Characteristics of tropospheric ozone variability over an urban site in Southeast Asia: A study based on MOZAIC and MOZART vertical profiles
Identifieur interne : 000017 ( PascalFrancis/Corpus ); précédent : 000016; suivant : 000018Characteristics of tropospheric ozone variability over an urban site in Southeast Asia: A study based on MOZAIC and MOZART vertical profiles
Auteurs : L. K. Sahu ; Varun Sheel ; M. Kajino ; Sachin S. Gunthe ; Valérie Thouret ; P. Nedelec ; Herman G. SmitSource :
- Journal of geophysical research. Atmospheres : (Print) [ 2169-897X ] ; 2013.
Descripteurs français
- Pascal (Inist)
- Troposphère, Ozone, Zone urbaine, Profil vertical, Vapeur eau, Rapport mélange, Couche limite atmosphérique, Hiver, Eté, Saison humide, Variation saisonnière, Composé trace, Echelon régional, Transport grande distance, Feu végétation, Saison sèche, Modèle, Traceur, El Nino, Asie du sud est, Indonésie, Mégapole, Convection peu profonde, Convection profonde, Rétro-trajectoire.
English descriptors
- KwdEn :
- Atmospheric boundary layer, Backward trajectory, Deep convection, Dry season, El Nino, Indonesia, Long-range transport, Megacity, Mixing ratio, Rainy season, Regional scope, Shallow convection, South east Asia, Summer, Trace compound, Vegetation fire, Vertical profile, Winter, models, ozone, seasonal variations, tracers, troposphere, urban areas, water vapor.
Abstract
[1] The Measurement of Ozone and Water Vapor by Airbus In-Service Aircraft (MOZAIC) profiles of O3 and CO were analyzed to study their variation in the troposphere over Bangkok. Mixing ratios of O3 and CO were enhanced in planetary boundary layer (PBL) being highest in winter followed by summer and wet seasons. The daytime profiles of O3 show higher values compared to nighttime observations in PBL region, but little differences were observed in the free troposphere. The decreasing mixing ratios of O3 in the lower and upper troposphere were associated with shallow and deep convections, respectively. Back trajectory and fire count data indicate that the seasonal variations in trace gases were caused mainly by the regional shift in long-range transport and biomass-burning patterns. In wet season, flow of oceanic air and negligible presence of local biomass burning resulted in lowest O3 and CO, while their high levels in dry season were due to extensive biomass burning and transport of continental air masses. The Model for Ozone and Related Chemical Tracers (MOZART) underestimated both O3 and CO in the PBL region but overestimated these in the free troposphere. Simulations of O3 and CO also show the daytime/nighttime differences but do not capture several key features observed in the vertical distributions. The observed and simulated values of O3 and CO during September-November 2006 were significantly higher than the same period of 2005. The year-to-year differences were mainly due to El Nino-led extensive fires in Indonesia during 2006 but normal condition during 2005.
