Abstract
ABSTRACTFlood and ebb currents provide different contributions to the initiation and evolution of tidal channel networks, generating diverse network structures and channel cross‐sections. In order to separate the effects of these contributions, a physical model of a sloping tidal‐flat basin was set up in the laboratory. Depending on the degree of tidal asymmetry imposed offshore, either flood or ebb currents can be enhanced. The experimental results show that the ebb current has a higher capability to initiate and shape tidal networks than the flood current. Headward erosion is mainly induced by the ebb flow. The slightly inclined flat surface tends to reduce the energy of the flood current and to enhance the ebb current, thus prolonging the duration of morphodynamic activity as well as sediment motion. Overall, flood‐dominated tides favour the formation of small‐scale channel branches in the upper basin zone, while long lasting ebb‐dominated tides result in more complex, wider and deeper tidal networks. © 2019 John Wiley & Sons, Ltd.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
