North is to the bottom of the page.
The cube sides represent color-coded reflectance spectra for the pixels along the edges of the image. The color scheme of black, blue, green, yellow, red, and white indicates increasing reflectance. These data are used together in a hierarchical strategy for geologic mapping and exploration utilizing Landsat to provide an overview and to locate targets for more detailed study, the hyperspectral data for mineral species and abundance mapping, and field mapping and field spectroscopy for verification. Commercialization of hyperspectral systems is underway, and these data will soon be widely available. Commercial aircraft systems are being flown now, and several satellite systems are planned for deployment by the year 2000.