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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 17, Issue 4 - Dec 2014
Volume 17, Issue 3 - Sep 2014
Volume 17, Issue 2 - Jun 2014
Volume 17, Issue 1 - Mar 2014
Selecting the target year
Development of Crown Fire Propagation Probability Equation Using Logistic Regression Model
Ryu, Gye-Sun ; Lee, Byung-Doo ; Won, Myoung-Soo ; Kim, Kyong-Ha ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 1~12
DOI : 10.11108/kagis.2014.17.1.001
Crown fire, the main propagation type of large forest fire, has caused extreme damage with the fast spread rate and the high flame intensity. In this paper, we developed the probability equation to predict the crown fires using the spatial features of topography, fuel and weather in damaged area by crown fire. Eighteen variables were collected and then classified by burn severity utilizing geographic information system and remote sensing. Crown fire ratio and logistic regression model were used to select related variables and to estimate the weights for the classes of each variables. As a results, elevation, forest type, elevation relief ratio, folded aspect, plan curvature and solar insolation were related to the crown fire propagation. The crown fire propagation probability equation may can be applied to the priority setting of fuel treatment and suppression resources allocation for forest fire.
A Study on the IT-Based Response System Development for Mt. Baekdu Volcanic Disaster
Kim, Tae-Hoon ; Youn, Jun-Hee ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 13~23
DOI : 10.11108/kagis.2014.17.1.013
The Korea had been known as a safe region in volcanic disaster. However, precursor phenomena for volcanic eruption in mountain Baekdu have been frequently reported in these days. Therefore, the number of volcano experts, who warn the volcanic eruption in the Korean peninsula, has been increased. This paper describes the plan for developing volcanic disaster response system for mountain Baekdu. First, disaster prevention business system of National Emergency Management Agency(NEMA) and related IT-based systems are analyzed. Second, business processes for volcanic disaster response are derived based on the business system. Third, The system architectures are designed referred to related disaster response system, and required spatial information is investigated. Finally, we implement the pilot system to test the suggested volcanic disaster response system. Applying suggested volcanic disaster response system to NEMA, additional test and system supplementation should be carried out. We expect that the complete volcanic disaster response system, which will be implemented based on this research, will minimize the volcanic disaster damage in the area of Korea, China, and Japan.
Classification Analysis of Road Network-Based Land Use Considering Spatial Structure
Kim, Hye-Young ; Jun, Chul-Min ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 24~34
DOI : 10.11108/kagis.2014.17.1.024
To understand urban space and make appropriate plans, the integrative analyses considering road and land use simultaneously are required. In addition, studies that involve both horizontal and vertical spaces must be taken into consideration. Therefore, the purpose of this study is to conduct a classification analysis of road network-based land use considering spatial structure. The methods of this study were as follows; first, a space syntax theory considering the structure of road network was introduced for roads. For land use, to consider both horizontal and vertical development densities of residential and commercial buildings were used. And the explanatory power of three variables-Euclidean distance, global integration and length-reflected global integration-were compared. Third, based on road as an appropriate variable, modified-IPA was conducted with land use and the results were categorized into four areas. The proposed method was applied to Gangnam-gu, a CBD area in Seoul, and results were analyzed and visualized using GIS.
Impact of the Local Surface Characteristics and the Distance from the Center of Heat Island to Suburban Areas on the Night Temperature Distribution over the Seoul Metropolitan Area
Yi, Chae-Yeon ; Kim, Kyu-Rang ; An, Seung-Man ; Choi, Young-Jean ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 35~49
DOI : 10.11108/kagis.2014.17.1.035
In order to understand the impacts of surface characteristics and the distance from the urban heat island center to suburban areas on the mean night time air temperature, we analyzed GIS and AWS observational data. Spatial distributions of mean night time air temperature during the summer and winter periods of 2004-2011(six years) were utilized. Results show that the temperature gradients were different by distance and direction. We found high correlation between mean night-time air temperature and artificial land cover area within 1km and 200m radii during both summer(R=0.84) and winter(R=0.78) seasons. Regression models either from 1km and 200m land surface data explained the distribution of night-time temperature equally well if the input data had sufficient resolution with detailed attribute including building area and height.
