• 제목/요약/키워드: Urban cartography

검색결과 316건 처리시간 0.021초

모바일 GIS에 의한 홍수재해관리 (Flood Hazard Management Using Mobile GIS)

  • 강택순;강성봉;손홍규;유환희
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2003년도 추계학술발표회 논문집
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    • pp.297-302
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    • 2003
  • Recently, Flood hazard has been increased frequently in urban area by rainfall and Typhoon. To manage flood hazard effectively, it needs to construction of flood information management system. Especially, run-off by flood in urban area must be considered not only surface outflow by topographic gradient and elevation but also conduits outflow along conduit network. This paper suggests the flood hazard management system for analyzing flood outflow in urban area using conduits outflow simulation by ILLUDAS model and providing quickly flood hazard information using WebGIS and MobileGIS.

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그림자효과 보정을 통한 향상된 도시정보 인식 (Enhanced Urban Information Recognition through Correction of Shadow Effects)

  • 손홍규;윤공현;박효근
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2003년도 춘계학술발표회 논문집
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    • pp.187-190
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    • 2003
  • Due to complexity of diverse features in urban area, accurate feature extraction is laborious task in aerial and satellite imagery. Especially occlusion by buildings, and image distortion of shadow effects make processing more difficult work. In this study, algorithm was presented to correct of shadow effects in aerial color images. This algorithm enables user to accurately interpretate urban information by correction of shadow effects in aerial color images

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도시시설물 관리를 위한 모바일시스템 활용에 관한 연구 (A Study of Application of Mobile System for Urban Facility Management)

  • 나영우
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2010년 춘계학술발표회 논문집
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    • pp.411-413
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    • 2010
  • The purpose of this research is to study use method of mobile system for effective field management for urban facilities. GIS database could be standardized commonly useful for the site management of city facilities through standard list, standard items and standard specification appropriate for the mobile system, and this is effective to manage the city facilities on the site in real time.

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GIS을 활용한 장기 미집행 도시계획시설 재정비에 관한 연구 (A Study on the Reformation of Long-term Unexecuted Urban Plan Facilities using GIS)

  • 안형준;이미지;고준환;이상미
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2006년도 춘계학술발표회 논문집
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    • pp.491-494
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    • 2006
  • Many urban-plan facilities were settled by the government in the need of infrastructure due to the rapid urbanization. The Constitutional Court judged that the exclusion of land-owners' private right to use their land did not accord with the Constitution, and the infringement of their right because of currently unexecuted facilities became the urgent task to be solved due to the revision of the Urban plan law revised on January 28, 2000. Accordingly, the government needed to establish a complete plan to review and rearrange the long-term unexcuted urban plan facilities. For this plan to be successful, we have constructed the database of unexecuted urban plan facilities by using GIS analysis technique in this research. Further, we will construct a basic database to manage the unexecuted urban plan facilities by utilizing the database we have constructed, computerized geographical information files of LMIS, urban plan facilities data of UPIS, and other information.

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GLCM과 육안판독을 이용한 도시경계 추출 (Extracting Urban Boundary Using Grey Level Co-Occurrence Matrix Method and Visual Interpretation)

  • 손홍규;김기홍;유복모;방수남
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2003년도 춘계학술발표회 논문집
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    • pp.313-316
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    • 2003
  • Growing urban areas modify patterns of local land use and land cover. Land use changes associated with an urban area can be extensive. One way to understand and document land use change and urbanization is to establish benchmark maps compiled from satellite imagery The use of satellite imagery for monitoring urban growth has been widely demonstrated. Multi-temporal LANSAT TM image data has created the potential for monitoring urban change and land cover identification. In this study, for extracting urban boundary GLCM method and visual interpretation were used in CORONA imagery and SPOT imagery.

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Potential Effects of Urban Growth under Urban Containment Policy on Streamflow in the Gyungan River Watershed, Korea

  • Kim, Jinsoo;Park, Soyoung
    • 한국측량학회지
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    • 제33권3호
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    • pp.163-172
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    • 2015
  • This study examined the potential effects of urban growth on streamflow in the Gyungan River watershed, Korea, using urban containment scenarios. First, two scenarios (conservation and development) were established, and SLEUTH model was adapted to predict urban growth into the year 2060 with 20 years interval under two scenarios in the study area. Urban growth was larger under scenario 2, focusing on development, than under scenario 1, focusing on conservation. Most urban growth was predicted to involve the conversion of farmland, forest, and grasslands to urban areas. Streamflow in future periods under these scenarios was simulated by the Soil and Water Assessment Tool (SWAT) model. Each scenario showed distinct seasonal variations in streamflow. Although urban growth had a small effect on streamflow, urban growth may heighten the problems of increased seasonal variability in streamflow caused by other factor, such as climate change. This results obtained in this study provide further insight into the availability of future water resource and can aid in urban containment planning to mitigate the negative effects of urban growth in the study area.

Landsat 영상을 이용한 도시확장과 지표온도 변화 탐지 (Detection of urban expansion and surface temperature change using Landsat imagery)

  • 손홍규;곽은주;방수남;박완용
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2004년도 추계학술발표회 논문집
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    • pp.161-166
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    • 2004
  • Seoul has experienced a rapid urban expansion over the past three decades. This paper reports an investigation into the application of Landsat imagery for detecting urban growth and assessing its impact on surface temperature in the region. Land cover/use change detection w3s carried out by using Landsat data. The results revealed a notable urban growth in the study area. This urban expansion had raised surface radiant temperature in the urbanized area. The method using remote sensing data based on GIS was found to be effective in monitoring and analysing urban growth and in evaluating urbanization impact on surface temperature.

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RFID를 이용한 도시시설물 관리시스템 개발에 관한 연구 (A Study on the Development of Urban Facility Management System using RFID)

  • 최병길;한성만;이광원
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2007년도 춘계학술발표회 논문집
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    • pp.479-482
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    • 2007
  • The aimed to development general management system that can manage diverse facilities of city using RFID. Defining data format of items in each management, type and code for the urban facilities, the researcher designed database of urban facilities through the process of establishing logic model and data modelling. By inputting designed database into RFID Tag of each urban facilities and using RFID Reader and PDA, the researcher developed system that can efficiently manage the basic attributes and information and management information of urban facilities. Further, it was found that the characteristics of RFID Tag and GPS should improve the optimal hardware combination and PDA performance for the surrounding environmental influence and system performance.

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