• Title/Summary/Keyword: Geographic Information Science

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Development of coastal wetland inventory using Geographic Information System & Remote Sensing (지리정보체계와 원격탐사에 의한 연안습지목록 개발에 관하여)

  • Yi, Gi-Chul;Im, Byung-Sun;Woo, Chang-Ho;Yang, Hyo-Sik
    • Journal of Korean Society for Geospatial Information Science
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    • v.4 no.2 s.8
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    • pp.149-159
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    • 1996
  • It's required such information as location, size, distribution and abundance of wetlands as well as categorization of adjacent land-uses to manage effectively and to make wise planning decisions about resources of coastal area. Wetland inventory derived from the technology of Geographic Information System and remote sensing is inexpensive compared to the data based on conventional field data collection and cartographic methods. Furthermore, wetland inventory may prove to be useful references in the wetland management.

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Efficient Data Transmission Using Map Generalization On Cilent-side Web GIS

  • Liang, Chen;Lee, Chung-Ho;Wei, Zu-Kuan;Bae, Hae-Young
    • Proceedings of the Korean Information Science Society Conference
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    • 2000.10a
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    • pp.71-73
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    • 2000
  • Recently researches have been made on the client-side Web GIS, which can lessen the load of a server and provide users with intheractive geographic information. Howwever, the initial delay is the main drawback because of a high volume of geographic data and becausr the server does not associate spatial features with the map scale. Even when a complex spatial object is too small to be distinguished from a point by the naked eyes, it's complete data will be transmitted. This paper proposes a new effcient schema to reduce the response time and increase transmission effciency. Briefly speaking, "Transmit what can be seen" is the main idea. By exploiting the generalization algorithm, the proposed method allows the server to extract readable features from objects according to the display scale. Meanwhile, increasingly detailed map will be cached on the client. Therefore this method will contribute to the transmission efficiency of Web GISs.

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A Practical Approach to Spatial Object Indexing Using Minimum Bounding Rectangles (MBR을 이용한 실용적 공간 데이터 관리)

  • 이재호
    • Proceedings of the Korean Information Science Society Conference
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    • 1999.10a
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    • pp.177-179
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    • 1999
  • We present a simple and efficient spatial object indexing scheme based on the minimum bounding rectangles (MBR) of the objects for use in applications in geographic information system (GIS). We also provide the rationale behind the simple indexing scheme instead of other complex hierarchical indexing approaches such as the R-tree and its variants.

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Overview of NASA/JPL AIRSAR PACRIM2 Program (미국 NASA/JPL AIRSAR PACRIM 2 개요)

  • Suh, Ae-Sook;Song, Byung-Hyun;Kim, Kum-Lan
    • Journal of the Korean Association of Geographic Information Studies
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    • v.3 no.2
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    • pp.87-97
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    • 2000
  • Recently microwave remote sensing technology is widely used in Global environment study. Expecially Synthetic Aperture Radar sensing technique has many application to geographic information. Proposed AIRSAR Pacific Rim Deployment 2000(PACRIM2) is a NASA-sponsored science mission. AIRSAR is a test-bed instrument for new radar technologies in near future from space shuttle and satellite systems. In this paper the overview of PACRIM2 overview and sensors are introduced. Examples of processed data from new sensors are also shown.

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Geographic information system-based identification of suitable cultivation sites for wood-cultivated ginseng

  • Beon, Mu Sup;Park, Jun Ho;Kang, Hag Mo;Cho, Sung Jong;Kim, Hyun
    • Journal of Ginseng Research
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    • v.37 no.4
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    • pp.491-495
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    • 2013
  • Wood-cultivated ginseng, including roots in its dried form, is produced in forest land without using artificial facilities such as light barriers. To identify suitable sites for the propagation of wood-cultivated ginseng, factor combination technique (FCT) and linear combination technique (LCT) were used with geographic information system and the results were superimposed onto an actual wood-cultivated ginseng plantation. The LCT more extensively searched for suitable sites of cultivation than that by the FCT; further, the LCT probed wide areas considering the predominance of precipitous mountains in Korea. In addition, the LCT showed the much higher degree of overlap with the actual cultivation sites; therefore, the LCT more comprehensively reflects the cultivator's intention for site selection. On the other hand, the inclusion of additional factors for the selection of suitable cultivation sites and experts' opinions may enhance the effectiveness and accuracy of the LCT for site application.

