杨世维

（云南省水文水资源局保山分局，云南 保山 678000）

　　摘  要：瓦窑水文站水流湍急，坡陡垂直高差大，传统的浮子式或压力式水位计存在附属设施施工困难，观测过程历时较长且难度大等缺陷，为此引进OTTRLS高精度雷达水位计用于水位观测。为保证瓦窑水文站水位资料观测精度及资料序列的一致性，在分析OTTRLS雷达水位计测量原理基础上，收集同时期雷达水位计遥测与人工水尺观测的492组数据进行同步比测，并进行误差分析。比测分析结果表明：置信水平95% 的综合不确定度为2.47 cm，系统误差为0.069 cm，均小于水位观测标准规定的不确定度和误差，满足现行水位观测国家标准规范要求，OTTRLS雷达水位计在山区性河流中使用具有较好的适应性，观测数据可用于整编，满足山区性河流陡涨陡落水位测量对精度的要求。

　　关键词：高精度雷达水位计；水位观测；波动补偿；比测；应用探讨；山区性河流

Discussion on application of OTTRLS radar water level meter in mountainous rivers

YANG Shiwei

(Yunnan Bureau of Hydrology and Water Resources, Baoshan 678000,China)

　　Abstract: Wayao Hydrological Station is characterized by turbulent water flow, steep slope and large vertical height difference. Traditional float or pressure water level gauges have some defects such as difficult construction of auxiliary facilities, and long and hard observation process. Therefore, OTTRLS high-precision radar water level gauge is introduced for water level observation. In order to ensure the observation accuracy of water level data and the consistency of data sequence in Wayao Hydrological Station, 492 sets of data from radar water level gauge telemetry as well as artificial water gauge observation in the same period are collected and compared synchronously based on the analysis of OTTRLS radar water level gauge measuring principle. Error analysis is also carried out. Comparison and analysis results show that the comprehensive uncertainty of 95% of the confidence level is 2.47 cm and systematic error is 0.069 cm, both of which are less than the uncertainty and error specified in the water level observation standard. The results meet the requirements of current national standards for water level observation. The OTTRLS radar water level meter adapts well when used in mountainous rivers, and the observed data can be used for compilation. It meets the precision requirement of the measurement of steep rise and fall water level of mountainous rivers.

　　Key words：high-precision radar water level gauge; water level observation; volatility compensation; comparison measurement; discussion on application; mountainous rivers