Changes in the Phase of the Annual Cycle of Surface Temperature

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Changes in the Phase of the Annual Cycle of Surface Temperature

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dc.contributor.author Fung, Inez Y.
dc.contributor.author Huybers, Peter John
dc.contributor.author Stine, Alexander R.
dc.date.accessioned 2009-10-28T14:28:58Z
dc.date.issued 2009
dc.identifier.citation Stine, Alexander R., Peter John Huybers, and Inez Y. Fung. 2009. Changes in the phase of the annual cycle of surface temperature. Nature 457: 435-440. en_US
dc.identifier.issn 0028-0836 en_US
dc.identifier.uri http://nrs.harvard.edu/urn-3:HUL.InstRepos:3355939
dc.description.abstract The annual cycle in the Earth's surface temperature is extremely large—comparable in magnitude to the glacial–interglacial cycles over most of the planet. Trends in the phase and the amplitude of the annual cycle have been observed, but the causes and significance of these changes remain poorly understood—in part because we lack an understanding of the natural variability. Here we show that the phase of the annual cycle of surface temperature over extratropical land shifted towards earlier seasons by 1.7 days between 1954 and 2007; this change is highly anomalous with respect to earlier variations, which we interpret as being indicative of the natural range. Significant changes in the amplitude of the annual cycle are also observed between 1954 and 2007. These shifts in the annual cycles appear to be related, in part, to changes in the northern annular mode of climate variability, although the land phase shift is significantly larger than that predicted by trends in the northern annular mode alone. Few of the climate models presented by the Intergovernmental Panel on Climate Change reproduce the observed decrease in amplitude and none reproduce the shift towards earlier seasons. en_US
dc.description.sponsorship Earth and Planetary Sciences en_US
dc.language.iso en_US en_US
dc.publisher Nature Publishing Group en_US
dc.relation.isversionof http://dx.doi.org/10.1038/nature07675 en_US
dc.relation.hasversion http://www.people.fas.harvard.edu/~phuybers/ en_US
dash.license LAA
dc.title Changes in the Phase of the Annual Cycle of Surface Temperature en_US
dc.type Journal Article en_US
dc.description.version Version of Record en_US
dc.relation.journal Nature -London- en_US
dash.depositing.author Huybers, Peter John
dc.date.available 2009-10-28T14:28:58Z

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  • FAS Scholarly Articles [7587]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University

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