Dear Colleagues,

Coastal transport and turbulent mixing play a critical role in modulating ecologically important biogeochemical processes (e.g., nutrient cycles, gas exchange and primary production), and understanding the hydrodynamic characteristics of energetic coastal systems is vital for both model development and coastal management. The purpose of this Special Issue is to publish novel research on these subjects, providing rapid turn-around times for the accelerated dissemination of research to a broad audience of scientists, teachers, and engineers. We encourage high-quality submissions that cover all topics in coastal transport and mixing in large lakes, oceans, and estuaries, including observational techniques, case studies, process descriptions, biophysical interactions, sediment transport, advances in modelling, and changes associated with climate warming, among others.

Dr. David James Cannon
Dr. Ayumi Fujisaki-Manome
Guest Editors

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• hydrodynamic modelling
• transport
• turbulent mixing
• coastal ocean
• estuary
• lake
• climate change
• biophysical interactions

Title: Dispersal in the Inner Shelf and Surf Zone with and Without Wave Breaking
Abstract: We performed offline, 3D Lagrangian particle tracking using the results from a high-resolution (20 m) hydrodynamic model where passive particles were released from different sites. In the simulation with wave breaking, it is observed that particles show random widespread distribution patterns traveling over 2 km away from the release site, and they tend to re-circulate in the surf zone reaching the shoreline because of the intensified littoral currents (Uchiyama et al., 2016). On the other hand, particles are transported offshore when there is no wave breaking. Moreover, they stayed more organized and especially in the offshore release case, no particle could be found near shore. Similar distribution patterns are observed in the vertical: particles clustered at certain depths when there is no wave breaking, whereas, in the simulation with wave breaking, they are scattered through all depths. Hence, our results suggest that wave-driven currents intensify cross-shore mixing and lateral dispersion and also enhance vertical mixing.