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Spaceborne Synthetic Aperture Radar Remote Sensing
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subsurface and ice pipes, by which the return radar echoes are inuenced to the greatest extent, and
single scattering from rn deeply trapped under layers of snow or solidied ice bodies.
According to various studies, in the accumulation zone shown in Figure 11.10, wet snow, dry
snow, and the percolation zone are found in most of the area. While comparing the result with
H- A- α decomposition, high CPR value of more than 1 is found, as the ratio increases with sur-
face roughness. Strong radar echoes from the under surface occur because of the presence of ice
in the subsurface, which is due to seasonal melting and refreezing of snow or concentrated buried
ice bodies causing volume type ...