Erik Mosselman is a river scientist and hydraulic engineer with special expertise in fluvial morphodynamics, river training, ecological river restoration and flood risk management. He holds permanent positions at Deltares (0.7 fte) and Delft University of Technology (0.3 fte). He worked on numerous rivers in Europe, Asia, Africa and the Americas, with long-standing involvement in the Room-for-the-River programme for the Rhine branches in the Netherlands, development of a sustainable inland waterway between the Port of Rotterdam and Germany, and stabilization of the Brahmaputra-Jamuna River in Bangladesh. He combines broad system analysis and mathematical methods with practical engineering in research, consultancy, education and strategic advice. As a research manager, he led research programmes and international work packages encompassing several PhD projects. He was the leader of innovation and development of numerical morphodynamic models at Delft Hydraulics / Deltares and supervised laboratory experiments and field research. He is an expert in long-term river evolution under global change and was an invited speaker at the COP21 climate conference in Paris in December 2015. Key topics in his research are riverbank erosion, bars, meandering, braiding, bifurcations and avulsions. He has a keen interest in nature-based solutions for river restoration and adaptive river training. During his involvement in the Room-for-the-River programme he developed methods for morphological impact assessment and acted as the national auditor for such assessments carried out by engineering consultancies. For the European Union he participated in defining hydromorphological conditions for good ecological status according to the Water Framework Directive. He participated in teams to review flood disaster events and flood risk management policies in France, Colombia and Canada, and he is regularly invited abroad to present Dutch approaches to safety against flooding. He actively reaches out to stakeholders and has written explanatory publications for a non-expert readership.