Radar backscattering by the icy Galilean satellites and the radar glory effect

Details Radar backscattering by the icy Galilean satellites and the radar glory effect Radar backscattering by the icy Galilean satellites and the radar glory effect

Jun 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..320g&link_type=abstract

In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 320-322 (SEE N92-10728 01-91)

Physics

Geophysics

Backscattering, Galilean Satellites, Icy Satellites, Radar Echoes, Radar Scattering, Craters, Mathematical Models, Refraction, Refractivity, Surface Properties

Scientific paper

Radar echoes from the icy Galilean satellites are unique in character and they may be explained by a phenomenon that was called the radar glory effect. The radar glory backscattering from buried craters was analyzed as a possible model for this effect. These craters have a smaller refractive index below the crater than above. The possibility exists that the rays will be totally internally reflected at the crater walls. The rays which contribute to the backscattering will come from a circular annulus, when viewed before the refraction occurs at the ice-vacuum surface, in a plane orthogonal to the rays reflected from the crater.

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