• Spatial Information Research
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• v.7 no.1
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• pp.1-12
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• 1999

The DTM(Digital Terrain Model) in GIS(Geographical Information System) shows the elevation from interpolation using data points surveyed. In panoramic flat landform, pixel size, resolution of source data may not be the problem in using DTM However, in mountainous landform like Korea, appropriate resolution accuracy of source data are important factors to represent the topography concerned. In this study, the difference in contour interval of source data, the resolution after interpolation, and different data structures were compared to figure out the accuracy of slope calculation using DTM from the topographic maps of Togyusan National Park Two types of GIS softwares, Idrisi(grid) ver. 2.0 using the altitude matrices and ArcView(TIN) ver. 3.0a using TIN were used for this purpose. After the analysis the conclusions are as follows: 1) The coarser resolution, the more smoothing effect inrepresenting the topography. 2) The coarser resolution the more difference between the grid-based Idrisi and the TIN-based ArcView. 3) Based on the comparison analysis of error for 30 points from clustering, there is not much difference among 10, 20, 30 m resolution in TIM-based Airview ranging from 4.9 to 6.2n However, the coarser resolution the more error for elevation and slope in the grid-based Idrisi. ranging from 6.3 to 10.9m. 4) Both Idrisi and ArcView could net consider breaklines of lanform like hilltops, valley bottoms.

• Korean Journal of Environment and Ecology
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• v.22 no.2
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• pp.119-127
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• 2008

This research managed to establish the space information on incidence factors of landslide targeting Bukhansan National Park and aimed at suggesting a basic data for disaster prevention of a landslide for the period to come in Bukhansan National Park through drawing up the map indicating vulnerability to a landslide and ecological risks by the use of overlay analysis and adding-up estimation matrix analysis methods. This research selected slope angle, slope aspect, slope length, drainage, vegetation index(NDVI) and land use as an assessment factor of a landslide and constructed the spatial database at a level of '$30m\times30m$' resolution. The analysis result was that there existed high vulnerability to a landslide almost all over Uidong and Dobong valleys. As for ecological risks, Dobong valley, Yongueocheon valley, Jeongneung valley and Pyeongchang valley were analyzed to be higher, so it is judged that the impact on a landslide risk should be also considered in time of establishing a management plan for these districts for the time to come.

• Journal of Environmental Impact Assessment
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• v.13 no.5
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• pp.231-241
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• 2004

This study aims to detect the change of marine aquaculture farm within the boundary of Hallyeo Marine National Park. Comparison has been made on the Landsat images taken in 1984 and 2002 respectively by using feature extraction methods and other image analysis techniques. During the 18 year period between 1984 and 2002, total area of the aquaculture farms has been decreased in 63 percent. The reason for the change seems to be that aquaculture farms became concentrated only around the Geoje Islands due to the growth of the labor- and capital-intensive cage aquaculture for the expensive fish species instead of traditional oyster farming. Authors suggest the monitoring using remotely-sensed data as the best tool for the management of marine aquaculture farms on the basis of accuracy of analysis and relatively cheap cost. Management strategies of salmon farms in Tasmania, Australia has been analyzed to find the field techniques necessary for the management of aquaculture.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.222-224
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• 2012

친환경적이고 다양한 체험을 원하는 관광수요의 증가로 전라남도의 관광객은 꾸준히 증가 추세에 있어 지역 경제 활성화에 기여할 것으로 예상된다. 그러므로 남서해안 해양 관광 시대를 대비한 핵심전략 수립의 필요성이 대두되고 있다. 남해안의 관광 활성화를 위해 섬과 해안선, 다도해 해상국립공원을 대상으로한 크루즈 관광 상품을 개발하고 사업화 방안을 연구하는 것은 남해안 해양관광 할성화에 기여할 것으로 기대된다. 따라서 본 연구에선 해양관광시대의 도래에 대비한 관광전략의 수립으로 크루즈 관광의 루트를 선정하고 크루즈의 신규선 건조 시와 중고서 구입의 경우의 사업성타당성을 분석하여 남해안 크루즈 관광의 사업화 방안을 연구하고자 한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.8 no.7
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• pp.1570-1575
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• 2004

The information on maritime affairs in South Korea has been provided by Ministry of Maritime affairs and fisheries, National Fisheries Research and Development Institute, Korea Ocean Research and Development Institute, National Oceanographic Research Development Institute, and the information on marine products and maritime environment has been lively producing by laborarories, universities and other private-run institutes.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.274-275
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• 2022

자율운항선박 원격제어시스템의 실증을 위하여 원격제어시스템 실증방법을 고안하였으며, 이는 크게, 원격추종테스트, 원격제어테스트, 원격조종테스트 세 가지 방법으로 구분하였다. 본 연구에서는 원격제어시스템 실증을 위하여 실습선 한나라호와 육상제어센터 내 원격제어시스템을 통신네트워크(LTE, VSAT)을 통해 테스트하였다. 실습선을 활용하여 연안항해(부산-여수-부산) 중 안전수역(다도해 해상국립공원 부근)에서 10°/10° 지그재그 및 20/°20° 지그재그 테스트를 시행하였다. 실증 결과에 따라 원격제어시스템 내 핵심모듈의 부분적 문제점을 식별하여 이를 해결하기 위한 방안을 제시하였다.

