• Title/Summary/Keyword: Spatial Data Infrastructure

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GIS Standardization : The American Experience

  • Tom, Henry
    • Journal of Korea Spatial Information System Society
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    • v.1 no.1 s.1
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    • pp.99-108
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    • 1999
  • 이제 GIS 표준은 국제적으로 공인된 과정을 거쳐 제정되고 있다. 이러한 과정과 표준자체의 중요성은 물론이며 표준 개발을 의한 GIS 표준 하부구조 즉 범 세계적 공간 정보 하부 구조 (the Global Spatial Data Infrastructure: GSDI) 의 개발도 아주 중요한 것이다. 기술이란 항상 변하고 있는 것이기에 GSDI등 표준 하부구조가 구축되면 새로운 GIS 표준은 이러한 하부 구조에 의해 쉽게 개발 되게 된다. 본 논문에서는 지금까지 구축된 공간 정보 표준 하부 구조는 어떠한 것이 있고 또 앞으로의 GIS 표준 개발 방향은 어떻게 나아가야 할 것인지 살피고자 한다.

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A Study on Abroad Export Strategy by Country of Spatial Open Platform -Focused on the Kingdom of Cambodia and the Emirate of Abu Dhabi- (공간정보 오픈플랫폼의 국가별 해외 수출 전략 연구 -캄보디아와 아부다비 에미리트를 중심으로-)

  • Kim, Kirl;Jeong, Jin Do;Lee, Jae Yong
    • Spatial Information Research
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    • v.22 no.3
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    • pp.9-21
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    • 2014
  • Recently the environment in geospatial information has conversed into the plaform. The platform based geospatial information contributes to save time and cost as well as maintain the consistency and stability in spatial data infrastructure. The Republic of Korea is now constructing and operating the spatial open platform called as the V-World(Virtual World), and searching for the possibility of its abroad export. The purpose of this study is to elicit the abroad export strategy by country of spatial open platform by comparing the cases of developing country, the Kingdom of Cambodia and newly developed country, the Emirate of Abu Dhabi, The Kingdom of Cambodia depends on foreign aids to develop the spatial data infrastructure and the Emirate of Abu Dhabi is inducing an advanced technology and high human power from overseas based on abundant oil money. This study establishes the abroad export strategy based on two country models such as Cambodia and Abu Dhabi by considering the characteristics in geospatial information, and suggests the ways of abroad export and the methods on fund raising for spatial open platform.

The Establishment of Service Cloud Based Expansion and Developing Plan for National Spatial Data Infrastructure (서비스 클라우드 기반 국가공간정보통합체계 확대발전방안 수립)

  • Youn, Junhee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.1
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    • pp.367-373
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    • 2016
  • The construction of National Spatial Data Infrastructure (NSDI) started from 2008 and was completed at 2012, with the aim of co-utilizing public agencies' national spatial information by integrating and linking. Despite the existence of the NSDI, an update of spatial data is not fully reflected because the spatial information has not been updated simultaneously by NSDI and public agencies. By examining the public agencies' services using the spatial information, a national budget is wasted because the re-usable similar services are duplicated. These issues could be solved by adopting a cloud system, whose concept is co-utilizing IT resources, to the NSDI. This study examined the service cloud based expansion and development plan for NSDI. The plan included an implementation strategy for a spatial information service cloud system and an establishment plan for a governance system. The service scenarios, concept diagram, and service functions for the system were derived in a system implementation plan. For the service functions, the unit functions of two modules were proposed and specific functions were derived. In the establishment of a governance system, the business roles and business processes were defined for organizations managing service cloud based NSDI. The business role and process were defined and derived by each service life-cycle step. With the proposed system implementation plan, a detail system design and composition of the organization could be possible, and a service cloud-based NSDI system could be implemented.

