Source: [Sonnenborg T.O., van Roosmalen L., and Hinsby K., 2010]


An integrated and distributed hydrological model was constructed for a coastal catchment on the island of Zealand, Denmark. Water supply in the area depends on abstraction from a relatively large lake located close to the sea. The model is forced by results from a regional climate model using the SRES A2 scenario and mean sea level rise in the range from 0.5 – 1.0 m. It is shown that the quantity of fresh water in a future climate is predicted to be sufficient to sustain water abstraction even though precipitation decreases during the summer period. However, the rising sea water level results in inflow of saltwater to the lake especially during late summer and autumn where the lake water level is relatively low and storm events results in high sea levels. The study shows that adaptation measures are needed already at a sea level rise of approximately 0.5 m if salt water inflow should not destroy the lake as a fresh water resource.

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Last modified: Jan. 28, 2016, 5:20 p.m.