When surface water waves propagate over undulating seabed topography, the resulting interaction creates a near-bed velocity field which has important implications for sediment transport. Linear perturbation theory is used here to examine this interaction for the case of two-dimensional oscillatory uniplanar nonseparating flow, in which the surface wave crests are parallel to the crests of the bottom undulations....
Davies, A. G.. 1982. "On the interaction between surface waves and undulations on the seabed." Journal of Marine Research 40, (2). https://elischolar.library.yale.edu/journal_of_marine_research/1587