velocities: Time sequence of 2D velocity fields (cm/s) MU: Ensemble average of horizontal velocity distribution (cm/s) MV: Ensemble average of vertical velocity distribution (cm/s) SU: Standard deviation of horizontal velocities (cm/s) SW: Standard deviation of vertical velocities (cm/s) eps: 2D distribution of dissipation rate (m^2/s^3) x: horizontal coordinate (cm) z: vertical coordinate (cm)