陆架和浅海环流的一个三维正压模式及其在渤、黄、东海的应用
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摘要: 本文发展了一种σ坐标下海洋环流的三维正压数值模式,模式中垂直涡动粘性系数由混合长度理论确定,因而可随流场的瞬时垂直结构而变化。计算采用了全部交错的网格结构,对计算稳定性有重要影响的垂直涡动粘性项采用了隐式差分格式。文章应用该模式模拟了渤、黄、东海冬、夏季风生环流,解释了黄海暖流的可能成因,数值计算结果表明,台湾暖流对对马暖流有重要贡献,在东中国东都海域存在南高北低的水位分布,以及地势效应对台湾-对马暖流系统有重要影响。
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