{"refrec":{"BRefID":337490,"RR":"<b>Verreyken, B.; Amelynck, C.; Brioude, J.; Müller, J.-F.; Schoon, N.; Kumps, N.; Colomb, A.; Metzger, J.-M.; Lee, C.F.; Koenig, T.K.; Volkamer, R.; Stavrakou, T.</b> (2020). Characterisation of African biomass burning plumes and impacts on the atmospheric composition over the south-west Indian Ocean. <i>Atmos. Chem. Phys. 20(23)</i>: 14821-14845. <a href=\"https://hdl.handle.net/10.5194/acp-20-14821-2020\" target=\"_blank\">https://hdl.handle.net/10.5194/acp-20-14821-2020</a>","BEntID":334113,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Atmos. Chem. Phys. 20(23)</i>: 14821-14845. <a href=\"https://hdl.handle.net/10.5194/acp-20-14821-2020\" target=\"_blank\">https://hdl.handle.net/10.5194/acp-20-14821-2020</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Verreyken, B.; Amelynck, C.; Brioude, J.; Müller, J.-F.; Schoon, N.; Kumps, N.; Colomb, A.; Metzger, J.-M.; Lee, C.F.; Koenig, T.K.; Volkamer, R.; Stavrakou, T.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Verreyken, B. <i>et al.</i>","Englishabstract":"We present an investigation of biomass burning (BB) plumes originating from Africa and Madagascar based on measurements of a suite of volatile organic compounds (VOCs), carbon monoxide (CO), ozone (<span class=\"inline-formula\">O<sub>3</sub></span>) and nitrogen dioxide (<span class=\"inline-formula\">NO<sub>2</sub></span>) obtained during the dry season of 2018 and 2019 at the high-altitude Maïdo observatory (21.1<span class=\"inline-formula\"><sup>∘</sup></span> S, 55.4<span class=\"inline-formula\"><sup>∘</sup></span> E, 2160 m.a.s.l.), located on the remote island of La Réunion in the south-west Indian Ocean (SWIO). Biomass burning plume episodes were identified from increased acetonitrile (<span class=\"inline-formula\">CH<sub>3</sub>CN</span>) mixingratios. Enhancement ratios (EnRs) – relative to CO – were calculated from in situ measurements for <span class=\"inline-formula\">CH<sub>3</sub>CN</span>, acetone (<span class=\"inline-formula\">CH<sub>3</sub>COCH<sub>3</sub></span>), formic acid (HCOOH), acetic acid (<span class=\"inline-formula\">CH<sub>3</sub>COOH</span>), benzene (<span class=\"inline-formula\">C<sub>6</sub>H<sub>6</sub></span>), methanol (<span class=\"inline-formula\">CH<sub>3</sub>OH</span>) and <span class=\"inline-formula\">O<sub>3</sub></span>. We compared the EnRs to emission ratios (ERs) – relative to CO – reported in the literature in order to estimate loss or production of these compounds during transport. For <span class=\"inline-formula\">CH<sub>3</sub>CN</span> and <span class=\"inline-formula\">CH<sub>3</sub>COOH</span>, the calculated EnRs are similar to the ERs. For <span class=\"inline-formula\">C<sub>6</sub>H<sub>6</sub></span> and <span class=\"inline-formula\">CH<sub>3</sub>OH</span>, the EnR is lower than the ER, indicating a net sink of these compounds which was found to be in line with the expected atmospheric lifetime. For <span class=\"inline-formula\">CH<sub>3</sub>COCH<sub>3</sub></span> and HCOOH, the calculated EnRs are larger than the ERs. The discrepancy reaches an order of magnitude for HCOOH (18–34 <span class=\"inline-formula\">pptv ppbv<sup>−1</sup></span> compared to 1.8–4.5 <span class=\"inline-formula\">pptv ppbv<sup>−1</sup></span>). This points to significant secondary production of HCOOH during transport. The Copernicus Atmospheric Monitoring Service (CAMS) global model simulations reproduce the temporal variation of CO mixing ratios well at the observatory but underestimate <span class=\"inline-formula\">O<sub>3</sub></span> and <span class=\"inline-formula\">NO<sub>2</sub></span> mixing ratios in the plumes by on average 16 <span class=\"inline-formula\">ppbv</span> and 60 <span class=\"inline-formula\">pptv</span> respectively. This discrepancy between modelled and measured <span class=\"inline-formula\">O<sub>3</sub></span> mixing ratios was attributed to (i) large uncertainties in VOC and NO<span class=\"inline-formula\"><sub><i>x</i></sub></span> (<span class=\"inline-formula\">NO+NO<sub>2</sub></span>) emissions due to BB in CAMS and (ii) misrepresentation of NO<span class=\"inline-formula\"><sub><i>x</i></sub></span> recycling in the model during transport. Finally, transport of pyrogenically emitted CO is calculated with FLEXPART in order to (i) determine the mean plume age during the intrusions at the observatory and (ii) estimate the impact of BB on the pristine marine boundary layer (MBL). By multiplying the excess CO in the MBL with inferred EnRs at the observatory, we calculated the expected impact of BB on <span class=\"inline-formula\">CH<sub>3</sub>CN</span>, <span class=\"inline-formula\">CH<sub>3</sub>COCH<sub>3</sub></span>, <span class=\"inline-formula\">CH<sub>3</sub>OH</span> and <span class=\"inline-formula\">C<sub>6</sub>H<sub>6</sub></span> concentrations in the MBL. These excesses constitute increases of  <span class=\"inline-formula\">∼20</span> %–150 % compared to background measurements in the SWIO MBL reported in the literature.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Characterisation of African biomass burning plumes and impacts on the atmospheric composition over the south-west Indian Ocean","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-08 01:31:22.909814","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2020,"MonPub":null,"DateUpdate":"2021-05-19","DateCreate":"2021-05-17","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000595075400008","VABBcode":null,"OpenAcc":1,"Handle":"10.5194/acp-20-14821-2020"},"refs":null,"anarec":{"AnaID":337490,"PubliDate":2020,"Pagination":"14821-14845","XtraPublOfAnaID":null,"ISBN":null,"Volume":"20","Issue":"23","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":114747,"SerRR":"Atmospheric Chemistry and Physics. Copernicus Publ: Göttingen.  