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Reliability of coral isotope records from the western Pacific warm pool: A comparison using age-optimized records
| Content Provider | Semantic Scholar |
|---|---|
| Author | Guilderson, Thomas P. Schrag, Daniel P. |
| Copyright Year | 1999 |
| Abstract | Stable isotope analysis of two separate corals from Nauru Island in the warm pool of the western tropical Pacific confirm that coral oxygen isotopes are a robust recorder of environmental variables. Coral delta(18)O faithfully records interannual variability even when strongly influenced by kinetic effects. Interannual to decadal variability of coral delta(13)C remains enigmatic; only one of the two corals exhibits the expected light-delta(13)C response in the interannual band. Coral delta(18)O from this region has a great similarity to global instrumental temperature records reflecting the impact of the Pacific warm pool and variations of the Indonesian Low in concert with El Nino-Southern Oscillation on global climate. Since 1896, coral delta(18)O has exhibited a cumulative decrease of 0.7 parts per thousand, which reflects a combination of warming and more frequent El Nino events (precipitation) affecting the surface waters of this region. |
| Starting Page | 457 |
| Ending Page | 464 |
| Page Count | 8 |
| File Format | PDF HTM / HTML |
| DOI | 10.1029/1999PA900024 |
| Volume Number | 14 |
| Alternate Webpage(s) | https://scholar.harvard.edu/files/dschrag/files/18._reliability_of_coral_isotope_records_1999.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |