Estimation of River Discharge Using Unmanned Aerial Vehicle (UAV) Based on Manning Formula for an Ungauged Alpine River in the Eastern Qilian Mountains
Abstract:River discharge is crucial to water resources development and ecological protection. However, in some arid areas of northwest China, it is still difficult to measure discharge accurately. In this study, unmanned aerial vehicle (UAV) imagery has been used to estimate river discharge at two river sections in the upper reaches of the Shiyang River in the eastern part of the Qilian Mountains based on the Manning formula. The estimated discharges at those two sections are 1.16 m3/s and 3.11 m3/s, respectively. Taki… Show more
“…The estimated discharges at those two sections are 1.16 m 3 /s and 3.11 m 3 /s, respectively. Taking the discharges measured by an acoustic Doppler current profiler (ADCP) as the reference, the relative error of the estimates is below 5%, which is accurate for water resources' management in mountain basin regions [2].…”
mentioning
confidence: 98%
“…River discharge is crucial to water resources' development and ecological protection. Cai et al [2], unmanned aerial vehicle (UAV) imagery was used to estimate river discharge at two river sections in the upper reaches of the Shiyang River in the eastern part of the Qilian Mountains based on the Manning formula. The estimated discharges at those two sections are 1.16 m 3 /s and 3.11 m 3 /s, respectively.…”
Water resources’ management at a high spatial and temporal resolution calls for data support at the relevant scales, which has long been hindered by the availability of high-resolution data [...]
“…The estimated discharges at those two sections are 1.16 m 3 /s and 3.11 m 3 /s, respectively. Taking the discharges measured by an acoustic Doppler current profiler (ADCP) as the reference, the relative error of the estimates is below 5%, which is accurate for water resources' management in mountain basin regions [2].…”
mentioning
confidence: 98%
“…River discharge is crucial to water resources' development and ecological protection. Cai et al [2], unmanned aerial vehicle (UAV) imagery was used to estimate river discharge at two river sections in the upper reaches of the Shiyang River in the eastern part of the Qilian Mountains based on the Manning formula. The estimated discharges at those two sections are 1.16 m 3 /s and 3.11 m 3 /s, respectively.…”
Water resources’ management at a high spatial and temporal resolution calls for data support at the relevant scales, which has long been hindered by the availability of high-resolution data [...]
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