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| CORALS AND SCLEROSPONGES | ||||||||||
Amedee Lighthouse - Paleothermometry Assessment |
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Stephans, C., T.M. Quinn, F. Taylor, and T. Correge. 2004. Assessing the Reproducibility of Coral-based Climate Records. Geophysical Research Letters, 31,18, L18210.
Start Year: 1967 AD End Year: 1992 AD Data: Please Cite Data Contributors! west_pacific/amedee2004.txt |
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Summary:We perform replication tests using monthly variations in Sr/Ca and d18O in four cores from three Porites lutea coral heads from New Caledonia to assess the reproducibility of coral-based climate records. Coral Sr/Ca (d18O) records are well correlated to each other and to the instrumental SST record (1967-1992), especially in terms of differences in the mean values of 25-year SST records (~0.2C, Sr/Ca-SST; 0.6C, d18O-SST). The average error associated with the coral Sr/Ca-SST (d18O-SST) of any particular month, season or year is ~0.8C (1.1C), 0.6C (0.8C) and 0.5C (0.6C), respectively. "Stacking" or averaging the individual proxy records reduces the error between observed and predicted SST, although the reduction is small for coral Sr/Ca. Excellent reproducibility among the coral proxies implies that reliable climate records can be generated from a single coral core and that coral Sr/Ca-SST records are not compromised, beyond the errors stated herein, by non-temperature-related biological effects.More Info on Corals and Sclerosponges |
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Parameters:del18O; SrCa; del13C |
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Complete XML Record:noaa-coral-1917 (Last Revised: 2007-09-05 ) |
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