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Past and future changes in global tropospheric ozone: Impact on radiative forcing

dc.contributor.authorBrasseur, G.P.
dc.contributor.authorKiehl, J.T.
dc.contributor.authorMüller, J.-F.
dc.contributor.authorSchneider, T.
dc.contributor.authorGranier, C.
dc.contributor.authorTie, X.
dc.contributor.authorHauglustaine, D.
dc.date1998
dc.date.accessioned2017-05-19T10:56:25Z
dc.date.available2017-05-19T10:56:25Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/5399
dc.descriptionCalculations by a global three-dimensional chemical transport model of the atmosphere suggest that increased surface emissions of chemical compounds caused by industrial activities at mid-latitudes in the northern hemisphere and by biomass burning in the tropics since the middle of the 19th century have produced an increase in the abundance of tropospheric ozone along with a reduction in the oxidizing capacity of the atmosphere (globally averaged OH concentration reduced by 17% and methane lifetime enhanced by 1.5 years). These perturbations in tropospheric ozone result in a change in annually averaged radiative forcing of 0.37 W m-2 (0.62 W m-2 in the northern hemisphere during the summer months). Future changes (1990-2050) in tropospheric ozone associated with population increase and economic development (primarily in developing countries) are expected to be largest in the tropics, specifically in South and Southeast Asia. Further changes in the oxidizing capacity of the atmosphere could be small if the abundance of tropospheric water vapor increases as a result of anticipated climate change.
dc.languageeng
dc.titlePast and future changes in global tropospheric ozone: Impact on radiative forcing
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeAtmospheric chemistry
dc.subject.freeAtmospheric composition
dc.subject.freeAtmospheric movements
dc.subject.freeBiomass
dc.subject.freeComputational methods
dc.subject.freeMass transfer
dc.subject.freeMathematical models
dc.subject.freeOxidation
dc.subject.freeTroposphere
dc.subject.freeAtmospheric radiation
dc.subject.freeChemical compounds
dc.subject.freeClimate change
dc.subject.freeDeveloping countries
dc.subject.freeIndustrial emissions
dc.subject.freeOzone
dc.subject.freeTropics
dc.subject.freeChemical transport model
dc.subject.freeOzone
dc.subject.freeTroposphere
dc.subject.freeEconomic development
dc.subject.freeIndustrial activities
dc.subject.freeNorthern Hemispheres
dc.subject.freeOxidizing capacity
dc.subject.freeRadiative forcings
dc.subject.freeSurface emissions
dc.subject.freeThree dimensional chemicals
dc.subject.freeTropospheric ozone
dc.source.titleGeophysical Research Letters
dc.source.volume25
dc.source.issue20
dc.source.page3807-3810
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/1998GL900013
dc.identifier.scopus2-s2.0-0032179904


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