ISSN 1680-7316; e-ISSN 1680-7324","StandardTitleSer":"Atmospheric Chemistry and Physics","ISSN":"1680-7316","AbbrevSer":"Atmos. Chem. Phys.","StandardTitleMon":null,"StartPage":14821,"Pages":25,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Verreyken","Firstname":"Bert","Initials":"B.","Affiliation":"Royal Belgian Institute for Space Aeronomy","Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447518,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"BIRA","InsFSN":"Belgisch Instituut voor Ruimte-Aeronomie","ORCID":"0000-0002-5297-8524","PersID":39999,"InsID":408},{"AutName":"Amelynck","Firstname":"Crist","Initials":"C.","Affiliation":"Royal Belgian Institute for Space Aeronomy","Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447521,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"BIRA","InsFSN":"Belgisch Instituut voor Ruimte-Aeronomie","ORCID":null,"PersID":40000,"InsID":408},{"AutName":"Brioude","Firstname":"Jérôme","Initials":"J.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447523,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Müller","Firstname":"Jean-François","Initials":"J.-F.","Affiliation":"Royal Belgian Institute for Space Aeronomy","Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447524,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"BIRA","InsFSN":"Belgisch Instituut voor Ruimte-Aeronomie","ORCID":null,"PersID":40001,"InsID":408},{"AutName":"Schoon","Firstname":"Niels","Initials":"N.","Affiliation":"Royal Belgian Institute for Space Aeronomy","Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447525,"OrderNr":5,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"BIRA","InsFSN":"Belgisch Instituut voor Ruimte-Aeronomie","ORCID":null,"PersID":40002,"InsID":408},{"AutName":"Kumps","Firstname":"Nicolas","Initials":"N.","Affiliation":"Royal Belgian Institute for Space Aeronomy","Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447526,"OrderNr":6,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"BIRA","InsFSN":"Belgisch Instituut voor Ruimte-Aeronomie","ORCID":null,"PersID":40003,"InsID":408},{"AutName":"Colomb","Firstname":"Aurélie","Initials":"A.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447527,"OrderNr":7,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Metzger","Firstname":"Jean-Marc","Initials":"J.-M.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447528,"OrderNr":8,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Lee","Firstname":"Christopher","Initials":"C.F.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447529,"OrderNr":9,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Koenig","Firstname":"Theodore","Initials":"T.K.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447531,"OrderNr":10,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Volkamer","Firstname":"Rainer","Initials":"R.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447533,"OrderNr":11,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Stavrakou","Firstname":"Trissevgeni","Initials":"T.","Affiliation":"Royal Belgian Institute for Space Aeronomy","Discriminator":null,"CorporateFlag":0,"BEntID":334113,"AutID":447535,"OrderNr":12,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"BIRA","InsFSN":"Belgisch Instituut voor Ruimte-Aeronomie","ORCID":null,"PersID":40004,"InsID":408}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":361190,"LibID":36,"BRefID":337490,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"361190","RFID":null,"PaidValue":null,"Medium":"Server","Description":"VLIZ Open Access","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Open access","URL":null,"ClassifID":53,"Classification":"Open access","ReqLink":null,"ClassifTypID":1,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":null,"InternalReq":0,"LoggedInReq":0,"Disclaimer":null,"DutchDisclaimer":null,"FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Copernicus Publ","City":"Göttingen"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":[{"Collection":"OMA - Open Marien Archief","ShortName":"OMA"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"222":{"SpName":"BMB - Belgische Mariene Bibliografie","SpColID":222,"ParSpColID":null,"TopParID":null,"ShortName":"BMB","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"BMB"},"221":{"SpName":"OMA - Open Marien Archief","SpColID":221,"ParSpColID":null,"TopParID":null,"ShortName":"OMA","URLLocation":null,"LibID":36,"OpenRepoFlag":1,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OMA"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":334113,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":334113,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://hdl.handle.net/10.5194/acp-20-14821-2020","externalID":"10.5194/acp-20-14821-2020","URLTypeCode":"Handle","URLID":93154,"URLTypID":32,"URLType":"Handle","URLPrefix":"https://hdl.handle.net/"}],"thesterms":null,"taxterms":null,"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":null,"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Bouchti, Zohra, Z.","newSesDate":{"date":"2021-05-17 16:42:41.567000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2021-05-19 06:56:58.417000","timezone_type":3,"timezone":"Europe/Brussels"}}}