Dresden 2011 – scientific programme

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UP: Fachverband Umweltphysik

UP 1: Poster Session

UP 1.2: Poster

Tuesday, March 15, 2011, 18:30–20:30, P2

Hybrid measuring devices for evaluation of waves and currents — •Jörg Bendfeld and Stefan Krauter — Universität Paderborn

The waves and the current conditions are the drivers of the design of offshore structures. The knowledge of wave and current parameters is likewise desirable for coastal erosion studies, offshore engineering works and weather prediction. Presently these parameters are obtained by insitu measurements using buoy and ground based doppler equipment. A special challenge is the synchronous measurement of waves and current. The aim is to measure surface water wave elevations and kinematics of irregular wave trains, with a Pierson and Moskowitz or JONSWAP random wave spectrum and the current situation form the seabed to the sea surface. The wave elevation data, velocity time series, current horizontal velocity profiles and extreme wave incidents have to be monitored. The approach is to use a buoy in combination with an acoustic Doppler profiler (ADP). Comparisons between different measurement systems and this combination show the limitations and capabilities.