Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene
Changes in climate variability are as important for society to address as are changes in mean climate1. Contrasting temperature variability during the Last Glacial Maximum and the Holocene can provide insights into the relationship between the mean state of the climate and its variability2,3. Howeve...
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ftnerc:oai:nora.nerc.ac.uk:519278 2023-05-15T16:27:59+02:00 Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene Rehfeld, Kira Münch, Thomas Ho, Sze Ling Laepple, Thomas 2018-02 text http://nora.nerc.ac.uk/id/eprint/519278/ https://nora.nerc.ac.uk/id/eprint/519278/1/Rehfeld%20-%20Global%20patterns%20of%20declining%20temperature%20variability%20AAM.pdf https://doi.org/10.1038/nature25454 en eng Macmillan Publishers Limited https://nora.nerc.ac.uk/id/eprint/519278/1/Rehfeld%20-%20Global%20patterns%20of%20declining%20temperature%20variability%20AAM.pdf Rehfeld, Kira; Münch, Thomas; Ho, Sze Ling; Laepple, Thomas. 2018 Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene. Nature, 554. 356-359. https://doi.org/10.1038/nature25454 <https://doi.org/10.1038/nature25454> Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.1038/nature25454 2023-02-04T19:46:10Z Changes in climate variability are as important for society to address as are changes in mean climate1. Contrasting temperature variability during the Last Glacial Maximum and the Holocene can provide insights into the relationship between the mean state of the climate and its variability2,3. However, although glacial–interglacial changes in variability have been quantified for Greenland2, a global view remains elusive. Here we use a network of marine and terrestrial temperature proxies to show that temperature variability decreased globally by a factor of four as the climate warmed by 3–8 degrees Celsius from the Last Glacial Maximum (around 21,000 years ago) to the Holocene epoch (the past 11,500 years). This decrease had a clear zonal pattern, with little change in the tropics (by a factor of only 1.6–2.8) and greater change in the mid-latitudes of both hemispheres (by a factor of 3.3–14). By contrast, Greenland ice-core records show a reduction in temperature variability by a factor of 73, suggesting influences beyond local temperature or a decoupling of atmospheric and global surface temperature variability for Greenland. The overall pattern of reduced variability can be explained by changes in the meridional temperature gradient, a mechanism that points to further decreases in temperature variability in a warmer future. Article in Journal/Newspaper Greenland Greenland ice core ice core Natural Environment Research Council: NERC Open Research Archive Greenland Nature 554 7692 356 359 |
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Natural Environment Research Council: NERC Open Research Archive |
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English |
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Changes in climate variability are as important for society to address as are changes in mean climate1. Contrasting temperature variability during the Last Glacial Maximum and the Holocene can provide insights into the relationship between the mean state of the climate and its variability2,3. However, although glacial–interglacial changes in variability have been quantified for Greenland2, a global view remains elusive. Here we use a network of marine and terrestrial temperature proxies to show that temperature variability decreased globally by a factor of four as the climate warmed by 3–8 degrees Celsius from the Last Glacial Maximum (around 21,000 years ago) to the Holocene epoch (the past 11,500 years). This decrease had a clear zonal pattern, with little change in the tropics (by a factor of only 1.6–2.8) and greater change in the mid-latitudes of both hemispheres (by a factor of 3.3–14). By contrast, Greenland ice-core records show a reduction in temperature variability by a factor of 73, suggesting influences beyond local temperature or a decoupling of atmospheric and global surface temperature variability for Greenland. The overall pattern of reduced variability can be explained by changes in the meridional temperature gradient, a mechanism that points to further decreases in temperature variability in a warmer future. |
format |
Article in Journal/Newspaper |
author |
Rehfeld, Kira Münch, Thomas Ho, Sze Ling Laepple, Thomas |
spellingShingle |
Rehfeld, Kira Münch, Thomas Ho, Sze Ling Laepple, Thomas Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene |
author_facet |
Rehfeld, Kira Münch, Thomas Ho, Sze Ling Laepple, Thomas |
author_sort |
Rehfeld, Kira |
title |
Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene |
title_short |
Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene |
title_full |
Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene |
title_fullStr |
Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene |
title_full_unstemmed |
Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene |
title_sort |
global patterns of declining temperature variability from the last glacial maximum to the holocene |
publisher |
Macmillan Publishers Limited |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/519278/ https://nora.nerc.ac.uk/id/eprint/519278/1/Rehfeld%20-%20Global%20patterns%20of%20declining%20temperature%20variability%20AAM.pdf https://doi.org/10.1038/nature25454 |
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Greenland |
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Greenland |
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Greenland Greenland ice core ice core |
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Greenland Greenland ice core ice core |
op_relation |
https://nora.nerc.ac.uk/id/eprint/519278/1/Rehfeld%20-%20Global%20patterns%20of%20declining%20temperature%20variability%20AAM.pdf Rehfeld, Kira; Münch, Thomas; Ho, Sze Ling; Laepple, Thomas. 2018 Global patterns of declining temperature variability from the Last Glacial Maximum to the Holocene. Nature, 554. 356-359. https://doi.org/10.1038/nature25454 <https://doi.org/10.1038/nature25454> |
op_doi |
https://doi.org/10.1038/nature25454 |
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Nature |
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554 |
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7692 |
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356 |
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359 |
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1766017590426075136 |