The East Asian summer monsoon variability over the last 145 years inferred from the Shihua Cave record, North China

Abstract The precipitation variability associated with the East Asian summer monsoon (EASM) has profound societal implications. Here, we use precisely dated and seasonally-resolved stalagmite oxygen isotope (δ18O) records from Shihua Cave, North China to reconstruct the EASM variability over the las...

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Autores principales:	Xianglei Li, Hai Cheng, Liangcheng Tan, Fengmei Ban, Ashish Sinha, Wuhui Duan, Hanying Li, Haiwei Zhang, Youfeng Ning, Gayatri Kathayat, R. Lawrence Edwards
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/534ccb765338407d9b2681aadd186f97
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spelling	oai:doaj.org-article:534ccb765338407d9b2681aadd186f972021-12-02T12:32:03ZThe East Asian summer monsoon variability over the last 145 years inferred from the Shihua Cave record, North China10.1038/s41598-017-07251-32045-2322https://doaj.org/article/534ccb765338407d9b2681aadd186f972017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-07251-3https://doaj.org/toc/2045-2322Abstract The precipitation variability associated with the East Asian summer monsoon (EASM) has profound societal implications. Here, we use precisely dated and seasonally-resolved stalagmite oxygen isotope (δ18O) records from Shihua Cave, North China to reconstruct the EASM variability over the last 145 years. Our record shows a remarkable weakening of the EASM strength since the 1880s, which may be causally linked to the warming of the tropical Pacific and Indian Oceans. The δ18O record also exhibits a significant ~30-year periodicity, consistent with the instrumental, historical and proxy-based rainfall records from North China, plausibly driven by the Pacific Decadal Oscillation (PDO). Together, these observations imply that ~30-year periodicity is a persistent feature of the EASM, which remains significant with or without anthropogenic forcing. If indeed, the EASM rainfall in North China might decline significantly in the near future, which may affect millions of people in this region.Xianglei LiHai ChengLiangcheng TanFengmei BanAshish SinhaWuhui DuanHanying LiHaiwei ZhangYoufeng NingGayatri KathayatR. Lawrence EdwardsNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xianglei Li Hai Cheng Liangcheng Tan Fengmei Ban Ashish Sinha Wuhui Duan Hanying Li Haiwei Zhang Youfeng Ning Gayatri Kathayat R. Lawrence Edwards The East Asian summer monsoon variability over the last 145 years inferred from the Shihua Cave record, North China
description	Abstract The precipitation variability associated with the East Asian summer monsoon (EASM) has profound societal implications. Here, we use precisely dated and seasonally-resolved stalagmite oxygen isotope (δ18O) records from Shihua Cave, North China to reconstruct the EASM variability over the last 145 years. Our record shows a remarkable weakening of the EASM strength since the 1880s, which may be causally linked to the warming of the tropical Pacific and Indian Oceans. The δ18O record also exhibits a significant ~30-year periodicity, consistent with the instrumental, historical and proxy-based rainfall records from North China, plausibly driven by the Pacific Decadal Oscillation (PDO). Together, these observations imply that ~30-year periodicity is a persistent feature of the EASM, which remains significant with or without anthropogenic forcing. If indeed, the EASM rainfall in North China might decline significantly in the near future, which may affect millions of people in this region.
format	article
author	Xianglei Li Hai Cheng Liangcheng Tan Fengmei Ban Ashish Sinha Wuhui Duan Hanying Li Haiwei Zhang Youfeng Ning Gayatri Kathayat R. Lawrence Edwards
author_facet	Xianglei Li Hai Cheng Liangcheng Tan Fengmei Ban Ashish Sinha Wuhui Duan Hanying Li Haiwei Zhang Youfeng Ning Gayatri Kathayat R. Lawrence Edwards
author_sort	Xianglei Li
title	The East Asian summer monsoon variability over the last 145 years inferred from the Shihua Cave record, North China
title_short	The East Asian summer monsoon variability over the last 145 years inferred from the Shihua Cave record, North China
title_full	The East Asian summer monsoon variability over the last 145 years inferred from the Shihua Cave record, North China
title_fullStr	The East Asian summer monsoon variability over the last 145 years inferred from the Shihua Cave record, North China
title_full_unstemmed	The East Asian summer monsoon variability over the last 145 years inferred from the Shihua Cave record, North China
title_sort	east asian summer monsoon variability over the last 145 years inferred from the shihua cave record, north china
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/534ccb765338407d9b2681aadd186f97
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The East Asian summer monsoon variability over the last 145 years inferred from the Shihua Cave record, North China

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