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北黄海冷水团理论模式解揭示:冷水团的形成主要是北黄海洼地之上的过冬水体,由于入春以后海面不断增温,热量自表层向深层不断传递的结果.在冷水团成长期(6—7月),非线性垂直对流和平流效应不断增强,逐渐和由表及底增温的热扩散效应取得平衡,从而导致强温跃层和侧向锋面的形成.与此同时,三维热生密度环流相应而生;在冷水团整个成长期,水平密度环流始终呈气旋型的,而垂直环流则经历了由冷中心为下降流、边缘为上升流过渡到冷中心为上升流、边缘为下降流的两个阶段.
The results show that the formation of cold water mass is mainly the overwintering water body above the northern Huanghai depression, and the heat transfer from the surface to the deeper reaches continuously as a result of the warming of the sea surface in the spring. - July), non-linear vertical convection and advection continued to increase, and gradually by the table and the end of the heat diffusion effect to achieve a balance between thermal diffusion, resulting in the formation of strong thermocline and lateral front.At the same time, And the density circulation is correspondingly generated. During the whole growth period of the cold water mass, the horizontal density circulation always takes the cyclone type, while the vertical circulation experiences the descending flow from the cold center, the rising edge flow as the rising flow and the edge as the descending Two stages of flow.