• International Journal of Computer Science & Network Security
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• v.24 no.1
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• pp.23-30
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• 2024

This study tries clarify the process of making decisions with geographic information systems and how to choose the best place for Khartoum State displaced people to relocate to in order to be closer to cheaper places with access to commodities and services. For network analysis, use a unique model. The network analysis tool was dependent on the following information: availability of goods and services, cheap cost, and proximity to the state of Khartoum.in choosing the best state. The study came to the conclusion that, in terms of accessibility, affordability, and availability of products and services, Gezira State is the best state for people who have been displaced from Khartoum State.When developing a new model, we recommend that all GIS users apply the theories of spatial analysis.

• 한국공간정보시스템학회:학술대회논문집
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• 2002.03a
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• pp.15-21
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• 2002

기존의 WebGIS는 구현방법에 따라서 서버중심과 클라이언트중심의 WebGIS모델로 구분할 수 있다. 서버중심의 WebGIS모델은 결과데이터가 이미지(JPG,GIF)로 클라이언트에 전송되므로 사용자는 기본적인 GIS 기능만을 처리할 수 있고, 데이터 확대 시 데이터가 손상되는 문제들이 있다. 클라이언트 중심의 WebGIS모델은 벡터데이터(Java-applet, ActiveCGM) 전송을 위해 고가의 특정 소프트웨어를 구입해야 하고, 플랫폼에 의존적이며, 표준화된 포맷이 아니므로 웹에서 데이터 상호 전송 및 호환의 문제가 있다. 본 논문에서는 기존의 WebGIS모델의 전반적인 분석을 통해서 각기 구축된 WebGIS의 구현방법과 문제점에 대해 고찰해 본다. 그리고 이런 문제점들이 대안인 XML(extensible Markup Language)으로 기술된 GML (Geographic Markup Language)과 SVG(Scalable Vector Graphics)를 이용한 WebGIS에 대한 연구와 향후 우리가 연구해야 할 방향에 대해 모색해 본다.

• Journal of Wetlands Research
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• v.1 no.1
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• pp.51-59
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• 1999

As important ecological systems, wetlands contribute a wide array of biological, social. and economic benefits. However, wetlands are lost until the present, primarily due to human induced land-use conversions. Society is placing demands for the efficient preservation and management on Woopo wetland as the first largest wetland in Korea. GIS(Geographic Information System) is a rapidly developing technology for handling, analyzing, and modeling ecological information on wetlands. In the paper, Woopo Wetland Management System has been developed by using Desktop GIS and Internet GIS technology to embrace major functions: information query and browsing, spatial searching on map, and rule-based analysis. As a menu-driven system, these functions are designed to be implemented through customized menus. The developed system is expected to be used for the effective publicity service as well as the professional management of Woopo.

• Journal of Korean Society for Geospatial Information Science
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• v.21 no.2
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• pp.85-92
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• 2013

This study determined the spatial distribution characteristics of carbon dioxide in Northeast Asia, connecting land coverage and vegetation index that have influence on concentration and distribution of carbon dioxide measured by GOSAT with GIS spatial analysis method. The results visibly showed that the spatial distribution of carbon dioxide had different patterns in dependent on the present status of land use in its surrounding area. Such high concentration of carbon dioxide was formed in developed sites like cities while forest areas showed low concentration of it. We also found that there were relatively high negative(-) correlations between carbon dioxide and vegetation, in statistically significant level. It is expected to be used as a basic data for establishing measures to reduce greenhouse gas in the future.

• Proceedings of the Korean Society of Agricultural Engineers Conference
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• 2001.10a
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• pp.314-318
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• 2001

The analysis of the spatial extent of flood inundation is important for flood mitigation. Geographic Information System (GIS) has advantage of analyzing spatial distributed data. Hydrologic Engineering Center's River Analsysis System(HEC-RAS) with HEC-GeoRAS was used to analyze flood inundation. HEC-GeoRAS, which is an ArcView GIS extension designed to process geospatial data for HEC-RAS, is a useful tool for storing, managing, analyzing, and displaying spatially distributed data. Rational formula and 24-hr duration probability precipitation data of Suwon meteorological station were used to estimate the flood runoff. And water profiles were calculated using the HEC-RAS model with HEC-GeoRAS. The flooded region is 8.24ha when 50-yr probability precipitation was applied and 8.8ha when 100-yr was applied to Bahlan study watershed which is located in Whasung county, Kyunggi province, having an area of $29.79km^{2}$.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2006.05a
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• pp.112-115
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• 2006

