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An ~15,000-Year Record of El Niño-Driven Alluviation in Southwestern Ecuador
Abstract
Debris flows have deposited inorganic laminae in an alpine lake that is 75 kilometers east of the Pacific Ocean, in Ecuador. These storm-induced events were dated by radiocarbon, and the age of laminae that are less than 200 years old matches the historic record of El Niño events. From about 15,000 to about 7000 calendar years before the present, the periodicity of clastic deposition is greater than or equal to 15 years; thereafter, there is a progressive increase in frequency to periodicities of 2 to 8.5 years. This is the modern El Niño periodicity, which was established about 5000 calendar years before the present. This may reflect the onset of a steeper zonal sea surface temperature gradient, which was driven by enhanced trade winds.
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Citations
Cited by
Moy, C. M., Seltzer, G. O., Rodbell, D. T., & Anderson, D. M. (2002) · Nature · doi:10.1038/nature01194 · Cited by 1,595
Self-citationClimate impacts of the El Niño–Southern Oscillation on South America
Cai, W., McPhaden, M. J., Grimm, A. M., Rodrigues, R. R., Taschetto, A. S., Garreaud, R. D., Dewitte, B., Poveda, G., Ham, Y.-G., Santoso, A., et al. (2020) · Nature Reviews Earth & Environment · doi:10.1038/s43017-020-0040-3 · Cited by 782
Holocene changes in eastern tropical Pacific climate inferred from a Galápagos lake sediment record
Conroy, J. L., Overpeck, J. T., Cole, J. E., Shanahan, T. M., & Steinitz-Kannan, M. (2008) · Quaternary Science Reviews · doi:10.1016/j.quascirev.2008.02.015 · Cited by 712
Changing El Niño–Southern Oscillation in a warming climate
Cai, W., Santoso, A., Collins, M., Dewitte, B., Karamperidou, C., Kug, J.-S., Lengaigne, M., McPhaden, M. J., Stuecker, M. F., Taschetto, A. S., et al. (2021) · Nature Reviews Earth & Environment · doi:10.1038/s43017-021-00199-z · Cited by 702
Suppression of El Niño during the Mid‐Holocene by changes in the Earth's orbit
Clement, A. C., Seager, R., & Cane, M. A. (2000) · Paleoceanography · doi:10.1029/1999pa000466 · Cited by 405
Metadata
- Authors
- Rodbell, D. T., Seltzer, G. O., Anderson, D. M., Abbott, M. B., Enfield, D. B., & Newman, J. H.
- Venue
- Science
- Published
- 1999-01-22
- Volume
- 283
- Issue
- 5401
- Pages
- 516-520
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2067541303
- Cited by
- 711
- References
- 0
- FWCI
- 23.24
- Type
- journal article
- Language
- en
- Open access
- closed
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- Rodbell, D. T., Seltzer, G. O., Anderson, D. M., Abbott, M. B., Enfield, D. B., & Newman, J. H. (1999). An ~15,000-Year Record of El Niño-Driven Alluviation in Southwestern Ecuador. Science. https://doi.org/10.1126/science.283.5401.516
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