• Title/Summary/Keyword: GIS Application

Search Result 1,118, Processing Time 0.026 seconds

A Study on Present Condition and Policy Direction of GIS Education (GIS 전문인력 양성실태 및 정책방향 연구)

  • Sakong, Ho-Sang;Im, Jungho
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.5 no.4
    • /
    • pp.35-44
    • /
    • 2002
  • Although GIS technology has been developed rapidly, the education system for GIS technology and its utilization has not been well facilitated in our society. Consequently, the economic value in GIS application system is not estimated properly in the public sector. On the other hand, industries currently suffer lack of technocrats or researchers to develop GIS. In addition, the demand for GIS education on its concept and know-how has increased drastically as GIS analytic technology has come to be applied to more varified fields. Under these circumstances, this study researched and analyzed the current state of GIS education in the public, private and academic sectors in Korea. Furthermore, it recommended improving the educational environment for GIS experts training based on the results of the questionnaire used in the survey. Most of all, the national investment should be conducted systematically in order to improve quality of education in the public, private and academic sectors.

  • PDF

On Mathematical Representation and Integration Theory for GIS Application of Remote Sensing and Geological Data

  • Moon, Woo-Il M.
    • Korean Journal of Remote Sensing
    • /
    • v.10 no.2
    • /
    • pp.37-48
    • /
    • 1994
  • In spatial information processing, particularly in non-renewable resource exploration, the spatial data sets, including remote sensing, geophysical and geochemical data, have to be geocoded onto a reference map and integrated for the final analysis and interpretation. Application of a computer based GIS(Geographical Information System of Geological Information System) at some point of the spatial data integration/fusion processing is now a logical and essential step. It should, however, be pointed out that the basic concepts of the GIS based spatial data fusion were developed with insufficient mathematical understanding of spatial characteristics or quantitative modeling framwork of the data. Furthermore many remote sensing and geological data sets, available for many exploration projects, are spatially incomplete in coverage and interduce spatially uneven information distribution. In addition, spectral information of many spatial data sets is often imprecise due to digital rescaling. Direct applications of GIS systems to spatial data fusion can therefore result in seriously erroneous final results. To resolve this problem, some of the important mathematical information representation techniques are briefly reviewed and discussed in this paper with condideration of spatial and spectral characteristics of the common remote sensing and exploration data. They include the basic probabilistic approach, the evidential belief function approach (Dempster-Shafer method) and the fuzzy logic approach. Even though the basic concepts of these three approaches are different, proper application of the techniques and careful interpretation of the final results are expected to yield acceptable conclusions in cach case. Actual tests with real data (Moon, 1990a; An etal., 1991, 1992, 1993) have shown that implementation and application of the methods discussed in this paper consistently provide more accurate final results than most direct applications of GIS techniques.

The Study of Strategies for acquisition of moving object location

  • Min, Kyoung-Wook;Jang, In-Seung;Park, Jong-Hyun
    • Proceedings of the KSRS Conference
    • /
    • 2002.10a
    • /
    • pp.111-116
    • /
    • 2002
  • The types of service using location Information are being various and extending it's domain as wireless internet technology is developing and it's application part is widespread, so it is prospected that LBS (Location-Based Services) will be killer application in wireless internet services. This location information is basic and high value-added information, and this information services make prior GIS (Geography Information System) to be useful to anybody. The acquisition of this location information from moving object is very important part for these LBS. After this, when LBS is familiar to everybody, we can predict that LBS system load is so heavy for the acquisition of so many subscribers and vehicles. Moving object database (MODB) system manages objects like subscribes and vehicles that are moving and have telecommunication terminal checked one's location. MODB is consists of 4 part, moving object location acquisition part, moving object location storage part, moving object query processing part, and moving object application p art. In this MODB system, acquisition of moving object location part must provide guarantee location information as well as reduce telecommunication overhead. In this paper, we study of problems in acquisition a huge number o f moving objects location and design some acquisition strategies to reduce telecommunication overhead. And after implementation these strategies, we estimate performance of this system and quality of information.

