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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Korea Spatial Information Society
Journal Basic Information
Journal DOI :
The Korean Association of Geographic Inforamtion Studies
Editor in Chief :
Volume & Issues
Volume 6, Issue 2 - Oct 1998
Volume 6, Issue 1 - Apr 1998
Selecting the target year
A Model Plane Photographing System and Information Collection for Facilities
Journal of Korea Spatial Information Society, volume 6, issue 1, 1998, Pages 1~10
The need of aerial photographs is increasing for small area development such as facility management, site planning, residence planning, and so on. It is not an easy task, however, to take aerial photographs using an aircraft for metric photogrammetry because of the strict regulatins of flying and also photographing in Korea, as well as the cost. As one of efficient methods to take large-scale aerial photographs, we investigated the ways of photographing by a remote controlled model plane(RC plane) with a light weight non-metric camera on board. We had examined the principles of RC planes and assembled a RC plane, And test photographing was performed. Even though we obtained reasonably good stereo-pairs for the grounds and facilities using the RC plane, we found there were yet many problems to be solved, such as difficulties of RC plane control, camera focusing, and accumulation of dust on the camera lens.
Generalization of Point Feature in Digital Map through Point Pattern Analysis
Journal of Korea Spatial Information Society, volume 6, issue 1, 1998, Pages 11~23
Map generalization functions to visualize the spatial data or to change their scale by changing the level of details of data. Until recently, the studies on map generalization have concentrated more on line features than on point features. However, point features are one of the essential components of digital maps and cannnot be ignored because of the great amount of information they carry. This study, therefore, aimed to find out a detailed procedure of point features' generalization. Particularly, this work chose the distribution pattern of point features as the most important factor in the point generalization in investigating the geometric characteristics of source data. First, it attempted to find out the characteristics of distribution pattern of point features through quadrat analysis with Grieg-Smith method and nearest-neighbour analysis. It then generalized point features through the generalization threshold which did not alter the characteristics of distribution pattern and the removal of redudant point feautres. Therefore, the generalization procedure of point features provided by this work maintained the geometric characteristics as much as possible.
Relative Slope - stability Mapping in the Southeastern Part of Korea Using GIS
Journal of Korea Spatial Information Society, volume 6, issue 1, 1998, Pages 25~33
The study region encompasses about 5,900
including the topographic maps of Kimhae, Pusan, Miryang, Yangsan, Panguhjin, Tonggok, Uhnyang, Ulsan, Youngchon, Kyongju, Pulguksa, and Kampo, all at a scale of 1:50,000. The paper discusses how to have prepared the four thematic maps, landslide and unstable slope distribution map, slope classification amp, soil classification map, and lineament density map. Using all the above maps and GIS, the relative slope-stability map for the study regiun was produced at a scale of 1:100,000 ; the map can be utilized for the regional land-use planning in the study region.
Establishing the Development Priority of Undeveloped Urban Parks Using GIS
Journal of Korea Spatial Information Society, volume 6, issue 1, 1998, Pages 35~45
In order to support effective decision-makings related to greenery planning, this study construct a fundamental database about greenery information for Seoul metropolitan area using GIS and Remote Sensing. Greenery evaluation index consists of ecological/ environmental, utilization, social condition value which are used to determine the development priority of undevelopment parks. These indexes will also be utilized for the green area conservation classification for Seoul metropolitan area. This study is a part of previous project called "Management Policy of the Total Amout of Greenery", which was conducted in Seoul Development Institute.Institute.
Development of a New Address Management System and a New Address Information System Using Internet GIS
Journal of Korea Spatial Information Society, volume 6, issue 1, 1998, Pages 47~63
Internet GIS represents the GIS technique that, by integrating Internet and GIS technique, provides geographic information services through Internet environments, Internet GIS suggests that one can search and analyze spatial data through WWW under the dynamic client/ server computing environments, In this paper we introduce the development of a new address management system using GIS technique and a new address information system using Internet GIS, The new address system, which is based on stress name and building number along the street, is developed to complement the current address system which is based on cadastral system, The new address management system is developed for the management of address change due to establishment of roads, construction and destruction of buildings etc using a GIS, The new address information system presents the Internet GIS system which provides people with geographic and address information. By implementing the new address information system it is possible to share GIS data, increase the efficiency of implementation of GIS system, and maximize its usablity.
