Human-Induced Climate Change Intensifies Extreme Precipitation Events in Central China's Urban Areas

IF 4.6 1区 地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY
Yufan Chen, Shuyu Zhang, Hong Wang, Deliang Chen, Junguo Liu
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引用次数: 0

Abstract

Understanding the drivers behind extreme precipitation is crucial for predicting and mitigating the impacts of climate change globally, yet it remains little known how anthropogenic factors contribute to these phenomena. This study investigates the impact of human-induced climate change on circulation patterns conducive to extreme precipitation over the Central Plains Urban Agglomeration in China, a region frequently experiencing severe flooding and home to a dense population with significant economic and agricultural activities. Using advanced techniques such as deep learning and optimal fingerprinting, this study identifies and analyzes the physical mechanisms behind the extreme precipitation. The findings reveal that greenhouse gas emissions play a pivotal role in altering atmospheric circulation patterns, specifically promoting the westward extension of western North Pacific subtropical high and northwestward shift of South Asian High, along with tropical cyclones. These changes enhance moisture transport and convective activity, leading to more frequent and intense precipitation events.

Abstract Image

人为气候变化加剧了中国中部城市极端降水事件
了解极端降水背后的驱动因素对于预测和减轻全球气候变化的影响至关重要,但人们对人为因素如何促成这些现象仍然知之甚少。本研究探讨了人为气候变化对中国中原城市群极端降水环流模式的影响。中原城市群是一个经常遭受严重洪涝灾害的地区,人口密集,经济和农业活动显著。利用深度学习和最佳指纹识别等先进技术,本研究确定并分析了极端降水背后的物理机制。研究结果表明,温室气体排放对大气环流模式的改变起着关键作用,特别是促进了北太平洋副热带高压西伸和南亚高压西移以及热带气旋的发生。这些变化增强了水汽输送和对流活动,导致降水事件更加频繁和强烈。
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来源期刊
Geophysical Research Letters
Geophysical Research Letters 地学-地球科学综合
CiteScore
9.00
自引率
9.60%
发文量
1588
审稿时长
2.2 months
期刊介绍: Geophysical Research Letters (GRL) publishes high-impact, innovative, and timely research on major scientific advances in all the major geoscience disciplines. Papers are communications-length articles and should have broad and immediate implications in their discipline or across the geosciences. GRLmaintains the fastest turn-around of all high-impact publications in the geosciences and works closely with authors to ensure broad visibility of top papers.
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