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本文试验用渤海风海流模型和水质模型,考查了季风对潮扩散浓度场的影响以及平均风海流的污染输运能力。结果表明,潮流在污染扩散中起支配作用,而平均风海流对浓度分布的影响居次要地位。通过纯风海流的污染输运模拟发现,辽东湾的风海流终年有利于该区的污染扩散;而在渤海湾,冬季平均风海流具有比夏季更强的物理自净能力,这种季节性差异,可能是导致渤海冬季水质优于夏季水质的一个重要原因。
In this paper, the Bohai Sea wind current model and water quality model were used to test the effect of monsoon on the concentration field of tidal diffusion and the mean pollution current carrying capacity. The results show that the tidal current plays a dominant role in the pollution spread, while the mean wind current has a secondary influence on the concentration distribution. Through the simulation of pollution transport in pure wind currents, it is found that the wind currents in Liaodong Bay are conducive to the spread of pollution throughout the year; while in the Bohai Bay, the mean winter wind currents have a stronger physical self-purification ability than in summer. It may be an important reason that the water quality of winter in Bohai is better than that in summer.