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Shoreline Response to Breakwaters with Time-Dependent Wave Transmission.
| 题名： | Shoreline Response to Breakwaters with Time-Dependent Wave Transmission. |
| 作者： | wamsley, t. v. kraus, n. c. hanson, h. |
| 关键词： | time dependence, ocean waves, symposia, predictions |
| 摘要： | Wave transmission is a leading parameter determining the response of the shoreline to a detached breakwater, reef, or spur attached to a jetty. To improve the predictive capability of the shoreline response numerical model GENESIS, published empirical formulas for the wave transmission coefficient were incorporated to calculate time-dependent wave transmission and shoreline response. Simulations for different structural configurations, wave climates, and water levels demonstrate the functional utility of time-dependent wave transmission on shoreline response predictions. Results indicate that variable wave transmission is of significance for modeling the response of the beach to submerged and emergent near-surface structures. Predictions of the model are examined in application to a functional design of a submerged spur being studied as a possible sediment-control measure for the north jetty at Grays Harbor, WA. Results show that for design applications, beach response under time-varying forcing cannot be anticipated with a constant transmission coefficient. The improved capability is expected to have wide applicability. / NOTE: Conference paper. / Supplementary Notes: Presented at Coastal Sediments 2003. Sponsored in part by USACE Coastal Inlets Research Program. The original document contains color images. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 总页数： | u0821；12p |
| 报告类型： | 科技报告 |
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