Climate of the Past
Climate of the Past
CP
Articles | Volume 22, issue 1
Articles | Volume 22, issue 1
https://doi.org/10.5194/cp-22-1-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-22-1-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 1
Research article
 | 
08 Jan 2026
Research article |  | 08 Jan 2026

The relative impacts of tropical Pacific teleconnections and local insolation on mid-Holocene precipitation over tropical South America

Minn Lin Wong and Xianfeng Wang

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Short summary
This study shows that tropical Pacific Ocean conditions shaped both precipitation and its isotopic signals in South America about 6,000 years ago. Using climate modelling and proxy records, we demonstrate how changes in tropical Pacific sea-surface temperatures, together with shifts in solar radiation, influenced past hydroclimate. These findings highlight the sensitivity of rainfall to Pacific Ocean variability, offering insights into how future climate change may affect rainfall patterns.
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