济宁市2024年7月暴雨洪水特征分析

Analysis of Characteristics of Torrential Rain and Flood in Jining in July 2024

摘要:

2024年7月受副热带高压和台风影响,济宁市降水呈现旱涝急转明显,强降水过程频发,降水时空分布不均等特点。7月全市平均降水量500.1 mm,较历年同期偏多 161.4%,位居1955年以来历史第二位。文章系统分析了济宁市2024年7月暴雨成因、降水时空分布特征、河道洪水特征、泗河洪水过程和水库防洪效益,研究成果可为济宁市防汛抗旱和防洪减灾提供参考。

Abstract:

Affected by the subtropical high and typhoon, the precipitation in Jining Municipality in July 2024 showed obvious characteristics of rapid conversion from drought to flood, frequent extreme precipitation processes, and uneven temporal and spatial distribution of precipitation. The average precipitation in the city in July reached 500.1 mm, which was 161.4% more than the average of the same period over the years, ranking the second highest in history since 1955. This paper systematically analyzes the causes of torrential rain, the temporal and spatial distribution characteristics of precipitation, the characteristics of river floods, the flood process of the Sihe River, and the flood control benefits of reservoirs in Jining Municipality in July 2024. The research results can provide a reference basis for flood control, drought relief, flood disaster reduction in Jining Municipality.