This data set contains high-level map
       products derived from observational data acquired by the Observatoire
       pour la Mineralogie, l'Eau, les Glaces et l'Activite (OMEGA) imaging
       spectrometer on board the Mars Express (MEX) spacecraft.

       Meant to be evolutive, the first release of this data set contains 8
       global maps of the surface albedo and minerals on Mars. They constitutes
       an unique atlas which enables to study locally the surface of Mars in a
       global context, to retrieve the processes and events that paved Mars
       evolution, to look back in time in Mars' history and to identify regions
       of strong interest for future exploration.

UNK