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The action of the wind field and the influence of topography can cause divergence or convergence of surface current. The existence of the divergence-convergence effect is proved and the dynamical significance of the divergent or convergent state and its link with many marine phenomena are pointed out. Divergence fields of surface current in the Bohai Sea in winter and summer are obtained by numerical modelling describing the divergence-convergence character of seasonally wind-driven current. The relation between the effect and seasonal marine phenomena is discussed. Study on the divergence-convergence effect of surface current (DCESC)can be an indirect method for testing the calculated results. 相似文献
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晚古生代-中三叠世,中国南方在陆块间离散-聚合的不同构造运动体制下,分别在扬子陆块内部和边缘形成了不同的盆地原型及其演化序列.在扬子陆块的西南缘,主要形成裂谷-被动大陆边缘坳陷-弧后盆地的原型演化序列;扬子陆块南缘发育裂谷到台内坳陷再到裂谷原型演化序列;扬子陆块内部主要形成台内拗陷-裂谷的原型演化序列.古特提斯洋演化对晚古生代构造和盆地原型的演化起决定性作用. 相似文献
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