Event-based calibration of build-up parameters in conceptual water quality models using turbidity data

Key Points

• This study aims to enhance stormwater quality models through calibration using continuous turbidity data.
• Used continuous turbidity data for event-based calibration of water quality models.
• Analyzed variability in build-up rates across events within the same catchment.
• Examined the influence of traffic intensity and wind speed on pollutant build-up dynamics.
• Event-based calibration significantly improves representation of urban runoff TSS dynamics.
• Build-up rates exhibit strong variability between events, while wash-off parameters remain stable.
• Impacts of external factors like traffic and wind speed on pollutant build-up were noted.