Fig. 4: Flood extent for the 200-year event plus 1.5 m SLR and two adaptation scenarios.

a Flood extent adaptation status quo. b Flood extent for western Rügen when all dikes are increased in height by 1.5 m. c Flood extent for western Rügen under the implementation of hypothetic MR sites (including state dikes plus 1.5 m). d Flood extent for Fehmarn when all dikes are increased in height by 1.5 m. e Flood extent for Fehmarn under the implementation of hypothetic MR sites (including state dikes plus 1.5 m).