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Shoreline Change Detection and Forecast along the Yancheng Coast Using a Digital Shoreline Analysis System

  • Degradation and Ecological Restoration of Estuarine Wetlands in China
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Abstract

Shorelines are the dynamic interfaces of both terrestrial and marine environments and are sensitive to climate and anthropogenic influences. The change in the shoreline plays a critical role in intertidal mudflat resources and coastal ecological environment. This paper extracts shoreline along the coast of Yancheng from 1983 to 2020 using a new procedure. The proposed procedure is based on a combination of object-oriented technology and thresholding the wetness components of the tasseled cap transformation (TCT). Then, we studied the temporal and spatial variation in the shoreline and predicted shore movement using the Digital Shoreline Analysis System (DSAS). The results indicated that we yielded a better extraction of shoreline results using the new approach. The shoreline change analysis for the coast of Yancheng over 40 years indicated that 89% was accretion, 3% was under stable coast and erosion was 8%. The coast showed a significant trend of expanding to the sea. Finally, we forecasted shoreline position for the years 2019 and 2020 based on the historical shoreline position data from 1983 to 2009 and 1983–2010 by using the Kalman filter. The results of this study may help coastal researchers and decision makers to guide the use, management, and planning of coastal zones in further study.

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Acknowledgments

The study of this paper was supported by National Natural Science Foundation of China (project no. 41871097, 41471078), Jiangsu Agricultural Science and Technology Innovation Fund (project no. CX (18) 2026), Jiangsu 333 Talent Program, Research Foundation for Advanced Talents of Nanjing Forestry University, and the Priority Academic Program Development of Jiangsu Higher Education Institution (PAPD).

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Funding

The study of this paper was supported by National Natural Science Foundation of China (project no. 41871097, 41471078), Jiangsu Agricultural Science and Technology Innovation Fund (project no. CX (18) 2026), Jiangsu 333 Talent Program, Research Foundation for Advanced Talents of Nanjing Forestry University.

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DY and ZL contributed to come up with the initial ideas and wrote the main manuscript text; XY reviewed and edited the manuscript; JL and LQ prepared figures and tables and related analysis; DY discussed the results and wrote the paper; All authors made revisions and improvements to the final version. The author(s) read and approved the final manuscript.

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Correspondence to Zhaoqing Luan.

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Yan, D., Yao, X., Li, J. et al. Shoreline Change Detection and Forecast along the Yancheng Coast Using a Digital Shoreline Analysis System. Wetlands 41, 47 (2021). https://doi.org/10.1007/s13157-021-01444-3

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  • DOI: https://doi.org/10.1007/s13157-021-01444-3

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