• Title/Summary/Keyword: 지리정보체계(GIS)

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Exploitation of GIS(Geographic Information Systems) Market and Participation of Geographers in GIS Industry (GIS 시장개척과 지리학의 가능성)

  • Sung Hyo Hyun
    • Journal of the Korean Geographical Society
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    • v.39 no.4
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    • pp.665-682
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    • 2004
  • GIS is considered as a big industry or business in the field of applied sciences. Recently GIS market in Korea is growing rapidly for LBS, Telematics, Web-geographic information services. This paper attempts to focus on the interrelationship between GIS and geography, and the question of how geography emerged out of intellectual trends within GIS to examine possible contribution of geographers in GIS fields. The application of GIS appears to be largely technical in nature. It is important for the GIS operator and the consumer of GIS products to be aware of the geographical concepts that underpin GIS operations. Also it is seen that many departments of geography in Korea have attempted to actively adopt GIS into their education program, with aim to improve the status. GIS has promoted a shift towards applied geography from academic geography. GIS researchers and educators in geography are concerned not with technology, but with the basic concepts and the issues relating to its use, in comparison with other academic fields. It is the responsibility of geography community to make sure that our students receive a geographical education that includes problem-solving, critical thinking and technical capabilities. It is concluded that promoting GIS technology in geography curriculum is essential for the further expansion of geography within GIS and also for the survival of geography.

A Study of World Geodetic System Transformation Method for Environment Geospatial Information System in Incheon (인천지역의 환경지리정보의 세계측지계 변환방안 연구)

  • Choi, Byoung-Gil;Kim, Sung-Soo;Na, Young-Woo
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2008.06a
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    • pp.346-350
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    • 2008
  • 본 연구의 목적은 국가기준점체계의 세계측지계 전환에 따른 인천 연안지역의 환경지리정보 변환 방안을 연구하는데 있다. 이를 위해 세계측지계 변환 방안과 관련된 각종 자료를 수집 분석하여 환경지리정보의 세계측지계 변환을 위한 방안을 연구하였다. 환경지리정보들을 다양한 구축방법에 따라 다양한 형태로 제공되고 있어 일괄적은 변환에는 어려움이 있을 것으로 판단된다. 환경지리정보들을 변환하기 위해서는 우선 국토지리정보원의 수치지도의 세계측지계 변환 지침을 기준으로 원시자료부터 변환을 수행하여 환경지리정보를 다시 구축하는 방안과 기존에 구축된 환경지리정보를 변환하는 방안이 있음을 알 수 있었다. 새로운 측지좌표계 도입에 따른 환경지리정보의 세계측지계 변환 방안을 제시하고, 환경지리정보에 대하여 국가기준계의 세계측지계 전환에 능동적으로 대응하고 세계측지계 도입에 따라 예상되는 초기 혼란을 최소화 하고 향후 구축될 환경지리정보들의 정확도 향상의 기반을 조성 할 수 있을 것으로 기대된다.

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Determination of Grid Size to Extract Hydrologic -Topographical Parameters (수문지형인자 추출에 따른 격자크기의 결정)

  • Jeong, In-Ju;Seo, Kyu-Woo;Kim, Ga-Ya
    • Journal of the Korean Association of Geographic Information Studies
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    • v.8 no.3
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    • pp.23-33
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    • 2005
  • Hydrologic-topographical parameters were extracted using GIS. The use of GIS is more effective and exact than the execution by person. And the purpose of this paper is to extract more efficient size of grid for DEM analysis by applying GIS technology. As a result, when the grid size is less than $100m{\times}100m$ the trend of extracted parameters is similar but when the grid size is over $100m{\times}100m$ the trend of extraction parameters is dispersive. Therefore, it is appropriate to extract hydrologic-topographical parameters the grid size of $100m{\times}100m$ in DEM analysis.

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Modeling Large Scale of Urban Nonpoint Source Pollution using a Geographic Information System (지리정보체계를 이용한 도시 비점원오염의 대축척 모형화)

  • Kim, Kye-Hyun
    • Journal of Korean Society for Geospatial Information Science
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    • v.1 no.1 s.1
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    • pp.171-180
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    • 1993
  • Concern about nonpoint source pollution associated with urban storm water has led to the development of new tools for better water quality planning. This paper presents an application of a geographic information system (GIS) for urban water quality study. The GIS was used to manage land use data for nonpoint source pollution modeling and to aggregate pollutant loadings within various types of geographic units. An empirical water quality model was used to estimate pollutant loadings based primarily on land use. A land use coverage was created by updating an old coverage through interpretation of recent photography. This land use coverage was also used to record all pollutant loadings for each land use polygon. Storm sewer maps were digitized and interpreted to create a coverage of storm sewer basins and sub-basins. By overlaying pollutant loadings with the sewer sub-basin layer, aggregated pollutant loadings for major sewer outfalls were calculated. Based on the loading information, critical areas of excessive pollutant loadings were located and the effectiveness of Best Management Practices (BMPs) to control pollutant loadings were evaluated.

