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Monitoring climate variability over the past 116 years in coral oxygen isotopes from Ningaloo Reef, Western Australia


Posted on 02 August 2011

TitleMonitoring climate variability over the past 116 years in coral oxygen isotopes from Ningaloo Reef, Western Australia
Publication TypeJournal Article
Year of Publication2000
AuthorsKuhnert, H, Pätzold J, Wyrwoll K-H, Wefer G
JournalInternational Journal of Earth Sciences
Volume88
Issue4
Pagination725 - 732
Date Published3/2000
ISSN1437-3262
Keywordsgeology, isotopes, Ningaloo, other, temperature
Abstract116-year record of coral skeletal δ18O is presented from a colony of Porites lutea from Ningaloo Reef, western Australia. Interannual variability of sea-surface temperatures (SST) inferred from skeletal δ18O is dominated by a 9.5-year period, and may constitute a characteristic signal of the Leeuwin Current. On long-terms coral skeletal δ18O indicates a near-continuous increase of SST at Ningaloo Reef over one century. The skeletal δ18O time series was checked for the presence of seasonal cooling events resulting from major volcanic eruptions. An ∼1  °C cooling is evident following the eruption of Pinatubo in 1991, which reproduces the results of previous investigations. However, only weak or no signals can be related to the eruptions of Krakatau (1883) and Agung (1963).
URLhttp://www.springerlink.com/content/61tl8b2gr1cd70l8/
DOI10.1007/s005310050300
Short TitleInternational Journal of Earth Sciences
Refereed DesignationRefereed