Early Pleistocene Glacial Cycles and the Integrated Summer Insolation Forcing

Early Pleistocene Glacial Cycles and the Integrated Summer Insolation Forcing

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Early Pleistocene Glacial Cycles and the Integrated Summer Insolation Forcing

dc.contributor.author	Huybers, Peter John
dc.date.accessioned	2009-11-05T18:29:45Z
dc.date.issued	2006
dc.identifier.citation	Huybers, Peter J. 2006. Early Pleistocene glacial cycles and the integrated summer insolation forcing. Science 313(5786): 508-511.	en_US
dc.identifier.issn	0036-8075	en_US
dc.identifier.uri	http://nrs.harvard.edu/urn-3:HUL.InstRepos:3382981
dc.description.abstract	Long-term variations in Northern Hemisphere summer insolation are generally thought to control glaciation. But the intensity of summer insolation is primarily controlled by 20,000-year cycles in the precession of the equinoxes, whereas early Pleistocene glacial cycles occur at 40,000-year intervals, matching the period of changes in Earth’s obliquity. The resolution of this 40,000-year problem is that glaciers are sensitive to insolation integrated over the duration of the summer. The integrated summer insolation is primarily controlled by obliquity and not precession because, by Kepler’s second law, the duration of the summer is inversely proportional to Earth’s distance from the Sun.	en_US
dc.description.sponsorship	Earth and Planetary Sciences	en_US
dc.language.iso	en_US	en_US
dc.publisher	American Association for the Advancement of Science	en_US
dc.relation.isversionof	http://dx.doi.org/10.1126/science.1125249	en_US
dc.relation.hasversion	http://www.people.fas.harvard.edu/~phuybers/	en_US
dash.license	LAA
dc.title	Early Pleistocene Glacial Cycles and the Integrated Summer Insolation Forcing	en_US
dc.type	Journal Article	en_US
dc.description.version	Version of Record	en_US
dc.relation.journal	Science -New York then Washington-	en_US
dash.depositing.author	Huybers, Peter John
dc.date.available	2009-11-05T18:29:45Z