Acoustic noise in deep ice and environmental conditions at the South Pole
arXiv:0811.1099 · doi:10.1016/j.nima.2009.03.063
Abstract
To study the acoustic properties of the Antarctic ice the South Pole Acoustic Test Setup (SPATS) was installed in the upper part of drill holes for the IceCube neutrino observatory. An important parameter for the design of a future acoustic neutrino telescope is the acoustic background noise in the ice and its spatial and temporal variations. We study the absolute noise level depth profile from SPATS data and discuss systematic uncertainties. The measured noise is very stable over one year of data taking, and we estimate the absolute noise level to be < 10 mPa in the frequency range from 10 kHz to 50 kHz at depths below 200 m. This noise level is of the same order of magnitude as observed by ocean based acoustic neutrino detection projects in good weather conditions.
Presented at the 3rd International Workshop on the Acoustic and Radio EeV Neutrino detection Activities (ARENA 2008)
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Cited by in corpus (6)
- Measurement of Acoustic Attenuation in South Pole Ice
- Measurement of sound speed vs. depth in South Pole ice for neutrino astronomy
- Measurement of acoustic properties of South Pole ice for neutrino astronomy
- Status and recent results of the South Pole Acoustic Test Setup
- Simulation of a hybrid optical-radio-acoustic neutrino detector at the South Pole
- Acoustic detection of astrophysical neutrinos in South Pole ice