【摘要】 简述了水下辐照度异常尖峰分布现象和它的主要特征，根据海水光学参数的关系及水下总辐射的指数衰减方程导出了上行和下行辐照度垂直分布的三参数模型，该模型包括三个参数：海水体吸收系数ａ（ｚ）、后向散射系数ｂｂ（ｚ）和平均余弦的初始边界μ，（０）。利用该模型对几种典型水体中辐照度垂直分布的模拟结果与海上实测结果很一致。在模拟计算基础上，分析讨论了异常尖峰的产生机制。更多还原

【Abstract】 he phenomenon of anomalous peak in the vertical distribution of underwater irradiance, and its main features are reported. A three-parameter model, based on optical properties and the exponential equation of total radiance, is developed and used to model the downwelling and upwelling irradiance at each depth selected. The three parameters are a (z), bb (z) and μ (O), absorption coeficient, backscattering coeficient and initial value average cosine respectively. The modeling results show good compared with the ones measured in situ. The mechanism of the anomalous peak is analysed primarily.更多还原