• Title/Summary/Keyword: 공간.행정정보

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Developing the Satellite Image based e-Thematic Construction and Management System -Case Study of Supporting Forest Administrative Service- (위성영상기반 전자주제도 작성 및 관리시스템 개발 - 산림행정업무지원서비스를 사례연구로 -)

  • Jo, Myung-Hee;Jo, Yun-Won
    • Journal of the Korean Association of Geographic Information Studies
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    • v.9 no.1
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    • pp.89-100
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    • 2006
  • Recently the dramatical development of domestic spatial information technology and the successful construction of Korea NGIS(Nation Geographic Information System) have been the foundation of the scientific national territory utilization and management. However, there still exists the original problems to construct the thematic maps for supporting the various administrative services because administrative officials tend to depend on paper maps and inventories to generate spatial information, process, upgrade and manage. In this situation, there is a greater need to develop GIS system for the effective construction of various thematic maps. In this study, the satellite image based high accurate e-thematic construction and management system was developed to support the forest administrative service such as generating user based forest thematic maps, modifying them, analyzing and outputting through GIS, GPS and satellite images. For the case study, the previous forest paper map of Jeju Island was converted in format of raster and vector data using satellite images to maintain more exact location information so that this system helps to manage domestic spatial information scientifically and effectively within shorter time then support the standard for domestic spatial information. Moreover, this system plays the role of DSS(Decision Supporting System) for forest administrative affairs by integrating the attribute data, managing the GPS data and linking the multimedia data. For this, the additional main objective of this study was acquired powerful GIS component, which is called as e-mapping component, so that it could be regarded as enabling interoperability and reusability within this application. For the future works, the essential element idea and technology in this study could be applied very usefully to other official works such as constructing thematic maps and supporting the desired affairs.

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An Analysis on the Characteristics of Commercial Distribution in Seoul Using GIS (GIS를 이용한 서울시 상업업무기능의 분포특성 분석)

  • 이창수;김영식
    • Spatial Information Research
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    • v.4 no.1
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    • pp.55-74
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    • 1996
  • The purpose of this paper is to search the factors which influence the distribution of commercial function. Commercial function plays the most important role in determining urban spacial structure. The location of commercial function is influenced by topography, accessibility, population, and urban policy. Due to the lack of formal data these factors have not been studed to the full. But GIS makes it possible to conduct researches in analyzing these factors. The results are : (1) The index of employment density connects with topography, population, accessibility and urban policy. (2) The location of commercial function is influenced by these factors (3) GIS is a useful tool in analyzing urban spacial structure.

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Update for Building Layers of Digital Map Using LiDAR Data and Aerial Images (LiDAR자료와 항공영상을 이용한 수치지형도 건물레이어 갱신)

  • Yoo, Hwan-Hee;Goo, Sin-Hoi;Kim, Seong-Sam
    • Journal of Korean Society for Geospatial Information Science
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    • v.14 no.2 s.36
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    • pp.43-53
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    • 2006
  • As NGIS project has been implemented in 1995 and effectiveness of geospatial information increased, Digital maps serve several purpose in administrative, living, and the variety of industrial fields. But, Digital maps have difficulties in application of managing urban facilities due to many differences with real world information caused by high update cost and long generation period. This paper suggests an update method of building layers of digital map in urban area; first, we verify the filtered building information using digital areal imagery and LiDAR data which is high-accurate and also can be faster and more economical in 3D information acquisition, and finally update building layers by comparing with the existed digital map. Future research will concentrate on automatic removal of the small and the tree regions, discrimination of buildings and vegetation for generating and updating building layers using LiDAR data.

