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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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Journal DOI :
The Korean Association of Geographic Information Studies
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Volume & Issues
Volume 16, Issue 4 - Dec 2013
Volume 16, Issue 3 - Sep 2013
Volume 16, Issue 2 - Jun 2013
Volume 16, Issue 1 - Mar 2013
Selecting the target year
A Study on the Classification of the Spatial Characteristics by TOD Planning Elements of Subway Station Areas in Seoul
Choi, Hyoung-Sun ; Kim, Tae-Ho ; Lee, Joo-Hyung ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 1~15
DOI : 10.11108/kagis.2013.16.2.001
It is important to empirically investigate the typological characteristics of subway station areas considering the comprehensive elements of transit-oriented development (TOD) planning so that its implementation can be effective in attaining both increase in transit ridership and decrease in inordinate automobile dependence. This article aims to identify diverse features of subway station areas in Seoul known for good public transit system. After collecting and manipulating the measures on planning elements such as density, diversity and accessibility for TOD planning by distance-based buffer from a subway station, the article tried to interpret analysis results on their typological characteristics. They can be summarized with two conclusions. First, characteristics of landuse and public transit system can be distinctly differentiated in the Seoul subway station areas. It implies that both planning elements should have not been integrated for now. Second, the characteristics of public transit system can be divided by modes. They provide us that public transit system in Seoul needs to be more strongly integrated than current system.
Air Ventilation Evaluation at Nighttime for the Construction of Wind Corridor in Urban Area
Song, Bong-Geun ; Park, Kyung-Hun ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 16~29
DOI : 10.11108/kagis.2013.16.2.016
The purpose of this study is to evaluate air ventilation using wind patterns of MetPhoMod program at nighttime focused on Changwon-si, Gyeongsangnam-do. Evaluation indices of air ventilation are wind resistant and retention used by results of each wind speed and diversity. The results are as follows. Vulnerable areas of air ventilation are Bonglim-dong, Bansong-dong, Yongji-dong and so on. In high-rise apartment, commercial area and single residential area of Yongji-dong, Sangnam-dong and Sapa-dong, wind is stagnated by high buildings. Therefore, these areas should construct urban spaces to circulate the wind. And to inflow persistingly the fresh wind generated in a rural area, we think that the construction of wind corridor is suggested by development plan and policy wind corridor.
Developing Analytical Model for Locating Preferred Ecovillage Sites Using GIS - The Case Study of Bukgu, Pohang
Kim, Doo-Soon ; Jung, Seon-A ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 30~46
DOI : 10.11108/kagis.2013.16.2.030
Using ArcGIS Model Builder, with emphasis on the importance of ecology and user friendliness, a model for site selecting tool is developed. This tool is developed by establishing standardized method for data selection and analysis with evaluation criteria using GIS. For this task, our first action was to objectively define and establish 18 elements to evaluate the potentiality of the site based on extensive literature reviews. These 18 elements reflect environmental, social/cultural and legal aspects that may influence the decision process to select the desired site. Secondly, using ArcGIS Model Builder, 18 analytical elements were made into thematic mapping which represent systematically organized graphic input to the model with automatic double check system and overlay analysis capability. Thirdly, to validate the effectiveness of the developed model, site location analysis was performed using the actual site, Buk-ku, Pohang.
Land Use Changes and Climate Patterns in Southeast Korea
Park, Sun-Yurp ; Tak, Han-Myeong ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 47~64
DOI : 10.11108/kagis.2013.16.2.047
Landscape structure changes over the past three decades were determined with land use and land cover(LULC) maps, and their relationships with mean air temperature time series were the analyzed for the Busan metropolitan area and South Kyeongsang Province, Korea. The geometric structures of the LULC data were quantitatively represented based on FRAGSTATS, a spatial pattern analysis program for quantifying landscape structure. FRAGSTATS-derived landscape metrics confirmed that there were major changes in LULC and landscape fragmentation in the region. Meteorological observation records showed that mean air temperature had increased from
in the 1990's to
in the 2000's in Busan. For South Kyeongsang Province, they increased from
during the same time period. These long-term temperature changes are correlated with typical spatial pattern changes of LULC in the southeastern region of the country. Spatial metrics analysis showed that urban area expanded from 9.7% to 26.8% of Busan while forest and agricultural land decreased by 9.6% and 14.9%, respectively over the past thirty years. The significant urbanization are tightly associated with deforestation, removal of agricultural land, and fast temperature increases since the 1990's. The urban area of South Kyeongsang Province rapidly increased, and it became 12 times as large as it was. The degree of temperature increases differed among three different sub-regions. The temperature increasing rate was lowest in the coastal region while the colder mountainous region had the highest figure.
