Journal
NATURE COMMUNICATIONS
Volume 13, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41467-022-32036-2
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Funding
- South African National Antarctic Programme through the National Research Foundation
- Ferring Pharmaceuticals
- Australian Antarctic Science Programme [4434]
- Japanese Society for the Promotion of Science [PE19055]
- Australian Research Council [FT190100404, DP200102828]
- Simons Collaboration onWave Turbulence [617006]
- Departments of Excellence 2018-2022 Grant - Italian Ministry of Education, University and Research (MIUR) [L.232/2016]
- EU H2020 FET Open BOHEME [863179]
- NRF SANAP [UID118745]
- NYUAD Center for Global Sea Level Change project [G1204]
- ACE Foundation
- Australian Research Council [FT190100404, DP200102828] Funding Source: Australian Research Council
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This study presents unprecedented 3D imaging of waves and sea ice floes in the Antarctic marginal ice zone during a polar cyclone, revealing a complex wind-plus-swell sea state. The measurements of wave evolution in this region contribute to a better understanding of the role of the marginal ice zone in the climate system.
Unprecedented 3D imaging of waves and sea ice floes from a moving icebreaker in the Antarctic marginal ice zone during a polar cyclone reveals a complex wind-plus-swell sea state, where contrasting ice-driven attenuation and wind forcing coexist. 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.
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