항공사진과 SPOT-5 위성영상을 이용한 낙동강 하구역 울타리섬들의 해안선 변화율 = Shoreline-change Rates of the Barrier Islands in Nakdong River Estuary Using Aerial Photography and SPOT-5 Image

다국어 초록 (Multilingual 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 statistical variables; 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 regressed. After 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 of Jinwoodo. 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 exact reason for the shoreline changes requires more investigation.

참고문헌 (Reference)

1 유창일, "해도분석을 통한 낙동강 하구 사주 면적의 시·공간 변화" 한국해양공학회 20 (20): 54-60, 2006

2 오치영, "위성영상과 GIS를 이용한 낙동강하구 지형변화탐지" 한국지형공간정보학회 18 (18): 21-29, 2010

3 부산광역시, "낙동강하구 생태계모니터링 (2007~2008)" 부산발전연구원 2008

4 김백운, "낙동강 하구역 울타리 섬의 해안선 변화율" 한국해안,해양공학회 19 (19): 361-374, 2007

5 오건환, "낙동강 하구둑 건설로 인한 삼각주 말단의 지형변화" 7 : 38-47, 1988

6 김성환, "낙동강 하구둑 건설과 삼각주연안 사주섬 지형변화" 서울대학교 대학원 2005

7 김백운, "낙동강 하구 해안선변화 연구를 위한 모자이크 항공사진의 구축" 한국해양과학기술원 27 (27): 497-507, 2005

8 오건환, "낙동강 삼각주 말단의 지형변화" 13 (13): 67-78, 1999

9 Dolan R, "Temporal analysis of shoreline recession and accretion" 7 (7): 723-744, 1991

10 Bailey B, "Techniques for monitoring coastal change: A review and case study" 32 (32): 85-95, 1996

11 Moore LJ, "Shoreline mapping techniques" 16 (16): 111-124, 2000

12 Morton RA, "National assessment of shoreline change: Part 1: Historical shoreline changes and associated coastal land loss along the U.S. Gulf of Mexico" U.S, Geological Survey 44-, 2004

13 Rousseeuw PJ, "Least median of squares regression" 79 (79): 871-890, 1984

14 Corwell M, "Historical shoreline change: Error analysis and mapping accuracy" 7 (7): 839-852, 1991

15 Thieler ER, "Digital Shoreline Analysis System (DSAS) version 4.0-An ArcGIS extension for calculating shoreline change" U.S. Geological Survey 2009

16 Chen LC, "Detection of shoreline changes for tideland areas using multi-temporal satellite images" 19 (19): 3383-3397, 1998

17 Carter RWG, "Coastal environments" Academic Press, London 1988

18 Canny J, "A Computational approach to edge detection" 8 (8): 679-698, 1986