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Observation of nighttime new particle formation over the French Landes forest

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
hal.structure.identifierUniversité de Bordeaux [UB]
dc.contributor.authorKAMMER, Julien
hal.structure.identifierUniversité de Bordeaux [UB]
dc.contributor.authorPERRAUDIN, E.
hal.structure.identifierUniversité de Bordeaux [UB]
dc.contributor.authorFLAUD, P.-M.
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorLAMAUD, Eric
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorBONNEFOND, Jean-Marc
hal.structure.identifierUniversité de Bordeaux [UB]
dc.contributor.authorVILLENAVE, E.
dc.date.accessioned2024-04-08T12:04:10Z
dc.date.available2024-04-08T12:04:10Z
dc.date.issued2018
dc.identifier.issn0048-9697
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196296
dc.description.abstractEnImproving the understanding of processes related to atmospheric particle sources is essential to better assess future climate. Especially, how biogenic volatile organic compounds (BVOCs) are involved in new particle formation (NPF) is still unclear, highlighting the need for field studies in sites that have not yet been explored. Weakly anthropised, mostly composed of maritime pines (known as strong monoterpene emitters), vast and under the influence of sea spray inputs, the Landes forest (located in the southwestern part of France) is a suitable ecosystem to explore these questions. The aim of the present work was to investigate for the first time NPF in the Landes forest, and to identify the conditions for NPF. During a field campaign conducted in July 2015, clear NPF was observed during nighttime, at a high frequency rate (37.5%), whereas only two daytime episodes were observed. Growth rates during NPF events were in the range 9.0-15.7 nm h(-1), and nucleation rates (J(10)) in the range 0.8-8 particles cm(3) s(-1), typically in the range of reported values from rural sites. Nocturnal NPF started at sunset, lagging the reductions of temperature and ozone concentration as well as the increase of relative humidity, atmospheric stability and monoterpene concentration. We established that NPF occurred during more stratified atmosphere episodes, reflecting that NPF is more influenced by local processes at the Landes forest site (Bilos). Concentration of the sum of monoterpenes, here mainly alpha- and beta-pinene, was observed to be maximal during NPF episodes. On the contrary, ozone concentration was lower, which may indicate a larger consumption during nights where NPF episodes occur. Results strongly suggest the contribution of BVOC oxidation to nocturnal NPF, in both nucleation and the growth stages.
dc.language.isoen
dc.publisherElsevier
dc.subject.enaerosol
dc.subject.enbiogenic volatile organic compounds
dc.subject.enlandes forest
dc.subject.ennew particle formation
dc.title.enObservation of nighttime new particle formation over the French Landes forest
dc.typeArticle de revue
dc.identifier.doi10.1016/j.scitotenv.2017.10.118
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalScience of the Total Environment
bordeaux.page1084-1092
bordeaux.volume621
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02627546
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02627546v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Science%20of%20the%20Total%20Environment&rft.date=2018&rft.volume=621&rft.spage=1084-1092&rft.epage=1084-1092&rft.eissn=0048-9697&rft.issn=0048-9697&rft.au=KAMMER,%20Julien&PERRAUDIN,%20E.&FLAUD,%20P.-M.&LAMAUD,%20Eric&BONNEFOND,%20Jean-Marc&rft.genre=article


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