MozartV1, PascalFrancis, Corpus, bibRecord, 000190

Biogenic methanol and its impacts on tropospheric oxidants

Identifieur interne : 000190 ( PascalFrancis/Corpus ); précédent : 000189; suivant : 000191

Biogenic methanol and its impacts on tropospheric oxidants

Auteurs : XUEXI TIE ; Alex Guenther ; Elisabeth Holland

Source :

Geophysical research letters [ 0094-8276 ] ; 2003.

RBID : Pascal:04-0267154

Descripteurs français

Pascal (Inist)
- Méthanol, Troposphère, Oxydant, Monde, Transport, Modèle prévision, Pli, Hydrocarbure, Isoprène, Monoterpène, Durée vie, Couche limite, Incertitude, Inclusion, Courant, Prévision.

English descriptors

KwdEn :
- Forecast model, Isoprene, Lifetime, Methanol, Monoterpene, Oxidant, Uncertainty, boundary layer, currents, folds, global, hydrocarbons, inclusions, prediction, transport, troposphere.

Abstract

[1] We use a global chemical transport model (MOZART-2) to estimate the effects of surface emissions of methanol on tropospheric oxidants. The importance of methanol in tropospheric chemistry is two fold. First, methanol has a relatively large surface emission with an estimated global emission of 70 to 350 Tg methanol/year. The estimated methanol flux is comparable to other major hydrocarbon surface emissions such as isoprene and total monoterpenes, but the chemical lifetime of methanol is several days (in the boundary layer) to a few weeks (in the upper troposphere), which is much longer than the chemical lifetime of isoprene or monoterpenes (For example, the chemical lifetime of isoprene is about 2 hours). With a surface emission of 104 to 312 Tg methanol/year (encompasses estimated uncertainty in methanol emissions), the calculation shows that on average, the inclusion of methanol emission produces approximately 1-2% increase in O₃, 1-3% decrease in OH, 3-5% increase in HO₂, and 3-9% increase in CH₂O globally. The maximum perturbation to the oxidants occurs in the tropical upper troposphere. However, the uncertainty associated with current methanol emission estimates produces significantly different model predictions of tropospheric oxidant distributions.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0094-8276`
A02	`01`			`@0 GPRLAJ`
A03		`1`		`@0 Geophys. res. lett.`
A05				`@2 30`
A06				`@2 17`
A08	`01`	`1`	`ENG`	`@1 Biogenic methanol and its impacts on tropospheric oxidants`
A11	`01`	`1`		`@1 XUEXI TIE`
A11	`02`	`1`		`@1 GUENTHER (Alex)`
A11	`03`	`1`		`@1 HOLLAND (Elisabeth)`
A14	`01`			`@1 National Center for Atmospheric Research (NCAR) @2 Boulder, Colorado @3 USA @Z 1 aut. @Z 2 aut. @Z 3 aut.`
A20				`@2 ASC3.1-ASC3.4`
A21				`@1 2003`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 16687 @5 354000113319650030`
A44				`@0 0000 @1 © 2004 INIST-CNRS. All rights reserved.`
A45				`@0 13 ref.`
A47	`01`	`1`		`@0 04-0267154`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Geophysical research letters`
A66	`01`			`@0 USA`
