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首先推导了粗糙洋面双向偏振反射模型pBRDF(Bidirectional Polarized Reflectance Distribution Function),并将其与SOSVRT(Successive Order of Scattering Radiative Transfer)矢量辐射传输模式耦合,建立了海洋—大气耦合的矢量辐射传输模式,并对该耦合模式的模拟结果与前人模拟结果进行对比,验证了该耦合模式的可靠性与有效性。不同大气和洋面状态、不同高度的主平面内辐射强度和偏振度的模拟结果表明:pBRDF模型可以很好地模拟不同风速下洋面的偏振反射分布特征;洋面在特定角度具有很高的偏振度,并对大气顶的偏振辐射有很大影响。因此,该耦合模式可以更准确地处理辐射光谱在海洋—大气两种介质间的传输问题,对矢量辐射传输、大气遥感问题的研究有重要意义。
Firstly, the birefringent reflection model pBRDF (Bidirectional Polarized Reflectance Distribution Function) is derived and coupled with the vector radiation transmission mode of SOSVRT (Successive Order of Scattering Radiative Transfer), a vector radiation transmission mode of ocean-atmosphere coupling is established. The simulation results of this coupled model are compared with those of the previous models to verify the reliability and effectiveness of the coupled model. Simulation results show that the pBRDF model can well simulate the polarization reflection distribution of the ocean surface under different wind speeds. The ocean surface has a high polarization at a specific angle Degrees, and has a great impact on the polarization of the atmosphere’s top radiation. Therefore, the coupling model can more accurately deal with the transmission of the radiation spectrum between the ocean and the atmosphere, which is of great significance for the research on vector radiation transmission and atmospheric remote sensing.