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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 5, Issue 4 - Dec 2002
Volume 5, Issue 3 - Sep 2002
Volume 5, Issue 2 - Jun 2002
Volume 5, Issue 1 - Mar 2002
Selecting the target year
New Landscape of Poverty Management in Land Information System
Liou, Jae-Ik ; Oh, Min-Soo ; Shin, Young-Chul ;
Journal of the Korean Association of Geographic Information Studies, volume 5, issue 1, 2002, Pages 1~19
Estimation and indication for spatial distribution of living quality and poor condition associated with land and house's access as a basic human need has been imperative questions and predicaments while it is required to boost digital economic development and consolidate social maturity. Although modern IT and sophisticated GIS/LIS technologies are used to examine spatial analysis of population location-patterns, land uses and development, and environmental degradation, etc, it still might remain immature step to figure out the causations and results of poverty in space and time. In this research, a new approach to poverty management is explicated by using 6 parameters as a major tool for assisting poverty monitoring concerning the poor who are very unpredictable in space and could be regarded as renegades in the Internet age. In addition, it expounds a new approach and conceptual idea for poverty management to notify spatial location of the digital divide when poverty reduction is closely concerned with sustainable goal of land information.
Characteristic Analysis of Forest Fire Burned Area using GIS
Lee, Si-Young ; Kang, Yong-Seok ; An, Sang-Hyun ; Oh, Jeong-Soo ;
Journal of the Korean Association of Geographic Information Studies, volume 5, issue 1, 2002, Pages 20~26
The forest fire occurrences and burned area are increasing every year since 1990 in Korea, of which 65% is covered by forest. This study attempts to analyze topographic characteristics of forest fire burned area using GIS, and we also applied the statistical analysis based on the fire characteristics such as weather, forest as fuels and topography in small and large forest fire burned areas. The result of the statistical analysis shows that the size of forest fire was related to the slope length, slope degree, wind speed, forest type, and forest continuity.
Estimation of Classification Accuracy of JERS-1 Satellite Imagery according to the Acquisition Method and Size of Training Reference Data
Ha, Sung-Ryong ; Kyoung, Chon-Ku ; Park, Sang-Young ; Park, Dae-Hee ;
Journal of the Korean Association of Geographic Information Studies, volume 5, issue 1, 2002, Pages 27~37
The classification accuracy of land cover has been considered as one of the major issues to estimate pollution loads generated from diffuse landuse patterns in a watershed. This research aimed to assess the effects of the acquisition methods and sampling size of training reference data on the classification accuracy of land cover using an imagery acquired by optical sensor(OPS) on JERS-1. Two kinds of data acquisition methods were considered to prepare training data. The first was to assign a certain land cover type to a specific pixel based on the researchers subjective discriminating capacity about current land use and the second was attributed to an aerial photograph incorporated with digital maps with GIS. Three different sizes of samples, 0.3%, 0.5%, and 1.0% of all pixels, were applied to examine the consistency of the classified land cover with the training data of corresponding pixels. Maximum likelihood scheme was applied to classify the land use patterns of JERS-1 imagery. Classification run applying an aerial photograph achieved 18 % higher consistency with the training data than the run applying the researchers subjective discriminating capacity. Regarding the sample size, it was proposed that the size of training area should be selected at least over 1% of all of the pixels in the study area in order to obtain the accuracy with 95% for JERS-1 satellite imagery on a typical small-to-medium-size urbanized area.
