• 한국측량학회:학술대회논문집
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• 한국측량학회 2002년도 창립 20주년기념 국제학술대회
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• pp.17-24
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• 2002

Mechanization is the characteristic of the industrial era and computerization is the characteristic of the Information Era. Now we are facing on the transition from Industrial Era to information Era. Established the National Geo-spatial Data Infrastructures is the fundamental base for information society and is one part of the national basic economic development plan. From 1980's China started his successful transition from traditional methods to high-tech based mapping. China has laid out a high accuracy national GPS (global Positioning System) network, and completed the geographic information databases for scale of 1:1million and 1:250,000. Now it is working on the databases for scales of 1:50,000 and 1:10,000, the world highest level. The massive national programmed has been dubbed "Digital China," since it involves massive quantities of digitized geographical information. Simultaneity, GIS technology and the geo-spatial data have been used widely in electronic government affair, environmental protection, disaster control, ITS and etc. The users have realized the benefits more and more widely. Internet is an efficient way to distribute the geo-information, the State Bureau of Surveying and Mapping has give great effort to settle down the rules and standards to establish the clearing house. Some National Geo-standards have issued, and some of them are on the way. The GIS software is another important factor in the GIS industry. Chinese government working-out some good policy to supports the GIS software developer to have their own copyright. This paper is based on the above to introduce the status and development of Geomatics in China. in China.

• 한국수자원학회논문집
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• 제39권1호
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• pp.23-33
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• 2006

본 연구에서는 국내에서 발생했던 산사태에 대한 사례연구를 통하여 GIS 기반의 산사태 예측모형 SINMAP의 적용성을 검토하였다. 사례연구의 대상지역은 서울에서 남쪽으로 78km 정도 떨어진 곳에 위치한 용인시 이동면 덕성리 소재 달봉산으로 1991년 집중호우기간 동안에 많은 산사태가 발생하였다. 이 지역에 대하여 SINMAP을 적용하여 당시 산사태지도와 비교 분석한 결과 대부분의 산사태를 성공적으로 예측하였다. 또한 본 연구에서는 SINMAP 모형의 적용에 필요한 3가지 매개변수인 흙의 내부마찰각, 점착력, T/R 산사태 예측에 미치는 영향과 적정범위에 대하여 검토하였다 본 연구를 통하여 SINMAP은 사면 경사가 급하고 토층의 두께가 얕은 국내산지의 산사태 위험도를 예비적으로 평가하는 유용한 도구가 될 수 있는 것으로 보인다.

• 한국지역지리학회지
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• 제1권1호
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• pp.61-68
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• 1995

전자 기술의 발달은 지도 제작에 있어서 엄청난 발전을 초래하고 없다. 컴퓨터의 활용과 원격탐사에 의한 영상 정보는 지도학과 그 관련 분야에 일대 혁신을 가져다 주었다. 사진 측량에 의존하던 각종 주제도의 제작은 인공위성에서 전송되는 자료에 의하여 그 기능이 대신하게 되었다. 이러한 변화는 기존의 지도 개념을 바꾸어 놓기에 충분하였다. 특히 컴퓨터 지도 분야는 대중성과 전문성을 동시에 가지고 있어서 다가오는 21세기에 그 수요가 폭증할 것으로 예상된다. 따라서 필자들은 지금까지 이 분야에 있어서 다양하게 개발되어온 결과들을 토대로 컴퓨터 지도에 관한 전방을 분석하였고 국내 컴퓨터 지도의 경우는 국내 GIS수준과 관련시켜 살펴보고 그 문제점과 개선책을 제시하여 보았다.

• Water Engineering Research
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• 제6권2호
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• pp.39-48
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• 2005

The Brazos River is one of the longest rivers contained entirely in the state of Texas, flowing over 700 miles from northwest Texas to the Gulf of Mexico. Today, the Brazos River Authority and Texas Commission on Environmental Quality interest in drought protection plan, waterpower project, and allowing the appropriation of water system-wide and water right within the Brazos River Basin to meet water needs of customers like farmers and local civilians in the future. Especially, this purpose of this paper primarily intended to provide the data for the engineering guidelines and make easily geological mapping tool. In the Brazos River basin, many stream-flow gage station sites are not working, and they can not provide stream-flow data sets enough for development of the Probable Maximum Flood (PMF) for use in the evaluation of proposed and existing dams and other impounding structures. Integrated GIS-Spatial Interpolation (GIS-SI) tool are composed of two parts; (1) extended GIS technique (new making interface for hydrological regionalization parameters plus classical GIS mapping skills), (2) Spatial Interpolation technique using weighting factors from kriging method. They are obtained from the relationship among location and elevation of geological watershed and existing stream-flow datasets. GIS-SI technique is easily used to compute parameters which get drainage areas, mean daily/monthly/annual precipitation, and weighted values. Also, they are independent variables of multiple linear regressions for simulation at un gaged stream-flow sites. In this study, GIS-SI technique is applied to the Brazos river basin in Texas. By assuming the ungaged flow at the sites of Palo Pinto, Bryan and Needville, the simulated daily/monthly/annual time series are compared with observed time series. The simulated daily/monthly/annual time series are highly correlated with and well fitted to the observed times series.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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• pp.45-48
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• 2008

Since the mid-2000, so-called Web 2.0 paradigm was emerged and has been widely extended to actual Web markets with supporting Web technologies. Among Web 2.0 services, mashups with Open APIs is regarded as one of core technologies. Web mapping is also the most dominant mashup application in Open API-based applications, so that various mashups with Google Map API and other Open APIs are developing. In this paper, current technological status is explained with web GIS file formats of KML. While, a prototype is web-based GIS layer authoring system for general users, without any kinds of GIS tools and external spatial databases. This mashup application will be used web-based feature extraction for geo-spatial web for public users.

