Elastic wave propagation in anisotropic polycrystals: inferring physical properties of glacier ice

• Published in: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
• Main Authors: Rathmann, Nicholas M., Grinsted, Aslak, Mosegaard, Klaus, Lilien, David A., Westhoff, Julien, Hvidberg, Christine S., Prior, David J., Lutz, Franz, Thomas, Rilee E., Dahl-Jensen, Dorthe
• Other Authors: Danmarks Frie Forskningsfond, Villum Fonden
• Format: Article in Journal/Newspaper
• Language: English
• Published: The Royal Society 2022
• Subjects: Priestley; Priestley Glacier; Antarc*; Antarctica; ice core
• Online Access: http://dx.doi.org/10.1098/rspa.2022.0574; https://royalsocietypublishing.org/doi/pdf/10.1098/rspa.2022.0574; https://royalsocietypublishing.org/doi/full-xml/10.1098/rspa.2022.0574

An optimization problem is proposed for inferring physical properties of polycrystals given ultrasonic (elastic) wave velocity measurements, made across multiple sample orientations. The feasibility of the method is demonstrated by inferring both the effective grain elastic parameters and the grain...