2008/11/07 by T. Karg, Timo Karg · 1 citation
Physics and Astronomy · #Acoustics #Ambient noise level #Astrophysics #Astrophysics and Cosmic Phenomena #Computer science #Environmental science #Geology #Neutrino #Neutrino Physics Research #Noise (video) #Observatory #Physics #Radio Astronomy Observations and Technology #Sound (geography) #astro-ph
paper · pdf · doi:10.1016/j.nima.2009.03.063
published as Nucl.Instrum.Meth.Suppl.A604:171-174,2009 · Presented at the 3rd International Workshop on the Acoustic and Radio EeV Neutrino detection Activities (ARENA 2008)
arxiv created 2008/11/07 · openalex publication_date 2009/03/23 · arxiv updated 2019/08/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.