Extended Data Fig. 2: River conditions and dune morphology statistics.
From: Dunes in the world’s big rivers are characterized by low-angle lee-side slopes and a complex shape
Statistics of flow discharge, Froude number (Fr, Eq. 1a), grain size, H/Y, dune height (H), dune wavelength (\(\it \lambda\)), H/\(\it \lambda\), superimposed dune height (Hs), Hs/\(\it {\lambda }_{{\rm{s}}}\), and Hs/Hmean. xEstimated mean discharge during survey. *Discharge range for multiple surveys. +N total is not same for superimposed dunes and large dunes. Mean values are found from first calculating the value of each individual dune then averaging.