A Study on the Improvement of Accuracy in Mapping the Distribution of the Emission Volume of Air Pollution Using GIS
Journal of Korea Spatial Information Society, volume 6, issue 1, 1998, Pages 65~76
Air contaminant density must be inferred exactly to manage air pollution. Each land use of air pollution source is duplicated in the existing air contaminant distribution because the resolution of the land use map is low. The purpose of this study is to understand how the land use map is used to determine effectively in the distribution calculation of the emission volume and the inference of air contaminant density, as it is made in a high resolution. The major findings are as follows : In this study, as to making a high resolution(
) map of land use with GIS, each air pollution source is not duplicated spatially and land use can be reflected effectively. In Seoul, each air contaminant density was inferred (using a TCM-2 model) with the existing distribution map of emission volume, whose resolution is
, and the new distribution map of emission volume, whose resolution is
. According to the result, the inference value of the new distribution map was more similar to the actual value of an automatic survey network.
Development of Stochastic Model and Simulation for Spatial Process Using Remotely Sensed Data : Fire Arrival Process
Journal of Korea Spatial Information Society, volume 6, issue 1, 1998, Pages 77~90
The complex interactions of climate, topography, geology, biota and hwnan activities result in the land cover patterns, which are impacted by natural disturbances such as fire, earthquake and flood. Natural disturbances disrupt ecosystem communities and change the physical environment, thereby generating a new landscape. Community ecologists believe that disturbance is critical in determining how diverse ecological systems function. Fires were once a major agent of disturbance in the North American tall grass prairies, African savannas, and Australian bush. The major focus of this research was to develop stochastic model of spatial process of disturbance or spatial events and simulate the process based on the developed model and it was applied to the fire arrival process in the Great Victoria Desert of Australia, where wildfires generate a mosaic of patches of habitat at various stages of post-fire succession. For this research, Landsat Multi-Spectral Scanner(MSS) data covering the period from 1972 to 1994 were utilized. Fire arrival process is characterized as a spatial point pattern irregularly distributed within a region of space. Here, nonhomogeneous planar Poisson process is proposed as a model for the fire arrival process and rejection sampling thinning the homogeneous Poisson process is used for its simulation.
Estimation of Fish Species Diversity of Small and Medium Rivers of Korea with Fish Species-Habitat Relationship Models od GAP
Journal of Korea Spatial Information Society, volume 6, issue 1, 1998, Pages 91~102
The objectives of this research were to develop fish-habitat relationship models which can be used to estimate fish species riclmess of small and medium rivers in Korea, and test the accuracy of the models. The models are based on the Aquatic GAP Analysis model in the New York Cooperative Fish & Wildlife Research Unit (19%), and they employ three habitat factors; river size, physical habitat, and water quality of each river segment. Model 1 and model II are based on the water quality standard for life support of EP A and the water quality class of Korea, respectively. Test sites for this study include one urban stream and three less spoiled tributaries of the Han River. The results of this research can be summarized as follows. First, the number of habitat types identified by model I and model II are nine and 14, respectively. Second, the average accuracy of the three distribution maps of rare or endangered fish species are 80.6% (model 1) and 81.2% (model II). Third, the accuracy of fish species richness are 94% (model 1) and 95% (model II), and the water quality is the most important factor affecting fish species richness. Fourth, the accuracy of fish species list are 50.5% (model 1) and 68.7% (model II), but the accuracy of less spoiled stream segments and that of polluted stream segments are 67.1% and 86.5%, respectively. Finally, it can be concluded that the overall performance of model II is better than that of model I at our test sites.
A Study on Production and Digitalization of Thematic Maps
Journal of Korea Spatial Information Society, volume 6, issue 1, 1998, Pages 103~120
"The Plan for the Development of the National Geographic Information System" designates the following six major thematic maps as the main subject of digital mapping project: topographic-cadastral maps; administrative boundary maps; land use maps; road network maps; national land zoning maps; and urban planning maps. Carrying out the digital mapping project requires standards and guidelines for digitizing process. However, there is neither standards nor guidelines with regard to thematic map production. This study describes the steps involved in producing thematic maps and provides the best procedural alternative for the production of thematic maps. Based on procedural alternative suggested by this study, actual digital maps have been experimentally produced for the selected area, Anyang-Si Dongan-Gu. The results of this experimental work have been utilized to government for not only making the guidelines but also initiating plans for the development of thematic map production.roduction.