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A Comparative Analysis of Areal Interpolation Methods for Representing Spatial Distribution of Population Subgroups (하위인구집단의 분포 재현을 위한 에어리얼 인터폴레이션의 비교 분석)

  • Cho, Daeheon
    • Spatial Information Research
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    • v.22 no.3
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    • pp.35-46
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    • 2014
  • Population data are usually provided at administrative spatial units in Korea, so areal interpolation is needed for fine-grained analysis. This study aims to compare various methods of areal interpolation for population subgroups rather than the total population. We estimated the number of elderly people and single-person households for small areal units from Dong data by the different interpolation methods using 2010 census data of Seoul, and compared the estimates to actual values. As a result, the performance of areal interpolation methods varied between the total population and subgroup populations as well as between different population subgroups. It turned out that the method using GWR (geographically weighted regression) and building type data outperformed other methods for the total population and households. However, the OLS regression method using building type data performed better for the elderly population, and the OLS regression method based on land use data was the most effective for single-person households. Based on these results, spatial distribution of the single elderly was represented at small areal units, and we believe that this approach can contribute to effective implementation of urban policies.

Selection of agricultural income crops cultivation suit-land using GIS (지리정보시스템을 이용한 농촌소득작목재배적지선정)

  • 허문희;피의섭;이도한;이석현
    • Spatial Information Research
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    • v.2 no.1
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    • pp.75-83
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    • 1994
  • Many application using GIS has been carried out by governments and public office, and Cungbuk province has produced very effective results on agricultural income crops cultivation suit-land, since executed local autonomy system imported GIS for cope with variation of local administration environment, science of administration. The result on the selection of agricultural cultivation suit-land, in fact, offered us very useful information of the policy establishment concern with agriculture. In this study, we had analysed suit elements of cultivation : soil texture, soil drain, soil slope, soil depth and pH. ARC/INFO and ERDAS systems were used for this study.

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An Efficient Location Encoding Method Based on Hierarchical Administrative District (계층적 행정 구역에 기반한 효율적인 위치 정보 표현 방식)

  • Lee Sang-Yoon;Park Sang-Hyun;Kim Woo-Cheol;Lee Dong-Won
    • Journal of KIISE:Databases
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    • v.33 no.3
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    • pp.299-309
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    • 2006
  • Due to the rapid development in mobile communication technologies, the usage of mobile devices such as cell phone or PDA becomes increasingly popular. As different devices require different applications, various new services are being developed to satisfy the needs. One of the popular services under heavy demand is the Location-based Service (LBS) that exploits the spatial information of moving objects per temporal changes. In order to support LBS efficiently, it is necessary to be able to index and query well a large amount of spatio-temporal information of moving objects. Therefore, in this paper, we investigate how such location information of moving objects can be efficiently stored and indexed. In particular, we propose a novel location encoding method based on hierarchical administrative district information. Our proposal is different from conventional approaches where moving objects are often expressed as geometric points in two dimensional space, (x,y). Instead, in ours, moving objects are encoded as one dimensional points by both administrative district as well as road information. Our method is especially useful for monitoring traffic situation or tracing location of moving objects through approximate spatial queries.

Comparative Evaluation of Albedo Distribution among Administrative Districts (행정구역별 알베도 분포 비교 평가)

  • Kim, Ki-Youl;Um, Jung-Sup
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2010.09a
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    • pp.384-386
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    • 2010
  • 본 연구의 목적은 도시고온화와 도시열섬 현황을 파악하는데 있어 중요한 역할을 하는 도시 지역의 알베도와 지표면의 토지이용 자료를 이용하여 한반도 행정구역의 알베도 분포를 비교 평가하고자 하는 것이다. 도시 지역의 알베도와 토지이용을 현장조사 할 경우 많은 시간과 비용이 소요되기 때문에, 시간적 경제적인 비용절감효과를 위해 전 지구적으로 변화를 감지할 수 있도록 NASA에서 제공하는 MODIS 위성영상 자료를 사용하여 분석하였으며, 그 결과 서울, 부산, 대구 등 주요 도시를 중심으로 대체적인 알에도 값이 낮게 나타났다. 이는 도시 지역의 인공 환경의 영향으로 인하여 주요 도시 지역이 주변 지역보다 알베도 수치가 낮게 나타났음을 알 수 있고 이러한 알베도 수치는 도시 열환경에 직접적인 영향을 주고 있으며 따라서 도시고온화와 도시열섬 현상을 감소시키기 위하여 도시 내 빌딩 및 도로의 재질개선, 지붕 및 도로 포장, 건물의 외벽을 밝은 색으로 교체 등의 방법으로 지표면 알베도를 높이기 위한 방안 마련이 시급 할 것이다.

