阿拉伯北部1600年的极端降雨记录

IF 12.5 1区 综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES
Sam J. Purkis, Steven N. Ward, Bolton J. Howes, Jake M. Longenecker, Morgan I. Chakraborty, Akos Kalman, Amy C. Clement, Arash Sharifi, Francesca Benzoni, Christopher Clarke, Mattie Rodrigue
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引用次数: 0

摘要

强降雨会在阿拉伯引发洪水。2024年的暴雨在该地区播下了广泛的混乱。山洪倾泻而出的带有沉积物的羽状物沉积在海床上。穴居动物破坏了这些洪水层,抹去了古降雨记录。幸运的是,我们发现了一个缺氧的深海盐水池,它离海岸很近,可以记录洪水,但没有受到动物的干扰。从池中提取的岩心提供了1600年的降雨记录。我们将这些核心层历史与现代降雨统计、卫星观测和模拟相结合,以提供阿拉伯半岛晚全新世的高分辨率定量水文气候记录。我们发现,现代比过去1600年干燥2.5倍。小冰期特别潮湿。那个时期的降雨强度是今天的五倍。虽然现在极度干旱,但洪水层表明,气候变化可以产生现代从未见过的天气状况。这种长期的洞察力对于确定未来水文气候预测的不确定性至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A 1600-year record of extreme rainfall in northern Arabia
Intense rain can trigger flashfloods in Arabia. Torrential rains in 2024 sowed widespread chaos in the region. Sediment-loaded plumes discharged by flashfloods deposit onto the seabed. Burrowing animals disrupt these flood layers, erasing the paleorainfall record. Fortuitously, we discovered an anoxic deep-sea brine pool sited close enough to shore to chronicle floods, yet be otherwise undisturbed by animals. Cores retrieved from the pool delivered a 1600-year rainfall record. We merge these core-layer histories with modern rainfall statistics, satellite observations, and simulations to deliver a high-resolution quantitative Late Holocene hydroclimate record for Arabia. We find that the modern era is 2.5 times drier than the last 1.6 thousand years. The Little Ice Age stands out as particularly wet. That period experienced a fivefold increase in rainfall intensity compared to today. Though hyperarid now, the flood layers demonstrate that climate shifts can generate weather conditions unwitnessed in the modern era. Such long-range insight is crucial for framing uncertainties surrounding future hydroclimate forecasts.
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来源期刊
Science Advances
Science Advances 综合性期刊-综合性期刊
CiteScore
21.40
自引率
1.50%
发文量
1937
审稿时长
29 weeks
期刊介绍: Science Advances, an open-access journal by AAAS, publishes impactful research in diverse scientific areas. It aims for fair, fast, and expert peer review, providing freely accessible research to readers. Led by distinguished scientists, the journal supports AAAS's mission by extending Science magazine's capacity to identify and promote significant advances. Evolving digital publishing technologies play a crucial role in advancing AAAS's global mission for science communication and benefitting humankind.
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