Interglacials of the last 800,000 years
Interglacials, including the present (Holocene) period, are warm, low land ice extent (high sea level), end-members of glacial cycles. Based on a sea level definition, we identify eleven interglacials in the last 800,000 years, a result that is robust to alternative definitions. Data compilations su...
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ftcsic:oai:digital.csic.es:10261/168880 2024-02-11T09:56:31+01:00 Interglacials of the last 800,000 years Berger, B. Grimalt, Joan O. Martrat, Belen Vázquez Riveiros, Natalia 2016-03 http://hdl.handle.net/10261/168880 https://doi.org/10.1002/2015RG000482 en eng Wiley-Blackwell Publisher's version https://doi.org/10.1002/2015RG000482 Sí Reviews of Geophysics 54 (1) 2016:162-219 http://hdl.handle.net/10261/168880 doi:10.1002/2015RG000482 open Interglacials Quaternary artículo http://purl.org/coar/resource_type/c_6501 2016 ftcsic https://doi.org/10.1002/2015RG000482 2024-01-16T10:32:25Z Interglacials, including the present (Holocene) period, are warm, low land ice extent (high sea level), end-members of glacial cycles. Based on a sea level definition, we identify eleven interglacials in the last 800,000 years, a result that is robust to alternative definitions. Data compilations suggest that despite spatial heterogeneity, Marine Isotope Stages (MIS) 5e (last interglacial) and 11c (∼400 ka ago) were globally strong (warm), while MIS 13a (∼500 ka ago) was cool at many locations. A step change in strength of interglacials at 450 ka is apparent only in atmospheric CO2 and in Antarctic and deep ocean temperature. The onset of an interglacial (glacial termination) seems to require a reducing precession parameter (increasing Northern Hemisphere summer insolation), but this condition alone is insufficient. Terminations involve rapid, nonlinear, reactions of ice volume, CO2, and temperature to external astronomical forcing. The precise timing of events may be modulated by millennial-scale climate change that can lead to a contrasting timing of maximum interglacial intensity in each hemisphere. A variety of temporal trends is observed, such that maxima in the main records are observed either early or late in different interglacials. The end of an interglacial (glacial inception) is a slower process involving a global sequence of changes. Interglacials have been typically 10-30 ka long. The combination of minimal reduction in northern summer insolation over the next few orbital cycles, owing to low eccentricity, and high atmospheric greenhouse gas concentrations implies that the next glacial inception is many tens of millennia in the future. ©2015. The Authors. This paper arose as a result of a succession of workshops of the Past Interglacials Group (PIGS), sponsored by the Past Global Changes Project (PAGES). The authors acknowledge the contributions of all participants at those workshops, of whom the listed authors are only a subset. Numerous funding agencies have contributed to the work of this paper ... Article in Journal/Newspaper Antarc* Antarctic Digital.CSIC (Spanish National Research Council) Antarctic Reviews of Geophysics 54 1 162 219 |
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Digital.CSIC (Spanish National Research Council) |
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ftcsic |
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English |
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Interglacials Quaternary |
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Interglacials Quaternary Berger, B. Grimalt, Joan O. Martrat, Belen Vázquez Riveiros, Natalia Interglacials of the last 800,000 years |
topic_facet |
Interglacials Quaternary |
description |
Interglacials, including the present (Holocene) period, are warm, low land ice extent (high sea level), end-members of glacial cycles. Based on a sea level definition, we identify eleven interglacials in the last 800,000 years, a result that is robust to alternative definitions. Data compilations suggest that despite spatial heterogeneity, Marine Isotope Stages (MIS) 5e (last interglacial) and 11c (∼400 ka ago) were globally strong (warm), while MIS 13a (∼500 ka ago) was cool at many locations. A step change in strength of interglacials at 450 ka is apparent only in atmospheric CO2 and in Antarctic and deep ocean temperature. The onset of an interglacial (glacial termination) seems to require a reducing precession parameter (increasing Northern Hemisphere summer insolation), but this condition alone is insufficient. Terminations involve rapid, nonlinear, reactions of ice volume, CO2, and temperature to external astronomical forcing. The precise timing of events may be modulated by millennial-scale climate change that can lead to a contrasting timing of maximum interglacial intensity in each hemisphere. A variety of temporal trends is observed, such that maxima in the main records are observed either early or late in different interglacials. The end of an interglacial (glacial inception) is a slower process involving a global sequence of changes. Interglacials have been typically 10-30 ka long. The combination of minimal reduction in northern summer insolation over the next few orbital cycles, owing to low eccentricity, and high atmospheric greenhouse gas concentrations implies that the next glacial inception is many tens of millennia in the future. ©2015. The Authors. This paper arose as a result of a succession of workshops of the Past Interglacials Group (PIGS), sponsored by the Past Global Changes Project (PAGES). The authors acknowledge the contributions of all participants at those workshops, of whom the listed authors are only a subset. Numerous funding agencies have contributed to the work of this paper ... |
format |
Article in Journal/Newspaper |
author |
Berger, B. Grimalt, Joan O. Martrat, Belen Vázquez Riveiros, Natalia |
author_facet |
Berger, B. Grimalt, Joan O. Martrat, Belen Vázquez Riveiros, Natalia |
author_sort |
Berger, B. |
title |
Interglacials of the last 800,000 years |
title_short |
Interglacials of the last 800,000 years |
title_full |
Interglacials of the last 800,000 years |
title_fullStr |
Interglacials of the last 800,000 years |
title_full_unstemmed |
Interglacials of the last 800,000 years |
title_sort |
interglacials of the last 800,000 years |
publisher |
Wiley-Blackwell |
publishDate |
2016 |
url |
http://hdl.handle.net/10261/168880 https://doi.org/10.1002/2015RG000482 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
Publisher's version https://doi.org/10.1002/2015RG000482 Sí Reviews of Geophysics 54 (1) 2016:162-219 http://hdl.handle.net/10261/168880 doi:10.1002/2015RG000482 |
op_rights |
open |
op_doi |
https://doi.org/10.1002/2015RG000482 |
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Reviews of Geophysics |
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54 |
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1 |
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162 |
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219 |
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