“…The Southern Ocean plays an essential role in mitigating the rate of climate change through its globally disproportionate uptake of anthropogenic carbon dioxide (CO 2 ) and the associated excess planetary heat (Friedlingstein et al., 2022; Frölicher et al., 2015). However, the processes controlling heat and CO 2 uptake remain poorly understood as evidenced by the divergence in projected estimates by state‐of‐the‐art Earth System Models (ESMs) (Fox‐Kemper et al., 2021; Friedlingstein et al., 2022; Frölicher et al., 2015; Hauck et al., 2020; Meijers et al., 2023; Sallée et al., 2023). There is much debate regarding the spatio‐temporal scales of motion required to be explicitly resolved by ESMs, and whether resolving finer scales will result in model convergence (Fox‐Kemper et al., 2019; Hewitt et al., 2020).…”