Concentration-discharge hysteresis: current approaches and future directions for quantifying pollutant dynamics in storm events—with a particular focus on the tropics

Storm events play a crucial role in controlling pollutant mobilization and transport in catchments. Concentration-discharge (C-Q) hysteresis analysis of storm events offers valuable insights into these processes and in linking results to pollutant sources and generating processes. This paper reviews...

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Bibliographic Details
Published in:Sustainable water resources management 2024-08, Vol.10 (4), p.156, Article 156
Main Authors: Mazilamani, Lelavathy Samikan, Walsh, Rory Peter Dominic, Annammala, Kogila Vani, Bidin, Kawi, Yusop, Zulkifli, Reynolds, Glen, Nainar, Anand
Format: Article
Language:English
Subjects:
Catchment area
Catchments
Classification
Data logging
Development Economics
Earth and Environmental Science
Earth Sciences
Hydrogeology
Hydrology/Water Resources
Hysteresis
Land management
Land use
Land use management
Logging
Original Article
Pollutants
Pollution control
Pollution dispersion
Pollution sources
Storms
Sustainable Development
Tropical environment
Tropical environments
Water discharge
Water Policy/Water Governance/Water Management
Water quality
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Summary:Storm events play a crucial role in controlling pollutant mobilization and transport in catchments. Concentration-discharge (C-Q) hysteresis analysis of storm events offers valuable insights into these processes and in linking results to pollutant sources and generating processes. This paper reviews the history and advances made by hysteresis studies, highlighting the recent integration of in-situ sensor/data-logging systems and quantitative hysteresis analysis. Recent years have witnessed a surge in C-Q hysteresis research, partly due to the expansion of use of in-situ sensors, enabling the collection of longer-duration and high-resolution discharge and water quality datasets covering a much greater number and range of storm events than previously possible. The paper then reviews developments in hysteresis description and classification, with a focus on quantitative hysteresis indices. Six indices are evaluated in terms of their strengths and weaknesses. Zuecco’s index emerges as an effective tool for quantifying C-Q hysteresis due to its systematic classification of hysteresis patterns and ability to assess figure-of-eight and complex patterns. Finally, the review explores the limited, but promising hysteresis research carried out to date in tropical regions, where it is argued such research has its greatest need and potential in exploring (and reducing) impacts of logging, land-use change and land management.
ISSN:2363-5037
2363-5045
DOI:10.1007/s40899-024-01130-2