R. Soc. open sci. 7, 191505. (Published Online 15 January 2020) (doi:10.1098/rsos.191505)
This correction refers to errors in the labelling of the colour scale in figure 8. ‘Velocity u (m s−1)’ was erroneously changed to ‘Velocity μ (m s−1)’. This has now been corrected.
