Research on Stormwater Quantity
Temperatures in Sweden are predicted to increase by 3-5 oC by 2080, with increases in the frequency of winter rainfall events predicted. This is a particular challenge for urban areas, where their largely impermeable surfaces enhance surface runoff volumes, worsening flood risks and degrading water quality. The impacts of increasing winter rain events are further enhanced by the fact that many cities have an ageing drainage infrastructure (piped systems are expensive and disruptive to excavate) that is already at – or beyond – drainage capacity. DRIZZLE’s storm-water quantity research theme is responding to the urgent need to address increasing stormwater volumes in urban areas through a series of interlinked studies, investigating both novel and established drainage solutions and the tools used to design and manage their performance under a changing climate.
Vetenskaplig ledare och vice-ledare: Lian Lundy och Ico Broekhuizen

The Sponge
Climate change increases cloudbursts. The project develops new ways to capture stormwater using absorbent urban materials. The work is based on three main concepts.

Integrating novel field data sets
Modelling blue-green infrastructure performance – integrating novel field data sets.

Performance under a changing climate
Our previous research showed the need to understand BGI components’ hydrological performance under current and future Swedish climates.

Reducing uncertanties
Modelling blue-green infrastructure performance – reducing uncertainties.