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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 19, Issue 2 - Jun 2016
Volume 19, Issue 1 - Mar 2016
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Development of Web-Based Supporting Tool (VESTAP) for Climate Change Vulnerability Assesment in Lower and Municipal-Level Local Governments
OH, Kwan-Young ; LEE, Moung-Jin ; HAN, Do-Eun ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 1~11
DOI : 10.11108/kagis.2016.19.1.001
Climate change is the issue that attracts the most attention in the field of environment, as well as the most challenging task faced by the human race. There are various ways to resolve this issue. South Korea has established the primary and secondary national climate change adaptation plans at the national level, and is making it compulsory for each local government (lower and municipal-level) to establish climate change adaptation plans. Climate change vulnerability assessment plays an essential role in establishing climate change adaptation action plans. However, vulnerability assessment has a difficulty performing individual assessments since the results are produced through complex calculations of multiple impact factors. Accordingly, this study developed a web-based supporting tool(VESTAP) for climate change vulnerability assesment that can be used by lower and municipal-level local governments. The VESTAP consists of impact DB and vulnerability assessment and display tool. The index DB includes total 455 impacts of future climate data simulated with RCP (Representative Concentration Pathways) 4.5 and 8.5, atmospheric environment data, other humanities and social statistics, and metadata. The display tool has maximized convenience by providing various analytical functions such as spatial distribution, bias and schematization of each vulnerability assessment result. A pilot test of health vulnerability assessment by particulate matters in Sejong Metropolitan Autonomous City was performed using the VESTAP, and Bukang-myeon showed the highest vulnerability. By using the developed tool, each local government is expected to be able to establish climate change adaptation action plans more easily and conveniently based on scientific evidence.
A Study on the Improvement of Evaluation Indicators for Adjusting Forestland Classification
KWAK, Doo-Ahn ; RYU, Keun-Won ; KWON, Soon-Duk ; KIM, Won-Kyung ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 12~29
DOI : 10.11108/kagis.2016.19.1.012
The purpose of this study was to improve forestland characteristic evaluation system's indicators for rational development and ecosystem conservation. There has been no consideration for statistical duplication between variables, and it caused inefficient data collection. Furthermore, the same evaluation criteria were applied for all forestlands without considering regionally different characteristics, and it made variation for designation cancel rates of preservation semi-preservation forestlands between cities. To solve these problems, we first removed 'DBH' variable which has a multicollinearity. Second, we applied standard normal distribution for each forest watershed type. As a result of eliminating 'DBH', the numbers of parcels for all grades except A were changed but their numbers and areas were not large enough to consider the change of total score. For the output of analyses with the existing same regional criteria, the total scores of urban type and urban-fringe type forestlands were higher than those of other types. The numbers of parcels for A and B were increased and those for C and E were decreased by applying standard normal distribution. This caused the increase of preservation-oriented parcels. Finally, we suggested a new evaluation method based on standard normal distribution to consider regional forest characteristics and to solve regional imbalance.
Analyzing Relationship between Satellite-Based Plant Phenology and Temperature
CHOI, Chul-Hyun ; JUNG, Sung-Gwan ; PARK, Kyung-Hun ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 30~42
DOI : 10.11108/kagis.2016.19.1.030
Climate change are known to have had enormous impacts on plant phenology and thus to have damage on other species which are interacted within ecosystem. In Korea, however, it is difficult to analyze the relationship between climate and phenology due to the limitation of measurement data of plant phenological records. In this study, to be effective analysis of SOG(start of growing season), we used phenological transition dates by using satellite data. Then, we identified the most influential variable in variation of SOG throughout the relationship between SOG and temperature factors. As a result, there is a strong correlation between the SOG and April temperature, TSOGmin(
, 12days). This study is expected to be used for predicting plant phenological change using climate change scenario data.
Analyzing the Changes of Spatial Structure and Officially Assessed Land Price by Using Space Syntax
CHO, Jung-Hun ; MOON, Tae-Heon ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 43~52
DOI : 10.11108/kagis.2016.19.1.043
Land price contains the comprehensive characteristics of urban space, representing the social and economic features of the city. Accordingly, land price can be utilized as an indicator, which can identify the changes of spatial structure and socioeconomic variations caused by urban development. This study attempted to explore the change in land price by the road construction. Methodologically, it adopted Space Syntax, which can interpret urban spatial structure comprehensively, to identify the relationship between the forms of road networks and land price. The analytical results show that the correlation between 'integration index of Space Syntax' with 'officially assessed land price' was the highest, and as integration was higher, 'officially assessed land price' increased. Subsequently, using regression equation, it tried to predict the land price changes of surrounding areas, according to the new road construction in case area. As shown above, the research methods or study results have the advantage of predicting the changes in land price that can attract high concern of residents in an easy way. In addition, it will contribute to establishing relevant polices and smoothing business promotion through the enhancing residents' understanding by suggesting the change in land price in advance before the execution of urban regeneration and development projects.
