Reflectance study of ice and Mars soil simulant associations - I. H2O ice
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Reflectance study of ice and Mars soil simulant associations - I. H2O ice. / Yoldi, Zurine; Pommerol, Antoine; Poch, Olivier; Thomas, Nicolas.
I: Icarus, Bind 358, 114169, 01.04.2021.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Reflectance study of ice and Mars soil simulant associations - I. H2O ice
AU - Yoldi, Zurine
AU - Pommerol, Antoine
AU - Poch, Olivier
AU - Thomas, Nicolas
PY - 2021/4/1
Y1 - 2021/4/1
N2 - 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). 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.
AB - 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). 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.
KW - Reflectance
KW - Water-ice
KW - Mixture
KW - Mars
KW - Frost
U2 - 10.1016/j.icarus.2020.114169
DO - 10.1016/j.icarus.2020.114169
M3 - Journal article
VL - 358
JO - Icarus
JF - Icarus
SN - 0019-1035
M1 - 114169
ER -
ID: 258081734