UDMT – Urban drainage metrology toolbox: a software tool facilitating the adoption of better metrology practices

ABSTRACT Monitoring of urban drainage systems (UDS) is essential for operation, design, modelling, decision-making, and planning. However, it appears that metrology applied to urban drainage system is frequently of insufficient quality. To facilitate the adoption and application of best practices and advanced methods in metrology, the Urban Drainage Metrology Toolbox (UDMT) has been developed by European Project Co-UDlabs as a unique, free, online, and open-source software tool providing a set of coordinated functionalities including various methods for sensor calibration, data correction, uncertainty assessment, and data validation. This practice-oriented article presents the UDMT software, its main functionalities, and gives a detailed step-by-step training example of application to show its potential for practitioners, from raw measured water level and turbidity datasets to the calculated event pollutant load and its standard uncertainty during a storm event.