Abstract
The global climate is expected to show continued warming throughout the coming century. As a direct consequence of higher temperatures, the hydrological cycle will undergo significant changes in the spatial and temporal distribution of precipitation and evapotranspiration. In addition to more frequent and severe droughts and floods, climate change can affect groundwater recharge rates and groundwater table elevation (Bates et al. 2008). Some previous studies of climate change impact on groundwater have suggested alarming reductions in ground-water recharge and lowering of water tables. Other studies, especially those focusing on regions of higher latitudes, have indicated a potential rise in water tables due to increased precipitation and recharge (Scibek & Allen 2006; Woldeamlak et al. 2007)
Highlights
Scibek, J. & Allen, D. 2006: Comparing modelled responses of two highpermeability, unconfined aquifers to predicted climate change
Previous studies have reported groundwater level rise due to either climate change (Scibek & Allen 2006; Woldeamlak et al. 2007) or stormwater infiltration practices (Gobel et al. 2004; Maimone et al. 2011). These two changes to the urban hydrologic cycle are typically not assessed in an integrated way as in this study
The modelling results presented in this paper are within the ranges of the above studies, i.e. tens of centimetres due to climate change and potentially more than 1 m due to the widespread adoption of stormwater infiltration practices
Summary
This study aims to assess the potential changes in groundwater response caused by both increased precipitation and widespread instalment of stormwater infiltration infrastructure in the city of Silkeborg, Denmark, using the MIKE SHE model
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