Journal article
Decoding the Hysteretic Behaviour of Hydraulic Variables in Lowland Rivers Using Multivariate Monitoring Approaches
Hydrological processes, Vol.39(1), e70008
01/2025
DOI: 10.1002/hyp.70008
Appears in UI Libraries Support Open Access
Abstract
This paper demonstrates that the multivariate monitoring methods are capable to underpin the systematic investigation of the hysteretic behaviour occurring during gradually‐varied flows. For this purpose, we present simultaneous measurements of stage, index velocity and free‐surface slope acquired continuously with high‐frequency sampling instruments deployed at several river gaging sites exposed to different storm magnitudes. The experimental evidence reveals intrinsic features of unsteady open‐channel flow mechanics that are hinted by pertinent governing equations but rarely substantiated with in situ measurements. The illustrations are intentionally made for fluvial waves propagating in lowland rivers where the relationships among flow variables are most likely displaying hysteretic phasing in the progression of the hydraulic variables and loops in their relationships. The presented measurements highlight that: (a) the hysteretic behaviour is apparent in both time‐independent and time‐dependent graphical representations of any two of the hydraulic variables; (b) the severity of the hysteresis is commensurate with the geomorphic, hydraulic and hydrological characteristics of the measurement site; and (c) there are flow monitoring paradigms that can more accurately track changes of the flow variables during gradually‐varied flows than those currently used in practice. Also discussed are research needs for advancing the understanding of the mechanisms underlying the movement and storage of water in the lowland river environments as well as for increasing the accuracy of streamflow monitoring, modelling and forecasting.
Details
- Title: Subtitle
- Decoding the Hysteretic Behaviour of Hydraulic Variables in Lowland Rivers Using Multivariate Monitoring Approaches
- Creators
- Marian Muste - University of IowaKyeongdong Kim - University of IowaDongsu Kim - Dankook UniversityGábor Fleit - Budapest University of Technology and Economics
- Resource Type
- Journal article
- Publication Details
- Hydrological processes, Vol.39(1), e70008
- Publisher
- Wiley
- DOI
- 10.1002/hyp.70008
- ISSN
- 0885-6087
- eISSN
- 1099-1085
- Grant note
- National Science Foundation: NSF-EAR- HS 2139649 NWS/NOAA: NA22NWS4320003 Szechenyi Plan Plus program: RRF 2.3.1 21 2022 00008 Ministry of Culture and Innovation and National Research, Development and Innovation Office: TKP2021- NVA-02, Sustainable Development and Technologies National Programme of the Hungarian Academy of Sciences (FFT NP FTA)
The first author acknowledges the support provided by the National Science foundation award NSF-EAR- HS 2139649. The second author was supported in this work on the paper by of the NA22NWS4320003 award funded by NWS/NOAA. The last author was supported by Szechenyi Plan Plus program through RRF 2.3.1 21 2022 00008 project, the Ministry of Culture and Innovation and National Research, Development and Innovation Office through Grant No. TKP2021- NVA-02, and by the Sustainable Development and Technologies National Programme of the Hungarian Academy of Sciences (FFT NP FTA).
- Language
- English
- Date published
- 01/2025
- Academic Unit
- Geographical and Sustainability Sciences; IIHR--Hydroscience and Engineering; Mechanical Engineering
- Record Identifier
- 9984775017902771
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