Decoupled Asian monsoon intensity and precipitation during glacial-interglacial transitions on the Chinese Loess Plateau

The discrepancies among the variations in global ice volume, cave stalagmite δ(18)O and rainfall reconstructed by cosmogenic (10)Be tremendously restrain our understanding of the evolution of the East Asian summer monsoon (EASM). Here, we present a 430-ka EASM mean annual precipitation record on the...

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Autores principales: Zheng, Yukun, Liu, Hongyan, Yang, Huan, Wang, Hongya, Zhao, Wenjie, Zhang, Zeyu, Huang, Miao, Liu, Weihang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9474459/
https://www.ncbi.nlm.nih.gov/pubmed/36104341
http://dx.doi.org/10.1038/s41467-022-33105-2
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author Zheng, Yukun
Liu, Hongyan
Yang, Huan
Wang, Hongya
Zhao, Wenjie
Zhang, Zeyu
Huang, Miao
Liu, Weihang
author_facet Zheng, Yukun
Liu, Hongyan
Yang, Huan
Wang, Hongya
Zhao, Wenjie
Zhang, Zeyu
Huang, Miao
Liu, Weihang
author_sort Zheng, Yukun
collection PubMed
description The discrepancies among the variations in global ice volume, cave stalagmite δ(18)O and rainfall reconstructed by cosmogenic (10)Be tremendously restrain our understanding of the evolution of the East Asian summer monsoon (EASM). Here, we present a 430-ka EASM mean annual precipitation record on the Chinese Loess Plateau obtained using branched glycerol dialkyl glycerol tetraethers based on a deep learning neural network; this rainfall record corresponds well with cave-derived δ(18)O data from southern China but differs from precipitation reconstructed by (10)Be. Both branched tetraether membrane lipids and cave δ(18)O may be affected by soil moisture and atmospheric temperature when glacial and interglacial conditions alternated and were thus decoupled from atmospheric precipitation; instead, they represent variations in the intensity of the EASM. Furthermore, we demonstrate that the brGDGT-DLNN method can significantly extend the temporal scale record of the EASM and is not restricted by geographic location compared with stalagmite records.
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spelling pubmed-94744592022-09-16 Decoupled Asian monsoon intensity and precipitation during glacial-interglacial transitions on the Chinese Loess Plateau Zheng, Yukun Liu, Hongyan Yang, Huan Wang, Hongya Zhao, Wenjie Zhang, Zeyu Huang, Miao Liu, Weihang Nat Commun Article The discrepancies among the variations in global ice volume, cave stalagmite δ(18)O and rainfall reconstructed by cosmogenic (10)Be tremendously restrain our understanding of the evolution of the East Asian summer monsoon (EASM). Here, we present a 430-ka EASM mean annual precipitation record on the Chinese Loess Plateau obtained using branched glycerol dialkyl glycerol tetraethers based on a deep learning neural network; this rainfall record corresponds well with cave-derived δ(18)O data from southern China but differs from precipitation reconstructed by (10)Be. Both branched tetraether membrane lipids and cave δ(18)O may be affected by soil moisture and atmospheric temperature when glacial and interglacial conditions alternated and were thus decoupled from atmospheric precipitation; instead, they represent variations in the intensity of the EASM. Furthermore, we demonstrate that the brGDGT-DLNN method can significantly extend the temporal scale record of the EASM and is not restricted by geographic location compared with stalagmite records. Nature Publishing Group UK 2022-09-14 /pmc/articles/PMC9474459/ /pubmed/36104341 http://dx.doi.org/10.1038/s41467-022-33105-2 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Zheng, Yukun
Liu, Hongyan
Yang, Huan
Wang, Hongya
Zhao, Wenjie
Zhang, Zeyu
Huang, Miao
Liu, Weihang
Decoupled Asian monsoon intensity and precipitation during glacial-interglacial transitions on the Chinese Loess Plateau
title Decoupled Asian monsoon intensity and precipitation during glacial-interglacial transitions on the Chinese Loess Plateau
title_full Decoupled Asian monsoon intensity and precipitation during glacial-interglacial transitions on the Chinese Loess Plateau
title_fullStr Decoupled Asian monsoon intensity and precipitation during glacial-interglacial transitions on the Chinese Loess Plateau
title_full_unstemmed Decoupled Asian monsoon intensity and precipitation during glacial-interglacial transitions on the Chinese Loess Plateau
title_short Decoupled Asian monsoon intensity and precipitation during glacial-interglacial transitions on the Chinese Loess Plateau
title_sort decoupled asian monsoon intensity and precipitation during glacial-interglacial transitions on the chinese loess plateau
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9474459/
https://www.ncbi.nlm.nih.gov/pubmed/36104341
http://dx.doi.org/10.1038/s41467-022-33105-2
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