A contrast in sea ice drift and deformation between winter and spring of 2019 in the Antarctic marginal ice zone

Womack, Ashleigh; Alberello, Alberto; de Vos, Marc; Toffoli, Alessandro; Verrinder, Robyn; Vichi, Marcello

doi:https://doi.org/10.5194/tc-18-205-2024

Articles | Volume 18, issue 1

https://doi.org/10.5194/tc-18-205-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-18-205-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 1

Research article

|

11 Jan 2024

Research article |

| 11 Jan 2024

A contrast in sea ice drift and deformation between winter and spring of 2019 in the Antarctic marginal ice zone

Ashleigh Womack, Alberto Alberello, Marc de Vos, Alessandro Toffoli, Robyn Verrinder, and Marcello Vichi

Supplement

https://doi.org/10.5194/tc-18-205-2024-supplement

Data sets

Polar Iridium Surface Velocity Profilers (p-iSVP), and standard Iridium Surface Velocity Profilers (iSVP) during SCALE 2019 Winter and Spring Cruises Marc de Vos et al. https://doi.org/10.5281/zenodo.7954779

An ice-tethered, non-floating Trident Sensors Helix Beacon during SCALE 2019 Spring Cruise Ashleigh Womack et al. https://doi.org/10.5281/zenodo.7954841

ERA5 hourly data on single levels from 1940 to present H. Hersbach et al. https://doi.org/10.24381/cds.adbb2d47

ERA5: Global Total Surface and 15m Current (COPERNICUS-GLOBCURRENT) from Altimetric Geostrophic Current and Modeled Ekman Current Reprocessing Copernicus Marine Service Information (CMEMS) https://doi.org/10.48670/moi-00050

Sea Ice Concentrations from Nimbus-7 SMMR and DMSP SSM/I-SSMIS Passive Microwave Data D. J. Cavalieri et al. https://doi.org/10.5067/8GQ8LZQVL0VL

ERA5: Fifth generation of ECMWF atmospheric reanalyses of the global climate Copernicus Climate Change Service (C3S) https://cds.climate.copernicus.eu/cdsapp#!/dataset/reanalysis-era5-single-levels?tab=overview

Model code and software

Antarctic buoys: a repository of diagnostic tools for analysing sea-ice drifters in the Antarctic marginal ice zone Ashleigh Womack and Marcello Vichi https://doi.org/10.25375/uct.24850146

Short summary

Synoptic events have a significant influence on the evolution of Antarctic sea ice. Our current understanding of the interactions between cyclones and sea ice remains limited. Using two ensembles of buoys, deployed in the north-eastern Weddell Sea region during winter and spring of 2019, we show how the evolution and spatial pattern of sea ice drift and deformation in the Antarctic marginal ice zone were affected by the balance between atmospheric and oceanic forcing and the local ice.