Amplified temperature sensitivity of extreme precipitation events following heat stress

IF 5.4 2区医学 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Biomaterials Science & Engineering Pub Date : 2024-10-10 DOI:10.1038/s41612-024-00796-x

Zhiling Zhou, Liping Zhang, Qin Zhang, Hui Cao, Hairong Zhang, Benjun Jia, Lina Liu, Zhenyu Tang, Jie Chen

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Abstract

This study investigates global extreme precipitation events (EPEs) during warm seasons, with a particular focus on EPEs preceded by extreme heat stress (EPE-Hs) and a comparative analysis with those not (EPE-NHs). Using reanalysis product and Earth System Model data, the spatiotemporal characteristics and temperature sensitivities of EPEs are analyzed. Results show that EPE-Hs, while less frequent, have longer duration and greater magnitude compared to EPE-NHs, particularly in high latitude regions. In the future, a significant increase is projected in the characteristics of EPE-Hs, in contrast to the stable duration and magnitude of EPE-NHs. EPE-Hs demonstrate substantially higher temperature sensitivity than EPE-NHs, especially in low latitudes. The precipitation-temperature scaling relationships diverge markedly between EPE-Hs and EPE-NHs, with notable regional variations. These insights are pivotal for crafting region-specific early warning and adaptation strategies to mitigate the risks associated with extreme precipitation under the backdrop of global warming.

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热应激后极端降水事件对温度的敏感性增强

本研究调查了温暖季节的全球极端降水事件（EPEs），重点关注极端热应激之前的极端降水事件（EPE-Hs），并与非极端热应激的极端降水事件（EPE-NHs）进行了对比分析。利用再分析产品和地球系统模式数据，分析了 EPE 的时空特征和温度敏感性。结果表明，与 EPE-NHs 相比，EPE-Hs 虽然频率较低，但持续时间更长、强度更大，尤其是在高纬度地区。预计未来 EPE-Hs 的特征将显著增加，而 EPE-NHs 的持续时间和强度将保持稳定。EPE-Hs 对温度的敏感性大大高于 EPE-NHs，尤其是在低纬度地区。降水-温度比例关系在 EPE-Hs 和 EPE-NHs 之间存在明显差异，且区域差异显著。这些见解对于制定针对特定地区的预警和适应战略，以减轻全球变暖背景下与极端降水相关的风险至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ACS Biomaterials Science & Engineering Materials Science-Biomaterials

CiteScore

10.30

自引率

3.40%

发文量

413

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