SWOT Reveals Fine‐Scale Balanced Motions Driving Near‐Surface Currents and Dispersion in the Antarctic Circumpolar Current

Tranchant, Yann‐Treden; Legrésy, B.; Foppert, Annie; Peña‐Molino, Beatriz; E. Phillips, Helen

doi:10.1029/2025ea004248

Public

SWOT Reveals Fine‐Scale Balanced Motions Driving Near‐Surface Currents and Dispersion in the Antarctic Circumpolar Current

Published in Earth and Space Science • Aug 1, 2025

Authors:

Yann‐Treden Tranchant

B. Legrésy

Annie Foppert

Abstract

Abstract The Antarctic Circumpolar Current (ACC) is a hotspot for the generation of small‐scale motions that have a key role in cross‐frontal exchanges. We present the first analysis of surface currents in the ACC derived from high‐resolution sea surface height (SSH) fields provided by the new Surfa...

Subject

Drifter

Ocean surface topography

Geostrophic current

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