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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 6, Issue 4 - Dec 2003
Volume 6, Issue 3 - Sep 2003
Volume 6, Issue 2 - Jun 2003
Volume 6, Issue 1 - Mar 2003
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Flood Runoff Analysis using TOPMODEL Linked with Muskingum Method - Anseong-cheon Watershed -
Kwon, Hyung-Joong ; Kim, Seong-Joon ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 1~11
In this study, TOPMODEL(TOPography based hydrologic MODEL) was tested linked with Muskingum river routing technique for
Anseong-cheon watershed. Linear trend surface interpolation was used to give flow direction for flat areas located in downstream watershed. MDF (multiple flow direction) algorithm was adopted to derive the distribution of ln(a/
) values of the model. Because the coarser DEM resolution, the greater information loss, the watershed was divided into subwaterhseds to keep DEM resolution, and the simulation result of the upstream watershed was transferred to downstream watershed by Muskingum techniques. Relative error of the simulated result by 500 m DEM resolution showed 27.2 %. On the other hand, the relative error of the simulated result of 300 m DEM resolution by linked 2 subwatersheds with Muskingum method showed 15.8 %.
Design and Implementation of Forest Fire Prediction System using Generalization-based Classification Method
Kim, Sang-Ho ; Kim, Dea-Jin ; Ryu, Keun-Ho ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 12~23
The expansion of internet and the development of communication technology have brought about an explosive increasement of data. Further progress has led to the increasing demand for efficient and effective data analysis tools. According to this demand, data mining techniques have been developed to find out knowledge from a huge amounts of raw data. This paper suggests a generalization based classification method which explores rules from real world data appearing repeatedly. Also, it analyzed the relation between weather data and forest fire, and efficiently predicted through it as a prediction model by applying the suggested generalization based classification method to forest fire data. Additionally, the proposed method can be utilized variously in the important field of real life like the analysis and prediction on natural disaster occurring repeatedly, the prediction of energy demand and so forth.
Flood Runoff Analysis of Small River Basin using Geographic Information System
Lee, Yeon-Kil ; Park, Sung-Chun ; Lee, Kwan-Soo ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 24~36
Many rainfall-runoff model, which is applied discharge calculation for effective water-resource planning and management needs topographic and parameter of basin character. But it is very difficult to apply real a phase. Accordingly in this study filling up these problems. Applying GIS(geographic information system) through environment creating input data or concerning with GIS and rainfall runoff model. We built environment that analyze hydrograph showing discharge variation by time. GIS software for constructing input data is used by ArcView. For analysis of hydrograph in Basin, TOPMODEL applied topographic index. Besides for estimate of appliance to rainfall-runoff model, simple storm event and complex storm event are applied rainfall data which was before.
Implementing User Interface of Looms Management with Spatial Aggregate Query Functions
Jeon, Il-Soo ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 37~47
In this paper, a component was designed for a loom in a window, and then a user interface was implemented to be able to connect database and to process various queries. The implemented system has aggregate query processing functions for the loom components existing in the selected area by the mouse and it also supports high level query processing functions represented with chart and pivot table; we can use it as a decision support system. The proposed system can detect temporal or persistent problems in the looms. Therefore, it can be used to raise the productivity and to reduce the cost in textile companies by coping with the situation properly.
Constructing the Forest Fire Extinguishment Helicopter Management System by Integrating GPS and GIS
Jo, Myung-Hee ; Kim, Joon-Bum ; Jo, Yun-Won ; Shin, Dong-Ho ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 48~58
Recently in order to extinguish the large scale of forest fire efficiently and rapidly the forest fire extinguishment equipment such as helicopters and vehicles has been mobilized. In this situation, the most consideration for the effective extinguishment is to understand the forest fire surrounding area and situation very well and arrange and manage the extinguishment equipment timely. In this paper, the client/serve-based forest fire extinguishment helicopter management system was constructed by integrating GPS(global positioning system) and GIS(geographic information system) technologies. This system manages and considers not only extinguishment equipment information such as helicopters and vehicles including manpower arrangement but also extinguishment environment information such as storing reservoir status and road situation and so on. For this, the real time tracking of helicopter location was first acquired through GPS technology then all the information about forest fire surrounding area was offered through the user-friendly interface of GIS concept. The result of constructing this system helps to extinguish a large scale of forest fire rapidly and effectively within shorter time then reduces physical damage and much manpower mobilization.
