Stalagmite-based long-term and multi-centennial hydroclimatic variations in southwestern China during the Holocene and relations to global climate change

Duan, Fucai; Zhang, Zhenqiu; Liu, Dianbing; Chen, Jianshun; Shao, Qingfeng; Wang, Yongjin

doi:10.1016/j.quascirev.2023.108327

Quaternary Science Reviews

2023

DOI: 10.1016/j.quascirev.2023.108327

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Stalagmite-based long-term and multi-centennial hydroclimatic variations in southwestern China during the Holocene and relations to global climate change

Fucai Duan,

Zhenqiu Zhang,

Dianbing Liu

et al.

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2024

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Cited by 2 publications

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Hydroclimate variability over the past 4730 years based on multi-proxy stalagmite records from southwest China

Gao,

He,

Yang

et al. 2024

Palaeogeography, Palaeoclimatology, Palaeoecology

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Hydroclimate variability over the past 4730 years based on multi-proxy stalagmite records from southwest China

Gao,

He,

Yang

et al. 2024

Palaeogeography, Palaeoclimatology, Palaeoecology

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Holocene Variability of the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation Inferred From Chinese Speleothem δ¹⁸O Records

Fan,

Hu,

Liu

et al. 2024

Paleoceanog and Paleoclimatol

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The current reconstructions of the Atlantic Multidecadal Oscillation (AMO) and Pacific Decadal Oscillation (PDO) primarily rely on marine sediment proxies. However, the limited resolution of these records makes it difficult to precisely understand the short‐term dynamics of the PDO and AMO, and consequently, their influence on global climate. This study unveils two new Holocene reconstructions of AMO and PDO derived from a large‐scale compilation of speleothem isotope records (δ18Os) from Chinese monsoon region, in which spatial patterns of summer rainfall are generally accepted as good indicators of internal variability. Principal component analysis applied to Chinese δ18Os records identifies the first principal component as representative of Holocene Asian monsoon (AM) variation. This data‐driven approach reveals a significant shift in hydroclimatic conditions after 8.2 ka, potentially providing valuable insights into the underlying forcing mechanisms driving these changes. The remanent components, which show spatial rainfall patterns, are effectively validated through independent records of AMO and PDO derived from the previous paleo‐proxy based reconstructions and model simulations. The present reconstructions suggest a significantly enhanced stability of the AMO and PDO in the middle Holocene, which may explain the concurrent more stable and optimum climate observed in the AM region. These findings also imply that the Holocene AM intensity recorded in Chinese cave records is largely controlled by external forcing, whereas the regionally heterogenous rainfall is regulated by internal variability. The successful attempt on the Holocene AMO and PDO reconstructions indicates an effective isolation between different modes of climate variability from paleoclimate records.

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Stalagmite-based long-term and multi-centennial hydroclimatic variations in southwestern China during the Holocene and relations to global climate change

Cited by 2 publications

References 92 publications

Hydroclimate variability over the past 4730 years based on multi-proxy stalagmite records from southwest China

Hydroclimate variability over the past 4730 years based on multi-proxy stalagmite records from southwest China

Holocene Variability of the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation Inferred From Chinese Speleothem δ¹⁸O Records

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Stalagmite-based long-term and multi-centennial hydroclimatic variations in southwestern China during the Holocene and relations to global climate change

Cited by 2 publications

References 92 publications

Hydroclimate variability over the past 4730 years based on multi-proxy stalagmite records from southwest China

Hydroclimate variability over the past 4730 years based on multi-proxy stalagmite records from southwest China

Holocene Variability of the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation Inferred From Chinese Speleothem δ18O Records

Contact Info

Product

Resources

About

Holocene Variability of the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation Inferred From Chinese Speleothem δ¹⁸O Records