Seabed shear stresses under random waves: predictions vs estimates from field measurements |
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| Authors: | Dag Myrhaug Olav H. Slaattelid Kostas F. Lambrakos |
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| Affiliation: | aDepartment of Marine Hydrodynamics, Norwegian University of Science and Technology, N-7034 Trondheim, Norway;bNorwegian Marine Technology Research Institute, P.O. Box 4125, Valentinlyst, N-7002 Trondheim, Norway;cExxon Production Research Company, P.O.Box 2189, Houston, TX 77001, USA |
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| Abstract: | The paper discusses the seabed shear stresses under random waves, and compares model predictions with results from field measurements near the seabed in the Strait of Juan de Fuca, Washington State, and at EDDA, North Sea. The model predictions as well as the interpretation of data are based on three different representative measures of random wave velocities within 12 minute records: root-mean-square, significant and maximum values. From the two locations the best agreement is found for the Strait of Juan de Fuca data regardless of the random velocity measure used. This agreement is attributed to the absence of suspended sediment at this location. |
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