【作者】 孙宝楠； 尹训强； 连展；

【Author】 SUN Bao-nan;DAI De-jun;LIAN Zhan;Laboratory of Marine Science and Numerical Modeling,First Institution of Oceanography;

【机构】 国家海洋局第一海洋研究所海洋环境与数值模拟研究室；

【摘要】 本文以乳山湾为重点研究区域,利用美国普林斯顿大学海洋模式(POM)建立了变网格的潮汐潮流数值模式,模拟了该海区的分潮,并提取了主要分潮的调和常数。以潮汐潮流模式为基础,在POM的计算框架下建立了污染物扩散方程的离散形式,并构建了数值模型。在模式中我们在乳山湾口放置污染源,位置选择为121.47158oE,北纬36.77218oN。实验模拟结果表明污染物浓度在源强附近较大,随着潮流在一定范围内做往复运动。虽然潮汐潮流将污染物向岸边存在输运,但是在并未发生堆积。在开边界处有部分污染物流向外海,该结果并未显示存在污染物来自外海堆积在近海的可能性,在乳山湾附近的污染物分布主要来自当地的污染源。更多还原

【Abstract】 In this paper the POM with variable grids is applied to simulate the tide and tidal current in Rushan Bay, tidal harmonic constants are got through the results of simulation. Based on the tide and tidal current model, the discrete form of pollutant dispersion equation is established, the pollutant dispersion model is built on POM. The source of pollution is placed at the mouth of Rushan Bay in this model, the location is 121.47158°E, 36.77218°N. The result of simulation shows that pollution concentration is higher in area around the source, motions reciprocating with tidal current. Although the pollution is carried by tidal current towards the shore, but it is not stored in that area. There is some pollution which could pass through open boundary and get into the open seas. The present study indicates that the pollutant in Rushan Bay area in mainly local, there is less possibility that the pollutant is transport from open seas and piled up in offshore area.更多还原