Publication
Reference
Mandon L., Beck P., Quantin-Nataf C., Dehouck E., Thollot P., Loizeau D., Volat M. (2022). ROMA: A Database of Rock Reflectance Spectra for Martian In Situ Exploration. Earth Space Sci., 9, e01871.
Names
  • L. Mandon
  • P. Beck
  • C. Quantin-Nataf
  • E. Dehouck
  • P. Thollot
  • D. Loizeau
  • M. Volat
Article and keywords
Title
ROMA: A Database of Rock Reflectance Spectra for Martian In Situ Exploration
Abstract
The ROMA database (ROck reflectance for MArtian in situ exploration, https://roma.univ-lyon1.fr; https://roma.univ-lyon1.fr) provides the reflectance spectra between 0.4 and 3-4 μm of various terrestrial, Martian, and synthetic samples, as a means to document reference measurements for comparison with data acquired by visible and near-infrared spectrometers on planetary surfaces, with a focus on current and future Martian observations by the Perseverance (Mars 2020 mission) and Rosalind Franklin (ExoMars) rovers. The main specificity of this database is to include a significant fraction of spectra of unprocessed rock, which are more realistic analogs and often have different spectral features than the fine powders more commonly analyzed in reflectance spectroscopy. Additionally, these measurements were acquired with a spectrometer whose spot size is similar to those of the SuperCam instrument (Mars 2020 mission) at a few meters from a target. Supplementary information are provided in the ROMA database: higher-level data (such as absorption band parameters) as well as sample mineralogy estimated by whole-rock X-ray diffraction analyses. Future comparisons with this database will help improve the interpretation of spectral measurements acquired on the Martian surface. This work introduces the aim of the library and its current state, but additional data on intact natural rock surfaces will likely be added in the future.
Keywords
reflectance spectroscopy, rocks, Martian rovers, database, spectro-gonio radiometer, bidirectional reflection, bidirectional reflectance spectra, visible, near-IR, mineral, carbonates, olivine, phyllosilicates, serpentine, vermiculite, kaolinite, montmorillonite, basalt, gabbro, andesite, diorite, paleosol, trachyte, dacite, planet surface, Mars
Content
spectral data, sample, planetary sciences
Year
2022
Journal
Earth and Space Science
Volume
9
Number
1
Pages
e01871
Document type
article
Publication state
published
Doi
10.1029/2021EA001871
Identifiers