A Review on Improvements of Climate Change Vulnerability Analysis Methods : Focusing on Sea Level Rise Disasters
Kim, Ji-Sook ; Kim, Ho-Yong ; Lee, Sung-Ho ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 50~60
DOI : 10.11108/kagis.2014.17.1.050
The purpose of this study is to identify characteristics and improvements of the climate change vulnerability analysis methods to build a safe city from disasters. For this, an empirical analysis on sea level rise disasters was performed focusing on Heaundae-gu in Busan. For the analysis, Census output areas and Dongs were set as analysis unit and their disaster vulnerability was analyzed. Improvements were reviewed through the comparison and review of analysis process and results. According to analysis results, Modifiable Areal Unit Problem(MAUP) which gives different results according to aggregate unit occurs. Improvements were induced by analysis process, and it was found that in spatial unit setting stage that becomes the base of analysis, analysis unit adjustment, score computation method adjustment, and clearer analysis method for each disaster type would be needed. In analysis execution stage, it was thought that weighting according to variables, diversification of variables, and exclusion of subjective analysis selection method would be needed. It is expected that accurate the total disaster vulnerability analysis will be the base for the improvement of efficiency in urban resilience responding to future weather changes.
A Spatial Distribution Analysis and Time Series Change of PM10 in Seoul City
Jeong, Jong-Chul ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 61~69
DOI : 10.11108/kagis.2014.17.1.061
In this study spatial analysis of PM10 was performed to Particulate Materials(PM) less than
in diameter in Seoul city. Because PM10 are responsible for the increasing mortality rate of lung cancer and cardiovascular diseases, spatial distribution of PM10 are special interest in air pollution of Seoul. In this study, spatial analysis of Particulate Materials were monitored by monthly averaged PM10 concentration of 2010, 2011. The monthly spatial patterns of PM10 showed the west area of Seoul(Youngdungpo) higher PM10 concentration than northern part of Seoul in early spring and winter seasons. In the comparison of PM10 concentration distribution patterns in 2010 and 2011, the PM10 concentration of 2011 at Gangnam and Songpa-gu were more increased than yearly averaged patterns of 2010. The distribution patterns of PM10 in Seoul city showed the high concentration PM10 of several areas with Youngdungpo-gu, Gangnam-gu and Cheongnyangni. Therefore we need to establish PM10 management strategy for these area.
Establishment and Application of GIS-Based DongNam Kwon Industry Information System
Nam, Kwang-Woo ; Kwon, Il-Hwa ; Park, Jun-Ho ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 70~79
DOI : 10.11108/kagis.2014.17.1.070
Following the technology developments of traffic network and communication for the wide area, the importance of the cooperation system to vitalize the wide area economy is increasing. Therefore, in this study, DongNam Kwon industry information system is established for the industrial information sharing based on GIS in the DongNam Kwon wide area economy. The DongNam Kwon is an industrial integration area centered with the manufacturing so that the operation of effective industrial cluster and cooperation systems are required across the administrational boundaries. To establish the database of the information, the information system was established utilizing already established industrial databases in Busan, Ulsan and Gyeongnam. But, various issues caused by the discordances among the data of each local government and the insufficiency of GIS based location information have been found. According to the analysis, the standardization considering the courses of collection, distributions and utilization are required immediately to solve the issues. This study establishes an 2-way industrial information system enabling the information creation and the phased approach between the administrator and the user in the bi-directions on the web by utilizing cadastral and numerical maps. The result of this study would have a meaning in providing a fundamental frame for cooperative responses and cooperation system for DongNam Kwon's industrial promotion using industrial information sharing.
