the early year tropical O<sub>3</sub> distribution is actually characterized by two maxima. The first arises due to biomass burning emissions, is located near the Northern Hemisphere fires, and is most evident in the lower troposphere. The second is located in the southern tropical Atlantic midtroposphere, and results from NO<sub>x</sub> produced by lightning over southern Africa and South America.</EA><CC>001E02D04</CC><FD>Troposphère; Ozone; Observation par satellite; Feu végétation; Savane; Panache; Zone convergence intertropicale; Précurseur; Foudre; Modèle chimique; Etude cas; Transfert interhémisphérique; Satellite TRMM; Satellite ERS; Azote dioxyde; Distribution planétaire; Océan Atlantique équatorial; Satellite Terra</FD><ED>Troposphere; Ozone; Satellite observation; Vegetation fire; Savannah; Plume; Intertropical convergence zone; Precursor; Lightning; Chemical model; Case study; Interhemispheric transfer; TRMM satellite; ERS satellite; Nitrogen dioxide; Planetary distribution; Equatorial Atlantic; Terra satellite</ED><SD>Troposfera; Ozono; Observación por satélite; Fuego vegetación; Sabana; Penacho; Zona convergencia intertropical; Precursor; Rayo; Modelo químico; Estudio caso; Transferencia interhemisférica; Satélite TRMM; Satélite ERS; Nitrógeno dióxido; Distribución planetaria; Océano Atlántico ecuatorial; Satélite Terra</SD><LO>INIST-3144.354000118312870530</LO><ID>03-0384442</ID></server></inist></record>Pour manipuler ce document sous Unix (Dilib)
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