Wavelet analysis of intermittent momentum flux in the inertial subrange

In order to study the structure of the momentum flux in the inertial subrange, wavelet transforms have been performed on wind velocity time series. A conditional sampling has been utilised for separating intermittent contributions. A quadrant analysis technique has been applied to the intermittent and nonintermittent momentum fluxes. Their dependence on length scales, quadrants and stability has been investigated.