• 제목/요약/키워드: remote sensing and GIS

검색결과 725건 처리시간 0.028초

녹피율 훼손추세 평가를 통한 총량규제 근거자료 학보방안 (Acquisition of Evidential Information to Control Total Volume in accordance with Degradation Trends of Green Space)

  • 엄정섭
    • Spatial Information Research
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    • 제14권3호
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    • pp.299-319
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    • 2006
  • 본 연구는 위성 영상을 이용한 녹지 조사의 결과를 지도화하고 다양한 시기의 녹지변화 실태를 통합한 데이터베이스를 구축하여 그 결과를 토대로 GIS의 공간 객체 재정의 기법을 이용하여 녹지의 총량규제를 위한 기초자료를 확보할 수 있는 지의 가능성을 탐색하고자 출발하였다. 그리하여 사례 연구지역의 녹지 변화 추세에 대한 평가가 이루어졌고 규제 총량을 산정하는 과정에서 활용 방안이 제시되었다. 아울러 공간 객체 재정의를 통한 총량 규제 기초자료를 확보하는 데 있어 고려해야 할 기술적인 문제들과 더불어 실무에 도입시 고려하여야 할 핵심 사안(토지 모자이크의 분류, 녹피을 훼손 추세의 평가 등)에 대한 지침을 제시하였다. 기존에 조사지점에만 국한된 통계 수치정보가 광역적인 녹지 공간 변화 추이를 시각적으로 제시하는 데 많은 한계가 있었으나 공간 객체 재정의 기법의 활용을 통해 녹지의 규제 총량 결정과정의 설득력 확보에 기여할 수 있을 것으로 판단되었다. 본 연구가 녹지 보전에 있어 객관적인 데이터에 의거한 정책결정이 아닌 직관에 의존하여 왔던 관행을 개선될 수 있는 계기가 되어 향후 녹지보전관련 기술적인 측면이나 정책적인 측면에서 중요한 참고 자료가 될 수 있을 것으로 사료된다.

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원격탐사자료의 환경영향평가 활용을 위한 기초연구 (Preliminary Study for an Application to Environmental Impact Assessment of Remote Sensing Data)

  • 문현생;김명진;강인구;방규철
    • 환경영향평가
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    • 제4권1호
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    • pp.59-64
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    • 1995
  • Environmental Impact Assesment(EIA) is composed of various procedures, such as screening, scoping, inventory survey, prediction, assessment, mitigation measure, alternative assessment, and post management. Remote sensing introduced lately begins to be applied ecosystem and land use in inventory survey and assessment of EIA. This study explains on land use classification, buffering analysis of residential area, and overlaying analysis of odor predictive data with residential area for application to EIA with remote sensing data. Residential area extracted from land use classification of remote sensing provides effectively buffering analysis of residential area in selection of landfill site with GIS. It could assess also residential effect to an offensive odor by overlaying analysis. Application methods in EIA should be enlarged to assess effectively.

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인공위성자료를 이용한 환경영향평가 : 토지이용 변화를 중심으로 (Environmental Impact Assessment Using Remote Sensing Data : the Land Use Change)

  • 문현생;김명진;한의정;이재운;방규철;이희선
    • 환경영향평가
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    • 제4권2호
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    • pp.23-28
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    • 1995
  • Remote sensing begins to be applied in Environmental Impact Assessment(EIA), and it can systematically assess land use which is an important factor in EIA. This study is to predict land use change of Ulsan region and to assess impact on land use using the past and the present data of remote sensing. Also we analyzed an impact area influenced by EIA projects through the integration of remote sensing and GIS. This technique will be applied to the screening stage in EIA.

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A Study on the Inter-Korean Cooperation for Natural Disaster Damage Reduction Using Spatial Information

  • Lee, Sunmin;Song, Taejung;Lee, Moung-Jin
    • 대한원격탐사학회지
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    • 제35권1호
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    • pp.163-177
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    • 2019
  • As inter-Korean relations progress, the issue of natural disasters which could directly affect the lives of the people in both Koreas, has not yet been discussed. Considering the current status of inter-Korean relations and the ongoing disaster-related damage in North Korea, it is imperative to establish a technical plan at the pan-governmental level to reduce the damage from natural disasters. The purpose of this study is to secure the Korea Peninsula against natural disasters by organizing South Korea's science and technologies related to natural disasters in order to reduce the damage, and to evaluate the applicability of said technologies. The situation of natural disasters in North Korea for 17 years has been summarized and reclassified based on eight types of natural disasters. Technologies related to natural disasters in South Korea were also investigated and reclassified. Based on the data, a priority evaluation was performed and the prioritization of technology application for each natural disaster type in North Korea was calculated through a quadrant analysis. As a result, the three major categories of high-priority technologies were classified as natural disaster monitoring with remote sensing and spatial information technology, construction of research basis and database based on geographic information system (GIS) and integrated management of complex natural disasters.

Landslide Susceptibility Analysis of Clicap, Indonesia

  • Kim, I. J.;Lee, S.;Choi, J. W.;Soedradjat, Gatot Moch
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.141-143
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    • 2003
  • The aim of this study is to evaluate the susceptibility of landslides at Clicap area, Indonesia , using a Geographic Information System (GIS). Landslide locations were identified from field surveys. The topographic and geological map were collected and constructed into a spatial database using GIS. The factors that influence landslide occurrence, such as slope, aspect and curvature of topography, were calculated from the topographic database and lihology and fault was extracted from the geological database. Then landslide susceptibility was analyzed using the landslide-occurrence factors by likelihood methods. The results of the analysis were verified using the landslide location data. The GIS was used to analyze the vast amount of data efficiently . The results can be used to reduce associated hazards, and to plan land use and construction.

