• Title/Summary/Keyword: GIS projects

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Network Modeling of Paddy Irrigation System using ArcHydro GIS (ArcHydro를 이용한 GIS기반의 관개시스템 네트워크 모델링)

  • Park, Geun-Ae;Park, Min-Ji;Jang, Jung-Seok;Kim, Seong-Joon
    • Proceedings of the Korea Water Resources Association Conference
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    • 2006.05a
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    • pp.323-327
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    • 2006
  • During the past decades in South Korea, there have been several projects to reduce water demand and save water for paddy irrigation system by automation. This is called as intensive water management system by telemetering of paddy ponding depth and canal water level and telecontrol of water supply facilities. This study suggests a method of constructing topology-based irrigation network system using GIS tools. For the network modeling, a typical agricultural watershed included reservoirs, irrigation and drainage canals, pumping stations was selected. ArcHydro tools composed of edge, junction, waterbody and watershed were used to construct hydro-network. ArcHydro Model was then designed and the network was successfully built using the HydroID. Visualization using ArcHydro tools could display table property of each object. ArcHydro Model was linked to Agricultural Water Demamd and Supply Estimation System (AWDS) which developed by Korea Rural Community and Agriculture Corporation (KRC) to extract information of the study area. And menu of supply facilities information, demand analysis and supply analysis constructed for information acquisition and visualization of acquired informations.

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A Study on the Regional Differences in Geographic Information Infrastructure and Policy Agendas in Korea (우리나라 지리정보기반의 지역간 격차현황과 정책과제)

  • 박종택
    • Spatial Information Research
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    • v.11 no.4
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    • pp.409-420
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    • 2003
  • Geographic information systems are the crucial means in local governments to improve the diverse internal operations or service to citizens. A eat number of local governments have introduced GIS. However in spite of the rapid spread of GIS projects in local governments there are severe level differences of Geographic Information Infrastructure between medium or large cities and small cities or counties(Gun), especially in non-capital area. The differences are one of the main reasons of regional inequalities in local governments'administrative services. Thus this article suggested that the central government should place policy emphasis on improving the levels of geographic information infrastructure in small cities, counties(Gun) and especially non-capital areas.

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A Study on Landscape Sensitivity Analysis Using GIS (GIS 이용한 경관민감도분석에 관한 연구)

  • Lee, Jong-Sung
    • Journal of Environmental Science International
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    • v.15 no.11
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    • pp.1069-1075
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    • 2006
  • Starting from Jan. 1, 2006, pursuant to Article 28 of the Natural Environment Conversation Act for development acts with natural Landscape as a subject, the Consultation System on the Effects of Natural Landscape has been put into force in order to, in advance, analyze and predict the effects of natural Landscape according to the implementation of various development plans and development projects and also minimize adverse effects by preparing plans to reduce the effects. The consultation on the effects of natural Landscape is based on the objective and scientific approaches of data with Landscape to minimizing the effects of natural Landscape by developments with the preservation, restoration, outlook and harmonization as basic principles, and looking into the review of natural Landscape damage and harmonization of the site to be developed. For more objectively analyzing the visual effects of natural Landscape according to development acts, the purpose of this study is to provide basic materials of continued Landscape management plans in the planning stage of development plans and after the completion of developments by analyzing the sensitivity of Landscape and deriving areas, whose Landscape will be damaged, mainly focusing on the area of visibility using GIS.

Development of the korea spatial data infrastructure based on the open GIS component architecture (개방형 GIS 컴포넌트를 이용한 국가공간정보유통체계의 구축)

  • Seo, Young-Won;Lee, Deuk-Woo;Jin, Heui-Chae;Lee, Sang-Moo
    • Journal of Korea Spatial Information System Society
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    • v.2 no.2 s.4
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    • pp.49-58
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    • 2000
  • With the growing realization that the GIS data management becomes important more than ever, a great deal of the spatial data is being digitalized through various GIS projects, such as NGIS project. However, the integrated search and analysis for GIS data are highly constrained by the databases being heterogeneous and distributed among organizations. This paper is to introduce the system developed to solve the problem of interoperability in the heterogeneous and distributed databases environment. The system architecture is presented which is composed of spatial data servers, nodes, and a gateway. Also, the paper provides the implementation details of the client application to access and analyze the distributed and heterogeneous spatial data with the standardized interface. Finally, based on the technical architecture, the korea spatial data infrastructure is explained.