Notice en format standard (ISO 2709)
Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 13-0345163 INIST |
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ET : | Characteristics of tropospheric ozone variability over an urban site in Southeast Asia: A study based on MOZAIC and MOZART vertical profiles |
AU : | SAHU (L. K.); SHEEL (Varun); KAJINO (M.); GUNTHE (Sachin S.); THOURET (Valérie); NEDELEC (P.); SMIT (Herman G.) |
AF : | Physical Research Laboratory/Ahmedabad/Inde (1 aut., 2 aut.); Meteorological Research Institute, Japan Meteorological Agency/Tsukuba/Japon (3 aut.); Environmental and Water Resources Engineering Division, Department of Civil Engineering, Indian Institute of Technology Madras/Chennai/Inde (4 aut.); Laboratoire d'A'erologie, CNRS, Observatoire Midi-Pyr'en'ees, UMR/5560, Toulouse/France (5 aut.); Laboratoire d'Aérologie, Unité Mixte de Recherche 5560, Centre National de la Recherche Scientifique/Université Paul Sabatier, Observatoire Midi-Pyrénées/Toulouse/France (6 aut.); Institute for Chemistry of the Polluted Atmosphere, Research Center Jülich/Jülich/Allemagne (7 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Journal of geophysical research. Atmospheres : (Print); ISSN 2169-897X; Etats-Unis; Da. 2013; Vol. 118; No. 15; Pp. 8729-8747; Bibl. 1 p.1/2 |
LA : | Anglais |
EA : | [1] The Measurement of Ozone and Water Vapor by Airbus In-Service Aircraft (MOZAIC) profiles of O3 and CO were analyzed to study their variation in the troposphere over Bangkok. Mixing ratios of O3 and CO were enhanced in planetary boundary layer (PBL) being highest in winter followed by summer and wet seasons. The daytime profiles of O3 show higher values compared to nighttime observations in PBL region, but little differences were observed in the free troposphere. The decreasing mixing ratios of O3 in the lower and upper troposphere were associated with shallow and deep convections, respectively. Back trajectory and fire count data indicate that the seasonal variations in trace gases were caused mainly by the regional shift in long-range transport and biomass-burning patterns. In wet season, flow of oceanic air and negligible presence of local biomass burning resulted in lowest O3 and CO, while their high levels in dry season were due to extensive biomass burning and transport of continental air masses. The Model for Ozone and Related Chemical Tracers (MOZART) underestimated both O3 and CO in the PBL region but overestimated these in the free troposphere. Simulations of O3 and CO also show the daytime/nighttime differences but do not capture several key features observed in the vertical distributions. The observed and simulated values of O3 and CO during September-November 2006 were significantly higher than the same period of 2005. The year-to-year differences were mainly due to El Nino-led extensive fires in Indonesia during 2006 but normal condition during 2005. |
CC : | 001E02D |
FD : | Troposphère; Ozone; Zone urbaine; Profil vertical; Vapeur eau; Rapport mélange; Couche limite atmosphérique; Hiver; Eté; Saison humide; Variation saisonnière; Composé trace; Echelon régional; Transport grande distance; Feu végétation; Saison sèche; Modèle; Traceur; El Nino; Asie du sud est; Indonésie; Mégapole; Convection peu profonde; Convection profonde; Rétro-trajectoire |
FG : | Asie; Extrême Orient; Asie |
ED : | troposphere; ozone; urban areas; Vertical profile; water vapor; Mixing ratio; Atmospheric boundary layer; Winter; Summer; Rainy season; seasonal variations; Trace compound; Regional scope; Long-range transport; Vegetation fire; Dry season; models; tracers; El Nino; South east Asia; Indonesia; Megacity; Shallow convection; Deep convection; Backward trajectory |
EG : | Asia; Far East; Asia |
SD : | Ozono; Zona urbana; Perfil vertical; Vapor agua; Relación mezcla; Capa límite atmosférico; Invierno; Verano; Estación húmeda; Variación estacional; Compuesto huella; Escala regional; Fuego vegetación; Estación seca; Modelo; Trazador; Asia del sureste; Indonesia; Megaciudad; Convección poco profunda; Convección profunda; Retro-trayectoria |
LO : | INIST-3144D1.354000505837320430 |
ID : | 13-0345163 |
Links to Exploration step
