This article written by Dr. Ulf Stein and Benedict Bueb from Ecologic Institute together with researchers of the French National Institute of Agricultural Research (INRAE) presents insights of two case studies, in Paris and Berlin, which investigated the potential of two mobile applications to make urban water management visible to the public and thus increase awareness about certain water management aspects.

In KliMaWerk, integrated measures and strategies are developed to increase hydrological and ecological resilience for watercourses affected by climate change. Special consideration is given to low-flow and drying situations, alternating with heavy rainfall events. The ecological functions of the water bodies as well as competing water body uses are taken into account through the integrated consideration of an entire water body catchment area. What is new here is the holistic view of the landscape water balance, instead of a narrow focus on individual spatial elements or individual user groups.

The project provides an overview of the current water availability in Germany, as well as its future development under climate change conditions. It predicts emerging conflicts of use and develops possible solution strategies. For example, a concept for regional water advisory councils will be developed. These are intended to avoid water conflicts by enabling representatives of water-relevant sectors to exchange information. In addition, options for reusing water for irrigation in urban areas are being examined.

European cities face major challenges to achieve the desired level of sustainability in the management of urban water systems. Digital technologies such as mobile devices, sensor network, real-time monitoring, machine learning, and modeling tools have the potential to improve the management of water infrastructures significantly. In addition, they can improve the quality of services provided to citizens as well as awareness and cooperation between utilities, public authorities, and citizens in urban water management. The main objective of the project is to boost the integrated management of water systems in five major European cities, Berlin, Milan, Copenhagen, Paris, and Sofia, by leveraging the potential of data and smart digital technologies.