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논문 기본 정보

자료유형
학술저널
저자정보
강지현 (국립생태원) 옥기영 (국립생태원) 박재금 ((주)지오시스템) 유성목 ((주)지오시스템)
저널정보
한국지형학회 한국지형학회지 한국지형학회지 제29권 제2호
발행연도
2022.6
수록면
65 - 77 (13page)

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초록· 키워드

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As the tidal flat of Yubudo island located at the Geumgang River estuary was registered as a UNESCO World Natural Heritage in 2021. It is essential to investigate spatiotemporal change in the tidal flat for sustainable conservation. This study aims to obtain high-resolution DEM for continuous monitoring of the sedimentary landform, and to analyze the morphological characteristics of intertidal flat around the island. Sedimentary landform was analyzed using the orthographic images and point cloud data which were obtained in the study. On the west side of Yubudo comprised of sandy material, large-scale ripple marks were confirmed. While, tidal channels were observed on the east side of the island with silt deposits containing sand. The location of spit and sandbars, which developed to the north of Yubudo, moved to the east compared to the past without artificial facilities. The largest change in area according to tidal elevation changes occurred when the M.S.L rose from the L.W.O.N.T., and the largest change in volume appeared when the sea level rose from L.W.O.S.T to L.W.O.M.T. It was confirmed that the spit and sandbar of the northern part of the island were also exposed on the H.W.O.S.T., and the sandy sediments are major habitats for sea bird. Changes in the sedimentation patterns and the tidal flats around Yubudo should be continuously monitored, and it is expected that the spatial data obtained in this study can be used as basic data for future studies.

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