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| Titel |
A new global reconstruction of temperature changes at the Last Glacial Maximum |
| VerfasserIn |
J. D. Annan  , J. C. Hargreaves |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1814-9324
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| Digitales Dokument |
URL |
| Erschienen |
In: Climate of the Past ; 9, no. 1 ; Nr. 9, no. 1 (2013-02-13), S.367-376 |
| Datensatznummer |
250017443
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| Publikation (Nr.) |
 copernicus.org/cp-9-367-2013.pdf |
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| Zusammenfassung |
| Some recent compilations of proxy data both on land and ocean
(MARGO Project Members, 2009; Bartlein
et al., 2011; Shakun et al., 2012), have provided a new
opportunity for an improved assessment of the overall climatic state of the
Last Glacial Maximum. In this paper, we combine these proxy data with the
ensemble of structurally diverse state of the art climate models which
participated in the PMIP2 project (Braconnot et al., 2007) to generate a
spatially complete reconstruction of surface air (and sea surface)
temperatures. We test a variety of approaches, and show that multiple linear
regression performs well for this application. Our reconstruction is
significantly different to and more accurate than previous approaches and we
obtain an estimated global mean cooling of 4.0 ± 0.8 °C (95%
CI). |
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