Pascal:13-0345163Le document en format XML
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<front><div type="abstract" xml:lang="en">[1] The Measurement of Ozone and Water Vapor by Airbus In-Service Aircraft (MOZAIC) profiles of O<sub>3</sub>
and CO were analyzed to study their variation in the troposphere over Bangkok. Mixing ratios of O<sub>3</sub>
and CO were enhanced in planetary boundary layer (PBL) being highest in winter followed by summer and wet seasons. The daytime profiles of O<sub>3</sub>
show higher values compared to nighttime observations in PBL region, but little differences were observed in the free troposphere. The decreasing mixing ratios of O<sub>3</sub>
in the lower and upper troposphere were associated with shallow and deep convections, respectively. Back trajectory and fire count data indicate that the seasonal variations in trace gases were caused mainly by the regional shift in long-range transport and biomass-burning patterns. In wet season, flow of oceanic air and negligible presence of local biomass burning resulted in lowest O<sub>3</sub>
and CO, while their high levels in dry season were due to extensive biomass burning and transport of continental air masses. The Model for Ozone and Related Chemical Tracers (MOZART) underestimated both O<sub>3</sub>
and CO in the PBL region but overestimated these in the free troposphere. Simulations of O<sub>3</sub>
and CO also show the daytime/nighttime differences but do not capture several key features observed in the vertical distributions. The observed and simulated values of O<sub>3</sub>
and CO during September-November 2006 were significantly higher than the same period of 2005. The year-to-year differences were mainly due to El Nino-led extensive fires in Indonesia during 2006 but normal condition during 2005.</div>
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<fC01 i1="01" l="ENG"><s0>[1] The Measurement of Ozone and Water Vapor by Airbus In-Service Aircraft (MOZAIC) profiles of O<sub>3</sub>
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and CO were enhanced in planetary boundary layer (PBL) being highest in winter followed by summer and wet seasons. The daytime profiles of O<sub>3</sub>
show higher values compared to nighttime observations in PBL region, but little differences were observed in the free troposphere. The decreasing mixing ratios of O<sub>3</sub>
in the lower and upper troposphere were associated with shallow and deep convections, respectively. Back trajectory and fire count data indicate that the seasonal variations in trace gases were caused mainly by the regional shift in long-range transport and biomass-burning patterns. In wet season, flow of oceanic air and negligible presence of local biomass burning resulted in lowest O<sub>3</sub>
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and CO in the PBL region but overestimated these in the free troposphere. Simulations of O<sub>3</sub>
and CO also show the daytime/nighttime differences but do not capture several key features observed in the vertical distributions. The observed and simulated values of O<sub>3</sub>
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<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Mixing ratio</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Relación mezcla</s0>
<s5>06</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Couche limite atmosphérique</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Atmospheric boundary layer</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Capa límite atmosférico</s0>
<s5>07</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Hiver</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Winter</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Invierno</s0>
<s5>08</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Eté</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Summer</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Verano</s0>
<s5>09</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Saison humide</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Rainy season</s0>
<s5>10</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Estación húmeda</s0>
<s5>10</s5>
</fC03>
