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제주도의 고도를 고려한 확률강우량 산정 (Estimation of Probable Precipitation considering Altitude in the Jeju Islands)

  • 고재욱;양성기;정우열;양세창
    • 한국환경과학회지
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    • 제23권4호
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    • pp.595-603
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    • 2014
  • Jeju Island, a volcanic island, is the region that shows the biggest rainfall and has a big elevation-specific deviation of precipitation, but Jeju Island River Maintenance Plan doesn't reflect the characteristics of Jeju Island as it only calculates probable precipitation from four weather stations with elevation less than 100m. Therefore, this study uses AWS observational data in four Jeju Island weather stations and other regions to calculate location-specific probable precipitation, review the elevation-probable precipitation correlation in southern and northern regions, and create a probable precipitation map for all regions of Jeju Island, in order to produce better outcomes. This study is expected to be the most basic data to establish a safe Jeju island from flood disaster in preparation for the future climate changes and widely used for Jejudo Basin Dimension Planning, River Maintenance Plan, Pre-Disaster Impact Review, etc.

국내 섬관광 활성화 정책 도입 방향 -국외 섬관광 사례 비교를 중심으로- (Domestic island tourism activation policy direction : Focusing on comparison of overseas island tourism activation case)

  • 이정아
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2019년도 춘계학술대회
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    • pp.171-172
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    • 2019
  • 여가시간이 늘어나고 관광 트렌드가 변화함에 따라 섬관광에 대한 수요가 지속적으로 증가하고 있다. 이에 대응하여 정부도 섬관광 육성을 위한 다양한 정책 사업을 마련하고 있다. 본 연구는 국내 섬관광 현황 및 특징을 살펴보고 현재까지 추진되었던 섬관광 정책 추진 경과를 분석하는 한편, 우리나라와 사회적 제도적 환경이 유사한 일본의 섬관광 활성화 정책 사례와 비교를 통해 국내 섬관광 활성화 정책 방향을 제시하였다. 다수 부처에 분산되어 있는 섬관광 정책을 통합해 추진할 수 있는 조직적 기반을 마련하는 한편 섬 지역 주민이 주도해 추진할 수 있는 수준과 규모의 정책 개발이 이루어져야 할 것이다.

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AIS data 분석에 의한 제주도 주변 해역에서의 저속 어선의 출현빈도와 어장탐색 (A study on appearance frequencies and fishing ground exploration of low-run fishing obtained by analyzing AIS data of vessels in the sea around Jeju Island)

  • 김광일;안장영
    • 수산해양기술연구
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    • 제54권2호
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    • pp.157-163
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    • 2018
  • In the area around Jeju Island, the squid jigging fishery and the hair-tail angling are popular. Therefore, the study on the characteristics of the formation and shift of fishing grounds is very important. We have received and analyzed AIS data of all vessels around Jeju Island from October 16, 2016 to October 16, 2017, and extracted the positions of the fishing vessels with the same operational characteristics as the fishing vessels of their fisheries. The distribution chart of the frequency of fishing vessels appearing in each predefined fishing grid ($1NM{\times}1NM$) was analyzed. So we took a analogy with the monthly shift of fishing grounds. Many fishing vessels appeared in the seas around Jeju Island from November 2016 to January 2017, and the frequency of their appearance was maintained. In November, however, fishing vessels were mostly concentrated in coastal waters. Yet, the density gradually weakened as they moved into January. From February, the frequency itself began to decline, making it the worst in April. The high concentration of fishing vessels in the waters leading from Jeju Island's northwest coast to south coast in November is believed to be related to the yellowtail fishery that are formed annually in the coastal waters off the island of Marado. In May 2017, the appearance frequency of fishing vessels increased and began to show a concentration in coastal waters around Jeju Island. Fishing vessels began to flock in waters northwest of Jeju Island beginning in July and peaked in August, and by September, fishing vessels were moving south along the coast of Jeju Island, weakening the density and spreading out. Between July and August, fishing vessels were concentrated in waters surrounding Jeju Island, which is believed to be related to the operations of fishing vessels for the squid jigging fishery and the hair-tail angling.

