Fig. 16From: Estimation of bulk permittivity of the Moon’s surface using Lunar Radar Sounder on-board Selenological and Engineering ExplorerCorrelation between the bulk permittivity of the 1st layer, ε1, and the surface metal content in lunar maria under study. A regression line is drawn in red. The error bars of ε1 were calculated using values of ε1 and their 95% confidence intervals shown in Figs. 12, 13, 14 and 15Back to article page