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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of the Korean Association of Geographic Information Studies
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The Korean Association of Geographic Information Studies
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Volume & Issues
Volume 11, Issue 4 - Dec 2008
Volume 11, Issue 3 - Sep 2008
Volume 11, Issue 2 - Jun 2008
Volume 11, Issue 1 - Mar 2008
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System Development for Automatic Extraction and Analysis of Hydrology-Related Watershed Characteristic Data
Hwang, Eui-Ho ; Kwon, Hyung-Joong ; Lee, Geun-Sang ; Yu, Byeong-Hyeok ; Koh, Deuk-Koo ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 1~12
This study was to develop the analyzing system for watershed characteristics data. The developed system has laid the foundation for preparing the input data in various hydrological models. The algorithms and items included in the system were derived from benchmarking of the GIS WEASEL, which used to prepare the input data of PRMS (Precipitation-Runoff Modeling System). The system was designed to develop and maintain the organized system using both object-oriented UML (Unified Modeling Language) and GIS component-based ArcObjects.
Application of the Developed Pre- and Post-Processing System to Yongdamdam Watershed using PRMS Hydrological Model
Kwon, Hyung-Joong ; Hwang, Eui-Ho ; Lee, Geun-Sang ; Yu, Byeong-Hyeok ; Koh, Deuk-Koo ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 13~22
The objective of this study is to evaluate the applicability of extracted PRMS input parameters by KGIS-Hydrology over Yongdam-Dam watershed. KGIS-Hydrology is a system for automatic extraction and analysis of watershed characteristic data. Input parameters of PRMS were generated from GIS data (DEM, soil, forest type, etc.) using KGIS-Hydrology. Multi-temporal meteorological data from Jangsu station of KMA (Korea Meteorological Administration) were used for all simulation periods. Input parameters of PRMS were optimized using observed runoff data of Yongdam-Dam station (1966-2001) and validated using observed runoff data of Yongdam-Dam station (2002-2006, Yongdam-Dam watershed). The results showed that the simulated flows were much closed to the observed flows of Yongdam-Dam (2002-2006) and Donghyang (2001-2004) station by 0.49~0.83 and 0.57~0.75 model efficiencies, respectively.
Analysis of Central Place Hierarchy Change in Daejeon Metropolitan City
Kim, Sang-Soo ; An, Sang-Hyun ; Shin, Young-Chul ; Kim, Houng-Tae ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 23~33
This study was performed to determine the central place hierarchy in Daejeon metropolitan city by examining its central place systems for the existing central place analyses through formation of urban spatial structure and GIS method. The central place structure and hierarch for the year of 2000 and 2005 were analyzed by using the model of W. K Davis modified, in which
GRID was applied. The analysis results showed the establishment of one CBD(existing center of Eunghaeng-dong and Sunhwa-dong) and two Subcenters (tourist resort of Yusung-dong and administrative center of Dunsan-dong) in Daejeon metropolitan city for the year of 2000. For the year of 2005, established were two CBD(existing center of Eunghaeng-dong and Sunhwa-dong and administrative center of Dunsan-dong) and two Subcenters (tourist resort of Yusung-dong and bus-terminal of Yongjeon) in Daejeon metropolitan city. The analysis results are expected to play a pivotal role in supporting the urban spatial policies in near future.
Ontology Modeling and Its Application for Managing Control Points
Cui, Yulan ; Hwang, Hyun-Suk ; Shin, Seong-Hyun ; Suh, Yong-Cheol ; Kim, Chang-Soo ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 34~42
The control points are important assets of countries which express the most accurate location information that is used in surveying land and other measurements. The location information has played an important role in our daily lives with the development of ubiquitous technology. While many researchers have recently applied new technology like RFID(Radio-Frequency Identification) to the effective management of control points, the research into data retrieval and the interoperability of control point data is still primitive step. Therefore, we construct a data modeling to effectively manage control points using ontology data structure and focus on semantic retrieval method. Our retrieval system can provide the inferred and associated information among data using Prot
-OWL tool. Our system has advantages in reducing the number of repeated queries by hierarchy searching and improving the searching time by association searching. Also, we propose an effective method to construct retrieval systems being able to edit items of categories and properties without editing the related codes.
