Scholarlink

<p>This review presents a targeted critical synthesis of East Asian dust-storm activity (EADA) across tectonic, orbital, sub-orbital, centennial, and decadal timescales (from 22&#xa0;Ma to the present). The synthesis is conducted via a structured literature evaluation of 100 peer-reviewed studies, with primary reliance on aeolian silt deposits from 15 key sections across Chinese Loess Plateau (CLP) and cross-validation with complementary marine sediment records (North Pacific) and ice-core data (Tibetan Plateau). Unlike primary research articles, this review focuses on reconciling conflicting interpretations of EADA proxies (e.g., grain-size as a qualitative indicator of activity trends) and identifying consensus on key driving mechanisms, rather than presenting new quantitative data. Key findings include: (1) EADA initiated at ~ 22&#xa0;Ma, with step-wise tectonic-scale intensification linked to global cooling and Tibetan Plateau uplift; (2) orbital-scale variability (20&#xa0;ka, 40&#xa0;ka, 100&#xa0;ka cycles) is coupled to glacial-interglacial cycles, while sub-orbital/centennial trends reflect the interplay of monsoon dynamics and minor human modulation; (3) modern EADA weakening is dominated by global warming-induced East Asian winter monsoon (EAWM) decline, with human activities exerting only secondary, localized effects. This review clarifies the methodological limitations of using grain size to infer EADA trends and identifies critical gaps in understanding the spatial variability of EADA and the interactions between climatic forcing factors. It provides a framework for future research to improve EADA prediction and inform mitigation strategies.</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

East Asian dust-storm activity: onset, trends, and mechanisms across timescales

  • 期刊论文

  • 发表日期：

    2026年2月11日

查看全文
  • Jin-Chang Li,
  • Ying-Hui Song,
  • Cai-Xia Zhang

摘要

This review presents a targeted critical synthesis of East Asian dust-storm activity (EADA) across tectonic, orbital, sub-orbital, centennial, and decadal timescales (from 22 Ma to the present). The synthesis is conducted via a structured literature evaluation of 100 peer-reviewed studies, with primary reliance on aeolian silt deposits from 15 key sections across Chinese Loess Plateau (CLP) and cross-validation with complementary marine sediment records (North Pacific) and ice-core data (Tibetan Plateau). Unlike primary research articles, this review focuses on reconciling conflicting interpretations of EADA proxies (e.g., grain-size as a qualitative indicator of activity trends) and identifying consensus on key driving mechanisms, rather than presenting new quantitative data. Key findings include: (1) EADA initiated at ~ 22 Ma, with step-wise tectonic-scale intensification linked to global cooling and Tibetan Plateau uplift; (2) orbital-scale variability (20 ka, 40 ka, 100 ka cycles) is coupled to glacial-interglacial cycles, while sub-orbital/centennial trends reflect the interplay of monsoon dynamics and minor human modulation; (3) modern EADA weakening is dominated by global warming-induced East Asian winter monsoon (EAWM) decline, with human activities exerting only secondary, localized effects. This review clarifies the methodological limitations of using grain size to infer EADA trends and identifies critical gaps in understanding the spatial variability of EADA and the interactions between climatic forcing factors. It provides a framework for future research to improve EADA prediction and inform mitigation strategies.