论文标题
冰和火星土壤模拟协会的反射研究-I。H $ _2 $ o冰
Reflectance study of ice and Mars soil simulant associations -- I. H$_2$O ice
论文作者
论文摘要
除其他参数外，水冰和灰尘混合物的反射率取决于如何混合组件（例如，亲密混合物，面积混合物或涂料）（Clark等，1999）。因此，当反转从行星表面测得的反射光谱以得出表面上存在的水冰量时，至关重要的是区分不同的冰和灰尘混合模式。但是，反射光谱的混合模式之间的区别仍然模棱两可。在这里，我们展示了如何从定义的光谱标准和实验室混合物的颜色分析的研究中鉴定出一些水冰/土壤混合模式。我们已经重新创建了冰和灰尘混合物，发现霜在表面上的外观会增加其反射率并使其光谱斜率变平，而在亲密混合物中，水冰的存在不断增加，主要影响吸收带。特别是，我们提供实验室数据和光谱分析，以帮助解释来自火星表面的冰和土壤反射光谱。
The reflectance of water ice and dust mixtures depends, amongst other parameters, on how the components are mixed (e.g. intimate mixture, areal mixture or coating) (Clark et al. 1999). Therefore, when inverting the reflectance spectra measured from planetary surfaces to derive the amount of water ice present at the surface, it is critical to distinguish between different mixing modes of ice and dust. However, the distinction between mixing modes from reflectance spectra remains ambiguous. Here we show how to identify some water ice/soil mixing modes from the study of defined spectral criteria and colour analysis of laboratory mixtures. We have recreated ice and dust mixtures and found that the appearance of frost on a surface increases its reflectance and flattens its spectral slopes, whereas the increasing presence of water ice in intimate mixtures mainly impacts the absorption bands. In particular, we provide laboratory data and a spectral analysis to help interpret ice and soil reflectance spectra from the Martian surface.
