ABSTRACT
Typical morphodynamic laboratory tests have been carried out at small scales and without sufficient coverage or resolution. These limitations, applying particularly to accretive tests, have obstructed reliable observations and restricted modelling capabilities. Here we present experiments with erosive/accretive waves acting on a large scale flume bed profile. The paper reports a set of high-quality hydro-morphodynamic data. The analysis is focused on net transport rates and how these patterns change between different accretive conditions. The measured velocity and acceleration skewness are presented and discussed, linking the net transport over the bar to the measured hydrodynamics and sediment concentrations. The resulting profile behaviour is discussed as a function of hydro-morphodynamic settings to facilitate comparisons with other datasets.
Acknowledgements
The authors want to acknowledge the discussions within the Hydralab team and the support of the CIEM staff and especially Q. Sospedra during the flume experiments. Finally, the authors want to thank the reviewers for their useful remarks that improved the manuscript.
ORCID
Agustin Sanchez-Arcilla http://orcid.org/0000-0002-3450-6697
Ivan Caceres http://orcid.org/0000-0002-7426-7029