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[1] In the paper “Nature of deformation of sandy bed forms” by Brandon McElroy and David Mohrig (Journal of Geophysical Research, 114, F00A04, doi:10.1029/2008JF001220, 2009), two equations were incorrectly reported. Equation 10 defines bed deformation, Π, as a rate of topographic change. The quantity D, the average vertical flux of over a bed, is therefore inconsistently defined in equation (18). Equation (18) should be

  • display math

Similarly, the estimation of Π (equation (19) within the Lagrangian reference frame of the mobile bed forms should be

  • display math

These changes do not affect equation (20), the calculation of flux associated with deformation.