蒙特卡洛方法模拟黄东海区水体光学特性的技术研究

本文基于海洋光学辐射传输原理，采用蒙特卡洛方法，建立水体光学特性的正演模型，该模型可以利用水体的固有光学特性作为输入，模拟水体的表观光学特性。本文将其应用在我国近岸海域，利用本模型与2003年春季黄东海区的实测数据进行模拟，并对模拟所得遥感反射率光谱的谱型和数值与实测数据进行对比分析，结果表明：模型给出的遥感反射率的模拟结果与实测数据谱型一致，符合我国近岸二类水体的典型光谱，并且数值偏差能够控制在20%以内，为今后进一步研究我国近岸水体光学特性打下基础。

英文摘要:

Based on the principles of marine optical radiation transmission, this paper sets up a forward model of water optical characteristics by adopting the Monte Carlo method. The model can simulate the expressional optical characteristics with the input of the immanent optical characteristics of waters. In this paper, the model is applied for China’s coastal seawaters. Simulation is conducted using the model as well as the measured data collected in the spring of 2003 in the Yellow Sea and East China Sea, and the patterns and values of the remote sensing reflectance spectra derived from simulation are compared with the practically measured data. The analysis results show that the spectrum simulation results of remote sensing reflectance of the model are consistent with the measured data, which is in line with the typical spectra of the class II waters off China’s coasts, with the deviation values controlled within 20%. The findings in this paper provide a solid foundation for further research on the optical characteristics of China’s near-shore waters.

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