【摘要】 <正> 长期以来,人们直接或间接地把海洋作为处理废物的垃圾箱,大量的污染物质直接或间接地注入海洋,使海洋受到污染,致使水产资源遭到破坏,影响人体健康。 渤海为我国内陆海湾。在渤海周围,每年都有大量的工业、农业和民用污染物被排放到海湾内。研究排放到渤海污染物的分布规律是制定排放措施的依据之一,也是开展环境质量评价和预报的重要手段。因此,研究渤海污染物扩散分布规律,对保护海洋环境非更多还原

【Abstract】 In this paper, the Alternating Direction Implicit (ADI) method is employed to solve the pollutant diffusion equation and the distribution of the pollutant under the action of the semi-diurnal constituent in the Bohai Sea is given. The field of the tidal current and the values of water level used are got through simulating numerically. The diffusion coefficients are given by Kx=3.3H|U| and Ky=3,3 H|V| through numerical experiment. The consistency is taken as zero outside the computing domain and changes with the direction of tidal current on the open boundary. The pollutant load: the COD used as index of the pollutant are put into the Bohai Sea by the time steps of 3600 second and 1800 second at ten locations draining the pollutant.In order to estimate the diffuse ability of the semidiurnal constituent for COD, the pollutant diffusion have been calculated numerically by use of twice, 5 times, 10 times and 15 times the pollutant quantity drained at ten locations in 1979.更多还原