• Spatial Information Research
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• 제10권4호
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• pp.551-565
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• 2002

To carry out systematic groundwater assessment, exploration and management and to use these for protection of optimal groundwater yield, a data analysis and management system is required. Thus, the object of this research was to develop and apply software that integrates GIS and groundwater modeling: GISGAM (GIS for groundwater analysis and management system). The GIS program ArcView and the groundwater-modeling program MODFLOW were used for the GISGAM. The program components consist of a pre-processor, a processor, and a post-processor for groundwater modeling. In addition, GIS functions such as input, manipulation, analysis and output of data were embedded into the program. In applying the program to pilot area, topography, geology, soil, land use and well databases, and a groundwater flow model were constructed for the study area. This case study revealed the advantage and convenience of groundwater modeling using GIS capabilities. By integrating GIS and the groundwater model, the impact of changing values of hydrogeological constants on model results could be more easily evaluated.

• 대한공간정보학회지
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• 제15권1호통권39호
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• pp.3-7
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• 2007

현대사회는 지능적으로 고도화 되는 범죄에 대응하기 위하여 범죄 현상을 분석하려는 노력이 다각적으로 행해지고 있다. 컴퓨팅 기술과 GIS 기술을 이용한 범죄의 공간적 특성을 분석하려는 연구는 범죄 분야에서 최근 관심을 가지는 부분이다. 본 연구에서는 다양한 공간적인 특성이 나타나는 지역을 선정하여 범죄분포의 특성을 밝혀보고자 한다. 범죄는 발생 빈도가 높은 폭력, 절도, 강도, 성폭행의 범죄에 대해서 재구성하였으며 변수 도출을 위한 이론적 배경은 생활양식-일상이론과 환경범죄학을 기초로 하였다. 분석 기법으로는 Hot spot 기법을 이용하여 범죄의 분포 형태를 분석하였으며 버퍼 분석을 하여 범죄 요인과 범죄 사이의 상관관계를 도출하였다. 분석된 자료를 통하여 최종적인 범죄 지도를 작성하였으며 이를 통하여 범죄율이 높은 지역을 공간적으로 선정할 수 있으므로 범죄의 예방에 효율적으로 활용될 수 있을 것이라 판단된다.

• 대한지리학회지
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• 제45권4호
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• pp.502-520
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• 2010

이 연구의 주된 목적은 공간 클러스터의 범역을 설정하는 GIS-기반 방법론을 개발하는 것이다. 주요 과제는 지리적 경계 분석과 LISA-기반 클러스터 탐지에 대한 기존 방법론을 비교 검토함으로써 진일보한 방법론을 고안하고, 그것을 실행하는 GIS-기반 프로그램을 개발하는 것이다. 주요 연구 결과는 다음과 같다. 첫째, 기존 방법론을 검토한 결과, LISA를 이용한 AMOEBA 기법이 가장 타당한 것으로 판단되었다. 둘째, 수정 AMOEBA 기법의 알고리즘을 확립했으며 실행 소프트웨어를 상용 GIS 프로그램의 확장 기능형태로 개발하였다. 셋째, 수정 AMOEBA 기법을 실험 데이터와 실 데이터에 적용한 결과 제안된 기법의 유용성이 확인되었다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.911-913
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• 2003

Recently in order to process forest official task more effectively and scientifically the previous of that which is focused on document and inventory, should be applied with the spatial information technology. Especially, the forest information remote sensing system has to be developed using digital photogrammetry and GIS. In this study the forest information remote sensing system is implemented to manage forest resource and forest official effectively especially by constructing database of forest environment information and cadastral information, overlaying various thematic maps, and performing spatial analysis using GIS and aerial photograph. For this, the attribute data and spatial data of aerial photograph, digital topography map, forest cadastral map, forest type map, forest use map should be reprocessed and stored in Oracle. Also, the user interface is developed by using Visual Basic 6.0 and MapObjects 2.1 of ESRI based on CBD(Component Based Development).

• 대한원격탐사학회지
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• 제27권3호
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• pp.379-388
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• 2011

At present, GEOBIA (Geographic Object-based Image Analysis), heir of OBIA (Object-based Image Analysis), is regarded as an important methodology by object-oriented paradigm for remote sensing, dealing with geo-objects related to image segmentation and classification in the different view point of pixel-based processing. This also helps to directly link to GIS applications. Thus, GEOBIA software is on the booming. The main theme of this study is to look into the applicability of geo-spatial processing open source to GEOBIA. However, there is no few fully featured open source for GEOBIA which needs complicated schemes and algorithms, till It was carried out to implement a preliminary system for GEOBIA running an integrated and user-oriented environment. This work was performed by using various open sources such as OTB or PostgreSQL/PostGIS. Some points are different from the widely-used proprietary GEOBIA software. In this system, geo-objects are not file-based ones, but tightly linked with GIS layers in spatial database management system. The mean shift algorithm with parameters associated with spatial similarities or homogeneities is used for image segmentation. For classification process in this work, tree-based model of hierarchical network composing parent and child nodes is implemented by attribute join in the semi-automatic mode, unlike traditional image-based classification. Of course, this integrated GEOBIA system is on the progressing stage, and further works are necessary. It is expected that this approach helps to develop and to extend new applications such as urban mapping or change detection linked to GIS data sets using GEOBIA.

