Title: Multiple Scattering Effects in Noctilucent Clouds: Numerical Estimation and Application to Altitude and Particle Size Measurements Show Chinese title

Title: 极光云中的多次散射效应：数值估算及其在高度和粒子尺寸测量中的应用

Abstract: The simple 3-D radiative transfer model in the atmosphere of the Earth is built for numerical comparison of direct solar radiation and limb scattering background at the definite layer during the deep twilight period at the middle and upper atmosphere. This allows finding the contribution of multiple scattering in the field of high-altitude clouds such as polar stratospheric and noctilucent clouds. This is the factor that can influence the results of altitude and microphysical study of the particles based on the approximation of single scattering. The possible errors caused by this effect are estimated together with the contribution of multiple scattering for different altitudes of the clouds, wavelengths and solar zenith angles. The results are interpreted geometrically and optically, color effects observed for noctilucent clouds are described. Show Chinese abstract

Abstract: 用于地球大气中直接太阳辐射和边缘散射背景在深暮期间特定层的数值比较的简单三维辐射传输模型建立起来。这有助于确定多散射在高层云如极地平流层云和夜光云领域中的贡献。这是可能影响基于单次散射近似进行的粒子高度和微物理研究结果的因素。这种效应引起的可能误差与不同云层高度、波长和太阳天顶角的多散射贡献一起被估算。结果从几何和光学角度进行解释，描述了对夜光云观察到的颜色效应。