• Title/Summary/Keyword: Marine GIS

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GIS Application for the Analysis of Geomorphic Surfaces of Marine Terrace at Gampo, Gyeongju City (경주 감포지역 해안단구의 지형면분석을 위한 GIS의 적용)

  • Hwang, Sang-Ill;Jung, Hye-Kyung;Yoon, Soon-Ock
    • Journal of the Korean Association of Geographic Information Studies
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    • v.3 no.2
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    • pp.48-60
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    • 2000
  • This study is aimed to clarify the distribution chracteristics of marine terraces and extract the specific surface at Gampo-eup, Gyeongju city on the map of 1:5,000 using GIS. The effects and problems occurred on the process of using GIS were investigated for the research of marine terrace. The longitudinal profile analysis was carried out along the 12 sections on the geomorphic surfaces of the study area, and actually High higher surface(HH-surface) was found over 100m a.s.l., which has not been reported till now. And the occupancy rate could be calculated by substitution on the height between 4m and 87m a.s.l. for each mean slope degree $1-5^{\circ}$ obtained from the actual measuring along four sections. Consequently the lower-I surface was highly reliable to use as the key bed for studying marine terraces. The accurate and detail analysis about the marine terraces is able to be accomplished on the basis of meaningful actual measuring, though its general possible distribution area can be extracted from GIS with the less effort. Namely the quantified results obtained from GIS could offer the basis for the objective analysis of the geomorphic surfaces. And we can look over the landscape and investigate the surfaces with reliefs effectively in relation to the real geomorphology on the study area, where in situ approach is difficult. But the digital map with a large scale should be offered first of all in order to raise the accuracy of the analysis.

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A Study on Constructive Method and the Practical use of Marine GIS (해양 GIS 구축 및 활용 방안 연구)

  • Lee, Gi-Chul;Suh, Sang-Hyun;Cho, Seung-Rae;Han, Chang-Seuk;Park, Chang-Ho;Roh, Hong-Seung;Kim, Eun-Hyung;Kim, Jin-Hoo;Park, Jong-Hwa;Suh, Young-Sang
    • Journal of the Korean Association of Geographic Information Studies
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    • v.9 no.2
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    • pp.126-143
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    • 2006
  • The main objective of this study is to determine the methodology to increase the practical use of future Marine GIS based on the user's point of view of the analysis of maritime & fishery government agencies's roles. GIS related job duty of two Busan District offices of MOMAF(Ministry of Maritime and Fisheries), NFRDI(National Fisheries Research & Development Institute), Korea Institute of Maritime and Fisheries Technology and marine & fisheries local government offices of Busan Metropolitan city were analyzed for the establishment of MGIS, future extended service targeting user's increased practical utilization. Several suggestions in the area of production mechanism and technical policy for marine geographic information among the government agencies are developed to settle down successfully MGIS in Busan. Furthermore, 10 fields of Marine Geographic issues are rearranged for intending the desirable system and service.

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Study on Evaluation of Heat Demand and GIS Mapping in Costal Area (연안도시의 열 수요 추정 및 GIS Map 작성에 관한 연구)

  • Chung, Yong-Hyun
    • Journal of Fisheries and Marine Sciences Education
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    • v.25 no.1
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    • pp.192-197
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    • 2013
  • To overcome the mismatch of heat demand and heat supply is important as considering point on heat utilizing aspects in Urban area. At this point, It need to know the plan of heat networks on the heat balance aspects. The purpose of this study is to know the method of heat evaluation on heat network around costal area. It is need to building uses to calculate the amounts of heat demand. 25 different types of building uses were supplied, but it was reclassified 10 types and calculated the amounts of heat demand in the costal area. The results was described on the area with GIS mapping.

Development of 3-D GIS based Expression System for Utilization of Submarine Mineral Resource Exploration Data (해저자원 탐사자료의 효율적인 활용을 위한 3차원 GIS 기반의 표출 시스템 설계 및 구축)

  • Kim, Dong Il;Kim, Kye Hyun;Lee, Sung Joo;Park, Yong Hyun
    • Spatial Information Research
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    • v.21 no.3
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    • pp.21-30
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    • 2013
  • Recently, interest of submarine mineral resources has been increasing from the depletion of land resources around the world and many countries are involving in submarine mineral resource exploration work. South Korea is also in progress of mineral exploration and relevant study to ensure the submarine mineral resources from around the Korean Peninsula. As a result, the submarine mineral resource exploration data have been increasing annually. A database and 2D GIS-based system have been constructed for the management of the data. However, submarine mineral resource exploration data is explored and created on the sea-bed. Consequently, the visual confirmation of the water levels and marine landform is important for high dimension analysis. Therefore, the major aims of this study are to collect marine landform data from around the Korean Peninsula and to develop 3 dimension GIS based system that is linked to the submarine mineral resource exploration data. In detail, marine landform data were acquired for the Korean Peninsula and they were interpolated into raster file format. The raster file was then processed to be easily used and was entered into an Oracle database. Based on this database, 3D expression and overlap function between marine landform data and submarine mineral resource exploration data were designed using ArcScene offered by the ESRI. After design, 3D GIS based expression system was developed. Confirmations of locations and changes in the submarine mineral resource exploration data based on 3D GIS are enabled to support the efficient application of the proposed system. It is expected that this system will be highly useful for estimating the reserves of mineral resources and for providing valuable information for economic evaluations.

