Articles | Volume 17, issue 2
https://doi.org/10.5194/gmd-17-529-2024
https://doi.org/10.5194/gmd-17-529-2024
Development and technical paper
 | 
22 Jan 2024
Development and technical paper |  | 22 Jan 2024

Exploring the ocean mesoscale at reduced computational cost with FESOM 2.5: efficient modeling strategies applied to the Southern Ocean

Nathan Beech, Thomas Rackow, Tido Semmler, and Thomas Jung

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Cited articles

Auger, M., Prandi, P., and Sallée, J.-B.: Southern ocean sea level anomaly in the sea ice-covered sector from multimission satellite observations, Sci. Data, 9, 70, https://doi.org/10.1038/s41597-022-01166-z, 2022. 
Auger, M., Sallée, J.-B., Thompson, A. F., Pauthenet, E., and Prandi, P.: Southern Ocean Ice-Covered Eddy Properties From Satellite Altimetry, J. Geophys. Res.-Oceans, 128, e2022JC019363, https://doi.org/10.1029/2022JC019363, 2023. 
Ballarotta, M., Ubelmann, C., Pujol, M.-I., Taburet, G., Fournier, F., Legeais, J.-F., Faugère, Y., Delepoulle, A., Chelton, D., Dibarboure, G., and Picot, N.: On the resolutions of ocean altimetry maps, Ocean Sci., 15, 1091–1109, https://doi.org/10.5194/os-15-1091-2019, 2019. 
Beech, N.: n-beech/awicm-cmip6-eke: Inititial (v1.1), Zenodo [code], https://doi.org/10.5281/zenodo.7050573, 2022. 
Beech, N.: n-beech/Beech_et_al_cost_efficient_SO: Final, Zenodo [code], https://doi.org/10.5281/zenodo.10185411, 2023a. 
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Short summary
Cost-reducing modeling strategies are applied to high-resolution simulations of the Southern Ocean in a changing climate. They are evaluated with respect to observations and traditional, lower-resolution modeling methods. The simulations effectively reproduce small-scale ocean flows seen in satellite data and are largely consistent with traditional model simulations after 4 °C of warming. Small-scale flows are found to intensify near bathymetric features and to become more variable.
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