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Askebjer et al. 1997

Askebjer, P., Barwick, S.W., Bergström, L., Bouchta, A., Carius, S., Dalberg, E., Erlandsson, B., Goobar, A., Gray, L., Hallgren, A., Halzen, F., Heukenkamp, H., Hulth, P.O., Hundertmark, S., Jacobsen, J., Kandhadai, V., Karle, A., Liubarsky, I., Lowder, D., Miller, T., Mock, P., Morse, R., Porrata, R., Price, P.B., Richards, A., Rubinstein, H., Schneider, E., Spiering, C., Streicher, O., Sun, Q., Thon, T., Tilav, S., Wischnewski, R., Walck, C. and Yodh, G. (1997). UV and optical light transmission properties in deep ice at the South Pole. Geophysical Research Letters 24: doi: 10.1029/97GL01246. issn: 0094-8276.

Both absorption and scattering of light at wavelengths 410 to 610 nanometers were measured in the South Pole ice at depths 0.8 to 1 kilometer with the laser calibration system of the Antarctic Muon And Neutrino Detector Array (AMANDA). At the shortest wavelengths the absorption lengths exceeded 200 meters-an order of magnitude longer than has been reported for laboratory ice. The absorption shows a strong wavelength dependence while the scattering length is found to be independent of the wavelength, consistent with the hypothesis of a residual density of air bubbles in the ice. The observed linear decrease of the inverse scattering length with depth is compatible with an earlier measurement by the AMANDA cmllaboration (at ~515 nanometers).¿ 1997 American Geophysical Union

BACKGROUND DATA FILES

	Abstract

Keywords
Electromagnetics, Optics, Solar Physics, Astrophysics, and Astronomy, X rays, gamma rays, and neutrinos, Information Related to Geographic Region, Antarctica

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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