Topography and flow data concerning subaqueous dunes under combined flows

This file contains 2 types of data: 1- Topography raw data along the five transect along the flume and during a 3hr measurement (every 15min) 2- Flow raw data, acoustic data above the migrating dune in equilibrium (30 min measurement) Each file contain the backscattered signal used to define the dune bathymetry, water column, streamwise velocity vertical velocity