IPA를 이용한 섬 관광정보 특성 평가 - 대학생 집단을 중심으로 (Evaluation of Island Tourism Information Characteristic Using the IPA)

  • 이동호;이석용
    • 한국산학기술학회논문지
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    • 제12권1호
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    • pp.248-254
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    • 2011
  • 섬 관광에 대한 수요가 증가함에 따라서 이러한 섬 관광에 영향을 미치는 요인들 중에 정보의 가치는 보다 중요하게 간주되고 있다. 본 연구에서는 섬 관광에 영향을 미치는 주요한 요인들을 기존의 연구를 토대로 도출하였으며, 이를 기반으로 관련된 섬 관광 웹사이트에서 제공되는 정보에 대한 사용자들의 인지를 분석하였다. 이러한 분석에는 관광정보 연구에서 활용되고 있는 IPA를 사용하였으며 영향요인 관련 정보의 중요도와 만족도에 대한 평가를 대학생 집단을 대상으로 실증적으로 살펴보았다. 연구를 통해서 분석된 결과에 따르면, 현재 표본 집단이 인지하고 있는 섬 관광과 관련되어 제공되는 주요한 영향요인정보의 중요도에 있어서는 일반적으로 중요하다고 언급되고 있는 자연경관이나 관광활동에 비해서 편의시설과 먹거리에 대한 중요도가 상대적으로 높은 것으로 나타났다. 현재 제공되는 정보의 질적 수준이나 콘텐츠적인 차원에서 본다면 자연경관이나 사회문화, 관광활동, 접근성과 관련된 정보들은 충분하다고 인지하고 있기에 이를 제외한 다른 차원에서 차별적인 정보를 제공하는 것이 요구된다고 볼 수 있다.

한국 완도에 서식하고 있는 등줄쥐(포유강: 설치목)의 분류학적 위치 (Taxonomic Stautus of Striped Field Mice(Mammalia: Rodenita) from Wando Island, Korea)

  • Hung Sun Koh;Bo Yeong Lee;Yong Kim Ki Kim;Sang Kyu Yoo;Byeong Kug Yang
    • Animal Systematics, Evolution and Diversity
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    • 제14권1호
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    • pp.51-57
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    • 1998
  • 완도산 등줄쥐의 분류학적 위치를 재검토하기 위해, 한국의 8개 지역에서 채집한 등줄쥐(Apodemus agrarius)의 31개 형태적 형질들을 다변량분석방법으로 분석하였다. 두 군으로 나누어 졌는데, 6개 지역(태백산, 월악산, 청주, 지리산, 군산, 진도)의 작은 형과 2개 지역(완도, 제주도)의 큰 형이었다. 6개 지역의 작은 형은 Thomas(1908)가 밝힌 대로 A. a. coreae이고, 제주도 지역의 큰 형은 Johnson과 Jones(1955)이 이 기재한 대로 A. a. chejuensis임이 확이되었다. 뿐만 아니라, 완도의 큰형은 Joh(1989)가 제안한대로 A. a. chejuensis임도 확인되었다.

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전압형 MMC-HVDC에 의한 제주계통의 풍력한계용량 증대 방안 (A Strategy of Increasing the Wind Power Penetration Limit with VSC Type MMC-HVDC in Jeju Power System)

  • 이승민;김일환;김호민;채상헌;왓나우덩
    • 전력전자학회논문지
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    • 제20권6호
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    • pp.550-557
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    • 2015
  • The Jeju Special Self-Governing Province is currently promoting the "Carbon-free Island by 2030" policy, which requires the use of renewable energy instead of fossil fuel so that the island will have no carbon gases generated by 2030. To implement this policy, the island plans to build a wind power plant capacity of 1.09 GW in 2020; this wind power plant is currently ongoing. However, when wind power output is greater than the power demand of the island, the stability of Jeju Island power system must be prepared for it because it can be a problem. Therefore, this study proposes a voltage source-type MMC-HVDC system linked to mainland Korea to expand the wind power penetration limits of Jeju Island under the stable operation of the Jeju Island power system. To verify the effectiveness of the proposed scheme, computer simulations using the PSCAD/EMTDC program are conducted, and the results are demonstrated. The scenarios of the computer simulation consist of two cases. First, the MMC-HVDC system is operated under variable wind power in the Jeju Island power system. Second, it is operated under the predicted Jeju Island power system in 2020.

