The coherent vortex extraction method, a wavelet technique for extractingcoherent vortices out of turbulent flows, is applied to simulations ofresistive drift-wave turbulence in magnetized plasma (Hasegawa-Wakatanisystem). The aim is to retain only the essential degrees of freedom,responsible for the transport. It is shown that the radial density flux iscarried by these coherent modes. In the quasi-hydrodynamic regime, coherentvortices exhibit depletion of the polarization-drift nonlinearity and vorticitystrongly dominates strain, in contrast to the quasiadiabatic regime.
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