OTTRLS雷达水位计在山区性河流中的应用探讨

瓦窑水文站水流湍急,坡陡且垂直高差大,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...

Discussion on Application of OTTRLS Radar Water Level Meter in Mountainous Rivers

Wayao Hydrological Station is characterized by turbulent water flow, steep slope and large verticalheight difference. Traditional float or pressure water level gauges have some defects such as difficult constructionof auxiliary facilities, and long and hard observation process. Therefore, OTTRLS high-precision radar water levelgauge is introduced for water level observation. In order to ensure the observation accuracy of water level data andthe consistency of data sequence in Wayao Hydrological Station, 492 sets of data from radar water level gaugetelemetry as well as artificial water gauge observation in the same period are collected and compared synchronouslybased 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 cmand systematic error is 0.069 cm, both of which are less than the uncertainty and error specified in the water levelobservation standard. The results meet the requirements of current national standards for water level observation. TheOTTRLS radar water level meter adapts well when used in mountainous rivers, and the observed data can be used forcompilation. It meets the precision requirement of the measurement of steep rise and fall water level of mountainousrivers.