NORTH SEA TIDE AND STORM SURGE INVESTIGATION

Winfried Siefert

Abstract


An extensive investigation of tide and storm surge measurements in the coastal waters of the southeastern North Sea (German Bight) is now being concluded, giving new hints to tidal behaviour in a complex area, consisting of extended tidal flats, interrupted by islands, sand banks, estuaries and gullies. The analysis was promoted by the "German Coastal Engineering Board" (KFKI) and will be the basis of further investigations of the storm surge conditions in tidal estuaries. Tidal records and high and low water values of 130 gauges in 2 an area of 12.000 km (5.000 sq.mi.) were used to evaluate cotidal lines in the German Bight mean tide curves regressions between different locations neap and spring tide conditions secular changes over the last 80 years storm surge development.

Keywords


North Sea; tide investigation; storm surge; surge investigation

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