Erratum for “Dimensionless Erosion Laws for Cohesive Sediment” by Joseph S. Walder

In the original paper, the symbol $\alpha$ was mistakenly used in several places where the symbol $\zeta$ was intended. In addition, one figure legend is in error. The required corrections are as follows:

On page 04015047-8, the caption of Fig. 4 should read as follows:

Fig. 4. Comparison of time-series data for sediment scour by an impinging jet with theoretical predictions of scour history; the assumption of a linear erosion law implicit in the Hanson and Cook (1997, 2004) model of the JET test was relaxed; dimensionless scour depth and dimensionless time are defined in the main text: (a) data from test 8/8.1/8.4/1 of Mazurek (2001); the material was a manufactured product used for pottery with size distribution 7% sand, 50% silt, 43% clay, and bulk dry specific gravity of 1.54; type curves calculated for $\zeta =1.62$ and grain specific gravity of 2.67; (b) data from test 8/14.5/9.0/4 of Mazurek (2001) using the same material as in (a); type curves calculated for $\zeta =1.07$.

Original Fig. 4(a) is correct as shown; however, the legend for the original Fig. 4(b) is incorrect. The dashed curve corresponds to parameter values $m=1$, $\alpha =0.00005$.

On page 04015047-11

Eq. (45) should read

Eq. (46) should read

Eq. (47) should read

Eq. (48) should read

Eq. (49) should read