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Measurement of acoustic attenuation in South Pole ice

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Authors
Abbasi, R.
Abdou, Y.
Abu-Zayyad, T.
Adams, J.
Aguilar, J.
Ahlers, M.
Andeen, K.
Auffenberg, J.
Bai, X.
Baker, M.
Barwick, S.
Bay, R.
Bazo Alba, J.
Beattie, K.
Beatty, J.
Bechet, S.
Becker, J.
Becker, K.
Benabderrahmane, M.
Berdermann, J.
Berghaus, P.
Berley, D.
Bernardini, E.
Bertrand, D.
Besson, D.
Bissok, M.
Blaufuss, E.
Boersma, D.
Bohm, C.
Böser, S.
Botner, O.
Bradley, L.
Braun, J.
Buitink, S.
Carson, Michael
Chirkin, D.
Christy, B.
Clem, J.
Clevermann, F.
Cohen, S.
Colnard, C.
Cowen, D.
D'Agostino, M.
Danninger, M.
De Clercq, C.
Demirörs, L.
Depaepe, O.
Descamps, F.
Desiati, P.
De Vries-Uiterweerd, G.
Deyoung, T.
Díaz-Vélez, J.
Dreyer, J.
Dumm, J.
Duvoort, M.
Ehrlich, R.
Eisch, J.
Ellsworth, R.
Engdegrd, O.
Euler, S.
Evenson, P.
Fadiran, O.
Fazely, A.
Feusels, T.
Filimonov, K.
Finley, C.
Foerster, M.
Fox, B.
Franckowiak, A.
Franke, R.
Gaisser, T.
Gallagher, J.
Ganugapati, R.
Geisler, M.
Gerhardt, L.
Gladstone, L.
Glüsenkamp, T.
Goldschmidt, A.
Goodman, J.
Grant, D.
Griesel, T.
Groß, A.
Grullon, S.
Gunasingha, R.
Gurtner, M.
Gustafsson, L.
Ha, C.
Hallgren, A.
Halzen, F.
Han, K.
Hanson, K.
Helbing, K.
Herquet, P.
Hickford, S.
Hill, G.
Hoffman, K.
Date
2011
Type
Journal Article
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Abstract

Using the South Pole Acoustic Test Setup (SPATS) and a retrievable transmitter deployed in holes drilled for the IceCube experiment, we have measured the attenuation of acoustic signals by South Pole ice at depths between 190 m and 500 m. Three data sets, using different acoustic sources, have been analyzed and give consistent results. The method with the smallest systematic uncertainties yields an amplitude attenuation coefficient α = 3.20 ± 0.57 km−1 between 10 and 30 kHz, considerably larger than previous theoretical estimates. Expressed as an attenuation length, the analyses give a consistent result for λ ≡ 1/α of ~300 m with 20% uncertainty. No significant depth or frequency dependence has been found.

Citation
Abbasi, R. and Abdou, Y. and Abu-Zayyad, T. and Adams, J. and Aguilar, J. and Ahlers, M. and Andeen, K. et al. 2011. Measurement of acoustic attenuation in South Pole ice. Astroparticle Physics. 34 (6): pp. 382-393.
Source Title
Astroparticle Physics
URI
DOI
Department
Department of Exploration Geophysics
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