iceFEM: a FreeFem package for wave induced ice-shelf vibrations

• Main Authors: Kalyanaraman, Balaje, Meylan, Michael H., Lamichhane, Bishnu P., Bennetts, Luke G.
• Other Authors: The University of Newcastle. College of Engineering, Science & Environment, School of Information and Physical Sciences
• Format: Article in Journal/Newspaper
• Language: English
• Published: Open Journals 2021
• Subjects: vibrations; ice-shelves; ocean waves; icebergs; Antarctic; Holdsworth; Ross Ice Shelf; Sulzberger Ice Shelf; Antarc*; Ice Shelf; Ice Shelves; Iceberg*
• Online Access: http://hdl.handle.net/1959.13/1462071

Vibrations of ice-shelves in response to ocean waves were first investigated by Holdsworth & Glynn (1978) who proposed that resonant vibrations lead to icebergs calving from the shelf front. Since then seismometric measurements on the Ross ice-shelf, the largest Antarctic ice-shelf, confirmed the presence of this ocean wave-induced ice-shelf vibration (Bromirski et al., 2015; Massom et al., 2018). The period of vibration ranged from the long infragravity/tsunami waves to shorter, swell waves. More recently, Brunt et al. (2011) presented the first observational evidence that a Northern Hemisphere tsunami triggered calving on the Sulzberger ice shelf. Mathematical models based on linear wave theory have been proposed to study these ocean-wave induced ice-shelf vibrations.