Show simple item record

dc.contributor.authorBock, Josué
dc.contributor.authorMichou, Martine
dc.contributor.authorNabat, Pierre
dc.contributor.authorAbe, Manabu
dc.contributor.authorMulcahy, Jane P.
dc.contributor.authorOliviè, Dirk Jan Leo
dc.contributor.authorSchwinger, Jörg
dc.contributor.authorSuntharalingam, Parvadha
dc.contributor.authorTjiputra, Jerry
dc.contributor.authorvan Hulten, Marco Marinus Peter
dc.contributor.authorWatanabe, Michio
dc.contributor.authorYool, Andrew
dc.contributor.authorSéférian, Roland
dc.date.accessioned2022-04-26T08:02:45Z
dc.date.available2022-04-26T08:02:45Z
dc.date.created2021-07-13T14:59:58Z
dc.date.issued2021
dc.identifier.issn1726-4170
dc.identifier.urihttps://hdl.handle.net/11250/2992706
dc.description.abstractCharacteristics and trends of surface ocean dimethylsulfide (DMS) concentrations and fluxes into the atmosphere of four Earth system models (ESMs: CNRM-ESM2-1, MIROC-ES2L, NorESM2-LM, and UKESM1-0-LL) are analysed over the recent past (1980–2009) and into the future, using Coupled Model Intercomparison Project 6 (CMIP6) simulations. The DMS concentrations in historical simulations systematically underestimate the most widely used observed climatology but compare more favourably against two recent observation-based datasets. The models better reproduce observations in mid to high latitudes, as well as in polar and westerlies marine biomes. The resulting multi-model estimate of contemporary global ocean DMS emissions is 16–24 Tg S yr−1, which is narrower than the observational-derived range of 16 to 28 Tg S yr−1. The four models disagree on the sign of the trend of the global DMS flux from 1980 onwards, with two models showing an increase and two models a decrease. At the global scale, these trends are dominated by changes in surface DMS concentrations in all models, irrespective of the air–sea flux parameterisation used. In turn, three models consistently show that changes in DMS concentrations are correlated with changes in marine productivity; however, marine productivity is poorly constrained in the current generation of ESMs, thus limiting the predictive ability of this relationship. In contrast, a consensus is found among all models over polar latitudes where an increasing trend is predominantly driven by the retreating sea-ice extent. However, the magnitude of this trend between models differs by a factor of 3, from 2.9 to 9.2 Gg S decade−1 over the period 1980–2014, which is at the low end of a recent satellite-derived analysis. Similar increasing trends are found in climate projections over the 21st century.en_US
dc.language.isoengen_US
dc.publisherCopernicus Publicationsen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleEvaluation of ocean dimethylsulfide concentration and emission in CMIP6 modelsen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright Author(s) 2021en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.doi10.5194/bg-18-3823-2021
dc.identifier.cristin1921595
dc.source.journalBiogeosciencesen_US
dc.source.pagenumber3823-3860en_US
dc.relation.projectEC/H2020/641816en_US
dc.relation.projectEC/H2020/101003536en_US
dc.identifier.citationBiogeosciences. 2021, 18 (12), 3823-3860.en_US
dc.source.volume18en_US
dc.source.issue12en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal