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http://dx.doi.org/10.7780/kjrs.2022.38.6.1.25

Estimates on the Long-term Landform Changes Near Sinduri Beaches  

Yun, Konghyun (Institute of Engineering Research, Yonsei University)
Lee, Chang Kyung (Department of Civil Engineering, Kunsan National University)
Kim, Gyung Soo (Department of Civil Engineering, Kunsan National University)
Publication Information
Korean Journal of Remote Sensing / v.38, no.6_1, 2022 , pp. 1315-1328 More about this Journal
Abstract
Sinduri beach is a typical sedimentary landform that forms sand dunes due to the influence of the northwest wind in winter. Due to the its large scale and well-developed nature, it has been recognized for conservation value and is currently designated as Natural Monument No. 431, and continuous monitoring is required in terms of the preservation of topographical values. In this study, aerial images, drone images, and drone-based LiDAR data during 36 years were used for long-term topographical change observation of the Sinduri coastal sand dunes located in Taean-gun, Chungcheongnam-do. To implement this, the amount of change in elevation and volume for each period was calculated by applying the difference of Digital Elevation Model (DEM) based on raster calculation using the numerical elevation model generated from the raw data. Also, the amount of change in volume based on probability was calculated using the error propagation law for the intrinsic error of each data source. As a result, it can be seen that from 1986 to 2022, deposition of 35,119 m3 occurred in region of interest A (area: 17,960 m2) and 54,954 m3 of deposition occurred in region of interest B (area: 17,686 m2).
Keywords
Sinduri; Sand dune; Topographical changes; Deposition;
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