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dc.contributor.authorSindelarova, K.
dc.contributor.authorGranier, C.
dc.contributor.authorBouarar, I.
dc.contributor.authorGuenther, A.
dc.contributor.authorTilmes, S.
dc.contributor.authorStavrakou, T.
dc.contributor.authorMüller, J.-F.
dc.contributor.authorKuhn, U.
dc.contributor.authorStefani, P.
dc.contributor.authorKnorr, W.
dc.date2014
dc.date.accessioned2016-03-25T09:42:09Z
dc.date.available2016-03-25T09:42:09Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/2813
dc.descriptionThe Model of Emissions of Gases and Aerosols from Nature (MEGANv2.1) together with the Modern-Era Retrospective Analysis for Research and Applications (MERRA) meteorological fields were used to create a global emission data set of biogenic volatile organic compounds (BVOC) available on a monthly basis for the time period of 1980-2010. This data set, developed under the Monitoring Atmospheric Composition and Climate project (MACC), is called MEGAN-MACC. The model estimated mean annual total BVOC emission of 760 Tg (C) yrg-1consisting of isoprene (70%), monoterpenes (11%), methanol (6%), acetone (3%), sesquiterpenes (2.5%) and other BVOC species each contributing less than 2%. Several sensitivity model runs were performed to study the impact of different model input and model settings on isoprene estimates and resulted in differences of up to ±17% of the reference isoprene total. A greater impact was observed for a sensitivity run applying parameterization of soil moisture deficit that led to a 50% reduction of isoprene emissions on a global scale, most significantly in specific regions of Africa, South America and Australia. MEGAN-MACC estimates are comparable to results of previous studies. More detailed comparison with other isoprene inventories indicated significant spatial and temporal differences between the data sets especially for Australia, Southeast Asia and South America. MEGAN-MACC estimates of isoprene, α-pinene and group of monoterpenes showed a reasonable agreement with surface flux measurements at sites located in tropical forests in the Amazon and Malaysia. The model was able to capture the seasonal variation of isoprene emissions in the Amazon forest.
dc.languageeng
dc.titleGlobal data set of biogenic VOC emissions calculated by the MEGAN model over the last 30 years
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeaerosol composition
dc.subject.freeaerosol formation
dc.subject.freeconcentration (composition)
dc.subject.freeisoprene
dc.subject.freemethanol
dc.subject.freemonoterpene
dc.subject.freeparameterization
dc.subject.freeseasonal variation
dc.subject.freevolatile organic compound
dc.subject.freeAfrica
dc.subject.freeAmazonia
dc.subject.freeAustralia
dc.subject.freeMalaysia
dc.subject.freeSouth America
dc.source.titleAtmospheric Chemistry and Physics
dc.source.volume14
dc.source.issue17
dc.source.page9317-9341
Orfeo.peerreviewedYes
dc.identifier.doi10.5194/acp-14-9317-2014
dc.identifier.scopus2-s2.0-84900437063


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