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Analysis of Spatial Patterns and Estimation of Carbon Emissions in Deforestation using GIS and Administrative Data (GIS와 행정정보를 이용한 교토의정서 제3조 3항 산림전용지의 공간패턴 및 탄소배출량 분석)

  • Lee, Jung-Soo;Park, Dong-Hwan
    • Journal of Forest and Environmental Science
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    • v.27 no.1
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    • pp.39-46
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    • 2011
  • This study purposed to analyze the spatial pattern and the amount of carbon emission at the deforestation area in Gangwondo. Forest geographic information system(FGIS) and administrative data were used in the analysis. The area size and spatial patterns of deforestation area were analyzed according to the article 3.3 of Kyoto protocol. Forest administration data for 9 years from 2000 to 2008 were entered into a database. Fifty-nine percent of deforestation area was found within 200m of the road network, and seventy-five percent of the area was found within 500m. Theoretical carbon emission based on deforestation area was estimated at 6,968tc. Carbon emission of national forest was 5.7times higher than that of private forest.

3D Tile Application Method for Improvement of Performance of V-world 3D Map Service (브이월드 3D 지도 서비스 성능 향상을 위한 3D 타일 적용 방안 연구)

  • Kim, Tae Hoon;Jang, Han Sol;Yoo, Sung Hwan;Go, Jun Hee
    • Journal of Korean Society for Geospatial Information Science
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    • v.25 no.1
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    • pp.55-61
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    • 2017
  • The V-world, korean type spatial information open platform, provides various services to easily utilize 2D, 3D map and administrative information of the country. Among them, V-world 3D map service, modeled in individual building unit, require requests for each building model file and the draw calls for drawing models on the screen by the request. This causes a large number of model requests and draw calls to occur that increase the latency occurring during the transmission and conversion process between the central processing unit(CPU) and the graphic processing unit(GPU), which lead to the performance degradation of the 3D map service. In this paper, we propose a performance improvement plan to reduce the performance degradation of 3D map service caused by multiple model requests and draw calls. Therefore, we tried to reduce the number of requests and draw calls for the model file by applying a 3D tile model that combined multiple building models to single tile. In addition, we applied the quadtree algorithm to reduce the time required to load the model file by shortening the retrieval time of the model. This is expected to contribute to improving the performance of 3D map service of V-world.

The Driving Strategy of Korea Land Information System and Integrated National Land Information System (한국토지정보시스템과 국토통합정보시스템의 추진 전략)

  • Kim, Hyeong-Tae
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2007.10a
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    • pp.159-166
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    • 2007
  • 정부는 기술을 활용한 통합 토지 데이터베이스 구축하고 GIS 초고속국가망을 통한 전국적인 네트워크를 활용하여 토지관련 자료들을 정확하고 효율적으로 유지관리하고 토지행정 업무의 생산성을 높이며 토지정책의 적시성 및 과학성을 도모하고, 대국민 민원서비스의 획기적인 향상시키기 위해 한국토지정보시스템을 개발하여, 운영 중에 있다. 한국토지정보시스템은 1998년 개발이 시작되어 전국의 지방자치단체로 단계적으로 보급되었으며 2006년 전국 250개의 지방자치단체에 확산이 완료되어 현재 약 80%의 민원서류가 전산으로 발급되고 있으며 현재 고도화 사업이 진행 중에 있다. 또한 정부는 국토이용 관련 대국민 정보 서비스 개선과 국토정보의 효율적 관리 및 유비쿼터스 시대의 다양한 서비스를 충족하기 위해서 한국토지정보시스템을 기반으로 하는 국토통합정보시스템 구축 추진을 계획하고 있다. 본 연구에서는 한국토지정보시스템의 현황 분석과 개선사항 도출을 기반으로 국토통합정보 시스템을 구현하기 위한 전략 방향과 추진 과제를 제시하고자 한다.

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