Show simple item record

Biomass burning emission estimates inferred from satellite column measurements of HCHO: Sensitivity to co-emitted aerosol and injection height

dc.contributor.authorGonzi, S.
dc.contributor.authorPalmer, P.I.
dc.contributor.authorBarkley, M.P.
dc.contributor.authorDe Smedt, I.
dc.contributor.authorVan Roozendael, M.
dc.date2011
dc.date.accessioned2016-03-29T12:43:51Z
dc.date.available2016-03-29T12:43:51Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/3079
dc.descriptionWe infer monthly regional biomass burning emissions of formaldehyde (HCHO) during 2006 from space-borne column measurements of HCHO from the SCIAMACHY instrument over Canada, boreal Asia, South America, southern Africa, and Indonesia. We remove the influence of biogenic volatile organic compounds using an offline chemical mechanism. We quantify the sensitivity of our emission estimates to aerosol single scattering albedo, ω, indicative of fresh (ω = 0.8) and aged (ω > 0.9) aerosol, and the relative vertical distribution of the aerosol and HCHO, both which compromise the interpretation of space-based HCHO columns. For our control calculation we assume freshly-emitted gases and aerosols that are mainly confined to the boundary layer. Associated posterior emissions are generally lower than the prior emissions except over Canada and boreal Asia during northern hemisphere summer months. Accounting for faster vertical mixing results in posterior emissions 20%–100% higher than the corresponding control calculation, and consequently more consistent with the prior. Assuming an aged aerosol generally results in a 20% decrease in posterior emissions relative to prior values. Based on the range of posterior estimates from our sensitivity analyses, not accounting for uncertainties associated with the underlying gas-phase and heterogeneous chemistry, we estimate HCHO emission uncertainties are typically 20%–30% but can be up to 300% in extreme cases.
dc.languageeng
dc.titleBiomass burning emission estimates inferred from satellite column measurements of HCHO: Sensitivity to co-emitted aerosol and injection height
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeAerosol single scattering albedo
dc.subject.freeBiogenic volatile organic compounds
dc.subject.freeBiomass burning emissions
dc.subject.freeChemical mechanism
dc.subject.freeColumn measurements
dc.subject.freeEmission uncertainties
dc.subject.freeGasphase
dc.subject.freeHeterogeneous chemistry
dc.subject.freeIndonesia
dc.subject.freeNorthern Hemispheres
dc.subject.freeOffline
dc.subject.freeRegional biomass
dc.subject.freeSouth America
dc.subject.freeSpace-based
dc.subject.freeSpace-borne
dc.subject.freeSummer months
dc.subject.freeVertical distributions
dc.subject.freeVertical mixing
dc.subject.freeAssociated gas
dc.subject.freeAtmospheric aerosols
dc.subject.freeAtmospheric composition
dc.subject.freeChemical analysis
dc.subject.freeChemical compounds
dc.subject.freeEstimation
dc.subject.freeSensitivity analysis
dc.subject.freeVolatile organic compounds
dc.subject.freeUncertainty analysis
dc.subject.freeaerosol
dc.subject.freealbedo
dc.subject.freeatmospheric pollution
dc.subject.freebiomass burning
dc.subject.freeboundary layer
dc.subject.freeemission
dc.subject.freeestimation method
dc.subject.freeformaldehyde
dc.subject.freeheight
dc.subject.freeheterogeneity
dc.subject.freemathematical analysis
dc.subject.freemeasurement method
dc.subject.freesatellite imagery
dc.subject.freesensitivity analysis
dc.subject.freeuncertainty analysis
dc.subject.freevertical mixing
dc.subject.freevolatile organic compound
dc.subject.freeAsia
dc.subject.freeCanada
dc.subject.freeSouth America
dc.subject.freeSouthern Africa
dc.source.titleGeophysical Research Letters
dc.source.volume38
dc.source.issue14
dc.source.pageL14807
Orfeo.peerreviewedYes
dc.identifier.doi10.1029/2011GL047890
dc.identifier.scopus2-s2.0-79960824668


Files in this item

Thumbnail
Name:
Gonzi(2011).pdf
Size:
163.1Kb
Format:
PDF
View/Open

This item appears in the following Collection(s)

Show simple item record