C01	`01`		`ENG`	@0 [1] We use a global chemical transport model (MOZART-2) to estimate the effects of surface emissions of methanol on tropospheric oxidants. The importance of methanol in tropospheric chemistry is two fold. First, methanol has a relatively large surface emission with an estimated global emission of 70 to 350 Tg methanol/year. The estimated methanol flux is comparable to other major hydrocarbon surface emissions such as isoprene and total monoterpenes, but the chemical lifetime of methanol is several days (in the boundary layer) to a few weeks (in the upper troposphere), which is much longer than the chemical lifetime of isoprene or monoterpenes (For example, the chemical lifetime of isoprene is about 2 hours). With a surface emission of 104 to 312 Tg methanol/year (encompasses estimated uncertainty in methanol emissions), the calculation shows that on average, the inclusion of methanol emission produces approximately 1-2% increase in O₃, 1-3% decrease in OH, 3-5% increase in HO₂, and 3-9% increase in CH₂O globally. The maximum perturbation to the oxidants occurs in the tropical upper troposphere. However, the uncertainty associated with current methanol emission estimates produces significantly different model predictions of tropospheric oxidant distributions.
C02	`01`	`2`		`@0 220`
C02	`02`	`3`		`@0 001E`
C03	`01`	`X`	`FRE`	`@0 Méthanol @2 NK @2 FX @5 26`
C03	`01`	`X`	`ENG`	`@0 Methanol @2 NK @2 FX @5 26`
C03	`01`	`X`	`SPA`	`@0 Metanol @2 NK @2 FX @5 26`
C03	`02`	`2`	`FRE`	`@0 Troposphère @5 27`
C03	`02`	`2`	`ENG`	`@0 troposphere @5 27`
C03	`03`	`X`	`FRE`	`@0 Oxydant @5 28`
C03	`03`	`X`	`ENG`	`@0 Oxidant @5 28`
C03	`03`	`X`	`SPA`	`@0 Oxidante @5 28`
C03	`04`	`2`	`FRE`	`@0 Monde @5 29`
C03	`04`	`2`	`ENG`	`@0 global @5 29`
C03	`04`	`2`	`SPA`	`@0 Mundo @5 29`
C03	`05`	`2`	`FRE`	`@0 Transport @5 30`
C03	`05`	`2`	`ENG`	`@0 transport @5 30`
C03	`05`	`2`	`SPA`	`@0 Transporte @5 30`
C03	`06`	`X`	`FRE`	`@0 Modèle prévision @5 31`
C03	`06`	`X`	`ENG`	`@0 Forecast model @5 31`
C03	`06`	`X`	`SPA`	`@0 Modelo previsión @5 31`
C03	`07`	`2`	`FRE`	`@0 Pli @5 32`
C03	`07`	`2`	`ENG`	`@0 folds @5 32`
C03	`07`	`2`	`SPA`	`@0 Pliegue @5 32`
C03	`08`	`2`	`FRE`	`@0 Hydrocarbure @5 33`
C03	`08`	`2`	`ENG`	`@0 hydrocarbons @5 33`
C03	`08`	`2`	`SPA`	`@0 Hidrocarburo @5 33`
C03	`09`	`X`	`FRE`	`@0 Isoprène @2 NK @5 34`
C03	`09`	`X`	`ENG`	`@0 Isoprene @2 NK @5 34`
C03	`09`	`X`	`SPA`	`@0 Isopreno @2 NK @5 34`
C03	`10`	`X`	`FRE`	`@0 Monoterpène @5 35`
C03	`10`	`X`	`ENG`	`@0 Monoterpene @5 35`
C03	`10`	`X`	`SPA`	`@0 Monoterpeno @5 35`
C03	`11`	`X`	`FRE`	`@0 Durée vie @5 36`
C03	`11`	`X`	`ENG`	`@0 Lifetime @5 36`
C03	`11`	`X`	`SPA`	`@0 Tiempo vida @5 36`
C03	`12`	`2`	`FRE`	`@0 Couche limite @5 37`
C03	`12`	`2`	`ENG`	`@0 boundary layer @5 37`
C03	`12`	`2`	`SPA`	`@0 Capa límite @5 37`
C03	`13`	`X`	`FRE`	`@0 Incertitude @5 38`
C03	`13`	`X`	`ENG`	`@0 Uncertainty @5 38`
C03	`13`	`X`	`SPA`	`@0 Incertidumbre @5 38`
C03	`14`	`2`	`FRE`	`@0 Inclusion @5 39`
C03	`14`	`2`	`ENG`	`@0 inclusions @5 39`
C03	`14`	`2`	`SPA`	`@0 Inclusión @5 39`
C03	`15`	`2`	`FRE`	`@0 Courant @5 40`
C03	`15`	`2`	`ENG`	`@0 currents @5 40`
C03	`16`	`2`	`FRE`	`@0 Prévision @5 41`
C03	`16`	`2`	`ENG`	`@0 prediction @5 41`
C03	`16`	`2`	`SPA`	`@0 Previsión @5 41`
N21				`@1 166`
N44	`01`			`@1 OTO`
N82				`@1 OTO`

