NIR reflectance spectra of two mixtures of CO2 snow and H2O ice (0.1%, 1.5%) submitted to slow sublimation under illumination

NIR reflectance spectra of two $CO_2$ snow samples with different abundances of $H_2O$ ice (0.1wt%, 1.5wt%) deposited over a layer of volcanic tuff, and submitted to progressive sublimation under illumination两种含不同含量水冰（H₂O ice）（0.1wt%、1.5wt%）的二氧化碳（CO₂）雪样品的近红外（Near-Infrared, NIR）反射光谱，这些样品沉积于一层火山凝灰岩之上，并在光照条件下经历渐进式升华。