The paper offers a numerical simulation of the heat state for a two-layer semitransparent medium that imitates a hypothetical snow cover upon an opaque semi-infinite substrate; the layers of cover have different absorption and scattering coefficients. Computations were performed for key parameters typical of winter season. It was shown that, depending on the optical thickness of every layer and proportions of absorption to scattering in the incident radiation, we observe more intense heating of near-surface or deeper zones in the snow-ice medium. The radiation part of problem was solved using a modified average-flux method used to take into account the dependency of optical properties on the wavelength of incident radiation, scattering, and reflectance at the layers boundaries.

中文翻译：

---

两个半透明层系统中光学性质对辐射传导热传递的影响

本文提供了一个两层半透明介质热状态的数值模拟，该介质在不透明的半无限基底上模拟了假定的积雪。覆盖层具有不同的吸收系数和散射系数。对冬季典型的关键参数进行了计算。结果表明，根据每一层的光学厚度以及入射辐射中吸收与散射的比例，我们观察到雪冰介质中近地表或更深区域的加热更加强烈。使用改进的平均通量方法解决了问题的辐射部分，该方法用于考虑光学特性对入射辐射波长，散射和层边界反射率的依赖性。