Stand Volume Estimation of Pinus Koraiensis Using Landsat TM and Forest Inventory
Park, Jin-Woo ; Lee, Jung-Soo ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 80~90
DOI : 10.11108/kagis.2014.17.1.080
The objective of this research is to estimate the stand volume of Pinus koraiensis, by using the investigated volume and the information of remote sensing(RS), in the research forest of Kangwon National University. The average volume of the research forest per hectare was
and standard deviation was
. Before and after carrying out 3 by 3 majority filtering on TM image, eleven indices were extracted each time. Independent variables needed for linear regression equation were selected using mean pixel values by indices. The number of indices were eleven: six Bands(except for thermal Band), NDVI, Band Ratio(BR1:Band4/Band3, BR2:Band5/Band4, BR3:Band7/Band4), Tasseled Cap-Greeness. As a result, NDVI and TC G were chosen as the most suitable indices for regression before and after filtering, and R-squared was high: 0.736 before filtering, 0.753 after filtering. As a result of error verification for an exact comparison, RMSE before and after filtering was about
, respectively, and bias was
, respectively. Therefore, the regression conducted with filtering was selected as an appropriate model because of low RMSE and bias. The estimated stand volume applying the regression was
, and the average volume was
. This estimation was 1.2 times higher than the actual stand volume of Pinus koraiensis.
A Study on Hydrologic Clustering for Standard Watersheds of Korea Water Resources Unit Map Using Multivariate Statistical Analysis
Ahn, So-Ra ; Kim, Sang-Ho ; Kim, Seong-Joon ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 91~106
DOI : 10.11108/kagis.2014.17.1.091
This study tries to cluster the 795 standard watersheds of Korea Water Resources Unit Map using multivariate statistical analysis technique. The 30 factors of watershed characteristics related to topography, stream, meteorology, soil, land cover and hydrology were selected for comprehensive analysis. From the factor analysis, 16 representative factors were selected. The significant factors in order were the pedological feature, scale and geological location and meteorological and hydrological features of the watershed. As a next step, the 73 gauged watersheds were selected for cluster analysis. They are scattered properly to the whole country and the discharge data were within a confidential level. Based on the 73 watersheds, the other ungaged watersheds were clustered by applying the 16 factors and calculating Euclidian distances. The clustering results showed that the similarity between standard watersheds within the same river basin were 87%, 69%, 41%, 52%, and 27% for Han, Nakdong, Geum, Seomjin, and Yeongsan river basins respectively.
Runoff Estimation Using Rainfalls Derived from Multi-Satellite Images
Kim, Joo-Hun ; Kim, Kyung-Tak ; Choi, Yun-Seok ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 107~118
DOI : 10.11108/kagis.2014.17.1.107
The objective of this study is to suggest a method for estimating rainfall-runoff relationship using runoff analysis with satellite rainfall and global geographic data for the region due to lack of observed data. This study uses CMORPH and GSMaP_NRT as satellite rainfall data, and GTOPO30 and GLCC as global geographic data. IFAS is used for runoff modeling. In the evaluation of rainfall data, the correlation coefficients of CMORPH and GSMaP_NRT with observed data are 0.37 and 0.30 respectively. Calculated peak runoffs using IFAS show small relative errors with observed data in case of parameters are not calibrated with satellite rainfall data. Therefore, the methods suggested in this study could be applied to ungauged watershed. In the future, this study will analyze runoff for North Korea, a representative inaccessible region, using satellite rainfall and global geographic data.
