• Title/Summary/Keyword: 지리공간 분석

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Spatial Clustering Analysis of Fire in Gangwon-Do (강원도 화재의 공간적 군집 특성 분석)

  • BAE, Sun-Hak
    • Journal of the Korean Association of Geographic Information Studies
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    • v.21 no.3
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    • pp.93-103
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    • 2018
  • The purpose of this study is to analyze the spatial cluster characteristics of fire using long-term fire data. For this, fire data which were broke out in the last 40 years were converted into GIS data and spatial analysis was performed at Gangwon-do province's minimum administrative district level. In order to grasp the spatial distribution of the fire, Moran's I, Geary's Ci and Getis-Ord's Gi*, which are methods that analyze the local indicators of spatial association(LISA), were used. By integrating the characteristics of the spatial distribution of fire by integrating the results obtained from each analysis, the advantages of the individual analysis methods were reflected in the study results. As a result of the study, hotspot areas of fire in Gangwon-do was derived out. Among the hot spot areas, some areas, where the fire frequency is higher than the adjacent areas, have been identified. The results of this study can be used as information for predicting the fire hazard area and relocating of fire-fighting facilities in the study area.

Development of a Web-based Geospatial Information System for Analyzing and Assessing Geotechnical Information (지반정보 분석 및 평가를 위한 웹기반 지리공간정보 시스템 개발)

  • Lee, Sang-Hoon;Jang, Yong-Gu
    • Journal of the Korean Association of Geographic Information Studies
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    • v.10 no.4
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    • pp.142-152
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    • 2007
  • Geotechnical information database, foundation of underground geographic information system in 2nd NGIS plan, had been developing by Ministry of Construction and Transportation since 2000. This database contains not only soil condition, such as depth, type and color of layer, and ground water level, but also engineering properties used for foundation design and construction, for instance, standard penetration test, compression test. But, it is difficult to apply this database for analyzing and designing geotechnical works, because report document is only offered. In this paper, we have developed web-based geospatial information system for the effective uses. First, underground cross-section model is generated by location, layer, and engineering properties of geotechnical information database at the realtime process. Second, earth volume, bearing capacity, and settlement is calculated and potentials of soft ground, liquefaction are evaluated through pre-defined empirical formula. This process is operated by web-based client. We wish to strengthen the application capacity through this system in construction planning and design works.

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Geographically Weighted Regression on the Environmental-Ecological Factors of Human Longevity (장수의 환경생태학적 요인에 관한 지리가중회귀분석)

  • Choi, Don Jeong;Suh, Yong Cheol
    • Journal of Korean Society for Geospatial Information Science
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    • v.20 no.3
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    • pp.57-63
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    • 2012
  • The ordinary least square (OLS) regression model is assumed that the relationship between distribution of longevity population and environmental factors to be identical. Therefore, the OLS regression analysis can't explain sufficiently the spatial characteristics of longevity phenomenon and related variables. The geographically weighted regression (GWR) model can be representing the spatial relationship of adjacent area using geographically weighted function. It also characterized which can locally explain the spatial variation of distribution of longevity population by environmental characteristics. From this point of view, this study was performed the comparative analysis between OLS and GWR model for ecological factors of longevity existing studies. In the results, GWR model has higher corresponded to model than OLS model and can be accounting for spatial variability about effect of specific environmental variables.

GIS 산업에 있어서 지리학의 역할 및 수요에 대한 분석

  • 장은미
    • Proceedings of the KGS Conference
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    • 2004.05a
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    • pp.3-8
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    • 2004
  • 지리학은 공간, 지역과 환경의 관계를 다루는 학문이다. 지리학 전공자는 학계로 진출하여 연구논문 및 보고서 작성을 통하여 기여할 수 있고 다른 한편으로는 산업계로 진출하여 경제의 주체로서 사업을 수행하거나 이익집단에 소속하여 부가가치를 창출하는 형태로 학문의 발전을 측면에서 지원할 수 있다. (중략)

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The Design and Implementation of Isotherm and Isohaline Forecast System using Temporal GIS (TGIS 개념을 이용한 등온선 및 등염분선 예측시스템의 설계 및 구현)

  • Kwak, Ho-Young
    • Journal of Internet Computing and Services
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    • v.1 no.1
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    • pp.73-86
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    • 2000
  • The Geographic Information System (GIS) is a system that collects, stores, analyzes and processes geographic object data existing in space. The GIS is widely used in application fields related to geography such as city planning, land-register management, forest resources management, etc. The importance and necessity of the GIS have been well demonstrated, and therefore many studies on this system have been carried out. However, most of those studies have just treated geographic information as spatial information, but have not considered or have overlooked changes of spatial data dependent on time. For example, transportation information management and atmospheric phenomena forecast, have not exactly reflected the actual world which changes with the flow of time. In this thesis, a temporal GIS is established to effectively and precisely process information on space objects changing with time and a database is built up in reference to changes in water temperature and salinity. And the isotherm and isohaline forecast system implemented to support graphical tool.

