Strong link between Asian summer monsoon and westerlies for the past 4750 years

Gao, Kui; Jiang, Xiuyang; He, Yixin; Hu, Hsun-Ming; Shen, Chuan‐Chou; Zhang, Xin

doi:10.1016/j.palaeo.2022.111329

Cited by 2 publications

(6 citation statements)

References 100 publications

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Section: Pca Results Of Eastern China δ 18 O S Recordsmentioning

confidence: 99%

“…The loadings of δ 18 O s series from NEC, CEC, and SEC are 0.97, 0.98, and 0.98, respectively, which demonstrate most common signals extracted from δ 18 O s variations. This common signal is often interpreted as an AM intensity proxy associated with insolation forcing (H. Cheng et al., 2016; Gao et al., 2023; Y. Wang et al., 2005; Y. Yang et al., 2010; Yuan et al., 2004). The AM record reveals significant strengthening after the YD event and a gradual weakening trend after the 8.2 ka BP (Figure 3a).…”

Section: Resultsmentioning

confidence: 99%

“…Yang et al, 2019), Furong (FR) (T. Li et al, 2021), Luoshui (LS) (Z. , Lianhua (LHC) (H.-L. Zhang et al, 2013), and Heshang (HS) (C. Hu et al, 2008). The caves in Southern China contain Dark (DC) (Gao et al, 2023), Shigao (SG) (Jiang et al, 2012), Yamen (YM) (Y. Yang et al, 2010), Dongge (DG) (Dykoski et al, 2005;Y.…”

Section: Regional-scale δ 18 O S Integrationmentioning

confidence: 99%

“…. The caves in Southern China contain Dark (DC)(Gao et al, 2023), Shigao (SG)(Jiang et al, 2012), Yamen (YM) (Y Yang et al, 2010),. Dongge (DG)(Dykoski et al, 2005;Y.…”

mentioning

confidence: 99%

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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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Section: Pca Results Of Eastern China δ 18 O S Recordsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Regional-scale δ 18 O S Integrationmentioning

confidence: 99%

“…. The caves in Southern China contain Dark (DC)(Gao et al, 2023), Shigao (SG)(Jiang et al, 2012), Yamen (YM) (Y Yang et al, 2010),. Dongge (DG)(Dykoski et al, 2005;Y.…”

mentioning

confidence: 99%

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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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“…Generally speaking, the AM and westerlies show different climate evolutionary patterns on long-term timescales as a result of alternative driving mechanisms (Nagashima et al, 2007; Chen et al, 2019). The monsoon climate pattern in East Asia manifesting as the humid Early Holocene (EH) and drier LH is out of phase with the typical westerlies-dominated climate in arid Central Asia, which is characterized by dry EH and wet LH (Chen et al, 2008; An et al, 2012; Wang and Feng, 2013; Li et al, 2021; Gao et al, 2023). Many studies in recent years suggested that the interaction between the westerlies and AM can be viewed as an explanation for the spatiotemporal difference in the precipitation pattern in the Asian middle latitudes (Nagashima et al, 2011; Chiang et al, 2015; Zhang et al, 2018; Li et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Middle to Late Holocene lake evolution and its links with westerlies and Asian monsoon in the middle part of the Hexi Corridor, NW China

Peng

Zhou

et al. 2023

Quat. res.

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The interpretation and understanding of the relationship between Middle to Late Holocene climate change in monsoon margins of northwest China with the westerlies and Asian monsoon (AM) remain controversial. Here we present a new multi-proxy sedimentary dataset from the Heihe River basin in the middle part of the Hexi Corridor on the northern margin of the Qinghai-Tibet Plateau (QTP), which is a sensitive zone for the interaction between the westerlies and AM. Fluctuations in grain size, δ13Corg, δ18O, magnetic susceptibility, total organic carbon, total nitrogen, and C/N ratio document regional lake and climate evolution since 5334 cal yr BP. Results show that climate conditions on the millennial timescale are humid in the late Middle Holocene (MH) and dry to wet in the Late Holocene (LH). Combined with the multi-model ensemble simulation from PMIP3-CMIP5, high lake levels and wetter climate in the late MH are closely linked to the strengthening Asian summer monsoon. Simultaneously, the slight wetting trend since the late LH may be the superimposing effect of enhanced westerlies and the weakening Asian winter monsoon. These findings can provide insights into the interpretation of the interaction between the westerlies and AM during the Holocene in East Asia.

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Strong link between Asian summer monsoon and westerlies for the past 4750 years

Cited by 2 publications

References 100 publications

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

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

Middle to Late Holocene lake evolution and its links with westerlies and Asian monsoon in the middle part of the Hexi Corridor, NW China

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Strong link between Asian summer monsoon and westerlies for the past 4750 years

Cited by 2 publications

References 100 publications

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

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

Middle to Late Holocene lake evolution and its links with westerlies and Asian monsoon in the middle part of the Hexi Corridor, NW China

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Product

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

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