World Environmental and Water Resources Congress 2020
Simulation of Shoreline Changes on the Delaware Coast near the Indian River Inlet
Publication: World Environmental and Water Resources Congress 2020: Hydraulics, Waterways, and Water Distribution Systems Analysis
ABSTRACT
The purpose of this study is to model long-term shoreline changes on the Delaware coast near the Indian River Inlet (IRI) by using the U.S. Army Corps of Engineers shoreline evolution model, GenCade. By utilizing shoreline survey data and bathymetrical data of the inlet, this site-specific model was validated by hindcasting a 12-year-long historical shoreline evolution. The corresponding coastal processes simulated in the model include inlet sediment transport, offshore waves, longshore sediment transport, and coastal protection practices such as sand bypassing operation and beach nourishment. The evolution of shoals and bars around the inlet was simulated by using the inlet reservoir model (IRM). Model simulation skill was evaluated in terms of statistical errors by comparing simulated shoreline changes with observation data. The effect of sand bypassing operation is examined by comparing simulated shoreline changes with and without the bypassing.
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ACKNOWLEDGEMENTS
Funding supporting presentation of this study was provided by the U.S. Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory, the USACE Regional Sediment Management (RSM) program and the Coastal Inlets Research Program (CIRP). Permission was granted by Headquarters, U.S. Army Corps of Engineers, to publish this information. Special thanks go to Jesse Hayden (DNREC) and Eve Eisemann (CHL) for providing survey data of beach profiles and zero contour of LIDAR data. We thank Ashley E. Frey for providing an internal review of the manuscript.
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Published In
World Environmental and Water Resources Congress 2020: Hydraulics, Waterways, and Water Distribution Systems Analysis
Pages: 210 - 219
Editors: Sajjad Ahmad, Ph.D., and Regan Murray, Ph.D.
ISBN (Online): 978-0-7844-8297-1
Copyright
© 2020 American Society of Civil Engineers.
History
Published online: May 14, 2020
Published in print: May 14, 2020
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