近日，同济大学贾国东团队报道了华南沿海全新世降水同位素记录中明显的台风登陆印记。相关论文于2026年2月2日发表在《地质学》杂志上。

台风引发的强降雨对沿海社会经济影响深远，但其未来预测仍具挑战。历史台风记录对解析台风活动变化机制至关重要，却鲜有覆盖整个全新世时期。

鉴于台风降水具有显著的负同位素特征，研究组通过分析华南沿海湖相沉积岩芯中叶蜡正构烷烃氢同位素组成（δD），建立全新世降水同位素记录，以评估其对古台风活动的指示潜力。重建的降水δD（δD_p）值在9.2~3.5千年期间（1千年=距今1000日历年）偏正，在11.2~9.2千年和3.5~0千年期间偏负，呈现"负-正-负"的振荡格局。

在此背景下叠加了与北大西洋邦德事件同步的千年尺度负偏异常。不同于典型的东亚季风石笋δ¹⁸O记录，研究组证实该δD_p记录反映了千年及多千年尺度的区域台风活动。推测大西洋经向翻转环流减弱与厄尔尼诺振幅增大的协同作用，可能分别导致全新世早晚期及邦德事件期间台风活动增强，从而使华南沿海地区δD_p值更加偏负。

附：英文原文

Title: Pronounced typhoon landfall imprints in the Holocene precipitation isotope record from coastal South China

Author: Jiantao Cao, Yanming Ruan, Liping Tian, Fajin Chen, Chao Huang, Xiaobo Jin, Zhiguo Rao, Guodong Jia

Issue&Volume: 2026-02-02

Abstract: Typhoon-induced heavy rainfall profoundly affects coastal society and economies, yet predicting its future remains challenging. Historical typhoon records are crucial for deciphering the mechanisms behind typhoon variability, but they seldom span the entire Holocene Epoch. Given the distinctively negative isotopic signatures of typhoon precipitation, this study examined a Holocene precipitation isotope record derived from the hydrogen isotope composition (δD) of leaf-wax n-alkanes in a lake sediment core from the South China coast to assess its potential for reflecting past typhoon activity. The reconstructed precipitation δD (δDp) values were less negative during 9.23.5 ka (1 ka = 1000 calendar yr B.P.) and more negative during 11.29.2 ka and 3.50 ka, showing an oscillating “negative-positive-negative” pattern. Superimposed on this pattern were millennial-scale negative excursions coinciding with North Atlantic Bond events. Unlike typical East Asian monsoon stalagmite δ18O records, we demonstrate that our δDp record reflects regional typhoon activity at millennial and multi-millennial time scales. It is likely that a weaker Atlantic Meridional Overturning Circulation and larger El Nio amplitude synergistically resulted in stronger typhoon activity and thus more negative δDp values in coastal South China during the early and late Holocene, respectively, as well as during Bond events.

DOI: 10.1130/G53699.1

Source: https://pubs.geoscienceworld.org/gsa/geology/article-abstract/doi/10.1130/G53699.1/725503/Pronounced-typhoon-landfall-imprints-in-theredirectedFrom=fulltext