<fC03 i1="11" i2="2" l="FRE"><s0>Variation saisonnière</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="2" l="ENG"><s0>seasonal variations</s0>
<s5>11</s5>
</fC03>
<fC03 i1="11" i2="2" l="SPA"><s0>Variación estacional</s0>
<s5>11</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE"><s0>Composé trace</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG"><s0>Trace compound</s0>
<s5>12</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA"><s0>Compuesto huella</s0>
<s5>12</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Echelon régional</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Regional scope</s0>
<s5>13</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Escala regional</s0>
<s5>13</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE"><s0>Transport grande distance</s0>
<s5>14</s5>
</fC03>
<fC03 i1="14" i2="3" l="ENG"><s0>Long-range transport</s0>
<s5>14</s5>
</fC03>
<fC03 i1="15" i2="X" l="FRE"><s0>Feu végétation</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="ENG"><s0>Vegetation fire</s0>
<s5>15</s5>
</fC03>
<fC03 i1="15" i2="X" l="SPA"><s0>Fuego vegetación</s0>
<s5>15</s5>
</fC03>
<fC03 i1="16" i2="X" l="FRE"><s0>Saison sèche</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="ENG"><s0>Dry season</s0>
<s5>16</s5>
</fC03>
<fC03 i1="16" i2="X" l="SPA"><s0>Estación seca</s0>
<s5>16</s5>
</fC03>
<fC03 i1="17" i2="2" l="FRE"><s0>Modèle</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="2" l="ENG"><s0>models</s0>
<s5>17</s5>
</fC03>
<fC03 i1="17" i2="2" l="SPA"><s0>Modelo</s0>
<s5>17</s5>
</fC03>
<fC03 i1="18" i2="2" l="FRE"><s0>Traceur</s0>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="2" l="ENG"><s0>tracers</s0>
<s5>18</s5>
</fC03>
<fC03 i1="18" i2="2" l="SPA"><s0>Trazador</s0>
<s5>18</s5>
</fC03>
<fC03 i1="19" i2="2" l="FRE"><s0>El Nino</s0>
<s5>19</s5>
</fC03>
<fC03 i1="19" i2="2" l="ENG"><s0>El Nino</s0>
<s5>19</s5>
</fC03>
<fC03 i1="20" i2="X" l="FRE"><s0>Asie du sud est</s0>
<s2>NG</s2>
<s5>21</s5>
</fC03>
<fC03 i1="20" i2="X" l="ENG"><s0>South east Asia</s0>
<s2>NG</s2>
<s5>21</s5>
</fC03>
<fC03 i1="20" i2="X" l="SPA"><s0>Asia del sureste</s0>
<s2>NG</s2>
<s5>21</s5>
</fC03>
<fC03 i1="21" i2="2" l="FRE"><s0>Indonésie</s0>
<s2>NG</s2>
<s5>22</s5>
</fC03>
<fC03 i1="21" i2="2" l="ENG"><s0>Indonesia</s0>
<s2>NG</s2>
<s5>22</s5>
</fC03>
<fC03 i1="21" i2="2" l="SPA"><s0>Indonesia</s0>
<s2>NG</s2>
<s5>22</s5>
</fC03>
<fC03 i1="22" i2="2" l="FRE"><s0>Mégapole</s0>
<s4>CD</s4>
<s5>96</s5>
</fC03>
<fC03 i1="22" i2="2" l="ENG"><s0>Megacity</s0>
<s4>CD</s4>
<s5>96</s5>
</fC03>
<fC03 i1="22" i2="2" l="SPA"><s0>Megaciudad</s0>
<s4>CD</s4>
<s5>96</s5>
</fC03>
<fC03 i1="23" i2="2" l="FRE"><s0>Convection peu profonde</s0>
<s4>CD</s4>
<s5>97</s5>
</fC03>
<fC03 i1="23" i2="2" l="ENG"><s0>Shallow convection</s0>
<s4>CD</s4>
<s5>97</s5>
</fC03>
<fC03 i1="23" i2="2" l="SPA"><s0>Convección poco profunda</s0>
<s4>CD</s4>
<s5>97</s5>
</fC03>
<fC03 i1="24" i2="2" l="FRE"><s0>Convection profonde</s0>
<s4>CD</s4>
<s5>98</s5>
</fC03>
<fC03 i1="24" i2="2" l="ENG"><s0>Deep convection</s0>
<s4>CD</s4>
<s5>98</s5>
</fC03>
<fC03 i1="24" i2="2" l="SPA"><s0>Convección profunda</s0>
<s4>CD</s4>
<s5>98</s5>
</fC03>
<fC03 i1="25" i2="2" l="FRE"><s0>Rétro-trajectoire</s0>
<s4>CD</s4>
<s5>99</s5>
</fC03>
<fC03 i1="25" i2="2" l="ENG"><s0>Backward trajectory</s0>
<s4>CD</s4>
<s5>99</s5>
</fC03>
<fC03 i1="25" i2="2" l="SPA"><s0>Retro-trayectoria</s0>
<s4>CD</s4>
<s5>99</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Asie</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Asia</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Asia</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="02" i2="2" l="FRE"><s0>Extrême Orient</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="02" i2="2" l="ENG"><s0>Far East</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="02" i2="2" l="SPA"><s0>Extremo Oriente</s0>
<s2>NG</s2>
</fC07>
<fC07 i1="03" i2="2" l="FRE"><s0>Asie</s0>
<s2>564</s2>
</fC07>
<fC07 i1="03" i2="2" l="ENG"><s0>Asia</s0>
<s2>564</s2>
</fC07>
<fC07 i1="03" i2="2" l="SPA"><s0>Asia</s0>
<s2>564</s2>
</fC07>
<fN21><s1>329</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
</standard>
