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dc.contributor.authorKelley, Maxwell
dc.contributor.authorRomanou, Anastasia
dc.contributor.authorCampin, Jean-Michel
dc.contributor.authorScott, Jeremy
dc.contributor.authorArmour, Kyle
dc.contributor.authorMarshall, John C
dc.date.accessioned2015-07-24T12:22:08Z
dc.date.available2015-07-24T12:22:08Z
dc.date.issued2014-09
dc.date.submitted2013-12
dc.identifier.issn0930-7575
dc.identifier.issn1432-0894
dc.identifier.urihttp://hdl.handle.net/1721.1/97892
dc.description.abstractWe study the role of the ocean in setting the patterns and timescale of the transient response of the climate to anthropogenic greenhouse gas forcing. A novel framework is set out which involves integration of an ocean-only model in which the anthropogenic temperature signal is forced from the surface by anomalous downwelling heat fluxes and damped at a rate controlled by a ‘climate feedback’ parameter. We observe a broad correspondence between the evolution of the anthropogenic temperature (T[subscript anthro]) in our simplified ocean-only model and that of coupled climate models perturbed by a quadrupling of CO[subscript 2]. This suggests that many of the mechanisms at work in fully coupled models are captured by our idealized ocean-only system. The framework allows us to probe the role of the ocean in delaying warming signals in the Southern Ocean and in the northern North Atlantic, and in amplifying the warming signal in the Arctic. By comparing active and passive temperature-like tracers we assess the degree to which changes in ocean circulation play a role in setting the distribution and evolution of T[subscript anthro]. The background ocean circulation strongly influences the large-scale patterns of ocean heat uptake and storage, such that T[subscript anthro] is governed by an advection/diffusion equation and weakly damped to the atmosphere at a rate set by climate feedbacks. Where warming is sufficiently small, for example in the Southern Ocean, changes in ocean circulation play a secondary role. In other regions, most noticeably in the North Atlantic, changes in ocean circulation induced by T[subscript anthro] are central in shaping the response.en_US
dc.description.sponsorshipUnited States. National Aeronautics and Space Administration. Modeling, Analysis, and Prediction Programen_US
dc.description.sponsorshipMassachusetts Institute of Technology. Joint Program on the Science & Policy of Global Changeen_US
dc.description.sponsorshipJames S. McDonnell Foundation (Postdoctoral Fellowship)en_US
dc.language.isoen_US
dc.publisherSpringer-Verlagen_US
dc.relation.isversionofhttp://dx.doi.org/10.1007/s00382-014-2308-0en_US
dc.rightsArticle is available under a Creative Commons license; see publisher's site for details.en_US
dc.rights.urihttp://creativecommons.org/en_US
dc.sourceSpringeren_US
dc.titleThe ocean’s role in the transient response of climate to abrupt greenhouse gas forcingen_US
dc.typeArticleen_US
dc.identifier.citationMarshall, John, Jeffery R. Scott, Kyle C. Armour, J.-M. Campin, Maxwell Kelley, and Anastasia Romanou. “The Ocean’s Role in the Transient Response of Climate to Abrupt Greenhouse Gas Forcing.” Climate Dynamics 44, no. 7–8 (September 4, 2014): 2287–2299.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Center for Global Change Scienceen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciencesen_US
dc.contributor.mitauthorMarshall, John C.en_US
dc.contributor.mitauthorArmour, Kyle C.en_US
dc.contributor.mitauthorCampin, Jean-Michelen_US
dc.contributor.mitauthorScott, Jeffery R.en_US
dc.relation.journalClimate Dynamicsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsMarshall, John; Scott, Jeffery R.; Armour, Kyle C.; Campin, J.-M.; Kelley, Maxwell; Romanou, Anastasiaen_US
dc.identifier.orcidhttps://orcid.org/0000-0001-9230-3591
mit.licensePUBLISHER_CCen_US
mit.metadata.statusComplete


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