Abstract

The thermohaline staircase structure, which is characterized by a series of remarkably homogeneous layers of temperature and salinity separated by sharp interfaces, widely exists in the Arctic Ocean's main thermocline. In our most recent work (Ma and Peltier (2022), JFM), we have proposed a stratified turbulence-based theory to describe the formation mechanism of the staircase structure. In this work, we test the effectiveness of such theory using a series of body-forced direct numerical simulations. We show that the staircase structure spontaneously forms in our simulations in a way that is consistent with our theoretical predictions.

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