• Title/Summary/Keyword: Cartographic Modeling

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Development of Cartographic Models for the Resolution of Conflicting Land Use (토지이용의 상충성 해결을 위한 지도학적 모델의 개발)

  • Yi, Gi-Chul
    • Journal of Korean Society for Geospatial Information Science
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    • v.2 no.1 s.3
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    • pp.131-139
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    • 1994
  • Geo-spatial information system technology and cartographic modeling techniques were used as a way to Improve the land use planning process. Off-road vehicle(ORV) trails, timber harvest sites, timber haul mads and wildlife ruffed grouse habitats areas should be allocated together in the Wayne National Forest in the United States. Automated spatial cartographic models were developed to resolve the conflicts of the multiple land use allocation. The techniques of descriptive and prescriptive modeling made the multiple land use allocation efficient and effective.

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A Study on Efficient Technique of 3-D Terrain Modelling (3차원 지형모델링의 효율적 기법에 관한 연구)

  • 윤철규;신봉호;양승룡;엄재구
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.15 no.2
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    • pp.207-213
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    • 1997
  • The purpose of this study is to aim at presenting efficient technique of 3-D Terrain Modelling through multilateral approach methods and to compare with raw data, using low-densed randomly located point data. The subject religion of this study are selected two sites and take into consideration for degree of freedom about low-densed randomly located point data. The result of this study by precision analysis of digital cartographic map-ping using low-densed randomly located point data bave shown that . First, making digital cartographic map, the technique of making it using low-desned randomly located point data by TIN-based results to good and fast run-time in A and B sites all together. Second, the visualization analysis results of digital cartographic map using TIN and GRID-based terrain modeling techniqus similar exacts A and B sites, but the terrain modeling techniqus by TIN-based are small data size than GRID-based with the data with the data size of saving with DXF files. Third, making digital catographic map using terrain modeling techniques by Grid-based, the standard errors of low-densed randomly located point data and interpolated data using gridding method have more good results by radial basis function interpolation techniques at A and B sites all together.

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Development of Cartographic Models of Openspace Management for Practical Use of GIS (GIS를 활용한 녹지관리 지도모델의 개발)

  • Gwak, Haeng-Goo;Cho, Young-Hwan
    • Journal of Korean Society for Geospatial Information Science
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    • v.5 no.2 s.10
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    • pp.45-54
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    • 1997
  • A mathodology to manage effectively urban open space using GIS(Geographic Information System) was developed to explore the methology of efficient urban open space management focusing on landscaped trees. Cartographic modeling technique was used for practical use of GIS as a case study of the Childeren's park in Kwangju city. First, spatial and attribute information for efficient landscaped tree management was acqired through the development of a tree management cartographic model. Second the information of location and the attribute of individual trees can be applied as a means of decision making in tree management. Thira optimal path of tree management and priority of management in work process of the selected urban open space could be determined according to the objective of park management.

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A Study of the Analysis of Water Tank Suitability for Forest Fire Extinction using Geographic Information System (GIS를 이용한 산불 진화용 저수탱크 적지 분석에 관한 연구)

  • Yi, Gi-Chul;Kim, Seung-Hwan;Nam, Jung-Chil;Park, Sung-Burm;Kang, Young-Jo;Ok, JinA
    • Journal of the Korean Association of Geographic Information Studies
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    • v.1 no.2
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    • pp.1-13
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    • 1998
  • The objective of this paper is to develop a cartographic model for water tank suitability for small forest fire extinction using GIS. Various digital maps were created using CAD & GIS for Amnam urban park, which is located in Seogu, Pusan city. The park had 4 small water tanks for fire extinction. The developed descriptive cartographic model identified the spatial effects of fire extinction due to the existing facilities. The prescriptive model to enhance spatial effects was developed for the determination and comparison of the effects of forest fire extinction due to the proposed facilities. This paper proved the techniques of GIS and cartographic modelling are significant for the suitability analysis of water tanks for small forest fire extinction.

