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Coral microatoll reconstructions of El Niño-Southern Oscillation: new windows on seasonal and interannual processes

Journal Article


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Abstract


  • Porites coral microatolls show δ18O signal reproducibility and fidelity comparable to more conventional coral

    growth forms. Longer-lived and fossil microatolls, which grow in suitably flushed environments, contain δ18O

    signals that can significantly extend instrumental records of the El Niño-Southern Oscillation. Porites corals are the most commonly

    used genus for reconstructing El Niño-

    Southern Oscillation (ENSO). This hermatypic

    coral is found in all tropical reef environments

    (Veron 2000) with a variety of

    growth forms. Climate reconstructions of a

    century or more have been obtained from

    the most common, dome-shaped Porites

    growth form, whereby the colonies, beginning

    from the substrate, grow outward

    and upward towards the ocean surface

    (Knutson et al. 1972). Domed structures,

    however, are not the only Porites growth

    form.

Publication Date


  • 2013

Citation


  • McGregor, H. V., Woodroffe, C. D., Fischer, M., Gagan, M. K. & Fink, D. (2013). Coral microatoll reconstructions of El Niño-Southern Oscillation: new windows on seasonal and interannual processes. PAGES News, 21 (2), 52-53.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2189&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/1171

Number Of Pages


  • 1

Start Page


  • 52

End Page


  • 53

Volume


  • 21

Issue


  • 2

Place Of Publication


  • Sweden

Abstract


  • Porites coral microatolls show δ18O signal reproducibility and fidelity comparable to more conventional coral

    growth forms. Longer-lived and fossil microatolls, which grow in suitably flushed environments, contain δ18O

    signals that can significantly extend instrumental records of the El Niño-Southern Oscillation. Porites corals are the most commonly

    used genus for reconstructing El Niño-

    Southern Oscillation (ENSO). This hermatypic

    coral is found in all tropical reef environments

    (Veron 2000) with a variety of

    growth forms. Climate reconstructions of a

    century or more have been obtained from

    the most common, dome-shaped Porites

    growth form, whereby the colonies, beginning

    from the substrate, grow outward

    and upward towards the ocean surface

    (Knutson et al. 1972). Domed structures,

    however, are not the only Porites growth

    form.

Publication Date


  • 2013

Citation


  • McGregor, H. V., Woodroffe, C. D., Fischer, M., Gagan, M. K. & Fink, D. (2013). Coral microatoll reconstructions of El Niño-Southern Oscillation: new windows on seasonal and interannual processes. PAGES News, 21 (2), 52-53.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2189&context=smhpapers

Ro Metadata Url


  • http://ro.uow.edu.au/smhpapers/1171

Number Of Pages


  • 1

Start Page


  • 52

End Page


  • 53

Volume


  • 21

Issue


  • 2

Place Of Publication


  • Sweden