Go to the main menu
Skip to content
Go to bottom
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 20, Issue 6 - Dec 2012
Volume 20, Issue 5 - Oct 2012
Volume 20, Issue 4 - Aug 2012
Volume 20, Issue 3 - Jun 2012
Volume 20, Issue 2 - Apr 2012
Volume 20, Issue 1 - Feb 2012
Selecting the target year
Spatial Analysis of the Urban Heat Island Using a 3-D City Model
Chun, Bum-Seok ; Guldmann, Jean-Michel ;
Journal of Korea Spatial Information Society, volume 20, issue 4, 2012, Pages 1~16
DOI : 10.12672/ksis.2012.20.4.001
There is no doubt that the urban heat island (UHI) is a mounting problem in built-up environments, due to energy retention by the surface materials of dense buildings, leading to increased temperatures, air pollution, and energy consumption. To investigate the UHI, three-dimensional (3-D) information is necessary to analyze complex sites, including dense building clusters. In this research, 3-D building geometry information is combined with two-dimensional (2-D) urban surface information to examine the relationship between urban characteristics and temperature. In addition, this research introduces spatial regression models to account for the spatial spillover effects of urban temperatures, and includes the following steps: (a) estimating urban temperatures, (b) developing a 3-D city model, (c) generating urban parameters, and (d) conducting statistical analyses using both Ordinary Least-Squares (OLS) and Spatial Regression Models. The results demonstrate that 3-D urban characteristics greatly affect temperatures and that neighborhood effects are critical in explaining temperature variations. Finally, the implications of the results are discussed, providing guidelines for policies to reduce the UHI.
Prediction of Spatial Distribution Trends of Heavy Metals in Abandoned Gangwon Mine Site by Geostatistical Technique
Kim, Su-Na ; Lee, Woo-Kyun ; Kim, Jeong-Gyu ; Shin, Key-Il ; Kwon, Tae-Hyub ; Hyun, Seung-Hun ; Yang, Jae-E ;
Journal of Korea Spatial Information Society, volume 20, issue 4, 2012, Pages 17~27
DOI : 10.12672/ksis.2012.20.4.017
This study was performed to evaluate the spatial distribution of heavy metals using principal component analysis and Ordinary Kriging technique in the Gangwon Mine site. In the soils from the sub soil, the contents of Zn and Ni in the PC1 were gradually dispersed from south to north direction, while the components of Cd and Hg in the PC2 showed an increase significantly from middle-south area in the Gangwon Mine site. According to the cluster analysis, pollutant metals of As and Cu were presented a strong spatial autocorrelation structure in cluster D. The concentration of As was 0.83mg/kg and shown to increase from the south to north direction. The spatial distribution maps of the soil components using geostatistical method might be important in future soil remediation studies and help decision-makers assess the potential health risk affects of the abandoned mining sites.
The Research about Map Model of 3D Road Network for Low-carbon Freight Transportation
Lee, Sang-Hoon ;
Journal of Korea Spatial Information Society, volume 20, issue 4, 2012, Pages 29~36
DOI : 10.12672/ksis.2012.20.4.029
The low-carbon freight transportation system was introduced due to increase traffic congestion cost and carbon-dioxide for global climate change according to expanding city logistics demands. It is necessary to create 3D-based road network map for representing realistic road geometry with consideration of fuel consumption and carbon emissions. This study propose that 3D road network model expressed to realistic topography and road structure within trunk road for intercity freight through overlaying 2D-based transport-related thematic map and 1m-resolution DEM. The 3D-based road network map for the experimental road sections(Pyeongtaek harbor-Uiwang IC) was verified by GPS/INS survey and fuel consumption simulation. The results corresponded to effectively reflect realistic road geometry (RMSE=0.87m) except some complex structure such as overpass, and also actual fuel consumption. We expect that Green-based freight route planning and navigation system reflected on 3D geometry of complex road structure will be developed for effectively resolving energy and environmental problems.
Concept of Spatial Information Social Platform and Role of Government as a Platformer
Choi, Won-Wook ; Hong, Sang-Ki ; Shin, Dong-Bin ; Ahn, Jong-Wook ;
Journal of Korea Spatial Information Society, volume 20, issue 4, 2012, Pages 37~45
DOI : 10.12672/ksis.2012.20.4.037
Moving forward on smart society, change of the way to solve the spatial issue used in information society is required. In order to be competitive and sustainable spatial information service, existing "spatial information open platform" strategy needs to be transformed into "spatial information social platform". The requirement for the spatial information open platform to be socialized and evolved into the spatial information social platform is investigated with respect to the characteristics of social platform P. Savalle(2010) suggested. Based on the investigation, the definition of spatial information social platform is formulated. Several roles of the government as a platformer to create and manage the spatial information social platform are suggested.