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A Study on the Land Suitability Analysis Based on Site Selection Variables using Macro Language (매크로 언어를 이용한 입지인자 변수조정에 따른 토지적합성 분석에 관한 연구)

  • Yi, Gi-Chul
    • Journal of the Korean Association of Geographic Information Studies
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    • v.6 no.1
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    • pp.59-77
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    • 2003
  • This study is to validate the use of macro language for the land suitability analysis aiming to help to resolve land use conflicts. The silver-town suitability analysis is conducted on the Geejang Gun, Busan Metropolitan city. Such digital maps as terrain, road, facility, and water body were created for various cartographic models. A cartographic model identified the best suitable areas for silver-town development based on the such site selection variables as a distance to facility and road, slope and aspect of terrain, land use etc. Then, the other cartographic model identified the most favorable site among the candidate sites based on the comparison of the aspect of proximity, usage and environmental quality. Macro language was used for these modeling process and was used for the manipulation of all these spatial variables used in the models to resolve land use conflicts relating to the decision making process of the final site selection. This study will improve the effectiveness and rationality of the traditional site suitability analysis.

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A Study on the Digital Map Production and Water Supply management in GIS (GIS에 의한 수치지도 제작과 상수도 관리에 관한 연구)

  • 강준묵;윤희천;한승희
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.11 no.2
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    • pp.59-67
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    • 1993
  • Since society rapidly change, we need accurate and rapid information. Due to complication and rapid change of national infrastructure system, we meet a limitation of 2-D information management. Currently most digital cartographic data is acquired by manual digitizing with a tablet. Recently high cost scanner is widely used and preprocessing and postprocessing software of scanning are developed, so we expect its availability. In this study, we know that scanning is more convenient than digitizing with a tablet for digital mapping, also, possibility of 3-D modeling of vectorized document is suggested. Because information rapidly provided in the planning and implementation, operation efficiency and advance are archived in water supply project. Improvement of service for need of citizen and possibility combined information system connected with other system is presented.

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Application of Hydro-Cartographic Generalization on Buildings for 2-Dimensional Inundation Analysis (2차원 침수해석을 위한 수리학적 건물 일반화 기법의 적용)

  • PARK, In-Hyeok;JIN, Gi-Ho;JEON, Ka-Young;HA, Sung-Ryong
    • Journal of the Korean Association of Geographic Information Studies
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    • v.18 no.2
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    • pp.1-15
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    • 2015
  • Urban flooding threatens human beings and facilities with chemical and physical hazards since the beginning of human civilization. Recent studies have emphasized the integration of data and models for effective urban flood inundation modeling. However, the model set-up process is tend to be time consuming and to require a high level of data processing skill. Furthermore, in spite of the use of high resolution grid data, inundation depth and velocity are varied with building treatment methods in 2-D inundation model, because undesirable grids are generated and resulted in the reliability decline of the simulation results. Thus, it requires building generalization process or enhancing building orthogonality to minimize the distortion of building before converting building footprint into grid data. This study aims to develop building generalization method for 2-dimensional inundation analysis to enhance the model reliability, and to investigate the effect of building generalization method on urban inundation in terms of geographical engineering and hydraulic engineering. As a result to improve the reliability of 2-dimensional inundation analysis, the building generalization method developed in this study should be adapted using Digital Building Model(DBM) before model implementation in urban area. The proposed building generalization sequence was aggregation-simplification, and the threshold of the each method should be determined by considering spatial characteristics, which should not exceed the summation of building gap average and standard deviation.

Analysis of Groundwater Pollution Potential and Risk using DRASTIC System (DRASTIC SYSTEM을 이용한 지하수 오염 가능성 및 위험 분석 연구)

  • 이사로;김윤종
    • Spatial Information Research
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    • v.4 no.1
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    • pp.1-11
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    • 1996
  • DRASTIC system developed by U.S.EPA, is widely used for assessing groundwater pollution potential The system can be applied to site selection of well or waste disposal, Ianduse planning for groundwater protection, and monitoring. In this study, GIS(Geographic Information System) was established hydrogeological database of DRASTIC system and cartographic modeling to asre:; regional groundwater pollution potential around Chungju Lake. Hydrogeological factors of the system were depth to water, net recharge, aquifer media, soil media, slope and hydraulic conductivity. Risk of groundwater pollution to non -point source pollution, was also analyzed by incorporation of actual pollution sources(N, P) and DRASTIC system. The GIS data could be very quickly analysed hydrogeological characteristics of the study area by graphic user interface programs devel¬oped with AML(ARC Macro Language) of ARC/INFO.

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