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The Phase Response of a Rough Rectangular Facet for Radar Sounder Simulations of Both Coherent and Incoherent Scattering

Gerekos, C.; Haynes, M. S.; Schroeder, D. M. +1 more

With radar sounders, coherent backscattering simulations from global planetary digital elevation models (DEMs) typically display a deficit in diffuse clutter, which is mainly due to the implicit assumption that roughness at scales below the resolution of the DEM is absent. Indeed, while polynomial approximations of the phase evolution across the f…

Analysis of Two Selected Solar Events in 2011 and 2015 With Mars Express Radio Occultation Data

Witasse, Olivier; Sánchez-Cano, Beatriz; Karatekin, Ozgur +3 more

The temporal behavior of the Martian ionosphere is highly variable due to various dynamic processes including space weather events. Here, we study the effect of solar flares and coronal mass ejections (CMEs) on the Martian ionosphere for two selected solar events in 2011 and 2015, using the publicly available Mars EXpress (MEX) radio occultation (…