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Reflections from internal layers
Depolarization of radio echo returns
2 other sections not shown
amplitude increase angle of incidence angular dependance anisotropy ANTENNA approximately ash bands Auty and Cole azimuthal angle Bogorodsky bottom reflection boundary Byrd Station c-axes c-axis calculated changes in crystal cm thick common reflection point corresponding critical angle cross-polarization amplitudes crystal orientation density variations depolarization determine dielectric constant dielectric relaxation direct wave dust bands East Antarctica echo strength error estimate frequency function geometrical optics half-space horizontal Humbel i i i i ice thickness impedance internal layers internal reflections Jiracek lateral wave linear depolarization maximum medium meters molecule obtained parallel perpendicular polarization produce protons pulse width radiation pattern radio echo sounding radio waves range ray paths recorded reflection coefficient reflector depth refraction Robin Ross Ice Shelf rough surface shown in fig signal single layer Skelton glacier snow surface surface density temperature thickness and spacing travel time plot velocity-depth vertical wave number wide-angle reflection measurement zone of layers