Researchers identify mechanism responsible for temperature and salinity 'staircases' in ArcticOcean
The Arctic Ocean's main thermocline may be characterized by a series of fine-scale thermohaline staircase structures that are present in a wide range of regions, the formation mechanism of which remains unclear.
Recent analysis has led to the proposal of a theoretical model which suggested that these staircase structures form spontaneously in the ocean when the turbulent intensity determined by the buoyancy Reynolds numbercontrolled direct numerical simulations of turbulence in the Arctic Ocean thermocline to test the effectiveness of this theory. In these simulations, the staircases form naturally whenfalls in the range predicted by the instability criterion.
France Dernières Nouvelles, France Actualités
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