Home Range Size and Habitat Environment Related to the Parturition of Roe Deer at Warm-Temperate Forest in Jeju Island Using GPS-CDMA Based Wildlife Tracking System
Kim, Eun-Mi ; Kwon, Jin-O ; Kang, Chang-Wan ; Song, Kuk-Man ; Min, Dong-Won ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 65~74
DOI : 10.11108/kagis.2013.16.2.065
A research program for the roe deer (Capreolus pygargus) has been set up at the Jeju Experimental Forest of Warm-temperate and Subtropical Forest Research Center in Jeju Island. To explore the home range size and habitat environment, 3 males and 3 females have been captured and released with GPS-CDMA based telemetry since 24th April 2012. Among them 2 females were captured at Hannam Forest of Seoguipo, were pregnant and monitored by the tracking system. There are significantly different patterns in behavior around the parturition. After parturition they show recurrence behavior toward one point in the forest, while they have irregular patterns in moving before. To calculate the home range size, the MCP (minimum convex polygon) and Kernel Method are applied through the extension of ESRI ArcView GIS 3.2a. The pregnant female captured 9th May 2012 has the size of MCP=67ha and Kernel 95%=0.5ha and the pregnant female captured 12th July 2012 has the size of MCP=82ha and Kernel 95%=0.9ha. Although a fawn could move immediately just after the birth likely others to avoid any risks, they stay at very narrow space significantly, and the size become wider when more time goes by. Furthermore, they mainly have a home range away from human activity area such as forest tracking roads. The habitat environment for the parturition is summarized as 40years old cryptomeria forests with new sprouting shrubs for foods, which are the controlled forest through the thinning and removing shrubs 2 years ago. This means that forest works could cause positive results for the parturition and survival of young. The period of parturition is earlier than highland in Jeju Island, the size of home range is narrower than other countries, and the habitat environment of the shelter for a fawn is similar to previous research in other countries.
GIS-Based Suitability Assessment Plan of Coastal Zoning System
Lee, Geun-Sang ; Lim, Seung-Hyeon ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 75~87
DOI : 10.11108/kagis.2013.16.2.075
This study developed a GIS-based suitability assessment model of coastal zoning system that is needed in the substantial classification of coastal zoning system according to the establishment of law about coastal zoning system. First, this study investigated several kinds of regulations, GIS database and application system related coastal area. Also, grid data model was selected as the GIS analytical model for calculating items of suitability assessment of coastal zoning system. And Grid-based analytical method was suggested for calculating items composing of sea and spatial location characteristics including physical one. Critical values of items were presented using standards that were suggested in coastal regulations and land suitability assessment. Especially, this study presented a calculation method of continuous pattern as fuzzy set function for reflecting the characteristics of GIS data. And this study classified the suitability grade using Z-score and developed model designating coastal zone as conservation management priority, utilization management priority, and planning management priority. This study is judged that very efficient business performance is possible if we consider the spatial coverage of study area and GIS database when the suitability assessment model of coastal zoning system that is suggested in this study, is applied to business works.
Detection of Small Green Space in an Urban Area Using Airborne Hyperspectral Imagery and Spectral Angle Mapper
Kim, Tae-Woo ; Choi, Don-Jeong ; We, Gwang-Jae ; Suh, Yong-Cheol ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 88~100
DOI : 10.11108/kagis.2013.16.2.088
Urban green space is one of most important aspects of urban infrastructure for improving the quality of life of city dwellers as it reduces the heat island effect and is used for recreation and relaxation. However, no systematic management of urban green space has been introduced in Korea as past practices focused on efficient development. A way to calculate the amount of green space needed to complement an urban area must be developed to preserve urban green space and to determine 'regulations determining the total amount of greenery'. In recent years, various studies have quantified urban green space and infrastructure using remotely sensed data. However, it is difficult to detect a myriad small green spaces in a city effectively when considering the spatial resolution of the data used in existing research. In this paper, we quantified small urban green spaces using CASI-1500 hyperspectral imagery. We calculated MCARI, a vegetation index for hyperspectral imagery, to evaluate the greenness of small green spaces. In addition, we applied image-classification methods, including the ISODATA algorithm and Spectral Angle Mapper, to detect small green spaces using supervised and unsupervised classifications. This could be used to categorize land-cover into four classes: unclassified, impervious, suspected green, and vegetation green.
