• Journal of the Korean Association of Geographic Information Studies
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• v.12 no.2
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• pp.11-22
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• 2009

Recently the integration and development of ST(Spatial Technology) and forest geographic information have been used very efficiently for the forest administration. However, even though many application system related to forest information have been developed and improved, there are still paper based inventories management and hand work for data construction and upgrade. In this study the forest information warehouse, which is mapped and managed at work-site operations, was constructed based GIS technology so that the standardization and consistency of current data could be acquired in real time. In addition, these thematic maps were conducted on high resolution satellite images and managed in web based forest information data warehouse form and finally shared through Internet for the very first-line administration officials. This study shows that the forest information standardization service of municipal governments very first time in the Korea and provides the unified decision making support and enterprise formed forest database so that is expected to be the very successful sample to suggest the prototype of national forest spatial data infrastructure.

• Journal of the Korean Association of Geographic Information Studies
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• v.14 no.4
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• pp.128-136
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• 2011

To monitor and predict the change of coastal environment according to the construction of Saemangeum sea dyke and the development of land reclamation, we have done real-time and periodic ocean observation and numerical simulation since 2002. Saemangeum coastal environmental data can be largely classified to marine meteorology, ocean physics and circulation, water quality, marine geology and marine ecosystem and each part of data has been generated continuously and accumulated over about 10 years. The collected coastal environmental data are huge amounts of heterogeneous dataset and have some characteristics of multi-dimension, multivariate and spatio-temporal distribution. Thus the implementation of information system possible to data collection, processing, management and service is necessary. In this study, through the implementation of Saemangeum coastal environmental information system using geographic information system, it enables the integral data collection and management and the data querying and analysis of enormous and high-complexity data through the design of intuitive and effective web user interface and scientific data visualization using statistical graphs and thematic cartography. Furthermore, through the quantitative analysis of trend changed over long-term by the geo-spatial analysis with geo- processing, it's being used as a tool for provide a scientific basis for sustainable development and decision support in Saemangeum coast. Moreover, for the effective web-based information service, multi-level map cache, multi-layer architecture and geospatial database were implemented together.

• Journal of the Korean Association of Geographic Information Studies
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• v.17 no.3
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• pp.116-131
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• 2014

In this study, sunshine environment in an urban area is analyzed using a numerical model which considers sunshine-duration blocking by topography and buildings. The numerical model used in this study has an improvement in the algorithm detecting sunshine duration in the model domain. The main improvement in the algorithm is to detect sunshine duration using all the surfaces of any grid cell(the previous model uses the center of any grid cell). The improvement in the algorithm gives more accurate evaluation of sunshine duration at corner surfaces of buildings. Using the improvement model and geographic information system(GIS) data, sunshine environment is analysed at an building-congested area in Busan for a week in four seasons. The results show that sunshine duration can be much changed by apartment complexes, high-rise buildings, topography in the model domain.

• Spatial Information Research
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• v.23 no.1
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• pp.69-77
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• 2015

The aim of this study is to examine the research trends of global scientific production of Geospatial Information (GI) papers from 1998 to 2013 by using keyword network analysis. This study constructed keyword network model through papers and keywords related to GI research retrieved from the Web of Science DB and performed keyword network analysis such as Degree Centrality, Betweenness Centrality, and Closeness Centrality. The results show that GI has been steadily applied to various fields, and also the research trends of GI techniques could be quantitatively characterized through keyword network analysis. This study result can be applied to establish the policies and the national R&D planning of geospatial information.

• Spatial Information Research
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• v.9 no.2
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• pp.277-290
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• 2001

In 21st century, tourism can's be formed without tourism information systems. Like other cities Kwangju Met. City has managed tourist information system though internet, but it provide tourist only with poor information as text datum and image datum. Therefore tourist can's get the effective and proper tourism information about Kwangju from that system. The purpose of this paper is to develop tourism information system on the basis of geographic information system for providing tourist with effective geographic tourism information. In the first place, spatial database on tourism information about Kwangju was built by 3 stage of areal scope: national scale, provincial scale and city scale. Next, by analyzing existing tourist information system, 4 major system function is developed: viewing tourism map, guiding tourism information, searching tourism information and printing tourism map. By complement of multimedia datum, this system shall be a major tourism resource of Kwangju.

