Discharge estimation in lined irrigation canals by using surface velocity radar

Chen, Yen‐Chang; Liao, Yi-Jiun; Chen, Wei‐Lun

doi:10.1007/s10333-018-0674-7

Cited by 4 publications

(1 citation statement)

References 13 publications

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“…Limitations of the radar equipment: Since the fixed-point radar can only measure the flow velocity at a specific point or a small range of the river, multiple devices would be required if the river is wide, which would result in high input costs, installation and maintenance challenges, data assimilation calculation complexity, and other issues [125]. Therefore, it is currently only applicable to the hydrological sections that are relatively stable, narrow, and where there are bridges, cableways, or cantilevers that can be used.…”

Section: Current and Future Limitationsmentioning

confidence: 99%

Radar Technology for River Flow Monitoring: Assessment of the Current Status and Future Challenges

Huang

Chen

Liu

et al. 2023

Water

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As an emerging non-contact method of flow monitoring, radar technology compensates for the shortcomings of traditional methods in terms of the efficiency, timeliness, and difficulty in monitoring high floods, and can provide accurate measurement results, making it one of the most promising flow monitoring methods in the future. This paper describes in detail the workflow from radar data acquisition to flow calculation; compares and analyzes the current state-of-the-art signal sampling and its limitations, Doppler spectrum estimation, signal processing and flow inversion; points out the challenges that these technologies may face in the future; and provides corresponding solutions in order to improve the real-time and accuracy of hydrometric as well as promote the development of non-contact flow monitoring technology.

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Section: Current and Future Limitationsmentioning

confidence: 99%

Radar Technology for River Flow Monitoring: Assessment of the Current Status and Future Challenges

Huang

Chen

Liu

et al. 2023

Water

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Increasing Hydropower Generation Method by Optimal Operation of Flood Events

黄¹

2021

JWRR

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A Review on the Video-Based River Discharge Measurement Technique

Chen,

et al. 2024

Sensors

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The hydrological monitoring of flow data is important for flood prevention and modern river management. However, traditional contact methods are increasingly struggling to meet the requirements of simplicity, accuracy, and continuity. The video-based river discharge measurement is a technique to monitor flow velocity without contacting the water body by using the image-recognition algorithms, which has been verified to have the advantages of full coverage and full automation compared with the traditional contact technique. In order to provide a timely summary of the available results and to inform further research and applications, this paper reviews and synthesizes the literature on the general implementation routes of the video-based river discharge measurement technique and the principles and advances of today’s popular image-recognition algorithms for velocity detection. Then, it discusses the challenges of image-recognition algorithms in terms of image acquisition conditions, parameter uncertainties, and complex meteorological and water environments. It is concluded that the performance of this technique can be improved by enhancing the robustness and accuracy of video-based discharge measurement algorithms, minimizing weather effects, and improving computational efficiency. Finally, future development directions for further perfecting this technique are outlined.

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Discharge estimation in lined irrigation canals by using surface velocity radar

Cited by 4 publications

References 13 publications

Radar Technology for River Flow Monitoring: Assessment of the Current Status and Future Challenges

Radar Technology for River Flow Monitoring: Assessment of the Current Status and Future Challenges

Increasing Hydropower Generation Method by Optimal Operation of Flood Events

A Review on the Video-Based River Discharge Measurement Technique

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