EGU21-13620
https://doi.org/10.5194/egusphere-egu21-13620
EGU General Assembly 2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Theoretical modelling of ice shelf vibrations forced by ocean surface waves

Luke Bennetts1, Mike Meylan2, Balaje Kalyanaraman2, and Bishnu Lamichhane2
Luke Bennetts et al.
  • 1University of Adelaide, School of Mathematical Sciences, Adelaide, Australia (luke.bennetts@adelaide.edu.au)
  • 2University of Newcastle, School of Mathematical and Physical Sciences, Australia

Seismic measurements show that ice shelves vibrate in response to ocean surface waves over a wide frequency range, from long swell to tsunami waves. The phenomenon of wave-induced ice-shelf vibrations has been linked to calving of large icebergs, rift propagation, icequake activity, and triggering of catastrophic disintegrations. I will present some recent advances in theoretical modelling of wave-induced ice-shelf vibrations, including coupling of the ice shelf/sub-shelf cavity to the open ocean, studying the influence of ice-shelf thickening and seabed shoaling towards the grounding line, simulating transient vibrations in response to incident wave packets, and incorporation of real ice-shelf and seabed geometries via the BEDMAP2 dataset. I will introduce the open-source software iceFEM, which contains many of the latest advances. 

How to cite: Bennetts, L., Meylan, M., Kalyanaraman, B., and Lamichhane, B.: Theoretical modelling of ice shelf vibrations forced by ocean surface waves, EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-13620, https://doi.org/10.5194/egusphere-egu21-13620, 2021.

Corresponding presentation materials formerly uploaded have been withdrawn.