Simultaneous mass balance inverse modeling of methane and carbon monoxide
Identifieur interne : 00A231 ( Main/Curation ); précédent : 00A230; suivant : 00A232Simultaneous mass balance inverse modeling of methane and carbon monoxide
Auteurs : T. M. Butler [Allemagne] ; P. J. Rayner [Australie, France] ; I. Simmonds [Australie] ; M. G. Lawrence [Allemagne]Source :
- Journal of Geophysical Research: Atmospheres [ 0148-0227 ] ; 2005-11-16.
Descripteurs français
- Pascal (Inist)
- Air, Anomalie, Bilan masse, Carbone monoxyde, Concentration, Echantillonnage, Feu végétation, Gaz effet serre, Masse air, Modèle, Modélisation, Monde, Monoxyde carbone, Méthane, NOAA, Problème inverse, Radical hydroxyle, Rapport mélange, Réseau, Résolution spatiale, Transport, Troposphère, Variation interannuelle, Zone humide.
- Wicri :
- topic : Biomasse, Zone humide.
English descriptors
- KwdEn :
- Air mass, Anomalous, Anomalously, Anomaly, Atmospheric methane, Biomass, Boundary condition, Butler, Carbon monoxide, Chemical transport model, Concentration boundary condition, Corun, December, Dentener, Dlugokencky, Emissions anomaly, Emissions factors, Flux anomalies, Flux anomaly, Geophys, Global, Global biogeochem, Hydroxyl radicals, Interannual, Interannual variability, Interannual variation, Interannual variations, Inverse, Inverse modeling, Inversion, July, Krol, Lelieveld, Mass balance, Measurement record, Methane, Methane emissions, Mikaloff fletcher, Mixing ratio, Modeling, Monoxide, NOAA, Northern hemisphere, Novelli, Percentage difference, Ratio anomalies, Ratio anomaly, Sampling network, Second half, Simultaneous mass balance, Solid line, Source processes, Tropospheric, Variability, Vegetation fire, Vohralik, Werf, Wetland, Wetland emissions, Wetland model, air, anomalies, carbon monoxide, concentration, global, greenhouse gas, inverse problem, mass balance, methane, models, networks, sampling, spatial resolution, transport, troposphere, wetlands.
- Teeft :
- Anomalous, Anomalously, Anomaly, Atmospheric methane, Biomass, Boundary condition, Butler, Carbon monoxide, Chemical transport model, Concentration boundary condition, Corun, December, Dentener, Dlugokencky, Emissions anomaly, Emissions factors, Flux anomalies, Flux anomaly, Geophys, Global, Global biogeochem, Interannual, Interannual variability, Interannual variations, Inverse, Inverse modeling, Inversion, July, Krol, Lelieveld, Mass balance, Measurement record, Methane, Methane emissions, Mikaloff fletcher, Modeling, Monoxide, Northern hemisphere, Novelli, Percentage difference, Ratio anomalies, Ratio anomaly, Sampling network, Second half, Simultaneous mass balance, Solid line, Source processes, Tropospheric, Variability, Vohralik, Werf, Wetland, Wetland emissions, Wetland model.
Abstract
We perform a simultaneous mass‐balance inversion of atmospheric methane (CH4) and carbon monoxide (CO) using measurements from the NOAA/CMDL Cooperative Air Sampling Network and a model of tropospheric transport and background chemistry over the period 1990–2000. Our method has a spatial resolution of a semihemisphere and a temporal resolution of 1 month. The deduced CO sources show relatively low interannual variability except around the major biomass burning event in 1997–1998, when we calculate an anomalous emission between July 1997 and December 1998 of 270 Tg(CO). This is enough to suppress the modeled global air mass weighted hydroxyl radical (OH) concentration during this time by 2.2%, and account for 75% of the observed increase in CH4 mixing ratios during 1998. We compare our implied CH4/CO emissions factors with published biomass burning emissions factors, suggesting that the remainder of the increase in CH4 observed in 1998 is due to anomalously high biomass burning emissions, with CH4 emissions from wetlands showing a small negative anomaly in 1998.