Format Inist (serveur)

NO :	PASCAL 04-0267154 INIST
ET :	Biogenic methanol and its impacts on tropospheric oxidants
AU :	XUEXI TIE; GUENTHER (Alex); HOLLAND (Elisabeth)
AF :	National Center for Atmospheric Research (NCAR)/Boulder, Colorado/Etats-Unis (1 aut., 2 aut., 3 aut.)
DT :	Publication en série; Niveau analytique
SO :	Geophysical research letters; ISSN 0094-8276; Coden GPRLAJ; Etats-Unis; Da. 2003; Vol. 30; No. 17; ASC3.1-ASC3.4; Bibl. 13 ref.
LA :	Anglais
EA :	[1] We use a global chemical transport model (MOZART-2) to estimate the effects of surface emissions of methanol on tropospheric oxidants. The importance of methanol in tropospheric chemistry is two fold. First, methanol has a relatively large surface emission with an estimated global emission of 70 to 350 Tg methanol/year. The estimated methanol flux is comparable to other major hydrocarbon surface emissions such as isoprene and total monoterpenes, but the chemical lifetime of methanol is several days (in the boundary layer) to a few weeks (in the upper troposphere), which is much longer than the chemical lifetime of isoprene or monoterpenes (For example, the chemical lifetime of isoprene is about 2 hours). With a surface emission of 104 to 312 Tg methanol/year (encompasses estimated uncertainty in methanol emissions), the calculation shows that on average, the inclusion of methanol emission produces approximately 1-2% increase in O₃, 1-3% decrease in OH, 3-5% increase in HO₂, and 3-9% increase in CH₂O globally. The maximum perturbation to the oxidants occurs in the tropical upper troposphere. However, the uncertainty associated with current methanol emission estimates produces significantly different model predictions of tropospheric oxidant distributions.
CC :	220; 001E
FD :	Méthanol; Troposphère; Oxydant; Monde; Transport; Modèle prévision; Pli; Hydrocarbure; Isoprène; Monoterpène; Durée vie; Couche limite; Incertitude; Inclusion; Courant; Prévision
ED :	Methanol; troposphere; Oxidant; global; transport; Forecast model; folds; hydrocarbons; Isoprene; Monoterpene; Lifetime; boundary layer; Uncertainty; inclusions; currents; prediction
SD :	Metanol; Oxidante; Mundo; Transporte; Modelo previsión; Pliegue; Hidrocarburo; Isopreno; Monoterpeno; Tiempo vida; Capa límite; Incertidumbre; Inclusión; Previsión
LO :	INIST-16687.354000113319650030
ID :	04-0267154

