Errata for “Sedimentation from Buoyant Jets” by Gregory F. Lane-Serff and Terry J. Moran

Some numerical and other errors have been identified in the paper on sedimentation from buoyant jets. Fortunately, these errors do not have a substantial effect on the model predictions and comparisons with the experiments, but we here give corrected versions of Table 2 and Fig. 9 from that paper, together with an explanation of the errors.

The first error is in calculating the sediment load remaining in the plume when the plume reaches the free surface in the laboratory experiments ( $s_{\mathrm{rem}}$ in Table 2). The values given in the original paper are the values of the sediment load remaining in the plume after the plume has risen sufficiently far that there is no further deposition. However, in the laboratory experiments, the water depth was often relatively shallow, so that in some cases the plume had not reached this state. The values given for $s_{\mathrm{rem}}$ were therefore too small; and the values given for the point at which the plume reaches the surface, $x$ , were too large. Correct values are given in the revised version of the table.

The second error is in calculating the constant $A$ in Eq. 19 of the paper. Substituting the characteristic scales for the flow into Eq. (18) results in $A=\sqrt{2\alpha }\approx 0.44$ . Eq. (19) then becomesThis equation leads to an increase in the value of $r_s$ . Changing the values of $s_{\mathrm{rem}}$ and $r_s$ affects the values of $s_0$ in the final column of Table 2, calculated by using Eq. (21); and they are also corrected. The changes in $s_0$ and $x$ cause a change in the theoretical predictions plotted in Fig. 9, and so a revised version of this figure is also given. The effect on the Gaussian distribution of deposition in the gravity current is a decrease in the amplitude and an increase in the spread. The agreement between the theoretical values and the experimental data are slightly decreased for Experiment 6; relatively unchanged for Experiments 2, 3, 4 and 5; and increased for Experiment 1.