Prototype of Crops Information System based on Ontology and WebGIS
Lee, Hong-Ro ; Baek, Jeong-Hyun ; Baek, Jeong-Ho ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 43~51
In this paper, we present WebGIS techniques that can acquire more information from users who offered information and location of region's crops. So that it can be search the information based on Ontology defining Metadata for understand and control more accurately. And this paper shows how to implement about prototype of crops information system for obtaining information of location. Our object is to offer results Service form search, to analyze question of user and to show the exact geographic information about question of user. So this paper can be provide convenience to users that can be show Semantic WebGIS system.
Flood Runoff Simulation using Radar Rainfall and Distributed Hydrologic Model in Un-Gauged Basin : Imjin River Basin
Kim, Byung-Sik ; Bae, Young-Hye ; Park, Jung-Sool ; Kim, Kyung-Tak ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 52~67
Recently, frequent occurrence of flash floods caused by climactic change has necessitated prompt and quantitative prediction of precipitation. In particular, the usability of rainfall radar that can carry out real-time observation and prediction of precipitation behavior has increased. Moreover, the use of distributed hydrological model that enables grid level analysis has increased for an efficient use of rainfall radar that provides grid data at 1km resolution. The use of distributed hydrologic model necessitates grid-type spatial data about target basins; to enhance reliability of flood runoff simulation, the use of visible and precise data is necessary. In this paper, physically based
model and ModClark, a quasi-distributed hydrological model, were used to carry out flood runoff simulation and comparison of simulation results with data from Imjin River Basin, two-third of which is ungauged. The spatial scope of this study was divided into the whole Imjin River basin area, which includes ungauged area, and Imjin River basin area in South Korea for which relatively accurate and visible data are available. Peak flow and lag time outputs from the two simulations of each region were compared to analyze the impact of uncertainty in topographical parameters and soil parameters on flood runoff simulation and to propose effective methods for flood runoff simulation in ungauged regions.
Extracting Three-Dimensional Geometric Information of Roads from Integrated Multi-sensor Data using Ground Vehicle Borne System
Kim, Moon-Gie ; Sung, Jung-Gon ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 68~79
Ground vehicle borne system which is named RoSSAV(Road Safety Survey and Analysis Vehicle) developed in KICT(Korea Institute of Construction Technology) can collect road geometric data. This system therefore is able to evaluate the road safety and analyze road deficient sections using data collected along the roads. The purpose of this study is to extract road geometric data for 3D road modeling in dangerous road section and The system should be able to quickly provide more accurate data. Various sensors(circular laser scanner, GPS, INS, CCD camera and DMI) are installed in moving object and collect road environment data. Finally, We extract 3d road geometry(center, boundary), road facility and slope using integrated multi-sensor data.
A Study on the Application of Social Network Analysis for Expanding the use of Spatial Data in Local Government
Kim, Ho-Yong ; Lee, Sung-Ho ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 80~91
The Purpose of this study is the applicaion of social network analysis for expanding the use of spatial data in local government. Spatial data generated from UIS projects play very important roles as a means of supporting decision making and solving complicated urban problems, but the utilization of the spatial data has not reach the expected level, considering to the huge amount of investment. Accordingly, there should be efforts in efficient management of spatial data, establishment of a sharing system, and expanded utilization of spatial data. Social network analysis applied to this research is a theory that explains the behaviors and patterns of units forming the system and measures distances between nodes, strength, etc. based on relations among nodes forming the network and the structural characteristics of the network. According to the results of surveying civil servants who were using spatial data on Busan Metropolitan City, obstacles to the sharing of spatial data were mostly non technical factors related to data users' attitude and their relations with circumstances. In order to expand the use of spatial data, this study performed social network analysis that applied the theory of planned behavior and examined the flow of spatial data, and by doing so, we analyzed related personnel's perception, identified obstacles to data sharing, and suggested a framework for promoting the expanded utilization of spatial data.
