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| CORALS AND SCLEROSPONGES | ||||||||||
Moorea Lagoon - del18O and del13C Data |
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Boiseau, M., M. Ghil, and A. Juillet-Leclerc. 1999. Climatic trends and interdecadal variability from South-Central Pacific coral records. Geophysical Research Letters 26(18):2881-2884 (15 September 1999).
Start Year: 1852 AD End Year: 1990 AD Data: Please Cite Data Contributors! east_pacific/moorea_1999.txt |
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Summary:We study climate variability over interdecadal time scales from d13C and d18O records, measured in a Porites lutea coral core drilled in the Moorea lagoon. Previously, we demonstrated that the annual d18O variations reflect those in sea-surface temperature (SST), while the annual d13C variations record primarily cloud-cover changes. We apply two distinct spectral analysis methods to the d13C and d18O time series from 1853 to 1989. Our analysis of the d18O record shows a secular warming trend and a 35-year oscillation in temperatures over the last 137 years. A trend and a 34-year cycle are also found in the d13C record. The latter trend may be caused by either anthropogenic effects or a cloud-cover increase in this region of the Pacific Ocean, while the interdecadal oscillation appears to be related to changes in cloud cover, as well as in precipitation.More Info on Corals and Sclerosponges |
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Parameters:del18O; del13C |
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Complete XML Record:noaa-coral-1876 (Last Revised: 2007-09-05 ) |
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