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Article

Application of Stage-Fall-Discharge Rating Curves to a Reservoir Based on Acoustic Doppler Velocity Meter Measurement Data

by 1, 2, 3, 1,*,† and 4,*,†
1
K-Water Research Institute, Daejeon 34045, Korea
2
Forecast and Control Division, Geum River Flood Control Office, Ministry of Environment, Gongju 32595, Korea
3
Division for Integrated Water Management, Korea Environmental Institute, Sejong 30147, Korea
4
Department of Agricultural and Rural Engineering, Chungnam National University, Daejeon 34134, Korea
*
Authors to whom correspondence should be addressed.
These authors equally contributed to this study as corresponding authors.
Academic Editor: Jose G. Vasconcelos
Water 2021, 13(17), 2443; https://doi.org/10.3390/w13172443
Received: 16 July 2021 / Revised: 31 August 2021 / Accepted: 2 September 2021 / Published: 5 September 2021
(This article belongs to the Section Hydraulics and Hydrodynamics)
The applicability of the stage-fall-discharge (SFD) method in combination with acoustic Doppler velocity meter (ADVM) data, upstream of a hydraulic structure, specifically, the Sejong-weir located in the Geum River, Korea, was examined. We developed three rating curves: a conventional simple rating curve with the data measured using an acoustic Doppler current profiler (ADCP) and floating objects, an SFD rating curve with the data measured using the ADCP and floating objects, and an SFD rating curve with the data measured using an ADVM. Because of the gate operation effect, every rating curve involved many uncertainties under 1000 m3/s (3.13 m2/s, specific discharge). In terms of the hydrograph reconstruction, compared with the conventional simple rating curve, the SFD developed using ADVM data exhibited a higher agreement with the measured data in terms of the pattern. Furthermore, the measured discharge over 1000 m3/s primarily ranged between 97.5% and 2.5% in the graph comparing the ratio of the median and observed discharge. Based on this experiment, it is confirmed that the SFD rating curve with data to represent the backwater effect, such as ADVM data, can reduce the uncertainties induced by the typical rating curve View Full-Text
Keywords: stage-fall-discharge rating curve; ADVM; backwater; variable slope stage-fall-discharge rating curve; ADVM; backwater; variable slope
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MDPI and ACS Style

Kim, Y.; Oh, S.; Lee, S.; Byun, J.; An, H. Application of Stage-Fall-Discharge Rating Curves to a Reservoir Based on Acoustic Doppler Velocity Meter Measurement Data. Water 2021, 13, 2443. https://doi.org/10.3390/w13172443

AMA Style

Kim Y, Oh S, Lee S, Byun J, An H. Application of Stage-Fall-Discharge Rating Curves to a Reservoir Based on Acoustic Doppler Velocity Meter Measurement Data. Water. 2021; 13(17):2443. https://doi.org/10.3390/w13172443

Chicago/Turabian Style

Kim, Yeonsu, Sungryul Oh, Seungsoo Lee, Jisun Byun, and Hyunuk An. 2021. "Application of Stage-Fall-Discharge Rating Curves to a Reservoir Based on Acoustic Doppler Velocity Meter Measurement Data" Water 13, no. 17: 2443. https://doi.org/10.3390/w13172443

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