Holocene East Asian winter monsoon changes reconstructed by sensitive grain size of sediments from Chinese coastal seas: A review

Tu, Luyao; Zhou, Xin; Cheng, Weixin; Liu, Xiaoyan; Yang, Wenqing; Wang, Yuhong

doi:10.1016/j.quaint.2016.03.024

Cited by 27 publications

(12 citation statements)

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“…This opposite magnetic mineral content and grain size response to cold stages (e.g., H1 and YD) is possibly due to different sediment migration patterns over short and long distances before and after ∼15 kyr B.P., respectively. Coarse grains deposited during intensified EAWM events tend to be restricted close to coastlines (Tu et al, ), which is consistent with the location of PC338 during the lowstand. In contrast, during the YD, most magnetic minerals were deposited along the coast, so fewer magnetic minerals were transported to the core site.…”

Section: Discussionmentioning

confidence: 99%

Influence of Sea Level Change and Centennial East Asian Monsoon Variations on Northern South China Sea Sediments Over the Past 36 kyr

Ouyang

Roberts

et al. 2018

Geochem Geophys Geosyst

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South China Sea (SCS) sediments can provide important paleoclimate records because of their generally high deposition rates and strong regional influence of East Asian summer monsoon (EASM) variations. However, interpretation of sedimentary records from the northwestern SCS slope is complicated because sedimentation is sensitive to sea level and provenance variations. We seek to develop a paleoclimatic record of SCS sediments by analyzing sediment magnetic properties over the past ∼36 kyr from core PC338. The dominant magnetic minerals are magnetite and hematite in most parts of the core. The hematite concentration increased profoundly over the ∼15–32 kyr B.P. period when sea level was lower than −90 m below the present level. This suggests that Red River inputs were enhanced significantly in this period. Moreover, increased coarse magnetite contents were recorded in association with an enhanced East Asian winter monsoon (EAWM) during the Last Glacial Maximum and Heinrich event 1. Low‐field and frequency‐dependent magnetic susceptibility variations were coeval with EASM‐controlled climate change recorded in South China and the SCS over the past 15 kyr, probably because regional terrestrial weathering and erosion of iron‐bearing minerals, and their transportation are dominated by climate. Rhythmic coarsening of Holocene magnetic mineral concentrations coincided with global cooling events, which indicates that core PC338 also contains signals of enhanced EAWM variations. The study demonstrates that magnetic proxies are indicative of sediment supply and deposition variations on the SCS continental slope that are useful for understanding the effects of sea level and climate change on SCS sediments.

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Section: Discussionmentioning

confidence: 99%

Influence of Sea Level Change and Centennial East Asian Monsoon Variations on Northern South China Sea Sediments Over the Past 36 kyr

Ouyang

Roberts

et al. 2018

Geochem Geophys Geosyst

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“…However, for the western North Pacific, conflicting results are found in the marine sediments from northern Japan (Sagawa et al, 2014) and the southern Okinawa Trough (Li et al, 2018). In addition, based on nine mean grain size records of muddy sediments from Chinese coastal seas dating back to 3,000 years ago, Tu et al (2017) found large discrepancies in EAWM intensity among different records. The researchers further noted that those located far from the river estuary mostly showed weak EAWM strength during the MCA and enhanced strength during the LIA.…”

Section: Evaluation Of the Pmip3 Models And Change In The Eawmmentioning

confidence: 99%

“…Moreover, spatial and temporal discrepancies are evident in the EAWM reconstructions during the last millennium. This is due to sparse suitable archives and proxies (Sagawa et al, 2014); age uncertainties; and other influencing factors such as sedimentary environments, riverine runoff and storms (Tu et al, 2017). All the above makes the conclusion less trustworthy.…”

Section: Evaluation Of the Pmip3 Models And Change In The Eawmmentioning

confidence: 99%

“…By comparing the EASM evolution with other proxy data, it is further proposed that external forcing factors such as solar activity (Wang et al, 2005;Zhang et al, 2008;Li et al, 2017) and internal variability modes such as the Asia-Pacific Oscillation (Fang et al, 2014) and Pacific Decadal Oscillation (Lee and Park, 2015;Zhao et al, 2015) may affect the EASM variation. On the other hand, the sequences of the Holocene EAWM are less well established than those of the EASM because of unsuitable archives and proxies (Sagawa et al, 2014), and discrepancies are evident among different reconstruction results (Xiao et al, 2006;Liu et al, 2009;Sagawa et al, 2014;Tu et al, 2017;Li et al, 2018). It is also implied that changes in the Holocene EAWM were likely forced by the reduction in solar irradiance through changes in the oceanic-atmospheric circulation patterns on the centennial scale (Sagawa et al, 2014), and Arctic Sea ice may have modulated the relationship between the EAWM and the Atlantic Oscillation (Li et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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A multi‐model analysis of the East Asian monsoon changes in the Medieval Climate Anomaly and Little Ice Age

