Uncertainty in remote sensing of streams using noncontact radars

Khan, Mushfiqur Rahman; Gourley, Jonathan J.; Duarte, Jorge A.; Vergara, Humberto; Wasielewski, Daniel; Ayral, Pierre‐Alain; Fulton, John W.

doi:10.1016/j.jhydrol.2021.126809

Cited by 7 publications

(1 citation statement)

References 33 publications

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“…Current meters and floats have emerged as the most used flow velocity measurement methods due to their high applicability. However, they require labor participation, which not only presents safety risks but also poses issues with laborious, low efficiency and measurement difficulties during high floods [10][11][12]. Compared with the first two methods, although the automation and measurement accuracy of ADCPs have been improved remarkably, they are still expensive and cannot be used in real time monitoring or under the conditions of high turbulence, aviation, and bed movements [13][14][15].…”

Section: Introduction 1motivationmentioning

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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