Url:
DOI: 10.1029/2005JD006071
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<term>Atmospheric methane</term>
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<term>Inversion</term>
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<term>Mass balance</term>
<term>Measurement record</term>
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<term>Methane emissions</term>
<term>Mikaloff fletcher</term>
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<term>Monoxide</term>
<term>NOAA</term>
<term>Northern hemisphere</term>
<term>Novelli</term>
<term>Percentage difference</term>
<term>Ratio anomalies</term>
<term>Ratio anomaly</term>
<term>Sampling network</term>
<term>Second half</term>
<term>Simultaneous mass balance</term>
<term>Solid line</term>
<term>Source processes</term>
<term>Tropospheric</term>
<term>Variability</term>
<term>Vegetation fire</term>
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<term>carbon monoxide</term>
<term>concentration</term>
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<term>greenhouse gas</term>
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<term>mass balance</term>
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<term>networks</term>
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<term>Anomalie</term>
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<term>Carbone monoxyde</term>
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<term>Echantillonnage</term>
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<term>Gaz effet serre</term>
<term>Masse air</term>
<term>Modèle</term>
<term>Modélisation</term>
<term>Monde</term>
<term>Monoxyde carbone</term>
<term>Méthane</term>
<term>NOAA</term>
<term>Problème inverse</term>
<term>Radical hydroxyle</term>
<term>Rapport mélange</term>
<term>Réseau</term>
<term>Résolution spatiale</term>
<term>Transport</term>
<term>Troposphère</term>
<term>Variation interannuelle</term>
<term>Zone humide</term>
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<term>Mass balance</term>
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<front><div type="abstract">We perform a simultaneous mass‐balance inversion of atmospheric methane (CH4) and carbon monoxide (CO) using measurements from the NOAA/CMDL Cooperative Air Sampling Network and a model of tropospheric transport and background chemistry over the period 1990–2000. Our method has a spatial resolution of a semihemisphere and a temporal resolution of 1 month. The deduced CO sources show relatively low interannual variability except around the major biomass burning event in 1997–1998, when we calculate an anomalous emission between July 1997 and December 1998 of 270 Tg(CO). This is enough to suppress the modeled global air mass weighted hydroxyl radical (OH) concentration during this time by 2.2%, and account for 75% of the observed increase in CH4 mixing ratios during 1998. We compare our implied CH4/CO emissions factors with published biomass burning emissions factors, suggesting that the remainder of the increase in CH4 observed in 1998 is due to anomalously high biomass burning emissions, with CH4 emissions from wetlands showing a small negative anomaly in 1998.</div>
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<term>anomalies</term>
<term>carbon monoxide</term>
<term>concentration</term>
<term>global</term>
<term>greenhouse gas</term>
<term>inverse problem</term>
<term>mass balance</term>
<term>methane</term>
<term>models</term>
<term>networks</term>
<term>sampling</term>
<term>spatial resolution</term>
<term>transport</term>
<term>troposphere</term>
<term>wetlands</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Bilan masse</term>
<term>Modélisation</term>
<term>Méthane</term>
<term>Monoxyde carbone</term>
<term>Carbone monoxyde</term>
<term>Problème inverse</term>
<term>NOAA</term>
<term>Air</term>
<term>Echantillonnage</term>
<term>Réseau</term>
<term>Modèle</term>
<term>Troposphère</term>
<term>Transport</term>
<term>Résolution spatiale</term>
<term>Variation interannuelle</term>
<term>Feu végétation</term>
<term>Monde</term>
<term>Masse air</term>
<term>Radical hydroxyle</term>
<term>Concentration</term>
<term>Rapport mélange</term>
<term>Zone humide</term>
<term>Anomalie</term>
<term>Gaz effet serre</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Zone humide</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">We perform a simultaneous mass-balance inversion of atmospheric methane (CH<sub>4</sub>
