Uncertainty analysis in a GIS-based multi-criteria analysis tool for river catchment management

► Multi-criteria analysis (MCA) can be used in environmental management decision-making. ► Uncertainty analysis increases confidence in MCA results. ► CEDSS, a GIS-based DSS, has been developed for river catchment management. ► It uses indicator-based uncertainty analysis to communicate uncertainty to decision-makers. ► Coupled with spatial representation of uncertainty, this promotes robust decision-making.