A Study on the Improvement of Performance Testing System of Domestic Surveying Equipment
MIN, Kwan-Sik ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 53~63
DOI : 10.11108/kagis.2016.19.1.053
In this paper, we proposed the improvements for performance test and surveying equipment regulations, standards, methods and procedures, depending on the need of improving the legal system for surveying equipment in a diverse and sophisticated surveying industry. This research was performed first investigating the existing legal systems(Act on the establishment and management of spatial data, Framework act on national standards, ISO 17123, JIS B 7912) with respect to the surveying equipment performance testing and the research for IOS and KOLAS suggested the improvements on the application for the surveying equipment performance testing standard. More exactly, first, two years were presented for the surveying equipment performance testing cycle considering the precise accuracy of the instrument stability, purpose and frequency of use, etc. Second, the abolition of the measurement distance by grade and the upward or cross-grade adjustment of the single prism standards about the light wave rangefinder and total station were suggested for the improvement on survey equipment performance criteria. Third, since the main function of total station is focused on a three-dimensional coordinate measurement due to the improvement of surveying equipment performance testing, it was proposed to use the precision(repeatability) of the coordinate measuring method as an evaluation method.
Evaluation of the Relationship between Meteorological, Agricultural and In-situ Big Data Droughts
LEE, Ji-Wan ; JANG, Sun-Sook ; AHN, So-Ra ; PARK, Ki-Wook ; KIM, Seong-Joon ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 64~79
DOI : 10.11108/kagis.2016.19.1.064
The purpose of this study is to find the relationship between precipitation deficit, SPI(standardized precipitation index)-12 month, agricultural reservoir water storage deficit and agricultural drought-related big data, and to evaluate the usefulness of agricultural risk management through big data. For the long term drought (from January 2014 to September 2015), each data was collected and analysed with monthly and Provincial base. The minimum SPI-12 and maximum reservoir water storage deficit compared to normal year were occurred at the same time of July 2014, and August and September 2015. The maximum frequency of big data was occurred at June and July of 2014, and March and June to September of 2015. The maximum big data was occurred 1 month advanced in 2014 and 2 months advanced in 2015 than the maximum reservoir water storage deficit. The occurrence of big data was sensitive to spring drought from March, late Jangma of June, dry Jangma of July and the rainfall deficit of September 2015. The big data was closely related with the meteorological drought and agricultural drought. Because the big data is the in situ feeling drought, it is proved as a useful indicator for agricultural risk management.
Parcel Boundary Demarcation in Agricultural Area Using High Resolution Aerial Images and Aerial Targets
PARK, Chi-Young ; LEE, Jae-One ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 80~93
DOI : 10.11108/kagis.2016.19.1.080
Parcel boundary demarcation in agricultural area is commonly performed by terrestrial surveying methods, which have been pointed out as drawbacks to require consuming too much time and heavy expenditure. With the developments of high performance digital aerial cameras, however, studies on cadastral boundary demarcation with an aerial photogrammetric method attract a great attention in recent years. In this paper, an approach is presented to rapidly demarcate parcel boundaries coinciding with real ground ones in agricultural areas by extracting boundaries from the high resolution aerial orthoimages based on aerial targets. In order to investigate the feasibility of the proposed method, the accuracy of coordinates and area of parcel boundaries extracted from the aerial targets appeared in orthoimages compared with that of terrestrial boundary surveying results over the selected two test agricultural areas. Aerial image data were processed taken by a ADS80 digital camera with a GSD of 8cm in Changwon region, and by a DMCII camera with a GSD of 5cm in Suwon respectively. The result shows that the accuracy of parcel demarcation using aerial images is within the tolerance limits of coordinates and areas compared with that of terrestrial surveying. The proposed method using aerial target-based high resolution aerial images is therefore expected to be usefully applied in the agricultural parcel demarcation.