• Korean Journal of Environment and Ecology
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• v.21 no.5
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• pp.449-455
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• 2007

To offer basic data for restoration technology development of the evergreen broad-leaved forest, this researcher did monitoring on the restoration project of the evergreen broad-leaved forest implemented in Dadohaesang(Marine) National Park for three years starting the year 2005, As a result of the monitoring job of tree height and survival rate of the evergreen broad-leaved forest on the 5 model afforestation-testing sites subsequent to the slanting surface, size of island, and whether the pastured livestock exist or not, it was found that the tree height & survival rate of the evergreen broad-leaved trees planted on the ridge parts of the southwest slanting surface were in better condition than those of the evergreen broad-leaved trees planted on the ridge parts of the northeast slanting surface. The survival rate of the evergreen broad-leaved tree planted on a big island was revealed to be higher than that of the evergreen broad-leaved tree planted on a small island. In addition, the survival rate of the evergreen broad-leaved tree planted in a place where livestock was pastured was revealed to be much lower than that of the evergreen broad-leaved tree planted in a place where there was no livestock. Conclusively, there showed a good tree hight and survival rate of the evergreen broad-leaved tree planted on the ridge parts of the southwest slanting surface, on a big island, and at the place where there was no pastured livestock.

• Korean Journal of Environment and Ecology
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• v.24 no.1
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• pp.69-77
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• 2010

The Jeongdori windbreak forests of Wando island, located between the sea and the land, are very important as ecological succession areas that protect cultivated lands and fishing villages. Among the Jeongdori windbreak forests, the rocky seashore areas are occupied by Sageretia theezans mantle community, and their inner sections by sub-tree layers such as Ligustrum japonicum and Ligustrum obtusifolium. More specifically, the inner sections of the rocky seashore areas were found to be the habitat of Ligustrum japonicum-Quercus variabilis community, Ligustrum jarponicum-Viburnum erosum community, Ligustrum japonicum-Cinnamomum japonicum community, Cinnamomum japonicum-Carpinus tschonoskii community, and Pinus densiflora-Viburnum erosum community. The average height of tree layers of the Jeongdori windbreak forests is 10.3m, and the average diameter at breath height are 30.3cm. Though the windbreak forests was artificially made, it is now virtually natural forest and deserves protection for ecological reasons. Designated as a scenic spot 3, it is always in the danger of being damaged by frequent tourist visits. So the Jeongdori windbreak forest needs to be continuous maintenance and management by the National Park Service. Considering of the precious cultural treasures of the famous pebble stones covering Gugyedeung and the naturality of the Jeongdori windbreak forests, the Jeongdori windbreak forests as a scenic spot have to designated as the national monument in future and will preserve by the Cultural Properties Administration.

• Journal of the Korean association of regional geographers
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• v.11 no.3
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• pp.410-423
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• 2005

The southern coastal area of Korean peninsula maintains unique natural views, social environment and tourism infrastructure. Even though the coastal area has world-class tourism resources and a great potential for development, it was an outsider from the tourism development in Korea. The coast development has recently reemerged because of increased tourism demand in the Northeast Asia, however, increased interest for the outstanding marine tourism resources and the marine culture, improvement of accessibility to the coast Considering these characteristics, the southern coastal area will be grown to a marine resort-belt, which will serve as a marine tourism hub in the Northeast. In the long run, it can be developed for leisure residential space with environment-friendly well-being fashion, new growing area that continuously drives the local development and area for a mutual development between Yeongnam and Honam Region. To accomplish this vision, several strategic matters should be resolved. Mall strategic issues are as follows: the loosening related rules and regulations that limit the development, legislation of a special law for tourism promotion, supporting for investment in public service and strategic investment, establishment of a marine tourism route connecting China-Korea-Japan, formulating new planning for Hallyo-Haesang Marine Park, designation of special marine tourism development zone, and invitation of the World Expo 2012.

• Korean Journal of Plant Taxonomy
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• v.36 no.3
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• pp.209-216
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• 2006

Arisaema thunbergii supsp. geomundoense, a new taxon in Arisaema sect. Tortuosa subsect. Flagellarisaema (Araceae), from Is1. Geomun-do, Dadohae National Park, Korea, is described. It is distinct from subsp. thunbergii in having bright purple enlargement at the base of spadix appendage, and in having wrinkled enlargement at the base of spadix appendage from subsp. urashima.