A Study on the Land Suitability Analysis Based on Site Selection Variables using Macro Language
Yi, Gi-Chul ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 59~77
This study is to validate the use of macro language for the land suitability analysis aiming to help to resolve land use conflicts. The silver-town suitability analysis is conducted on the Geejang Gun, Busan Metropolitan city. Such digital maps as terrain, road, facility, and water body were created for various cartographic models. A cartographic model identified the best suitable areas for silver-town development based on the such site selection variables as a distance to facility and road, slope and aspect of terrain, land use etc. Then, the other cartographic model identified the most favorable site among the candidate sites based on the comparison of the aspect of proximity, usage and environmental quality. Macro language was used for these modeling process and was used for the manipulation of all these spatial variables used in the models to resolve land use conflicts relating to the decision making process of the final site selection. This study will improve the effectiveness and rationality of the traditional site suitability analysis.
Landscape Scale Ecosystem Evaluation for Sustainable Landuse Planning
Hwang, Kook-Woong ; Park, So-Yoon ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 78~84
The purpose of this study is to evaluate the ecosystem soundness in landscape scale using landscape indices, and to extract regional information that can be used for sustainable landuse planning. About BongWha-gun, the landcover classification using Landsat TM images and patch analysis ware carried out, and some landscape indices were calculated using geographic information system(GIS) and patch analyst program. As the results of this study, Seokpo, Jaesan and Sochun got higher scores in landscape indices related to the ecosystem soundness. But, Bonghwa-eup got lowest scores in the 10 regions. When compared with normalized difference vegetation index(NDVI), this result showed consistency to some degree. Although, there needs more supplementary studies, it is anticipated that landscape scale ecosystem evaluation using landscape indices can gives us some informations related to sustainable landuse planning.
Application of GIS for Selection of Logging Operation Machine
Jeon, Kwon-Seok ; Ma, Ho-Seop ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 85~97
This study was aimed at suggest a proper logging method of mountain forest using geographic information system(GIS) based on digital terrain model(DTM) in the National Forest at Mt. Kumsan in Namhae-gun, Gyungsangnam-do, which has about 2,948 ha in area. The areal percentage of 201 to 250m in the elevation was about 15.5%, elevation of 251 to 300m was 14.5%, and 78.75% for higher than 400m. The accumulated areal percentage of below 30% in the gradient was 17.2%, and 81.0% for steeper than 60%. The area for tractor skidding was 17.2%(511.7ha), the area for tractor attached winch skidding was 63.8%(1,896.3ha) and 18.4%(545.5ha) for cable yarding. It is important to choose the proper logging machines for timber harvesting. In general, the selection of logging operation system was affected several major environmental factors like as terrain conditions(slope gradient, slope length) and stand factors. The rate of middle slope gradients in terrain conditions showed higher than that of steep slope gradients in this area. Therefore, it considered that the logging operation system in this area could apply to tractor+winch operating machine according to terrain conditions.
Establishment of Geometric Correction Data using LANDSAT Satellite Images over the Korean Peninsular
Yoon, Geun-Won ; Park, Jeong-Ho ; Chae, Gee-Ju ; Park, Jong-Hyun ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 98~106
Because satellite images have the advantage of high resolution, multi-spectral, revisit and wide swath characteristics, it is increased to utilize satellite image and get information little by little in nowadays. In order to utilize remote sensed images effectively, it is necessary to process satellite images through many processing steps. Among them, geometric correction is essential step for satellite image processing. In this study, we constructed geometric correction data using LANDSAT satellite images. First, we extracted GCPs from maps and constructed database over the Korean peninsular. Second, LANDSAT satellite images, 165 scenes were corrected geometrically using GCP database. Finally, we made 7 mosaic images by means of geometric correction images over Korean peninsular. We think that constructed geometric correction data will be used for many application fields as basic data.
