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Towards a new paleotemperature proxy from reef coral occurrences
Lauchstedt, A.; Pandolfi, J.M.; Kiessling, W. (2017). Towards a new paleotemperature proxy from reef coral occurrences. NPG Scientific Reports 7(1): 6 pp. https://hdl.handle.net/10.1038/s41598-017-10961-3
In: Scientific Reports (Nature Publishing Group). Nature Publishing Group: London. ISSN 2045-2322; e-ISSN 2045-2322, more
Peer reviewed article  

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  • Lauchstedt, A.
  • Pandolfi, J.M.
  • Kiessling, W.

Abstract
    Global mean temperature is thought to have exceeded that of today during the last interglacial episode (LIG, ~ 125,000 yrs b.p.) but robust paleoclimate data are still rare in low latitudes. Occurrence data of tropical reef corals may provide new proxies of low latitude sea-surface temperatures. Using modern reef coral distributions we developed a geographically explicit model of sea surface temperatures. Applying this model to coral occurrence data of the LIG provides a latitudinal U-shaped pattern of temperature anomalies with cooler than modern temperatures around the equator and warmer subtropical climes. Our results agree with previously published estimates of LIG temperatures and suggest a poleward broadening of the habitable zone for reef corals during the LIG.

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