KJC Korea
Journal Central

In this study we propose the future direction of Korean Online National Atlas by analyzing the research papers and the sites related to the foreign online national atlases. This study is comprised of three folds: First, we investigate the preceding researches related to the online atlases. Second, we derive the implications through the analyses of the foreign online national atlases. Last, we propose the future direction of Online National Atlas of Korea by implementing a online population a map as a prototype based on the future implications above. There are four important things in implementing the online national atlas; reinforce the interaction with users, reflect social interests of a nation, apply the data which is being revised periodically, and be utilized in various platforms by applying the standard of spatial and attribute data. We recognized that these kinds of functions could be implemented in the same environment with the prototype proposed in this study.

It is required to investigate climate data and control their quality for the accurate analysis of the data and the prediction of future climate environment. Therefore, this research suggested the efficient quality assurance/quality control (QA/QC) approach of climate data through the development of geovisualization tools based on HTML5. The proposed QA/QC method was found to allow multiple experts to examine the quality of climate data in an Internet environment. In addition, the various types of distinct QA/QCs could be achieved by applying the geovisualization tools for the management tasks of climate data. It is anticipated that the proposed approach of the research would be potentially utilized by the Korea Meteorological Administration in controlling the quality of climate data.

One of the current trends in Advanced Traveler Information System (ATIS) is that drivers may wish routes other than just the shortest in time or distance. This study aims to combine traffic pattern data with a smartphone app for user-preferred driving routes such as the shortest distance, shortest time, fewest accidents, fewest intersections, and most multilane sections. A set of traffic pattern data was created from three-month Urban Traffic Information System (UTIS) data for Seoul and was organized within a server-side database management system (DBMS) working with the client-side smartphone app for presenting route information and the middle-tier brokerage module for communicating between the client and the server. We designed and implemented the Android-based smartphone app and conducted a feasibility test for the driving routes in Gangnam-gu, Seoul. The effectiveness of the user-preferred driving routes was maximized by the fewest-accident route during both peak and off-peak periods. This paper showed the user-preferred driving routes can help uninformed drivers and can be custom-tailored for services on the smart devices.

This study aims to investigate and provide the most appropriate models estimating housing price. This study applies two approaches in modeling apartment prices in Seoul, Korea. First, existing methods such as Ordinary Least Square (OLS), Spatial regression, and multilevel models are applied. Second, multilevel models with spatial components are newly applied. In the process, explaining both sales and lease prices, this study applies various local features such as education, view, neighborhood markets, and medical services. The results show that the multilevel model with spatial component performs best. This study contributes to literature in two perspectives: 1) provision of new methodology in housing study by applying spatial component to multilevel modeling 2) provision of useful geographic information for housing and land management in Seoul.

As the demand for social security has increased recently, a gendered space representing the characterized space possession and use by gender has been of particular interest. Most studies related to a gendered space have been conducted from a theoretical standpoint by focusing on the discourse. However, there has been relatively little attention paid to the empirical analysis in an urban area. Therefore, the purpose of this paper is to explore how the gendered spaces are represented in an urban space from the spatial organizational perspective. More specifically, we analyzed the spatial gendering of Seoul by focusing on the spatial distribution of the urban building use reflecting urban land use and economic activities in practice. As a result of analysis, we found that the male space which men occupy and utilize dominates the female space and gendered spaces appear a mixed pattern largely concentrated in the urban centers, and thus the gendered space is not precisely distinguished from each other. However, each gendered space presents a locally clustered spatial patterns on continuous urban space.

It is a starting point to understand the concepts of geography curriculum in the class of geography because geographical concepts serve as a medium to convey the knowledge and become a tool of geographical thoughts. In order to improve the efficiency of geography education, it is necessary to help for students to study through the relationships among the inter-geographical concepts and the hierarchical structures of geography along with the well-defined proposition of geographical concepts. Semantic Web and ontology, appeared to overcome the limitations of key word retrieval recently, make a retrieval based on meanings and concepts possible. It is possible for us to explicitly express the geographical concepts by using the ontology because it consists of the languages of taxonomy which classify the type and category of concepts hierarchically and structurally. As a result, the learning of geographical concepts required in the geography curriculum is possible by applying the ontology technology. The objective of this study is to implement geo-ontology, to evaluate the accuracy of ontology system, and to propose the future tasks to improve the understanding and learning curve of geography with the case of coastal topology.

Frequently reported volcanic eruption events such as Sakurajima volcano in 2013 have made people worried about the time of the Baekdusan volcanic eruption and the extent of it. Volcanic eruption may bring volcanic disasters including ash, pyroclastic flow, lahar and earthquake, of which, especially, volcanic ash of Baekdusan has assumed and reported to have an influence on Republic of Korea based on the wind direction. Previous researches have focused on the geological and atmospheric modeling and economic damage assessment in separate field. This study aims to integrate FALL3D volcanic ash modeling and economic damage assessment by designing and programming based on GIS data. The amount of ash deposition can be calculated by FALL3D model with controlling parameters and expressed in hazard map. The detailed information on the agricultural activities in the regional unit has been merged with economic damage assessment model, then we are able to draw volcanic ash damage map. This module will be a part of a volcanic ash response system and give an intuition of the dynamic concept of damage map. GeoSpatial information design and cartographical expression will cover the different fields such as volcanology, atmospheric science, civil engineering and economics to response the question “How much will Baekdusan volcano eruption affect our life and economy? The answer will depends on the input parameters of the integrated GIS model during the event.

This study relates to the need for GIS in the soil contamination survey which is performing annually in Korea, accordance with the Soil Conservation Act. To do this, we had explored the potential use of GIS in the each phase of planning, sample survey and results analysis of soil contamination survey. Soil contamination survey of 604 samples, which were carried out in Gangwon-Do from 2010 to 2012, were analyzed by GIS. The level of spatial clustering of three years cumulative data was higher than that of one year's data. This means that the spatial distribution of survey points should be considered in the planning phase. In addition, survey points should be recorded as latitude and longitude coordinates by the GPS, because to record the site with the address or the plane coordinate is likely to cause error. This is also need for the efficient data management and precise spatial analysis. Finally, the result of soil contamination is mapped in order to improve the efficiency of communication and decision-making. From these mapa, we can find additional relationship of the other factors like roads and rivers which relate to soil contamination.