MRO CRISM TARGETED EMPIRICAL RECORD V1.0

Post-processing attempts to represent the spectrum the instrument would have measured looking at the surface of Mars at a standard illumination geometry, in the absence of atmospheric gases, with aerosol scattering normalized to that at the geometry within the observation that is closest to nadir, in the absence of instrument artifacts.

A series of value added products represent spatial variability in signatures of minerals of interest. The data are still in sensor space, allowing map projection using terrain models of the Martian surface that are of better accuracy or spatial resolution than was used to generate the companion Map-projected Targeted Reduced Data Record (MTR) archive.