月面热环境的反演研究

以嫦娥三号巡视器月面日食期间非稳态的温度遥测数据为基础，通过建立月壤及巡视器的传热模型，反演了日食期间月面温度的变化，并给出了符合巡视器温度遥测的月壤热物性参数取值范围。在此基础上，对月面热环境进行了分析研究。结果表明，本文反演的月壤平均导热系数大于常见取值，而比热却明显小于常见取值。采用反演的热物性值计算的月表温度与之前认识相符，但对月壤内部热环境有新发现，其温度梯度相对减小而恒温层厚度则明显增大。

Inversion of Thermal Environment of Lunar Surface

Based on the telemetry data of the unsteady temperature of the Chang’E-3 rover during the moon eclipse, this paper retrieves the temperature variation of the lunar surface during the eclipse by constructing a heat transfer model between the lunar soil and the rover. And then the parameter ranges of the thermophysical properties of the lunar soil are derived. The thermal environment of the lunar surface is analyzed and researched on this basis. The result shows that the average inversed thermal conductivity is larger than the common value, while the specific heat is much lower than its common value. The temperature of the lunar surface calculated by using the inversed thermophysical properties matches the previous understanding. But there is a new discovery on the internal thermal environment of the lunar soil that the temperature gradient is smaller and the constant temperature layer is thicker than those that are revealed in the previous study.