Scholarlink

<p>Despite numerous proxy-based reconstructions of climate since the Last Glacial Maximum, spatial hydroclimate variability in the Chinese monsoon region remains enigmatic. Here, we examine four stalagmites from northern China that collectively provide a continuous, highly resolved multi-proxy record over the past 25.5 ka. δ<sup>18</sup>O records capture large-scale variations in Asian summer monsoon (ASM) circulation, whereas trace element ratios and δ<sup>13</sup>C reflect regional precipitation variability; both follow precessional rhythms. Chinese stalagmite δ<sup>18</sup>O exhibits a zonal tripolar pattern, reflecting moisture sources and transport pathways. During Termination I, a meridional tripolar spatial precipitation pattern emerged, driven by El Niño–Southern Oscillation (ENSO) and mid-latitude westerlies dynamics. While precipitation peaked during the Middle Holocene, ASM circulation was strongest in the Early Holocene, a dipole hydrological pattern linked to residual Northern Hemisphere ice volume. A similar tripolar pattern re-emerged during the 4.2 ka event, suggesting a dominant role of ENSO in shaping this anomaly.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Spatial patterns of Asian summer monsoon precipitation in the Chinese monsoon region since the LGM

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月3日

查看全文
  • Mingyang Li,
  • Wei Jia,
  • Yan Yang,
  • Hai Cheng,
  • Jingyao Zhao,
  • Shaoneng He,
  • Guangxin Liu,
  • Haowen Fan,
  • Ting-Yong Li,
  • Lidan Lei,
  • Xiaofeng Ren,
  • Na Zhang,
  • Yinhuan Zhang,
  • Jingfeng Lin,
  • R. Lawrence Edwards

摘要

Despite numerous proxy-based reconstructions of climate since the Last Glacial Maximum, spatial hydroclimate variability in the Chinese monsoon region remains enigmatic. Here, we examine four stalagmites from northern China that collectively provide a continuous, highly resolved multi-proxy record over the past 25.5 ka. δ18O records capture large-scale variations in Asian summer monsoon (ASM) circulation, whereas trace element ratios and δ13C reflect regional precipitation variability; both follow precessional rhythms. Chinese stalagmite δ18O exhibits a zonal tripolar pattern, reflecting moisture sources and transport pathways. During Termination I, a meridional tripolar spatial precipitation pattern emerged, driven by El Niño–Southern Oscillation (ENSO) and mid-latitude westerlies dynamics. While precipitation peaked during the Middle Holocene, ASM circulation was strongest in the Early Holocene, a dipole hydrological pattern linked to residual Northern Hemisphere ice volume. A similar tripolar pattern re-emerged during the 4.2 ka event, suggesting a dominant role of ENSO in shaping this anomaly.