Database of Navigational Environment Parameters (Water Depth, Sediment Type and Marine Managed Areas) to Support Ships in an Emergency

  • Kim, Tae-Ho;Yang, Chan-Su
    • Journal of Navigation and Port Research
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    • v.43 no.5
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    • pp.302-309
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    • 2019
  • This study introduces the navigational environment database(DB) compiling water depth, sediment type and marine managed areas (MMAs) in coastal waters of South Korea. The water depth and sediment data were constructed by combining their sparse points of electronic navigation chart and survey data with high spatial resolution using the inverse distance weighting and natural neighbor interpolation method included in ArcGIS. The MMAs were integrated based on all shapefiles provided by several government agencies using ArcGIS because the areas should be used in an emergency case of ship. To test the validity of the constructed DB, we conducted a test application for grounding and anchoring zones using a ship accident case. The result revealed each area of possible grounding candidates and anchorages is calculated and displayed properly, excluding obstacle places.

A Study on the Establishment of a GIS Thematic Mapping Procedure for Oil Spill Monitoring Data (유류오염 모니터링 자료의 GIS 주제도 제작 절차 수립 연구)

  • Kim, Tae-Hoon;Choi, Hyun-Woo
    • Journal of the Korean Association of Geographic Information Studies
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    • v.15 no.1
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    • pp.1-15
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    • 2012
  • Marine scientific monitoring, including monitoring of oil pollution, marine ecosystems, and the marine environment in general, has been being carried out continuously in order to assess the impact of oil pollution since the Hebei Spirit oil spill in December 2007. GIS thematic maps containing visual and summarized information are very useful for conducting exploratory analyses on the spatio-temporal variability of the marine environment and marine ecosystems due to oil pollution. Defining map types and building a legend in accordance with data characteristics are essential elements for mapping. In the present study, map types were defined according to the data attributes and GIS data types for each data item and classification of data intervals for the legend was defined by using two data distribution types through a histogram analysis. The data interval method was defined as follows: If the histogram of data has a uniform distribution, an equal interval method is applied; in the case of a normal distribution, a standard deviation method is applied. In addition, thematic map templates were made for each map type through the definition of marginal elements. Through the establishment of systematic mapping methods and procedures in this study, it was possible to effectively make standardized thematic maps for various kinds of marine scientific data.

Data issue and Improvement Direction for Marine Spatial Planning (해양공간계획 지원을 위한 정보 현안 및 개선 방향 연구)

  • CHANG, Min-Chol;PARK, Byung-Moon;CHOI, Yun-Soo;CHOI, Hee-Jung;KIM, Tae-Hoon;LEE, Bang-Hee
    • Journal of the Korean Association of Geographic Information Studies
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    • v.21 no.4
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    • pp.175-190
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    • 2018
  • Recently, policy of the marine advanced countries were switched from the preemption using ocean to post-project development. In this study, we suggest improvement and the pending issues when are deducted to the database of the marine spatial information is constructed over the GIS system for the Korean Marine Spatial Planning (KMSP). More than 250 spatial information in the seas of Korea were processed in order of data collection, GIS transformation, data analysis and processing, data grouping, and space mapping. It's process had some problem occurred to error of coordinate system, digitizing process for lack of the spatial information, performed by overlapping for the original marine spatial information, and so on. Moreover, solution is needed to data processing methods excluding personal information which is necessary when produce the spatial data for analysis of the used marine status and minimized method for different between the spatial information based GIS system and the based real information. Therefore, collection and securing system of lacking marine spatial information is enhanced for marine spatial planning. it is necessary to link and expand marine fisheries survey system. It is needed to the marine spatial planning. The marine spatial planning is required to the evaluation index of marine spatial and detailed marine spatial map. In addition, Marine spatial planning is needed to standard guideline and system of quality management. This standard guideline generate to phase for production, processing, analysis, and utilization. Also, the quality management system improve for the information quality of marine spatial information. Finally, we suggest necessity need for the depths study which is considered as opening extension of the marine spatial information and deduction on application model.

The practical use of GIS in calculation of pollutant loads for a coastal management (연안역 통합관리에서의 GIS 활용 방안 -오염부하량 산출을 중심으로-)

  • Choi, Jung-Min;Kwon, Suk-Jae
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.11 no.1 s.22
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    • pp.71-76
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    • 2005
  • The purpose if the study is to apply GIS technique to sample area, Choensoo-Bay basin for an efficient and practical coastal zone management if pollution control. The basins, Unit if pollution control, are selected with qualitative analysis using DEM after considered river length, degree and area of basin through channel network analysis. Choensoo-Bay basin is divided with 6 zones to 33 subordinate zones. It is found to be a big difference of pollutant loads in each zone. The pollutant loads use to review for efficient zoning. And also the result apply to measurement of water quality and building for environmental infrastructure.

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A Study on the AVLS using VHF base on GPS (GPS기반 VHF를 이용한 AVLS에 대한 연구)

  • Yun, Jae-Jun;Choi, Jo-Cheon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • v.9 no.1
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    • pp.256-260
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    • 2005
  • For the structure of AVLS is required to the GPS-MDT for realtime acquisition the position reporting of vehicle and traffic management S/W. It is necessary that the MODEM using VHF transceiver base on GPS and monitoring program for display base on GIS the traffic status by vehicles position report in management system. The other wise, vehicles among management system that is required the automatic communications protocol for GPS information and mobile's ID. In this paper have studied the VHF modem for transmission the voice and data at same time and S/W for management system using GIS-tool.

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