dc.date.accessioned | 2021-04-21T20:00:19Z | |
dc.date.available | 2021-04-21T20:00:19Z | |
dc.date.created | 2021-02-22T12:12:00Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Mazzini, Adriano Sciarra, Alessandra Etiope, Giuseppe Sadavarte, P. Houweling, S. Pandey, S. Husein, A. . Relevant methane emission to the atmosphere from a geological gas manifestation. Scientific Reports. 2021, 11(1), 984-997 | |
dc.identifier.uri | http://hdl.handle.net/10852/85437 | |
dc.description.abstract | Abstract Quantifying natural geological sources of methane (CH 4 ) allows to improve the assessment of anthropogenic emissions to the atmosphere from fossil fuel industries. The global CH 4 flux of geological gas is, however, an object of debate. Recent fossil ( 14 C-free) CH 4 measurements in preindustrial-era ice cores suggest very low global geological emissions (~ 1.6 Tg year −1 ), implying a larger fossil fuel industry source. This is however in contrast with previously published bottom-up and top-down geo-emission estimates (~ 45 Tg year −1 ) and even regional-scale emissions of ~ 1–2 Tg year −1 . Here we report on significant geological CH 4 emissions from the Lusi hydrothermal system (Indonesia), measured by ground-based and satellite (TROPOMI) techniques. Both techniques indicate a total CH 4 output of ~ 0.1 Tg year −1 , equivalent to the minimum value of global geo-emission derived by ice core 14 CH 4 estimates. Our results are consistent with the order of magnitude of the emission factors of large seeps used in global bottom-up estimates, and endorse a substantial contribution from natural Earth’s CH 4 degassing. The preindustrial ice core assessments of geological CH 4 release may be underestimated and require further study. Satellite measurements can help to test geological CH 4 emission factors and explain the gap between the contrasting estimates. | |
dc.language | EN | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Relevant methane emission to the atmosphere from a geological gas manifestation | |
dc.type | Journal article | |
dc.creator.author | Mazzini, Adriano | |
dc.creator.author | Sciarra, Alessandra | |
dc.creator.author | Etiope, Giuseppe | |
dc.creator.author | Sadavarte, P. | |
dc.creator.author | Houweling, S. | |
dc.creator.author | Pandey, S. | |
dc.creator.author | Husein, A. | |
cristin.unitcode | 185,15,22,40 | |
cristin.unitname | Senter for Jordens utvikling og dynamikk | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1892275 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scientific Reports&rft.volume=11&rft.spage=984&rft.date=2021 | |
dc.identifier.jtitle | Scientific Reports | |
dc.identifier.volume | 11 | |
dc.identifier.issue | 1 | |
dc.identifier.doi | https://doi.org/10.1038/s41598-021-83369-9 | |
dc.identifier.urn | URN:NBN:no-88104 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2045-2322 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/85437/1/Mazzini_2021_SCIREP_Lusi_flux.pdf | |
dc.type.version | PublishedVersion | |
cristin.articleid | 4138 | |
dc.relation.project | NFR/288299 | |
dc.relation.project | NFR/223272 | |
dc.relation.project | EC/FP7/308126 | |