This figure gives an example of the error landscape: (a) shows the landscape before smoothing and (b) shows it after smoothing and with water. The end position is plotted on the x axis, the distance is plotted on the y axis. In (a), the raised ground water is shown and the separating position has been smoothed. The point between the lines marked in red is a separating position (see Definition 3).
Holtgrewe et al. BMC Bioinformatics 2011 12:210 doi:10.1186/1471-2105-12-210