| 摘要: |
| 随着我国经济建设的蓬勃发展，工农业和城市生活产生的污染物日益增多。如何处理这些污染物成了一个急待解决的问题。将污染物化有毒为无毒，当然是最彻底的办法，但这样做花费巨大，我们目前尚难做到。目前最常用的办法是将污染物排放人海。但过多的排放，超过了海洋的自净能力，就会污染海洋环境和海洋资源，进而影响人民的健康。所以，须要对污染物排放人海的方式、地点等加以选择，并对其排放人海的数量、速率等加以控制。这就要求我们了解海区对污染物的净化能力和在国家规定的标准下海区对污染物的最大容量。为了很好地解决这个问题，我们必须了解特定海区对污染物的稀释扩散起重要作用的海水运动情况。1984年5, 8, 10三个月，我们在渤海湾海河口区进行了海上调查，并结合历史资料，以COD 为指示因子，进行了渤海湾有机污染物在潮流作用下稀释扩散的数值计算。 |
| 关键词: 海河口、渤海湾潮流场、COD扩散、三维数值模拟 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第1355号 |
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| A THREE-DIMENSIONAL NUMERICAL MODEL FOR THE COD DISPERSION IN THE HAIHE RIVER MOUTH AND THE BOHAI BAY |
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Zhang Fagao, Yu Kejun, Leng Yangui
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Institute of Oceanology, Academia Sinica
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| Abstract: |
| Seeing that the observed vertical distribution of pollutant is not uniform, in this article a three-dimensional numerical model on the tidal current and the COD dispersion in the Haihe River mouth and Bohai Bay was develped based on Leendertse (1979). The horizontal and vertical distribution of tidal current and COD concentration computed on this model are all in agreement with observations. By this model the maximum allowable load of pollutant for that area (so called environmental capacity) was discussed. It was pointed out that, the yearly total of pollutant discharged into that area was never beyond the limit up to now, but there did occur pollution near-shore at the upper layer sometimes, the reason is that the pollutant discharge speed was extremely uneven in the course of a year, and that a considerable amount of wastewater suddenly came from a few sites in rainy season. |
| Key words: THREE-DIMENSIONAL NUMERICAL MODEL,COD DISPERSION,HAIHE RIVER MOUTH, BOHAI BAY |
