Dependence of daily precipitation and wind speed over coastal areas: evidence from China's coastline

IF 2.7 4区环境科学与生态学 Q2 Environmental Science

Hydrology Research Pub Date : 2023-03-17 DOI:10.2166/nh.2023.093

Xuyang Qi, Shuni Qian, Kebing Chen, Jun Li, Xushu Wu, Zhaoli Wang, Zi‐Wang Deng, Jie Jiang

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引用次数: 0

Abstract

Rainfall and wind speed are two important meteorological variables that have a significant impact on agriculture, human health, and socio-economic development. While individual rainfall or wind events have been widely studied, little attention has been devoted to study the lead–lag relationship between rainfall and wind speed, particularly in coastal regions where strong dependence between rainfall and wind speed is expected. Taking China's coastline as the case study, this paper aims to explore the variation trends of wind speed and rainfall and reveal the relationships between rainfall events and wind speeds on days before and after rainfall occurrence, by using meteorological station data from 1960 to 2018. The results show that wind speed trended to decrease while rainfall showed a slight increase for most stations. The daily wind speed increased 2 days before rainfall occurrence and decreased after then, with the highest wind speed observed during rainfall onset regardless of rainfall amount. Moreover, heavier rainfall events are more likely to occur with higher wind speeds. The findings of this study potentially improve the understanding of the dependence of rainfall and wind speed, which could help rainfall or wind-related disaster mitigation.

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沿海地区日降水和风速的相关性:来自中国海岸线的证据

降雨和风速是对农业、人类健康和社会经济发展产生重大影响的两个重要气象变量。虽然对单个降雨或风力事件进行了广泛的研究，但对降雨和风速之间的超前-滞后关系的研究却很少，特别是在预计降雨和风速之间具有强烈依赖性的沿海地区。本文以中国海岸线为例，利用1960 - 2018年的气象台站资料，探讨了中国海岸线风速和降雨量的变化趋势，揭示了降雨前后降水事件与风速的关系。结果表明:大部分站点的风速有减小的趋势，而降雨量有增加的趋势;日风速在降雨发生前2 d呈上升趋势，在降雨发生后2 d呈下降趋势，在降雨开始时风速最高，与降雨量无关。此外，更强的降雨事件更有可能在更高的风速下发生。这项研究的发现可能会提高对降雨和风速依赖性的理解，这可能有助于减轻降雨或与风有关的灾害。

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

Hydrology Research Environmental Science-Water Science and Technology

CiteScore

5.30

自引率

7.40%

发文量

审稿时长

17 weeks

期刊介绍： Hydrology Research provides international coverage on all aspects of hydrology in its widest sense, and welcomes the submission of papers from across the subject. While emphasis is placed on studies of the hydrological cycle, the Journal also covers the physics and chemistry of water. Hydrology Research is intended to be a link between basic hydrological research and the practical application of scientific results within the broad field of water management.