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Conversion between 3D geographical information data formats (3차원 지리정보 데이터 포맷들 간의 변환)

  • Lee, Tae-Hoon;Hwang, Jung-Rae;Li, Ki-Joune
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2008.06a
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    • pp.75-81
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    • 2008
  • 오늘날 정부기관, 지자체 그리고 민간 기업 에서 3차원 지리정보데이터에 대한 필요성이 증가하고 있어 그에 대한 연구가 활발히 이루어지고 있다. 이러한 연구의 결과로 국내에서 3차원 지리정보 데이터 포맷인 3DF-GML(3DFeature-GML)이 개발되었다. 하지만 3DF-GML의 데이터는 기존의 Shape 파일만을 사용하여 구축되기 때문에 활용성에 제한을 받고 있다. 또한 제작 및 수정 시에는 제한된 애플리케이션 활용만이 허용된다. 이에 따라 3DF-GML의 활용성을 높이기 위해 국내의 데이터뿐 만이 아니라 국외에서 제작되어진 3차원 지리정보 데이터 포맷의 데이터를 활용할 수 있는 방안이 필요하다. 본 논문에서는 국내의 3차원 지리정보 포맷(3DF-GML)과 국외의 3차원 지리정보 포맷들간의 데이터 포맷을 비교 및 분석한다. 이러한 분석은 국외 3차원 지리정보 포맷의 데이터 활용 및 호환을 유도하는 것이 가능하다. 따라서 본 논문에서는 국내 3차원 지리 정보데이터(3DF-GML)와 국외 3차원 지리정보 데이터 간의 변환 규칙 및 방법을 제시한다.

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공간분석을 통한 연안해역 해상교통망 식별

  • 조익순;이정석;김학찬
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2023.11a
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    • pp.57-58
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    • 2023
  • 우리나라 연안해역에 급증하는 해상풍력단지 등 대규모 해양개발 행위로 인해 무분별한 해역을 점용하게 됨에 따라, 과거 관습적으로 이용해오는 해상교통로와 상충되어 발생하는 사회적 충돌이 문제가 되고 있다. 특히, 선박 대형화 및 자동화, 자율운항선박 등장 등 해상교통환경 변화에 따라 안전한 연안 해상교통환경 조성이 시급한 상황이다. 모든 연안해역의 해상교통 흐름 및 교통밀집도 분석에 따른 관습적 해상교통망을 식별하고, 이를 지정·구축하고자, 빅데이터 및 지리정보시스템(GIS) 기반 해양공간분석기법을 활용하여 검토 및 분석하였다. 이렇게 분석 및 식별된 결과는 DB화하여 디지털 GIS 관리시스템과 연계하도록 추진중이다.

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Analysis of the Spatial Distribution of Animal Clinic Using GIS (GIS를 활용한 동물병원의 공간분포 특징 분석)

  • Pak, Son-Il;Bae, Sun-Hak
    • Journal of the Korean association of regional geographers
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    • v.18 no.1
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    • pp.118-127
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    • 2012
  • Using GIS, animal clinic's spatial distribution characteristics were analyzed. Animal clinic location data was collected through the Internet's Open API service. Approximately 4,100 animal clinics are operated in South Korea in 2011. And 47 % of these are located in the Seoul area. Population, especially female population and apartment resident's ratio affects the location factor of the animal clinic. The number of 25~44 year-old woman and animal clinics are high correlation. In the animal clinic location, distance from the road is more important than the distance of the metro.

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Construction of Urban Crime Prediction Model based on Census Using GWR (GWR을 이용한 센서스 기반 도시범죄 특성 분석 및 예측모델 구축)

  • YOO, Young-Woo;BAEK, Tae-Kyung
    • Journal of the Korean Association of Geographic Information Studies
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    • v.20 no.4
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    • pp.65-76
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    • 2017
  • The purpose of this study was to present a prediction model that reflects crime risk area analysis, including factors and spatial characteristics, as a precursor to preparing an alternative plan for crime prevention and design. This analysis of criminal cases in high-risk areas revealed clusters in which approximately 25% of the cases within the study area occurred, distributed evenly throughout the region. This means that using a multiple linear regression model might overestimate the crime rate in some regions and underestimate in others. It also suggests that the number of deserted houses in an analyzed region has a negative relationship with the dependent variable, based on the multiple linear regression model results, and can also have different influences depending on the region. These results reveal that closure signs in a study area affect the dependent variable differently, depending on the region, rather than a simple or direct relationship with the dependent variable, as indicated by the results of the multiple linear regression model.