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논문 기본 정보
- 자료유형
- 학위논문
- 저자정보
- 지도교수
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- 발행연도
- 2015
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- 가톨릭관동대학교 논문은 저작권에 의해 보호받습니다.
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The research methods so far have been limited to techniques on time series analysis that uses low-resolution data such as videos received from satellites and pictures obtained from aerial surveys. Even in cases where direct investigations were conducted, accuracy was low because the there were only a few investigation points over wide areas of beaches
However, terrestrial LiDAR can obtain data on beach topography relief that is precise on the level of millimeters, something that is impossible with topography maps, aerial photographs, or high resolution satellite videos, in a short time over a wide area.
Therefore, this study used terrestrial LiDAR to observe the whole area of Gangmoon Beach on the east coast of Korea over 4 times and analyzed the beach topography, profile, and coastline. Their correlation with changes in coastal topography was examined based on the meteorological data recorded by Gangwon Regional Meteorological Adminstration.
As a result, the second, third, and fourth observations revealed, in comparison to the first observation, that sedimentation had occurred along the coastline, but that erosion had occurred in the southeastern region. It is thought that the extent of erosion was slightly wider in the third observation than in the second observation due to the influence of wave height.
As for the changes in beach profile, sedimentation occurred in Profile 1 and Profile 2, more so under fourth observation than first observation. In particular, the degree of sedimentation was larger in Profile 2. In comparison to the first observation, Profile 3 showed sedimentation uder second and fourth observations, but erosion under third observation.
The changes in the coastline mainly occurred in the middle and the southeastern region of the beaches, whereas the changes were not significant in the northwestern area of beach topography. In comparison to the first observation, the second, third, and fourth observatons revealed that the middle region of the beach had moved forword due to sedimentation, and that sedimentation and erosion occurred alternately in the southeastern region of the beach. Also, erosion occurred on the edge of the southeastern region of the beach under second, third, and fourth observations.
Efficient and accurate time-series observation of changes in beach topography, profile, and coastline was made possible by the use of terrestrial LiDAR. Therefore, it is thought that terrestrial LiDAR will be useful in the analysis of the degree, characteristics, and causes of the changes in beach topography.
However, terrestrial LiDAR can obtain data on beach topography relief that is precise on the level of millimeters, something that is impossible with topography maps, aerial photographs, or high resolution satellite videos, in a short time over a wide area.
Therefore, this study used terrestrial LiDAR to observe the whole area of Gangmoon Beach on the east coast of Korea over 4 times and analyzed the beach topography, profile, and coastline. Their correlation with changes in coastal topography was examined based on the meteorological data recorded by Gangwon Regional Meteorological Adminstration.
As a result, the second, third, and fourth observations revealed, in comparison to the first observation, that sedimentation had occurred along the coastline, but that erosion had occurred in the southeastern region. It is thought that the extent of erosion was slightly wider in the third observation than in the second observation due to the influence of wave height.
As for the changes in beach profile, sedimentation occurred in Profile 1 and Profile 2, more so under fourth observation than first observation. In particular, the degree of sedimentation was larger in Profile 2. In comparison to the first observation, Profile 3 showed sedimentation uder second and fourth observations, but erosion under third observation.
The changes in the coastline mainly occurred in the middle and the southeastern region of the beaches, whereas the changes were not significant in the northwestern area of beach topography. In comparison to the first observation, the second, third, and fourth observatons revealed that the middle region of the beach had moved forword due to sedimentation, and that sedimentation and erosion occurred alternately in the southeastern region of the beach. Also, erosion occurred on the edge of the southeastern region of the beach under second, third, and fourth observations.
Efficient and accurate time-series observation of changes in beach topography, profile, and coastline was made possible by the use of terrestrial LiDAR. Therefore, it is thought that terrestrial LiDAR will be useful in the analysis of the degree, characteristics, and causes of the changes in beach topography.
목차
- Ⅰ. 서 론 11.1. 연구배경 및 목적 11.2. 연구동향 21.3. 연구범위 및 방법 4Ⅱ. 지상 LiDAR 62.1. 지상 LiDAR의 개요 62.2. 지상 LiDAR의 원리 62.3. 지상 LiDAR의 제원 82.4. 지상 LiDAR 스캐닝 데이터의 정합 9Ⅲ. 실험 및 분석 133.1. 관측 방법 133.2. 분석 방법 153.3. 실제 적용 153.3.1 모형 실험 153.2.2 해빈 지형 실험 19(1) 해빈 지형 변화 분석 19(2) 해빈 지형 단면 분석 24(3) 해안선 분석 29Ⅳ. 결론 31참 고 문 헌 33ABSTRACT 36javascript:jsSubmit(''/jsp/submit/DcSuSdMetaUpdateServlet.jsp'',''subUpdate'',''U'')
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