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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Korea Spatial Information Society
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Journal DOI :
The Korean Association of Geographic Inforamtion Studies
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Volume & Issues
Volume 19, Issue 6 - Dec 2011
Volume 19, Issue 5 - Oct 2011
Volume 19, Issue 4 - Aug 2011
Volume 19, Issue 3 - Jun 2011
Volume 19, Issue 2 - Apr 2011
Volume 19, Issue 1 - Feb 2011
Selecting the target year
Vulnerability Assessment for Ocean to Climate Change Using Spatial Information Based on GIS
Park, Sun-Min ; Lee, Woo-Kyun ; Kwon, Tae-Hyub ; Lee, Beo-Dul ; Son, Yo-Whan ; Cho, Yong-Sung ;
Journal of Korea Spatial Information Society, volume 19, issue 3, 2011, Pages 1~9
The vulnerability of ocean should be assessed to establish the climate change adaptation policy in field of the ocean, which has big effect on human and natural system. In this study, the criteria for assessing vulnerability of ocean to climate change were employed in terms of sensitivity, adaptative capacity and exposure. And suitable indicators for the criteria were selected and spatial data set for the indicators was prepared. In the ocean sector, the data for indicators were divided into two types, such as the inland and ocean data. The inland data were extrapolated and integrated to the coordinate of ocean data for the vulnerability assessment to climate change. As a result, the spatially diverse distribution of vulnerability on the ocean could be derived from the integration of two types of data. The results showed that southwestern ocean is much more sensitive than west and east ocean. Also southwestern ocean of exposure ratio of change is higher than the other part of ocean. On the other hand the adaptative capacity found that the highest in east ocean. The vulnerability assessment result showed southwestern ocean is more vulnerable than the other part of ocean.
Evaluating Carbon Dioxide Emission from Cadastral Category based on Tier 3 Approach
Kim, Dae-Ho ; Um, Jung-Sup ;
Journal of Korea Spatial Information Society, volume 19, issue 3, 2011, Pages 11~22
It is usual for the carbon dioxide emission to be calculated by official energy consumption statistics produced from a number of specialized industrial process such as refinery, power plant etc. The aim of this research was to evaluate potential of cadastral system in monitoring carbon dioxide emitted from land use. An empirical study for a cadastral category was conducted to demonstrate how a on-site measurement can be used to assist in estimating the carbon dioxide emission in terms of land use specific settings. The cadastral category based analysis made it possible to identify area-wide patterns of carbon dioxide emission, which cannot be acquired by traditional Government statistics. It was possible to identify successively increasing trends in the human-related parcels such as housing land while decreasing trends of carbon dioxide in sink parcels(eg. forest). The results indicate that the cadastral parcel could be used not only as a tool to monitor carbon dioxide emission, but also as an evidence to restrict initiation of development activities causing negative influence to carbon dioxide emission such as road construction. As a result, the research findings have established the new concept of "carbon dioxide emission monitoring based on cadastral category", proposed as an initial aim of this paper.
Study on the Conformance Test Model for Intelligent Urban Geospatial Information Services
Kim, Eun-Hyung ;
Journal of Korea Spatial Information Society, volume 19, issue 3, 2011, Pages 23~31
As demands of intelligent urban geospatial information services are increasing in u-Cities, development and use of service standards for the cities are required to make the services interoperable. Conformance tests can be conducted for the standards to implement the services more interoperably and consistently. To improve the interoperability between services, it is necessary to build an evaluation model for services in a perspective of conformance tests. In the context, this study reviews the related references and establishes a conceptual model of the conformance tests for the services and provides an application of the model to a monitoring service for flowing water quantity to prove its usefulness.
The Analysis of 3D Position Accuracy of Multi-Looking Camera
Go, Jong-Sik ; Choi, Yoon-Soo ; Jang, Se-Jin ; Lee, Ki-Wook ;
Journal of Korea Spatial Information Society, volume 19, issue 3, 2011, Pages 33~42
Since the method of generating 3D Spatial Information using aerial photographs was introduced, lots of researches on effective generation methods and applications have been performed. Nadir and oblique imagery are acquired in a same time by Pictometry system, and then 3D positioning is processed as Multi-Looking Camera procedure. In this procedure, the number of GCPs is the main factor which can affect the accuracy of true-orthoimage. In this study, 3D positioning accuracies of true-orthoimages which had been generated using various number of GCPs were estimated. Also, the standard of GCP number and distribution were proposed.
A Dynamic Path Computation Database Model in Mobile LBS System
Joo, Yong-Jin ;
Journal of Korea Spatial Information Society, volume 19, issue 3, 2011, Pages 43~52
Recently, interest in location-based service (LBS) which utilizes a DBMS in mobile system environment has been increasing, and it is expected to overcome the existing file-based system's limitation in advanced in-vehicle system by utilizing DBMS's advantages such as efficient storage, transaction management, modelling and spatial queries etc. In particular, the road network data corresponds to the most essential domain in a route planning system, which needs efficient management and maintenance. Accordingly, this study aims to develop an efficient graph-based geodata model for topological network data and to support dynamic path computation algorithm based on heuristic approach in mobile LBS system. To achieve this goal, we design a data model for supporting the hierarchy of network, and implement a path planning system to evaluate its performance in mobile LBS system. Last but not least, we find out that the designed path computation algorithm with hierarchical graph model reduced the number of nodes used for finding and improved the efficiency of memory.
