• Title/Summary/Keyword: GIS기법

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Possibility of GIS technology Application for Heat Island Analysis (열섬현상분석을 위한 GIS기법 적용 가능성)

  • Han, Ki-Bong;Kang, In-Joon;Sul, Moon-Hyung;Park, So-Hyun
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2010.04a
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    • pp.399-401
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    • 2010
  • Heat island phenomenon is explained that rapid urbanization according to increase population, traffic amount etc. Meantime it has approximately analyzed through the climatic element, satellite image. GIS technology is developing in many fields high resolution satellite, virtual geographic information system (VGIS), lidar, a highly spatial analysis. In this technology progress to get a accuracy and improve efficiency of heat island analysis

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Location Selection for Residential Development with AHP and GIS Analysis Modeling Method (계층적 GIS분석 모델링에 의한 주거지개발 적지선정)

  • Han, Seung-Hee
    • The Journal of the Korea Contents Association
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    • v.11 no.4
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    • pp.440-447
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    • 2011
  • Selecting a suitable place is to determine the attributive conditions and qualified areas for the aim as factors and is to be fulfilled systematically for selecting the area which satisfies all these. This research tries to achieve a rational suitability analysis of residential development using the GIS modeling method and the hierarchical analysis process. A spatial and attributive analysis has been systematized for selecting a suitable place for the study and GIS analysis model has been used for the effective conclusion drawing for different levels. As a next step, a quantitative and qualitative evaluation index was created through complex consideration of the criteria and decision factors of the location selection, and weights were added depending on the relative importance of these factors. In particular, 3D terrain model simulation method has been used in order to reflect the aesthetic factors of the scenery which is an element of the subjective evaluation factors and considered qualitative and subjective evaluation factors which were not considered for the existing AHP technique. After the research, a location that satisfies complex requirements was found rapidly and accurately through the GIS model and hierarchical analysis.

An Implementation of the Disaster Management Systems on the Space and Terrestrial System Damages by Solar Maximum (태양폭풍 영향 우주 및 육상시스템 피해에 관한 재난안전정보시스템 구현)

  • Oh, Jongwoo
    • Journal of the Society of Disaster Information
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    • v.8 no.4
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    • pp.419-431
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    • 2012
  • This paper takes precautions proposals against prospective disasters from the space weather maximum in 2013. A geomagnetic space storm sparked by a solar maximum like the one that flared toward earth is bound to strike again and could wreak havoc across the modern world. The purpose of the study is that the disaster reduction and safety service implementation study on the ultimate space weather systems by the information systems of the space weather. The process methods of the study are that an implementation of preparation for the smart IT and GIS based disaster management systems of the solar maximum deal with analysis on the flare, solar proton event, and geomagnetic storm from space blasters, These approach and methods for the solar maximin display national policy implementation of the pattern of the radio wave disasters from the protection and preparation methods. This research can provide affective methods for the saving lives and property protections that implementation of the disaster prediction and disaster prevention systems adapts the smart IT systems and converged decision making support systems using uGIS methodology.

GIS Management on Risk Evaluation of a Road Slope Using Terrestrial LiDAR (지상 LiDAR를 활용한 접도사면 위험평가에 따른 GIS관리)

  • Jang, Yong Gu;Kwak, Young Joo;Kang, In Joon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.26 no.1D
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    • pp.169-175
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    • 2006
  • Recently, slope failures are disastrous when they occur in mountainous area adjoining highways. The accidents associated with slope failures have increased due to rapid urbanization of mountainous area. Therefore, the inspection of slope is conducted to maintain road safety as well as road function. In this study, we apply to the remedy which is comparing existent description to advanced technology using GIS. We utilize a Terrestrial LiDAR, one of the advanced method, to generate precise and complete road slope model from expert point of view. In result, we extract hazardous slope information from external measurements referring to the evaluation criteria of external slope stability. We suggest not only the database but also the method of road risk evaluation based on internet GIS.

Constructing Area Cartogram Using a GIS Based Circular Cartogram Technique (GIS 기반 원형 카토그램 기법을 이용한 카토그램 제작 방법 연구)

  • Kim, Young-Hoon
    • Journal of the Korean Geographical Society
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    • v.43 no.2
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    • pp.235-252
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    • 2008
  • Many cartographers have for many years searched for a way to construct cartograms in which the sizes of geographic areas such as states, counties or census tracts are reseated in proportion to their population or some other socio-economic properties. While many techniques and algorithms for creating cartograms have been proposed, some of them are still extremely complex to generate in a proper manner, and many of them suffer either from this lack of readability or from seamless integration with GIS software. This paper, therefore, presents a simple population cartogam technique based on the Circular Cartogram Algorithm(CCA) by Dorling(1996) to tackle these drawbacks by drawing the areas as simple circles for use as a base map and linking the construction with GIS mapping processes. For an automated approach in the cartogram generation, this paper proposes a close coupling method of ArcView GIS 3.3. package in order for users to access to the cartopam algorithm. Then, they will be available through an interface that the ArcView GIS system allows user-written routines to be accessed easily. The CCA and its coupling architecture ensure to improve the potential applicability of the use of cartograms to census mapping at practical levels. As the cartogram examples, cartograms of population and property types in 2005 Korea census data sets are illustrated in the end, by which viewers can easily identify the residential concentration and their relative ratio in Seoul metropolitan area.

A Visualization Method of High Definition Weather Radar Information for various GIS Platforms (다양한 GIS 플랫폼을 위한 고해상도 기상레이더 정보 시각화 기법)

  • Jang, Bong-Joo;Lim, Sanghun;Lee, Suk-Hwan;Moon, Kwang-Seok;Chandrasekar, V.;Kwon, Ki-Ryong
    • Journal of Korea Multimedia Society
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    • v.16 no.11
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    • pp.1239-1249
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    • 2013
  • According to development of weather radar, researches about observation, analysis or forecast of weather phenomena such as tornado, flash-flood etc. were encouraged by reducing frequency interferences, transmission noises, attenuations of radar signal. In contrast, there is a growing interest in the visualization and expression methods for weather radar data but weather radar manufacturers or the organs of government for weather are just busy interpreting expressed weather images projected on GIS. We propose an effective high definition weather radar information visualization method able to apply various GIS platforms to observe and take actions against rapid local weather changes effectively. In this paper, first we change information acquired from weather radar to raster or vector type high definition data structures using specific algorithms. And then, we quadrate our processed raster/vector type weather data with various GIS platforms accurately to make observers can recognize and check weather situations over exact geographical positions and elevations intuitively. Experimental results verify that our method make observers can recognize and analyze weather changes, tornados, local downpours or flash floods accurately by analyzing high definition weather radar data combined with GIS platform including detailed target locations and elevations.