• Journal of the Korean Association of Geographic Information Studies
• /
• v.11 no.4
• /
• pp.64-75
• /
• 2008

Since the current database systems for managing geotechnical investigation results were limited by being described boring test result in point feature, it has been trouble for using other GIS data. Although there are some studies for spatial characteristics of subsurface modeling, it is rather lack of being interoperable with GIS, considering geotechnical engineering facts. This is reason for difficulty of practical uses. In this study, we has developed subsurface spatial information model through extracting needed geotechnical engineering data from geotechnical information DB. The developed geotechnical information clustering program(GEOCL) has made a cluster of boring formation(and formation ratio), classification of layer, and strength characteristics of subsurface. The interpolation of boring data has been achieved through zonal kriging method in the consideration of spatial distribution of created cluster. Finally, we make a subsurface spatial information model to integrate with digital elevation model, and visualize 3-dimensional model by subsurface spatial information viewing program(SSIVIEW). We expect to strengthen application capacity of developed model in subsurface interpretation and foundation design of construction works.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.8 no.2
• /
• pp.103-116
• /
• 2005

Although there have been many researches to construct a database of water distribution networks using GIS, most of them were not linked with an model for the analysis of pipe networks because it is difficult to make spatial data about complex water distribution networks for building a detail model. Therefore, it is necessary to develop the method based on GIS to build geographical data for design of water distribution pipeline systems. In this study, an innovated design support technique using GIS is proposed for a hydraulic analysis model of water distribution networks. With the function of spatial analysis in GIS system, the results from a pipe network model are used to analyze the suitability of the location of pipeline network, the spatial suitability comprised the analysis of the degree of pipe age, the altitude distribution of water pressure, and the water supply system for the customer.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
• /
• 2010.06a
• /
• pp.306-311
• /
• 2010

수질모의에는 유속, 유량, 저수량, 체류시간의 자료를 비롯한 수심, 하폭, 유하거리, 수표면적과 등 다양한 수리학적 정보를 필요로 하며, 이러한 자료들은 수질모의의 기초자료로서 그 중요도와 활용도가 높게 나타나고 있다. 하지만 기초자료의 구축 방안 및 기준이 표준화되지 않아 각 기관별로 상이한 데이터를 보유하고 있으며, 기초자료의 선정에 따라 연구 결과가 달라지는 동 관련 연구의 신뢰도와 정확도에까지 영향을 미치고 있다. 이에 본 연구에서는 수질모의에 주로 쓰이는 1차원 수질모의에 필요한 수리학적 기초자료의 체계화된 구축방안을 마련하고, 이를 GIS 데이터로 정의한 한국형 Stream Reach File의 구축방안을 제시하고자 한다. 우선 기존에 구축된 미국 EPA Reach File 구축사례를 기초로 하여 관련 자료의 분석과 속성 내역을 파악하고 국내 실정에 적합한 방안을 제시하였다. 본 설계안에 사용되는 기초자료는 기존에 구축된 자료를 최대한 활용하였으며, 필요에 따라 데이터 편집 과정을 수행토록 하였다. 본 연구 결과를 따라 실제 Stream Reach File을 구축할 수 있으며, 이를 통해 관련 연구의 체계화된 기초자료의 제공이 가능할 것이다. 또한, 향후 오염원데이터와 연계하여 수질오염총량관리제를 지원할 수 있으며, 다양한 정보와 결합하여 다차원적인 수질모의도 가능할 것이다 나아가 Reach File에 대한 지속적인 연구를 통해 개선사항 및 보완점을 도출하여 보다 발전되고 완성된 한국형 수리기초자료를 구축하여야 할 것이다.

• Spatial Information Research
• /
• v.18 no.2
• /
• pp.13-24
• /
• 2010

The purpose of this research is to explore the possibility of geographic education by implementing the map-based geographic education site which mashed up with Google earth by referring the various materials of geographic education which exist in on-line and off-line. In recent years map-based geographic education is required by the radical change of geoweb environments, but there have been few researches in this field. This research is folded up as follows: First, we designed the contents through the textbook analysis and then collect various data related to the contents such as pictures, video clips, conceptual map, etc. which are required to explain the concept. Second, we mashed up the collected data on the Google earth by using the Google's open API. Third, we implemented the geographic education website based on the classification of contents in textbook and the various collected data. This research is important in both that it explores the possibility of the map-based education rather than the text-based education in the geographic field which handles mainly the space and finds the best method to express the various concepts of the textbook on the geoweb environments.

• Proceedings of the Korea Contents Association Conference
• /
• 2008.05a
• /
• pp.441-443
• /
• 2008

The types of national land monitoring data have been changed from the static to the dynamic including the real time and streaming data. So, it would be needed to integrate these national land monitoring data based on the efficient system. In this paper, some cases on the system design for the data distribution were investigated. And also, system design strategies were considered.

• Journal of Korean Society for Geospatial Information Science
• /
• v.21 no.1
• /
• pp.87-93
• /
• 2013

As the progress regarding spatial analysis on features such as landscape, sunlight, shadow, and direct ray using 3D simulation, it is required to research the creation of 3D terrain models crucial for 3D simulations. In this paper, we suggested the methods to create the 3D terrain model for the state after development, by transfer the 2D plan to 3D terrain model using the normal equation. Automated algorithm producing 3D terrain model from 2D plan was developed. And It is expected to be needed more studies detailed.