Location Tracking in Indoor Symbolic Space with RFID Sensors
Kang, Hye-Young ; Hwang, Jung-Rae ; Li, Ki-Joune ;
Journal of Korea Spatial Information Society, volume 19, issue 3, 2011, Pages 53~62
Spatial information services in indoor space are an im portant application area of GIS as in outdoor space. Unlike in outdoor space, a position in indoor space is specified by a symbolic code such as room number, rather than coordinate. Therefore tracking in indoor space is no longer a prediction of coordinates but a symbolic estimation on the current position of a moving object. In this paper, we propose a framework for tracking moving objects in indoor symbolic space with RFID sensors. First, we introduce the concepts of indoor symbolic space and tracking in indoor symbolic space, and define the accessibility graph for trackable indoor symbolic space. Second, we propose a deployment method of RFID readers and a construction algorithm of accessibility graph for trackable indoor symbolic space. Third, a tracking method is proposed for moving objects in symbolic indoor space with RFID sensors. Finally, we present an implementation exmaple and the result of experiment with real data to validate the proposed method.
A Study on the Movement of Street-based Urban Morphology Using Analysis of Integrated Land Use-Transportation
Joo, Yong-Jin ;
Journal of Korea Spatial Information Society, volume 19, issue 3, 2011, Pages 63~72
Urban space structure tends to have a significant change in accordance with maintenance of urban infrastructure such as a traffic route. For this reason, quantitative analysis has been needed to establish spatial distribution and location patterns by considering change of both road accessibility and urban infrastructure level, which can have the most pervasive influence in urban development process. Therefore, this paper aims to analyze spatio-temporal urban morphology through considering distribution patterns of road among transportation infrastructures, population, and spatial structure of metropolitan areas, focusing on Seoul where population growth and the size of urban area have been dramatically increased. For this, we firstly developed and constructed time-series GIS database by using satellite images and topographic maps of the last 70 years to analyze variables which affect urban growth and transportation. In particular, we analyzed the transform of the system of the street by Space Syntax which is able to grasp hierarchical spatial structure through visibility of space and spatial cognition in terms of accessibility. What's more, we analyzed and visualized the relationship urban morphology and road according the regions of Seoul through IPA(Importance Performance Analysis). In terms of the integration land-use and transportation, Space Syntax approach is expected to contribute to efficient urban planning through understanding the influence which various transportation phenomena has an effect on urban development patterns.
Design on the System and OSID Structure for Managing Object-Based Seamless Digital Map
Jo, Jun-Rae ; Shin, Sang-Cheol ; Kwon, Chan-O ; Jin, Heui-Chae ;
Journal of Korea Spatial Information Society, volume 19, issue 3, 2011, Pages 73~81
A study about UFID for the management and administration of digital map has achieved much progress through the Korea National Geographic Information Institute. But it is ture that the content and process is too complicated to be applied. For overcoming this and to make harmonious management of the object based seamless digital map, we need to develop the method which has the unique feature identifier on the digital map for management and administration. So, we introduce OSID(Object-based Seamless digital map IDentifier) on the object based seamless digital map and apply OSID in the system to manage the digital map. This study is based on the OSID basic structure which is applied in object based seamless digital map and design the structure of OSID system to maintain and manage each feature of the object based seamless digital map.
Prototype Implementation of a Context Awareness System by Analyzing Alarm and Neighborhood Environment for Managing Underground Facilities
Cho, Sung-Youn ; Hong, Sang-Ki ; Jang, Seok-Woo ;
Journal of Korea Spatial Information Society, volume 19, issue 3, 2011, Pages 83~93
Since urban facilities have a signigicant meaning that represents the degree of development of nations and cities, it is very important to effectively manage and operate the facilities. In this paper, we propose a context-awareness system for managing urban underground facilities intelligently and develop its algorithm and prototype. The algorithm of the suggested system includes the period from the point when various sensors set up in USN environments sense abnormal signals and make alarms to the point when the context-awareness system analyzes the alarm and sends the analysis results to integrated platform and related modules. We then implement the prototype of the proposed context awareness system and verify the effectiveness of the system by performing unit tests. Our developed prototype will become the basis of actual system development. We expect that the suggested system will be used as a good reference model of related systems managing various types of urban facilities.
Efficient Processing of Aggregate Queries in Wireless Sensor Networks
Kim, Joung-Joon ; Shin, In-Su ; Lee, Ki-Young ; Han, Ki-Joon ;
Journal of Korea Spatial Information Society, volume 19, issue 3, 2011, Pages 95~106
Recently as efficient processing of aggregate queries for fetching desired data from sensors has been recognized as a crucial part, in-network aggregate query processing techniques are studied intensively in wireless sensor networks. Existing representative in-network aggregate query processing techniques propose routing algorithms and data structures for processing aggregate queries. However, these aggregate query processing techniques have problems such as high energy consumption in sensor nodes, low accuracy of query processing results, and long query processing time. In order to solve these problems and to enhance the efficiency of aggregate query processing in wireless sensor networks, this paper proposes Bucket-based Parallel Aggregation(BPA). BPA divides a query region into several cells according to the distribution of sensor nodes and builds a Quad-tree, and then processes aggregate queries in parallel for each cell region according to routing. And it sends data in duplicate by removing redundant data, which, in turn, enhances the accuracy of query processing results. Also, BPA uses a bucket-based data structure in aggregate query processing, and divides and conquers the bucket data structure adaptively according to the number of data in the bucket. In addition, BPA compresses data in order to reduce the size of data in the bucket and performs data transmission filtering when each sensor node sends data. Finally, in this paper, we prove its superiority through various experiments using sensor data.