Piles of glass beads simulate underwater sediment in an experiment on dune migration and what can stop it. Credit: Karol Bacik, Nathalie Vriend/University of Cambridge
When pushed by the wind, sand dunes can travel across the ground — potentially leading to buried infrastructure. Similarly, ocean currents can shift an underwater dune onto a sea-floor pipeline or cable. Experiments have now shown that the outcome of such encounters depends on the obstacle’s size and shape1. doi: https://doi.org/10.1038/d41586-021-03023-2
https://www.nature.com/articles/d41586-021-03023-2
