• Title/Summary/Keyword: GIS data

Search Result 3,375, Processing Time 0.027 seconds

Landslide data base system using GIS technology (산사태 데이타베이스 시스템의 GIS이용)

  • 구호본;구재동
    • Spatial Information Research
    • /
    • v.3 no.1
    • /
    • pp.81-90
    • /
    • 1995
  • Landslide data base system is necessitated to make a mid-long term master plan to prevent landslide from past landslide data and their statistical analysis. This paper emphasis on application of the efficient management system of GIS to reduce landslide disasters basis on the result of survey analysis of landslide problems. In this paper explains landslide data base system by the cause of landslide from past landslide data & application of GIS to it.

  • PDF

Developing a Hybrid Web-based GIS for Improving Access to Distributed Spatial Data and Spatial Modeling Tools (분산형 공간모델링을 구현하기 위한 하이브리드형 웹기반 GIS의 개발)

  • Jun, Byong-Woon;Park, Chan-Suk;Jo, Myung-Hee
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.3 no.2
    • /
    • pp.61-72
    • /
    • 2000
  • The maturation of the Web technology has reshaped the ways in which data are accessed, disseminated, and shared. Thanks to its popularity along with the advance of spatial information technology, four major changes have been further made in traditional geographic information systems (GIS) in relation to access to data, distribution of data, access to GIS functionality, and visualization of multimedia data. Although access to and dissemination of spatial data over the Web has in recent years been addressed in the literature, little research effort has addressed the issue of access to and processing of GIS analysis functions over the Web. This research explores the potential use of Web-based GIS in improving accessibility to distributed spatial data and spatial modeling tools. A prototype Web-based GIS developed in this study focuses on Web-based location-allocation modeling for spatial decision support, and employs a hybrid approach that uses the Arc/Info software as a GIS server and CGM viewer as a client-side plug-in. This research shows that Web-based GIS is a useful vehicle in conducting spatial modeling in the particular user community. In addition, this study represents the possibility of Web-based GIS in developing open spatial decision supporting systems.

  • PDF

Analysis of 3D Data Structuring and Processing Techniques for 3D GIS (3D GIS를 위한 3차원 구조화 및 처리기술 분석)

  • 구흥대;정동기;유환희
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
    • /
    • 2004.04a
    • /
    • pp.375-382
    • /
    • 2004
  • Lately, 3D GIS begins to be widely used in many application fields. In this research, we proposed a survey and analysis result of research trends for 3D GIS technologies-acquisition of 3D spatial data, 3D features structuring, 3D visualization, data query, and transmission etc. The result is expected to give the helpful information for constructing research road-map on development of 3D GIS technologies.

  • PDF

The GIS Technology Application for the Forest and Grassland Fire Monitoring by Using Meteorological Satellite Data

  • Zhe, Xu;Cheng, Liu
    • Proceedings of the KSRS Conference
    • /
    • 2003.11a
    • /
    • pp.1295-1297
    • /
    • 2003
  • Owing to the higher temporal resolution, meteorological satellite data is widely used to monitor the disasters happened on the earth's surface. However, the precision of identifying disaster information is limited by the poor spatial resolution. As known, GIS technology is good at processing and analyzing the geographic information. The result shows, integrating with GIS technology, the ability of monitoring forest fire using meteorological satellite data has been greatly improved.

  • PDF

Construction of Street Trees Information Management Program Using GIS and Database (GIS와 데이터베이스를 이용한 가로수정보 관리프로그램 구축)

  • Kim, Hee-Nyeon;Jung, Sung-Gwan;Park, Kyung-Hun;You, Ju-Han
    • Current Research on Agriculture and Life Sciences
    • /
    • v.26
    • /
    • pp.45-54
    • /
    • 2008
  • The purpose of this research is to develope street trees management program for more an effective street trees management. The principal point of this program is to relate spatial data and attribute data that is the main concept in GIS(Geographic Information System). To do this function, MapObjects which is ESRI's mapping and GIS components was used to process spatial data and Access which had been developed by MS was used to manipulate attribute data in this program. Visual Basic also was used to design and develop user interfaces and procedures, relate two sort of data, and lastly complete Application. Relational data model was adopted to design tables and their relation, Antenucci's GIS development model was selected to design and complete this program. The configuration of this application is composed of management data and reference data. The management data includes the location of street tree, a growth condition, a surrounding environment, the characters of tree, an equipments, a management records and etc. The reference data include general information about tree, blight and insects.

  • PDF

Managing and Modeling Strategy of Geo-features in Web-based 3D GIS

  • Kim, Kyong-Ho;Choe, Seung-Keol;Lee, Jong-Hun;Yang, Young-Kyu
    • Proceedings of the KSRS Conference
    • /
    • 1999.11a
    • /
    • pp.75-79
    • /
    • 1999
  • Geo-features play a key role in object-oriented or feature-based geo-processing system. So the strategy for how-to-model and how-to-manage the geo-features builds the main architecture of the entire system and also supports the efficiency and functionality of the system. Unlike the conventional 2D geo-processing system, geo-features in 3B GIS have lots to be considered to model regarding the efficient manipulation and analysis and visualization. When the system is running on the Web, it should also be considered that how to leverage the level of detail and the level of automation of modeling in addition to the support for client side data interoperability. We built a set of 3D geo-features, and each geo-feature contains a set of aspatial data and 3D geo-primitives. The 3D geo-primitives contain the fundamental modeling data such as the height of building and the burial depth of gas pipeline. We separated the additional modeling data on the geometry and appearance of the model from the fundamental modeling data to make the table in database more concise and to allow the users more freedom to represent the geo-object. To get the users to build and exchange their own data, we devised a file format called VGFF 2.0 which stands for Virtual GIS File Format. It is to describe the three dimensional geo-information in XML(eXtensible Markup Language). The DTD(Document Type Definition) of VGFF 2.0 is parsed using the DOM(Document Object Model). We also developed the authoring tools for. users can make their own 3D geo-features and model and save the data to VGFF 2.0 format. We are now expecting the VGFF 2.0 evolve to the 3D version of SVG(Scalable Vector Graphics) especially for 3D GIS on the Web.

