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      Role of Asian summer monsoon subsystems in the inter-hemispheric progression of deglaciation

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          Geomorphic/Tectonic Control of Sediment Discharge to the Ocean: The Importance of Small Mountainous Rivers

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            A long-term numerical solution for the insolation quantities of the Earth

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              The Last Glacial Maximum.

              We used 5704 14C, 10Be, and 3He ages that span the interval from 10,000 to 50,000 years ago (10 to 50 ka) to constrain the timing of the Last Glacial Maximum (LGM) in terms of global ice-sheet and mountain-glacier extent. Growth of the ice sheets to their maximum positions occurred between 33.0 and 26.5 ka in response to climate forcing from decreases in northern summer insolation, tropical Pacific sea surface temperatures, and atmospheric CO2. Nearly all ice sheets were at their LGM positions from 26.5 ka to 19 to 20 ka, corresponding to minima in these forcings. The onset of Northern Hemisphere deglaciation 19 to 20 ka was induced by an increase in northern summer insolation, providing the source for an abrupt rise in sea level. The onset of deglaciation of the West Antarctic Ice Sheet occurred between 14 and 15 ka, consistent with evidence that this was the primary source for an abrupt rise in sea level approximately 14.5 ka.
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                Author and article information

                Journal
                Nature Geoscience
                Nat. Geosci.
                Springer Nature
                1752-0894
                1752-0908
                March 18 2019
                Article
                10.1038/s41561-019-0319-5
                831c774a-66b3-4404-a630-58e05e40fa61
                © 2019

                http://www.springer.com/tdm

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