An in situ measurement of the radio-frequency attenuation in ice at Summit Station, Greenland
Vieregg, Abigail G.
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CitationAvva, Jessica, John M. Kovac, Christian Miki, David Saltzberg, and Abigail G. Vieregg. 2015. “An in Situ Measurement of the Radio-Frequency Attenuation in Ice at Summit Station, Greenland.” Journal of Glaciology 61 (229) (November 4): 1005–1011. doi:10.3189/2015jog15j057.
AbstractWe report an in situ measurement of the electric field attenuation length Lα at radio frequencies for the bulk ice at Summit Station, Greenland, made by broadcasting radio-frequency signals vertically through the ice and measuring the relative power in the return ground bounce signal. We find the depth-averaged field attenuation length to be hLαi = 947+92 −85 m at 75 MHz. While this measurement has clear radioglaciological applications, the radio clarity of the ice also has implications for the detection of ultra-high energy (UHE) astrophysical particles via their radio emission in dielectric media such as ice. Assuming a reliable extrapolation to higher frequencies, the measured attenuation length at Summit Station is comparable to previously measured radio-frequency attenuation lengths at candidate particle detector sites around the world, and strengthens the case for Summit Station as a promising northern site for UHE neutrino detection.
Citable link to this pagehttp://nrs.harvard.edu/urn-3:HUL.InstRepos:33445978
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