  • PDF

Managing Scheme for 3-dimensional Geo-features using XML

  • Kim, Kyong-Ho;Choe, Seung-Keol;Lee, Jong-Hun;Yang, Young-Kyu
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
    • /
    • 1999.12a
    • /
    • pp.47-51
    • /
    • 1999
  • Geo-features play a key role in object-oriented or feature-based geo-processing system. So the strategy for how-to-model and how-to-manage the geo-features builds the main architecture of the entire system and also supports the efficiency and functionality of the system. Unlike the conventional 2D geo-processing system, geo-features in 3D GIS have lots to be considered to model regarding the efficient manipulation and analysis and visualization. When the system is running on the Web, it should also be considered that how to leverage the level of detail and the level of automation of modeling in addition to the support for client side data interoperability. We built a set of 3D geo-features, and each geo-feature contains a set of aspatial data and 3D geo-primitives. The 3D geo-primitives contain the fundamental modeling data such as the height of building and the burial depth of gas pipeline. We separated the additional modeling data on the geometry and appearance of the model from the fundamental modeling data to make the table in database more concise and to allow the users more freedom to represent the geo-object. To get the users to build and exchange their own data, we devised a fie format called VGFF 2.0 which stands for Virtual GIS File Format. It is to describe the three dimensional geo-information in XML(extensible Markup Language). The DTD(Document Type Definition) of VGFF 2.0 is parsed using the DOM(Document Object Model). We also developed the authoring tools for users can make their own 3D geo-features and model and save the data to VGFF 2.0 format. We are now expecting the VGFF 2.0 evolve to the 3D version of SVG(Scalable Vector Graphics) especially for 3D GIS on the Web.

  • PDF

GIS Application to Urban Hydrogeological Analysis of Groundwater System in Seoul Area (서울지역 지하수시스템의 수문지질학적 특성 분석을 위한 지리정보시스템의 활용)

  • 김윤영;이강근
    • Spatial Information Research
    • /
    • v.7 no.1
    • /
    • pp.103-117
    • /
    • 1999
  • During the last several years, the geographic information system(GIS) technology has emerged as a very effective tool for analyzing complicated groundwater system Linking GIS to spatially distributed hydrogeological data and groundwater models offers many advantages in the analysis of urban groundwater system. This paper describes the urban hydrogeological application of GIS in Seoul area. This study constructs an urban hydrogeological database via pre- and post-processing of various types of urban hydrogeological data, such as groundwater-level fluctuation, topogaphic data, water chemistry data, subway pimping station data, tidal effect of the Han River, and hydrogeological parameters. A hydrogeological model has been designed to enable importing data from the database and providing the model output for the repetitive manipulation and display in GIS.

  • PDF

The study related to the meta data for the attribute mapping from IFC to CityGML (IFC에서 CityGML로 속성 맵핑을 위한 메타 데이터에 관한 연구)

  • Kang, Tae Wook;Choi, Hyun Sang;Hwang, Jung Rae;Hong, Chang Hee
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
    • /
    • v.30 no.6_1
    • /
    • pp.559-565
    • /
    • 2012
  • The purpose of the present study is to suggest the meta data of the attribute mapping for interoperability from IFC to CityGML. For this, we analyzed the interoperability issue including the neutral information model structure such as IFC, CityGML. To solve the interoperability problem between IFC and CityGML model which is the neutral GIS format, We proposed the meta data including the mapping rule. The meta data is consists of the connection information between BIM and GIS model, the mapping rule based on the perspective of the use-case, the operator and the attribute. By using this, XML to represent the meta data is defined and the information mapping system is developed.

A Study on Integrated Utilization of Urban Spatial Data and Building Data for CO2 Reduction (도시단위 건축물 CO2 저감을 위한 데이터 통합 활용 기반기술에 관한 연구)

  • Choi, Hyemi;Park, Chang-Han;Kim, Ju-Hyung;Kim, Jae-Jun
    • Journal of KIBIM
    • /
    • v.5 no.3
    • /
    • pp.1-10
    • /
    • 2015
  • We have researched a character of BIM(Building Information Modeling) and GIS(Geographic Information System) data for integrated utilization of urban spatial data and building data for $CO_2$ reduction. We consider literature on integrated utilization of BIM and GIS and measure method of $CO_2$ in urban spatial unit. Among them without distortion of standard data structure, derive method how to install between BIM and GIS standard data. Rhino & Grasshopper is utilization tools of DB platform. The compatibility with existing BIM and GIS data format, graphic and numeric results can be output at the same time. And using the existing ARCHSIM, it can be easily combined for building energy analysis program. Based on BIM and GIS data to run an energy analysis target on Majang-dong, it could be poly synthetically derived the value information and graphic information.