<server><NO>PASCAL 13-0345163 INIST</NO>
<ET>Characteristics of tropospheric ozone variability over an urban site in Southeast Asia: A study based on MOZAIC and MOZART vertical profiles</ET>
<AU>SAHU (L. K.); SHEEL (Varun); KAJINO (M.); GUNTHE (Sachin S.); THOURET (Valérie); NEDELEC (P.); SMIT (Herman G.)</AU>
<AF>Physical Research Laboratory/Ahmedabad/Inde (1 aut., 2 aut.); Meteorological Research Institute, Japan Meteorological Agency/Tsukuba/Japon (3 aut.); Environmental and Water Resources Engineering Division, Department of Civil Engineering, Indian Institute of Technology Madras/Chennai/Inde (4 aut.); Laboratoire d'A'erologie, CNRS, Observatoire Midi-Pyr'en'ees, UMR/5560, Toulouse/France (5 aut.); Laboratoire d'Aérologie, Unité Mixte de Recherche 5560, Centre National de la Recherche Scientifique/Université Paul Sabatier, Observatoire Midi-Pyrénées/Toulouse/France (6 aut.); Institute for Chemistry of the Polluted Atmosphere, Research Center Jülich/Jülich/Allemagne (7 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of geophysical research. Atmospheres : (Print); ISSN 2169-897X; Etats-Unis; Da. 2013; Vol. 118; No. 15; Pp. 8729-8747; Bibl. 1 p.1/2</SO>
<LA>Anglais</LA>
<EA>[1] The Measurement of Ozone and Water Vapor by Airbus In-Service Aircraft (MOZAIC) profiles of O<sub>3</sub>
and CO were analyzed to study their variation in the troposphere over Bangkok. Mixing ratios of O<sub>3</sub>
and CO were enhanced in planetary boundary layer (PBL) being highest in winter followed by summer and wet seasons. The daytime profiles of O<sub>3</sub>
show higher values compared to nighttime observations in PBL region, but little differences were observed in the free troposphere. The decreasing mixing ratios of O<sub>3</sub>
in the lower and upper troposphere were associated with shallow and deep convections, respectively. Back trajectory and fire count data indicate that the seasonal variations in trace gases were caused mainly by the regional shift in long-range transport and biomass-burning patterns. In wet season, flow of oceanic air and negligible presence of local biomass burning resulted in lowest O<sub>3</sub>
and CO, while their high levels in dry season were due to extensive biomass burning and transport of continental air masses. The Model for Ozone and Related Chemical Tracers (MOZART) underestimated both O<sub>3</sub>
and CO in the PBL region but overestimated these in the free troposphere. Simulations of O<sub>3</sub>
and CO also show the daytime/nighttime differences but do not capture several key features observed in the vertical distributions. The observed and simulated values of O<sub>3</sub>
and CO during September-November 2006 were significantly higher than the same period of 2005. The year-to-year differences were mainly due to El Nino-led extensive fires in Indonesia during 2006 but normal condition during 2005.</EA>
<CC>001E02D</CC>
<FD>Troposphère; Ozone; Zone urbaine; Profil vertical; Vapeur eau; Rapport mélange; Couche limite atmosphérique; Hiver; Eté; Saison humide; Variation saisonnière; Composé trace; Echelon régional; Transport grande distance; Feu végétation; Saison sèche; Modèle; Traceur; El Nino; Asie du sud est; Indonésie; Mégapole; Convection peu profonde; Convection profonde; Rétro-trajectoire</FD>
<FG>Asie; Extrême Orient; Asie</FG>
<ED>troposphere; ozone; urban areas; Vertical profile; water vapor; Mixing ratio; Atmospheric boundary layer; Winter; Summer; Rainy season; seasonal variations; Trace compound; Regional scope; Long-range transport; Vegetation fire; Dry season; models; tracers; El Nino; South east Asia; Indonesia; Megacity; Shallow convection; Deep convection; Backward trajectory</ED>
<EG>Asia; Far East; Asia</EG>
<SD>Ozono; Zona urbana; Perfil vertical; Vapor agua; Relación mezcla; Capa límite atmosférico; Invierno; Verano; Estación húmeda; Variación estacional; Compuesto huella; Escala regional; Fuego vegetación; Estación seca; Modelo; Trazador; Asia del sureste; Indonesia; Megaciudad; Convección poco profunda; Convección profunda; Retro-trayectoria</SD>
<LO>INIST-3144D1.354000505837320430</LO>
<ID>13-0345163</ID>
</server>
</inist>
</record>
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