Biotope Mapping and Evaluation in Gangseo-Gu of Busan Metropolitan City
Choi, Song-Hyun ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 92~106
The purpose of this study is to identify land use types and to develop and evaluate biotope maps for Gangseo-Gu (ward) in Busan Metropolitan City, South Korea, using the Degree of Hemeroby. Hemeroby is a measurement concept or tool to assess the magnitude of human impact on ecosystems. Gangseo-Gu is the second largest Gu in Busan and is under strong development pressure. Before the field survey, biotopes were pre-classified based on digital maps, aerial photos and high-resolution satellite images. The method employed in biotope survey and mapping was adopted from the modified method used in Seoul, which carried out the first biotope mapping in Korea in 2000. In the field survey, a comprehensive biotope mapping method was used. The results showed that the total surface area of biotopes in Gangseo-gu was
(42,655 acres) and there were 29 biotope types with 13,631 polygons. The ratio of urban or built-up area 22.6% and the remaining areas were forest and open spaces, of which 22.6% were actual forest areas and 35.6% were paddy fields and other field areas. The Hemeroby Index of Gangseo-gu was 54.7, which suggests that Gangseo-gu has not yet been developed extensively and needs a long-term conservation and coordinated development plan.
Estimating The Development Potential of Small Size State-Owned Land using GIS
Yang, Kwang-Sik ; Ko, Suk-Chan ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 107~117
Numerous debates and efforts have been made to utilize land resources more effectively especially for the state-owned land in an urban area. Currently most of small size state-owned lands within urban areas are not used effectively due to the limitations in physical conditions and profitability. Some of these properties are occupied illegally and being used for various private purposes. Considering the shortage of land supply in urban areas, there need to be some improvements in the utilization and management of public land. The purpose of this study, therefore, is to identify and evaluate the location, current uses, physical conditions, and development potential of small size public properties in Seoul area. Data analysis was conducted by using GIS. The results of the study indicate that it is possible to utilize small size state-owned lands within an urban area more rationally and systematically by evaluating the characteristics of neighborhood and the site.
Analysis of Zoning and Land Use using Geographic Information System Database - A Case Study of Busan Metropolitan City in Korea -
Baek, Tae-Kyung ; Choi, Jung-Mi ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 118~126
The purpose of this study is to suggest the way of analyzing land uses to utilize GIS in the field of urban planning. The Busan Land Information System was built in early 2000s. The building data were used by digital map(1:1,000). And building register data in 2001 were utilized as the attribute data. Also, by calculating specialization factor, we distinct the characteristic of every land use of the city, and it compares every land use zone. This study calculated and compared an observation frequency and an expectation frequency of every building use and land use zone. We found that the use of the building tend to be controlled and guided by the land use zone.
Construction of Transportation Facility Database and Design Process for Intermodal Facilities
Lim, Mi ; Shin, Yong-Eun ; Baek, Tae-Kyung ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 127~135
Intermodal or transfer facilities is always necessary wherever different modes meet at one place and exchanges of passengers among the modes take place. Design of intermodal or transfer facilities requires a careful consideration of numerous legal and technical factors. This study intends to suggest the fundamental principles needed for design the intermodal facilities to enhance the level-of-service for transfer passengers as well as the efficiency of operation. Previous studies and relevant legal documentation are reviewed and examined. Steps in the design procedures are suggested, and data necessary for designing the facility is suggested. The above principles are applied to the real design of Busan KTX station in order to identify the problems.
Refinement of Building Boundary using Airborne LiDAR and Airphoto
Kim, Hyung-Tae ; Han, Dong-Yeob ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 136~150
Many studies have been carried out for automatic extraction of building by LiDAR data or airphoto. Combining the benefits of 3D location information data and shape information data of image can improve the accuracy. So, in this research building recognition algorithm based on contour was used to improve accuracy of building recognition by LiDAR data and elaborate building boundary recognition by airphoto. Building recognition algorithm based on contour can generate building boundary and roof structure information. Also it shows better accuracy of building detection than the existing recognition methods based on TIN or NDSM. Out of creating buffers in regular size on the building boundary which is presumed by contour, this research limits the boundary area of airphoto and elaborate building boundary to fit into edge of airphoto by double active contour. From the result of this research, 3D building boundary will be able to be detected by optimal matching on the constant range of extracted boundary in the future.
