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The sensitivity of the present day Atlantic meriodinal overturning circulation to freshwater forcing

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dc.contributor.author Otterå, Odd Helge eng
dc.contributor.author Drange, Helge eng
dc.contributor.author Bentsen, Mats eng
dc.contributor.author Kvamstø, Nils Gunnar eng
dc.contributor.author Jiang, Dabang eng
dc.date.accessioned 2005-09-22T08:25:32Z
dc.date.available 2005-09-22T08:25:32Z
dc.date.issued 2003-09-09 eng
dc.identifier.citation Geophysical Research Letters 2003 30(17): 1898 en
dc.identifier.issn 0094-8276 eng
dc.identifier.uri http://hdl.handle.net/1956/804
dc.description.abstract Mounting evidence indicates that the Atlantic Meridional Overturning Circulation (AMOC) was strongly reduced during cold climate episodes in the past, possible due to freshwater influx from glacial melting. It is also expected that the freshwater input to high northern latitudes will increase as human-induced global warming continues, with potential impacts on the AMOC. Here we present results from a 150 years sensitivity experiment with the Bergen Climate Model (BCM) for the present-day climate, but with enhanced runoff from the Arctic region throughout the integration. The AMOC drops by 30% over the first 50 years, followed by a gradual recovery. The simulated response indicates that the present-day AMOC might be robust to the isolated effect of enhanced, high-latitude freshwater forcing on a centennial time scale, and that the western tropical North Atlantic may provide key information about the long-term variability, and by that monitoring, of the AMOC. en
dc.format.extent 526579 bytes eng
dc.format.mimetype application/pdf eng
dc.language.iso eng eng
dc.publisher American Geophysical Union eng
dc.subject Oceanography eng
dc.subject Climate dynamics eng
dc.title The sensitivity of the present day Atlantic meriodinal overturning circulation to freshwater forcing eng
dc.type Journal article eng
dc.type Peer reviewed eng
bora.peerreviewed Peer reviewed eng
bibo.doi http://dx.doi.org/10.1029/2003GL017578 eng
dc.identifier.doi http://dx.doi.org/10.1029/2003GL017578


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