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Southward Migration of the Intertropical Convergence Zone Through the Holocene

Haug, Gerald H., Hughen, Konrad A., Sigman, Daniel M., Peterson, Larry C., Röhl, Ursula·2001·Science

Abstract

Titanium and iron concentration data from the anoxic Cariaco Basin, off the Venezuelan coast, can be used to infer variations in the hydrological cycle over northern South America during the past 14,000 years with subdecadal resolution. Following a dry Younger Dryas, a period of increased precipitation and riverine discharge occurred during the Holocene “thermal maximum.” Since ∼5400 years ago, a trend toward drier conditions is evident from the data, with high-amplitude fluctuations and precipitation minima during the time interval 3800 to 2800 years ago and during the “Little Ice Age.” These regional changes in precipitation are best explained by shifts in the mean latitude of the Atlantic Intertropical Convergence Zone (ITCZ), potentially driven by Pacific-based climate variability. The Cariaco Basin record exhibits strong correlations with climate records from distant regions, including the high-latitude Northern Hemisphere, providing evidence for global teleconnections among regional climates.

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Crossref · 10.1126/science.1059725

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Metadata

Authors
Haug, G. H., Hughen, K. A., Sigman, D. M., Peterson, L. C., & Röhl, U.
Venue
Science
Published
2001-08-17
Volume
293
Issue
5533
Pages
1304-1308
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2124757012
Cited by
2,402
References
2
FWCI
23.47
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Southward Migration of the Intertropical Convergence Zone Through the Holocene. https://app.cochat.ai/papers/10.1126/science.1059725
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Haug, G. H., Hughen, K. A., Sigman, D. M., Peterson, L. C., & Röhl, U. (2001). Southward Migration of the Intertropical Convergence Zone Through the Holocene. Science. https://doi.org/10.1126/science.1059725

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.