“…Internal waves (IWs) play a critical role in multiscale energy transfer and redistribution in the ocean's interior (Alford, 2003; Fringer & Street, 2003; Song & Chen, 2020; Y. Wang et al., 2018; Zhao et al., 2021). Mixing induced by IW breaking can alter water mass properties and ocean circulation variability (Masunaga et al., 2020; Nagai & Hibiya, 2015; St Laurent & Thurnherr, 2007; Xu et al., 2021). Compared with the well‐researched mid/low latitudes, the understanding of IW dynamics and energetics at high latitudes, especially Polar oceans, remains limited (Fer, Bosse, & Dugstad, 2020; Rippeth et al., 2017).…”