Shoreline-change rates of the barrier islands in nakdong river estuary using aerial photography and spot-5 image SCOPUS KCI

Title
Shoreline-change rates of the barrier islands in nakdong river estuary using aerial photography and spot-5 image
Author(s)
Jeong, S.-H.; Khim, B.-K.; Kim, B.-O.; Lee, S.-R.
KIOST Author(s)
Jeong, Sang Hun(정상훈)
Publication Year
2013
Abstract
Shoreline data of the barrier islands in Nakdong River Estuary for the last three decades were assembled using six sets of aerial photographs and seven sets of satellite images. Canny Algorithm was applied to untreated data in order to obtain a wet-dry boundary as a proxy shoreline. Digital Shoreline Analysis System (DSAS 4.0) was used to estimate the rate of shoreline changes in terms of five statisticavariables; SCE (Shoreline Change Envelope), NSM (Net Shoreline Movement), EPR(End Point Rate), LRR (Linear Regression Rate), and LMS (Least Median of Squares). The shoreline in Jinwoodo varied differently from one place to another during the last three decades; the west tail has advanced (i.e., seaward or southward), the west part has regressed, the south part has advanced, and the east part has regressedAfter the 2000s, the rate of shoreline changes (-2.5~6.7 m/yr) increased and the east advanced. The shoreline in Shinjado shows a counterclockwise movement; the west part has advanced, but the east part has retreated. Since Shinjado was built in its present form, the west part became stable, but the east part has regressed faster. The rate of shoreline changes (-16.0~12.0 m/yr) in Shinjado is greater than that oJinwoodo. The shoreline in Doyodeung has advanced at a rate of 31.5 m/yr. Since Doyodeung was built in its present form, the south part has regressed at the rate of -18.2 m/yr, but the east and west parts have advanced at the rate of 13.5~14.3 m/yr. Based on Digital Shoreline Analysis, shoreline changes in the barrier islands in the Nakdong River Estuary have varied both temporally and spatially, although the exacreason for the shoreline changes requires more investigation.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3310
DOI
10.4217/OPR.2013.35.1.001
Bibliographic Citation
Ocean and Polar Research, v.35, no.1, pp.1 - 14, 2013
Subject
aerial photography; algorithm; barrier island; coastal morphology; least squares method; satellite imagery; shoreline change; SPOT; Nakdong Estuary; Pusan [South Korea]; South Korea
Keywords
Aerial photograph; Barrier islands; Nakdong river estuary; Satellite image; Shoreline change
Type
Article
Language
Korean
Document Type
Article
Related Researcher
Research Interests

Skill Assessment,Ocean Data Science,예측모델평가,해양자료분석

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