• Title/Summary/Keyword: 연안환경 변화

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Production of the Thematic Standard Map for Coastal Regions Based on Remote Sensing Data (원격탐사기반 연안주제도 선진화 방안 연구)

  • Lee, Yoon-Kyung;Ryu, Joo-Hyung
    • Korean Journal of Remote Sensing
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    • v.33 no.6_2
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    • pp.1159-1169
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    • 2017
  • Since 1970's, various satellite remote sensing technology has been developed and accumulation of observational data has been carried out, and coastal environment monitoring research is being conducted through analysis of relationship between satellite remote sensing data and coastal sedimentary environment. However, generation of coastal thematic maps by various national agencies are not included in the production of coastal themes using satellite imagery. In this study, we want to deduct the current problems through survey of marine spatial information provided by the government. The purpose of this study is to investigation the direction of the development of large scale coastal thematic maps by analyzing coastal boundary map, coastal topographic map and coastal sedimentary facies map.

Monitoring of the Estuary Sand Bar Related with Tidal Inlet in Namdaecheon Stream using Landsat Imagery (Landsat 위성 영상을 활용한 강원도 양양군 남대천 연안 하구사주 갯터짐 환경 모니터링)

  • Jang, Jiwon;Eom, Jinah;Cheong, Daekyo;Lee, Changwook
    • Korean Journal of Remote Sensing
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    • v.33 no.5_1
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    • pp.481-493
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    • 2017
  • Estuary sand bar of Namdaecheon Stream is located in Yangyang-gun, Gangwon-do in Korea. This unique place is situated between end of Namdaecheon Stream and East Sea. It is an important environment area of the global ecosystem from the transition zone of land and marine environments by forming a variety of coastal circumstance. Some endemic species should be protected which is appearing in the Namdaecheon Stream because of preservation for future generations. Especially, the salmon return to this stream as adults in order to breed which is more than 70 % of the salmon in Korea peninsular. The monitoring of estuary sand bar is need to analyze ecological environment and sustainable development with time. First of all we represents a different shape of estuary sand bar of Namdaecheon Stream from 1984 to 2015 using Landsat satellite imagery series. Particularly movement of the "tidal inlet" is most important factor to investigate the condition of the change for estuary sand bar. The location of tidal inlet is compared with precipitation, height of tide and oceanic current data according to time variation.

한반도 주변 해역의 극치해면 및 해류 추정 방법

  • 최병호;고진석
    • Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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    • 1996.10a
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    • pp.15-18
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    • 1996
  • 우리나라 연안의 항만의 설계해면 및 해안구조물의 방어수위가 현재에 확률적으로 얼마나 안전한가의 여부와 현재 건설 중인 항만 개발 사업, 대규모 매립 사업, 기후 면화에 따른 해수위 상승 등에 변화되는 해양 환경에 따라 설계 수위와 연안방어체계를 어떻게 설정해야 할 것인가는 한국의 해안ㆍ해양 공학의 기본 과제임에도 불국하고 소홀하게 다루어지고 있는데 합리적인 접근방법에 의해 우리나라의 연안방어체계에 필수적인 극치자료를 제공하는 과업은 용이한 일은 아니다. (중략)

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영종도 연육교 건설에 따른 서해안 조석 체계의 변화

  • 문용주;박성진;김효섭
    • Proceedings of the Korean Society of Coastal and Ocean Engineers Conference
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    • 1996.10a
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    • pp.133-136
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    • 1996
  • 최근 자원의 효율적인 이용을 위한 연안 개발이 활발하게 진행되고 있는데, 이러한 연안 개발사업은 초기의 막대한 투자비와 유지 관리가 소요되기 때문 파랑, 흐름, 퇴적물 이동, 조석 등의 설계 환경 요인을 정확하게 예측하는 것이 필요하다. 해수 유동에 관한 수치모형 실험이라 함은 조석을 비롯한 해수의 움직임을 1차원, 2차원, 3차원적으로 재현하는 것을 말한다. 본 연구에서는 영종도 연육교 건설에 따른 서해안 일대의 조석 체계의 변화에 대해 현장 관측 및 2차원적 수치모형 실험을 통해 정확한 모양을 재현하고자 한다. (중략)

