Wisdom GPR measurements in a cold artificial and controlled environment

Monique Dechambre (1) , Marc Biancheri-Astier (2) , Valérie Ciarletti (1) , Sophie Dorizon (1) , Rafik Hassen-Khodja (3) , Albane Saintenoy (2) , F. Costard (2) , A. Sejourne (2)

1 ESTER - LATMOS
2 IDES - Interactions et dynamique des environnements de surface
3 LATMOS - Laboratoire Atmosphères, Milieux, Observations Spatiales

The WISDOM (500MHz - 3GHz) GPR is one of the instruments that have been selected as part of the Pasteur payload of ESA's 2018 ExoMars Rover mission. One of the main scientific objectives of the mission is to characterize the nature of the shallow sub-surface on Mars and WISDOM has been designed to explore the first ∼ 3 meters of the sub-surface with a vertical resolution of a few centimetres. In order to illustrate and quantify the WISDOM performance, measurements in cold artificial and controlled conditions have been performed by the prototype. The objectives of this experiment were the detection of home made internal layering and the possible detection of a wedge included in the permafrost filled with different material with known characteristics. Some results and comparisons with a simple simulation are presented here and show the WISDOM performances.

Domaines: Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]; Instrumentation et méthodes pour l'astrophysique [astro-ph.IM]; Planétologie et astrophysique de la terre [astro-ph.EP]; Planétologie et astrophysique de la terre [astro-ph.EP]

Monique Dechambre, Marc Biancheri-Astier, Valérie Ciarletti, Sophie Dorizon, Rafik Hassen-Khodja, et al.. Wisdom GPR measurements in a cold artificial and controlled environment. IEEE International Geoscience and Remote Sensing Symposium (IGARSS), Jul 2012, Guyancourt, France. pp.606-609, ⟨10.1109/IGARSS.2012.6351521⟩. ⟨hal-00753818⟩