海洋环流是海洋科学研究的 1个焦点。本文首次建立了东中国海环流自适应数值模型。由于所设计的自适应网格既与边界适应 ,又在水深变化急剧的东海陆坡处得以加密 ,从而使坐标变换下的三维斜压模式克服了跨越陆坡计算这一难题 ,并以期获得更为精确的数值研究成果。该模型基于 L agrange时均观点 ,而非 Euler观点。它可计算海域三维斜压流场 ,从而得到其风生 -热盐 -潮致 L agrange环流。模拟结果与实测及现有的数值研究结果比较 ,合理可信。其中黄海暖流的起源问题 ,计算结果与传统观点相悖 ,而与近期实测结果一致。本文为系列报道之首篇 Ocean circulation is a focus of marine scientific research. For the first time, this paper established a numerical model of the circulation of the East China Sea. Because the designed adaptive grid is not only adaptive to the boundary but also encrypted in the East China Sea slope where the water depth changes drastically, the three-dimensional baroclinic mode under the coordinate transformation overcomes the problem of calculating over the slope and obtains more accurate Numerical research results. The model is based on the L agrange hourly view, not the Euler point of view. It can calculate the three-dimensional baroclinic flow field in the sea, so as to obtain its wind-heat salt-tide-induced L agrange circulation. The simulation results are in good agreement with the measured results and the existing numerical results. Among them, the origin of the Yellow Sea warm current, the calculation results contradict the traditional view, but with the recent measured results. This article is the first of a series of articles