Improvement of the Method using the Coefficient of Variation for Automatic Multi-segmentation Method of a Rating Curve

Kim, Yeonsu; Kim, Jeongyup; An, Hyunuk; Jung, Kwansue

doi:10.3741/jkwra.2015.48.10.807

Cited by 3 publications

(1 citation statement)

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“…Equation ( 10) represents the typical multi-segmented rating curve, which is proposed by Kim et al [15], derived from field data without considering the backwater effect.…”

Section: Comparison Between Sfd and The General-regression-based Rating Curvementioning

confidence: 99%

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

Kim¹,

Lee³

et al. 2021

Water

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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

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“…Equation ( 10) represents the typical multi-segmented rating curve, which is proposed by Kim et al [15], derived from field data without considering the backwater effect.…”

Section: Comparison Between Sfd and The General-regression-based Rating Curvementioning

confidence: 99%