Links to Exploration step

Pascal:04-0267154

Le document en format XML

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<term>Monoterpene</term>
<term>Oxidant</term>
<term>Uncertainty</term>
<term>boundary layer</term>
<term>currents</term>
<term>folds</term>
<term>global</term>
<term>hydrocarbons</term>
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<term>Monoterpène</term>
<term>Durée vie</term>
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<front><div type="abstract" xml:lang="en">[1] We use a global chemical transport model (MOZART-2) to estimate the effects of surface emissions of methanol on tropospheric oxidants. The importance of methanol in tropospheric chemistry is two fold. First, methanol has a relatively large surface emission with an estimated global emission of 70 to 350 Tg methanol/year. The estimated methanol flux is comparable to other major hydrocarbon surface emissions such as isoprene and total monoterpenes, but the chemical lifetime of methanol is several days (in the boundary layer) to a few weeks (in the upper troposphere), which is much longer than the chemical lifetime of isoprene or monoterpenes (For example, the chemical lifetime of isoprene is about 2 hours). With a surface emission of 104 to 312 Tg methanol/year (encompasses estimated uncertainty in methanol emissions), the calculation shows that on average, the inclusion of methanol emission produces approximately 1-2% increase in O<sub>3</sub>
, 1-3% decrease in OH, 3-5% increase in HO<sub>2</sub>
, and 3-9% increase in CH<sub>2</sub>
O globally. The maximum perturbation to the oxidants occurs in the tropical upper troposphere. However, the uncertainty associated with current methanol emission estimates produces significantly different model predictions of tropospheric oxidant distributions.</div>
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<fA14 i1="01"><s1>National Center for Atmospheric Research (NCAR)</s1>
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<fC01 i1="01" l="ENG"><s0>[1] We use a global chemical transport model (MOZART-2) to estimate the effects of surface emissions of methanol on tropospheric oxidants. The importance of methanol in tropospheric chemistry is two fold. First, methanol has a relatively large surface emission with an estimated global emission of 70 to 350 Tg methanol/year. The estimated methanol flux is comparable to other major hydrocarbon surface emissions such as isoprene and total monoterpenes, but the chemical lifetime of methanol is several days (in the boundary layer) to a few weeks (in the upper troposphere), which is much longer than the chemical lifetime of isoprene or monoterpenes (For example, the chemical lifetime of isoprene is about 2 hours). With a surface emission of 104 to 312 Tg methanol/year (encompasses estimated uncertainty in methanol emissions), the calculation shows that on average, the inclusion of methanol emission produces approximately 1-2% increase in O<sub>3</sub>
, 1-3% decrease in OH, 3-5% increase in HO<sub>2</sub>
, and 3-9% increase in CH<sub>2</sub>
O globally. The maximum perturbation to the oxidants occurs in the tropical upper troposphere. However, the uncertainty associated with current methanol emission estimates produces significantly different model predictions of tropospheric oxidant distributions.</s0>
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<fC02 i1="02" i2="3"><s0>001E</s0>
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<s5>27</s5>
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<fC03 i1="02" i2="2" l="ENG"><s0>troposphere</s0>
<s5>27</s5>
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<fC03 i1="03" i2="X" l="FRE"><s0>Oxydant</s0>
<s5>28</s5>
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<s5>28</s5>
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<s5>28</s5>
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<fC03 i1="04" i2="2" l="FRE"><s0>Monde</s0>
<s5>29</s5>
</fC03>
<fC03 i1="04" i2="2" l="ENG"><s0>global</s0>
<s5>29</s5>
</fC03>
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<s5>29</s5>
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<s5>30</s5>
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<s5>33</s5>
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<s5>34</s5>
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<s2>NK</s2>
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<s5>35</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Durée vie</s0>
<s5>36</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Lifetime</s0>
<s5>36</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Tiempo vida</s0>
<s5>36</s5>
</fC03>
<fC03 i1="12" i2="2" l="FRE"><s0>Couche limite</s0>
<s5>37</s5>
</fC03>
<fC03 i1="12" i2="2" l="ENG"><s0>boundary layer</s0>
<s5>37</s5>
</fC03>
<fC03 i1="12" i2="2" l="SPA"><s0>Capa límite</s0>
<s5>37</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE"><s0>Incertitude</s0>
<s5>38</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG"><s0>Uncertainty</s0>
<s5>38</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA"><s0>Incertidumbre</s0>
<s5>38</s5>
</fC03>
<fC03 i1="14" i2="2" l="FRE"><s0>Inclusion</s0>
<s5>39</s5>
</fC03>
<fC03 i1="14" i2="2" l="ENG"><s0>inclusions</s0>
<s5>39</s5>
</fC03>
<fC03 i1="14" i2="2" l="SPA"><s0>Inclusión</s0>
<s5>39</s5>
</fC03>
<fC03 i1="15" i2="2" l="FRE"><s0>Courant</s0>
<s5>40</s5>
</fC03>
<fC03 i1="15" i2="2" l="ENG"><s0>currents</s0>
<s5>40</s5>
</fC03>
<fC03 i1="16" i2="2" l="FRE"><s0>Prévision</s0>
<s5>41</s5>
</fC03>
<fC03 i1="16" i2="2" l="ENG"><s0>prediction</s0>
<s5>41</s5>
</fC03>
<fC03 i1="16" i2="2" l="SPA"><s0>Previsión</s0>
<s5>41</s5>
</fC03>
<fN21><s1>166</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
</standard>
<server><NO>PASCAL 04-0267154 INIST</NO>
<ET>Biogenic methanol and its impacts on tropospheric oxidants</ET>
<AU>XUEXI TIE; GUENTHER (Alex); HOLLAND (Elisabeth)</AU>
<AF>National Center for Atmospheric Research (NCAR)/Boulder, Colorado/Etats-Unis (1 aut., 2 aut., 3 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Geophysical research letters; ISSN 0094-8276; Coden GPRLAJ; Etats-Unis; Da. 2003; Vol. 30; No. 17; ASC3.1-ASC3.4; Bibl. 13 ref.</SO>
<LA>Anglais</LA>
<EA>[1] We use a global chemical transport model (MOZART-2) to estimate the effects of surface emissions of methanol on tropospheric oxidants. The importance of methanol in tropospheric chemistry is two fold. First, methanol has a relatively large surface emission with an estimated global emission of 70 to 350 Tg methanol/year. The estimated methanol flux is comparable to other major hydrocarbon surface emissions such as isoprene and total monoterpenes, but the chemical lifetime of methanol is several days (in the boundary layer) to a few weeks (in the upper troposphere), which is much longer than the chemical lifetime of isoprene or monoterpenes (For example, the chemical lifetime of isoprene is about 2 hours). With a surface emission of 104 to 312 Tg methanol/year (encompasses estimated uncertainty in methanol emissions), the calculation shows that on average, the inclusion of methanol emission produces approximately 1-2% increase in O<sub>3</sub>
, 1-3% decrease in OH, 3-5% increase in HO<sub>2</sub>
, and 3-9% increase in CH<sub>2</sub>
O globally. The maximum perturbation to the oxidants occurs in the tropical upper troposphere. However, the uncertainty associated with current methanol emission estimates produces significantly different model predictions of tropospheric oxidant distributions.</EA>
<CC>220; 001E</CC>
<FD>Méthanol; Troposphère; Oxydant; Monde; Transport; Modèle prévision; Pli; Hydrocarbure; Isoprène; Monoterpène; Durée vie; Couche limite; Incertitude; Inclusion; Courant; Prévision</FD>
<ED>Methanol; troposphere; Oxidant; global; transport; Forecast model; folds; hydrocarbons; Isoprene; Monoterpene; Lifetime; boundary layer; Uncertainty; inclusions; currents; prediction</ED>
<SD>Metanol; Oxidante; Mundo; Transporte; Modelo previsión; Pliegue; Hidrocarburo; Isopreno; Monoterpeno; Tiempo vida; Capa límite; Incertidumbre; Inclusión; Previsión</SD>
<LO>INIST-16687.354000113319650030</LO>
<ID>04-0267154</ID>
</server>
</inist>
</record>

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Biogenic methanol and its impacts on tropospheric oxidants

Biogenic methanol and its impacts on tropospheric oxidants

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