  • PDF

A Study on the value decision and the application method of USLE factors for the soil loss estimation in the large scale site development area using GIS-In the Case of BuJu Mountain in MokPo City- (GIS를 이용한 대규모 단지 개발지의 토양유실량 추정을 위한 USLE의 인지값 결정과 적용 방법에 관한 연구-목포시 부주산을 대상으로-)

  • 우창호;황국웅
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.24 no.3
    • /
    • pp.115-132
    • /
    • 1996
  • The purpose of this study is to estimate the soil loss amount with Geographic Information System according to the land use change of Buju mountain area in Mokpo city. To estimate the soil loss, Universal Soil Loss Equation which is the most proper technique to predict soil loss in this site condition is adopted and IDRISI, a raster GIS software, is used. GIS application with USLE is very efficient to estimate soil loss accurately and fastly. In order to decide value and to find application method of USLE factors, we used existing rainfall erosion index, soil erodibility analysis, slope length, slope steepness, vegetation management and practices, which are rated by GIS through the analysis of various studies related USLE. The result of this study was compared with the previous other researches to verify our method of constructing numerical data of USLE's factors. The result of verification of our way showed significance for the soil loss in forest area. But the result of verification for the soil loss in forest area. But the result of verification for the soil loss of cultivated area showed some errors. It seems that this result was due to local variation of topographical map.

  • PDF

GIS-based Tunnelling-induced Building/Utility Damage Assessment System-Development and Application (GIS기반의 터널시공에 따른 주변건물/매설관 손상평가 시스템-개발 및 적용)

  • 유충식;전영우;김재훈;박영진;유정훈
    • Proceedings of the Korean Geotechical Society Conference
    • /
    • 2003.03a
    • /
    • pp.233-240
    • /
    • 2003
  • A GIS-based tunnelling risk management system (GIS-TURIMS) has been developed in this study The developed system uses ArcView 8.2 as a basic platform and the built-in interface(VBA) has been used to perform first-order simplified analyses for prediction of tunnelling-induced ground movements and building damage assessment. The main emphasis in this study was to develop a working framework that can be used in the perspective of tunnelling risk management. The developed system is capable of carrying out computationally intensive first-order analyses for ground movement prediction as well as building/utilities damage assessment with fully taking advantage of the GIS technologies. This paper describes the concept and details of the GIS-TURIMS development and implementation.

  • PDF

Actual Conditions of GIS Application and Administration in Local Authority (지자체 GIS 활용 및 운용실태 조사연구)

  • SaKong, Ho-Sang;Min, Sook-Ju
    • 한국공간정보시스템학회:학술대회논문집
    • /
    • 2005.11a
    • /
    • pp.175-183
    • /
    • 2005
  • 1995년부터 시작된 국가GIS 구축사업은 초기에는 공간정보기반을 확충하기 위하여 주로 중앙부처와 공공기관을 중심으로 추진되어 왔으나, 앞으로는 행정업무와 대민서비스를 수행하는 기초자치단체를 중심으로 추진될 것으로 전망된다. 그 이유는 지자체의 행정 업무시스템을 통해서 생산 관리 갱신된 지리정보 데이터가 중앙부처로 연계되어 활용될 것이기 때문이다. 이 연구에서는 향후 중요도가 높아질 것으로 예상되는 지자체 GIS정책 수립을 위해 지자체의 GIS 활용 및 운용실태를 조사하였다. 그 결과 지자체별로 GIS활용의 정도와 수준 차이가 매우 크게 나타났으며, 환경도 아직은 열악한 것으로 분석되었다. 특히 재정자립도가 낮은 지자체의 GIS구축 및 활용수준을 높일 수 있는 대책과 함께 지자체간 정보격차를 줄여갈 방안이 시급한 실정이다.

