0.5 mm分辨力翻斗式雨量计在郑州“7·20”极端暴雨中的适用性分析

Analysis of the Applicability of a 0.5 mm Resolution Tipping-Bucket Rain Gauge during “7·20” Extreme Rainstorm in Zhengzhou

摘要: 本文基于郑州市尖岗水文站0.5 mm分辨力翻斗式雨量计的降水量数据，从降水过程的时段最大累计降水量、极端性及翻斗式雨量计在暴雨过程中的适用性等角度，详细梳理了郑州“7·20”极端暴雨过程。通过0.5 mm分辨力翻斗式雨量计实测降水量数据计算分析，明确了此次暴雨过程的特征和极端性，指明了0.5 mm分辨力翻斗式雨量计在极端暴雨监测中存在的风险，并有针对性地提出了相应的改进建议，以期为未来降水监测工作提供支撑。

Abstract: Based on the rainfall data from 0.5 mm resolution tipping-bucket rain gauge at Zhengzhou Jiangang Hydrological Station, the paper analyzes the precipitation characteristics of the “7·20” extreme rainstorm and the applicability of the 0.5 mm tipping-bucket rain gauge during the heavy rainfall event. Through calculation and analysis of the measured rainfall data from the 0.5 mm resolution tipping-bucket rain gauge, it defines the precipitation characteristics and extremity of the rainstorm event. In addition, the paper analyzes the risks or limitations of 0.5 mm resolution tipping-bucket rain gauge in monitoring extreme rainstorm events, and puts forward some suggestions for future development of tipping-bucket rain gauge, aiming to provide technical support for future precipitation monitoring efforts.