Numerical simulations are required to thermophysically characterize Oxia Planum, the landing site of the mission ExoMars 2022. A drilling system is installed on the ExoMars rover, and it will be able to analyze down to 2 meters in the subsurface of Mars. The spectrometer Ma_MISS (Mars Multispectral Imager for Subsurface, Coradini and Da Pieve, 2001) will investigate the lateral wall of the borehole generated by the drill, providing hyperspectral images. It is not fully clear if water ice can be found in the subsurface at Oxia Planum. However, Ma_MISS has the capability to characterize and map the presence of possible ices, in particular water ice. We performed simulations of the subsurface temperatures by varying the thermal inertia, and we quantified the effects of self-heating. Moreover, we quantified the heat released by the drilling operations, by exploring different frictional coefficients and angular drill velocities, in order to evaluate the lifetime of possible water ice.

中文翻译：

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ExoMars 2022 着陆点 Oxia Planum 的地下热建模

需要进行数值模拟来对 ExoMars 2022 任务的着陆点 Oxia Planum 进行热物理表征。 ExoMars 漫游车上安装了一个钻井系统，它将能够分析深达 2 米的火星地下。光谱仪 Ma_MISS（Mars Multispectral Imager for Subsurface，Coradini 和 Da Pieve，2001 年）将调查钻孔产生的钻孔侧壁，提供高光谱图像。是否可以在 Oxia Planum 的地下发现水冰尚不完全清楚。然而，Ma_MISS 有能力表征和绘制可能存在的冰，尤其是水冰。我们通过改变热惯性对地下温度进行了模拟，并量化了自加热的影响。此外，我们量化了钻井作业释放的热量，