Yu, Zhaojie;
Ruan, Jiaoyang;
Song, Lina;
Yun, Kyung-Sook;
Tang, Xiaojie;
Colin, Christophe;
Wilson, David J;
... Wan, Shiming; + view all
(2024)
Late Pleistocene island weathering and precipitation in the Western Pacific Warm Pool.
npj Climate and Atmospheric Science
, 7
, Article 91. 10.1038/s41612-024-00642-0.
Preview |
Text
Yu et al 2024 NPJ Clim At Sci + supp.pdf - Published Version Download (4MB) | Preview |
Abstract
Deciphering past climate variability in the Western Pacific Warm Pool (WPWP), the Earth’s largest heat and moisture centre, is vital for understanding the global climate system. Nevertheless, its long-term evolution remains controversial, largely due to ambiguities in existing proxy interpretations and discrepancies between records. Here, we present a weathering and erosion reconstruction from the WPWP spanning the last 140,000 years, based on the mineralogy and geochemistry of a sediment core from offshore of northern New Guinea. The paleo-weathering reconstruction is consistent with the simulated precipitation evolution on nearby islands, thereby suggesting a close coupling between climate variability and island weathering in a tropical setting. In addition, our combined data-model interpretation of WPWP climate history shows many similarities to the East Asian Summer Monsoon (EASM) variability over orbital timescales. Overall, our study highlights the critical role of precession-paced interhemispheric energy redistribution, via the West Pacific meridional sea-surface pressure gradient, in linking orbital-scale WPWP climate and EASM variability.
| Type: | Article |
|---|---|
| Title: | Late Pleistocene island weathering and precipitation in the Western Pacific Warm Pool |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1038/s41612-024-00642-0 |
| Publisher version: | https://doi.org/10.1038/s41612-024-00642-0 |
| Language: | English |
| Additional information: | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Earth Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10191102 |
Archive Staff Only
 |
View Item |
