• Title/Summary/Keyword: 해안 도로

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A Study On The Three Dimensional Road Simulation Technique Based on GSIS (지형공간정보체계를 이용한 3차원 도로시뮬레이션에 관한 연구)

  • Quan, He-Chun;Lee, Byung-Gul
    • Journal of Korean Society for Geospatial Information Science
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    • v.12 no.2 s.29
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    • pp.11-15
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    • 2004
  • Based on Geo-Spatial Information System(GSIS), we tried to develop three dimensional road simulation system of coastal region considering landscape in Jeju island. The 1:5000 digital map, microstation CAD and Inroads road design programs were used to design coastal road. To estimate landscape effect of the three dimensional road visual simulation we implemented three types road simulations that are the trees planted, the flowers planted and the trees and flowers planted road, respectively. From the study, we found that the three dimensional virtual technique was very useful tool to design the road considering landscape effect in ocean view terrain and to estimate the reasonable road characteristics.

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Numerical Simulation of the Ship-Induced Waves inside Harbor (항내 항주파 계산을 위한 수치모의)

  • 이화영;권세영;오병철;전인식
    • Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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    • 2003.08a
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    • pp.270-275
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    • 2003
  • 일반적으로 완경사를 가지는 자연해빈은 항내 파랑 에너지를 감쇄시켜 항만의 정온도를 유지시키는 중요한 역할을 한다. 그러나 계속되는 항만개발로 자연해빈이 인공적인 호안이나 안벽 등으로 급속하게 대체되어 가고 있는 실정이다. (중략)

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Brags Reflection due to Multi-arrayed Semi-circular Submerged Breakwater (반원형 형상 다열 수중방파제에 의한Bragg반사)

  • 전찬후;황종길;조용식
    • Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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    • 2003.08a
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    • pp.249-253
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    • 2003
  • 심해로부터 해안으로 전파해오는 파랑은 해저지형 또는 구조물 등의 영향을 받아 반사, 쇄파 등과 같은 변형을 겪게 되며, 이와 같은 파랑은 연안침식 및 해안구조물의 안전과 설계에 영향을 미친다. 수중방파제(submerged breakwater)는 입사하는 파랑에너지를 대규모로 감소시켜 연안침식을 방지할 뿐만 아니라 방파제를 수중에 건설함으로써 해역환경의 개선을 가능하게 한다. 또한, Bragg반사를 이용하여 수중방파제를 건설할 경우, 연안의 불필요한 침식 및 퇴적현상을 최소화할 수 있을 뿐만 아니라 입사파에 의해 발생하는 해안구조물의 손상을 사전에 방지 할 수 있다. 아울러, 항만의 정온도를 향상시키는데 효과적으로 이용할 수 있다. (중략)

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Vegetation Characteristics of Four Major Islands in the Taeanhaean National Park (태안해안국립공원 주요 4개 섬의 식생특성)

  • Cho, Hyun-Seo;Choi, Song-Hyun;Cho, Woo
    • Korean Journal of Environment and Ecology
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    • v.24 no.2
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    • pp.93-100
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    • 2010
  • The Taeanhaean National Park is the only seashore national park in Korea. To investigate the vegetation structure and characteristics of representative four islands such as Oedo, Janggodo, Godaedo and Gauido in Taeanhaean National Park, sixteen plots(size is $100mm^2$) were set up, and four plots were set up in each island. In the result of vegetation structure analysis of each island, Oedo and Janggodo was dominated by Pinus thunbergii community, and Godaedo was dominated by P. thunbergii-P. densiflora community and Gauido was dominated by Carpinus turczaninovii-P. densiflora community. But according to the physical environment of each island, there was a subtle difference in species composition even though the same P. thunbergii or P. densiflora community. The analysis of ordination and similarity turned out that the degree of similarity was lowest(6.58%) between Oedo and Gauido. The analysis result of species diversity and number of individuals shows that Gauido had high species diversity (2.7183) than the other islands.

Economic Impacts of Sea-level Rise and Optimal Protection on Jeju Island (해수면 상승에 따른 경제적 피해 비용 및 최적 해안 방어 비율 추정 -제주도를 대상으로-)

  • Min, Dongki;Cho, Kwangwoo
    • Environmental and Resource Economics Review
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    • v.22 no.1
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    • pp.127-145
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    • 2013
  • This study estimates the economic impact of sea-level rise on Jeju island and suggests the optimal protection level based on the FUND model. There exist a number of studies that estimate the impacts of sea-level rise on global scale, but their results are of limited use for local scale such as Korea. Therefore, this study applies some specific indicators and data of Korea into to FUND model for deriving site specific estimates. The results show that 2.01%~2.25% of land could be inundated by sea-level rise until 2100. The value of affected land is about 6.4%~7.2% of total land value. The discrepancy between the figures indicates that the area affected by sea-level rise is much more valuable than the rest of Jeju island. The optimal protection level in Jeju city is higher than that in Seguipo city, even though the coastal length of Jeju city is longer than that of Seguipo. This is due to the fact that the economic value of Jeju city is much higher than that of Seoguipo city.

Relationship Between the Groundwater Resistivity and NaCl Equivalent Salinity in Western and Southern Coastal Areas, Korea (국내 서.남해 해안지역 지하수의 전기비저항과 등가 NaCl 염분도와의 관계)

  • Hwang, Se-Ho;Park, Kwon-Gyu;Shin, Je-Hyun;Lee, Sang-Kyu
    • Geophysics and Geophysical Exploration
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    • v.10 no.4
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    • pp.361-368
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    • 2007
  • In this paper, we suggested the relationship between resistivity of coastal groundwater and NaCl equivalent salinity for the quantitative interpretation the results of surface/borehole resistivity and electromagnetic data. 38 groundwater samples having electrical conductivity higher than about 1,000 ${\mu}S/cm$ were analyzed to derive the empirical relationship between groundwater resistivity and NaCl equivalent salinity. We used Schlumberger chart GEN-8 to convert ion concentration from hydrochemical analysis to the equivalent NaCl salinity, and the portable meter to measure the in situ electrical conductivity of groundwater samples. From the hydrochemical analysis, relationship between the groundwater resistivity $(R_w)$ and equivalent NaCl salinity (Eq_NaCl) is expressed as Eq_NaCl=$5935.3551{\times}R_w^{-1.0993}$, and relationship between the groundwater electrical conductivity (EC) and total dissolved solids (TDS) is expressed as TDS=0.721*EC. We believe these relationships are very useful to assess the seawater intrusion in western and southern coastal area.