Two-Dimensional Depth-Averaged Beach Evolution Modeling: Case Study of the Kızılırmak River Mouth, Turkey
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 140, Issue 3
Abstract
This study presents an application of a two-dimensional beach evolution model to a shoreline change problem at the Kızılırmak River mouth, which has been facing severe coastal erosion problems for more than 20 years. The shoreline changes at the Kızılırmak River mouth have been thus far investigated by satellite images, physical model tests, and one-dimensional numerical models. The current study uses a two-dimensional depth-averaged numerical beach evolution model, developed based on existing methodologies. This model is mainly composed of four main submodels: a phase-averaged spectral wave transformation model, a two-dimensional depth-averaged numerical wave-induced circulation model, a sediment transport model, and a bottom evolution model. To validate and verify the numerical model, it is applied to several cases of laboratory experiments. Later, the model is applied to a shoreline change problem at the groin field to the east of the Kızılırmak River mouth at the Bafra alluvial plain. The results of the numerical model agree with the existing laboratory and field measurements.
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Acknowledgments
The authors thank the late Emeritus Prof. Dr. Yoshimi Goda, Prof. Dr. Leo van Rijn, Mark B. Gravens, and Atilla Bayram for assistance in compiling and interpreting the data sets of several field and laboratory experiments referred to in this study. The authors also thank the General Directorate of State Hydraulic Works and Bafra Plain Irrigation Project Directorate of DSİ for providing topographic measurements of the Kızılırmak River mouth and the General Directorate of Meteorological Affairs for providing wind data acquired from the Sinop Meteorological Station. The authors thank the editors and reviewers for valuable time and comments that significantly improved the manuscript. Finally, the authors acknowledge that this study was partially supported by Scientific and Technological Research Council of Turkey Research Grant No. 108M589, “Coastal Vulnerability Assessment to Climate Change Supported with a Numerical Sedimentation Model.”
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Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 140 • Issue 3 • May 2014
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© 2014 American Society of Civil Engineers.
History
Received: Jan 19, 2013
Accepted: Oct 10, 2013
Published online: Oct 12, 2013
Published in print: May 1, 2014
Discussion open until: Jul 28, 2014
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