  • PDF

A Study on the Applications using Open GIS Component

  • Kim, Kwang-Soo;Choi, Hae-Ock
    • Proceedings of the KSRS Conference
    • /
    • 2002.10a
    • /
    • pp.850-853
    • /
    • 2002
  • This paper described some applications using Open GIS Component that was called MapBase. There were 4 applications : KSDI(Korea Spatial Data Infrastructure) funded by MOIC(Ministry of Information and Communication), National Plants Resource Management System supported by Korea Forest Service, 7-Underground Facilities Management System of Cheongju funded by MOCT(Ministry of Construction and Transportation), and National Disaster Management System supported by MOGAHA(Ministry of Government Administration and Home Affairs. Because they wanted to access heterogeneous spatial database, it was necessary to select MapBase as their base methodology. The main feature of MapBase was component S/W which provided the interoperability and reusability among GIS applications as well as non-GIS information system through common specification. In this paper, we showed some applications' architectures and functions to increase understanding MapBase. That would help you to make application using MapBase.

  • PDF

A study on constructing GIS component repository on web using registration/retrieval agents

  • Jo, Myung-Hee;Jo, Yun-Won;Bu, Ki-Dong
    • Proceedings of the KSRS Conference
    • /
    • 2003.11a
    • /
    • pp.949-951
    • /
    • 2003
  • To improve the reusability and interoperability of GIS components, we propose the registration/retrieval agents, which can search the locating of users' frequently used components in not only the GIS domain but also other spatial information technologies such as GPS, ITS, RS and FM. The registration/retrieval agents increase the reusability through the GIS component based development under distributed GIS components environment and enables the rapid setting of application on the web. Moreover, users can understand easily the information of GIS component and have the effective investment, timeliness and reliability while they have less maintenance effort by agent. In order to design and implement this system on web, HTML and ASP (Active Serve Page), and JAVA were used. In addition, the performance of this system was verified through comparing others, which are similar to.

  • PDF

A Study of the GIS Education in the Geography Education : In the Case of USA (미국 지리교육에서의 GIS교육 현황)

  • Kim, Chang-Hwan
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.8 no.4
    • /
    • pp.176-190
    • /
    • 2005
  • The purpose of this paper is to examine trends of the GIS education in the school's education of the USA, especially the geography education, which the application of GIS is activated in the life. In addition, in this paper are explored possibilities of GIS education in the geographical education of Korea throughout the consideration of the USA case. There are some backgrounds of the activation of GIS education in the USA, They can be characterized as (1) the achievement of the validity between the geographical importance in the realm of the national policy and GIS education, (2) offering standard indications for GIS education and gradually minimizing school teachers' work-loads, (3)the establishment of the network of GIS stake-holders and their cooperation, (4) the attraction of school students through case study-centered education, and (5) the share of GIS education-related information. These shall be considered to introduce actively GIS education into the geography education in Korea.

  • PDF

Causual Analysis on Motivation and Satisfaction of Appling GIS for Social-Science Research (사회과학연구에서 GIS 활용 동기와 만족의 인과분석)

  • Choe, Byong Nam;Han, Seon Hee;Jin, Heui Chae
    • Spatial Information Research
    • /
    • v.22 no.6
    • /
    • pp.1-11
    • /
    • 2014
  • It is possible to design a strategy for expanding the applications of GIS by identifying why social science researchers use GIS. This study analyses motivating factors for the researchers to utilize GIS and their satisfying factors towards the result. It is based on survey results which was answered by social science researchers at national research institutes and local governmental research institutes in South Korea in the perspective of merits of applying GIS, level of GIS usability and experienced effectiveness of applying GIS. Analysis result reveals that motivating factors to researchers applying GIS are correlated with efficiency in their research and satisfying factors are correlated to the usability. Then, we induced a fact that motivative factors for applying GIS is not related to the satisfaction of that. It may be a reason which researchers use GIS less applying in social science fields. As a result, it is necessary to connect the motivating and satisfying factors to further expand GIS applications.