Numerical Study of Wave-Tide-Surge Coupling Processes
- 出版年：2006
- 作者：YIN Baoshu；SHA Rina；YANG Dezhou；CHENG Minghua
- 单位1：Institute of Oceanology，Chinese Academy of Sciences
- 语种：英文
- 起始页：1
- 总页数：15
- 刊名：海洋科学集刊
- 是否内版：否
- 主办单位：中国科学院海洋研究所编辑
- 主编：孙松
- 地址：青岛市南海路7号
- 邮编：266071
- 期：47
- 期刊索取号：P\226.061\449-1\47
摘要
Risk assessm ent of storm surge and wave hazards in the Huanghe Delta coastal area of the Bohai Sea requires accurate prediction of storm surge and wave hazards．So this study is aim ed at establishing a coastal high-resolution (2′×2′)two-way coupled wave-tide-surge model，including three main physical mechanisms．The model was used for com pari sons and analysis of simulated and measured wave heights and sea level in two moderate storm cases in the Huanghe Delta coastal area．We show that the effects of different physical m echanism son wave height sare mainly determ ined by wave.current interaction by radiation stress in the wave energy equa--tion．Wave-age dependent surface w ind stress and radiation stress m echanism s in the coupling wave—tide-surge interaction have positive impact on sea level，and w ave-curent interaction bottom stress mechanism show negative im pact on sea level．The com prehensive effects of three main physical mechanism s show positive net im pact on seal level and increase it by as m uch as 25 cm．We show that the w ave heights and sea levels sim ulated by the coupled wave—tide-surge model agree better with the measured values com pared to uncoupled model resuhs，particularly for peak storm conditions.