Application of GIS to Select Viewpoints for Landscape Analysis
Kang, Tae-Hyun ; Leem, Youn-Taik ; Lee, Sang-Ho ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 101~113
DOI : 10.11108/kagis.2013.16.2.101
The concern on environmental quality makes the landscape analysis more important than before ever. For the landscape analysis, selection of viewpoint is one of most important stage. Because of its subjectiveness, the conventional viewpoint selection method often missed some viewpoints of importance. The purpose of this study is to develop a viewpoint selection method for landscape analysis using GIS data and techniques. During the viewpoint selection process, spatial and attribute data from several GIS systems were hired. Query and overlay methods were mainly adapted for analysis to find out meaningful viewpoints. The 3D simulation analysis on DEM(Digital Elevation Model) was used for every selected viewpoint to examine wether the view target is screened out or not. Application study at a sample site showed some omissions of good viewpoints without any screening. It also exhibited the possibility to reduce time and cost for the viewpoint selection process of landscape analysis. For the progress of applicability, GIS data analysis process have to be improved and more modules such as automatic screening analysis system on selected viewpoint have to be developed.
A Prediction and Analysis for Functional Change of Ecosystem in South Korea
Kim, Jin-Soo ; Park, So-Young ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 114~128
DOI : 10.11108/kagis.2013.16.2.114
Rapid industrialization and economic growth have led to serious problems including reduced open space, environmental degradation, traffic congestion, and urban sprawl. These problems have been exacerbated by the absence of effective conservation and governance, and have resulted in various social conflicts. In response to these challenges, many scholar and government hope to achieve sustainable development through the establishment and management of environment-friendly planning. For this purpose, we would like to analyze functional change for ecosystem by future land-use/cover changes in South Korea. Toward this goal, we predicted land-use/cover changes from 2010 to 2060 using the future population of Statistics Korea and urban growth probability map created by logistic regression analysis and analyzed ecosystem service value using costanza's coefficient. In the case of scenario 1, ecosystem service value represented 6,783~7,092 million USD. In the case of scenario 2, ecosystem represented 6,775~7,089 million USD, 2.9~7.6 million USD decreased compared by scenario 1. This was the result of area reduction for farmland and wetland which have high environmental value relatively according to urban growth by development point of view. The results of this analysis indicate that environmentally sustainable systems and urban development must be applied to achieve sustainable development and environmental protection. Quantitative analysis of environmental values in accordance with environmental policy can help inform the decisions of policy makers and urban developers. Furthermore, forecasting urban growth based on future demand will provide more precise predictive analysis.
A Comparative Review on Building Height Regulations Using GIS Simulation
Kim, Ho-Yong ; Yun, Jeong-Mi ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 129~140
DOI : 10.11108/kagis.2013.16.2.129
This study reviewed different results according to the selection of viewpoints and considerations of the neighborhood in the analysis of view to regulate the height of buildings. To do this, 4 cases were set according to the analytical methodology and a GIS simulation was performed. Characteristics of each methodology were compared and analyzed by simulated values with ANOVA(analysis of variance) and post-hoc analysis. First, the method using moving viewpoints was found to be appropriate for the regulation of building height as it could reflect basic characteristics of landscape which was sequential and it did not show big difference in analysis result according to situational setting. Second, the method using grid viewpoints showed a problem that viewpoints at left and right sides viewed ridges of other mountains than the background mountains of the target land. Additionally, the simulation method that induces three-dimensional cross-sections between multiple sight-surface and virtual construction points created at viewpoints used in this study was found to be useful in the simulation review with various settings as it induced the marginal height of the spot quantitatively.
Estimation of Aerosol Vertical Profile from the MODIS Aerosol Optical Thickness and Surface Visibility Data
Lee, Kwon-Ho ;
Journal of the Korean Association of Geographic Information Studies, volume 16, issue 2, 2013, Pages 141~151
DOI : 10.11108/kagis.2013.16.2.141
This study presents a modeling of aerosol extinction vertical profiles in Korea by using the Moderate Resolution Imaging Spectro-radiometer(MODIS) derived aerosol optical thickness(AOT) and ground based visibility observation data. The method uses a series of physical equations for the derivation of aerosol scale height and vertical profiles from MODIS AOT and surface visibility data. The modelled results under the standard atmospheric condition showed small differences with the standard aerosol vertical profile used in the radiative transfer model. Model derived aerosol scale heights for two cases of clean(
) and hazy atmosphere(
. Based on these results, aerosol extinction profiles can be estimated and the results are transformed into the KML code for visualization of dataset. This has implications for atmospheric environmental monitoring and environmental policies for the future.