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DK1: Aabenraa city and town of Bylderup-Bov

Climate-hydrological models for flood and contamination protection in Aabenraa city and town of Bylderup-Bov

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This project takes holistic approach on climate adaptation. The project includes two pilot areas within Aabenraa Municipality, Aabenraa city and town of Bylderup-Bov, which are both areas threatened by flooding caused by changing climate.

The Bylderup-Bov case represents an area threatened by flooding (increased precipitation, flooding from river Slogså and a high groundwater table). The pilot includes changing agricultural areas into a nature areas and retaining surface water upstream, restoring of the natural watercourse, reducing of CO2 emission, integrated water management and green infrastructures as well as biodiversity, recreation and healthy soils.

Aabenraa city is threatened by flooding (increased precipitation, flooding from Mølleå, storm water overflow from Aabenraa Fjord and a rising groundwater level). The solution is to retain surface water upstream as a nature area and establishing a pump-floodgate station downstream. However, there is a risk that this affects the groundwater balance and mobilizes the contamination in the city. For the risk assessment a holistic solution is needed, that includes modelling of geology and hydrology.