• 한국지형공간정보학회:학술대회논문집
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• 한국지형공간정보학회 2004년도 추계학술발표대회 논문집
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• pp.123-128
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• 2004

최근 디지털 카메라(Digital camera), 다중/고분광 영상(Mumltispectral/Hyperspectral image), LiDAR(Light Detection and Ranging), InSAR(Interferometric SAR)와 같이 지상을 보다 상세하고 높은 정확도로 지상을 매핑할 수 있는 센서들이 출현하고 있다. 이러한 다양한 정보 취득 자료를 충분히 활용하여 통합하기 위해서는 영상에 대하여 정확한 기하보정 또는 정사영상의 제작과 LiDAR 자료와 같은 경우 평면위치의 오차를 조정하여 다중자료들 간의 정확한 지형보정(Coregistration)이 필요하다. 본 연구에서는 AIR-MS 자료를 이용하여 즉, 항공기로부터 취득한 LiDAR(Height와 강도(Intensity) 자료), digital camera을 통합하고, 기존의 컬러항공사진 및 1:1000 수치지도를 이용하여 3D GIS 자료의 생성을 시도하였다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.793-794
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• 2003

Forest fire monitoring prototype system was developed by National Development Agency of Japan (NASDA) and the Ministry of Agriculture, Forestry and Fisheries of Japan (MAFF) to verify the usefulness of interoperabile system to study new services of Earth observation satellite data distribution for a practical application. In this system, a standard interface of Web based GIS technology, OpenGIS Consortium (OGC) technology, was adopted. This system is also expected to encourage data sharing activities in Digital Asia Network (DAN) as a demonstration system.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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• pp.840-843
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• 2006

The aim of this study was to detect landslide using satellite image and apply the landslide to probabilistic landslide-susceptibility mapping at Gangneung area, Korea using a Geographic Information System (GIS). Landslide locations were identified by change detection technique of KOMSAT-1 (Korea Multipurpose Satellite) EOC (Electro Optical Camera) images and checked in field. For landslide-susceptibility mapping, maps of the topography, geology, soil, forest, lineaments, and land cover were constructed from the spatial data sets. Then, the sixteen factors that influence landslide occurrence were extracted from the database. Using the factors and detected landslide, the relationships were calculated using frequency ratio, one of the probabilistic model. Then, landslide-susceptibility map was drawn using the frequency ration and finally, the map was verified by comparing with existing landslide locations. As the verification result, the prediction accuracy showed 86.76%. The landslide-susceptibility map can be used to reduce hazards associated with landslides and to land cover planning.

• 대한토목학회논문집
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• 제26권1D호
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• pp.169-175
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• 2006

최근, 사면붕괴는 산악지역에 접해있는 국도변에서 자연재해로 발생하고 있다. 산악지역의 급속한 도로개설, 확장 등 경제 개발로 인하여 사면붕괴와 관련된 사고로 직결된다. 따라서, 국도 안전관리와 국도 기능을 유지하기 위하여 사면점검의 지속적인 관리가 수행되어야 한다. 본 연구에서는 접도사면의 유지관리에 따른 재래적 Face mapping과는 차별화된 GIS기법을 적용하였다. 지상 LiDAR를 이용하여 사면전문가 관점에서 사면 Face mapping을 통한 정확한 외형적 분석결과를 취득하였으며 그 결과를 외적 안정성 평가의 기준으로 붕괴발생 사면정보로 활용할 수 자료로 변환하였다. 또한, 현재 운영 중인 도로절토사면관리(CSMS) 데이터베이스 뿐 만아니라 업무활용도를 높일 수 있도록 인터넷 GIS 기반의 도로 위험 평가, 관리 기법을 개선하였다.

• 대한원격탐사학회지
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• 제6권2호
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• pp.135-151
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• 1990

Solid and hazardous waste disposal site selection by using GIS(Geographic Information System) is the purpose of this study. The criteria of site selection are usually defined in accordance with geological, cultural and social characteristics. Unadequate adaptation of these criteria in a site selection may cause serious problem of water and soil pollution. The environmental information for extraction of these criteria consist of a lot of data : geology, geomorphology, hydrogeology, engineering geology, cultural and social information.... GIS could be easily applied to construct of this environmental information data base, and carry out cartography simulation using overlay mapping technique(polygon overlay). ARC/INFO(GIS system) was used for these studies, and AML(ARC/INFO Macro Language) in this system provided more variable and effective methods for cartography simulation. TM(Thematic Mapper) images were used for the evaluation of land cover/use in the studied area, by using ERDAS image processing system.