3D climate simulations of the Archean find that Methane has a strong cooling effect at high concentrations (article)
dc.contributor.author | Eager-Nash, JK | |
dc.contributor.author | Mayne, NJ | |
dc.contributor.author | Nicholson, AE | |
dc.contributor.author | Prins, JE | |
dc.contributor.author | Young, OCF | |
dc.contributor.author | Daines, SJ | |
dc.contributor.author | Sergeev, DE | |
dc.contributor.author | Lambert, FH | |
dc.contributor.author | Manners, J | |
dc.contributor.author | Boutle, IA | |
dc.contributor.author | Wolf, WT | |
dc.contributor.author | Kamp, IEE | |
dc.contributor.author | Kohary, K | |
dc.contributor.author | Lenton, TM | |
dc.date.accessioned | 2023-02-22T09:59:22Z | |
dc.date.issued | 2023-03-01 | |
dc.date.updated | 2023-02-22T08:42:11Z | |
dc.description.abstract | Methane is thought to have been an important greenhouse gas during the Archean, although its potential warming has been found to be limited at high concentrations due to its high shortwave absorption. We use the Met Office Unified Model, a general circulation model, to further explore the climatic effect of different Archean methane concentrations. Surface warming peaks at a pressure ratio pCH4:pCO2 of approximately 0.1, reaching a maximum of up to 7 K before significant cooling above this ratio. Equator-to-pole temperature differences also tend to increase up to pCH4 ≤ 300 Pa, which is driven by a difference in radiative forcing at the equator and poles by methane and a reduction in the latitudinal extend of the Hadley circulation. 3D models are important to fully capture the cooling effect of methane, due to these impacts of the circulation. | en_GB |
dc.description.sponsorship | UK Research and Innovation | en_GB |
dc.description.sponsorship | Leverhulme Trust | en_GB |
dc.description.sponsorship | Science and Technology Facilities Council (STFC) | en_GB |
dc.identifier.citation | Vol. 128 (6), article e2022JD037544 | en_GB |
dc.identifier.doi | 10.1029/2022JD037544 | |
dc.identifier.grantnumber | MR/T040866/1 | en_GB |
dc.identifier.grantnumber | ST/R000395/1 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/132519 | |
dc.identifier | ORCID: 0000-0001-6707-4563 (Mayne, Nathan) | |
dc.language.iso | en | en_GB |
dc.publisher | American Geophysical Union | en_GB |
dc.relation.url | https://doi.org/10.24378/exe.4347 | en_GB |
dc.rights | © 2023. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. | |
dc.title | 3D climate simulations of the Archean find that Methane has a strong cooling effect at high concentrations (article) | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2023-02-22T09:59:22Z | |
dc.identifier.issn | 2169-897X | |
dc.description | This is the final version. Available on open access from via the American Geophysical Union the DOI in this record | en_GB |
dc.description | Open Research: The research data supporting this publication are openly available from the University of Exeter’s institutional repository at: https://doi.org/10.24378/exe.4347 with CC BY 4.0 (Eager-Nash et al., 2022) | en_GB |
dc.identifier.journal | Journal of Geophysical Research: Atmospheres | en_GB |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | en_GB |
dcterms.dateAccepted | 2023-02-19 | |
dcterms.dateSubmitted | 2022-07-22 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2023-02-19 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2023-02-22T08:42:14Z | |
refterms.versionFCD | AM | |
refterms.dateFOA | 2023-03-24T15:34:52Z | |
refterms.panel | B | en_GB |
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