水利水电技术（中英文）2024，Vol.55Issue(11)：39-48,10.DOI:10.13928/j.cnki.wrahe.2024.11.004
基于卫星遥感和塔基视频的河流流量监测研究
Research of sectional flow monitoring based on satellite remote sensing and tower video
摘要
Abstract
[Objective]In order to obtain long-term,high-frequency of typical section river flow in the Xijiang River Basin,effec-tively supporting the needs of flood warning and water resources management.[Methods]Unmanned aerial vehicle remote sensing and intelligent unmanned boats are integrated to acquire elevation data above and below the water surface of cross sections,con-structing the high-precision three-dimensional digital river channel model.Furthermore,the width of the river width are extracted based on optical and radar satellite images,and an innovative algorithm is developed to identify the river water level and surface flow velocity by combining tower videos and deep learning models,thereby achieving rapid monitoring of river flow.[Results]The result indicate that the water surface width,obtained through integrating tower video and the three-dimensional digital river channel model.shows good consistency with the monitoring result from satellite remote sensing images,with errors ranging be-tween 1～2 pixels(10～20 m).Due to the influence of climate and riparian vegetation,the error will increase with the increasing of the water surface width to a certain extent..The surface flow velocity of the river is closely related to the underwater topogra-phy.When the river is deep,the surface flow velocity will also undergo significant changes.Compared to flow data obtained through hydrological tests using Acoustic Doppler Current Profilers,the video and remote sensing technology-based flow result are generally consistent,with errors controlled within 2%.[Conclusion]The innovative technology is developed to monitor the flow of typical sections by integration of satellite remote sensing and tower video method and conduct accuracy assessments,providing data support and technical assurance for flow monitoring and flood warning in different scenarios in the Xijiang River Basin.关键词
卫星遥感/视频测流/无人机/河道流量计算/精度分析/径流/水资源Key words
satellite remote sensing/video flow measurement/unmanned aerial vehicle/river flow calculation/accuracy analy-sis/runoff/water resources分类
测绘与仪器引用本文复制引用
张雪容,王雪蕾,张浩彬,王琦,尹文杰,李彤,黄才声,陈湛峰..基于卫星遥感和塔基视频的河流流量监测研究[J].水利水电技术（中英文）,2024,55(11):39-48,10.基金项目
国家自然科学基金项目(U23A2015) （U23A2015）
广东省科技计划项目(2024B1212050010) （2024B1212050010）
广东省重点领域研发计划项目(2020B1111350001) （2020B1111350001）
2023年度广东省环境整治专项资金项目(GDEEMC-2024-14) （GDEEMC-2024-14）
