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Published June 2014 | Published
Journal Article Open

Revised CRISM spectral parameters and summary products based on the currently detected mineral diversity on Mars

Abstract

The investigation of hyperspectral data from the Mars Reconnaissance Orbiter Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) and the Observatoire pour la Minéralogie, L'Eau, les Glaces et l'Activitié (OMEGA) on Mars Express has revealed an increasingly diverse suite of minerals present on the Martian surface. A revised set of 60 spectral parameters derived from corrected spectral reflectance at key wavelengths in CRISM targeted observations and designed to capture the known diversity of surface mineralogy on Mars is presented here as "summary products." Some of the summary products have strong heritage to OMEGA spectral parameter calculations; this paper also presents newly derived parameters that highlight locations with more recently discovered spectral signatures. Type locations for the diversity of currently identified mineral spectral signatures have been compiled into a library presented in this work. Our analysis indicates that the revised set of summary products captures the known spectral diversity of the surface, and successfully highlights and differentiates between locations with differing spectral signatures. The revised spectral parameter calculations and related products provide a useful tool for scientific interpretation and for future mission landing site selection and operations.

Additional Information

© 2014 American Geophysical Union. Received 28 FEB 2014; Accepted 2 JUN 2014; Accepted article online 5 JUN 2014; Published online 26 JUN 2014. The authors would like to thank the CRISM team for internal review of the updated summary products, particularly Janice Bishop, Jennifer Buz, Christopher Edwards, Tim Goudge, Laetitia Loncan, Mario Parente, Cedric Pilorget, and James Wray. John Carter provided pixel locations for the epidote observation, Richard Morris provided the hydroxyl ferric sulfate spectra, and David Humm provided guidance in the 1 μm offset correction. Lastly, we would like to thank Stéphane Le Mouélic and two anonymous reviewers for their thoughtful comments that improved this manuscript. This work was made possible through funding from the MRO Project to the CRISM team.

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Created:
August 22, 2023
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October 18, 2023