水利信息化Issue(3)：50-56,7.DOI:10.19364/j.1674-9405.2026.03.008
靖远县"20250623"暴雨洪水分析
Analysis of"20250623"rainstorm and flood event in Jingyuan County
摘要
Abstract
To investigate the occurrence characteristics of rainstorm and flood disasters under the background of ongoing climate change,this study used the"20250623"rainstorm and flood event in Jingyuan County as a case study,focusing on key parameters including rainfall intensity,peak discharge,and return period.Typical survey sections were selected from the short-duration"20250623"rainstorm and flood event.A combination of methods was applied,including the rainstorm and flood survey method,Manning's formula,the Pearson Type Ⅲ(P-Ⅲ)frequency curve fitting method,and regional empirical formulas.These methods were integrated with information technologies such as the"Space-Air-Ground"integrated sensing system,5-min rainfall telemetry,rainfall radar monitoring,and digital twin technology,supplemented by analyses of runoff generation,flow concentration,and underlying-surface conditions,to investigate the causes and characteristics of the rainstorm and flood event.The results showed that this rainstorm had a short duration and high intensity and was a non-frontal rainfall event.The rainstorm center was located in Liangjiao Village.The 3-h precipitation amount at the rainstorm center reached 50.2 mm,corresponding to a return period of 10 years.The peak discharge of the flood(Han'gou River section at Qingyang Village)reached 199 m3/s,with a return period of 10 years,consistent with that of the 3-h rainstorm.The water information technologies applied in this study played an important role in real-time rainstorm monitoring and dynamic flood analysis.The findings provide methodological reference and data support for rainstorm-flood disaster investigation and flash flood warning in ungauged regions.关键词
暴雨洪水/洪水调查/重现期/靖远县/水利信息化Key words
rainstorm and flood/flood investigation/return period/Jingyuan County/water information technology分类
建筑与水利引用本文复制引用
赵永刚,吕明侠,吕柏..靖远县"20250623"暴雨洪水分析[J].水利信息化,2026,(3):50-56,7.基金项目
甘肃省自然科学基金项目(26JRRA443) （26JRRA443）
甘肃省水利科学试验研究及推广计划项目(26GSLK059) （26GSLK059）