• 환경영향평가
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• 제22권5호
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• pp.397-408
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• 2013

The purpose of this study is to analyze water cycle area ratio and spatial evaluation of water cycle in urban area of Changwon-si, Gyeongsangnam-do. Water cycle area ratio are analyzed by using spatial data of land-cover and land-use, and Hot spot analysis of GIS program was used for spatial evaluation of water cycle. The results are as below. Firstly, the high water cycle area ratio areas were forests, parks, and rivers, but urban areas covered asphalt and concrete were low under 40%. Public institutions and co-residential of urban areas were higher than others because of high area ratio of pervious land-cover. Spatial evaluation of water cycle was analyzed to vulnerable areas there are dense residential and commercial area. These areas are really occurring frequently flooding and immersion, therefore, is required water management facilities and improvement of land-cover from impervious to pervious. In the future, it will require additionally analysis of water cycle area ratio supplemented data of water management facility and ground water.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2006년도 춘계 학술발표회 논문집
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• pp.1046-1053
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• 2006

In the large scale recent reclaiming works performed within the wide spatial boundary, evaluation of long-term consolidation settlement and residual settlement of the whole construction area is sometimes made with the results of the limited ground investigation and measurement. Then the reliability of evaluation has limitations due to the spatial uncertainty. Additionally, in case of large scale deep excavation works such as urban subway construction, there are a lot of hazardous elements to threaten the safety of underground pipes or adjacent structures. Therefore it is necessary to introduce a damage prediction system of adjacent structures and others. For the more accurate analysis of monitoring information in the wide spatial boundary works and large scale urban deep excavations, it is necessary to perform statistical and spatial analysis considering the geographical spatial effect of ground and monitoring information in stead of using diagrammatization method based on a time-series data expression that is traditionally used. And also it is necessary that enormous ground information and measurement data, digital maps are accumulated in a database, and they are controlled in a integrating system. On the abovementioned point of view, we developed Geomonitor 2.0, an Internet based real time monitoring program with a new concept by adding GIS and geo-statistical analysis method to the existing real time integrated measurement system that is already developed and under useful use. The new program enables the spatial analysis and database of monitoring data and ground information, and helps the construction- related persons make a quick and accurate decision for the economical and safe construction.

• 대한토목학회논문집
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• 제26권4D호
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• pp.695-702
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• 2006

GIS 기반 공간의사결정지원시스템에서 기존의 단순중첩에 의한 부울논리는 정보의 손실과 요소간 가중치를 반영하지 못하는 문제가 있다. 따라서, 이러한 문제들을 효과적으로 개선하기 위해서는 분석계층처리 (AHP)와 같은 전문가 시스템이 필요하다. 본 연구의 목적은 AHP 기법과 GIS 공간분석을 활용한 작물재배 적지 선정기법의 효용성을 제시하는 것이다. 먼저 토양, 작물 그리고 농업경영 전문가들의 설문조사를 통해 지형, 배수등급, 토성 그리고 경사에 대한 AHP 가중치를 평가하였다. 이러한 요소별 AHP 가중치를 기반으로 GIS 공간분석을 활용하여 복분자 재배 적지분석을 수행하였다. AHP 기법의 효용성을 평가하기 위해, 쌍치면 일대의 복분자 재배지를 도면으로 구축한 후 기존의 부울논리에 의한 적지선정 결과와 비교한 결과 AHP 기법에 의한 적지선정 결과가 현장을 더 잘 반영하고 있는 것으로 분석되었다.

• Spatial Information Research
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• 제19권2호
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• pp.65-70
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• 2011

홍보우편 서비스의 활성화와 효율적인 마케팅 캠페인을 위해서 GIS 및 시간/공간마이닝을 접목한 홍보우편 시스템을 개발하였다. 이 시스템은 정확한 고객선정을 위해서 순차/주기패턴을 이용한 구매 성향 정보와 RFM 분석 및 군집화 기법을 이용한 라이프스타일 군집 정보를 제공한다. 제안한 홍보우편 시스템을 통해 원청업체는 고객의 요구사항에 맞는 마케팅 캠페인이 가능하며, 온라인상에서 고객 선정, 홍보물 제작 및 배달까지의 "one-stop" 서비스가 가능하다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2005년도 Proceedings of ISRS 2005
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• pp.321-324
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• 2005

In these days, the management and visualization of 3D geo-spatial information is regarded as one of an important issue in GiS and remote sensing fields. 3D GIS is considered with the database issues such as handling and managing of 3D geometry/topology attributes, whereas 3D visualization is basically concerned with 3D computer graphics. This study focused on the design and implementation for the OpenGL API-based rendering system for the complex types of 3D geo-spatial features. In this approach 3D features can be separately processed with the functions of authoring and manipulation of terrain segments, building segments, road segments, and other geo-based things with texture mapping. Using this implementation, it is possible to the generation of an integrated scene with these complex types of 3D features. This integrated rendering system based on the feature-based 3D-GIS model can be extended and effectively applied to urban environment analysis, 3D virtual simulation and fly-by navigation in urban planning. Furthermore, we expect that 3D-GIS visualization application based on OpenGL API can be easily extended into a real-time mobile 3D-GIS system, soon after the release of OpenGLIES which stands for OpenGL for embedded system, though this topic is beyond the scope of this implementation.