) and carbon monoxide (CO) using measurements from the NOAA/CMDL Cooperative Air Sampling Network and a model of tropospheric transport and background chemistry over the period 1990-2000. Our method has a spatial resolution of a semihemisphere and a temporal resolution of 1 month. The deduced CO sources show relatively low interannual variability except around the major biomass burning event in 1997-1998, when we calculate an anomalous emission between July 1997 and December 1998 of 270 Tg(CO). This is enough to suppress the modeled global air mass weighted hydroxyl radical (OH) concentration during this time by 2.2%, and account for 75% of the observed increase in CH<sub>4</sub>
mixing ratios during 1998. We compare our implied CH<sub>4</sub>
/CO emissions factors with published biomass burning emissions factors, suggesting that the remainder of the increase in CH<sub>4</sub>
observed in 1998 is due to anomalously high biomass burning emissions, with CH<sub>4</sub>
emissions from wetlands showing a small negative anomaly in 1998.</div>
</front>
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<author><name sortKey="Butler, T M" sort="Butler, T M" uniqKey="Butler T" first="T. M." last="Butler">T. M. Butler</name>
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<author><name sortKey="Rayner, P J" sort="Rayner, P J" uniqKey="Rayner P" first="P. J." last="Rayner">P. J. Rayner</name>
</author>
<author><name sortKey="Simmonds, I" sort="Simmonds, I" uniqKey="Simmonds I" first="I." last="Simmonds">I. Simmonds</name>
</author>
<author><name sortKey="Lawrence, M G" sort="Lawrence, M G" uniqKey="Lawrence M" first="M. G." last="Lawrence">M. G. Lawrence</name>
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<idno type="doi">10.1029/2005JD006071</idno>
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<sourceDesc><biblStruct><analytic><title level="a" type="main">Simultaneous mass balance inverse modeling of methane and carbon monoxide</title>
<author><name sortKey="Butler, T M" sort="Butler, T M" uniqKey="Butler T" first="T. M." last="Butler">T. M. Butler</name>
<affiliation wicri:level="1"><country wicri:rule="url">Allemagne</country>
</affiliation>
<affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Department of Air Chemistry, Max Planck Institute for Chemistry, Mainz</wicri:regionArea>
<placeName><region type="land" nuts="2">Rhénanie-Palatinat</region>
<settlement type="city">Mayence</settlement>
</placeName>
</affiliation>
<affiliation wicri:level="1"><country wicri:rule="url">Allemagne</country>
</affiliation>
</author>
<author><name sortKey="Rayner, P J" sort="Rayner, P J" uniqKey="Rayner P" first="P. J." last="Rayner">P. J. Rayner</name>
<affiliation wicri:level="1"><country xml:lang="fr">Australie</country>
<wicri:regionArea>CSIRO Atmospheric Research, Aspendale, Victoria</wicri:regionArea>
<wicri:noRegion>Victoria</wicri:noRegion>
</affiliation>
<affiliation wicri:level="3"><country xml:lang="fr">France</country>
<wicri:regionArea>Now at Laboratoire des Sciences du Climat et de l'Environnement, CEA de Saclay Orme des Merisiers, Gif sur Yvette</wicri:regionArea>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Gif-sur-Yvette</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Simmonds, I" sort="Simmonds, I" uniqKey="Simmonds I" first="I." last="Simmonds">I. Simmonds</name>
<affiliation wicri:level="4"><country xml:lang="fr">Australie</country>
<wicri:regionArea>School of Earth Sciences, University of Melbourne, Parkville, Victoria</wicri:regionArea>
<orgName type="university">Université de Melbourne</orgName>
<placeName><settlement type="city">Melbourne</settlement>
<region type="état">Victoria (État)</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Lawrence, M G" sort="Lawrence, M G" uniqKey="Lawrence M" first="M. G." last="Lawrence">M. G. Lawrence</name>
<affiliation wicri:level="3"><country xml:lang="fr">Allemagne</country>
<wicri:regionArea>Department of Air Chemistry, Max Planck Institute for Chemistry, Mainz</wicri:regionArea>
<placeName><region type="land" nuts="2">Rhénanie-Palatinat</region>
<settlement type="city">Mayence</settlement>
</placeName>
</affiliation>
</author>
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<monogr></monogr>
<series><title level="j" type="main">Journal of Geophysical Research: Atmospheres</title>
<title level="j" type="alt">JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES</title>
<idno type="ISSN">0148-0227</idno>
<idno type="eISSN">2156-2202</idno>
<imprint><biblScope unit="vol">110</biblScope>
