Three-dimensional imaging of waves and floes in the marginal ice zone during a cyclone

Alberto Alberello (), Luke G. Bennetts, Miguel Onorato, Marcello Vichi, Keith MacHutchon, Clare Eayrs, Butteur Ntamba Ntamba, Alvise Benetazzo, Filippo Bergamasco, Filippo Nelli, Rohinee Pattani, Hans Clarke, Ippolita Tersigni and Alessandro Toffoli
Additional contact information
Alberto Alberello: University of Adelaide
Luke G. Bennetts: University of Adelaide
Miguel Onorato: Università di Torino
Marcello Vichi: University of Cape Town
Keith MacHutchon: University of Cape Town
Clare Eayrs: New York University Abu Dhabi
Butteur Ntamba Ntamba: Cape Peninsula University of Technology
Alvise Benetazzo: Istituto di Scienze Marine, Consiglio Nazionale delle Ricerche
Filippo Bergamasco: Università Ca’ Foscari
Filippo Nelli: Swinburne University of Technology
Rohinee Pattani: Atkins
Hans Clarke: The University of Melbourne
Ippolita Tersigni: The University of Melbourne
Alessandro Toffoli: The University of Melbourne

Nature Communications, 2022, vol. 13, issue 1, 1-11

Abstract: Abstract The marginal ice zone is the dynamic interface between the open ocean and consolidated inner pack ice. Surface gravity waves regulate marginal ice zone extent and properties, and, hence, atmosphere-ocean fluxes and ice advance/retreat. Over the past decade, seminal experimental campaigns have generated much needed measurements of wave evolution in the marginal ice zone, which, notwithstanding the prominent knowledge gaps that remain, are underpinning major advances in understanding the region’s role in the climate system. Here, we report three-dimensional imaging of waves from a moving vessel and simultaneous imaging of floe sizes, with the potential to enhance the marginal ice zone database substantially. The images give the direction–frequency wave spectrum, which we combine with concurrent measurements of wind speeds and reanalysis products to reveal the complex multi-component wind-plus-swell nature of a cyclone-driven wave field, and quantify evolution of large-amplitude waves in sea ice.

Date: 2022
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DOI: 10.1038/s41467-022-32036-2

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