The Application of GIS for the Prediction of Landslide-Potential Areas
Lee, Jin-Duk ; Yeon, Sang-Ho ; Kim, Sung-Gil ; Lee, Ho-Chan ;
Journal of the Korean Association of Geographic Information Studies, volume 5, issue 1, 2002, Pages 38~47
This paper demonstrates a regional analysis of landslide occurrence potential by applying geographic information system to the Kumi City selected as a pilot study area. The estimate criteria related to natural and humane environmental factors which affect landslides were first established. A slope map and a aspect map were extracted from DEM, which was generated from the contour layers of digital topographic maps, and a NDVI vegetation map and a land cover map were obtained through satellite image processing. After the spatial database was constructed, indexes of landslide occurrence potential were computed and then a few landslide-potential areas were extracted by an overlay method. It was ascertained that there are high landslide-potential at areas of about 30% incline, aspects including either south or east at least, adjacent to water areas or pointed end of the water system, in or near fault zones, covered with medium vegetable. For more synthetic and accurate analysis, soil data, forest data, underground water level data, meteorological data and so on should be added to the spatial database.
An Application and Case Study on the Evaluation Method of River Naturalness using GIS - The special reference to Musim-cheon river in Cheongju City -
Park, Byeong-Cheol ; Shin, Young-Cheol ; Suh, Ae-Suk ;
Journal of the Korean Association of Geographic Information Studies, volume 5, issue 1, 2002, Pages 48~57
River plays an important role both to nature and people. Also considering the limitation of land and water resources coupled with the continuous urbanization and industrialization of Korea, the effective river management becomes more and more important. The evaluation units consisted of main 3 factors(13 detail factors) are classified 5 grade and 5 scores system. The survey area was divided and selected by 5 zones in Musim-cheon river. The final result of evaluation for 5 Zone is good near natural river following next order; 1 (4.07), 2 (3.56), 5 (3.4), 4 (3.1) and 3 Zone(2.6 score) On this condition, the main purpose of this study was to apply GIS(geographic information system) spatial analysis for evaluation method of river naturalness in order to promote the river management and the process of ecological restoration of river corridors.
Case Study of UML(Unified Modeling Language) Design for Web-based Forest Fire Hazard Index Presentation System
Jo, Myung-Hee ; Jo, Yun-Won ; Ahn, Seung-Seup ;
Journal of the Korean Association of Geographic Information Studies, volume 5, issue 1, 2002, Pages 58~68
Recently as recognition to prevent nature disasters is reaching the climax, the most important job of government official is to provide information related to the prevention of nature disasters through the Web and to bring notice to prevent disaster under people. Especially, if the case of daily forest fire hazard index is provided within visualization on Web, people may have more chances to understand about forest fire and less damages by large scale of forest fire. Forest fire hazard index presentation system developed in this paper presents daily forest fire hazard index on map visually also provides the information related to it in text format. In order to develop this system, CBDP(Component Based Development Process) is proposed in this paper. This development process tries to emphasize the view of reusability so that it has lifecycle which starts from requirement and domain analysis and finishes to component generation. Moreover, The concept of this development process tries to reflect component based method, which becomes hot issue in software field nowadays. In the future, the component developed in this paper may be possibly reused in other Web GIS application, which has similar function to it so that it may take less cost and time to develop other similar system.
Establishment of Automatic Response System for Disaster Prevention using GIS
Jung, Dae-Young ; Bang, Hee-Bong ; Shin, Young-Chul ;
Journal of the Korean Association of Geographic Information Studies, volume 5, issue 1, 2002, Pages 69~79
The more people and urban infrastructures are crowded in a society, the more possibilities of disasters are existed. Most of cities have a difficulty in coping with unpredictable disasters consisting of natural and human characteristics. As a proved before, theses disasters have serious effects on socio-economical, financial and physical damages, and human lives. Although we have prepared various types of disaster-protection programs, there are rooms to be desired in establishing advanced warning system towards safeguards of disasters. In this research, we propose semantic ideas of an advanced information system associated with automatic voicing mail linking to telephone. This conceptual model and its architecture is for not only predicting and analyzing disasters, but also recommending counter-measurements and solutions for risks and dangers in disastrous circumstances. However, there are little works with regard to definitions and conceptual models of automatic voicing mail system in the context of geographical information sciences. Therefore, this research focuses on scrutinizing the effect of possible natural vulnerability and human hazards in our present societies.