Analyzing the correlation between urban forestry and surface temperature using Landsat TM data

  • Jo, Myung-Hee;Kim, Sung-Jae;Lee, Kwang-Jae
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.905-907
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    • 2003
  • In this study, the correlation between the heat island effect and the vegetation in Deagu Korea was performed through using Landsat TM data. the island effect, presents high temperature on air like island, is connected with correlation between the surface temperature and the temperature on the air. In this study, surface temperature was analyzed by detecting the change of urban forestry with remote sensing using the vegetation vitality statistics reference (ratio change of the Park greens in Daegu) the heat island effect not only brings the environment pollution but also brings serious problem such as the destruction of ecosystem to city as a whole. Jeff Luvall has studied to restrain the heat island effect by making urban forestry. Even though Daegu had been the serious high temperature urban area the current temperature of Daegu has been dropped. The correlation between the heat island effect and the vegetation index was analyzed by using satellite images.

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고속 인쇄회로기판에서 잡음원 위치에 따른 전도 잡음 특성 분석 및 부양된 접지 아일랜드를 이용한 전원부 잡음 감소 방법 (Transfer Characteristic for Various Noise Source Positions and Power Bus Noise Reduction Method using Elevated Ground Island in High Speed PCBs)

  • 이신영;권덕규;이해영
    • 한국전자파학회논문지
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    • 제14권3호
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    • pp.226-232
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    • 2003
  • 본 논문에서는 파워 아일랜드(power island)의 설계지침을 연구하였다. 일반적으로 파워 아일랜드는 각 파워버스(power bus)의 구조적 공진에 의해 잡음 전달이 증가하는 단점이 있다. 따라서 본 논문에서는 잡음원의 위치를 변화시킴으로서 공진을 억제하였으며 개선된 잡음 특성을 위해서 EGI(Elevated Ground Island)를 제안하였다. 해석결과, 잡음원의 위치에 따라 파워 버스의 공진을 최소로 감소시켰으며, EGI를 이용하여 공진에 의해 발생되는 잡음 전달을 11 $\Omega$까지 감소시켰다.

序毛島의 植生 (The Vegetation of Seogno Island)

  • Kil, Bong-Seop;Jeong-Un Kim
    • The Korean Journal of Ecology
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    • 제7권4호
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    • pp.208-232
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    • 1984
  • A survey was conducted on the vegetation of Seogmo island, which is small island (ca. 41 okm2) located about 1km west of Kanghwa island in the central Korea, from Aug. 1983 to May 1984. Based on the field data, actual vegetation map and potential natural vegetation map were made. The island is covered with broad-leaved trees dominated with Quercus variabilis. The dominance diversity curves obtaiend in different associations are grouped in two types, lognormal distribution forms at the undisturbed vegetation and geometric series at the disturbed or rocky sites. It seems that the curves show to us the nature of their ecocline by the hypothesis of some investigators, i.e. Random niche boundary hypothesis, niche preemption hypothesis, lognormal distribution and logarithmic series. Total numbers of vascular plant species of the island were recorded 108 families, 348 genera, 475 species, 73 variaties and 7 forma. And Pte.-Q Index, 0.93, and Fisher's Index, 589.8, were higher than those in neighboring islands.

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도서해양의 생태.문화자원의 활용과 지역 활성화 (Eco-Cultural Resources and Regional Activation of Maritime Area)

  • 홍선기
    • 농촌계획
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    • 제13권3호
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    • pp.61-72
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    • 2007
  • Natural resource of the island and coastal regions is one of the most important element of ecological network system in Korea. Currently, there is trend that natural and biological resources such as fishing and tidal wetland have been used to local economic activation in island and coastal regions. According to the 5-days work in a week, island and coastal regions become important amenity resource of citizen's recreation area. Korea is peninsula surrounded by maritime. Especially, South and West Sea surrounded by many islands and tidal flat wetlands are emerging marine ecosystem and seascape in the world. Natural resource is limited, so we have to sustain those resource to current tourism. In this study, I would like to suggest that importance of cultural resource as well as natural resource for 'eco-cultural tourism' in order to keep both biological diversity and cultural diversity as amenity resource for future island economic activation in Korea.