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Methane budget estimates in Finland from the CarbonTracker Europe-CH4 data assimilation system
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dc.contributor.authorTsuruta, Akies_ES
dc.contributor.authorAalto, Tuulaes_ES
dc.contributor.authorBackman, Leifes_ES
dc.contributor.authorKrol, Maarten C.es_ES
dc.contributor.authorPeters, Wouteres_ES
dc.contributor.authorLienert, Sebastianes_ES
dc.contributor.authorJoos, Fortunates_ES
dc.contributor.authorMiller, Paul A.es_ES
dc.contributor.authorZhang, Wenxines_ES
dc.contributor.authorLaurila, Tuomases_ES
dc.contributor.authorHatakka, Juhaes_ES
dc.contributor.authorLeskinen, Aries_ES
dc.contributor.authorLehtinen, Kari E. J.es_ES
dc.contributor.authorPeltola, Ollies_ES
dc.contributor.authorVesala, Timoes_ES
dc.contributor.authorLevula, Jannees_ES
dc.contributor.authorDlugokencky, Edward J.es_ES
dc.contributor.authorHeimann, Martines_ES
dc.contributor.authorKozlova, Elenaes_ES
dc.contributor.authorAurela, Mikaes_ES
dc.contributor.authorLohila, Annaleaes_ES
dc.contributor.authorKauhaniemi, Maries_ES
dc.contributor.authorGómez Peláez, Ángel Jesúses_ES
dc.date.accessioned2019-01-31T10:10:05Z-
dc.date.available2019-01-31T10:10:05Z-
dc.date.issued2019-
dc.identifier.citationTellus B. 2019, 71, 1445379es_ES
dc.identifier.issn0280-6509-
dc.identifier.issn1600-0889-
dc.identifier.urihttp://hdl.handle.net/20.500.11765/10228-
dc.description.abstractWe estimated the CH4 budget in Finland for 2004–2014 using the CTE-CH4 data assimilation system with an extended atmospheric CH4 observation network of seven sites from Finland to surrounding regions (Hyytiälä, Kjølnes, Kumpula, Pallas, Puijo, Sodankylä, and Utö). The estimated average annual total emission for Finland is 0.6 ± 0.5 Tg CH4 yr−1. Sensitivity experiments show that the posterior biospheric emission estimates for Finland are between 0.3 and 0.9 Tg CH4 yr−1, which lies between the LPX-Bern-DYPTOP (0.2 Tg CH4 yr−1) and LPJG-WHyMe (2.2 Tg CH4 yr−1) process-based model estimates. For anthropogenic emissions, we found that the EDGAR v4.2 FT2010 inventory (0.4 Tg CH4 yr−1) is likely to overestimate emissions in southernmost Finland, but the extent of overestimation and possible relocation of emissions are difficult to derive from the current observation network. The posterior emission estimates were especially reliant on prior information in central Finland. However, based on analysis of posterior atmospheric CH4, we found that the anthropogenic emission distribution based on a national inventory is more reliable than the one based on EDGAR v4.2 FT2010. The contribution of total emissions in Finland to global total emissions is only about 0.13%, and the derived total emissions in Finland showed no trend during 2004–2014. The model using optimized emissions was able to reproduce observed atmospheric CH4 at the sites in Finland and surrounding regions fairly well (correlation > 0.75, bias < ±7 ppb), supporting adequacy of the observations to be used in atmospheric inversion studies. In addition to global budget estimates, we found that CTE-CH4 is also applicable for regional budget estimates, where small scale (1°×1° in this case) optimization is possible with a dense observation network.es_ES
dc.language.isoenges_ES
dc.publisherTaylor & Francises_ES
dc.rightsLicencia CC: Reconocimiento CC BYes_ES
dc.subjectCH4 fluxes_ES
dc.subjectAtmospheric CH4es_ES
dc.subjectData assimilationes_ES
dc.subjectFlux estimationes_ES
dc.titleMethane budget estimates in Finland from the CarbonTracker Europe-CH4 data assimilation systemes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttps://dx.doi.org/10.1080/16000889.2018.1565030es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES
Colecciones: Artículos científicos 2019-2022


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