Yang

Hua

2020

Intl Journal of Climatology

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Using nine climate model simulations from the Paleoclimate Modelling Intercomparison Project Phase 3, the changes in the East Asian summer and winter monsoon, together with their associated atmospheric circulations in the Medieval Climate Anomaly (MCA) and Little Ice Age (LIA), were investigated in this study. The East Asian summer monsoon strengthened (weakened) as a consequence of the increased (decreased) land-sea thermal contrast between the East Asian continent and the adjacent western North Pacific and South China Sea in the MCA (LIA). The East Asian winter monsoon (EAWM) changes varied across models, and differences were shown between the low latitudes and midto-high latitudes of the EAWM region. In the northern area, the EAWM intensified slightly due to a reinforced Aleutian Low during the MCA and decreased slightly because of the suppression of the Siberian High and the weakening and northward shift of the Aleutian Low during the LIA. In contrast, there are large inconsistencies among models during both periods in the southern EAWM region. Our results imply that model improvement is needed to reproduce the complex interacting processes over the low latitudes of East Asia.

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“…In contrast, the delivery of lignin in the SYS is mainly influenced by the Yellow Sea Warm Current (YSWC), which is not only driven by the EAWM winds but also greatly affected by the Kuroshio Current (Hao et al, 2017). Moreover, grain-size characteristics in sediments from some muddy areas can be influenced by riverine runoff and storms as well as coastal currents (Tu et al, 2017; Tian et al, 2019). Thus, how the SYS responds to the EAWM variations and whether the sedimentary strata in the SYS record the changes in the EASM requires further study using high-resolution continuous sedimentary records.…”

Section: Introductionmentioning

confidence: 99%

In-phase and out-of-phase behavior of the East Asian summer and winter monsoons recorded in the South Yellow Sea sediment over the past 9.5 ka

Wang

et al. 2020

Quat. res.

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The variability of the East Asian monsoon (EAM) during the Holocene exhibits significant regional response, and its evolution needs further discussion. A well-dated, high-resolution sea-surface temperature record based on long-chain unsaturated alkenones, grain-size data, and clay mineral assemblages from the South Yellow Sea sediment is presented to investigate the sedimentary provenance and reconstruct the EAM over the past 9.5 ka. The results show that the sediments are most likely supplied by the Huanghe. The evolution of the East Asian summer monsoon (EASM) can be divided into three periods: strong and relatively stable conditions during 9.5–7.0 ka, weakened conditions during 7.0–1.5 ka, and strengthened conditions during 1.5–0 ka. The East Asian winter monsoon (EAWM) has experienced five periods: weakened conditions during 9.5–6.7 ka, weak and relatively stable conditions during 6.7–5.6 ka, strong and relatively stable conditions during 5.6–2.6 ka, strengthened conditions during 2.6–1.5 ka, and weak and stable conditions during 1.5–0 ka. Moreover, in-phase correlation was found between the EAWM and EASM at the orbital time scale in response to orbital-driven solar insolation, but out-of-phase correlation at a centennial time scale is predominantly associated with solar activity.

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Holocene East Asian winter monsoon changes reconstructed by sensitive grain size of sediments from Chinese coastal seas: A review

Cited by 27 publications

References 60 publications

Influence of Sea Level Change and Centennial East Asian Monsoon Variations on Northern South China Sea Sediments Over the Past 36 kyr

Influence of Sea Level Change and Centennial East Asian Monsoon Variations on Northern South China Sea Sediments Over the Past 36 kyr

A multi‐model analysis of the East Asian monsoon changes in the Medieval Climate Anomaly and Little Ice Age

In-phase and out-of-phase behavior of the East Asian summer and winter monsoons recorded in the South Yellow Sea sediment over the past 9.5 ka

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