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한국 남해안 해황과 멸치어황 변화

  • 박종화;임양재;차형기
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2003.05a
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    • pp.259-261
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    • 2003
  • 멸치, Engraulis japonica는 우리나라 전 해역에 분포하고 있는 난류성 연안성 어류로서 남해안 기선권현망어업의 어획량이 가장 많다. 멸치는 남해안 외해역의 난수역에서 겨울을 보낸 후 봄철이 되면 남해안 연안역을 중심으로 동해안과 서해안을 따라 회유하는데, 주 분포 해역인 남해안에서 연중 산란과 성숙이 이루어짐으로서 어장이 형성되며 주 어기는 7-9월이다. 또 멸치는 해양환경 변화에 따라 어황 변동이 심한것으로 알려져 있어 어황예측에 어려움이 많다. (중략)

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A Study on the Introduction of Impact Assessment System for Coastal Erosion (연안침식영향평가 제도 도입방안 연구)

  • Bum Shik Shin;Hyun Hwa Shin
    • Journal of Korean Society of Coastal and Ocean Engineers
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    • v.36 no.2
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    • pp.87-93
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    • 2024
  • Recently, the impact of climate change with sea levels rise, abnormal high waves, and continuous construction of artificial structures such as ports and harbors, has led to an increasing trend in coastal erosion. In this study, the scope and method of Environmental Impact Assessment, Utilization of Sea Areas, Disaster Impact Assessment, and Risk Assessment of Coastal Disasters System, which are carried out during development projects and erosion reduction projects carried out on the coast, are analyzed to identify each problem. , we proposed a plan to introduce the Impact Assessment System for Coastal Erosion, which can minimize the impact of coastal erosion by deriving improvement measures.

A Study on the Development for the Coastal Fishing Boat attached Protected-Tunnel for Propeller (세미워터제트형 연안어선 개발에 관한 연구)

  • 고재용;심상목;박충환;서성부;배동균
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2003.05a
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    • pp.16-20
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    • 2003
  • Recently, The fast change of fishing boat fishery surrounding environment is connected by request of fan shape development that meet in restructuring of existing fishing boat fishery and new community, economical surrounding. In southern sea district along the coast work and district along the coast fishing bats that sail to exposed propeller fishing net, rope etc.. cold real condition that accident is increasing every year. This study is thing which analyze main performance of minuteness water jet type district along the coast fishing boat through model examination to propeller protection tunnel sticking district along the coast fishing boat that correct existing stem shape for marine accident prevention of district along the coast fishing boat in viewpoint such as ideal and examines.

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Comparison of water qualities and pollutants discharged to the East sea of Korea from Namdae and Yeongok stream in the Gangneung city (강릉 남대천과 연곡천의 수질과 동해 연안으로 방류되는 오염물질의 량 비교)

  • Yoon Yi Yong
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.6 no.1
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    • pp.68-77
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    • 2003
  • The Water quality of Namdae and Yeongok stream, located in the Kangnung City, and pollutants discharged to the east sea of Korea were investigated during april to November 2002 in order to understand the costal pollution phenomena. The water qualify grade of Namdae stream vary between II and V of water standard. On the other hand, that of Yeongok Stream is keeping I or II. The temporal and spacial variation of Namdae stream are higher than Yeongok stream. The water pollutants discharged to the east sea of Korea from Yeongok stream are lower 15.5 times for BOD, 2.6 times for COD, 1.7 times for T-N, 6.9 times for T-P than from Namdae stream, of which water flux are 1.4 times higher and contain much more of pollutants than Yeongok stream. It may have some effect on the costal ecosystem according to their pollutant flux.

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