Monitoring of Urban Thermal Environment Change in Daejun Using Landsat TIR Satellite Data (Landsat 열적외 영상자료를 활용한 대전시 열 환경 변화 모니터링)

  • Choi, Jin-Ho;Cho, Hyun-Ju;Jong, Hoan-Do
    • Journal of Environmental Impact Assessment
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    • v.22 no.5
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    • pp.513-523
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    • 2013
  • This purpose of this work is to explore the characteristics of urban thermal environment distribution with the case of Daejeon. To do that, this work applied GIS Spatial Statistics to the LandSAT images gathered from 2000 to 2011. The urban thermal environment distribution at the time point of 2 showed high spatial autocorrelation. Therefore, it is judged that spatial autocorrelation is needed to increase the reliability and explanatory power of the characteristics of thermal environment distribution. In the case of the thermal in Daejeon, its positive clustering appeared high at the time point of 2, and its clustering in 2011 more gradually decreased than that in 2000 to 2011. In particular, given the decrease in the core H-H region, it was found that the thermal environment of Daejeon was greatly improved. However, since the rise in the region L-L means another changed like construction of a new city, it is judged that it is necessary to come up with a proper plan. It is considered that this analysis of the characteristics of urban thermal environment distribution in consideration of spatial autocorrelation L-L be useful for providing a fundamental material necessary for the policy and project of thermal environment improvement.

Development of SWAT SD-HRU Pre-processor Module for Accurate Estimation of Slope and Slope Length of Each HRU Considering Spatial Topographic Characteristics in SWAT (SWAT HRU 단위의 경사도/경사장 산정을 위한 SWAT SD-HRU 전처리 프로세서 모듈 개발)

  • Jang, Wonseok;Yoo, Dongsun;Chung, Il-moon;Kim, Namwon;Jun, Mansig;Park, Younshik;Kim, Jonggun;Lim, Kyoung-Jae
    • Journal of Korean Society on Water Environment
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    • v.25 no.3
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    • pp.351-362
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    • 2009
  • The Soil and Water Assessment Tool (SWAT) model, semi-distributed model, first divides the watershed into multiple subwatersheds, and then extracts the basic computation element, called the Hydrologic Response Unit (HRU). In the process of HRU generation, the spatial information of land use and soil maps within each subwatershed is lost. The SWAT model estimates the HRU topographic data based on the average slope of each subwatershed, and then use this topographic datum for all HRUs within the subwatershed. To improve the SWAT capabilities for various watershed scenarios, the Spatially Distributed-HRU (SD-HRU) pre-processor module was developed in this study to simulate site-specific topographic data. The SD-HRU was applied to the Hae-an watershed, where field slope lengths and slopes are measured for all agricultural fields. The analysis revealed that the SD-HRU pre-processor module needs to be applied in SWAT sediment simulation for accurate analysis of soil erosion and sediment behaviors. If the SD-HRU pre-processor module is not applied in SWAT runs, the other SWAT factors may be over or under estimated, resulting in errors in physical and empirical computation modules although the SWAT estimated flow and sediment values match the measured data reasonably well.

The Study on the National and Urban planning by using Spatial Data Information Infrastructure. (국토공간정보를 이용한 국토공간계획수립방안)

  • Choi, Bong-moon
    • Proceedings of the Korea Contents Association Conference
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    • 2004.11a
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    • pp.152-156
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    • 2004
  • Since 1995 the Korean Government has implemented the Master Plan for the National Geographic Information System(NGIS) to build up the National Spatial Data Infrastructure. This paper aims to evaluate the NGIS on the scope of National Land Use Policy and Urban Planning and to suggest the way to solve the current problems of National Land Use.

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The Study on the Demands and Utilization of 3D Geo-spatial Data in Local Governments (지방자치단체를 위한 3차원 공간정보 활용방안에 관한 연구)

  • Choi, Bong-Moon;Lim, Young-Taek
    • Proceedings of the Korea Contents Association Conference
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    • 2006.05a
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    • pp.71-74
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    • 2006
  • By the progress of Information Technology, spatial data have been recognizes as one of essential infrastructure. Now for the near future needs of urban simulation, management, u-City construction, etc. MOCT(Ministry Of Construction & Transportation) have been driving to construct the 3D Geo-spatial Data as one of National Spatial Data Information on a base of 2D GIS(Geographic Information System). In this study we tried to analysis the demands and the optimum implementation method of 3D Geo-spatial Data in local governments. As the result of study, the plan to utilize 3D Geo-spatial Data and to carry out its utilization, and the advanced vision of 3D GIS in for the public affairs of Local Governments and private business scope were proposed.