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A Study on Construction of Digital Cadastral Map for the GIS (GIS활용을 위한 지적도 전산화 방안 연구 -지적도 도형자료 제작 지침을 중심으로-)

  • 강영옥;안재영;조태영
    • Spatial Information Research
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    • v.6 no.2
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    • pp.201-216
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    • 1998
  • The :Ministry of Transportation and Construction has a plan to finish up the construction of digital topographic map which is based. on airphoto intepretation method by the end of 1998 as a part of NQS (National Geogaphic Information System) Project. The digital topographic map, especially 1:1,000 scale, is used as a basemap of many local government's GIS projects. The digital topographic map, however, does not include property information such as cadastral and urbanplan data that are essential for the GIS database of many local governments. This study aims to develop a set of technical guidelines for the construction of digital cadastral map, which can be used together with the 1:1,000 scale digital topographic map, through 1) analysis of the inconsistency between topographic map and cadastral map, 2) comparison of technical methods for the integration of GIS data that have different accuracy, and 3) requirement analysis of the departments related to urban planning of Seoul Metropolitan Govemment. For this research, edited digital cadastral map has been experimentally produced in pilot study area, a part of Hwanghak-dong, Shindang-dong, and Soongin-dong in Seoul.

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GIS/GPS based Precision Agriculture Model in India -A Case study

  • Mudda, Suresh Kumar
    • Agribusiness and Information Management
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    • v.10 no.2
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    • pp.1-7
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    • 2018
  • In the present day context of changing information needs of the farmers and diversified production systems there is an urgent need to look for the effective extension support system for the small and marginal farmers in the developing countries like India. The rapid developments in the collection and analysis of field data by using the spatial technologies like GPS&GIS were made available for the extension functionaries and clientele for the diversified information needs. This article describes the GIS and GPS based decision support system in precision agriculture for the resource poor farmers. Precision farming techniques are employed to increase yield, reduce production costs, and minimize negative impacts to the environment. The parameters those can affect the crop yields, anomalous factors and variations in management practices can be evaluated through this GPS and GIS based applications. The spatial visualisation capabilities of GIS technology interfaced with a relational database provide an effective method for analysing and displaying the impacts of Extension education and outreach projects for small and marginal farmers in precision agriculture. This approach mainly benefits from the emergence and convergence of several technologies, including the Global Positioning System (GPS), geographic information system (GIS), miniaturised computer components, automatic control, in-field and remote sensing, mobile computing, advanced information processing, and telecommunications. The PPP convergence of person (farmer), project (the operational field) and pixel (the digital images related to the field and the crop grown in the field) will better be addressed by this decision support model. So the convergence and emergence of such information will further pave the way for categorisation and grouping of the production systems for the better extension delivery. In a big country like India where the farmers and holdings are many in number and diversified categorically such grouping is inevitable and also economical. With this premise an attempt has been made to develop a precision farming model suitable for the developing countries like India.

A Suitability Analysis of the Factory Development Location using the Green Development Suitability Map (친환경 개발 적지도를 이용한 공장개발 입지의 적합성 분석)

  • Um, Dae-Yong;Lee, Jung-Kuen
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.29 no.3
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    • pp.265-274
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    • 2011
  • In this study, we tried to analyze the suitability of factory development location in environmental aspects using the Green Development Suitability Map(GDSMap) which was created by GIS analysis about the optimal location of development projects. For this, it was evaluated a influence of various environmental factors that were caused by developments by setting the legislative, environmental and ecological assessment items. In addition, we made the GDSMap by reflecting the characteristics of region & development project overall. And, it were compared a location distribution on the GDSMap & NEZMap(National Environmental Zoning Map) to analyze a suitability of factory development location about the 39 factories located in study area. Results of analysis, the factory locations of about 23% of total development projects were confirmed that it was performed in development restrictions area on the NEZMap which was utilized current in selecting the location of development projects. And the factory locations of about 31% of total development projects could confirm that it was performed in development restrictions area on the GDSMap which was made in this study. Therefore, it was judged that it must be determined the development location by considering the characteristics of development projects & that region when selecting the location of various development projects.

