• Fire Science and Engineering
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• v.21 no.2 s.66
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• pp.14-23
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• 2007

In this thesis, we analysed urban fires and developed the predictive mapping technique by using GIS and spatial statistics. It presented the correlation between the fire data of last 5 years ($2001{\sim}2005$) and the factor of civilization environment in Daegu city. We produced a model of fire hazard predictive map by analyzing uncertainty of fire with the quadrat analysis and the poisson distribution.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2004.03a
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• pp.117-123
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• 2004

우리나라에서는 그동안 급속한 경제발전과 함께 많은 SOC 건설공사가 이루어졌으나 환경성의 고려와 보존에는 미흡하였다. 그러나 경제가 발전되고 국민의 의식수준이 향상됨에 따라 환경에 대한 관심과 중요성이 높아졌으며, 친환경적인 건설의 요구가 증대되고 있다. 이러한 추세에 따라 친환경 건설을 위한 많은 연구와 노력들이 진행되고 있지만, 타 분야에 비해 정보화 및 전산화, 특히 GIS의 활용은 많이 미흡한 실정이다. 따라서 본 연구에서는 초기 건설계획 및 설계분야에 최신 GIS 기술을 접목ㆍ활용함으로써 환경성이 고려된 국토개발을 지원하고자 하였다. 이를 위해 도로건설분야를 대상으로 하여 다양한 대안노선들의 환경성을 비교ㆍ검토하여 최적의 노선선정을 지원하고, 선정된 노선에 대하여 영향평가분석을 수행할 수 있도록 시범시스템을 개발하였다. 기존의 환경성 검토ㆍ평가방법이 종이도면과 서술적인 기술에 의지했던 반면, 본 시스템은 수치지도 및 위성영상을 활용한 다양한 GIS 공간분석결과를 2차원 또는 3차원적으로 디스플레이하여 객관성과 효율성을 향상시키면서 시각적 효과를 높여줄 수 있다는 장점이 있다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.06a
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• pp.227-231
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• 2008

최근 국내에서 USN(Ubiquitous Sensor Network) 연구가 활성화 되면서 GIS 분야에서도 USN을 연동한 실시간 GIS 시스템이 구축되고 있다. GIS 분야 중 지하시설물은 그 중요성에 비해 관리 감독의 어려움에 의해 정량적 분석이 어려운 실정이다. 본 연구에서는 지하시설물을 획기적으로 정밀하게 관리 감독할 수 있는 UFSN(Underground Facility Sensor Network) 기반 지하시설물 관리시스템을 구축하기에 앞서 요구되는 지하시설물 관리데이터를 분석하였다. 또한 이 관리데이터를 구조화하는데 필요한 메타데이터를 USN 메타데이터 표준과 국토해양부 3차원 공간정보 메타데이터 표준을 조합하여 지하시설물 관리시스템에 필요한 메타데이터로 분류하였고, 분류된 메타데이터를 작성할 수 있는 지하시설물 메타데이터 편집도구를 개발하였다. 본 연구에서 제시한 UFSN 기반 지하시설물 메타데이터는 개발된 편집도구에 의해 작성되어 실제 관리시스템에 적용될 예정이며, 향후 USN 기반 GIS 시스템 개발에 크게 기여할 수 있을 것으로 기대된다.

• Journal of Korean Society for Geospatial Information Science
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• v.19 no.1
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• pp.3-11
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• 2011

This paper aims to develop a web based GIS system which is able to evaluate and visualize the overall degree (in terms of pleasantness and aesthetics) of pedestrian friendliness of the environment, as well as pedestrians' convenience through a Walkability Indicators that simplify pedestrian environment elements into a quantitative index in accordance with characteristics of pedestrian space. To make this goal come true, we developed and applied Walkability index which can measure the pedestrian environment through reflecting quantitative Indicators based on GIS supplementing the limit of Literature Review. In addition, in order to develop index we utilized AHP(Analytic Hierarchy Process) and we displayed measurement result on study area through web GIS Services. The proposed pedestrian measurement system is expected to be applicable in the visualization of pedestrian movements and the evaluation of convenience levels of pedestrian environment.

