Conveners
Modeling and measurements of optical and radio propagation in birefringent ice
- Delia Tosi (University of Wisconsin-Madison)
The IceCube Neutrino Observatory instruments about 1 km3 of deep, glacial ice at the geographic South Pole with 5160 photomultipliers to detect Cherenkov light of charged relativistic particles. The experiment pursues a wide range of scientific questions ranging from particle physics such as neutrino oscillations to astronomy with the search for sources of astrophysical neutrinos. Most of...
We report on the observation of a directional anisotropy in the recorded intensity of back-scattered light as measured using an oriented laser dust logger. The measurement has been performed in a drill hole at the geographic South Pole, about a kilometer away from the IceCube Neutrino Observatory. The drill hole was preserved for logging access, after the SPICEcore collaboration had retrieved...
Ice-penetrating radar is able to detect anisotropy through exploiting the birefringence of ice crystals, and this technique has aided quantification of the horizontal properties of the ice crystal orientation fabric (COF) at multiple sites across the Antarctic Ice Sheet. These techniques have not only been verified through multiple comparisons with ice cores, but also have been subsequently...
The climatic conditions over ice sheets at the time of snow deposition imprint distinctive crystallographic properties to the resulting ice. As it gets buried, its macroscopic structure evolves due to vertical compression and horizontal extension but retains traces of the climatic imprint that generate distinctive mechanical, thermal and optical properties. Because climate alternates between...
The IceCube-Gen2 radio array is an ambitious augmentation to IceCube-Gen2, seeking to extend the ultra-high energy neutrino detection reach above 10 PeV. Consisting of 200 multi-channel 'stations' deployed over a surface area of ~500 km^2, such an array also offers significant radioglaciological science. We'll summarize plans to calibrate South Polar radio ice properties necessary for neutrino...