Assessment of the Distributional Probability for Evergreen Broad-Leaved Forests(EBLFs) Using a Logistic Regression Model
YOO, Byung-Oh ; PARK, Joon-Hyung ; PARK, Yong-Bae ; JUNG, Su-Young ; LEE, Kwang-Soo ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 94~105
DOI : 10.11108/kagis.2016.19.1.094
This study was carried out to assess the distributional probability for Evergreen Broad-Leaved Forests(EBLFs) using the field data and digital climate data that were occurred during the period of 1980 to 2010. For the validation of logistic regression model, the probabilistic value ranged from 33 to 84%, especially the probabilistic value of growing distribution becomes lower patterns with higher altitude. In addition, it has been estimated that the probabilistic value of growing distribution is the highest with 63~83% among the regional units in temperate/warm-temperate forests.
A Study on the Watershed Analysis of the Expected Flood Inundation Area in South Han River
HONG, Sung-Soo ; JUNG, Da-Som ; HWANG, Eui-Ho ; CHAE, Hyo-Suk ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 106~119
DOI : 10.11108/kagis.2016.19.1.106
Flood risk map, flood damage map, disaster information map, inundation trace map are involved with the cartographic analysis of flood inundation based on prevention, preparation, restoration, response from natural disasters such as flood, flooding, etc. In this study, the analysis for channel and basin characteristics Chungju dam to Paldang dam of South han river after four river project. Flood scenario is selected to take advantage of design flood level of schematic design for river. Flood inundation of one dimensional non-uniform flow by using HEC-RAS with basin characteristics is accomplished and two dimensional unsteady flow was interpreted by using FLUMEN. Frequency analysis is carried out about each abundance of South han river for 100 year period, 200 year period and 500 year period. Flooding disaster area of 100 year period on 0.5m damage functions is 2378.8ha, 200 year period on 0.5m damage functions is 3155.2ha, 500 year period on 0.5m damage functions is 3995.3ha respectively. It will be significant data for decision making to establish inundation trace map for providing basic plan for river maintenance, land use plan, flood protection plan, application plan and getting information of flood expectation area.
An Integrated Assessment of Park-Type Green Space Considering Functional Characteristics in Daegu
LEE, Woo-Sung ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 120~140
DOI : 10.11108/kagis.2016.19.1.120
The purpose of this study is to assess the green space considering functional characteristics in order to provide the base data for efficient green planning and management. The study area was the park-type green spaces in Daegu and the functions were limited in nature-ecological, environment-control, and usage functions. Thirteen indicators were selected from the literature review and MCB analysis of expert survey. The weightings of functional indicators were established through AHP analysis of expert survey. According to the results of functional assessment, Naengcheon amusement, Deagu sports, and Dalchang amusement parks had scores of more than 80 in the case of nature-ecological function. Fifteen parks such as Bokhyeon, Manchon, and Cheonnae parks had scores of more than 75 in terms of environment-control function and eleven parks such as Suseong, Dalseong, and Wolbae parks had scores of more than 80 in usage function. The findings from this study can be used as the base data and guideline for construction of new park-type green space and continuous management and remodeling of current green space.
A Plan to Provide Effective Risk Map Information by Linking a 3D Disaster Information Display System with an On-site Assistance Application
KIM, Do-Ryeong ; GANG, Su-Myung ; RYU, Dong-Ha ; PARK, Ju-Sung ; JO, Myung-Hee ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 141~153
DOI : 10.11108/kagis.2016.19.1.141
The increase in frequency and scale of natural disasters is the typical negative examples of the global climate change and the change of the human living environment in cities. The damage caused by natural disasters in particular including human and physical damage is directly linked to the safety and properties of citizens. Besides, the damage may occur to SOC facilities directly or indirectly. The SOC facilities damaged by disasters cause infringement of citizens safety rights. Therefore, a plan to provide prompt and effective risk map information by linking a 3D disaster information display system, which handles the information of the damage that may occur to SOC facilities such as bridges, beams, and dams at the time of disasters, with an on-site assistance application is suggested in this study. The prompt provision of risk map information is defined as a dynamic expression technology in this study. Also, disaster information is processed and compressed with a module developed to be linked organically to a system that displays disaster information, a proliferation system that can use the information on site, and a DB system that constructs a relationship with the information. Based on the module, the effective disaster information compression plan will be prepared, and the prompt information transmission system will be secured in the future.