Method of Monitoring Forest Vegetation Change based on Change of MODIS NDVI Time Series Pattern
Jung, Myung-Hee ; Lee, Sang-Hoon ; Chang, Eun-Mi ; Hong, Sung-Wook ;
Journal of Korea Spatial Information Society, volume 20, issue 4, 2012, Pages 47~55
DOI : 10.12672/ksis.2012.20.4.047
Normalized Difference Vegetation Index (NDVI) has been used to measure and monitor plant growth, vegetation cover, and biomass from multispectral satellite data. It is also a valuable index in forest applications, providing forest resource information. In this research, an approach for monitoring forest change using MODIS NDVI time series data is explored. NDVI difference-based approaches for a specific point in time have possible accuracy problems and are lacking in monitoring long-term forest cover change. It means that a multi-time NDVI pattern change needs to be considered. In this study, an efficient methodology to consider long-term NDVI pattern is suggested using a harmonic model. The suggested method reconstructs MODIS NDVI time series data through application of the harmonic model, which corrects missing and erroneous data. Then NDVI pattern is analyzed based on estimated values of the harmonic model. The suggested method was applied to 49 NDVI time series data from Aug. 21, 2009 to Sep. 6, 2011 and its usefulness was shown through an experiment.
A Study on the Strategies for Promoting Spatial Information Service for Mobile Environment
Hwang, Jung-Rae ; Kim, Tae-Hoon ; Choi, Hyun-Sang ;
Journal of Korea Spatial Information Society, volume 20, issue 4, 2012, Pages 57~67
DOI : 10.12672/ksis.2012.20.4.057
Recently, market of mobile spatial information service is increasing along with enlargement of geo-spatial information utilization area and spread of smartphone. In particular, smartphone users look forward to utilizing spatial information service more easily and conveniently. Korea has the potential for spatial information technology development, but does not have enough governmental support to develop various spatial information service in mobile network environment. Hence, it is need to make governmental support plans for utilizing mobile services and promoting the related industry base on mobile spatial information. In this paper, we propose governmental action plans for utilizing mobile services and promoting the related industry by surveying mobile application/web services and analyzing demands of mobile spatial information experts.
Analyzing Land Use Patterns of C.B.D. Using Special Quotients - The Case of Downtown Seoul -
Kim, Tae-Ho ; Yuh, Hong-Koo ;
Journal of Korea Spatial Information Society, volume 20, issue 4, 2012, Pages 69~82
DOI : 10.12672/ksis.2012.20.4.069
The purpose of this study was to identify structural properties of C.B.D and to provide direction that required for the plan and its development by analyzing land use patterns and its characteristics in the center of the city. In this study, the future planning elements and detailed land use of Seoul was analyzed, in regard to the spatial structural hierarchy and the function of downtown, by investigation of its current urban spatial structure. First, the characteristic of the land-use for merchandising facilities is that it is developed from west to east along the Jong-ro, Myungdong and Namdaemun, it shows high rate of the facilities along the horizontal axis. The large market area on this district would be the reason to the high rate of mechandising facilities. Second, the characteristic of the land-use for business facilities is that it is highly rated on the area passing through the Sejong-ro and Seoul station. The analysis result of our investigation is that the projects executed by Seoul city such as 'downtown maintenance planning' and 'downtown recreation program' strengthened functions of business and merchandising and promoted downtown shopping, leisure, tourism functions resulting activation of nearby market place and evaluated as maintaing the centrality of downtown Seoul well.
A Nearest Neighbor Query Processing Algorithm Supporting K-anonymity Based on Weighted Adjacency Graph in LBS
Jang, Mi-Young ; Chang, Jae-Woo ;
Journal of Korea Spatial Information Society, volume 20, issue 4, 2012, Pages 83~92
DOI : 10.12672/ksis.2012.20.4.083
Location-based services (LBS) are increasingly popular due to the improvement of geo-positioning capabilities and wireless communication technology. However, in order to enjoy LBS services, a user requesting a query must send his/her exact location to the LBS provider. Therefore, it is a key challenge to preserve user's privacy while providing LBS. To solve this problem, the existing method employs a 2PASS cloaking framework that not only hides the actual user location but also reduces bandwidth consumption. However, 2PASS does not fully guarantee the actual user privacy because it does not take the real user distribution into account. Hence, in this paper, we propose a nearest neighbor query processing algorithm that supports K-anonymity property based on the weighted adjacency graph(WAG). Our algorithm not only preserves the location of a user by guaranteeing k-anonymity in a query region, but also improves a bandwidth usage by reducing unnecessary search for a query result. We demonstrate from experimental results that our algorithm outperforms the existing one in terms of query processing time and bandwidth usage.
K-Anonymity using Hierarchical Structure in Indoor Space
Kim, Joon-Seok ; Li, Ki-Joune ;
Journal of Korea Spatial Information Society, volume 20, issue 4, 2012, Pages 93~101
DOI : 10.12672/ksis.2012.20.4.093
Due to complexity of indoor space, the demand of Location Based Services (LBS) in indoor space is increasing as well as outdoor. However, it includes privacy problems of exposing personal location. Location K-anonymity technology is a method to solve the privacy problems with cloaking their locations by Anonymized Spatial Region(ASR). It guarantees K users within a region containing the location of a given user. However previous researches have dealt the problems based on Euclidean distance in outdoor space, and cannot be applied in indoor space where there are constraints of movement such as walls. For this reason, we propose in this paper a K-anonymity for cloaking indoor location in consideration of structures and representation of indoor space. The basic concept of our approach is to introduce a hierarchical structure as ASR for including K-1 users for cloaking their locations. We also proposed a cost model by K and attributes of hierarchical structure to analyze the performance of the method.