Article Dans Une Revue Geophysical Research Letters Année : 2025

Mean Kinetic Energy and Its Projected Changes Dominate Over Eddy Kinetic Energy in the Arctic Ocean

Résumé

As sea ice retreats in a warming climate, the Arctic Ocean is becoming more energetic; yet little is known about this additional energy's distribution in the water column. We use a high‐resolution (3–4 km) pan‐Arctic ocean‐sea ice model forced by present day and future scenarios to examine changes in mean kinetic energy (MKE) and eddy kinetic energy (EKE). Our study suggests that both the mean and eddy fields are becoming more energetic under anthropogenic forcing but changes in the mean circulation dominate the increase, concurrent with a spin‐up of the large‐scale circulation, concentrated in the top 200 m and along boundaries. The increase in EKE is strongest in the upper 50 m and is linked to enhanced baroclinic instability within the mean boundary currents. A better grasp of the distribution of this energy surplus helps to understand projected changes to stratification, mixing, and circulation in a future Arctic Ocean.

DOI

Cite 10.5281/zenodo.5789520 Ouvrage Ctalandi. (2021). ctalandi/NUM-EXPS-DOI: CREG12.L75-REF08 (Version v1.1). Zenodo. https://doi.org/10.5281/ZENODO.5789520

DOI

Cite 10.5281/zenodo.15657723 Ouvrage Talandier, C., & Lique, C. (2025). CREG12.L75-FUT08 (Version v1.0). Zenodo. https://doi.org/10.5281/ZENODO.15657723

DOI

Cite 10.5281/zenodo.17566491 Ouvrage jk-rieck. (2025). jk-rieck/future_arctic: v1.3 (Version v1.3). Zenodo. https://doi.org/10.5281/ZENODO.17566491

DOI

Cite 10.5194/tc-11-1767-2017 Autre Armitage, T. W. K., Bacon, S., Ridout, A. L., Petty, A. A., Wolbach, S., & Tsamados, M. (2017). Arctic Ocean surface geostrophic circulation 2003–2014. The Cryosphere, 11(4), 1767–1780. https://doi.org/10.5194/tc-11-1767-2017

DOI

Cite 10.5670/oceanog.2022.122 Autre von Appen, W.-J., Baumann, T., Janout, M., Koldunov, N., Lenn, Y.-D., Pickart, R., Scott, R., & Wang, Q. (2022). Eddies and the Distribution of Eddy Kinetic Energy in the Arctic Ocean. Oceanography. https://doi.org/10.5670/oceanog.2022.122

DOI

Cite 10.1594/PANGAEA.941165 Jeu de données von Appen, W.-J., Baumann, T., Janout, M. A., Koldunov, N., Lenn, Y.-D., Pickart, R., Scott, R., & Wang, Q. (2022). Eddy kinetic energy in the Arctic Ocean from moored velocity observations [Data set]. PANGAEA. https://doi.org/10.1594/PANGAEA.941165

Dates et versions

hal-05409895 , version 1 (10-12-2025)

Identifiants

Citer

J. K. Rieck, J. Martinez Moreno, Camille Lique, Carolina Dufour, Claude Talandier. Mean Kinetic Energy and Its Projected Changes Dominate Over Eddy Kinetic Energy in the Arctic Ocean. Geophysical Research Letters, 2025, 52 (22), e2025GL117957 (10p.). ⟨10.1029/2025GL117957⟩. ⟨hal-05409895⟩
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