A Study on the Metadata Authority Description Schema for the Interoperability of Authority Data (MADS를 기반으로 한 전거데이터 상호운용성에 관한 연구)

  • Lee, Hyewon
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.23 no.4
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    • pp.25-44
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    • 2012
  • This study analyzed the current condition of authority control, introduced the MADS(Metadata Authority Description Schema) for authority data. MADS supports encoding an authority description for a agent(person, organization), event, term(topic, temporal entity, genre, geographic entity, hierarchical geographic entity, occupation) and defines main elements, subelements, and attributes using the XML schema language. Lastly, using the MADS's characteristics, this study proposed the effective use plans of interoperability of authority data.

A study on the environmentally sustainable planning techniques with the satellite data (위성자료를 이용한 환경보전적 계획기법에 관한 연구)

  • Song, In-Sung;Moon, Byung-Chae
    • Journal of Korean Society for Geospatial Information Science
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    • v.5 no.1 s.9
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    • pp.93-101
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    • 1997
  • The purpose of this paper is to study the using method of the satellite image processing and GIS(Geographic Information System) map-algebra for the sustainable (land-use) plan. The research has been made by the two kinds of approaching steps. The first one is to allocate the sustainable zoning which is applicable to the environmental and the legal restriction elements base on space structure. The second one is to make a more sustainable plan through the extension of analysis range and the inclusion of analyzed environmental impacts within the plan making processes.

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Landscape Scale Ecosystem Evaluation for Sustainable Landuse Planning (지속가능한 토지이용을 위한 경관규모 생태계평가기법 연구)

  • Hwang, Kook-Woong;Park, So-Yoon
    • Journal of the Korean Association of Geographic Information Studies
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    • v.6 no.1
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    • pp.78-84
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    • 2003
  • The purpose of this study is to evaluate the ecosystem soundness in landscape scale using landscape indices, and to extract regional information that can be used for sustainable landuse planning. About BongWha-gun, the landcover classification using Landsat TM images and patch analysis ware carried out, and some landscape indices were calculated using geographic information system(GIS) and patch analyst program. As the results of this study, Seokpo, Jaesan and Sochun got higher scores in landscape indices related to the ecosystem soundness. But, Bonghwa-eup got lowest scores in the 10 regions. When compared with normalized difference vegetation index(NDVI), this result showed consistency to some degree. Although, there needs more supplementary studies, it is anticipated that landscape scale ecosystem evaluation using landscape indices can gives us some informations related to sustainable landuse planning.

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A Study of Revision of the History Class(900) for the KDC 6th Edition (한국십진분류법 역사(900) 분야 개정에 대한 연구)

  • Kwak, Chul-Wan
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.20 no.3
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    • pp.149-161
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    • 2009
  • The purpose of this study is to investigate and analyse the revised contents of the history class in the Korean Decimal Classification(KDC), 5th edition, and then identify problems and propose the revised contents for the KDC, 6the edition. Major analysed areas are divided into four. First, geographic area table is discussed. It includes extension of the geographic area table, emphasis of hierarchical structure in the geographical area, revision of North Korean geographical names, extension of subgeographical structure of major nations in the world, and revision of nations in the central and west Asia. Second, Korean time period is extended. Third, the notes of entries of the Chinese and Japanese history areas are shorten. Fourth, the geographical and personal names are changed their native pronunciation, specially Chinese and Japanese. For the revision of the KDC, 6th edition, four areas are discussed: first, Korean geographic areas would be categorized by broaden area, second, the areas are arranged from the capital of the nation to others, third, foreign geographical names would be used their native names, and last, time period would be categorized by years.

A Study on Circulation and Management of Spatial Data (공간정보 유통 및 관리에 관한 연구)

  • Cho, Hae-Gyung;Kim, Young-Sup;Kim, Sang-Eun
    • Journal of the Korean Association of Geographic Information Studies
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    • v.1 no.1
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    • pp.28-38
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    • 1998
  • This paper describes difficulties for the producer's distribution and the user's acquisition of the spatial data because the circulation of them is complicated according to its kind in Korea. The way to overcome these difficulties would be to develop the clearing house system to incorporate GIS technology on Internet. This research proposes the problem statement, the architecture, and the operating environment of the system. The system contains the functions such as metadata generation, metadata registration, metadata version management, catalogue creation and update, reports generation, forms processing, metadata search, payments, GIS information pool, and spatial data browsing.