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dc.contributor.author
Fischer, Matthias
dc.contributor.author
Domeisen, Daniela
dc.contributor.author
Müller, Wolfgang A.
dc.contributor.author
Baehr, Johanna
dc.date.accessioned
2017-12-06T11:52:40Z
dc.date.available
2017-10-04T08:20:02Z
dc.date.available
2017-10-05T09:22:35Z
dc.date.available
2017-12-06T11:52:40Z
dc.date.issued
2017
dc.identifier.issn
2190-4987
dc.identifier.issn
2190-4979
dc.identifier.other
10.5194/esd-8-129-2017
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/189454
dc.identifier.doi
10.3929/ethz-b-000189454
dc.description.abstract
We investigate changes in the seasonal cycle of the Atlantic Ocean meridional heat transport (OHT) in a climate projection experiment with the Max Planck Institute Earth System Model (MPI-ESM) performed for the Coupled Model Intercomparison Project Phase 5 (CMIP5). Specifically, we compare a Representative Concentration Pathway (RCP) RCP 8.5 climate change scenario, covering the simulation period from 2005 to 2300, to a historical simulation, covering the simulation period from 1850 to 2005. In RCP 8.5, the OHT declines by 30–50 % in comparison to the historical simulation in the North Atlantic by the end of the 23rd century. The decline in the OHT is accompanied by a change in the seasonal cycle of the total OHT and its components. We decompose the OHT into overturning and gyre component. For the OHT seasonal cycle, we find a northward shift of 5° and latitude-dependent shifts between 1 and 6 months that are mainly associated with changes in the meridional velocity field. We find that the changes in the OHT seasonal cycle predominantly result from changes in the wind-driven surface circulation, which projects onto the overturning component of the OHT in the tropical and subtropical North Atlantic. This leads in turn to latitude-dependent shifts between 1 and 6 months in the overturning component. In comparison to the historical simulation, in the subpolar North Atlantic, in RCP 8.5 we find a reduction of the North Atlantic Deep Water formation and changes in the gyre heat transport result in a strongly weakened seasonal cycle with a weakened amplitude by the end of the 23rd century.
en_US
dc.format
application/pdf
dc.language.iso
en
en_US
dc.publisher
Copernicus
dc.rights.uri
http://creativecommons.org/licenses/by/3.0/
dc.title
Changes in the seasonal cycle of the Atlantic meridional heat transport in a RCP 8.5 climate projection in MPI-ESM
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 3.0 Unported
dc.date.published
2017-02-22
ethz.journal.title
Earth System Dynamics
ethz.journal.volume
8
en_US
ethz.pages.start
129
en_US
ethz.pages.end
146
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.code.ddc
DDC - DDC::5 - Science::550 - Earth sciences
en_US
ethz.publication.place
Göttingen
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02717 - Institut für Atmosphäre und Klima / Inst. Atmospheric and Climate Science::09612 - Domeisen, Daniela / Domeisen, Daniela
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02717 - Institut für Atmosphäre und Klima / Inst. Atmospheric and Climate Science::09612 - Domeisen, Daniela / Domeisen, Daniela
en_US
ethz.date.deposited
2017-10-04T08:20:03Z
ethz.source
FORM
ethz.eth
no
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-10-05T09:22:41Z
ethz.rosetta.lastUpdated
2024-02-02T03:25:39Z
ethz.rosetta.versionExported
true
ethz.COinS
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