Model-Based Verification of Dikes along the West Coast of Schleswig-Holstein

摘要

Every 10 to 15 years, the German Federal State of Schleswig-Holstein performs a safety check of its sea dikes. The regular check shall ensure that critical changes both to the structure and to the expected hydrological forces as a result of climate change are detected in time. While in the past wave run-up or debris edge measurements were used to determine the necessary wave parameters for the safety check, for the "Coastal Defence Master Plan 2012" of Schleswig-Holstein these parameters were calculated with a numerical wave model. An advantage of this method is that wave data in the required resolution for all dikes are established with a uniform procedure, regardless of natural data with frequent measurement errors. In the present paper this procedure is exemplified for the island of Pellworm.