• 한국공간정보시스템학회:학술대회논문집
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• 2005.05a
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• pp.447-452
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• 2005

월드와이드웹(World Wide Web)의 발전과 더불어 지리정보시스템(GIS)은 웹사이트를 통한 공간 데이터의 접근에 대해 많은 관심을 가지게 되었다. 이러한 진보는 지리정보 산업이 단순한 공간자료 전달이 아닌 지식과 정보를 전달하는 새로운 단계로 성장한 것을 의미하며, 또한 공공의 목적뿐만 아니라 민간분야의 사업에 활용되어 부가가치를 높이는 계기가 되었다. 웹을 이용한 지리정보 유통에 대한 관심의 증가로 등장한 geoportal은 유럽의 여러 선진국과 미국 등에서 지역적 국가적 세계적인 범위의 공간정보 관리를 위하여 연구되고 있다. 본 연구는 유럽과 미국 등 기존의 통합유통체계에 대한 사례조사를 통해 우리의 geoportal 아키텍처를 제시하였다. 아키텍처는 Web portal, Web service, Data management를 구성요소로 하여 상호운용을 위한 미들웨어에 대해 논의한다.

• Journal of the Korean Association of Geographic Information Studies
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• v.5 no.1
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• pp.20-26
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• 2002

The forest fire occurrences and burned area are increasing every year since 1990 in Korea, of which 65% is covered by forest. This study attempts to analyze topographic characteristics of forest fire burned area using GIS, and we also applied the statistical analysis based on the fire characteristics such as weather, forest as fuels and topography in small and large forest fire burned areas. The result of the statistical analysis shows that the size of forest fire was related to the slope length, slope degree, wind speed, forest type, and forest continuity.

• Journal of the Korean Association of Geographic Information Studies
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• v.14 no.3
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• pp.96-109
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• 2011

Recently, the geographic information system(GIS) is generally used in various fields with the development of information and communication technology, with expansion of its applications and utilization scope. Especially, utilizing GIS is expected to have positive effects on the geography learning and more helpful for the geographic information observation compared to the picture or 2D based media. The effective visualization of complex geographic data does not only take realization of its visual information but also increases the human ability in analysis and understanding to use the geographic information. In this paper, we examine a method to develop the geography learning contents based on the technology with augmented reality and GIS, and then we have a case study for various kinds of visualization techniques and examples to use in geography learning situation. Moreover, we introduce an example of the manufacturing process from the existing GIS data to augmented reality based geography learning system. From the above, we show that the usefulness of our method is applicable for effective visualization of the three-dimensional geographic information in the geography learning environment.

• The Transactions of the Korea Information Processing Society
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• v.5 no.1
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• pp.223-235
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• 1998

도면 중에 내재한 지리정보를 이해해서 공간 자료에 대한 사용자의 질의에 응답할 수 있는 지능형 시스템의 설계는 화상처리 연구의 중요한 응용분야이다. 특히, 지도도면에는 도로, 강, 지역경계, 문자, 심벌 등의 지리정보가 존재하며, 이 개체와 개체 사이의 관계를 포함하는 데이터베이스의 구축은 매우 어려운 일이다. 본 논문에서는 지도도면으로부터 문자정보의 추출과 인식을 위해서 시신경계의 특징추출 이론을 적용한 공간 필터링 신경회로망을 제안한다. 본 시스템을 국립지리원 발행의 1/5,000지도에 적용하여 그 유효성을 보인다.

• Spatial Information Research
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• v.11 no.3
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• pp.291-299
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• 2003

The Mobile Mapping System collects geographic information through mounted sensors such as a pair of CCD camera, CPS, IMU(Inertial Measurement Unit) and Odometer at regular distance or time interval. The advantage of such system is to easy identification of positions and geographic informations of mobile objects in real time. Among many wireless communication ways for real-time positions and geographic information data from the mobile mapping system to the user such as PDA, wireless modem, cellophane, and web, the web is considered to be more stabile, effect and economic than any other methods. In this paper, a study on the web-based real-time mobile mapping platform to identify the user position is presented using the real-time NovAtel BDS.