• Journal of Environmental Science International
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• v.29 no.12
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• pp.1249-1260
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• 2020

Non-point source pollutants have characteristics the render them difficult to manage owing to the uncertainty of flow paths. As agricultural non-point sources account for more than 57% of non-point source pollutants, the necessity for management is increasing. This study examines the possibility of utilizing land cover maps to suggest a more appropriate method of setting management priority for agricultural non-point sources in the Daecheong Lake area and draws implications by comparing the results derived using the cadastral map, as mentioned in the TMDL Basic Policy. To define the prioritized areas for management, the pollution load was calculated for each subbasin using the formula from the TMDL technical guidelines. As a result, the difference in the average pollution load between the land cover map and cadastral map ranged from 11.6% to 21% among the subbasins. In almost all subbasins, there were differences in the ranking of management priorities depending on the land information that was used. In addition, it was found that it was reasonable to use the level 3 land cover map to calculate the load generated by the land system for examining the implementation goals and methods of each data and comparing them with satellite images.

• Journal of the Korean Association of Geographic Information Studies
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• v.24 no.2
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• pp.91-101
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• 2021

This study attempted to conduct the study from a macro perspective more specifically through the temporal and spatial analysis of Minbuk villages according to a change in a Civilian Control Line, such as a social and spatial distribution and a change of the existing Minbuk villages. To this end, this study conducted the spatial analysis for the change in the Minbuk villages according to the adjustment of the Civilian Control Line in time series by using a map of the Armistice Agreement Vol. 2, Google Earth, a digital cadastral map, an administrative district map, and the like are used as spatial data, and summarizing and constructing, as attribute data, a statistical yearbook, Ministry of Defense and Cheorwon-Gun notification data, a Land Use Regulation Information System, and cadastral map attribute information. After the enactment of the Military Facility Protection Act, the analysis was performed on a 20-year basis based on the 1976 statistical yearbook of which the Civilian Control Line was drawn. As a result, the total area of the Civilian Control Zone in Cheorwon from 1975 to 2015 decreased by 105.8 km², and 9 of 14 Minbuk villages were released and only 6 villages existed. The unoccupied villages were analyzed as 14 villages, 10 fewer than the existing surveyed or statistical villages. The movement of the Civilian Control Line to the north may disappear the unique characteristics of the Minbuk villages but should be done carefully as it is closely related to the lives of the current residents, and policies should be established in terms of sustainable development and conservation of the villages. This study is significant in conducting the temporal and spatial analysis, which is the basis of the Minbuk regions and the Minbuk villages, and may be used as basic data necessary for subsequent analysis study.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.25 no.6_1
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• pp.499-505
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• 2007

A method of improving the correctness and confidence in land use classification as well as urban spatial structure analysis of local governments using GIS and satellite imagery is suggested. This study also compares and analyzes LSAS (Land Suitability Assessment System) results using two approaches-LSAS with priority classification, and LSAS using standard estimation factors without priority classification. The conclusions that can be drawn from this study are as follows. First, a method of maintaining up-to-date local government data by updating the LSAS database using high-resolution satellite imagery is suggested. Second, to formulate a scientific and reasonable land use plan from the viewpoint of territory development and urban management, a method of simultaneously processing the two described approaches is suggested. Finally, LSAS was constructed by using varieties of land information such as the cadastral map, the digital topographic map, varieties of thematic maps, and official land price data, and expects to utilize urban management plan establishment widely and effectively through regular data updating and problem resolution of data accuracy.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2004.04a
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• pp.521-525
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• 2004

우리나라는 지난 반세기 동안 6ㆍ25전쟁과 무분별한 국토의 개발로 인하여 문화재가 많이 파괴되고 유실되는 피해를 입어왔다. 한번 손실된 문화재는 기존 데이터 없이는 완전복구가 어려운 실정이지만, 이러한 문화재의 복원을 위해서 오늘날 아직도 일제시대의 지적도를 아무런 검증 없이 사용하고 있는 것이 현실이다. 또, 일제시대 지적측량의 기술상의 착오, 지적도면의 신축에 따른 오차를 무시하고 고분의 복원작업에 그대로 사용하고 있다. 따라서, 본 연구에서는 TS를 이용하여 일제시대의 지적도와 현재의 현황측량을 바탕으로, 일제시대의 지적도가 오늘날에 와서 고분들을 복원할 때 얼마나 이용가치가 있는지 판단 할 수 있는 토대를 만들기 위함이고, 또 과거와 현재의 자료를 비교 분석함으로써 역사적 사실을 알 수 있는 기초 자료기반을 구축하는데 있다.

