Fig. 6
From: Exposed soil and mineral map of the Australian continent revealing the land at its barest
Comparison of soil spectra to the Barest Earth spectra and a vegetated observation at various locations across Australia. a A selection of the NGSA sample spectra (black) across the continent compared to the Barest Earth (magenta) and the clear vegetated observation (green). Spectra have been normalised as \(x/||x||\) for observation vector x to remove parallel albedo shifts. b Sample locations where the sample identifiers are given and can be referenced back to the NGSA dataset.