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The Digital Orthophoto Production by the Automative Generation of DEM using Non-photogrammetric Scanner (비측정용 주사기를 사용한 수치표고모델의 자동생성에 의한 수치정사사진 제작)

  • Park, Woon-Yong;Yi, Gi-Chul;Lee, In-Soo;Kim, Jin-Su
    • Journal of the Korean Association of Geographic Information Studies
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    • v.3 no.2
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    • pp.24-36
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    • 2000
  • This study deals with the optimal method of orthophoto products using the non-photogrammetric scanners. we scanned positive film of aerial photographs at the different resolution and producted the orthophoto using the automatically generated DEM based on the Digital Photogrammetric Workstation, considering aerial image resolutions, DEM interval, resampling method and outpixel size. As a results, the acquired accuracy was worse in horizontal, but good in vertical. So It will be expected that orthophoto using non-photo grammetric scanner is good enough for the acquisition of GIS data and the calculation of soil volumes.

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A prediction and distribution of Moors Applying to Environment Assesment Based on E-GIS (환경지리정보 기반의 환경평가 적용시 습지분포 및 규모예측)

  • Kwak, Young-Joo;Park, Sang-Yong;Kang, In-Joon
    • Journal of Korean Society for Geospatial Information Science
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    • v.13 no.3 s.33
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    • pp.53-57
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    • 2005
  • The moors ecosystem is sensitive environment change and weak in artificial interference. These nature property are very important to people. It is necessary to preservation and protection the moors with a countermeasure. We really need to Environment-GIS(E-GIS) using Geographical Information System(GIS) and digital map including range, correct position and attribute data of moors. In this study, we take priority of making a database of moors management. Taking effect an environment assesment, we concentrate on a standard method of digital map production and a preservation of moors in our research using GIS. Especially, we have to preserve our important national heritage using GIS when Environment Assesment is conducting under construction. We suggest to pre-estimated model of hidden moors as analysing terrain, geological feature, a geographical distribution of plants and animals using GIS.

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A Study on Developing Model of Urban Planning Information System (도시계획정보체계 개발모델 연구)

  • 염형민;이승일;전유신
    • Spatial Information Research
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    • v.10 no.1
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    • pp.77-92
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    • 2002
  • In order to prevent indiscreet urban growth and harmonize urban development with environmental preservation, it is strongly required in Korea that urban planning should be reasonable and transparent. From this societal demand, the urban planning system was changed to be strengthened for the establishment of harmonious land-use order in urban space. However, implementation of the urban planning system demands a lot of information to analyze and estimate the present condition and problems of urban area. For this purpose, the information should quickly be collected, managed and analyzed. The urgent demand of information in urban planning field is able to be fulfilled with recent GIS and its relevant information technique, which can quickly, accurately and conveniently collect various spatial and statistical information, systematically analyze and manage them, and visually present the result of spatial analysis. This study suggested a urban planning information system and its basic implementing scheme to support the urban planning system with GIS and presented a development model of the urban planning information system using the recent GIS and its relevant information technique.

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Development of Open Land Management Information System(LMIS) Middleware (개방형 토지관리정보체계 미들웨어 개발에 관한 연구)

  • 서창완;백재현;홍성학
    • Spatial Information Research
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    • v.9 no.2
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    • pp.353-368
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    • 2001
  • Recently central and local governments developed a huge spatial database and system using full-scale Geographic Information System (GIS). But Inconsistent spatial data through duplicated database management drops off in efficiency and confidence of administration. It is difficult to share data because of their unique system and data type. Under these circumstances Ministry of Construction and Transportation (MOCT) has been carrying out Land Management Information System (LMIS) to computerize land administration and policy affairs and to implement land database such as law, spatial, attribute data. A prerequisite mission of LMIS is to develop open system for solving the problem of duplicated data management and data sharing and for supporting various computer environments such as hardware, software, network etc. The purpose of LMIS is to reuse the existing investment resources and to expand the existing system resources. Therefore the purpose of this study is to investigate a method of LMIS operation under the existing circumstances and expansion of the system in the future. To do this, Supporting various DBMS, GIS server, Distributing Computing Platform(Unix, NT Server) is needed. Especially LMIS need to be developed as open system with interoperability to get independence of application from various GIS servers.

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Study on Marine GIS Data Standards (해양GIS 데이터 표준 개발 방안에 관한 연구)

  • Park Jongmin;Suh Sanghyun
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.4 no.4
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    • pp.51-60
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    • 2001
  • Recently there have been many trials and studies for various approaching to build the effective application environments for Marine Geographic Information System(GIS) in the cross sections of marine and GIS fields. But the most of these contributions were focused on their special purposes, and these vertically unmanaged and independent development necessarily caused more basic issues, which would be one of the primary elements to establish Marine Geospatial Information Infrastructure(MGII). Herein, we discuss a brief conceptual aspects of Marine GIS and its components, and then we try to give some fundamental issues especially concentrated on the needs and importance of standardization as well as guidelines for that.

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A study on marine geographic information system developmental direction from inflect case study (활용사례 분석을 통한 해양GIS 발전방향에 관한 연구)

  • 김동기;서상현
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2001.10a
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    • pp.199-202
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    • 2001
  • A case study classified applications which is marine systhesize, port construction, marine product and fishery, marine transportation, marine safety. And this each case investigated that GIS system, Database, system contents and the subjective management, system strong and weakness. And so analysis a current issues that marine GIS developmental policy establishment

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