• 한국공간정보시스템학회:학술대회논문집
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• 2007.06a
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• pp.95-101
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• 2007

지적데이터가 기초지방자치단체에 구축되고 많은 예산과 인력을 투입 하여 유지 관리 되고 있으며, 이를 기본도로 이용한 GIS의 구축이 활성화 되고 있다. 이에 따라 지적데이터의 유통도 급속히 늘어나고 있으나, 이를 관장하는 지적법에 관련된 규정의 보완되지 않고 있으며 이에 대한 연구가 충분히 되고 있지 않다. 지적데이터 특성상 공공재로서 인식과 비교적 간단하게 복제되어 활용할 수 있기 때문에 공식 인증 되지 않은 지적데이터의 불법 유통으로 많은 문제점이 발생 되고 있다. 본 연구는 이러한 문제점을 보완하기 위하여 지적데이터의 지적재산권을 보호하여 유통 질서를 바로 잡음으로서 지적데이터의 신뢰성을 확보하고, 유통을 증진 시키고자 하였다. 연구를 진행하기 위하여 지적재산권과 관련된 국제적 동향 및 지적재산권 관련 법률 검토와 이와 관련된 판결을 분석하여 지적데이터의 지적재산권 보호의 법률적 타당성을 검토하였다. 그리고 이해당사자들의 인식 조사를 통하여 지적데이터의 지적재산권 보호에 대한 인식을 바탕으로 지적재산권 보호 방안을 제시 하고 지적데이터의 유통 질서를 마련하고자 하였다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2008.10a
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• pp.266-267
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• 2008

건설도면 CAD자료와 GIS자료를 연계하기 위해서는 임의의 좌표체계와 축척으로 표현된 건설도면 CAD 자료를 GIS 자료의 지도좌표로 변환하기 위한 과정 이 수행되어 야 한다. 본 연구에서는 준공과정에서 제출되는 건축물 CAD배치도상의 인접대지경계선 폴리곤과의 연속지적도상의 개별 필지 경계선의 형상 정합과정을 수행함으로써 좌표변환에 필요한 변수를 도출해 보았다. 이렇게 도출된 변환함수를 배치도면상의 건물경계선과 같은 다른 객체에 적용함으로써 개별 CAD자료를 GIS 자료에 연계할 수 있는 실좌표 부여 방법을 적용하고 평가해 보았다.

• International Union of Geodesy and Geophysics Korean Journal of Geophysical Research
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• v.25 no.1
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• pp.1-13
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• 1997

This paper presents a precise geoid (PNU95 Geoid) over the southern half of the Korean peninsula. The geoid using the OSU91A reference gravity model to degree and order of 167 with an integration radius of 27 km fits to the well-distributed 71 GPS data best. The RMS difference between the modeled geoid and the GPS/leveling-implied geoid is 0.15 m, and its accuracy with respect to the GPS/leveling distance is 1.1 ppm. The resulting PNU95 Geoid varies from 21.8 m at the western part of the peninsula, Kanghwa-Do, to 30.2 m at the south-eastern part. Kyungju, generally increasing eastward.

• Spatial Information Research
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• v.1 no.1
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• pp.55-61
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• 1993

The need for unified graphic base with high accuracy for nation¬wide is emerging since many facility management organizations and local governments have been taking steps for introducing facility management systems from the late of 1980's. A major finding of the above efforts was the importance of establishment of National Land Information System supporting all land management and use, administration purpose and effective decision-making. So to meet the recent need and to prepare future information society, a study is going on progress for in t roduc i ng Parce I-Based Land In forma t ion Sys tern based on I arge-sca I e cadastral graphic data and parcel information, capable to link with admini¬stration, communication, statistics etc.

• Korean Journal of Geomatics
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• v.1 no.1
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• pp.61-67
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• 2001

This study aims to develop the Extended Urban Land Information System (EULIS) which can support the sustainable urban management. Although the existing Urban Land Use Information system (ULUIS) that aids the micro-level land use information is a good means for the understanding of urban spatial structure and district-level planning and management (such as urban design, redevelopment planning and district-level transportation planning, etc.), it has some limitations in supplying the information for sustainable urban management, such as environmental and traffic analysis, urban infrastructure's carrying capacity analysis, etc. The EULIS is designed to efficiently supply the information for sustainable urban management. For the successful construction of EULIS, the followings have to be considered. 1) the integration of topographic maps which contain the building's footprints and cadastral maps which contain the parcel's boundary, 2) the integration of EULIS and FM (Facility Management) system for the full utilization of information about capacity analysis of infrastructure, 3) the construction of standardized georeferencing system and spatial unit for the combined use of environment and traffic census data. This study shows 1) why EULIS is needed for the sustainable urban management and which elements are needed for the system,2) the E-R data model for the EULIS, 3) the strategies for the construction of EULIS and 4) the conclusion.

• The Journal of Asian Finance, Economics and Business
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• v.9 no.9
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• pp.167-179
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• 2022

The study aims to determine the influencing factors and their impact on the management of the forest land used for production allotted to peasant households and proposes solutions to improve its management. Secondary data was calculated until the end of 2019 at state agencies. The primary data was collected through 2 steps. To determine the factors influencing forest land management for production, step one involved a survey of 100 households that were given access to forest land. Step 2 involved a survey of 215 households to determine how factors impacted the Likert scale's five levels. The study also used a multivariate regression model and SPSS24.0 software to determine the impact rates of factor groups. The study indicated 43 factors that belong to 11-factor groups affecting the management of forest land for production. The policy and legal factors group is the most influential, with an impact rate of 12.72%, followed by 10 other factor groups with impact rates ranging from 4.08% to 11.74%. The solutions include improving policies and laws, strengthening the dissemination of policies and laws; encouraging investment, completing cadastral work, intensifying inspection, examination, and sanctioning of administrative violations of land, upgrading the infrastructure system, and ensuring enough human resources to manage forest land.