Assessment of Hydrological Impact by Long-Term Land Cover Change using WMS HEC-1 Model in Gyeongan-cheon Watershed
Lee, Jun-Woo ; Kwon, Hyung-Joong ; Shin, Sha-Chul ; Kim, Seong-Joon ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 107~118
The purpose of this study is to assess the hydrological impact on a watershed from long-term land cover changes. Gyeongan-cheon watershed(
) was selected and WMS(watershed modeling system) HEC-1 model was adopted as an evaluation tool. To identify land cover changes, five Landsat images(1980/2/15, 1986/4/15, 1990/4/26, 1996/4/26, 2000/5/17) were selected and analyzed using maximum likelihood method. As a result, urban areas have increased by 5.6% and forest areas have decreased by 6.1% between 1980 and 2000. SCS curve number increased by 9.8. To determine model parameters and evaluate HEC-1 model, five storm events(1998/5/2, 1998/8/23, 1998/9/30, 1999/5/3, 2000/7/29) were used. The simulated stream flow agreed well with the observed one with relative errors ranging from 9% to 36%. For 254 mm daily rainfall of 30 years frequency, due to the increase of urban areas peak flow increased by
and the time of peak flow reduced about four hours for 20 years land cover changes.
Frequency Runoff Analysis by Storm Type using GIS and NRCS Method
Yeon, Gyu-Bang ; Jung, Seung-Kwon ; Kim, Joo-Hun ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 119~131
Rainfall-runoff process is under the control of hydrologic parameters having temporal and spatial variety. Accordingly, it is difficult to efficiently deal them since many parameters and various information are required to perform hydrologic simulation. So the purposes of this study is to estimate the runoff volume by frequency using GIS techniques and NRCS method. The analysis of frequency rainfall is analyzed using FARD 2002 program and the result of goodness of fit test show that Log-pearson type III is suitable distribute type for the applied area. TOPAZ program used for the analysis of DEM data examining into geological characteristic. NRCS curve numbers estimated using landuse map and soil map for the estimation of effective rain fall in the basin. The storm Type II and Type III were used as the type for the application of NRCS. The result of application show that the runoff volumes above 80 years frequency in return period have similar patterns regardless of Type II and Type III. In addition, the results of comparison with runoff volumes by frequency in the report of river improvement master plan show that it have similar volumes as the relative errors for them of 80, 100 years frequency are each 7.65%, 5.33%.
Analysis of Flood Inundation using GIS
Shim, Soon-Bo ; Kim, Joo-Hun ; Lim, Gwang-Seop ; Oh, Deuk-Keun ;
Journal of the Korean Association of Geographic Information Studies, volume 6, issue 1, 2003, Pages 132~142
A significant deficiency of most computer models used for stream floodplain analysis, is that the locations of structures impacted by flood waters, such as roads, buildings, and bridges, cannot be effectively compared to the floodplain location. The purpose of this study is the integration of the HEC River Analysis System(HEC-RAS) with ArcView geographic information system to develop a regional model for floodplain determination and representation. Also this study presents to enable two- and three-dimensional floodplain mapping and analysis in the ArcView. The methodology is applied to a Yeoju of Kyunggi-do, located in South Han River Basin. A digital terrain model is synthesized from HEC-RAS cross-sectional data and a digital elevation model of the study area. The flood plain data developed in ArcView was imported into HEC-RAS where it was combined with the field surveyed channel data in order to construct full floodplain cross sections that reflected accurate channel and overbank data for the HEC-RAS model. The flood plain limits could be expressed more accurately on ArcView by using water level data to be computed in HEC-RAS program. The computed water surface elevations and information of cross-section must be manually plotted in order to delineate floodplains. The resulting of this study provided a good representation of the general landscape and contained additional detail within the stream channel. Overall, the results of the study indicate that GIS combined with HEC-RAS is proven to be very useful and efficient for the automatic generation of flood maps, and an effective environment for floodplain mapping and analysis.