Implementation of User Interface for Geo-spatail Information Processing Toolkit using Open Source-based PostGIS (공개소스 PostGIS 기반 공간정보 처리 툴 킷 사용자 인터페이스 구현)

  • Han, Sun-Mook;Lee, Ki-Won
    • Korean Journal of Remote Sensing
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    • v.25 no.2
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    • pp.185-192
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    • 2009
  • Recently, open sources for geo-spatial information processing and analysis are being developed, and they are widely adopted for the various application development projects. Open sources in the geo-spatial communities consist in several levels or types: viewer, API-level, engine sources of SDK-level, or toolkits. Among them, spatial database engine of PostgreSQL-PostGIS is used in this study for the portable multi-geospatial information processing toolkit. This work can be extended to target-based applications with domain-specific spatial queries and analyses. Design and implementation are based on C Language Interface (LIBPQ) to PostGIS and OGC library on PostgreSQL database. Conclusively, PostGIS according to this approach is an important alternative to develop most applications dealing with multi-geospatial information due to its availability, extensibility, scalability, and stability.

An Analysis of Open Source GIS Software Ecosystem in Korea (국내 오픈소스 공간정보 소프트웨어 생태계 분석)

  • Kang, Youngok;Kang, AeTti;Kwon, HoeYoon
    • Spatial Information Research
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    • v.22 no.6
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    • pp.67-79
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    • 2014
  • These days open source softwares are being introduced and applied in many countries in the world. Especially, both government and private companies tend to become an spearhead in vitalizing the open source software. In this paper we try to check the degree of vitalizations in open source GIS software and to draw implications in vitalizing ecosystem of open source GIS software. Key players of open source GIS software ecosystem are government, private companies, academic and research institutes, and nonprofit foundations. Government does not have very little policies related to the investment and the support of open source GIS software. Private companies related to the open source GIS software are very few in the number and do not have any clear business model to make a profit. Academic and research institutes are weak in using the open source GIS software, which can be an major obstacle to cultivate software developers. OSGeo Korean branch, established in 2009, is the only nonprofit foundation in Korea which makes an effort to vitalize the open source GIS software, but its results are not very strong up to now in view of both quality and invigoration. In order to vitalize the open source GIS software ecosystem, lots of efforts of key players are needed. Especially, government efforts are very important because it can provide a trigger in vitalizing the open source GIS software ecosystem. The tasks that government should propel are R&D investment, test bed projects in the area of public sector, professional manpower training, and international cooperation and marketing.

Development of Web based Watershed and Sewer Management System using Computational Model and GIS (전산모형과 지리정보시스템을 결합한 Web 기반의 유역 및 하수도 관리시스템의 개발)

  • Kim, Joon Hyun;Park, Hyung Choon;Han, Yung Han
    • Journal of Industrial Technology
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    • v.20 no.A
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    • pp.63-71
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    • 2000
  • A web based watershed and sewer management system was developed for the analysis of stormwater runoff and sewer flow, and for optimal operation of sewer works using ArcView and SWMM. SWMM and ArcView were dynamically linked together using Avenue and Visual Basic in order to construct user-friendly management system. The developed system was applied to Choonchun city to verify its utilities. All the relevant field data were analyzed on the basis of developed system, and the modeling of runoff and sewer flow was implemented using RUNOFF and TRANSPORT blocks in SWMM. This system was connected to the management system of surface and subsurface environment management system in order to develop an integrated environmental management system. Futhermore, this system will be a critical part of overall control system of sewer works including sewer line and wastewater treatment plant. As this system can provide comprehensive prediction of flow and pollution profiles and analytical tool equipped with Web-GIS, it could serve widely as a tool not only for optimal management, but also for decision support system to examine the efficiency of planning and implementation of sewer projects.

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