A Study on the Effects of Airborne LiDAR Data-Based DEM-Generating Techniques on the Quality of the Final Products for Forest Areas - Focusing on GroundFilter and GridsurfaceCreate in FUSION Software -
PARK, Joo-Won ; CHOI, Hyung-Tae ; CHO, Seung-Wan ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 154~166
DOI : 10.11108/kagis.2016.19.1.154
This study aims to contribute to better understanding the effects of the changes in the parameter values of GroundFilter algorithm(GF), which performs filtering process, and of GridsurfaceCreate algorithm(GC), which creates regular grid, provided in Fusion software on the accuracy of elevation of the final LiDAR-DEM products through comparative analysis. In order to test whether there are significant effects on the accuracy of the final LiDAR-DEM products due to the changes of GF(1, 3, 5, 7, 9) parameter levels and GC(1, 3, 5, 7, 9) parameter levels, two-way ANOVA is conducted based on residuals. The residuals are calculated using the differences between each sample plot's paired field-measured and DEM-derived elevation values given each individual GF and GC level. After that, Tukey HSD test is conducted as a post hoc test for grouping the levels. As a result of two-way ANOVA test, it is found that the change in the GF levels significantly affects the accuracy of LiDAR-DEM elevations(F-value : 27.340, p < 0.01), while the change in the GC levels does not significantly affect the accuracy of LiDAR-DEM elevations(F-value : 0.457). It is also found that the interaction effect between GF and GC levels is not likely to exist(F-value : 0.247). From the results of the Tukey HSD test in the GF levels, GF levels can be divided into two groups('7', '5', '9', '3' vs '1') by the differences of means of residuals. Given the current conditions, LiDAR-DEM can achieve the best accuracy when the level '7' and '3' are given as GF and GC level, respectively.
Development Plan of Facility Importance, Risk, and Damage Estimation Inventory Construction for Assisting Disaster Response Decision-Making
CHOI, Soo-Young ; GANG, Su-Myung ; JO, Yun-Won ; OH, Eun-Ho ; PARK, Jae-Woo ; KIM, Gil-Ho ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 167~179
DOI : 10.11108/kagis.2016.19.1.167
The safety of SOC facilities is constantly under threat by the globally increasing abnormal climate. Responding to disasters requires prompt decision-making such as suggesting evacuation paths. For doing so, spatio-temporal information with convergence of disaster information and SOC facility information must be utilized. Such information is being collected separately by the government or related organizations, but not collectively. The collective control of the separately collected disaster information and the generation of SOC facility safety and damage information are required for prompt disaster response. Also, as disaster information requires spatio-temporal convergence in its nature, the construction of an inventory that integrates related information and assists disaster response decision-making is required. A plan to construct a facility importance, risk, and damage estimation inventory for assisting prompt disaster response decision-making is suggested in this study. Through this study, the disaster and SOC facility-related data, which are being managed separately, can be collected and standardized. The integrated information required for the estimation of facility importance, risk, and damage can be provided. The suggested system is expected to be used as a decision-making tool for proactive disaster response.
A Plan for a Prompt Disaster Response System Using a 3D Disaster Management System Based on High-Capacity Geographic and Disaster Information
GANG, Su-Myung ; KIM, Do-Ryeong ; CHOUNG, Yun-Jae ; PARK, Ju-Sung ; KIM, Jin-Man ; JO, Myung-Hee ;
Journal of the Korean Association of Geographic Information Studies, volume 19, issue 1, 2016, Pages 180~196
DOI : 10.11108/kagis.2016.19.1.180
To minimize the damage from disasters, various aspects of prevention, preparation, and response, etc. are being managed. Even though prevention and preparation are well conducted, irresistible calamities such as natural disasters may cause unexpected damage. Therefore, a system that can share the identical disaster information based on prompt disaster management and prediction must be developed and constructed for integrated disaster management. Especially, for a prompt disaster response, the same information needs to be shared between the related organization and the disaster prevention personnel such as on-site officials. Recent disaster management systems use high-capacity geographic information or other various factors for accurate disaster predictions. In case of using a recently constructed or researched 3D GIS, the system may not be used in some cases due to conflicts with hardware, etc. Thus, even though response information is secured using prediction simulation in advance, it is essentially difficult in some cases to share the common information when the system cannot be utilized or the extension of the corresponding data cannot be read. Therefore, this study aims to construct a system for dealing with disasters that shares the same prompt and accurate information in compliance with common data formats. The system is expected to reduce the existing disaster response time and minimize human and physical damage by assisting decision making through prompt responses.