作　　者： ; ; ; ;

机构地区： 上海海洋大学海洋科学学院

出　　处： 《上海海洋大学学报》 2009年第3期351-358,共8页

摘　　要： 对大亚湾2006年和2007年的风场资料进行分析,数值模拟年平均风场作用下大亚湾的余流场,采用保守物质输运扩散法研究大亚湾的水交换能力。把大亚湾分成7个子区域,计算整个海湾和各子区域的水体更新时间,比较了各子区域水交换能力的强弱。大亚湾水交换能力总体为:南部优于北部,东部优于西部;年平均风场大大加速了大亚湾的水交换速率,全湾平均水体更新时间由仅考虑潮流作用时的82.5 d降低为26.0 d;风场作用下的表、底层环流差异较大,表层水交换能力略高于底层。 Tide and wind-driven residual current of Daya Bay was simulated by a 3D numerical estuarine and coastal ocean model after data analysis of wind field in 2006 and 2007. Method of tracer matter transportation and diffusion was applied to study water exchange of Daya Bay. The Daya Bay was divided into seven parts to compute the water refresh time respectively. The water exchange capability of the southern part was better than northern part and the eastern part better than western part. Annual average wind accelerated the water exchange rate of Daya Bay strongly, for the gulf average water refresh time reduced from 82.5d to 26.0d. The water exchange rate of surface was higher than bottom due to the wind-driven current difference between surface and bottom.

关 键 词： 大亚湾 水交换 风场 数值模拟

领　　域： [农业科学]