ROMA: A Database of Rock Reflectance Spectra for Martian In Situ Exploration

Autor: L. Mandon, P. Beck, C. Quantin‐Nataf, E. Dehouck, P. Thollot, D. Loizeau, M. Volat
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Earth and Space Science, Vol 9, Iss 1, Pp n/a-n/a (2022)
Druh dokumentu: article
ISSN: 2333-5084
84545879
DOI: 10.1029/2021EA001871
Popis: Abstract The ROMA database (ROck reflectance for MArtian in situ exploration, 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.
Databáze: Directory of Open Access Journals
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