Guide to Magellan Image Interpretation

Figure 8-2. Schematic cross-sections show radar responses of troughs.

 

Figure 8-2. Schematic cross-sections show radar responses of troughs. (a) The foreslope is bright because of strong returns caused by the combination of the slope and small-scale roughness of the surface. The backslope is concealed by radar shadow and the area appears black. Backslopes are not seen when the surface slope exceed the nominal incidence angle Greek letter theta
.Radar image and interpretative cross section of the rift valley, Guor Linea (18.8°N,0.3°E). In areas such as this where the slope of the scarp is less than the incidence angle (45 deg), the radar can image the surfaces of backslopes.


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