RETRACTED: The influence of sand bed temperature on lift-off and falling parameters in windblown sand flux

Trajectories of saltating sand particles behind a porous fence

“…Among these techniques, PIV yields a full-field flow information and simultaneously measures particle velocities and concentration within the cross-section of the flow. This advantage can break through the limitation of single-point measurement of LDA technique, and make it possible for the test of two-phase aeolian sediment transport (e.g., Zhang et al, 2008;Yang et al, 2011;Bo et al, 2014). However, the result of PIV method is essentially an average of the interrogation area between two consecutive image frames, and can hardly track a whole saltation process of exactly the same particle.…”