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3500 yr record of centennial-scale climate variability from the Western Pacific Warm Pool
| Content Provider | Semantic Scholar |
|---|---|
| Author | Langton, Sebastian Linsley, Braddock K. Robinson, Rebecca S. Rosenthal, Yair Oppo, Delia W. Eglinton, Timothy I. Howe, Stephen S. Djajadihardja, Yusuf Surachman Syamsudin, Fadli |
| Copyright Year | 2008 |
| Abstract | We use geochemical data from a sediment core in the shallowsilled and intermittently dysoxic Kau Bay in Halmahera (Indo nesia, lat 1°N, long 127.5°E) to reconstruct century-scale climate variability within the Western Pacifi c Warm Pool over the past ~3500 yr. Downcore variations in bulk sedimentary δ 15 N appear to refl ect century-scale variability in basin ventilation, attributed to changes in oceanographic conditions related to century-scale fl uctuations in El Nino Southern Oscillation (ENSO). We infer an increase in century-scale El Nino activity beginning ca. 1700 yr B.P. with peaks in El Nino activity ca. 1500 yr B.P., 1150 yr B.P., and ca. 700 yr B.P. The Kau Bay results suggest that there was diminished ENSO amplitude or frequency, or a departure from El Nino–like conditions during the Medieval Warm Period, and distinctive, but steadily decreasing, El Nino activity during and after the Little Ice Age. |
| Starting Page | 795 |
| Ending Page | 798 |
| Page Count | 4 |
| File Format | PDF HTM / HTML |
| DOI | 10.1130/G24926A.1 |
| Volume Number | 36 |
| Alternate Webpage(s) | http://www.atmos.albany.edu/daes/faculty/howe/Langton%20et%20al.%20(2008).pdf |
| Alternate Webpage(s) | http://www.atmos.albany.edu/geology/webpages/Langton_et_al_Geology08.pdf |
| Alternate Webpage(s) | https://marine.rutgers.edu/pubs/private/Langton08_KauBay.pdf |
| Alternate Webpage(s) | https://doi.org/10.1130/G24926A.1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
