东江博罗水文站断面调整水位比测分析

Comparative Analysis of Water Level for Cross-Section Adjustment at Boluo Hydrological Station in Dongjiang River

基于博罗水文站基本水尺新旧断面水位比测分析,选取2022—2023年的水位观测资料,采用相关性关系分析及水位观测不确定度估算的方法,验证水位比测是否合格,是否启用新断面和变更站名。结果表明,新旧断面水位比测合格,数据相关性较好,置信水平为95%的综合不确定度为2 cm(≤3 cm),系统误差为-6.4×10^(-4) cm(≤±1 cm),符合相关规范要求,可启用新的基本水尺断面且站名保持不变。

Based on the water level comparative analysis of the new and old basic staff gauge cross-section at Boluo Hydrology Station,the paper selects the water level monitoring data from 2022 to 2023,and adopts the correlation analysis and the estimation of the uncertainty of water level observation to verify whether the water level comparative gauging is qualified and whether the station name is changed.The results show that the water level of the new and old sections is qualified and the data correlation is good.The synthetic uncertainty of 95%confidence level is 2cm(≤3cm),and the system error is-6.4×10^(-4)(≤±1cm),which meets the requirements of relevant specifications.Moreover,the station name can remain unchanged after the basic water gauge section of the station is adjusted and moved to the new position.