PSI to turbulence during internal wave beam refraction through the upper ocean pycnocline
A numerical study based on large eddy simulation (LES) is performed to investigate the nonlinear interaction of a semidiurnal (M2) internal wave beam with an upper ocean pycnocline. During refraction through the pycnocline, the wave beam undergoes parametric subharmonic instability (PSI) with formation of waves with (1/2)M2 frequency. The three-dimensional LES enables new results that quantify the route to turbulence through PSI. The subharmonic waves generated from PSI have an order of...[Show more]
|Collections||ANU Research Publications|
|Source:||Geophysical Research Letters|
|Gayen and Sarkar et al PSI to Turbulence 2014.pdf||1.67 MB||Adobe PDF|
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