利用中韩“黄海水循环动力学及物质输运”合作研究项目第一航次１９９６初春所获得的ＣＴＤ资料描述了南黄海初春温、盐和密度的水平和垂直分布特征，分析了水团结构，并揭示了春季在３４°～３６°Ｎ，１２１°４５’～１２４°Ｅ的南黄海西部水域的中层冷水现象．分析结果表明初春黄海暖流上表层开始向济州岛方向退缩，黄海底层冷水团首先在青岛外海形成． Using the CTD data obtained from the first voyage of the first voyage of China-South Korea “Yellow Sea water cycle dynamics and material transport” project in 1996, the horizontal and vertical distributions of temperature, salt and density in the early spring of the South Yellow Sea are described, and the water mass structure is analyzed. The mid-level cold water phenomenon in the western South Yellow Sea at 34 ° -36 ° N and 121 ° 45 ° -124 ° E was revealed. The results show that in the early spring, the upper surface of the Yellow Sea warm current shrank toward Jeju Island, and the cold water bottom of the Yellow Sea first formed in the outer sea of ​​Qingdao.