• Journal of the Korean Society for Library and Information Science
• /
• v.54 no.1
• /
• pp.223-242
• /
• 2020

Innovation in university library spaces is challenging to effectively support the education of the university's future learning and innovation capabilities, including creativity, critical thinking, communication and collaboration. The purpose of this study is to investigate the perception and need of library space from the perspective of users and librarians, and to suggest the direction of space innovation through this. For this study, we designed each questionnaire for users and librarians, and collected responses from 363 users and 186 librarians in the university library to analyze their needs and perceptions about their library space. The librarian's need for the space was analyzed by the size of the library and the demographic factors of the librarian. The user's need was analyzed by the user's attributes. In addition, we analyzed the differences between librarians and users for the need for space and space services. The results of this paper may be useful for reference when planning a new library or building a space based on user.

• Journal of the Korean Society for Library and Information Science
• /
• v.49 no.2
• /
• pp.135-168
• /
• 2015

This study intends to design a curation system to support elementary and secondary schools for reusing and sharing instructional materials efficiently. It is proved through interviewing teachers at the chalkface that they utilize instructional materials, and there are some differences between elementary schools and secondary schools about the media for creating the instructional materials, and the purpose of using them. The functional requirements of curation system for reusing and sharing instructional materials are derived from questionnaires. The investigation of the existing curation systems was conducted to identify the strategies for policy, design, standard, and tools for effective operation of the digital curation system. The tasks and the functions of the curation system designed by reflecting the results of this study are as following. The tasks related to individual workspace include 'authentication', 'system configuration', 'registration' of created materials, 'material keeping' for the individual, and 'reusing (editing)'. The tasks related to sharing workspace contain 'receiving' for sharing, 'archiving' for accessing, 'peer evaluation', 'accessing' through the retrieval, and 'bulletin board'.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2012.05a
• /
• pp.678-682
• /
• 2012

본 연구는 한국건설기술연구원의 주요사업인 "산지하천 유역의 홍수예측을 위한 수문조사(2011~2015년)"의 Test-bed 유역중의 하나인 설마천 유역(경기도 파주시 적성면)을 운영하면서 신뢰성 있는 수문자료를 지속적으로 획득함과 동시에 산지하천 유역의 홍수량 예측과 재해방지 설계기법을 개선하고 수문정보를 제공하는데 있다(Test-bed 유역중의 또 하나인 차탄천 유역은 2011년 수문관측 기반구축 완성). 이를 위하여 2011년에도 지속적인 수문조사를 하였으며, 수문자료의 품질 향상을 위한 관측기기의 유지관리와 수집된 자료의 처리절차를 통하여 신뢰성 있는 수문자료를 생성하고, 이들 자료를 바탕으로 유역의 수문특성을 분석하였다. 또한 홍수량 예측과 재해방지 설계기법 개선을 위해서는 관련 기술조사, 평가와 취약 설계인자를 도출하였으며, 정량화를 위한 시험 및 조사방법을 결정하는 과정을 진행하고 있다. 설마천-차탄천 수문정보시스템(http://seolmacheon.kict.re.kr)은 Test-bed 유역(설마천 유역 이외에 차탄천 유역 포함)에서 생성되는 수문자료를 수집, 저장, 공유하는 기능을 포함하고, 홍수예측 모형(집중형 모형)과 강우레이더 자료(RDAPS 자료)를 결합한 산지하천의 홍수예측을 모의할 수 있는 기능을 추가하였으며, 향후 모의의 정도를 개선하고자 다른 모형과 다른 강우레이더 자료 도입을 목표로 진행할 예정이다. 그리고 Test-bed 유역을 기반으로 한 홍수량 예측 모형의 적용성 평가를 통해 중 소규모 산지하천 유역에 적합한 실시간 홍수예보 시스템 개발과 유역 수문조사 지침서 작성을 통해 가이드를 제시하고자 한다. 2011년 설마천 유역에서 생성된 자료로는 6개 우량관측소의 우량자료, 2개 수위관측소의 하천수위 및 지하수위, 유량측정성과 등이 있으며, 이로부터 산정된 유역평균우량과 유량자료 등이 있다. 확정된 강우-유출자료를 이용하여 강우의 호우사상 분석(강우강도, 지속기간), 강우의 지속기간별 최대강우량, 강우의 시 공간 분포 특성 분석, 월별 유출 및 주요 호우사상의 유출특성 분석 등 기본적인 강우-유출 특성을 분석하였다. 그리고, 유량측정성과의 불확실도 분석을 통하여 측정한 유량자료의 정확도를 제고하였다. 설마천 유역에서 축적된 수문자료는 자료의 공유를 통하여 자료의 검증을 확보함과 동시에 연구성과가 수자원 개발 분야에 활용되기 위해서는 지속적이고 안정적인 자료확보와 수문관측 기술개발을 위한 노력과 투자가 더욱더 필요한 상황이다.

• Geophysics and Geophysical Exploration
• /
• v.8 no.4
• /
• pp.251-261
• /
• 2005

The quality of MT (magnetotellurics) data highly depends on the level of artificial noise form industrial sources. We have conducted the feasibility study of MT noise modelling using digital spatial data and spatial modelling through the comparison between the predicted and the measured MT noises. A simple noise model predicting the intensity of electromagnetic field radiated from the latent noise sources, that is, the electric facilities in the building, road and high-voltage powerline, is developed in consideration of the propagation property of electromagnetic waves. From the analysis of correlation between the predicted and the measured noise power, the correlation coefficients of electric field are higher than those of magnetic field in whole frequency band. The magnetic field component has the high correlation in the narrow band near 60 Hz only. The spatial noise modelling proposed in this study would provide some useful informations for the MT surveys in the noisy environment like urban area.