鄱阳湖实验站不同高度雨量观测数据对比分析

Comparative Analysis of Rainfall Observation Data at Different installation Heights at Poyang Lake Hydrological Experiment Station

摘要: 为探究不同高度雨量计观测雨量的差异，提高雨量观测数据的准确度，为水文预报、洪水演进计算和洪涝灾害防御等工作提供可靠性的数据支撑，本研究选取鄱阳湖水文实验站作为试验区，布设0.7 m、2.5 m和屋顶三种不同安装高度的雨量计，开展不同高度雨量观测数据对比分析工作。根据不同高度雨量计的日雨量和月雨量统计分析，结果表明：0.7 m雨量计、2.5 m雨量计和屋顶雨量计雨量观测值具有良好的一致性；0.7 m雨量计和2.5 m雨量计雨量观测值差异较小，屋顶雨量计雨量观测值明显小于0.7 m雨量计和2.5 m雨量计观测值。

Abstract: To improve the accuracy of rainfall observation data and thereby provide reliable data support for hydrological forecasting, flood routing calculations and flood disaster prevention, the Poyang Lake Hydrological Experimental Station was selected as the experimental area. Rain gauges were installed at three different heights: 0.7 m, 2.5 m and on the roof. Based on the statistical analysis of daily and monthly rainfall data from the rain gauges at different heights, the results show that the rainfall observation values of the 0.7 m rain gauge, 2.5 m rain gauge, and roof rain gauge exhibit strong consistency. The difference between the observation values of the 0.7 m rain gauge and the 2.5 m rain gauge is small, while the observation value on the roof rain gauge is significantly lower than those of the 0.7 m and 2.5 m rain gauges.