Author(s): Lovisa M. Sjostedt; J. Gunnar I. Hellstrom; Anders G. Andersson
Linked Author(s):
Keywords: Eco hydraulics; Extreme flows; Grayling; Climate change
Abstract: As a result of climate change, precipitation is foreseen to change. The prediction for future precipitation in the northern hemisphere is that it will likely increase in the winter and decrease in the summer months (Schneider et al., 2013). The change in rainfall patterns will affect the aquatic life in rivers (Knouft et al., 2017). More extreme weather is predicted with more days without precipitation and more days with hefty rain (IPCC., 2018). The shift in precipitation patterns will also affect the way hydropower is used. Here, a section of a river in northern Europe has been studied using hydraulic modelling. Historical extreme events with low flows and high flows have been analyzed and modelled. The simulated flow conditions have been linked to parameters of aquatic life. The critical areas during extreme flows have been studied, and how these may affect the ecological status of the river in the future.
Year: 2025