中文摘要：

对海流分层流速数据进行分析，提出了复合指数模型，并将该模型与常见的几个海流垂向分布模型作了适用性比较。复合指数模型参数多，线型灵活，对不同海域、不同水深垂向海流流速分布适用性较好。二次函数法适用于海水较浅的海域。扩展后的对数线性模型适用范围较小，对垂向流速拟合效果较差。在实际应用中，应结合ADCP，把海流垂向分布模型运用到海流流速的测量处理当中。

英文摘要：

The current velocity distributions in vertical were compared with the data of current velocity in layer. A complex exponential distribution model was suggested. This complex exponential distribution model has five parameters. And the line is flexible. It is suitable for the current velocity in vertical. Quadratic function is suit for the current velocity in the area with shallow waters. Extended log-linear model is suit for the current veloci- ty in the area with deep waters sometimes, not shallow waters. Combining with ADCP we used the models in inferring current velocity.