현대사회는 지능적으로 고도화되는 범죄에 대응하기 위하여 범죄 현상을 분석하려는 노력이 다각적으로 행해지고 있다. 컴퓨팅 기술과 GIS 기술을 이용한 범죄의 공간적 특성을 분석하려는 연구는 범죄 분야에서 최근 관심을 가지는 부분이다. 본 연구에서는 다양한 공간적인 특성이 나타나는 지역을 선정하여 범죄분포의 특성을 밝혀보고자 한다. 범죄는 발생 빈도가 높은 폭력, 절도, 강도, 성폭행의 범죄에 대해서 재구성하였으며 변수 도출을 위한 이론적 배경은 생활양식-일상이론과 환경범죄학을 기초로 하였다. 분석기법으로는 Hot spot 을 이용하여 범죄의 분포 형태를 분석하였으며 Buffer 분석을 하여 범죄 요인과 범죄 사이의 상관관계를 도출해 보았다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.10a
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• pp.341-347
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• 2008

본 연구에서는 대전광역시를 대상으로 지가의 중심성을 측정 하고 분포특성을 파악하여 도시의 계획 및 관리방안을 모색하는데 필요한 기초자료로 제공하고자 한다. 지가분포에 대한 관련이론 및 선행연구를 통해 지가가 중심지에 미치는 영향을 고찰하였으며, 지가의 분포특성에 따라 중심지가 어떻게 분포 되어있는지를 파악할 수 있었다. 분석방법으로는 ArcGIS 9.2버전 Spatial Analysis를 사용하여 공간내삽(interpolation)을 통해 등치선도를 작성하여 시각화 하였으며, 축별 3차원 경향도면을 작성하여 중심지 범위를 파악하였다. 그 결과 대전광역시의 중심부이자 신시가지인 둔산지역과 구시가지인 은행동 지역이 중심지역으로 나왔으며, 이 외에 부도심지역인 유성과 신탄진 그리고 주거중심지역인 노은동으로 나타났다. 중심지 범위는 신시가지가 상당히 넓게 분포되어 있었으며, 그 외 지역은 좁게 분포되었다. 도시의 계획적 관리를 위해서는 매년 지가를 분석하여 모니터링을 한 후 야기된 문제점을 보완해야 할 것으로 사료된다. 향후 시계열적 분석을 통한 중심지의 과거 변화특성을 통해 미래의 문제점을 미리예측하고 예방할 수 있는 연구가 필요하다.

• Journal of The Korean Society of Agricultural Engineers
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• v.46 no.7
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• pp.23-32
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• 2004

A spatial simulation model for rural and urban sprawl phenomena was developed with GIS and cellular automata techniques. The model finds out built-up areas invading toward rural areas required for development of existing urban area. Probability of land use change for optimizing the development area was determined using a land suitability analysis method interfaced with GIS methods, based on several criteria in terms of geographic and accessibility factors such as slope of land and distance from city center. Weighting values of the criteria were quantified by an analytic hierarchy process method. For model applicability test, the parameters of criteria were calibrated based on the changes in time series land use data of the test city for 1986, 1996, and 2000, which were classified by remote sensing techniques. Simulated and observed areas in land use maps for city shape of 1996 showed good similarities with each other through a morphology verification method. The model enabled us to evaluate the spatial expansion phenomena of cities considering boundary conditions, and also to simulate land use planning for rural areas in urban fringe.

• Proceedings of the KSRS Conference
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• 2003.11a
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• pp.978-980
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• 2003

This study explores the temporal and spatial features near 67years (1934 ?2001) and landcover change in last 14 years (1987-2001) in Shijiazhuang, China, based on 67-year time series data edited from historical maps, TM and ETM+ imageries by integrating GIS and remote sensing method. An index named Annual Growth Rate (AGR) is used to analyze the spatial features of urban sprawl, and Maximum Likelihood classification method is utilized to detect the land cover types change. At last, the relationship between urbanization and factors is analyzed.

• The Journal of the Korea Contents Association
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• v.11 no.4
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• pp.440-447
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• 2011

Selecting a suitable place is to determine the attributive conditions and qualified areas for the aim as factors and is to be fulfilled systematically for selecting the area which satisfies all these. This research tries to achieve a rational suitability analysis of residential development using the GIS modeling method and the hierarchical analysis process. A spatial and attributive analysis has been systematized for selecting a suitable place for the study and GIS analysis model has been used for the effective conclusion drawing for different levels. As a next step, a quantitative and qualitative evaluation index was created through complex consideration of the criteria and decision factors of the location selection, and weights were added depending on the relative importance of these factors. In particular, 3D terrain model simulation method has been used in order to reflect the aesthetic factors of the scenery which is an element of the subjective evaluation factors and considered qualitative and subjective evaluation factors which were not considered for the existing AHP technique. After the research, a location that satisfies complex requirements was found rapidly and accurately through the GIS model and hierarchical analysis.