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Study for Spatial Big Data Concept and System Building (공간빅데이터 개념 및 체계 구축방안 연구)

  • Ahn, Jong Wook;Yi, Mi Sook;Shin, Dong Bin
    • Spatial Information Research
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    • v.21 no.5
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    • pp.43-51
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    • 2013
  • In this study, the concept of spatial big data and effective ways to build a spatial big data system are presented. Big Data is defined as 3V(volume, variety, velocity). Spatial big data is the basis for evolution from 3V's big data to 6V's big data(volume, variety, velocity, value, veracity, visualization). In order to build an effective spatial big data, spatial big data system building should be promoted. In addition, spatial big data system should be performed a national spatial information base, convergence platform, service providers, and providers as a factor of production. The spatial big data system is made up of infrastructure(hardware), technology (software), spatial big data(data), human resources, law etc. The goals for the spatial big data system build are spatial-based policy support, spatial big data platform based industries enable, spatial big data fusion-based composition, spatial active in social issues. Strategies for achieving the objectives are build the government-wide cooperation, new industry creation and activation, and spatial big data platform built, technologies competitiveness of spatial big data.

A Strategy for Activating Spatial Data Community : A Case of the NSDI CAP(Cooperative Agreements Program) in U.S. (공간정보 커뮤니티 활성화 방안 연구 : 미국 NSDI의 CAP 사례를 중심으로)

  • Kim, Ho-Yong;Nam, Kwang-Woo
    • Journal of the Korean Association of Geographic Information Studies
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    • v.14 no.1
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    • pp.26-39
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    • 2011
  • This paper reviews the strategy of activating spatial data community and its impacts, focusing on the Cooperative Agreements Program(CAP) of National Spatial Data Infrastructure(NSDI), established by Federal Geographic Data Committee(FGDC) in U.S. to facilitate cooperative data sharing. After thoroughly reviewing the 20 research categories followed by 350 cases, supported by CAP for the last decade, it turned out that since NSDI issued "Future Directions Initiative" in 2004, the CAP adopted all components of NSDI as CAP categories in attempting to reinforce the partnership rather than mainly deploying standardized meta-data. Also, CAP has been utilized as a means to enforce the role of NSDI as spatial data user and provider as well, recognizing that the spatial data community is essence for expandable and sustainable NSDI. Implementing CAP resulted in the sound structure of spatial data marketplaces increasing spatial data demand and promoting the relevant business due to diverse users.

A Study on the Reorganization of the National Spatial Information System (국가공간정보시스템 개편 추진 방향 연구)

  • Kim, Jeong Hyun;Kim, Soon Han;Kim, Sun Kyu;Kim, Sang Min;Jung, Jae Hoon;Heo, Joon
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.33 no.5
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    • pp.373-383
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    • 2015
  • Spatial information has been widely used for efficient land use and management, disaster management, environment management, infrastructure management, corporate marketing, and cultural assets management, and the need for spatial information is expected to be increased. For this reason, central government, local government and public institutions must establish a National Spatial Information System (Fifteen systems related to spatial information managed by National Spatial Data Infrastructure Policy office, NSIS) framework that guarantees high accuracy and quality. The NSIS will provide convenience usage of spatial information in the field of decision-making or civil support. However the current National Spatial Information System is mainly established with separate processes, which causes data redundancy, deterioration of information, passive opening, and sharing of the spatial data. This study suggests 4 standards, which has been derived by applying value-chain model to NSIS data flow, and they are ‘Production and Establishment’, ‘Integration and Sharing’, ‘Application and Fusion’ and ‘Release and Opening’. Based on these standards, the 15 NSIS were analyzed to draw out implications and reforming directions were suggested. By following these suggestions we expect more recent, consist, accurate, and connected National Spatial Information Service which will be more open to public and then satisfy the demands.