Wave Setup and Design Water Levelby Uwe A. Hansen, Research Engr.; Leichtweiss-Institut, Technical Univ. of Braunschweig, Federal Republic of Germany,
Serial Information: Journal of the Waterway Port Coastal and Ocean Division, 1978, Vol. 104, Issue 2, Pg. 227-240
Document Type: Journal Paper
Abstract: During the winter of 1975-76 measurements were made by the Leichtweiss-Institut of the Technical University of Braunschweig at the west coast of the island of Sylt in the North Sea. The purpose of the field investigations was to determine the wave-induced setup in the surf zone and on the beach, defined as the height difference between the mean water level (MWL) and the still water level (SWL) and the influence of typical offshore parameters on this phenomenon. A new scheme was defined to determine the MWL as the mean value of the water surface variations measured at incremental time intervals over a certain time span. The maximum setup on the beach can reach values up to 30% of the incident significant wave height. The field investigations have shown that the rise of the mean water level due to wave setup is significant and should be taken in account in determining the design water level for coastal structures.
Subject Headings: Water level | Field tests | Beaches | Hydraulic design | Winter | Colleges and universities | Islands
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