Abstract
This study develops an image-based monitoring techniques for observations of surf zone hydrodynamics especially focusing on evolution and propagations of infragravity waves along the coast. Laboratory experiment was first performed to investigate the relationship between image-captured shoreline fluctuations and recorded actual water surface fluctuations inside the surf zone. Frequency components of infragravity waves were extracted respectively from observed shoreline changes and recorded water surface fluctuations. Both components showed good agreement in terms of their alongshore distributions of phases and amplitudes. The same image-based technique was applied to the field, the Seisho coast when the typhoon 1112 approached the site and extracted infragravity wave components were found to be consistent with offshore wave data and showed characteristics of edge waves.
Sign-in/Register to access full text options 
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.