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Identify the Risk Factors in Dengue Haemorrhagic Fever (DHF) using GIS

  • Nakhapakornc, Kanchana;Tripathi, Nitin;Nualchawee, Kaew;Kusanagi, Michiro;Pakpien, Preeda
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.93-95
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    • 2003
  • Vector-borne diseases have been the most important worldwide health problem for many years and still represent a constant and serious risk to a large part of the world’s population. GIS and RS is used to evaluate and model the relationships between environmental factors/indicators and the incidences of viral diseases. The aim of the study is to identify the risk factors in Dengue Haemorrhagic Fever DHF) from the highest prevalence area and lowest prevalence area in Sukhothai province, Thailand using statistical, spatial and GIS Modeling. Results obtained in the study of the Dengue show that it is now possible to identify and localize precisely environmental indicators and factors of viral diseases.

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Virtual Reality and Internet GIS for Highway Simulation Based on the ASE

  • Choi Hyun
    • 대한원격탐사학회지
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    • 제21권5호
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    • pp.433-443
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    • 2005
  • This paper show that, without installation of expensive VR (Virtual Reality) program, the sharing information is possible through posting three-dimensional road structures on the web, and avoiding the conventional top-down decision making method, fast bottom-up communication is possible base on the Virtual GIS (Geographic Information System). In this paper, using Viewpoint Scene Builder, internet-based software, the transformation was conducted to give pertinent type for web posting. In order to use the completed route at the scene builder, the output with ASCII Export is required, and ASE (ASCII Scene Export) contains the property information including the coordinate and frame of mesh vertex. Through in advance recognition of the problems regarding route design and petition due to environmental rights infringement, the time and cost due to design alteration can be reduced. It's difficult to provide VR based on the internet because file that embodied with internet GIS was complicated and its capacity comes to scores of mega-bites. But, this study provides VR with internet according to a basis by simplification of files.

Research on the relationship between the thermal characteristics and the type of land cover in Beijing urban area by ASTER data

  • Zhu, QiJiang;Zhang, Xin;Bai, Xianghua
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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    • pp.277-279
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    • 2003
  • The study utilizes remote sensing as the main monitoring means. With different spatial high-resolution, multichannel ASTER remote sensing image as the main information in Beijing city zone; with regional border and statistical data as auxiliary factor a study between the thermal space distribution character and the underground medium is analyzed based on the GIS logical algorithm and synthetic analysis technology. Results show thermal forming mechanism and the rule of distribution is mainly related to the underground medium and the change of the city distribution. Different underground medium has different degree and intensity influence on the thermal space distribution. Furthermore, urban greenbelt and water areas can reduce the thermal effect and large-scale greenbelt creates green island effect. In addition, Road net, residential area, population density, heat resources and so on have some positive effect on the thermal distribution, which increase the local temperature and intensity on the other hand. It is important to study the thermal distribution and its related factors, which contributes to the plan, construction and development of the city.

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GIS 및 RS를 이용한 자료 구축 및 농촌 어메니티 가치 평가 모델의 적용 (Application of Rural Amenity Values Assessment Model by Survey and Analysis using GIS and RS)

  • 배승종;정하우
    • 한국농공학회논문집
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    • 제49권5호
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    • pp.45-54
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    • 2007
  • The purpose of this paper is to test the applicability of the rural amenity values assessment model(RAVAM) to a case study area. To verify the practical applicabilities of the RAVAM, south-east area of Kyounggi province was selected as a study area. Full data of 101 Myuns of Kyounggi province were gathered with Geographic In-formation System(GIS) and Remote Sensing(RS) techniques. All the 101 Myuns' rural amenity resources were assessed. Cluster analysis was performed on almost intact nature, interaction between nature and man, man-made amenity values to classify rural amenity characteristics. It was expected that the proposed RAVAM could be used in developing rural development plans considering local rural amenity resources' distribution.

Dynamic Changes of Newly formed Wetlands in the Yellow River Mouth Based on GIS and Remote Sensing

  • Zhao, Gengxing;Shi, Yanxi;Chen, Weifeng;Li, Jing;Ann, Seoung-won;Kim, Young-chil;Jung, Jea-hoon;Chae, Soo-Cheon
    • 한국환경과학회지
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    • 제12권2호
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    • pp.133-137
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    • 2003
  • The Yellow River delta is an important region where coastal and newly formed wetlands distribute in north China. Based on satellite remote sensing images and GIS techniques, this paper tends to delineate the dynamic changes of newly formed wetland in the Yellow River mouth from 1986.5 to 1996.10. Our results show that the newly formed wetland increased by 24.9 $\textrm{km}^2$ per year. Before 1990. 1 and it decreased by 2.40 $\textrm{km}^2$ per year after that. The northern and southwestern parts of the Yellow River mouth are main positions of decrease and the southern and the estuary parts are main positions of increase. The advancing rate of river mouth extending into the Bo Sea is decreasing obviously. The reason for that is the decreasing of water and sediments in the Yellow River, which caused by the increasing use of water and soil conservation on upper reach.