Assessment of the Effect of Digital Dlevation Model(DEM) Resolution on Simulation Results of the Physical Deterministic Lumped Parameters Hydrological Model
Kim, Man-Kyu ; Park, Jong-Chul ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 151~165
Ground slope and aspect are important parameters for physical deterministic water balance models like BROOK90 or hydrological models which attempt to calculate evapotranspiration, snowmelt, and net radiation. This study constructs a Digital Elevation Model(DEM) and examines how DEM resolution can change the average ground slope and aspect of a river basin and attempts to evaluate the effects on simulation results of BROOK90, a physical deterministic water balance model. The study area is Byungcheon river basin in Korea. DEM has been constructed using a 1:25,000 digital map with the methods of TIN and Topo To Raster. The total of 20 DEMs with 10m~100m resolution have been constructed, with a 10m interval. It was found that the higher the DEM resolution, the steeper the average ground slope value of the Byungcheon river basin. In turn, the direct solar radiation of a hilly area in the model increased the evapotranspiration and reduced the stream runoff in the Byungcheon river basin. On the other hand, a lower DEM resolution tends to move the average aspect from southeast to south in the Byungcheon river basin. Accordingly, it was found that stream runoff was reduced and evapotranspiration increased.
Study of Biomass Estimation in Forest by Aerial Photograph and LiDAR Data
Chang, An-Jin ; Kim, Hyung-Tae ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 166~173
Recently, problem of earth environment being attended with international issue, people are concerned about the environmentally-friendly and renewable biomass energy. Especially, the forest biomass is more important because Korea have to control carbon footprint for Kyoto Protocol and Convention on Climate Change. In case of Korea, forest area covers the land about 2/3 of all country. It is needed that more economical and efficient method to estimate the biomass by remote sensing data which include wide coverage and is progressed by one-step. In this study, we estimate forest biomass with LiDAR data and aerial photograph. Three biomass equation is used and estimate mean biomass of single tree and entire biomass in plots. The results are compared with field data.
of the mean biomass of single tree is greater than 0.8 and that of entire biomass in plots is greater than 0.65. In conclusion, the method using remote sensing data is verified more economical and efficient than previous field data method.
City Center Regeneration on City Center Function Type in Busan
Kim, Heung-Kwan ; Yeo, Sung-Jun ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 174~182
As the survey and the analysis the research can offer the characteristic methods for regeneration in the city of Busan. To figure out the functional regions of city center the research has analyzed 15 Dongs in city center and 12 Dongs in sub centers to find out the donut phenomenon and the regeneration of city center. The survey has chosen 22 variation factors using factor analysis. Major factors in each year are shown 4 factors, presenting 80.4% of the accumulated explanation rate. These factors explain residental centered, commercial centered, management centered, and development centered factor. The donut phenomenon emerges in the city centers as a residential function, and the phenomenon occurs in the sub centers as commercial or managerial function. So it is necessary to plan the regeneration of the total city center owing to the total donut phenomenon regarding the functions. And the methods to regenerate city centers should be established according to the various regional characterizations.
A Study on the Land Use and Housing Development of Hillside Areas in Busan Metropolitan City
Lee, Dong-Hyun ;
Journal of the Korean Association of Geographic Information Studies, volume 11, issue 3, 2008, Pages 183~192
The Purpose of this study is to find the land use condition and housing development of hillside areas in Busan metropolitan city. For this purpose, data of land use in more than meters above the sea level 80m are collected and analysed. The results of this study provide that 44.22% of the area of Busan hold more than meters above the sea level 80m and many aged buildings occupy the hillside areas. Moreover 30.13% of the redevelopment zone in housing redevelopment hold more than meters above the sea level 80m. In consequence, buildings of hillside areas should be maintained and it is necessary to make topographical adaptation plan. Based on these findings this study suggests that introduce the Conjoint Renewal Program.