Sixty-year quasi-period of the Asian monsoon around the Last Interglacial derived from an annually resolved stalagmite δ18O record

Wang, Zhenjun; Chen, Shitao; Wang, Yongjin; Cheng, Hai; Liang, Yijia; Yang, Shaohua; Zhang, Zhenqiu; Zhou, Xueqin; Wang, Meng

doi:10.1016/j.palaeo.2019.109545

Cited by 5 publications

(2 citation statements)

References 55 publications

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“…Therefore, stalagmites are decent geological candidates for reconstructing annually resolved monsoon records and further understanding interactions of climate subsystems. Previous studies of the annually laminated stalagmites from the monsoonal region of China show that the approximate 60-year periodicity is an inherent characteristic of the Asian monsoon during the interglacial periods and the Late Holocene, and such climatic instability of the Asian summer monsoon (ASM) can affect vegetation, biological productivity, and karst systems [21][22][23]. Apart from the interglacial conditions, there are also decadal monsoonal variabilities found during the Last Glacial Maximum, according to a record based on an annually banded stalagmite from Hulu Cave, Nanjing [24].…”

Section: Introductionmentioning

confidence: 99%

Multidecadal Monsoon Variations during the Early Last Deglaciation Revealed by Speleothem Record from Southwestern China

Liang,

Zhang,

et al. 2024

Minerals

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The Asian monsoon (AM) has direct and profound effects on the livelihoods of residents in South Asia and East Asia. Modern observations have shown multi-decadal alternations of flood and drought periods in these regions, likely influenced by climatic processes such as the Atlantic Multidecadal Oscillation and the Pacific Decadal Oscillation. However, our understanding of the multi-decadal variability of the AM under different climatic conditions remains uncertain. In this study, we collected an annually laminated and 780-mm stalagmite (sample number: BJ7) from Binjia (BJ) Cave in southwestern China, which is deeply influenced by the Asian monsoon system. Based on this sample, we established 6-year resolution and multi-proxy records for the Asian summer monsoon (ASM) variabilities during the early last termination, spanning from 18.2 to 16.1 ka BP. Measurements of five pairs of uranium and thorium solutions for 230Th dating were conducted using a multi-collector inductively coupled plasma mass spectrometer (MC-ICP- MS), and 374 pairs of stable isotope (δ18O and δ13C) analyses were run on a Kiel Carbonate Device connected with Finnigan MAT-253 at Nanjing Normal University. The chronology for this sample was established by annual layer counting anchored with 230Th dating results. Our BJ7 δ18O record replicates well with other Chinese δ18O records on the general trend, all of which are superimposed by frequent multidecadal-scale fluctuations at approximately 60 years periodicity. Inspection of the 60-year band in BJ7 δ18O and δ13C records and results of the cross-wavelet analysis indicate coherent changes in the ASM and biomass production/karst processes during most of the studied period. In addition, the 60-year band of BJ7 and NGRIP δ18O records are consistent, implying the impacts of the high-latitude North Atlantic or Atlantic Multidecadal Oscillation on the ASM. Our study suggests that the 60-year variability should be an intrinsic feature of the climate system regardless of glacial or interglacial backgrounds.

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Section: Introductionmentioning

confidence: 99%

Multidecadal Monsoon Variations during the Early Last Deglaciation Revealed by Speleothem Record from Southwestern China

Liang,

Zhang,

et al. 2024

Minerals

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“…Here we present data from Yongxing Cave, China, to demonstrate an analogous feature of millennial-scale changes during the last glacial period. Previous publications from Yongxing Cave, including detailed information on the DO-AIM events imprinted on East Asian summer monsoon (EASM) 30 , decadal-to-centennial-scale changes during the last interglacial 33 and annually-resolved data across the MIS11 34 , highlight that speleothem records from this cave are optimal to reconstruct high-resolution Asian monsoon changes. More importantly, our record has comparable counterparts with those in Antarctic/ Greenland ice core records on the millennial to sub-centennial timescales, indicating a global feature imprinted in the monsoon changes.…”

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Asian monsoon intensity coupled to Antarctic climate during Dansgaard–Oeschger 8 and Heinrich 4 glacial intervals

Liang

Chen

Wang

et al. 2022

Commun Earth Environ

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The transition from glacial to interglacial periods has been hypothesized to be linked to millennial-scale changes in oceanic/atmospheric circulation, but the relationships between these phenomena remain poorly constrained. Here we present a speleothem oxygen isotope record from Yongxing Cave, China, spanning 40.9 to 33.1 ka and compare this to existing Antarctic proxy records. We find that decadal-to-centennial rapid shifts in the Asian summer monsoon, Antarctic temperature, atmospheric methane and carbon dioxide are all coupled together during Dansgaard–Oeschger cycles, which may suggest an important role of the Intertropical Convergence Zone and Southern Ocean in driving the global greenhouse gas changes. Analogous to millennial-scale variations in trend, amplitude and internal sub-centennial-scale structures during Dansgaard–Oeschger 8 and Heinrich Stadial 4, the Younger Dryas and Heinrich Stadial 1 during the last ice termination provided critical positive feedbacks to changes in terrestrial vegetation and northern ice volume, and may have contributed to glacial to interglacial transition.

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An annually laminated stalagmite from the eastern Qinghai-Tibetan Plateau provides evidence of climate instability during the early MIS5e in the Asian summer monsoon

Gao

Zhang

Cheng

et al. 2023

Sci. China Earth Sci.

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Sixty-year quasi-period of the Asian monsoon around the Last Interglacial derived from an annually resolved stalagmite δ18O record

Cited by 5 publications

References 55 publications

Multidecadal Monsoon Variations during the Early Last Deglaciation Revealed by Speleothem Record from Southwestern China

Multidecadal Monsoon Variations during the Early Last Deglaciation Revealed by Speleothem Record from Southwestern China

Asian monsoon intensity coupled to Antarctic climate during Dansgaard–Oeschger 8 and Heinrich 4 glacial intervals

An annually laminated stalagmite from the eastern Qinghai-Tibetan Plateau provides evidence of climate instability during the early MIS5e in the Asian summer monsoon

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