Application Technique of Geospatial Information for Pre-Environment Survey in Construction Site
Yeon, Sang-Ho ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 119~128
DOI : 10.11108/kagis.2014.17.1.119
The environmental survey in advance in the construction works is very important for planning and designing as well as the service of field survey before carrying out construction. The topographical application of spatial information coupled with USN is the very economical method for the survey and research every processing stage of construction field in advance. Therefore the execution of very important role for environmental planning and fundamental designing of construction reduces the unnecessary trial and error through the environmental survey in advance. In this research the environment of existent construction field is transformed to that of digital spatial information by fusing the sensor network with wireless technique on the base of spatial position. In addition, the sink sensor cumulates the environmental data measured from each USN sensor using small wireless environmental sensors installed at the construction site and changes of various environmental data at the present constructing site are able to be monitored at 3-D topographical space in real time by using the method for transmitting the image of PC output based on TinyOS.
Applicability of Sobaek Radar Rain for Flood Routing of Chungju Dam Watershed
Ahn, So-Ra ; Park, Hye-Sun ; Han, Myoung-Sun ; Kim, Seong-Joon ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 129~143
DOI : 10.11108/kagis.2014.17.1.129
The purpose of this study is to evaluate the availability of dual-polarization radar rain for flood routing in Chungju Dam watershed(
) using KIMSTORM (Grid-based KIneMatic wave STOrm Runoff Model). The Sobaek dual-polarization radar data for 1 heavy rain and 3 typhoon(Khanun, Bolaven, and Sanba) events in 2012 were obtained from Han River Flood Control Office. The spatio-temporal patterns between the two data were similar showing the ratio of radar rain to ground rain with 0.97. The KIMSTORM was set to
resolution and a total of 45,738 cells(198 rows
231 columns) for the watershed. For radar rain and 41 ground rains, the model was independently calibrated using discharge data at 3 streamflow gauging stations(YW1, YC, and CJD) with coefficient of determination(
), Nash and Sutcliffe Model Efficiency(ME), and Volume Conservation Index(VCI). The
, ME, and VCI 0.80, 0.62 and 1.08 for radar rain and 0.83, 0.68 and 1.10 for ground rain respectively.
Conceptual Design of Damage Assessment Inventory in Response to Disaster Risk for Infrastructures Close to River
Jo, Yun-Won ; Choi, Hyeoung-Wook ; Choi, Soo-Young ; Jo, Myung-Hee ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 144~158
DOI : 10.11108/kagis.2014.17.1.144
This research presented a conceptual design of damage assessment inventory for efficient response to natural disaster damage of infrastructure close to the river. It consists of classification and categorization of facilities for accomplishing the conceptual design of inventory for damage of infrastructure close to the river. However, there are arising problems of efficient management on disaster, such as poor management of data facilities and constructions which is managed by the different types of government departments. Therefore, this research presented conceptual models of damage assessment inventory on risks of damage infrastructure close to the river using the United states' HAZUS-MH to analyze damage facilities, type of asset classification, classification of domestic facilities and guidelines for computing the value of assets. Conceptual models of inventory this research presented is to be used on the data for damage response on protected inland damage assessment and to increase efficiency for evaluating detailed damage amount of private property by natural disaster and to establish a restoration plan.
Calculating the Sunlight Amount for Buildings Using SAS: A Case Study of Gyeongsan City
Kim, Do-Ryeong ; Kim, Sung-Jae ; Han, Soo-Hee ; Jo, Myung-Hee ;
Journal of the Korean Association of Geographic Information Studies, volume 17, issue 1, 2014, Pages 159~172
DOI : 10.11108/kagis.2014.17.1.159
As greenhouse gas emissions have been increasing in the world, global warming is being recognized as a cause of the global problems like climate change. This is closely associated the fossil fuels. Thus renewable energy has been brought to the attention of many people as the upcoming alternative energy source to cope with the fossil drain and increased environmental regulations. Especially, the solar energy among renewable energy has drastically increased. In this study, we calculate on daylight ratio about the solar energy for buildings based on digital surface model. The digital surface model was made using the spatial information data. And it was simulated the shadow analysis using SAS. Therefore, it was suitable places to utilize the solar energy in the Gyeongsan city. Consequently, the daylight ratio was considered important factor to select region of the industry of the solar light power generation.