<biblScope unit="issue">D21</biblScope>
<biblScope unit="page-count">11</biblScope>
<date type="published" when="2005-11-16">2005-11-16</date>
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<idno type="ISSN">0148-0227</idno>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anomalous</term>
<term>Anomalously</term>
<term>Anomaly</term>
<term>Atmospheric methane</term>
<term>Biomass</term>
<term>Boundary condition</term>
<term>Butler</term>
<term>Carbon monoxide</term>
<term>Chemical transport model</term>
<term>Concentration boundary condition</term>
<term>Corun</term>
<term>December</term>
<term>Dentener</term>
<term>Dlugokencky</term>
<term>Emissions anomaly</term>
<term>Emissions factors</term>
<term>Flux anomalies</term>
<term>Flux anomaly</term>
<term>Geophys</term>
<term>Global</term>
<term>Global biogeochem</term>
<term>Interannual</term>
<term>Interannual variability</term>
<term>Interannual variations</term>
<term>Inverse</term>
<term>Inverse modeling</term>
<term>Inversion</term>
<term>July</term>
<term>Krol</term>
<term>Lelieveld</term>
<term>Mass balance</term>
<term>Measurement record</term>
<term>Methane</term>
<term>Methane emissions</term>
<term>Mikaloff fletcher</term>
<term>Modeling</term>
<term>Monoxide</term>
<term>Northern hemisphere</term>
<term>Novelli</term>
<term>Percentage difference</term>
<term>Ratio anomalies</term>
<term>Ratio anomaly</term>
<term>Sampling network</term>
<term>Second half</term>
<term>Simultaneous mass balance</term>
<term>Solid line</term>
<term>Source processes</term>
<term>Tropospheric</term>
<term>Variability</term>
<term>Vohralik</term>
<term>Werf</term>
<term>Wetland</term>
<term>Wetland emissions</term>
<term>Wetland model</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Anomalous</term>
<term>Anomalously</term>
<term>Anomaly</term>
<term>Atmospheric methane</term>
<term>Biomass</term>
<term>Boundary condition</term>
<term>Butler</term>
<term>Carbon monoxide</term>
<term>Chemical transport model</term>
<term>Concentration boundary condition</term>
<term>Corun</term>
<term>December</term>
<term>Dentener</term>
<term>Dlugokencky</term>
<term>Emissions anomaly</term>
<term>Emissions factors</term>
<term>Flux anomalies</term>
<term>Flux anomaly</term>
<term>Geophys</term>
<term>Global</term>
<term>Global biogeochem</term>
<term>Interannual</term>
<term>Interannual variability</term>
<term>Interannual variations</term>
<term>Inverse</term>
<term>Inverse modeling</term>
<term>Inversion</term>
<term>July</term>
<term>Krol</term>
<term>Lelieveld</term>
<term>Mass balance</term>
<term>Measurement record</term>
<term>Methane</term>
<term>Methane emissions</term>
<term>Mikaloff fletcher</term>
<term>Modeling</term>
<term>Monoxide</term>
<term>Northern hemisphere</term>
<term>Novelli</term>
<term>Percentage difference</term>
<term>Ratio anomalies</term>
<term>Ratio anomaly</term>
<term>Sampling network</term>
<term>Second half</term>
<term>Simultaneous mass balance</term>
<term>Solid line</term>
<term>Source processes</term>
<term>Tropospheric</term>
<term>Variability</term>
<term>Vohralik</term>
<term>Werf</term>
<term>Wetland</term>
<term>Wetland emissions</term>
<term>Wetland model</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Biomasse</term>
</keywords>
</textClass>
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</teiHeader>
<front><div type="abstract">We perform a simultaneous mass‐balance inversion of atmospheric methane (CH4) and carbon monoxide (CO) using measurements from the NOAA/CMDL Cooperative Air Sampling Network and a model of tropospheric transport and background chemistry over the period 1990–2000. Our method has a spatial resolution of a semihemisphere and a temporal resolution of 1 month. The deduced CO sources show relatively low interannual variability except around the major biomass burning event in 1997–1998, when we calculate an anomalous emission between July 1997 and December 1998 of 270 Tg(CO). This is enough to suppress the modeled global air mass weighted hydroxyl radical (OH) concentration during this time by 2.2%, and account for 75% of the observed increase in CH4 mixing ratios during 1998. We compare our implied CH4/CO emissions factors with published biomass burning emissions factors, suggesting that the remainder of the increase in CH4 observed in 1998 is due to anomalously high biomass burning emissions, with CH4 emissions from wetlands showing a small negative anomaly in 1998.</div>
</front>
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