• Spatial Information Research
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• v.14 no.2 s.37
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• pp.223-234
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• 2006

In order to examine spatio-temporal characteristics of coastal water quality, we applied GIS spatial analysis to the water quality data collected from observation points located on Korean coastal area during 1997$\sim$2004. The water quality parameters measured included: chlorophyll-a, pH, DO, COD, SS, dissolved inorganic nitrogen, dissolved inorganic phosphorous, salinity, temperature. The water quality data used in this paper was obtained only at selected sites even though they are potentially available at any location in a continuous surface. Thus, it is necessary to estimate the values at unsampled locations so as to analyze spatial distribution patterns of coastal water quality, Owing to this reason, we applied IDW(inverse distance weighted) interpolation method to water quality data and evaluated the usefulness of IDW method. After IDW interfolation method was applied, we divided the Korean coastal area into 46 sections and examined spatio-temporal patterns of each section using GIS visualization technique. As a result of evaluation, we can blow that IDW interpolation and GIS are useful for understanding spatial and temporal distribution characteristics of coastal water quality data which is collected from a wide area far many years.

• Journal of Korean Society of Forest Science
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• v.78 no.2
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• pp.168-176
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• 1989

Recent development of geographic information systems(GIS) provides a great deal of potential in handling a variety of spatial data required by forest resource managers. This study is designed to identify a possible GIS application in forest pest management. Several mountain pine beetle risk assessment parameters(stand characteristics, weather conditions, and topographic factor) were spatially analyzed through computer map overlaying operations in order to estimate the hazard level of the pest damage. In addition, the expected infestation route from an initially infected forest stand was located through further may analysis operations(distance measurement and connectivity analysis). Although current GIS technology may have a few limitations in operational situations, the computer based GIS has been proven as an invaluable tool to resource managers by providing flexible spatial data handing capabilities.

• Spatial Information Research
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• v.7 no.2
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• pp.175-190
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• 1999

Recently , as GIS technology is rapidly improved and stabilized, there are some needs to reuse pre-developed and powerful GIS technology. GIS standardization based on components and open interfaces becomes a way to solve those reusability of previous GIS technology. This GIS standardization currently focuses on building the GIS Data Infrastructure that is being deployed globally. Especially, OpenGIS consortium which is mainly made up of international GIS leading vendors is announcing some GIS abstract specifications and implementation specifications. This study focuses on how could we design and implement the OLE/COM-based data provider component based on various DBMS or file systems, how could these data provider components be used for enterprise UIS(Urban Information Systems) and how could various formatted GIS data be shared in one system. Also some problems practically caused by an implementation process of data provider component are listed up and some solutions are given. Furthermore, design and analysis of UML(Unified Modeling Language) was reformed through the data provider component development task and this UML methodology is able to indicate a standardized model for newly developed data provider component.

• Spatial Information Research
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• v.16 no.2
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• pp.207-218
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• 2008

Providing services in a wireless environment with existing wired-based GIS solutions have many limitations such as slow communication, processing rates and screen size. This study suggested data optimization techniques in a mobile environment to overcome those limitations in four steps. In order to test the methods suggested in the study, experiments are conducted using Gangnam-gu as a test site. An existing GIS engine built in a wired environment was compared with the optimized GIS engine from the study in terms of performance in the same environment. They were also compared and analyzed in terms of response data size, number of requests processed per second, and average time to process a request. The results proved that the proposed engine shows significant improvements in performance compared with the wired GIS.

• Journal of the Korean Association of Geographic Information Studies
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• v.5 no.3
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• pp.68-76
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• 2002

As modern public administrations are constructing homepages based on GIS and enhancing public services through interactive communication with their citizens, cyber governance and internet GIS have been conglomerated more than before. As such, the transformation from 'GIS for public management' to 'Internet GIS for cyber governance' is in progress. In the future, cyber governance based on Internet GIS can be a new paradigm for public management. The aim of this study is to look for the applications of internet GISs for cyber governance. For this purpose, the study examines characteristics of cyber governance and internet GIS and analyses similarities between them. Based on this analysis, the study proposes various ways of applying internet GISs for cyber governance.

• Journal of the Korean Association of Geographic Information Studies
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• v.9 no.4
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• pp.193-203
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• 2006

This study conducts mapping of the results of topographical dissected degree analysis using GIS and analyzes relation between dissected degree and land use of study area. Application of GIS typographical dissected degree analysis can greatly save time and efforts comparing with traditional manual work, and makes it possible to vary analysis variables widely, which gives possibility to carry out 2-dimensional research using these results. This study, taking start from such background, tries to find the way to carry out dissected degree analysis with the use of GIS, compares the results of the analysis with the land use map, and tries to find the ways of practical application of this analysis results. The results of analysis of the relation between basin dissected degree and agricultural land use of Gangneungnamdae river study area show that for agricultural land use topographical dissection is mostly distributed in quite developed area. Specifically, land used for paddy and dry fields appeared to have higher level of correlation with dissection degree. When comparing dissected degree and agricultural land use interrelation for each area, comparison of intensively formed urban districts with suburbs showed low correlation.