Optical properties of deep ice at the South Pole: absorption
Optical properties of deep ice at the South Pole: absorption
We discuss recent measurements of the wavelength-dependent absorption coefficients in deep South Pole ice. The method uses transit-time distributions of pulses from a variable-frequency laser sent between emitters and receivers embedded in the ice. At depths of 800–1000 m scattering is dominated by residual air bubbles, whereas absorption occurs both …