Articles | Volume 21, issue 1
https://doi.org/10.5194/os-21-359-2025
https://doi.org/10.5194/os-21-359-2025
Research article
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07 Feb 2025
Research article | Highlight paper |  | 07 Feb 2025

Turbulent heat flux dynamics along the Dotson and Getz ice-shelf fronts (Amundsen Sea, Antarctica)

Blandine Jacob, Bastien Y. Queste, and Marcel D. du Plessis

Data sets

Data used in the manuscript entitled "Turbulent heat flux dynamics along the Dotson and Getz ice-shelf fronts (Amundsen Sea, Antarctica)" B. Queste et al. https://doi.org/10.5281/zenodo.12647855

ERA5 hourly data on single levels from 1940 to present Copernicus Climate Change Service, Climate Data Store https://doi.org/10.24381/cds.adbb2d47

Greenland and Antarctic ice sheet topography, cavity geometry, and global bathymetry (RTopo-2), links to NetCDF files J, Schaffer and R. Timmermann https://doi.org/10.1594/PANGAEA.856844

MEaSUREs BedMachine Antarctica. (NSIDC-0756, Version 3) M. Morlighem https://doi.org/10.5067/FPSU0V1MWUB6

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Co-editor-in-chief
This is the first in-situ validation of the reanalysis atmospheric flux and observations. Given the importance of the region in the context of global sea-level rise and recent advancements of numerical models at ice-ocean-atmosphere interface, the problems identified and the new parameterization in this paper make a difference.
Short summary
Few observations exist in the Amundsen Sea. Consequently, studies rely on reanalysis (e.g., ERA5) to investigate how the atmosphere affects ocean variability (e.g., sea-ice formation and melt). We use data collected along ice shelves to show that cold, dry air blowing from Antarctica triggers large ocean heat loss, which is underestimated by ERA5. We then use an ocean model to show that this bias has an important impact on the ocean, with implications for sea-ice forecasts.
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