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Application of the Static Headland-Bay Beach Concept to a Sandy Beach: A New Elliptical Model

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Abstract

The headland-bay beach is one of the most common coastal types in the world. Its morphology reflects the changes that occurred during long-term evolution of the sandy coast. Several headland-bay beach models have been proposed to simulate the coastline’s configuration in equilibrium. In this paper, a new elliptical model is proposed, described, and applied. On the east coast of Laizhou Bay in Shandong Province from Longkou Port to Diaolongzui, four typical headland-bay beaches have developed, and four headland-bay beach models are used in this paper to simulate the morphology of these beaches to assess the applicability of each model. The simulation results of the elliptical model verify that it is applicable to the study area. In addition, the elliptical model is easy to use. Through simulation and field investigations, we concluded that most of the coastal segments in this area will remain in an erosion state, and the human activity has a significant impact on the shoreline’s evolution.

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Acknowledgements

This study was supported by the Marine Public Benefit Scientific Research Special Fund Project of the State Oceanic Administration (Nos. 200905008 and 201405037). The authors would like to thank Prof. Guangxue Li for his helpful comments.

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Correspondence to Lihua Cao.

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Li, B., Zhuang, Z., Cao, L. et al. Application of the Static Headland-Bay Beach Concept to a Sandy Beach: A New Elliptical Model. J. Ocean Univ. China 19, 81–89 (2020). https://doi.org/10.1007/s11802-020-3899-1

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Key words

  • static headland-bay beach concept
  • elliptical model
  • sandy beach
  • coastal erosion
  • east coast of Laizhou Bay