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Time-Series Forecasting of Topographical Changes on Byunsan Beach in South Korea
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Time-Series Forecasting of Topographical Changes on Byunsan Beach in South Korea
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Journal Article
Time-Series Forecasting of Topographical Changes on Byunsan Beach in South Korea
2024
Overview
Lee, C.K. and Yun, K., 2023. Time-series forecasting of topographical changes on Byunsan Beach in South Korea. In: Lee, J.L.; Lee, H.; Min, B.I.; Chang, J.-I.; Cho, G.T.; Yoon, J.-S., and Lee, J. (eds.), Multidisciplinary Approaches to Coastal and Marine Management. Journal of Coastal Research, Special Issue No. 116, pp. 255-259. Charlotte (North Carolina), ISSN 0749-0208. Tides continuously affect the intertidal zone, erosion and deposition are caused by cataclysmic events such as hurricanes and typhoons in coastal areas, leading to a variety of issues. In particular, recent land reclamation, the creation of man-made islands, land expansion, and the construction of coastal power plants as a result of various forms of coastal development may distort the sedimentary environment to attain a new equilibrium state. As a result, there may be a shift in the external forcing on the coastal environment, which may restrict the supply of soil or alter its movement. The Saemangeum reclamation project is a large-scale project that involves building a 33.9 Km embankment from Buan to Bieung-do, Kunsan, and reclaiming the nearby land of 291 km2. This has been ongoing since the start of the seawall construction in the central coastal area of the west coast of the Korean Peninsula in 1991. This study observed and predicted the long-term topographical changes at Byeonsan Beach in Buan-gun, Jeollabuk-do, using aerial photography and drone-based Light Detection and Ranging (LiDAR) data collected over a period of nine years. This was accomplished using the Digital Elevation Models (DEMs) difference approach based on raster operations using the DEM derived from the source data to estimate the change in elevation and volume for each period. The error propagation equation was also used to calculate the probability-based volume change for the inherent error of each data source. As a result, the Region of Interest (ROI) experienced 18,847 m3 depositions between 2014 and 2022, with the area affected comprising 92.3% of the ROI.
Publisher
Coastal Education and Research Foundation
