MozartV1, Main, Exploration, bibRecord, 000499

CO2 semiannual oscillation in the middle troposphere and at the surface

Identifieur interne : 000499 ( Main/Exploration ); précédent : 000498; suivant : 000500

CO2 semiannual oscillation in the middle troposphere and at the surface

Auteurs : XUN JIANG [États-Unis] ; Moustafa T. Chahine [États-Unis] ; QINBIN LI [États-Unis] ; MAOCHANG LIANG [Taïwan] ; Edward T. Olsen [États-Unis] ; Luke L. Chen [États-Unis] ; JINGQIAN WANG [États-Unis] ; Yuk L. Yung [États-Unis]

Source :

Global biogeochemical cycles [ 0886-6236 ] ; 2012.

RBID : Pascal:12-0426387

Descripteurs français

Pascal (Inist)
- Dioxyde de carbone, Oscillation, In situ, Transport, Modèle, Signal, Biosphère, Atmosphère, Capture, Cycle, Simulation.
Wicri :
- topic : Biosphère, Atmosphère, Simulation.

English descriptors

KwdEn :
- Capture, Carbon dioxide, atmosphere, biosphere, cycles, in situ, models, oscillations, signals, simulation, transport.

Abstract

Using in situ measurements, we find a semiannual oscillation (SAO) in the midtropospheric and surface CO₂. Chemistry transport models (2-D Caltech/JPL model, 3-D GEOS-Chem, and 3-D MOZART-2) are used to investigate possible sources for the SAO signal in the midtropospheric and surface CO₂. From model sensitivity studies, it is revealed that the SAO signal in the midtropospheric CO₂ originates mainly from surface CO₂ with a small contribution from transport fields. It is also found that the source for the SAO signal in surface CO₂ is mostly related to the CO₂ exchange between the biosphere and the atmosphere. By comparing model CO₂ with in situ CO₂ measurements at the surface, we find that models are able to capture both annual and semiannual cycles well at the surface. Model simulations of the annual and semiannual cycles of CO₂ in the tropical middle troposphere agree reasonably well with aircraft measurements.

Affiliations:

Taïwan, États-Unis
Californie, Texas

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to stream PascalFrancis, to step Curation: 000103
to stream PascalFrancis, to step Checkpoint: 000021
to stream Main, to step Merge: 000499
to stream Main, to step Curation: 000499

Le document en format XML

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 semiannual oscillation in the middle troposphere and at the surface</title>
<author><name sortKey="Xun Jiang" sort="Xun Jiang" uniqKey="Xun Jiang" last="Xun Jiang">XUN JIANG</name>
<affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Earth and Atmospheric Sciences, University of Houston</s1>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">CO<sub>2</sub>
 semiannual oscillation in the middle troposphere and at the surface</title>
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<author><name sortKey="Yung, Yuk L" sort="Yung, Yuk L" uniqKey="Yung Y" first="Yuk L." last="Yung">Yuk L. Yung</name>
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<series><title level="j" type="main">Global biogeochemical cycles</title>
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<imprint><date when="2012">2012</date>
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<seriesStmt><title level="j" type="main">Global biogeochemical cycles</title>
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<idno type="ISSN">0886-6236</idno>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Capture</term>
<term>Carbon dioxide</term>
<term>atmosphere</term>
<term>biosphere</term>
<term>cycles</term>
<term>in situ</term>
<term>models</term>
<term>oscillations</term>
<term>signals</term>
<term>simulation</term>
<term>transport</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Dioxyde de carbone</term>
<term>Oscillation</term>
<term>In situ</term>
<term>Transport</term>
<term>Modèle</term>
<term>Signal</term>
<term>Biosphère</term>
<term>Atmosphère</term>
<term>Capture</term>
<term>Cycle</term>
<term>Simulation</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Biosphère</term>
<term>Atmosphère</term>
<term>Simulation</term>
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<front><div type="abstract" xml:lang="en">Using in situ measurements, we find a semiannual oscillation (SAO) in the midtropospheric and surface CO<sub>2</sub>
. Chemistry transport models (2-D Caltech/JPL model, 3-D GEOS-Chem, and 3-D MOZART-2) are used to investigate possible sources for the SAO signal in the midtropospheric and surface CO<sub>2</sub>
. From model sensitivity studies, it is revealed that the SAO signal in the midtropospheric CO<sub>2</sub>
 originates mainly from surface CO<sub>2</sub>
 with a small contribution from transport fields. It is also found that the source for the SAO signal in surface CO<sub>2</sub>
 is mostly related to the CO<sub>2</sub>
 exchange between the biosphere and the atmosphere. By comparing model CO<sub>2</sub>
 with in situ CO<sub>2</sub>
 measurements at the surface, we find that models are able to capture both annual and semiannual cycles well at the surface. Model simulations of the annual and semiannual cycles of CO<sub>2</sub>
 in the tropical middle troposphere agree reasonably well with aircraft measurements.</div>
</front>
</TEI>
<affiliations><list><country><li>Taïwan</li>
<li>États-Unis</li>
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<tree><country name="États-Unis"><region name="Texas"><name sortKey="Xun Jiang" sort="Xun Jiang" uniqKey="Xun Jiang" last="Xun Jiang">XUN JIANG</name>
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<name sortKey="Chahine, Moustafa T" sort="Chahine, Moustafa T" uniqKey="Chahine M" first="Moustafa T." last="Chahine">Moustafa T. Chahine</name>
<name sortKey="Chen, Luke L" sort="Chen, Luke L" uniqKey="Chen L" first="Luke L." last="Chen">Luke L. Chen</name>
<name sortKey="Jingqian Wang" sort="Jingqian Wang" uniqKey="Jingqian Wang" last="Jingqian Wang">JINGQIAN WANG</name>
<name sortKey="Olsen, Edward T" sort="Olsen, Edward T" uniqKey="Olsen E" first="Edward T." last="Olsen">Edward T. Olsen</name>
<name sortKey="Qinbin Li" sort="Qinbin Li" uniqKey="Qinbin Li" last="Qinbin Li">QINBIN LI</name>
<name sortKey="Yung, Yuk L" sort="Yung, Yuk L" uniqKey="Yung Y" first="Yuk L." last="Yung">Yuk L. Yung</name>
</country>
<country name="Taïwan"><noRegion><name sortKey="Maochang Liang" sort="Maochang Liang" uniqKey="Maochang Liang" last="Maochang Liang">MAOCHANG LIANG</name>
</noRegion>
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</record>

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CO2 semiannual oscillation in the middle troposphere and at the surface

CO2 semiannual oscillation in the middle troposphere and at the surface

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri