Radar detection of subsurface features on Mars

Details Radar detection of subsurface features on Mars Radar detection of subsurface features on Mars

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004adspr..33.2263k&link_type=abstract

Advances in Space Research, Volume 33, Issue 12, p. 2263-2269.

Physics

Remote Sensing, Mars Exploration, Radar Subsurface Detection, Surface Scattering

Scientific paper

The structure of the pulse radar signal reflected from continuously changing layered Martian crust is investigated theoretically. As a simple model of stratigraphy, we considered one layer with electrodynamics' parameters increasing or decreasing exponentially upon a depth laying on monolith base and covered by homogeneous layer. This exponential changing of electromagnetic properties of the layer is assumed due to exponential changing of porosity (or saturation) in the bedrocks with pores filled by seawater. The conditions of subsurface features resolution are obtained. It is shown that the sign and value for gradient of the electromagnetic properties change can be resolved from the reflection peaks trend. These results are important for subsurface detection of liquid water on Mars by orbit-based radars.

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