 Citizen science is a growing field that involves public participation in scientific research, data collection, and interpretation alongside scientists. The use of sensing technology, data processing, visualization, and communication has created new opportunities for citizen science in hydrology and water resources management. While the advent of low-maintenance sensing equipment provides unprecedented opportunities for data collection, the nature and quality of data collected in citizen science experiments may differ from those of traditional monitoring networks. This poses challenges in terms of processing, interpretation, and use, especially with regard to assimilation of traditional knowledge, quantification of uncertainties, and their role in decision support. The integration of hydrologically oriented citizen science and water resources management requires careful consideration of the challenges and opportunities, as well as the potential contestation to established community institutions posed by cogeneration of new knowledge. This article was authored by Wouter E. Bytart, Wouter E. Bytart, Wouter E. Bytart, and others. We are article.tv, links in the description below.